The Bank of New York Mellon Corporation (BK) 10-K27 Feb 202019 FY Annual reportFinancial data

Company Profile

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
Document and Entity Information - USD ($)	Dec. 31, 2019	Jan. 31, 2020	Jun. 30, 2019
Entity Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2019
Document Transition Report	false
Entity File Number	001-35651
Entity Registrant Name	THE BANK OF NEW YORK MELLON CORPORATION
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	13-2614959
Entity Address, Address Line One	240 Greenwich Street
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10286
City Area Code	212
Local Phone Number	495-1784
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 41,580,614,768
Entity Common Stock, Shares Outstanding (shares)		890,210,117
Documents Incorporated by Reference	Portions of the following documents are incorporated by reference in the following parts of this Form 10-K: The Bank of New York Mellon Corporation 2020 Proxy Statement-Part III The Bank of New York Mellon Corporation 2019 Annual Report to Shareholders-Parts I, II and IV
Amendment Flag	false
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Entity Central Index Key	0001390777
Current Fiscal Year End Date	--12-31
Common Stock, $0.01 par value \| New York Stock Exchange
Entity Information [Line Items]
Title of 12(b) Security	Common Stock, $0.01 par value
Trading Symbol	BK
Security Exchange Name	NYSE
Series C Noncumulative Perpetual Preferred Stock \| New York Stock Exchange
Entity Information [Line Items]
Title of 12(b) Security	Depositary Shares, each representing 1/4,000th of a share of Series C Noncumulative Perpetual Preferred Stock
Trading Symbol	BK PrC
Security Exchange Name	NYSE
6.244% Fixed-to-Floating Rate Normal Preferred Capital Securities of Mellon Capital IV \| New York Stock Exchange
Entity Information [Line Items]
Title of 12(b) Security	6.244% Fixed-to-Floating Rate Normal Preferred Capital Securities of Mellon Capital IV
Trading Symbol	BK/P
Security Exchange Name	NYSE

Consolidated Income Statement

Consolidated Income Statement - USD ($) shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Fee and other revenue
Asset servicing fees	$ 4,563	$ 4,608	$ 4,383
Clearing services fees	1,648	1,616	1,598
Issuer services fees	1,130	1,099	977
Treasury services fees	559	554	557
Total investment services fees	7,900	7,877	7,515
Investment management and performance fees	3,389	3,647	3,539
Foreign exchange and other trading revenue	654	732	668
Financing-related fees	196	207	216
Distribution and servicing	129	139	160
Investment and other income	968	240	64
Total fee revenue	13,236	12,842	12,162
Net securities (losses) gains — including other-than-temporary impairment	(17)	(47)	6
Noncredit-related portion of other-than-temporary impairment (recognized in other comprehensive income)	1	1	3
Total net securities (losses) gains	(18)	(48)	3
Total fee and other revenue	13,218	12,794	12,165
Operations of consolidated investment management funds
Investment income (loss)	57	(12)	74
Interest of investment management fund note holders	1	1	4
Income (loss) from consolidated investment management funds	56	(13)	70
Net interest revenue
Interest revenue	7,548	6,432	4,382
Interest expense	4,360	2,821	1,074
Net interest revenue	3,188	3,611	3,308
Total revenue	16,462	16,392	15,543
Provision for credit losses	(25)	(11)	(24)
Noninterest expense
Staff	6,063	6,145	6,033
Professional, legal and other purchased services	1,345	1,334	1,276
Software and equipment	1,222	1,062	985
Net occupancy	564	630	570
Sub-custodian and clearing	450	450	414
Distribution and servicing	374	406	419
Business development	213	228	229
Bank assessment charges	125	170	220
Amortization of intangible assets	117	180	209
Other	427	606	602
Total noninterest expense	10,900	11,211	10,957
Income
Income before income taxes	5,587	5,192	4,610
Provision for income taxes	1,120	938	496
Net income	4,467	4,254	4,114
Net (income) loss attributable to noncontrolling interests (includes $(26), $12 and $(33) related to consolidated investment management funds, respectively)	(26)	12	(24)
Net income applicable to shareholders of The Bank of New York Mellon Corporation	4,441	4,266	4,090
Preferred stock dividends	(169)	(169)	(175)
Net income applicable to common shareholders of The Bank of New York Mellon Corporation	4,272	4,097	3,915
Net income applicable to common shareholders of The Bank of New York Mellon Corporation used for the earnings per share calculation
Net income applicable to common shareholders of The Bank of New York Mellon Corporation	4,272	4,097	3,915
Less: Earnings allocated to participating securities	18	27	43
Net income applicable to common shareholders of The Bank of New York Mellon Corporation after required adjustment for the calculation of basic and diluted earnings per common share	$ 4,254	$ 4,070	$ 3,872
Average common shares and equivalents outstanding of The Bank of New York Mellon Corporation
Basic (shares)	939,623	1,002,922	1,034,281
Common stock equivalents	5,087	6,801	13,030
Less: Participating securities	(1,601)	(2,582)	(7,021)
Diluted (shares)	943,109	1,007,141	1,040,290
Anti-dilutive securities (shares)	4,014	6,804	12,383
Earnings per share applicable to the common shareholders of The Bank of New York Mellon Corporation
Basic (usd per share)	$ 4.53	$ 4.06	$ 3.74
Diluted (usd per share)	$ 4.51	$ 4.04	$ 3.72

Consolidated Income Statement (

Consolidated Income Statement (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Net (income) loss attributable to noncontrolling interests	$ (26)	$ 12	$ (24)
Investment Management
Net (income) loss attributable to noncontrolling interests	$ (26)	$ 12	$ (33)

Consolidated Comprehensive Inco

Consolidated Comprehensive Income Statement - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 4,467	$ 4,254	$ 4,114
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	151	(313)	853
Unrealized gain (loss) on assets available-for-sale:
Unrealized gain (loss) arising during the period	512	(416)	153
Reclassification adjustment	14	36	(3)
Total unrealized gain (loss) on assets available-for-sale	526	(380)	150
Defined benefit plans:
Prior service cost arising during the period	(1)	0	0
Net (loss) gain arising during the period	(87)	(189)	342
Foreign exchange adjustment	0	0	1
Amortization of prior service credit, net loss and initial obligation included in net periodic benefit cost	34	69	68
Total defined benefit plans	(54)	(120)	411
Net unrealized gain (loss) on cash flow hedges	3	(10)	9
Total other comprehensive (loss) income, net of tax	626	(823)	1,423
Total comprehensive income	5,093	3,431	5,537
Net (income) loss attributable to noncontrolling interests	(26)	12	(24)
Other comprehensive (income) loss attributable to noncontrolling interests	(3)	11	(15)
Comprehensive income applicable to shareholders of The Bank of New York Mellon Corporation	5,064	3,454	5,498
Other comprehensive (loss) income attributable to The Bank of New York Mellon Corporation shareholders	$ 623	$ (812)	$ 1,408

Consolidated Balance Sheet

Consolidated Balance Sheet - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Securities:
Held-to-maturity (fair value of $34,805 and $33,302)	$ 34,483	$ 33,982
Available-for-sale	88,550	85,809
Loans	54,953	56,564
Allowance for loan losses	(122)	(146)
Goodwill	17,386	17,350
Intangible assets	3,107	3,220
Other assets (includes $419 and $742, at fair value)	20,221	21,298
Total assets	381,508	362,873
Deposits:
Long-term debt (includes $387 and $371, at fair value)	27,501	29,163
Total liabilities	339,780	322,005
Temporary equity
Redeemable noncontrolling interests	143	129
Permanent equity
Preferred stock – par value $0.01 per share; authorized 100,000,000 shares; issued 35,826 and 35,826 shares	3,542	3,542
Common stock – par value $0.01 per share; authorized 3,500,000,000 shares; issued 1,374,443,376 and 1,364,877,915 shares	14	14
Additional paid-in capital	27,515	27,118
Retained earnings	31,894	28,652
Accumulated other comprehensive loss, net of tax	(2,638)	(3,171)
Less: Treasury stock of 473,760,338 and 404,452,246 common shares, at cost	(18,844)	(15,517)
Total The Bank of New York Mellon Corporation shareholders’ equity	41,483	40,638
Nonredeemable noncontrolling interests of consolidated investment management funds	102	101
Total permanent equity	41,585	40,739
Total liabilities, temporary equity and permanent equity	381,508	362,873
Investment Management funds
Securities:
Trading assets	229	243
Assets of consolidated investment management funds, at fair value	245	463
Deposits:
Liabilities of consolidated investment management funds, at fair value	1	2
Operating segments
Assets
Cash and due from banks	4,830	5,864
Interest-bearing deposits with the Federal Reserve and other central banks	95,042	67,988
Interest-bearing deposits with banks ($2,437 and $2,394 is restricted)	14,811	14,148
Federal funds sold and securities purchased under resale agreements	30,182	46,795
Securities:
Held-to-maturity (fair value of $34,805 and $33,302)	34,483	33,982
Available-for-sale	88,550	85,809
Total securities	123,033	119,791
Trading assets	13,571	7,035
Loans	54,953	56,564
Allowance for loan losses	(122)	(146)
Net loans	54,831	56,418
Premises and equipment	3,625	1,832
Accrued interest receivable	624	671
Goodwill	17,386	17,350
Intangible assets	3,107	3,220
Other assets (includes $419 and $742, at fair value)	20,221	21,298
Total assets	381,263	362,410
Deposits:
Noninterest-bearing (principally U.S. offices)	57,630	70,783
Interest-bearing deposits in U.S. offices	101,542	74,904
Interest-bearing deposits in non-U.S. offices	100,294	93,091
Total deposits	259,466	238,778
Federal funds purchased and securities sold under repurchase agreements	11,401	14,243
Trading liabilities	4,841	3,479
Payables to customers and broker-dealers	18,758	19,731
Commercial paper	3,959	1,939
Other borrowed funds	599	3,227
Accrued taxes and other expenses	5,642	5,669
Other liabilities (including allowance for lending-related commitments of $94 and $106, also includes $607 and $88, at fair value)	7,612	5,774
Long-term debt (includes $387 and $371, at fair value)	27,501	29,163
Total liabilities	339,779	322,003
Operating segments \| Investment Management funds
Securities:
Assets of consolidated investment management funds, at fair value	245	463
Deposits:
Liabilities of consolidated investment management funds, at fair value	$ 1	$ 2

Consolidated Balance Sheet (Par

Consolidated Balance Sheet (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Restricted cash	$ 2,000	$ 2,000
Held-to-maturity, fair value	34,805	33,302
Long-term debt, fair value	$ 387	$ 371
Preferred stock, par value (usd per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (shares)	100,000,000	100,000,000
Preferred stock, issued (shares)	35,826	35,826
Common stock, par value (usd per share)	$ 0.01	$ 0.01
Common stock, authorized (shares)	3,500,000,000	3,500,000,000
Common stock, issued (shares)	1,374,443,376	1,364,877,915
Treasury stock, common shares (shares)	473,760,338	404,452,246
Operating segments
Restricted cash	$ 2,437	$ 2,394
Held-to-maturity, fair value	34,805	33,302
Other assets, fair value	419	742
Other liabilities, allowance for lending related commitments	94	106
Other liabilities, fair value	607	88
Long-term debt, fair value	$ 387	$ 371

Consolidated Statement of Cash

Consolidated Statement of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Operating activities
Net income	$ 4,467	$ 4,254	$ 4,114
Net (income) loss attributable to noncontrolling interests	(26)	12	(24)
Net income applicable to shareholders of The Bank of New York Mellon Corporation	4,441	4,266	4,090
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	(25)	(11)	(24)
Pension plan contributions	(45)	(55)	(114)
Depreciation and amortization	1,315	1,339	1,474
Deferred tax (benefit) expense	(69)	(525)	133
Net securities losses (gains)	18	48	(3)
Change in trading assets and liabilities	(5,167)	(574)	(694)
Change in accruals and other, net	(372)	1,508	(195)
Net cash provided by operating activities	96	5,996	4,667
Investing activities
Change in interest-bearing deposits with banks	(970)	(2,011)	2,199
Change in interest-bearing deposits with the Federal Reserve and other central banks	(26,763)	21,954	(29,613)
Purchases of securities held-to-maturity	(8,822)	(5,055)	(8,329)
Paydowns of securities held-to-maturity	5,149	4,346	4,448
Maturities of securities held-to-maturity	3,192	6,317	3,992
Purchases of securities available-for-sale	(46,435)	(32,404)	(26,151)
Sales of securities available-for-sale	11,444	8,247	6,001
Paydowns of securities available-for-sale	7,516	7,716	9,129
Maturities of securities available-for-sale	26,504	9,063	6,319
Net change in loans	1,486	4,620	2,794
Sales of loans and other real estate	147	263	392
Change in federal funds sold and securities purchased under resale agreements	16,615	(18,662)	(2,334)
Net change in seed capital investments	74	59	(124)
Purchases of premises and equipment/capitalized software	(1,210)	(1,108)	(1,197)
Proceeds from the sale of premises and equipment	0	23	0
Proceeds from the sale of an equity method investment	849	0	0
Dispositions, net of cash	0	84	0
Other, net	676	(153)	(231)
Net cash (used for) provided by investing activities	(10,548)	3,299	(32,705)
Financing activities
Change in deposits	20,663	(2,874)	17,069
Change in federal funds purchased and securities sold under repurchase agreements	(2,822)	(920)	5,174
Change in payables to customers and broker-dealers	(981)	(433)	(813)
Change in other borrowed funds	(2,651)	164	1,852
Change in commercial paper	2,020	(1,136)	3,075
Net proceeds from the issuance of long-term debt	2,993	5,143	4,738
Repayments of long-term debt	(5,250)	(3,650)	(1,046)
Proceeds from the exercise of stock options	65	80	431
Issuance of common stock	21	40	34
Treasury stock acquired	(3,327)	(3,269)	(2,686)
Common cash dividends paid	(1,120)	(1,052)	(901)
Preferred cash dividends paid	(169)	(169)	(175)
Other, net	17	(22)	26
Net cash provided by (used for) financing activities	9,459	(8,098)	26,778
Effect of exchange rate changes on cash	2	(72)	189
Change in cash and due from banks and restricted cash
Change in cash and due from banks and restricted cash	(991)	1,125	(1,071)
Cash and due from banks and restricted cash at beginning of year	8,258	7,133	8,204
Cash and due from banks and restricted cash at end of year	7,267	8,258	7,133
Cash and due from banks and restricted cash at end of year	7,267	7,133	7,133
Supplemental disclosures
Interest paid	4,400	2,711	1,033
Income taxes paid	989	983	498
Income taxes refunded	$ 669	$ 175	$ 20

Consolidated Statement of Chang

Consolidated Statement of Changes in Equity - USD ($) $ in Millions	Total	Preferred stock	Common stock	Additional paid-in capital	Retained earnings	Accumulated other comprehensive (loss), net of tax	Treasury stock	Non-redeemable noncontrolling interests of consolidated investment management funds	Redeemable non- controlling interests/ temporary equity
Common stock issued under:
The Bank of New York Mellon Corporation shareholders’ equity			$ 35,269
Beginning balance at Dec. 31, 2016	$ 39,429	$ 3,542	13	$ 25,962	$ 22,621	$ (3,765)	$ (9,562)	$ 618	$ 151
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued to shareholders of noncontrolling interests									56
Redemption of subsidiary shares from noncontrolling interests									70
Other net changes in noncontrolling interests	(370)			(35)				(335)	36
Net income (loss)	4,123				4,090			33
Net income (loss) attributable to redeemable noncontrolling interest	(9)
Other comprehensive (loss) income attributable to The Bank of New York Mellon Corporation shareholders	1,408					1,408
Other comprehensive income (loss)	15								15
Dividends:
Common stock	(901)				(901)
Preferred stock	(175)				(175)
Repurchase of common stock	(2,686)						(2,686)
Common stock issued under:
Employee benefit plans	28			28
Direct stock purchase and dividend reinvestment plan	26			26
Stock awards and options exercised	685		1	684
Ending balance at Dec. 31, 2017	41,567	3,542	14	26,665	25,635	(2,357)	(12,248)	316	179
Common stock issued under:
The Bank of New York Mellon Corporation shareholders’ equity			37,709
Shares issued to shareholders of noncontrolling interests									61
Redemption of subsidiary shares from noncontrolling interests									(92)
Other net changes in noncontrolling interests	(191)			12				(203)	(8)
Net income (loss)	4,254				4,266			(12)
Net income (loss) attributable to redeemable noncontrolling interest	0
Other comprehensive (loss) income attributable to The Bank of New York Mellon Corporation shareholders	(812)					(812)
Other comprehensive income (loss)	(11)								(11)
Common stock	(1,052)				(1,052)
Preferred stock	(169)				(169)
Repurchase of common stock	(3,269)						(3,269)
Employee benefit plans	31			31
Direct stock purchase and dividend reinvestment plan	30			30
Stock awards and options exercised	380			380
Ending balance at Dec. 31, 2018	40,739	3,542	14	27,118	28,652	(3,171)	(15,517)	101	129
Common stock issued under:
The Bank of New York Mellon Corporation shareholders’ equity	40,638		37,096
Shares issued to shareholders of noncontrolling interests									77
Redemption of subsidiary shares from noncontrolling interests									(48)
Other net changes in noncontrolling interests	(19)			6				(25)	(18)
Net income (loss)	4,467				4,441			26
Net income (loss) attributable to redeemable noncontrolling interest	0
Other comprehensive (loss) income attributable to The Bank of New York Mellon Corporation shareholders	623					623
Other comprehensive income (loss)	3								3
Common stock	(1,120)				(1,120)
Preferred stock	(169)				(169)
Repurchase of common stock	(3,327)						(3,327)
Employee benefit plans	28			28
Direct stock purchase and dividend reinvestment plan	11			11
Stock awards and options exercised	352			352
Ending balance at Dec. 31, 2019	41,585	$ 3,542	14	$ 27,515	$ 31,894	$ (2,638)	$ (18,844)	$ 102	$ 143
Common stock issued under:
The Bank of New York Mellon Corporation shareholders’ equity	$ 41,483		$ 37,941

Consolidated Statement of Cha_2

Consolidated Statement of Changes in Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Stockholders' Equity [Abstract]
Dividends on common stock, cash paid (usd per share)	$ 1.18	$ 1.04	$ 0.86

Summary of significant accounti

Summary of significant accounting and reporting policies	12 Months Ended
Summary of significant accounting and reporting policies	Dec. 31, 2019
Accounting Policies [Abstract]
Summary of significant accounting and reporting polices	Summary of significant accounting and reporting policies General In this Annual Report, references to “our,” “we,” “us,” “BNY Mellon,” the “Company” and similar terms refer to The Bank of New York Mellon Corporation and its consolidated subsidiaries. The term “Parent” refers to The Bank of New York Mellon Corporation but not its subsidiaries. Nature of operations BNY Mellon is a global leader in providing a broad range of financial products and services in domestic and international markets. Through our two principal businesses, Investment Services and Investment Management, we serve institutions, corporations and high-net-worth individuals. See Note 24 for the primary products and services of our principal businesses and other information. Basis of presentation The accounting and financial reporting policies of BNY Mellon, a global financial services company, conform to U.S. generally accepted accounting principles (“GAAP”) and prevailing industry practices. In the opinion of management, all adjustments necessary for a fair presentation of financial position, results of operations and cash flows for the periods presented have been made. Certain immaterial reclassifications have been made to prior periods to place them on a basis comparable with current period presentation. Use of estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates based upon assumptions about future economic and market conditions which affect reported amounts and related disclosures in our financial statements. Our most significant estimates pertain to our allowance for loan losses and lending-related commitments, fair value of financial instruments and derivatives, goodwill and other intangibles and litigation and regulatory contingencies. Although our current estimates contemplate current conditions and how we expect them to change in the future, it is reasonably possible that actual conditions could be worse than anticipated in those estimates, which could materially affect our results of operations and financial condition. Foreign currency translation Assets and liabilities denominated in foreign currencies are translated to U.S. dollars at the rate of exchange on the balance sheet date. Transaction gains and losses are included in the income statement. Translation gains and losses on investments in foreign entities with functional currencies that are not the U.S. dollar are recorded as foreign currency translation adjustments in other comprehensive income (“OCI”). Revenue and expense transactions are translated at the applicable daily rate or the weighted average monthly exchange rate when applying the daily rate is not practical. Acquired businesses The income statement and balance sheet include results of acquired businesses accounted for under the acquisition method of accounting pursuant to Accounting Standards Codification (“ASC”) 805, Business Combinations and equity investments from the dates of acquisition. Contingent purchase consideration is measured at its fair value and recorded on the purchase date. Any subsequent changes in the fair value of a contingent consideration liability are recorded through the income statement. Consolidation We evaluate an entity for possible consolidation in accordance with ASC 810, Consolidation . We first determine whether or not we have variable interests in the entity, which are investments or other interests that absorb portions of an entity’s expected losses or receive portions of the entity’s expected returns. Our variable interests may include decision-maker or service provider fees, direct and indirect investments and investments made by related parties, including related parties under common control. If it is determined that we do not have a variable interest in the entity, no further analysis is required and the entity is not consolidated. If we hold a variable interest in the entity, further analysis is performed to determine if the entity is a variable interest entity (“VIE”) or a voting model entity (“VME”). We consider the underlying facts and circumstances of individual entities when assessing whether or not an entity is a VIE. An entity is determined to be a VIE if the equity investors: • do not have sufficient equity at risk for the entity to finance its activities without additional subordinated financial support; or • lack one or more of the following characteristics of a controlling financial interest: • the power, through voting rights or similar rights, to direct the activities of an entity that most significantly impact the entity’s economic performance; • the obligation to absorb the expected losses of the entity; and • the right to receive the expected residual returns of the entity. We reconsider and reassess whether or not we are the primary beneficiary of a VIE when governing documents or contractual arrangements are changed that would reallocate the obligation to absorb expected losses or receive expected residual returns between BNY Mellon and the other investors. This could occur when BNY Mellon disposes of its variable interests in the fund, when additional variable interests are issued to other investors or when we acquire additional variable interests in the VIE. We consolidate a VIE if it is determined that we have a controlling financial interest in the entity. We have a controlling financial interest in a VIE when we have both (1) the power to direct the activities of the VIE that most significantly impact the VIE’s economic performance and (2) the obligation to absorb losses or the right to receive benefits of the VIE that could potentially be significant to that VIE. For entities that do not meet the definition of a VIE, the entity is considered a VME. We consolidate these entities if we can exert control over the financial and operating policies of an investee, which can occur if we have a 50% or more voting interest in the entity. See Note 14 for additional disclosures related to our variable interests. Equity method investments, including renewable energy investments Equity investments of less than a majority but at least 20% ownership are accounted for by the equity method and included in other assets. Earnings on these investments are reflected as investment services fees, investment management and performance fees or investment and other income, as appropriate, in the period earned. A loss in value of an equity investment that is determined to be other-than-temporary is recognized by reducing the carrying value of the equity investment to its fair value. Renewable energy investment projects through limited liability companies are accounted for using the equity method of accounting. The hypothetical liquidation at book value (“HLBV”) methodology is used to determine the pre-tax loss that is recognized in each period. HLBV estimates the liquidation value at the beginning and end of each period, with the difference recognized as the amount of loss under the equity method. The pre-tax losses are reported in investment and other income on the income statement. The corresponding tax benefits and credits are recorded as a reduction to provision for income taxes on the income statement. The pre-tax losses, tax benefits and credits are included in our projected annual effective tax rate. See Note 8 for the amount of our renewable energy investments. Below are our most significant equity method investments, other than the investments in renewable energy. Equity method investments at Dec. 31, 2019 (dollars in millions) Percentage ownership Book value CIBC Mellon Global Securities Services Company (“CIBC Mellon”) 50.0 % $ 626 Siguler Guff 20.0 % $ 233 Restricted cash and securities Cash and securities may be segregated under federal and other regulatory requirements and consists of excess client funds held by our broker-dealer entities. Restricted cash is included in interest-bearing deposits with banks on the balance sheet and with cash and due from banks when reconciling the beginning and end-of-period balances on the consolidated statement of cash flows. Securities purchased under resale agreements and securities sold under repurchase agreements Securities purchased under resale agreements and securities sold under repurchase agreements are accounted for as collateralized financings. Generally, these agreements are recorded at the amounts at which the securities will be subsequently resold or repurchased, plus accrued interest. Securities purchased under resale agreements are fully collateralized with high-quality liquid securities. Collateral requirements are monitored and additional collateral is received or provided, as required. As such, these transactions carry minimal credit risk and are not allocated an allowance for credit losses. Where an enforceable netting agreement exists, resale and repurchase agreements executed with the same counterparty and the same maturity date are reported on a net basis on the balance sheet. Securities – Debt Debt securities are classified as available-for-sale, held-to-maturity or trading securities when they are purchased. Debt securities are classified as available-for-sale securities when we intend to hold the securities for an indefinite period of time or when the securities may be used for tactical asset/liability purposes and may be sold from time to time to effectively manage interest rate exposure, prepayment risk and liquidity needs. Debt securities are classified as held-to-maturity securities when we intend and have the ability to hold them until maturity. Debt securities are classified as trading securities when our intention is to resell the securities. Available-for-sale securities are measured at fair value. The difference between fair value and amortized cost representing unrealized gains or losses on assets classified as available-for-sale, are recorded net of tax as an addition to or deduction from OCI, unless a security is deemed to have other-than-temporary impairment (“OTTI”). Realized gains and losses on sales of available-for-sale securities are reported on the income statement. The cost of debt securities sold is determined on a specific identification method. Held-to-maturity securities are measured at amortized cost. Trading securities are measured at fair value and included in trading assets on the balance sheet. Trading revenue includes both realized and unrealized gains and losses. The liability incurred on short-sale transactions, representing the obligation to deliver securities, is included in trading liabilities at fair value. Income on securities purchased is adjusted for amortization of premium and accretion of discount on a level yield basis, generally over their contractual life. We routinely conduct periodic reviews to identify and evaluate each security not measured at fair value through earnings to determine whether OTTI has occurred. We examine various factors when determining whether an impairment, representing the fair value of a security being below its amortized cost, is other-than-temporary. The following are examples of factors that we consider: • The length of time and the extent to which the fair value has been less than the amortized cost basis; • Whether management has an intent to sell the security; • Whether the decline in fair value is attributable to specific conditions, such as conditions in an industry or in a geographic area, affecting a particular investment; • Whether a debt security has been downgraded by a rating agency; • Whether a debt security exhibits cash flow deterioration; and • For each non-agency residential mortgage-backed security (“RMBS”), we compare the remaining credit enhancement that protects the individual security from losses against the projected losses of principal and/or interest expected to come from the underlying mortgage collateral, to determine whether such credit losses might directly impact the relevant security. When we do not intend to sell the security and it is more likely than not that we will not be required to sell the security prior to recovery of its cost basis, the credit component of an OTTI of a debt security is recognized in earnings and the non-credit component is recognized in OCI. For held-to-maturity debt securities, the amount of OTTI recorded in OCI for the non-credit portion of a previous OTTI is amortized prospectively, as an increase to the carrying amount of the security, over the remaining life of the security on the basis of the timing of future estimated cash flows of the securities. The determination of whether a credit loss exists is based on the best estimate of the present value of cash flows to be collected from the debt security. Generally, cash flows are discounted at the effective interest rate implicit in the debt security at the time of acquisition. For debt securities that are beneficial interests in securitized financial assets and are not high credit quality, ASC 325, Investments - Other, provides that cash flows be discounted at the current yield used to accrete the beneficial interest. If we intend to sell the security or it is more likely than not that we will be required to sell the security prior to recovery of its cost basis, the credit and non-credit components of OTTI are recognized in earnings and subsequently accreted to interest income on an effective yield basis over the life of the security. The accounting policy for the determination of the fair value of financial instruments has been identified as a “critical accounting estimate” as it requires us to make numerous assumptions based on available market data. See Note 4 for these disclosures. Securities – Equity Investments in equity securities that do not result in consolidation and are not accounted for under the equity method are measured at fair value with changes in the fair value recognized through earnings, unless one of two available exceptions applies. The first exception, a scope exception, allows Federal Reserve Bank stock, Federal Home Loan Bank stock and exchange memberships to remain accounted for at cost, less impairment. The second practicability exception is an election available for equity investments that do not have readily determinable fair values. For certain investments where the Company has chosen the practicability exception, such investments are accounted for in other assets on the balance sheet at cost adjusted for impairment, if any, plus or minus observable price changes in orderly transactions for an identical or similar investment of the same issuer with any such changes reflected in investment and other income. Equity securities with readily determinable fair values are classified in trading assets with changes in fair value reflected in foreign exchange and other trading revenue. Loans Loans are reported at amortized cost, net of any unearned income and deferred fees and costs. Certain loan origination and upfront commitment fees, as well as certain direct loan origination and commitment costs, are deferred and amortized as a yield adjustment over the lives of the related loans. Loans held for sale are carried at the lower of cost or fair value. A modified loan is considered a troubled debt restructuring (“TDR”) if the debtor is experiencing financial difficulties and the creditor grants a concession to the debtor that would not otherwise be considered. A TDR may include a transfer of real estate or other assets from the debtor to the creditor, or a modification of the term of the loan. TDRs are accounted for as impaired loans (see the Nonperforming assets policy). Nonperforming assets Commercial loans are placed on nonaccrual status when principal or interest is past due 90 days or more, or when there is reasonable doubt that interest or principal will be collected. When a first or second lien residential mortgage loan reaches 90 days delinquent, it is subject to an impairment test and placed on nonaccrual status. When a loan is placed on nonaccrual status, previously accrued and uncollected interest is reversed against current period interest revenue. Interest receipts on nonaccrual and impaired loans are recognized as interest revenue or are applied to principal when we believe the ultimate collectability of principal is in doubt. Nonaccrual loans generally are restored to an accrual basis when principal and interest become current and remain current for a specified period. A loan is considered to be impaired when it is probable that we will be unable to collect all principal and interest amounts due according to the contractual terms of the loan agreement. An impairment allowance is measured based upon the loan’s market value, the present value of expected future cash flows, discounted at the loan’s initial effective interest rate, or at fair value of the collateral if the loan is collateral dependent. If the loan valuation is less than the recorded value of the loan, an impairment allowance is established by a provision for credit loss or a write-down is taken. Impairment allowances are not needed when the recorded investment in an impaired loan is less than the loan valuation. Allowance for loan losses and allowance for lending-related commitments The allowance for loan losses, presented as a valuation allowance to loans, and the allowance for lending-related commitments recorded in other liabilities, are referred to as BNY Mellon’s allowance for credit losses. The accounting policy for determining the allowances has been identified as a “critical accounting estimate” as it requires us to make numerous complex and subjective estimates and assumptions relating to amounts which are inherently uncertain. The allowance for loan losses is maintained to absorb losses inherent in the loan portfolio as of the balance sheet date based on our judgment. The allowance determination methodology is designed to provide procedural discipline in assessing the appropriateness of the allowance. Credit losses are charged against the allowance. Recoveries are added to the allowance. The methodology for determining the allowance for lending-related commitments considers the same factors as the allowance for loan losses, as well as an estimate of the probability of drawdown at default. We utilize a quantitative methodology and qualitative framework for determining the allowance for loan losses and the allowance for lending-related commitments. Within this qualitative framework, management applies judgment when assessing internal risk factors and environmental factors to compute an additional allowance for each component of the loan portfolio. The components of the allowance for loan losses and the allowance for lending-related commitments are inclusive of the qualitative allowance framework and consist of the following three elements: • an allowance for impaired credits of $1 million or greater; • an allowance for higher risk-rated credits and pass-rated credits; and • an allowance for residential mortgage loans. Our lending is primarily to institutional customers. As a result, our loans are generally larger than $1 million . Therefore, the first element, impaired credits, is based on individual analysis of all impaired loans of $1 million and greater. The allowance is measured by the difference between the recorded value of impaired loans and their impaired value. Impaired value is either the present value of the expected future cash flows from the borrower, the market value of the loan, or the fair value of the collateral, if the loan is collateral dependent. The second element, higher risk-rated credits and pass-rated credits, is based on our incurred loss model. Individual credit analyses are performed on such loans before being assigned a credit rating. All borrowers are collectively evaluated based on their credit rating. The loss inherent in each loan incorporates the borrower’s credit rating, facility rating and maturity. The loss given default, derived from the facility rating, incorporates a recovery expectation and an estimate of the use of the facility at default (usage given default). The borrower’s probability of default is derived from the associated credit rating. Borrower ratings are reviewed at least annually and are periodically mapped to third-party databases, including rating agency and default and recovery databases, to ensure ongoing consistency and validity. Higher risk-rated credits are reviewed quarterly. The third element, the allowance for residential mortgage loans, is determined by segregating mortgage pools into delinquency periods ranging from current through foreclosure. Each of these delinquency periods is assigned a probability of default. A specific loss given default is assigned for each mortgage pool. We assign all residential mortgage pools, except home equity lines of credit, a probability of default and loss given default based on default and loss data derived from internal historical data related to our residential mortgage portfolio. The resulting incurred loss factor (the probability of default multiplied by the loss given default) is applied against the loan balance to determine the allowance held for each pool. This approach is applied to the other residential mortgage portfolio (a relatively small sub-segment of our mortgage loans). The allowance for wealth management loans and mortgages originated by our Wealth Management business (the majority of mortgage loans held) is assessed using the second element described above. For home equity lines of credit, probability of default and loss given default are based on external data from third-party databases due to the small size of the portfolio and insufficient internal data. The qualitative framework is used to determine an additional allowance for each portfolio based on the factors below: Internal risk factors: • Ratio of nonperforming loans to total non-margin loans; • Ratio of criticized assets to total loans and lending-related commitments; • Borrower concentration; and • Significant concentrations in high risk industries and countries. Environmental risk factors: • U.S. non-investment grade default rate; • Unemployment rate; and • Change in real gross domestic product. The objective of the qualitative framework is to capture incurred losses that may not have been fully captured in the quantitative reserve, which is based primarily on historical data. Management determines the qualitative allowance for each period based on judgment informed by consideration of internal and external risk factors and other considerations that may be deemed relevant during the period. Once determined in the aggregate, our qualitative allowance is then allocated to each of our loan classes based on the respective classes’ quantitative allowance balances with the allocations adjusted, when necessary, for class specific risk factors. For each risk factor, we calculate the minimum and maximum values, and percentiles in-between, to evaluate the distribution of our historical experience. The distribution of historical experience is compared to the risk factor’s current quarter observed experience to assess the current risk inherent in the portfolio and overall direction/trend of a risk factor relative to our historical experience. Based on this analysis, we assign a risk level–no impact, low, moderate, high and elevated–to each risk factor for the current quarter. Management assesses the impact of each risk factor to determine an aggregate risk level. We do not quantify the impact of any particular risk factor. Management’s assessment of the risk factors, as well as the trend in the quantitative allowance, supports management’s judgment for the overall required qualitative allowance. A smaller qualitative allowance may be required when our quantitative allowance has reflected incurred losses associated with the aggregate risk level. A greater qualitative allowance may be required if our quantitative allowance does not yet reflect the incurred losses associated with the aggregate risk level. The allocation of the allowance for credit losses is inherently judgmental, and the entire allowance for credit losses is available to absorb credit losses regardless of the nature of the loss. Premises and equipment Premises and equipment are carried at cost less accumulated depreciation and amortization. Depreciation and amortization is computed using the straight-line method over the estimated useful life of the owned asset and, for leasehold improvements, over the lesser of the remaining term of the leased facility or the estimated economic life of the improvement. For owned and capitalized assets, estimated useful lives range from 2 to 40 years . Maintenance and repairs are charged to expense as incurred, while major improvements are capitalized and amortized to operating expense over their identified useful lives. Leasing We determine if an arrangement is a lease at inception. Right-of-use (“ROU”) assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments. The ROU assets and lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. For all leases, we use a discount rate that represents a collateralized incremental borrowing rate based on similar terms and information available at commencement date of the lease in determining the present value of lease payments. In addition to the lease payments, the determination of an ROU asset may also include certain adjustments related to lease incentives and initial direct costs incurred. Options to extend or terminate a lease are included in the determination of the ROU asset and lease liability only when it is reasonably certain that we will exercise that option. Lease expense for operating leases is recognized on a straight-line basis over the lease term, while the lease expense for finance leases is recognized using the effective interest method. ROU assets are reviewed for impairment when events or circumstances indicate that the carrying amount may not be recoverable. For operating leases, if deemed impaired, the ROU asset is written down and the remaining balance is subsequently amortized on a straight-line basis which results in lease expense recognition that is similar to finance leases. For all leases, we have elected to account for the contractual lease and non-lease components as a single lease component and include them in the calculation of the lease liability. The non-lease variable components, such as maintenance expense and other variable costs including non-index or rate escalations, have been excluded from the calculation. Additionally, for certain equipment leases, we apply a portfolio approach to account for the operating lease ROU assets and liabilities. For subleasing activities, the rental income is reported as part of net occupancy expense, as this activity is not a significant business activity and is part of the Company’s customary business practice. For direct finance leases, unearned revenue is accreted over the lives of the leases in decreasing amounts to provide a constant rate of return on the net investment in the leases. We have leveraged lease transactions that were entered into prior to Dec. 31, 2018. These leases are grandfathered under ASC 842, Leases, which became effective Jan. 1, 2019, and will continue to be accounted for under the prior guidance unless the leases are subsequently modified. Revenue on leveraged leases is recognized on a basis to achieve a constant yield on the outstanding investment in the lease, net of the related deferred tax liability, in the years in which the net investment is positive. Gains and losses on residual values of leased equipment sold are included in investment and other income. Impairment of leveraged lease residual values that is deemed other-than-temporary is reflected in net interest revenue. Considering the nature of these leases and the number of significant assumptions, there is risk associated with the income recognition on these leases should any of the assumptions change materially in future periods. Software We capitalize costs relating to acquired software and internal-use software development projects that provide new or significantly improved functionality. We capitalize projects that are expected to result in longer-term operational benefits, such as replacement systems or new applications that result in significantly increased operational efficiencies or functionality. All other costs incurred in connection with an internal-use software project are expensed as incurred. Capitalized software is recorded in other assets on the balance sheet. We record amortization of capitalized software in software and equipment expense on the income statement. Identified intangible assets and goodwill Identified intangible assets with estimable lives are amortized in a pattern consistent with the assets’ identifiable cash flows or using a straight-line method over their remaining estimated benefit periods if the pattern of cash flows is not estimable. Intangible assets with estimable lives are reviewed for possible impairment when events or changed circumstances may affect the underlying basis of the asset. Goodwill and intangibles with indefinite lives are not amortized, but are assessed annually for impairment, or more often if events and circumstances indicate it is more likely than not they may be impaired and to determine if the lives are no longer indefinite and should be amortized. The amount of goodwill impairment is determined by the excess of the carrying value of the reporting unit over its fair value. The accounting policy for valuing and impairment testing of identified intangible assets and goodwill has been identified as a “critical accounting estimate” as it requires us to make numerous complex and subjective estimates. See Note 7 for additional disclosures related to goodwill and intangible assets. Investments in qualified affordable housing projects Investments in qualified affordable housing projects through a limited liability entity are accounted for utilizing the proportional amortization method. Under the proportional amortization method, the initial cost of the investment is amortized to the provision for income taxes in proportion to the tax credits and other tax benefits received. The net investment performance, including tax credits and other benefits received, is recognized in the income statement as a component of the provision for income taxes. Additionally, the value of the commitments to fund qualified affordable housing projects is included in other assets on the balance sheet and a liability is recorded for the unfunded portion. Seed capital Seed capital investments are generally classified as other assets and carried at fair value. Unrealized gains and losses on seed capital investments are recorded in investment and other income. Certain risk retention investments in our collateralized loan obligations (“CLOs”) are classified as available-for-sale securities. Noncontrolling interests Noncontrolling interests included in permanent equity are adjusted for the income or loss attributable to the noncontrolling interest holders and any distributions to those shareholders. Redeemable noncontrolling interests are reported as temporary equity. We recognize changes in the redemption value of the redeemable noncontrolling interests as they occur and adjust the carrying value to be equal to the redemption value. Fee revenue Investment Services and Investment Management revenue is based on terms specified in a contract with a customer, and excludes any amounts collected on behalf of third parties. Revenue is recognized when, or as, a performance obligation is satisfied by transferring control of a good or service to a customer. A performance obligation may be satisfied over time or at a point in time. Revenue from a performance obligation satisfied over time is recognized by measuring our progress in satisfying the performance obligation in a manner that reflects the transfer of goods and services to the customer. Revenue from a performance obligation satisfied at a point in time is recognized at the point in time the customer obtains control of the promised good or service. The amount of revenue recognized reflects the consideration we expect to be entitled to in exchange for the promised goods and services. Taxes assessed by a governmental authority, that are both imposed on, and concurrent with, a specific revenue-producing transaction, are collected from a customer and are excluded from revenue. Performance f

Accounting changes and new acco

Accounting changes and new accounting guidance	12 Months Ended
Accounting changes and new accounting guidance	Dec. 31, 2019
Accounting Changes and Error Corrections [Abstract]
Accounting changes and new accounting guidance	Accounting changes and new accounting guidance The following accounting changes and new accounting guidance were adopted in 2019. ASU 2016-02, Leases In February 2016, the Financial Accounting Standards Board (“FASB”) issued an ASU, Leases . The primary objective of this ASU is to increase transparency and comparability by recognizing lease assets and liabilities on the balance sheet and expand related disclosures. This ASU requires a “right-of-use” asset and a payment obligation liability on the balance sheet for most leases and subleases. Additionally, depending on the lease classification under the standard, it may result in different expense recognition patterns and classification than under existing accounting principles. For leases classified as finance leases, it will result in higher expense recognition in the earlier periods and lower expense in the later periods of the lease. The Company adopted this guidance on Jan. 1, 2019 using the alternative transition method on a prospective basis (and elected to utilize the basket of practical expedients available at implementation) and recognized right-of-use assets of $1.3 billion and lease liabilities of $1.5 billion on the consolidated balance sheet, both based on the present value of the expected remaining lease payments. See Note 6 for the disclosures required by this ASU. ASU 2018-02, Income Statement—Reporting Comprehensive Income: Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income In February 2018, the FASB issued an ASU, Income Statement—Reporting Comprehensive Income: Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. This ASU permits a reclassification from accumulated other comprehensive income to retained earnings for the tax effects of items within accumulated other comprehensive income that do not reflect the lower statutory tax rate which was enacted by the 2017 U.S. tax legislation. BNY Mellon adopted this guidance in the first quarter of 2019, which resulted in a $90 million

Acquisitions and dispositions

Acquisitions and dispositions	12 Months Ended
Acquisitions and dispositions	Dec. 31, 2019
Business Combinations [Abstract]
Acquisitions and dispositions	Acquisitions and dispositions We sometimes structure our acquisitions with both an initial payment and later contingent payments tied to post-closing revenue or income growth. Contingent payments totaled $6 million in 2019 . A t Dec. 31, 2019 , we are potentially obligated to pay additional consideration which, using reasonable assumptions, could range from $5 million to $13 million over the next two years , but could be higher as certain of the arrangements do not contain a contractual maximum. Transaction in 2019 On Nov. 8, 2019, BNY Mellon, along with the other holders of Promontory Interfinancial Network, LLC (“PIN”), completed the sale of their interests in PIN. BNY Mellon recorded an after-tax gain of $622 million on the sale of this equity investment. Transactions in 2018 On Jan. 2, 2018, BNY Mellon completed the sale of CenterSquare Investment Management (“CenterSquare”), one of our Investment Management investment firms, and recorded a gain on this transaction. CenterSquare had approximately $10 billion in assets under management (“AUM”) in U.S. and global real estate and infrastructure investments. In addition, goodwill of $52 million was removed from the consolidated balance sheet as a result of this sale. On June 29, 2018, BNY Mellon completed the exchange of its majority equity interest in Amherst Capital Management LLC for a minority equity stake in Amherst Holdings LLC. Goodwill of $13 million was removed from the consolidated balance sheet and a gain was recorded as a result of this sale.

Securities

Securities	12 Months Ended
Securities	Dec. 31, 2019
Securities [Abstract]
Securities	Securities The following tables present the amortized cost, the gross unrealized gains and losses and the fair value of securities at Dec. 31, 2019 , Dec. 31, 2018 and Dec. 31, 2017, respectively. Securities at Dec. 31, 2019 Gross unrealized Amortized cost Fair value (in millions) Gains Losses Available-for-sale: Agency RMBS $ 27,022 $ 164 $ 143 $ 27,043 U.S. Treasury 14,979 472 20 15,431 Sovereign debt/sovereign guaranteed 12,548 109 11 12,646 Agency commercial mortgage-backed securities (“MBS”) 9,231 203 17 9,417 Foreign covered bonds 4,189 15 7 4,197 CLOs 4,078 1 16 4,063 Supranational 3,697 18 6 3,709 Foreign government agencies 2,638 7 2 2,643 Non-agency commercial MBS 2,134 46 2 2,178 Other asset-backed securities (“ABS”) 2,141 7 5 2,143 U.S. government agencies 1,890 61 2 1,949 Non-agency RMBS (a) 1,038 202 7 1,233 State and political subdivisions 1,017 27 — 1,044 Corporate bonds 832 21 — 853 Other debt securities 1 — — 1 Total securities available-for-sale (b) $ 87,435 $ 1,353 $ 238 $ 88,550 Held-to-maturity: Agency RMBS $ 27,357 $ 292 $ 46 $ 27,603 U.S. Treasury 3,818 28 3 3,843 Agency commercial MBS 1,326 21 3 1,344 U.S. government agencies 1,023 1 2 1,022 Sovereign debt/sovereign guaranteed 756 31 — 787 Non-agency RMBS 80 4 1 83 Foreign covered bonds 79 — — 79 Supranational 27 — — 27 State and political subdivisions 17 — — 17 Total securities held-to-maturity $ 34,483 $ 377 $ 55 $ 34,805 Total securities $ 121,918 $ 1,730 $ 293 $ 123,355 (a) Includes $640 million that was included in the former Grantor Trust. (b) Includes gross unrealized gains of $32 million and gross unrealized losses of $65 million recorded in accumulated other comprehensive income related to securities that were transferred from available-for-sale to held-to-maturity. The unrealized gains and losses are primarily related to Agency RMBS and will be amortized into net interest revenue over the contractual lives of the securities. Securities at Dec. 31, 2018 Gross unrealized Amortized cost Fair value (in millions) Gains Losses Available-for-sale: Agency RMBS $ 25,594 $ 83 $ 369 $ 25,308 U.S. Treasury 20,190 96 210 20,076 Sovereign debt/sovereign guaranteed 10,663 108 21 10,750 Agency commercial MBS 9,836 16 161 9,691 CLOs 3,410 — 46 3,364 Supranational 2,985 7 8 2,984 Foreign covered bonds 2,890 7 19 2,878 State and political subdivisions 2,251 18 22 2,247 Other ABS 1,776 1 4 1,773 U.S. government agencies 1,676 5 24 1,657 Non-agency commercial MBS 1,491 1 28 1,464 Non-agency RMBS (a) 1,095 241 11 1,325 Foreign government agencies 1,164 1 4 1,161 Corporate bonds 1,074 6 26 1,054 Other debt securities 72 5 — 77 Total securities available-for-sale (b) $ 86,167 $ 595 $ 953 $ 85,809 Held-to-maturity: Agency RMBS $ 25,507 $ 32 $ 632 $ 24,907 U.S. Treasury 4,727 3 77 4,653 U.S. government agencies 1,497 — 10 1,487 Agency commercial MBS 1,195 — 26 1,169 Sovereign debt/sovereign guaranteed 833 26 — 859 Non-agency RMBS 100 4 2 102 Foreign covered bonds 80 1 — 81 Supranational 26 1 — 27 State and political subdivisions 17 — — 17 Total securities held-to-maturity $ 33,982 $ 67 $ 747 $ 33,302 Total securities $ 120,149 $ 662 $ 1,700 $ 119,111 (a) Includes $832 million that was included in the former Grantor Trust. (b) Includes gross unrealized gains of $39 million and gross unrealized losses of $87 million recorded in accumulated other comprehensive income related to securities that were transferred from available-for-sale to held-to-maturity. The unrealized gains and losses are primarily related to Agency RMBS and will be amortized into net interest revenue over the contractual lives of the securities. The following table presents the realized gains, losses and impairments, on a gross basis. Net securities (losses) gains (in millions) 2019 2018 2017 Realized gross gains $ 23 $ 8 $ 47 Realized gross losses (39 ) (55 ) (40 ) Recognized gross impairments (2 ) (1 ) (4 ) Total net securities (losses) gains $ (18 ) $ (48 ) $ 3 In 2018, we adopted the new accounting guidance included in ASU 2016-01, Financial Instruments—Overall: Recognition and Measurement of Financial Assets and Financial Liabilities . As a result, money market fund investments were reclassified to trading assets, primarily from available-for-sale securities. In 2018, certain debt securities with an aggregate amortized cost of $1,117 million and fair value of $1,070 million were transferred from held-to-maturity securities to available-for-sale securities as part of the adoption of ASU 2017-12, Derivatives and Hedging: Targeted Improvements to Accounting for Hedging Activities . The following table presents pre-tax net securities (losses) gains by type. Net securities (losses) gains (in millions) 2019 2018 2017 U.S. Treasury $ (13 ) $ (4 ) $ (16 ) Agency RMBS 1 (42 ) (12 ) Other (6 ) (2 ) 31 Total net securities (losses) gains $ (18 ) $ (48 ) $ 3 Temporarily impaired securities At Dec. 31, 2019 , the gross unrealized losses on the securities portfolio were primarily attributable to an increase in interest rates from the date of purchase, and for certain securities that were transferred from available-for-sale to held-to-maturity, an increase in interest rates through the date they were transferred. Specifically, $65 million of the unrealized losses at Dec. 31, 2019 and $87 million at Dec. 31, 2018 reflected in the available-for-sale sections of the tables below relate to certain securities (primarily Agency RMBS) that were transferred in prior periods from available-for-sale to held-to-maturity. The unrealized losses will be amortized into net interest revenue over the contractual lives of the securities. The transfer created a new cost basis for the securities. As a result, if these securities have experienced unrealized losses since the date of transfer, the corresponding fair value and unrealized losses would be reflected in the held-to-maturity sections of the following tables. We do not intend to sell these securities, and it is not more likely than not that we will have to sell these securities. The following tables show the aggregate fair value of securities with a continuous unrealized loss position for less than 12 months and those that have been in a continuous unrealized loss position for 12 months or more. Temporarily impaired securities at Dec. 31, 2019 Less than 12 months 12 months or more Total Fair value Unrealized losses Fair value Unrealized losses Fair value Unrealized losses (in millions) Available-for-sale: Agency RMBS $ 8,373 $ 33 $ 5,912 $ 110 $ 14,285 $ 143 U.S. Treasury 1,976 16 766 4 2,742 20 Sovereign debt/sovereign guaranteed 4,045 10 225 1 4,270 11 Agency commercial MBS 1,960 12 775 5 2,735 17 Foreign covered bonds 1,009 4 690 3 1,699 7 CLOs 1,066 2 1,499 14 2,565 16 Supranational 1,336 6 360 — 1,696 6 Foreign government agencies 1,706 2 47 — 1,753 2 Non-agency commercial MBS 525 2 45 — 570 2 Other ABS 456 3 305 2 761 5 U.S. government agencies 377 2 — — 377 2 Non-agency RMBS (a) 101 — 113 7 214 7 State and political subdivisions — — 16 — 16 — Corporate bonds 82 — 21 — 103 — Total securities available-for-sale (b) $ 23,012 $ 92 $ 10,774 $ 146 $ 33,786 $ 238 Held-to-maturity: Agency RMBS $ 4,714 $ 17 $ 3,729 $ 29 $ 8,443 $ 46 U.S. Treasury 406 3 821 — 1,227 3 Agency commercial MBS 375 3 — — 375 3 U.S. government agencies 506 2 45 — 551 2 Non-agency RMBS 6 — 40 1 46 1 Total securities held-to-maturity $ 6,007 $ 25 $ 4,635 $ 30 $ 10,642 $ 55 Total temporarily impaired securities $ 29,019 $ 117 $ 15,409 $ 176 $ 44,428 $ 293 (a) Includes $2 million of securities with an unrealized loss of less than $1 million for less than 12 months and $2 million of securities with an unrealized loss of less than $1 million for 12 months or more that were included in the former Grantor Trust. (b) Includes gross unrealized losses of $65 million for 12 months or more recorded in accumulated other comprehensive income related to securities that were transferred from available-for-sale to held-to-maturity. The unrealized losses are primarily related to Agency RMBS and will be amortized into net interest revenue over the contractual lives of the securities. There were no gross unrealized losses for less than 12 months. Temporarily impaired securities at Dec. 31, 2018 Less than 12 months 12 months or more Total (in millions) Fair value Unrealized losses Fair value Unrealized losses Fair value Unrealized losses Available-for-sale: Agency RMBS $ 6,678 $ 30 $ 9,250 $ 339 $ 15,928 $ 369 U.S. Treasury 6,126 23 6,880 187 13,006 210 Sovereign debt/sovereign guaranteed 2,185 8 988 13 3,173 21 Agency commercial MBS 4,505 50 3,082 111 7,587 161 CLOs 3,280 46 2 — 3,282 46 Supranational 974 2 481 6 1,455 8 Foreign covered bonds 1,058 7 736 12 1,794 19 State and political subdivisions 316 1 668 21 984 22 Other ABS 1,289 4 23 — 1,312 4 U.S. government agencies 513 4 673 20 1,186 24 Non-agency commercial MBS 1,015 14 362 14 1,377 28 Non-agency RMBS (a) 94 1 157 10 251 11 Foreign government agencies 397 1 256 3 653 4 Corporate bonds 685 24 50 2 735 26 Total securities available-for-sale (b) $ 29,115 $ 215 $ 23,608 $ 738 $ 52,723 $ 953 Held-to-maturity: Agency RMBS $ 4,602 $ 56 $ 17,107 $ 576 $ 21,709 $ 632 U.S. Treasury 157 2 4,343 75 4,500 77 U.S. government agencies — — 1,111 10 1,111 10 Agency commercial MBS 477 7 654 19 1,131 26 Non-agency RMBS 22 1 31 1 53 2 Total securities held-to-maturity $ 5,258 $ 66 $ 23,246 $ 681 $ 28,504 $ 747 Total temporarily impaired securities $ 34,373 $ 281 $ 46,854 $ 1,419 $ 81,227 $ 1,700 (a) Includes $22 million of securities with an unrealized loss of less than $1 million for less than 12 months and $3 million of securities with an unrealized loss of less than $1 million for 12 months or more that were included in the former Grantor Trust. (b) Includes gross unrealized losses of $87 million for 12 months or more recorded in accumulated other comprehensive income related to securities that were transferred from available-for-sale to held-to-maturity. The unrealized losses are primarily related to Agency RMBS and will be amortized into net interest revenue over the contractual lives of the securities. There were no gross unrealized losses for less than 12 months. The following table shows the maturity distribution by carrying amount and yield (on a tax equivalent basis) of our securities portfolio. Maturity distribution and yields on securities at Dec. 31, 2019 U.S. Treasury U.S. government agencies State and political subdivisions Other bonds, notes and debentures Mortgage/ asset-backed (dollars in millions) Amount Yield (a) Amount Yield (a) Amount Yield (a) Amount Yield (a) Amount Yield (a) Total Securities available-for-sale: One year or less $ 2,104 2.51 % $ 25 2.73 % $ 162 2.90 % $ 8,241 1.19 % $ — — % $ 10,532 Over 1 through 5 years 6,876 1.70 411 2.07 774 3.26 13,909 0.99 — — 21,970 Over 5 through 10 years 3,693 2.21 1,513 2.70 94 2.57 1,705 0.87 — — 7,005 Over 10 years 2,758 3.11 — — 14 2.50 194 1.67 — — 2,966 Mortgage-backed securities — — — — — — — — 39,871 2.87 39,871 Asset-backed securities — — — — — — — — 6,206 2.90 6,206 Total $ 15,431 2.18 % $ 1,949 2.56 % $ 1,044 3.13 % $ 24,049 1.06 % $ 46,077 2.87 % $ 88,550 Securities held-to-maturity: One year or less $ 881 1.44 % $ 135 1.69 % $ — — % $ 138 0.78 % $ — — % $ 1,154 Over 1 through 5 years 2,937 1.98 688 2.04 3 5.68 610 0.77 — — 4,238 Over 5 through 10 years — — 200 2.58 — — 114 0.22 — — 314 Over 10 years — — — — 14 4.76 — — — — 14 Mortgage-backed securities — — — — — — — — 28,763 2.94 28,763 Total $ 3,818 1.86 % $ 1,023 2.10 % $ 17 4.94 % $ 862 0.70 % $ 28,763 2.94 % $ 34,483 (a) Yields are based upon the amortized cost of securities. Other-than-temporary impairment For each security in the securities portfolio, a quarterly review is conducted to determine if an OTTI has occurred. See Note 1 for a discussion of the determination of OTTI. The following table reflects securities credit losses recorded in earnings. The beginning balance represents the credit loss component for which OTTI occurred on debt securities in prior periods. The additions represent the first time a debt security was credit impaired or when subsequent credit impairments have occurred. The deductions represent credit losses on securities that have been sold, are required to be sold, or for which it is our intention to sell. Debt securities credit loss roll forward (in millions) 2019 2018 Beginning balance as of Dec. 31 $ 78 $ 84 Add: Initial OTTI credit losses — — Subsequent OTTI credit losses 1 1 Less: Realized losses for securities sold 7 7 Ending balance as of Dec. 31 $ 72 $ 78 Pledged assets At Dec. 31, 2019 , BNY Mellon had pledged assets of $118 billion , including $80 billion pledged as collateral for potential borrowings at the Federal Reserve Discount Window and $6 billion pledged as collateral for borrowing at the Federal Home Loan Bank. The components of the assets pledged at Dec. 31, 2019 included $98 billion of securities, $13 billion of loans, $7 billion of trading assets and less than $1 billion of interest-bearing deposits with banks. If there has been no borrowing at the Federal Reserve Discount Window, the Federal Reserve generally allows banks to freely move assets in and out of their pledged assets account to sell or repledge the assets for other purposes. BNY Mellon regularly moves assets in and out of its pledged assets account at the Federal Reserve. At Dec. 31, 2018 , BNY Mellon had pledged assets of $120 billion , including $96 billion pledged as collateral for potential borrowing at the Federal Reserve Discount Window and $7 billion pledged as collateral for borrowing at the Federal Home Loan Bank. The components of the assets pledged at Dec. 31, 2018 included $100 billion of securities, $15 billion of loans, $4 billion of trading assets and $1 billion of interest-bearing deposits with banks. At Dec. 31, 2019 and Dec. 31, 2018 , pledged assets included $29 billion and $13 billion , respectively, for which the recipients were permitted to sell or repledge the assets delivered. We also obtain securities as collateral, including receipts under resale agreements, securities borrowed, derivative contracts and custody agreements on terms which permit us to sell or repledge the securities to others. At Dec. 31, 2019 and Dec. 31, 2018 , the market value of the securities received that can be sold or repledged was $153 billion and $151 billion , respectively. We routinely sell or repledge these securities through delivery to third parties. As of Dec. 31, 2019 and Dec. 31, 2018 , the market value of securities collateral sold or repledged was $107 billion and $101 billion , respectively. Restricted cash and securities Cash and securities may be segregated under federal and other regulations or requirements. At both Dec. 31, 2019 and Dec. 31, 2018 , cash segregated under federal and other regulations or requirements was $2 billion . Restricted cash is included in interest-bearing deposits with banks on the consolidated balance sheet. Securities segregated under federal and other regulations or requirements were $1 billion at Dec. 31, 2019 and $2 billion at Dec. 31, 2018

Loans and asset quality

Loans and asset quality	12 Months Ended
Loans and asset quality	Dec. 31, 2019
Receivables [Abstract]
Loans and asset quality	Loans and asset quality Loans The table below provides the details of our loan portfolio and industry concentrations of credit risk at Dec. 31, 2019 and Dec. 31, 2018 . Loans Dec. 31, (in millions) 2019 2018 Domestic: Commercial $ 1,442 $ 1,949 Commercial real estate 5,575 4,787 Financial institutions 4,852 5,091 Lease financings 537 706 Wealth management loans and mortgages 16,050 15,843 Other residential mortgages 494 594 Overdrafts 524 1,550 Other 1,167 1,181 Margin loans 11,907 13,343 Total domestic 42,548 45,044 Foreign: Commercial 347 183 Commercial real estate 7 — Financial institutions 7,626 6,492 Lease financings 576 551 Wealth management loans and mortgages 140 122 Other (primarily overdrafts) 2,230 4,031 Margin loans 1,479 141 Total foreign 12,405 11,520 Total loans (a) $ 54,953 $ 56,564 (a) Net of unearned income of $313 million at Dec. 31, 2019 and $358 million at Dec. 31, 2018 primarily related to domestic and foreign lease financings. Our loan portfolio consists of three portfolio segments: commercial, lease financings and mortgages. We manage our portfolio at the class level, which consists of six classes of financing receivables: commercial, commercial real estate, financial institutions, lease financings, wealth management loans and mortgages, and other residential mortgages. The following tables are presented for each class of financing receivables and provide additional information about our credit risks and the adequacy of our allowance for credit losses. Allowance for credit losses Activity in the allowance for credit losses is presented below. Allowance for credit losses activity for the year ended Dec. 31, 2019 Wealth management loans and mortgages Other All Foreign Total (in millions) Commercial Commercial Financial Lease Beginning balance $ 81 $ 75 $ 22 $ 5 $ 21 $ 16 $ — $ 32 $ 252 Charge-offs (12 ) — — — (1 ) (1 ) — — (14 ) Recoveries — — — — — 3 — — 3 Net (charge-offs) recoveries (12 ) — — — (1 ) 2 — — (11 ) Provision (9 ) 1 (2 ) (2 ) — (5 ) — (8 ) (25 ) Ending balance $ 60 $ 76 $ 20 $ 3 $ 20 $ 13 $ — $ 24 $ 216 Allowance for: Loan losses $ 11 $ 57 $ 5 $ 3 $ 18 $ 13 $ — $ 15 $ 122 Lending-related commitments 49 19 15 — 2 — — 9 94 Individually evaluated for impairment: Loan balance $ — $ — $ — $ — $ 15 $ — $ — $ — $ 15 Allowance for loan losses — — — — — — — — — Collectively evaluated for impairment: Loan balance $ 1,442 $ 5,575 $ 4,852 $ 537 $ 16,035 $ 494 $ 13,598 (a) $ 12,405 $ 54,938 Allowance for loan losses 11 57 5 3 18 13 — 15 122 (a) Includes $524 million of domestic overdrafts, $11,907 million of margin loans and $1,167 million of other loans at Dec. 31, 2019 . Allowance for credit losses activity for the year ended Dec. 31, 2018 Wealth management loans and mortgages Other All Foreign Total (in millions) Commercial Commercial Financial Lease Beginning balance $ 77 $ 76 $ 23 $ 8 $ 22 $ 20 $ — $ 35 $ 261 Charge-offs — — — — — (1 ) — — (1 ) Recoveries — — — — — 2 — 1 3 Net recoveries — — — — — 1 — 1 2 Provision 4 (1 ) (1 ) (3 ) (1 ) (5 ) — (4 ) (11 ) Ending balance $ 81 $ 75 $ 22 $ 5 $ 21 $ 16 $ — $ 32 $ 252 Allowance for: Loan losses $ 24 $ 56 $ 7 $ 5 $ 18 $ 16 $ — $ 20 $ 146 Lending-related commitments 57 19 15 — 3 — — 12 106 Individually evaluated for impairment: Loan balance $ — $ — $ — $ — $ 4 $ — $ — $ — $ 4 Allowance for loan losses — — — — — — — — — Collectively evaluated for impairment: Loan balance $ 1,949 $ 4,787 $ 5,091 $ 706 $ 15,839 $ 594 $ 16,074 (a) $ 11,520 $ 56,560 Allowance for loan losses 24 56 7 5 18 16 — 20 146 (a) Includes $1,550 million of domestic overdrafts, $13,343 million of margin loans and $1,181 million of other loans at Dec. 31, 2018 . Allowance for credit losses activity f or the year ended Dec. 31, 2017 Wealth management loans and mortgages Other All Foreign Total (in millions) Commercial Commercial Financial Lease Beginning balance $ 82 $ 73 $ 26 $ 13 $ 23 $ 28 $ — $ 36 $ 281 Charge-offs — — — — — (1 ) — — (1 ) Recoveries — — — — — 5 — — 5 Net recoveries — — — — — 4 — — 4 Provision (5 ) 3 (3 ) (5 ) (1 ) (12 ) — (1 ) (24 ) Ending balance $ 77 $ 76 $ 23 $ 8 $ 22 $ 20 $ — $ 35 $ 261 Allowance for: Loans losses $ 24 $ 58 $ 7 $ 8 $ 18 $ 20 $ — $ 24 $ 159 Unfunded commitments 53 18 16 — 4 — — 11 102 Individually evaluated for impairment: Loan balance $ — $ — $ 1 $ — $ 5 $ — $ — $ — $ 6 Allowance for loan losses — — — — 1 — — — 1 Collectively evaluated for impairment: Loan balance $ 2,744 $ 4,900 $ 5,567 $ 772 $ 16,415 $ 708 $ 17,783 (a) $ 12,645 $ 61,534 Allowance for loan losses 24 58 7 8 17 20 — 24 158 (a) Includes $963 million of domestic overdrafts, $15,689 million of margin loans and $1,131 million of other loans at Dec. 31, 2017 . Nonperforming assets The table below presents our nonperforming assets. Nonperforming assets (in millions) Dec. 31, 2019 2018 Nonperforming loans: Other residential mortgages $ 62 $ 67 Wealth management loans and mortgages 24 9 Total nonperforming loans 86 76 Other assets owned 3 3 Total nonperforming assets $ 89 $ 79 At Dec. 31, 2019 , undrawn commitments to borrowers whose loans were classified as nonaccrual or reduced rate were not material. Lost interest The table below presents the amount of lost interest income. Lost interest (in millions) 2019 2018 2017 Amount by which interest income recognized on nonperforming loans exceeded reversals Total $ — $ — $ — Foreign — — — Amount by which interest income would have increased if nonperforming loans at year-end had been performing for the entire year Total $ 6 $ 5 $ 5 Foreign — — — Impaired loans The tables below present information about our impaired loans. We use the discounted cash flow method as the primary method for valuing impaired loans. Impaired loans 2019 2018 2017 (in millions) Average recorded investment Interest revenue recognized Average recorded investment Interest revenue recognized Average recorded investment Interest revenue recognized Impaired loans with an allowance: Commercial $ 39 $ — $ — $ — $ — $ — Financial institutions — — — — 1 — Wealth management loans and mortgages — — 1 — 2 — Lease financings — — — — 1 — Total impaired loans with an allowance 39 — 1 — 4 — Impaired loans without an allowance: (a) Wealth management loans and mortgages 11 — 4 — 3 — Total impaired loans $ 50 $ — $ 5 $ — $ 7 $ — (a) When the discounted cash flows, collateral value or market price equals or exceeds the carrying value of the loan, then the loan does not require an allowance under the accounting standard related to impaired loans. Impaired loans Dec. 31, 2019 Dec. 31, 2018 (in millions) Recorded investment Unpaid principal balance Related allowance (a) Recorded investment Unpaid principal balance Related allowance (a) Impaired loans without an allowance: (b) Wealth management loans and mortgages $ 15 $ 15 N/A $ 4 $ 4 N/A Total impaired loans (c) $ 15 $ 15 $ — $ 4 $ 4 $ — (a) The allowance for impaired loans is included in the allowance for loan losses. (b) When the discounted cash flows, collateral value or market price equals or exceeds the carrying value of the loan, then the loan does not require an allowance under the accounting standard related to impaired loans. (c) Excludes an aggregate of less than $1 million of impaired loans in amounts individually less than $1 million at both Dec. 31, 2019 and Dec. 31, 2018 , respectively. The allowance for loan losses associated with these loans totaled less than $1 million at both Dec. 31, 2019 and Dec. 31, 2018 , respectively. Past due loans The table below presents our past due loans. Past due loans and still accruing interest Dec. 31, 2019 Dec. 31, 2018 Days past due Total past due Days past due Total past due (in millions) 30-59 60-89 ≥90 30-59 60-89 ≥90 Financial institutions $ 1 $ 30 $ — $ 31 $ 3 $ 3 $ — $ 6 Wealth management loans and mortgages 22 5 — 27 22 1 5 28 Commercial real estate 6 12 — 18 1 — — 1 Other residential mortgages 8 3 — 11 12 6 7 25 Total past due loans $ 37 $ 50 $ — $ 87 $ 38 $ 10 $ 12 $ 60 Troubled debt restructurings A modified loan is considered a TDR if the debtor is experiencing financial difficulties and the creditor grants a concession to the debtor that would not otherwise be considered. A TDR may include a transfer of real estate or other assets from the debtor to the creditor, or a modification of the term of the loan. Not all modified loans are considered TDRs. We modified 12 other residential loans with an aggregate pre- and post-modification recorded investment of $6 million in 2019 , and 17 other residential loans with an aggregate pre- and post- modification recorded investment of $4 million in 2018 . The modifications of the other residential mortgage loans in 2019 and 2018 consisted of reducing the stated interest rates and, in certain cases, a forbearance of default and extending the maturity dates. The modified loans are primarily collateral dependent for which the value is based on the fair value of the collateral. TDRs that subsequently defaulted There were nine residential mortgage loans and one wealth management loan, with an aggregate recorded investment of $4 million , which were restructured in a TDR during the previous 12 months and subsequently defaulted in 2019 Credit quality indicators Our credit strategy is to focus on investment-grade clients that are active users of our non-credit services. Each customer is assigned an internal credit rating, which is mapped to an external rating agency grade equivalent, if possible, based upon a number of dimensions, which are continually evaluated and may change over time. The following tables present information about credit quality indicators. Commercial loan portfolio Commercial loan portfolio – Credit risk profile by creditworthiness category Commercial Commercial real estate Financial institutions Dec. 31, Dec. 31, Dec. 31, (in millions) 2019 2018 2019 2018 2019 2018 Investment grade $ 1,744 $ 2,036 $ 5,045 $ 4,184 $ 10,265 $ 9,586 Non-investment grade 45 96 537 603 2,213 1,997 Total $ 1,789 $ 2,132 $ 5,582 $ 4,787 $ 12,478 $ 11,583 The commercial loan portfolio is divided into investment grade and non-investment grade categories based on the assigned internal credit ratings, which are generally consistent with those of the public rating agencies. Customers with ratings consistent with BBB- (Standard & Poor’s (“S&Ps”))/Baa3 (Moody’s) or better are considered to be investment grade. Those clients with ratings lower than this threshold are considered to be non-investment grade. Wealth management loans and mortgages Wealth management loans and mortgages – Credit risk profile by internally assigned grade Dec. 31, (in millions) 2019 2018 Wealth management loans: Investment grade $ 7,254 $ 6,901 Non-investment grade 140 106 Wealth management mortgages 8,796 8,958 Total $ 16,190 $ 15,965 Wealth management non-mortgage loans are not typically rated by external rating agencies. A majority of the wealth management loans are secured by the customers’ investment management accounts or custody accounts. Eligible assets pledged for these loans are typically investment grade fixed-income securities, equities and/or mutual funds. Internal ratings for this portion of the wealth management portfolio, therefore, would equate to investment-grade external ratings. Wealth management loans are provided to select customers based on the pledge of other types of assets, including business assets, fixed assets or a modest amount of commercial real estate. For the loans collateralized by other assets, the credit quality of the obligor is carefully analyzed, but we do not consider this portfolio of loans to be investment grade. Credit quality indicators for wealth management mortgages are not correlated to external ratings. Wealth management mortgages are typically loans to high-net-worth individuals, which are secured primarily by residential property. These loans are primarily interest-only, adjustable rate mortgages with a weighted-average loan-to-value ratio of 62% at origination. In the wealth management portfolio, less than 1% of the mortgages were past due at Dec. 31, 2019 . At Dec. 31, 2019 , the wealth management mortgage portfolio consisted of the following geographic concentrations: California - 23% ; New York - 17% ; Massachusetts - 10% ; Florida - 8% ; and other - 42% . Other residential mortgages The other residential mortgage portfolio primarily consists of 1-4 family residential mortgage loans and totaled $494 million at Dec. 31, 2019 and $594 million at Dec. 31, 2018 . These loans are not typically correlated to external ratings. Included in this portfolio at Dec. 31, 2019 were $91 million of mortgage loans purchased in 2005, 2006 and the first quarter of 2007, of which, 10% of the serviced loan balance was at least 60 days delinquent. Overdrafts Overdrafts primarily relate to custody and securities clearance clients and totaled $2.7 billion at Dec. 31, 2019 and $5.5 billion at Dec. 31, 2018 . Overdrafts occur on a daily basis primarily in the custody and securities clearance business and are generally repaid within two business days. Other loans Other loans primarily include loans to consumers that are fully collateralized with equities, mutual funds and fixed-income securities. Margin loans We had $13.4 billion of secured margin loans at Dec. 31, 2019 , compared with $13.5 billion at Dec. 31, 2018 . Margin loans are collateralized with marketable securities, and borrowers are required to maintain a daily collateral margin in excess of 100% of the value of the loan. We have rarely suffered a loss on these types of loans and do not allocate any of our allowance for credit losses to margin loans. Reverse repurchase agreements Reverse repurchase agreements are transactions fully collateralized with high-quality liquid securities. These transactions carry minimal credit risk and therefore are not allocated an allowance for credit losses.

Leasing

Leasing	12 Months Ended
Leasing	Dec. 31, 2019
Leases [Abstract]
Leasing	Leasing We have operating and finance leases for corporate offices, data centers and certain equipment. Our leases have remaining lease terms of one year to 20 years , some of which include options to extend or terminate the lease. In some of our corporate office locations, we may enter into sublease arrangements for portions or all of the space and/or lease term. The following table presents the consolidated balance sheet information related to operating and finance leases. Balance sheet information Dec. 31, 2019 (dollar in millions) Operating Finance Total Right-of-use assets (a) $ 1,530 $ 12 $ 1,542 Lease liability (b) $ 1,772 $ 2 $ 1,774 Weighted average: Remaining lease term 11.3 years 2.6 years Discount rate (annualized) 2.76 % 2.88 % (a) Included in premises and equipment on the consolidated balance sheet. (b) Operating lease liabilities are included in other liabilities and finance lease liabilities are included in other borrowed funds, both on the consolidated balance sheet. The following table presents the components of lease expense. Lease expense Year ended (in millions) Dec. 31, 2019 Operating lease expense $ 266 Variable lease expense 39 Sublease income (33 ) Finance lease expense: Amortization of right-of-use assets 7 Interest on lease liabilities — Total finance lease expense $ 7 Total lease expense $ 279 The following table presents cash flow information related to leases. Cash flow information Year ended (in millions) Dec. 31, 2019 Cash paid for amounts included in measurement of liabilities: Operating cash flows from finance leases $ — Operating cash flows from operating leases $ 285 Financing cash flows from finance leases $ 20 See Note 26 for information on non-cash operating and/or finance lease transactions. The following table presents the maturities of lease liabilities. Maturities of lease liabilities Operating Finance (in millions) For the year ended Dec. 31, 2020 $ 284 $ 2 2021 224 — 2022 199 — 2023 166 — 2024 136 — 2025 and thereafter 1,057 — Total lease payments 2,066 2 Less: Imputed interest (294 ) — Total $ 1,772 $ 2 The following table presents the maturity of lease liabilities on operating leases prior to adopting ASU 2016-02, Leases . Maturities of lease liabilities Operating (in millions) For the year ended Dec. 31, 2020 $ 244 2021 211 2022 172 2023 136 2024 and thereafter 432 Total $ 1,195
Leasing	Leasing We have operating and finance leases for corporate offices, data centers and certain equipment. Our leases have remaining lease terms of one year to 20 years , some of which include options to extend or terminate the lease. In some of our corporate office locations, we may enter into sublease arrangements for portions or all of the space and/or lease term. The following table presents the consolidated balance sheet information related to operating and finance leases. Balance sheet information Dec. 31, 2019 (dollar in millions) Operating Finance Total Right-of-use assets (a) $ 1,530 $ 12 $ 1,542 Lease liability (b) $ 1,772 $ 2 $ 1,774 Weighted average: Remaining lease term 11.3 years 2.6 years Discount rate (annualized) 2.76 % 2.88 % (a) Included in premises and equipment on the consolidated balance sheet. (b) Operating lease liabilities are included in other liabilities and finance lease liabilities are included in other borrowed funds, both on the consolidated balance sheet. The following table presents the components of lease expense. Lease expense Year ended (in millions) Dec. 31, 2019 Operating lease expense $ 266 Variable lease expense 39 Sublease income (33 ) Finance lease expense: Amortization of right-of-use assets 7 Interest on lease liabilities — Total finance lease expense $ 7 Total lease expense $ 279 The following table presents cash flow information related to leases. Cash flow information Year ended (in millions) Dec. 31, 2019 Cash paid for amounts included in measurement of liabilities: Operating cash flows from finance leases $ — Operating cash flows from operating leases $ 285 Financing cash flows from finance leases $ 20 See Note 26 for information on non-cash operating and/or finance lease transactions. The following table presents the maturities of lease liabilities. Maturities of lease liabilities Operating Finance (in millions) For the year ended Dec. 31, 2020 $ 284 $ 2 2021 224 — 2022 199 — 2023 166 — 2024 136 — 2025 and thereafter 1,057 — Total lease payments 2,066 2 Less: Imputed interest (294 ) — Total $ 1,772 $ 2 The following table presents the maturity of lease liabilities on operating leases prior to adopting ASU 2016-02, Leases . Maturities of lease liabilities Operating (in millions) For the year ended Dec. 31, 2020 $ 244 2021 211 2022 172 2023 136 2024 and thereafter 432 Total $ 1,195

Goodwill and intangible assets

Goodwill and intangible assets	12 Months Ended
Goodwill and intangible assets	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and intangible assets	Goodwill and intangible assets Goodwill The table below provides a breakdown of goodwill by business. Goodwill by business (in millions) Investment Investment Other Consolidated Balance at Dec. 31, 2017 $ 8,389 $ 9,128 $ 47 $ 17,564 Dispositions — (65 ) — (65 ) Foreign currency translation (56 ) (93 ) — (149 ) Balance at Dec. 31, 2018 $ 8,333 $ 8,970 $ 47 $ 17,350 Foreign currency translation (1 ) 37 — 36 Balance at Dec. 31, 2019 $ 8,332 $ 9,007 $ 47 $ 17,386 Total goodwill increased in 2019 compared with 2018 reflecting the impact of foreign currency translation on non-U.S. dollar denominated goodwill. Intangible assets The table below provides a breakdown of intangible assets by business. Intangible assets – net carrying amount by business (in millions) Investment Investment Other Consolidated Balance at Dec. 31, 2017 $ 888 $ 1,674 $ 849 $ 3,411 Amortization (129 ) (51 ) — (180 ) Foreign currency translation (1 ) (10 ) — (11 ) Balance at Dec. 31, 2018 $ 758 $ 1,613 $ 849 $ 3,220 Amortization (80 ) (37 ) — (117 ) Foreign currency translation — 4 — 4 Balance at Dec. 31, 2019 $ 678 $ 1,580 $ 849 $ 3,107 Intangible assets decreased in 2019 compared with 2018 primarily reflecting amortization. The table below provides a breakdown of intangible assets by type. Intangible assets Dec. 31, 2019 Dec. 31, 2018 (in millions) Gross carrying amount Accumulated amortization Net carrying amount Remaining weighted- average amortization period Gross Accumulated Net carrying amount Subject to amortization: (a) Customer contracts—Investment Services $ 1,520 $ (1,214 ) $ 306 10 years $ 1,572 $ (1,186 ) $ 386 Customer relationships—Investment Management 712 (544 ) 168 11 years 899 (699 ) 200 Other 64 (16 ) 48 14 years 26 (12 ) 14 Total subject to amortization 2,296 (1,774 ) 522 10 years 2,497 (1,897 ) 600 Not subject to amortization: (b) Tradenames 1,293 N/A 1,293 N/A 1,332 N/A 1,332 Customer relationships 1,292 N/A 1,292 N/A 1,288 N/A 1,288 Total not subject to amortization 2,585 N/A 2,585 N/A 2,620 N/A 2,620 Total intangible assets $ 4,881 $ (1,774 ) $ 3,107 N/A $ 5,117 $ (1,897 ) $ 3,220 (a) Excludes fully amortized intangible assets. (b) Intangible assets not subject to amortization have an indefinite life. Estimated annual amortization expense for current intangibles for the next five years is as follows: For the year ended Estimated amortization expense (in millions) 2020 $ 104 2021 81 2022 63 2023 52 2024 45 Impairment testing The goodwill impairment test is performed at least annually at the reporting unit level. Intangible assets not subject to amortization are tested for impairment annually or more often if events or circumstances indicate they may be impaired. BNY Mellon’s three business segments include seven reporting units for which goodwill impairment testing is performed on an annual basis. The Investment Services segment is comprised of four reporting units; the Investment Management segment is comprised of two reporting units and one reporting unit is included in the Other segment. As a result of the annual goodwill impairment test of the seven reporting units conducted in the second quarter of 2019, no

Deposits

Deposits	12 Months Ended
Deposits	Dec. 31, 2019
Deposits [Abstract]
Deposits	Deposits Total time deposits in denominations of $250,000 or more were $44.1 billion at Dec. 31, 2019 and $32.1 billion at Dec. 31, 2018 . At Dec. 31, 2019 , the scheduled maturities of all time deposits are as follows: 2020 – $48.3 billion ; 2021 – $2 million ; 2022 – $- million; 2023 – $- million; 2024 – $- million; and 2025 and thereafter – $1 million .

Other assets

Other assets	12 Months Ended
Other assets	Dec. 31, 2019
Other Assets [Abstract]
Other assets	Other assets The following table provides the components of other assets presented on the consolidated balance sheet. Other assets Dec. 31, (in millions) 2019 2018 Corporate/bank-owned life insurance $ 5,219 $ 4,937 Accounts receivable 3,802 3,692 Fails to deliver 1,671 2,274 Software 1,590 1,652 Prepaid pension assets 1,464 1,357 Renewable energy investments 1,144 1,264 Equity in a joint venture and other investments 1,102 1,064 Qualified affordable housing project investments 1,024 999 Prepaid expense 491 385 Federal Reserve Bank stock 466 484 Income taxes receivable 388 1,125 Seed capital 184 224 Fair value of hedging derivatives 21 289 Other (a) 1,655 1,552 Total other assets $ 20,221 $ 21,298 (a) At Dec. 31, 2019 and Dec. 31, 2018 , other assets include $22 million and $111 million , respectively, of Federal Home Loan Bank stock, at cost. Non-readily marketable equity securities Non-readily marketable equity securities do not have readily determinable fair values. These investments are valued using a measurement alternative where the investments are carried at cost, less any impairment, and plus or minus changes resulting from observable price changes in orderly transactions for an identical or similar investment of the same issuer. The observable price changes are recorded in investment and other income on the consolidated income statement. Our non-readily marketable equity securities totaled $61 million at Dec. 31, 2019 and $55 million at Dec. 31, 2018 and are included in equity in a joint venture and other investments in the table above. The following table presents the adjustments on the non-readily marketable equity securities. Non-readily marketable equity securities Life-to-date (in millions) 2019 2018 Upward adjustments $ 4 $ 28 $ 32 Downward adjustments (3 ) (1 ) (4 ) Net adjustments $ 1 $ 27 $ 28 Qualified affordable housing project investments We invest in affordable housing projects primarily to satisfy the Company’s requirements under the Community Reinvestment Act. Our total investment in qualified affordable housing projects totaled $1.0 billion at both Dec. 31, 2019 and Dec. 31, 2018 . Commitments to fund future investments in qualified affordable housing projects totaled $422 million at Dec. 31, 2019 and $479 million at Dec. 31, 2018 and are recorded in other liabilities. A summary of the commitments to fund future investments is as follows: 2020 – $152 million ; 2021 – $161 million ; 2022 – $82 million ; 2023 – $5 million ; 2024 – $2 million ; and 2025 and thereafter – $20 million . Tax credits and other tax benefits recognized were $148 million in 2019 , $163 million in 2018 and $156 million in 2017 . Amortization expense included in the provision for income taxes was $121 million in 2019 , $136 million in 2018 and $153 million in 2017 . Investments valued using net asset value (“NAV”) per share In our Investment Management business, we make seed capital investments in certain funds we manage. We also hold private equity investments, specifically small business investment companies (“SBICs”), which are compliant with the Volcker Rule, and certain other corporate investments. Seed capital, private equity and other corporate investments are included in other assets on the consolidated balance sheet. The fair value of certain of these investments was estimated using the NAV per share for our ownership interest in the funds. The table below presents information on our investments valued using NAV. Investments valued using NAV Dec. 31, 2019 Dec. 31, 2018 (in millions) Fair value Unfunded commitments Fair value Unfunded commitments Seed capital (a) $ 59 $ — $ 54 $ — Private equity investments (SBICs) (b) 89 55 74 41 Other (c) 33 — 87 — Total $ 181 $ 55 $ 215 $ 41 (a) Primarily includes leveraged loans and structured credit funds which are generally not redeemable. Distributions from such investments will be received as the underlying investments in the funds, which have a life of six years, are liquidated. (b) Private equity investments include Volcker Rule-compliant investments in SBICs that invest in various sectors of the economy. Private equity investments do not have redemption rights. Distributions from such investments will be received as the underlying investments in the private equity investments, which have a life of 10 years, are liquidated. (c) Primarily relates to investments in funds that relate to deferred compensation arrangements with employees. Investments in funds can be redeemed on a quarterly basis with redemption notice periods up to 95 days . At Dec. 31, 2018, also included investments which could be redeemed daily or monthly with a redemption notice period of one day .

Contract revenue

Contract revenue	12 Months Ended
Contract revenue	Dec. 31, 2019
Revenue from Contract with Customer [Abstract]
Contract revenue	Contract revenue Fee revenue in Investment Services and Investment Management is primarily variable, based on levels of assets under custody and/or administration (“AUC/A”), AUM and the level of client-driven transactions, as specified in fee schedules. Investment services fees are based primarily on the market value of AUC/A; client accounts, balances and the volume of transactions; securities lending volume and spreads; and fees for other services. Certain fees based on the market value of assets are calculated in arrears on a monthly or quarterly basis. Substantially all services within the Investment Services business are provided over time. Revenue on these services is recognized using the time elapsed method, equal to the expected invoice amount, which typically represents the value provided to the customer for our performance completed to date. Clearing services revenue includes multiple types of fees, some of which are driven by customer actions and are delivered at a point-in-time. These transaction-based fees are generally recognized on trade date. Other contractual clearing services fees are driven by the amount of AUC/A or the number of accounts or securities positions and are billed on a monthly or quarterly basis. Investment management fees are dependent on the overall level and mix of AUM. The management fees, expressed in basis points, are charged for managing those assets. Management fees are typically subject to fee schedules based on the overall level of assets managed and products in which those assets are invested. Investment management fee revenue also includes transactional- and account-based fees. These fees along with distribution and servicing fees are recognized when the services have been completed. Clients are generally billed for services performed on a monthly or quarterly basis. Performance fees are generally calculated as a percentage of the applicable portfolio’s performance in excess of a benchmark index or a peer group’s performance. Performance fees are recognized at the end of the measurement period when they are determinable. See Note 24 for additional information on our principal businesses, Investment Services and Investment Management, and the primary services provided. Disaggregation of contract revenue Contract revenue is included in fee revenue on the consolidated income statement. The following table presents fee revenue related to contracts with customers, disaggregated by type of fee revenue, for each business segment. Disaggregation of contract revenue by business segment (a) Year ended Dec. 31, 2019 2018 (in millions) IS IM Other Total IS IM Other Total Fee revenue - contract revenue: Investment services fees: Asset servicing fees $ 4,365 $ 85 $ 1 $ 4,451 $ 4,395 $ 88 $ 1 $ 4,484 Clearing services fees (b) 1,649 — (1 ) 1,648 1,615 — — 1,615 Issuer services fees 1,130 — — 1,130 1,099 — — 1,099 Treasury services fees 560 1 — 561 553 1 — 554 Total investment services fees (b) 7,704 86 — 7,790 7,662 89 1 7,752 Investment management and performance fees (b) 17 3,373 — 3,390 16 3,619 — 3,635 Financing-related fees 59 — 1 60 61 1 (2 ) 60 Distribution and servicing (49 ) 178 — 129 (51 ) 191 — 140 Investment and other income 282 (197 ) — 85 279 (202 ) 2 79 Total fee revenue - contract revenue 8,013 3,440 1 11,454 7,967 3,698 1 11,666 Fee and other revenue - not in scope of ASC 606 (c)(d) 881 26 887 1,794 959 83 84 1,126 Total fee and other revenue $ 8,894 $ 3,466 $ 888 $ 13,248 $ 8,926 $ 3,781 $ 85 $ 12,792 (a) Business segment data has been determined on an internal management basis of accounting, rather than the generally accepted accounting principles used for consolidated financial reporting. (b) In 2019, we reclassified certain platform-related fees to clearing services fees from investment management and performance fees. Prior periods have been reclassified. (c) Primarily includes investment and other income, foreign exchange and other trading revenue, financing-related fees, asset servicing fees and net securities gains (losses), all of which are accounted for using other accounting guidance. (d) The Investment Management business includes income from consolidated investment management funds, net of noncontrolling interests, of $30 million in 2019 and a loss of $1 million in 2018 . IS - Investment Services segment. IM - Investment Management segment. Contract balances Our clients are billed based on fee schedules that are agreed upon in each customer contract. Receivables from customers were $2.4 billion at Dec. 31, 2019 and $2.5 billion at Dec. 31, 2018 . An allowance is maintained for accounts receivable which is generally based on the number of days outstanding. Adjustments to the allowance are recorded in other expense on the consolidated income statement. We recorded a provision of $15 million in 2019 and $11 million in 2018 . Contract assets represent accrued revenues that have not yet been billed to the customers due to certain contractual terms other than the passage of time and were $32 million at Dec. 31, 2019 and $36 million at Dec. 31, 2018 . Accrued revenues recorded as contract assets are usually billed on an annual basis. There were no impairments recorded on contract assets in 2019 . Both receivables from customers and contract assets are included in other assets on the consolidated balance sheet. Contract liabilities represent payments received in advance of providing services under certain contracts and were $168 million at Dec. 31, 2019 and $171 million at Dec. 31, 2018 . Contract liabilities are included in other liabilities on the consolidated balance sheet. Revenue recognized in 2019 relating to contract liabilities as of Dec. 31, 2018 was $99 million . Changes in contract assets and liabilities primarily relate to either party’s performance under the contracts. Contract costs Incremental costs for obtaining contracts that are deemed recoverable are capitalized as contract costs. Such costs result from the payment of sales incentives, primarily in the Wealth Management business, and totaled $86 million at Dec. 31, 2019 and $98 million at Dec. 31, 2018 . Capitalized sales incentives are amortized based on the transfer of goods or services to which the assets relate and typically average nine years . The amortization of capitalized sales incentives, which is primarily included in staff expense on the consolidated income statement, totaled $22 million in both 2019 and 2018 . Costs to fulfill a contract are capitalized when they relate directly to an existing contract or a specific anticipated contract, generate or enhance resources that will be used to fulfill performance obligations and are recoverable. Such costs generally represent set-up costs, which include any direct cost incurred at the inception of a contract which enables the fulfillment of the performance obligation and totaled $16 million at Dec. 31, 2019 and $20 million at Dec. 31, 2018 . These capitalized costs are amortized on a straight-line basis over the expected contract period which generally ranges from seven to nine years . The amortization is included in other expense on the consolidated income statement and totaled $5 million in both 2019 and 2018 . There were no impairments recorded on capitalized contract costs in 2019 . Unsatisfied performance obligations We do not have any unsatisfied performance obligations other than those that are subject to a practical expedient election under ASC 606, Revenue From Contracts With Customers . The practical expedient election applies to (i) contracts with an original expected length of one year or less, and (ii) contracts for which we recognize revenue at the amount to which we have the right to invoice for services performed.

Net interest revenue

Net interest revenue	12 Months Ended
Net interest revenue	Dec. 31, 2019
Interest Revenue (Expense), Net [Abstract]
Net interest revenue	Net interest revenue The following table provides the components of net interest revenue presented on the consolidated income statement. Net interest revenue Year ended Dec. 31, (in millions) 2019 2018 2017 Interest revenue Deposits with the Federal Reserve and other central banks $ 448 $ 531 $ 319 Deposits with banks 265 219 120 Federal funds sold and securities purchased under resale agreements 2,154 1,116 423 Margin loans 454 510 343 Non-margin loans 1,335 1,356 1,077 Securities: Taxable 2,701 2,520 1,977 Exempt from federal income taxes 36 54 64 Total securities 2,737 2,574 2,041 Trading securities 155 126 59 Total interest revenue 7,548 6,432 4,382 Interest expense Deposits in domestic offices 958 537 107 Deposits in foreign offices 636 340 55 Federal funds purchased and securities sold under repurchase agreements 1,437 758 225 Trading liabilities 35 29 7 Other borrowed funds 59 58 26 Commercial paper 55 51 29 Customer payables 238 191 64 Long-term debt 942 857 561 Total interest expense 4,360 2,821 1,074 Net interest revenue 3,188 3,611 3,308 Provision for credit losses (25 ) (11 ) (24 ) Net interest revenue after provision for credit losses $ 3,213 $ 3,622 $ 3,332

Income taxes

Income taxes	12 Months Ended
Income taxes	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Income taxes	Income taxes The components of the income tax provision are as follows: Provision for income taxes Year ended Dec. 31, (in millions) 2019 2018 2017 Current tax expense (benefit): Federal $ 592 $ 902 $ (99 ) Foreign 484 442 388 State and local 113 119 74 Total current tax expense 1,189 1,463 363 Deferred tax (benefit) expense: Federal (3 ) (556 ) 36 Foreign (13 ) 9 14 State and local (53 ) 22 83 Total deferred tax (benefit) expense (69 ) (525 ) 133 Provision for income taxes $ 1,120 $ 938 $ 496 In December 2017, the Tax Cuts and Jobs Act of 2017 (“U.S. tax legislation”) was signed into law. Also in December 2017, the Securities and Exchange Commission staff issued Staff Accounting Bulletin No.118 (“SAB 118”). SAB 118 allowed the recording of a provisional estimate to reflect the income tax impact of the U.S. tax legislation and provided a measurement period up to one year from the enactment date. Due to the timing of the enactment and the complexity involved in applying the provisions of the U.S. tax legislation, we recorded a provisional tax benefit of $710 million in the fourth quarter of 2017. In 2018, we completed our analysis of the U.S. tax legislation and recorded an additional $106 million tax benefit. The components of income before taxes are as follows: Income before taxes Year ended Dec. 31, (in millions) 2019 2018 2017 Domestic $ 3,516 $ 3,008 $ 2,699 Foreign 2,071 2,184 1,911 Income before taxes $ 5,587 $ 5,192 $ 4,610 The components of our net deferred tax liability are as follows: Net deferred tax liability Dec. 31, (in millions) 2019 2018 Depreciation and amortization $ 2,136 $ 2,060 Pension obligation 282 300 Renewable energy investment 268 295 Equity investments 63 65 Lease financings 42 130 Securities valuation 1 (15 ) Credit losses on loans (46 ) (54 ) Reserves not deducted for tax (120 ) (143 ) Employee benefits (257 ) (266 ) Other assets (43 ) (65 ) Other liabilities 229 189 U.S. foreign tax credits (39 ) — Valuation allowance 39 — Net deferred tax liability $ 2,555 $ 2,496 As of Dec. 31, 2019 , BNY Mellon has $39 million of U.S. foreign tax credit carryforwards which will expire in 2029. We believe it is more likely than not that the benefit from these foreign tax credits will not be realized. Accordingly, we have recorded a valuation allowance of $39 million . We believe it is more likely than not that we will fully realize our remaining deferred tax assets. This conclusion is based on historical financial results and profit forecasts. As of Dec. 31, 2019, we had approximately $280 million of earnings attributable to foreign subsidiaries that have been permanently reinvested abroad and for which no local distribution tax provision has been recorded. If these earnings were to be repatriated, the estimated tax liability as of Dec. 31, 2019 would be up to $60 million . The statutory federal income tax rate is reconciled to our effective income tax rate below: Effective tax rate Year ended Dec. 31, 2019 2018 2017 Federal rate 21.0 % 21.0 % 35.0 % State and local income taxes, net of federal income tax benefit 0.9 2.1 1.8 Foreign operations 2.4 0.5 (4.2 ) Tax credits (3.2 ) (3.3 ) (3.7 ) Tax-exempt income (0.7 ) (0.8 ) (1.9 ) Leverage lease adjustment — — (1.4 ) Federal Deposit Insurance Corporation (“FDIC”) assessment 0.2 0.5 — Stock compensation (0.4 ) (0.6 ) (1.1 ) U.S. tax legislation — (1.7 ) (13.3 ) Other – net (0.2 ) 0.4 (0.4 ) Effective tax rate 20.0 % 18.1 % 10.8 % Unrecognized tax positions (in millions) 2019 2018 2017 Beginning balance at Jan. 1, – gross $ 103 $ 128 $ 146 Prior period tax positions: Increases 60 6 20 Decreases (3 ) (8 ) (4 ) Current period tax positions 17 9 10 Settlements (4 ) (32 ) (44 ) Ending balance at Dec. 31, – gross $ 173 $ 103 $ 128 Our total tax reserves as of Dec. 31, 2019 were $173 million compared with $103 million at Dec. 31, 2018 . If these tax reserves were unnecessary, $173 million would affect the effective tax rate in future periods. We recognize accrued interest and penalties, if applicable, related to income taxes in income tax expense. Included in the balance sheet at Dec. 31, 2019 is accrued interest, where applicable, of $31 million . The additional tax expense related to interest for the year ended Dec. 31, 2019 was $13 million , compared with $8 million for the year ended Dec. 31, 2018 . It is reasonably possible the total reserve for uncertain tax positions could decrease within the next 12 months by approximately $100 million as a result of adjustments related to tax years that are still subject to examination. Our federal income tax returns are closed to examination through 2013. Our New York State, New York City and UK income tax returns are closed to examination through 2012.

Long-term debt

Long-term debt	12 Months Ended
Long-term debt	Dec. 31, 2019
Debt Disclosure [Abstract]
Long-term debt	Long-term debt Long-term debt Dec. 31, 2019 Dec. 31, 2018 (in millions) Rate Maturity Amount Rate Amount Senior debt: Fixed rate 1.95 - 4.60% 2020 - 2028 $ 23,519 2.05 - 5.45% $ 24,995 Floating rate 1.71 - 2.96% 2020 - 2038 2,328 2.61 - 3.86% 2,628 Subordinated debt (a) 3.00 - 7.50% 2021 - 2029 1,654 3.00 - 7.50% 1,540 Total $ 27,501 $ 29,163 (a) Fixed rate. Total long-term debt maturing during the next five years is as follows: 2020 – $4.0 billion , 2021 – $5.9 billion , 2022 – $2.3 billion , 2023 – $5.5 billion and 2024 – $2.5 billion

Shareholders' equity

Shareholders' equity	12 Months Ended
Shareholders' equity	Dec. 31, 2019
Stockholders' Equity Note [Abstract]
Shareholders’ equity	Shareholders’ equity Common stock BNY Mellon has 3.5 billion authorized shares of common stock with a par value of $0.01 per share. At Dec. 31, 2019 , 900,683,038 shares of common stock were outstanding. Common stock repurchase program In June 2018, in connection with the Federal Reserve’s non-objection to our 2018 capital plan, BNY Mellon announced a share repurchase plan providing for the repurchase of up to $2.4 billion of common stock. The 2018 capital plan began in the third quarter of 2018 and continued through the second quarter of 2019. In December 2018, BNY Mellon announced that the Federal Reserve approved the repurchase of $830 million of additional common stock. Our Board of Directors approved the additional share repurchases, which were completed in the fourth quarter of 2018. These repurchases were in addition to the Company’s repurchase of $2.4 billion of common stock previously approved by the Board and announced in June 2018. In June 2019, in connection with the Federal Reserve’s non-objection to our 2019 capital plan, BNY Mellon announced a share repurchase plan providing for the repurchase of up to $3.94 billion of common stock starting in the third quarter of 2019 and continuing through the second quarter of 2020. This new share repurchase plan replaces all previously authorized share repurchase plans. Share repurchases may be executed through open market repurchases, in privately negotiated transactions or by other means, including through repurchase plans designed to comply with Rule 10b5-1 and other derivative, accelerated share repurchase and other structured transactions. In 2019 , we repurchased 69.3 million common shares at an average price of $48.01 per common share for a total of $3.3 billion . At Dec. 31, 2019 , the maximum dollar value of shares that may yet be purchased under the June 2019 program, including employee benefit plan repurchases, totaled $1.9 billion . Preferred stock BNY Mellon has 100 million authorized shares of preferred stock with a par value of $0.01 per share. The following table summarizes BNY Mellon’s preferred stock issued and outstanding at Dec. 31, 2019 and Dec. 31, 2018 . Preferred stock summary (a) Total shares issued and outstanding Carrying value (b) (in millions) Dec. 31, Dec. 31, Per annum dividend rate 2019 2018 2019 2018 Series A Greater of (i) three-month LIBOR plus 0.565% for the related distribution period; or (ii) 4.000% 5,001 5,001 $ 500 $ 500 Series C 5.2% 5,825 5,825 568 568 Series D 4.50% to but excluding June 20, 2023, then a floating rate equal to the three-month LIBOR plus 2.46% 5,000 5,000 494 494 Series E 4.95% to and including June 20, 2020, then a floating rate equal to the three-month LIBOR plus 3.42% 10,000 10,000 990 990 Series F 4.625% to and including Sept. 20, 2026, then a floating rate equal to the three-month LIBOR plus 3.131% 10,000 10,000 990 990 Total 35,826 35,826 $ 3,542 $ 3,542 (a) All outstanding preferred stock is noncumulative perpetual preferred stock with a liquidation preference of $100,000 per share. (b) The carrying value of the Series C, Series D, Series E and Series F preferred stock is recorded net of issuance costs. Holders of both the Series A and Series C preferred stock are entitled to receive dividends on each dividend payment date (March 20, June 20, September 20 and December 20 of each year), if declared by BNY Mellon’s Board of Directors. Holders of the Series D preferred stock are entitled to receive dividends, if declared by BNY Mellon’s Board of Directors, on each June 20 and December 20, to but excluding June 20, 2023; and on each March 20, June 20, September 20 and December 20, from and including June 20, 2023. Holders of the Series E preferred stock are entitled to receive dividends, if declared by BNY Mellon’s Board of Directors, on each June 20 and December 20, to and including June 20, 2020; and on each March 20, June 20, September 20 and December 20, from and including Sept. 20, 2020. Holders of the Series F preferred stock are entitled to receive dividends, if declared by BNY Mellon’s Board of Directors, on each March 20 and September 20, commencing March 20, 2017, to and including Sept. 20, 2026; and on each March 20, June 20, September 20 and December 20, commencing Dec. 20, 2026. BNY Mellon’s ability to declare or pay dividends on, or purchase, redeem or otherwise acquire, shares of our common stock or any of our shares that rank junior to the preferred stock as to the payment of dividends and/or the distribution of any assets on any liquidation, dissolution or winding-up of BNY Mellon will be prohibited, subject to certain restrictions, in the event that we do not declare and pay in full preferred dividends for the then current dividend period of the Series A preferred stock or the last preceding dividend period of the Series C, Series D, Series E and Series F preferred stock. All of the outstanding shares of the Series A preferred stock are owned by Mellon Capital IV, which will pass through any dividend on the Series A preferred stock to the holders of its Normal Preferred Capital Securities. All of the outstanding shares of the Series C, Series D, Series E and Series F preferred stock are held by the depositary of the depositary shares, which will pass through the applicable portion of any dividend on the Series C, Series D, Series E and Series F preferred stock to the holders of record of their respective depositary shares. The table below presents the dividends paid on our preferred stock. Preferred dividends paid (dollars in millions, except per share amounts) Depositary shares per share 2019 2018 2017 Per share Total dividend Per share Total dividend Per share Total dividend Series A 100 (a) $ 4,055.55 $ 20 $ 4,055.55 $ 20 $ 4,055.55 $ 20 Series C 4,000 5,200.00 31 5,200.00 31 5,200.00 31 Series D 100 4,500.00 22 4,500.00 22 4,500.00 22 Series E 100 4,950.00 50 4,950.00 50 4,950.00 50 Series F 100 4,625.00 46 4,625.00 46 5,254.51 52 Total $ 169 $ 169 $ 175 (a) Represents Normal Preferred Capital Securities. Temporary equity Temporary equity was $143 million at Dec. 31, 2019 and $129 million at Dec. 31, 2018 Capital adequacy Regulators establish certain levels of capital for bank holding companies and banks, including BNY Mellon and our bank subsidiaries, in accordance with established quantitative measurements. For the Parent to maintain its status as a financial holding company, our U.S. bank subsidiaries and BNY Mellon must, among other things, qualify as “well capitalized.” As of Dec. 31, 2019 and Dec. 31, 2018 , BNY Mellon and our U.S. bank subsidiaries were “well capitalized.” The regulatory capital ratios of our consolidated and largest bank subsidiary, The Bank of New York Mellon, are shown below. Consolidated and largest bank subsidiary regulatory capital ratios (a) Dec. 31, 2019 2018 Consolidated regulatory capital ratios: Common Equity Tier 1 (“CET1”) ratio 11.5 % 10.7 % Tier 1 capital ratio 13.7 12.8 Total capital ratio 14.4 13.6 Tier 1 leverage ratio 6.6 6.6 Supplementary leverage raio (“SLR”) (b) 6.1 6.0 The Bank of New York Mellon regulatory capital ratios: CET1 ratio 15.1 % 14.0 % Tier 1 capital ratio 15.1 14.3 Total capital ratio 15.2 14.7 Tier 1 leverage ratio 6.9 7.6 SLR (b) 6.4 6.8 (a) For our CET1, Tier 1 capital and Total capital ratios, our effective capital ratios under U.S. capital rules are the lower of the ratios as calculated under the Standardized and Advanced Approaches, which for the periods noted above was the Advanced Approaches. The Tier 1 leverage ratio is based on Tier 1 capital and quarterly average total assets. For BNY Mellon to qualify as “well capitalized,” its Tier 1 capital and Total capital ratios must be at least 6% and 10% , respectively. For The Bank of New York Mellon, our largest bank subsidiary, to qualify as “well capitalized,” its CET1, Tier 1 capital, Total capital and Tier 1 leverage ratios must be at least 6.5% , 8% , 10% and 5% , respectively. (b) The SLR is based on Tier 1 capital and total leverage exposure, which includes certain off-balance sheet exposures. For The Bank of New York Mellon to qualify as “well capitalized,” its SLR must be at least 6%. Failure to satisfy regulatory standards, including “well capitalized” status or capital adequacy rules more generally, could result in limitations on our activities and adversely affect our financial condition. If a bank holding company (“BHC”) such as BNY Mellon or bank such as The Bank of New York Mellon or BNY Mellon, N.A. fails to qualify as “adequately capitalized,” regulatory sanctions and limitations are imposed. The following table presents our capital components and risk-weighted assets (“RWAs”) determined under the Standardized and Advanced Approaches, the average assets used for leverage capital purposes and leverage exposure used for SLR purposes. Regulatory capital ratio components Dec. 31, (in millions) 2019 2018 CET1: Common shareholders’ equity $ 37,941 $ 37,096 Adjustments for: Goodwill and intangible assets (a) (18,725 ) (18,806 ) Net pension fund assets (272 ) (320 ) Equity method investments (311 ) (361 ) Deferred tax assets (46 ) (42 ) Other (47 ) — Total CET1 18,540 17,567 Other Tier 1 capital: Preferred stock 3,542 3,542 Other (86 ) (65 ) Total Tier 1 capital $ 21,996 $ 21,044 Tier 2 capital: Subordinated debt $ 1,248 $ 1,250 Allowance for credit losses 216 252 Other (11 ) (10 ) Total Tier 2 capital – Standardized Approach 1,453 1,492 Excess of expected credit losses — 65 Less: Allowance for credit losses 216 252 Total Tier 2 capital – Advanced Approaches $ 1,237 $ 1,305 Total capital: Standardized Approach $ 23,449 $ 22,536 Advanced Approaches $ 23,233 $ 22,349 Risk-weighted assets: Standardized Approach $ 148,695 $ 149,618 Advanced Approaches: Credit Risk $ 95,490 $ 92,917 Market Risk 4,020 3,454 Operational Risk 61,388 68,300 Total Advanced Approaches $ 160,898 $ 164,671 Average assets for Tier 1 leverage ratio $ 334,869 $ 319,007 Total leverage exposure for SLR $ 362,452 $ 347,943 (a) Reduced by deferred tax liabilities associated with intangible assets and tax deductible goodwill. The following table presents the amount of capital by which BNY Mellon and our largest bank subsidiary, The Bank of New York Mellon, exceeded the capital thresholds determined under U.S. capital rules. Capital above thresholds at Dec. 31, 2019 (in millions) Consolidated (a) The Bank of New York Mellon (b) CET1 $ 4,864 $ 11,045 Tier 1 capital 5,906 9,130 Total capital 3,925 6,623 Tier 1 leverage ratio 8,601 5,424 SLR 3,873 1,157 (a) Based on minimum required standards, with applicable buffers. (b) Based on well capitalized standards.

Variable interest entities and

Variable interest entities and securitization	12 Months Ended
Variable interest entities and securitization	Dec. 31, 2019
Securitizations And Variable Interest Entities Disclosure [Abstract]
Variable interest entities and securitization	Variable interest entities and securitization We have variable interests in VIEs, which include investments in retail, institutional and alternative investment funds, including CLO structures in which we provide asset management services, some of which are consolidated. We earn management fees from these funds as well as performance fees in certain funds and may also provide start-up capital for new funds. The funds are primarily financed by our customers’ investments in the funds’ equity or debt. Additionally, we invest in qualified affordable housing and renewable energy projects, which are designed to generate a return primarily through the realization of tax credits. The projects, which are structured as limited partnerships and limited liability companies, are also VIEs, but are not consolidated. The following table presents the incremental assets and liabilities included in the consolidated balance sheet as of Dec. 31, 2019 and Dec. 31, 2018 . The net assets of any consolidated VIE are solely available to settle the liabilities of the VIE and to settle any investors’ ownership liquidation requests, including any seed capital we invested in the VIE. Consolidated investments Dec. 31, 2019 Dec. 31, 2018 (in millions) Investment Management funds Securitization Total consolidated investments Investment Management funds Securitization Total consolidated investments Trading assets $ 229 $ 400 $ 629 $ 243 $ 400 $ 643 Other assets 16 — 16 220 — 220 Total assets $ 245 (a) $ 400 $ 645 $ 463 (b) $ 400 $ 863 Other liabilities $ 1 $ 387 $ 388 $ 2 $ 371 $ 373 Total liabilities $ 1 (a) $ 387 $ 388 $ 2 (b) $ 371 $ 373 Nonredeemable noncontrolling interests $ 102 (a) $ — $ 102 $ 101 (b) $ — $ 101 (a) Includes VMEs with assets of $50 million , liabilities of $1 million and nonredeemable noncontrolling interests of $1 million . (b) Includes VMEs with assets of $253 million , liabilities of $2 million and nonredeemable noncontrolling interests of less than $1 million . We have not provided financial or other support that was not otherwise contractually required to be provided to our VIEs. Additionally, creditors of any consolidated VIEs do not have any recourse to the general credit of BNY Mellon. Non-consolidated VIEs As of Dec. 31, 2019 and Dec. 31, 2018 , the following assets and liabilities related to the VIEs where we are not the primary beneficiary were included in our consolidated balance sheets and primarily related to accounting for our investments in qualified affordable housing and renewable energy projects. The maximum loss exposure indicated in the table below relates solely to our investments in, and unfunded commitments to, the VIEs. Non-consolidated VIEs Dec. 31, 2019 Dec. 31, 2018 (in millions) Assets Liabilities Maximum loss exposure Assets Liabilities Maximum loss exposure Securities - Available-for-sale (a) $ 208 $ — $ 208 $ 214 $ — $ 214 Other 2,400 422 2,822 2,450 479 2,929 (a) Includes investments in the Company’s sponsored CLOs.

Other comprehensive income (los

Other comprehensive income (loss)	12 Months Ended
Other comprehensive income (loss)	Dec. 31, 2019
Equity [Abstract]
Other comprehensive income (loss)	Other comprehensive income (loss) Components of other comprehensive income (loss) Year ended Dec. 31, 2019 2018 2017 (in millions) Pre-tax amount Tax (expense) benefit After-tax amount Pre-tax amount Tax (expense) benefit After-tax amount Pre-tax amount Tax (expense) benefit After-tax amount Foreign currency translation: Foreign currency translation adjustments arising during the period (a) $ 135 $ 16 $ 151 $ (157 ) $ (156 ) $ (313 ) $ 659 $ 194 $ 853 Total foreign currency translation 135 16 151 (157 ) (156 ) (313 ) 659 194 853 Unrealized gain (loss) on assets available-for-sale: Unrealized gain (loss) arising during period 680 (168 ) 512 (542 ) 126 (416 ) 237 (84 ) 153 Reclassification adjustment (b) 18 (4 ) 14 48 (12 ) 36 (3 ) — (3 ) Net unrealized gain (loss) on assets available-for-sale 698 (172 ) 526 (494 ) 114 (380 ) 234 (84 ) 150 Defined benefit plans: Prior service cost arising during the period (1 ) — (1 ) — — — — — — Net (loss) gain arising during the period (121 ) 34 (87 ) (244 ) 55 (189 ) 454 (112 ) 342 Foreign exchange adjustment — — — — — — 1 — 1 Amortization of prior service credit, net loss and initial obligation included in net periodic benefit cost (b) 52 (18 ) 34 93 (24 ) 69 100 (32 ) 68 Total defined benefit plans (70 ) 16 (54 ) (151 ) 31 (120 ) 555 (144 ) 411 Unrealized gain (loss) on cash flow hedges: Unrealized hedge gain (loss) arising during period 16 (7 ) 9 (15 ) 4 (11 ) 33 (9 ) 24 Reclassification of net loss (gain) to net income: Interest rate contracts - interest expense (7 ) 2 (5 ) — — — — — — Foreign exchange (“FX”) contracts - other revenue — — — (2 ) — (2 ) (8 ) 2 (6 ) FX contracts - trading revenue — — — — — — (2 ) 1 (1 ) FX contracts - staff expense (3 ) 2 (1 ) 4 (1 ) 3 (10 ) 2 (8 ) Total reclassifications to net income (10 ) 4 (6 ) 2 (1 ) 1 (20 ) 5 (15 ) Net unrealized gain (loss) on cash flow hedges 6 (3 ) 3 (13 ) 3 (10 ) 13 (4 ) 9 Total other comprehensive income (loss) $ 769 $ (143 ) $ 626 $ (815 ) $ (8 ) $ (823 ) $ 1,461 $ (38 ) $ 1,423 (a) Includes the impact of hedges of net investments in foreign subsidiaries. See Note 23 for additional information. (b) The reclassification adjustment related to the unrealized gain (loss) on assets available-for-sale is recorded as net securities gains on the consolidated income statement. The amortization of prior service credit, net loss and initial obligation included in net periodic benefit cost is recorded as staff expense on the consolidated income statement. Changes in accumulated other comprehensive income (loss) attributable to The Bank of New York Mellon Corporation shareholders Unrealized gain (loss) on assets available-for-sale Unrealized gain (loss) on cash flow hedges Total accumulated other comprehensive income (loss), net of tax (in millions) Foreign currency translation Pensions Other post-retirement benefits 2016 ending balance $ (2,451 ) $ (1,306 ) $ (42 ) $ 36 $ (2 ) $ (3,765 ) Change in 2017 838 419 (8 ) 150 9 1,408 2017 ending balance $ (1,613 ) $ (887 ) $ (50 ) $ 186 $ 7 $ (2,357 ) Adjustment for the cumulative effect of applying ASU 2017-12 for derivatives and hedging — — — (2 ) — (2 ) Adjusted balance at Jan. 1, 2018 (1,613 ) (887 ) (50 ) 184 7 (2,359 ) Change in 2018 (302 ) (118 ) (2 ) (380 ) (10 ) (812 ) 2018 ending balance $ (1,915 ) $ (1,005 ) $ (52 ) $ (196 ) $ (3 ) $ (3,171 ) Adjustment for the cumulative effect of applying ASU 2018-02 for income taxes 115 (213 ) — 6 2 (90 ) Adjusted balance at Jan. 1, 2019 (1,800 ) (1,218 ) (52 ) (190 ) (1 ) (3,261 ) Change in 2019 148 (57 ) 3 526 3 623 2019 ending balance $ (1,652 ) $ (1,275 ) $ (49 ) $ 336 $ 2 $ (2,638 )

Stock-based compensation

Stock-based compensation	12 Months Ended
Stock-based compensation	Dec. 31, 2019
Share-based Payment Arrangement [Abstract]
Stock-based compensation	Stock-based compensation Our Long-Term Incentive Plans provide for the issuance of restricted stock, restricted stock units (“RSUs”) and other stock-based awards, including options, to employees and directors of BNY Mellon. At Dec. 31, 2019 , under the Long-Term Incentive Plan approved in April 2019, we may issue 35,660,228 new stock-based awards, all of which may be issued as restricted stock or RSUs. Stock-based compensation expense related to retirement eligibility vesting totaled $84 million in 2019 , $93 million in 2018 and $109 million in 2017 . Restricted stock, RSUs and Performance share units Restricted stock and RSUs are granted under our long-term incentive plans at no cost to the recipient. These awards are subject to forfeiture until certain restrictions have lapsed, including continued employment, for a specified period. The recipient of a share of restricted stock is entitled to voting rights and generally is entitled to dividends on the common stock. An RSU entitles the recipient to receive a share of common stock after the applicable restrictions lapse. The recipient generally is entitled to receive cash payments equivalent to any dividends paid on the underlying common stock during the period the RSU is outstanding but does not receive voting rights. The fair value of restricted stock and RSUs is equal to the fair market value of our common stock on the date of grant. The expense is recognized over the vesting period, which is generally zero to four years . The total compensation expense recognized for restricted stock and RSUs was $222 million in 2019 , $270 million in 2018 and $273 million in 2017 . The total income tax benefit recognized in the consolidated income statement related to compensation costs was $53 million in 2019 , $65 million in 2018 and $66 million in 2017 . BNY Mellon’s Executive Committee members were granted a target award of 576,855 performance share units (“PSUs”) in 2019 , 362,798 in 2018 and 793,847 in 2017 . The 2019 and 2018 awards cliff vest in 3 years with the number of shares that vest determined based on a payout table that references performance conditions related to average revenue growth and average operating margin, both as adjusted and subject to Human Resources and Compensation Committee discretion. These awards are classified as equity and marked-to-market to earnings as a result of this discretion. The 2017 awards cliff vest in 3 years with the number of shares that vest determined based on a payout table that references changes in the interest rate environment since the grant date along with a performance condition that references operating earnings per share achieved in 2019 with the potential of a risk modifier based on the extent of growth in RWAs and subject to Human Resources and Compensation Committee discretion. These awards are liability classified as they contain an interest rate condition that is not linked to performance or market and marked-to-market to earnings as a result of the discretion. The following table summarizes our non-vested PSU, restricted stock and RSU activity for 2019 . Non-vested PSU, restricted stock and RSU activity Number of shares Weighted-average fair value at grant date Non-vested PSUs, restricted stock and RSUs at Dec. 31, 2018 14,211,712 $ 49.43 Granted 6,179,808 51.59 Vested (6,201,276 ) 43.21 Forfeited (1,456,946 ) 49.74 Non-vested PSUs, restricted stock and RSUs at Dec. 31, 2019 12,733,298 $ 50.77 As of Dec. 31, 2019 , $208 million of total unrecognized compensation costs related to non-vested PSUs, restricted stock and RSUs is expected to be recognized over a weighted-average period of 2.2 years . The total fair value of restricted stock, RSUs and PSUs that vested was $278 million in 2019 , $289 million in 2018 and $260 million in 2017 . The actual excess tax benefit realized for the tax deductions from shares vested totaled $11 million in 2019 , $26 million in 2018 and $34 million in 2017 . The tax benefits were recognized in the provision for income taxes. Subsidiary Long-Term Incentive Plans BNY Mellon also has several subsidiary Long-Term Incentive Plans which have issued restricted subsidiary shares to certain employees. These share awards are subject to forfeiture until certain restrictions have lapsed, including continued employment for a specified period of time. The shares are generally non-voting and non-dividend paying. Once the restrictions lapse, which generally occurs in three to five years , the shares can only be sold, at the option of the employee, to BNY Mellon at a price based generally on the fair value of the subsidiary at the time of repurchase. In certain instances BNY Mellon has an election to call the shares. Stock options Our Long-Term Incentive Plans provide for the issuance of stock options at fair market value at the date of grant to officers and employees of BNY Mellon. Generally, each option granted is exercisable between one and 10 years from the date of grant. No stock options were granted in 2019, 2018 and 2017. Compensation costs that were charged against income were less than $1 million in 2019 , 2018 and 2017 . The income tax benefit recognized in the consolidated income statement related to compensation costs was less than $1 million in 2019 , 2018 and 2017 . A summary of the status of our options as of Dec. 31, 2019 , and changes during the year, is presented below: Stock option activity Shares subject to option Weighted-average exercise price Weighted-average remaining contractual term (in years) Balance at Dec. 31, 2018 6,714,283 $ 25.67 2.0 Granted — — Exercised (2,543,235 ) 25.14 Canceled/Expired (27,473 ) 21.93 Balance at Dec. 31, 2019 4,143,575 $ 26.03 1.4 Vested and expected to vest at Dec. 31, 2019 4,143,575 26.03 1.4 Exercisable at Dec. 31, 2019 4,143,575 26.03 1.4 Stock options outstanding at Dec. 31, 2019 Options outstanding Options exercisable (a) Range of exercise prices Outstanding Weighted-average remaining contractual life (in years) Weighted-average exercise price Exercisable Weighted-average exercise price $ 18 to 31 4,143,575 1.4 $ 26.03 4,143,575 $ 26.03 (a) At Dec. 31, 2018 and Dec. 31, 2017 , 6,714,283 and 9,302,140 options were exercisable at a weighted-average price per common share of $25.67 and $27.27 , respectively. Aggregate intrinsic value of options (in millions) 2019 2018 2017 Outstanding at Dec. 31, $ 101 $ 144 $ 247 Exercisable at Dec. 31, $ 101 $ 144 $ 247 The total intrinsic value of options exercised was $63 million in 2019 , $61 million in 2018 and $159 million in 2017 . Cash received from option exercises totaled $65 million in 2019 , $80 million in 2018 and $431 million in 2017 . The actual excess tax benefit realized for the tax deductions from options exercised totaled $10 million in 2019 , $10 million in 2018 and $16 million in 2017 . The tax benefits were recognized in the provision for income taxes.

Employee benefit plans Employee

Employee benefit plans Employee benefit plans	12 Months Ended
Employee benefit plans Employee benefit plans	Dec. 31, 2019
Defined Benefit Plan [Abstract]
Employee benefit plans	Employee benefit plans BNY Mellon has defined benefit and/or defined contribution retirement plans and other post-retirement plans providing healthcare benefits. The defined benefit pension plans cover approximately 11,200 U.S. employees and approximately 13,100 non-U.S. employees. BNY Mellon has one qualified and several non-qualified defined benefit pension plans in the U.S. and several pension plans overseas. Effective June 30, 2015, the benefit accruals under the U.S. qualified and non-qualified defined benefit plans were frozen. This change resulted in no additional benefits being earned by participants in those plans based on service or pay after June 30, 2015. These plans were previously closed to new participants effective Dec. 31, 2010, at which time a non-elective contribution was added to the Company’s defined contribution plan for employees not eligible to join the pension plan. Employees previously participating in the pension plan received this non-elective contribution starting July 1, 2015. Effective Dec. 31, 2018, the benefit accruals were frozen under our largest foreign plan, which covers certain UK employees. This change results in no additional benefits being earned by participants in that plan based on service or pay after Dec. 31, 2018. Most UK employees currently earn benefits only on a defined contribution basis. UK employees impacted by the pension plan freeze began earning benefits on a defined contribution basis on Jan. 1, 2019. Pension and post-retirement healthcare plans The following tables report the combined data for our domestic and foreign defined benefit pension and post-retirement healthcare plans. Pension Benefits Healthcare Benefits Domestic Foreign Domestic Foreign (dollars in millions) 2019 2018 2019 2018 2019 2018 2019 2018 Weighted-average assumptions used to determine benefit obligations Discount rate 3.45 % 4.45 % 2.02 % 2.95 % 3.45 % 4.45 % 2.10 % 3.10 % Rate of compensation increase N/A N/A 3.19 2.98 3.00 3.00 N/A N/A Cash balance interest crediting rate 4.00 4.00 N/A N/A N/A N/A N/A N/A Change in benefit obligation (a) Benefit obligation at beginning of period $ (4,123 ) $ (4,405 ) $ (1,104 ) $ (1,322 ) $ (149 ) $ (175 ) $ (5 ) $ (4 ) Service cost — — (11 ) (28 ) (1 ) (1 ) — — Interest cost (178 ) (169 ) (32 ) (32 ) (6 ) (7 ) — — Amendments — — (1 ) — — — — — Actuarial gain (loss) (585 ) 219 (264 ) 173 (1 ) 22 (1 ) (1 ) Curtailments — — — 11 — — — — Benefits paid 227 232 40 25 12 12 — — Foreign exchange adjustment N/A N/A (22 ) 69 N/A N/A — — Benefit obligation at end of period (4,659 ) (4,123 ) (1,394 ) (1,104 ) (145 ) (149 ) (6 ) (5 ) Change in fair value of plan assets Fair value at beginning of period 5,040 5,496 1,316 1,393 99 107 — — Actual return on plan assets 910 (257 ) 191 1 18 (8 ) — — Employer contributions 15 33 30 22 12 12 — — Benefit payments (227 ) (232 ) (40 ) (25 ) (12 ) (12 ) — — Foreign exchange adjustment N/A N/A 32 (75 ) N/A N/A — — Fair value at end of period 5,738 5,040 1,529 1,316 117 99 — — Funded status at end of period $ 1,079 $ 917 $ 135 $ 212 $ (28 ) $ (50 ) $ (6 ) $ (5 ) Amounts recognized in accumulated other comprehensive loss (income) consist of: Net loss $ 1,557 $ 1,598 $ 221 $ 105 $ 70 $ 84 $ 1 $ — Prior service cost (credit) — — 2 1 (33 ) (40 ) — — Total loss (before tax effects) $ 1,557 $ 1,598 $ 223 $ 106 $ 37 $ 44 $ 1 $ — (a) The benefit obligation for pension benefits is the projected benefit obligation, and for healthcare benefits, it is the accumulated benefit obligation. A number of key assumptions and measurement date values determine pension expense. The key elements include the long-term rate of return on plan assets, the discount rate, the market-related value of plan assets and the price used to value stock in the Employee Stock Ownership Plan (“ESOP”). The discount rate for U.S. pension plans was determined after reviewing equivalent rates obtained by discounting the pension plans’ expected cash flows using various high-quality, long-term corporate bond yield curves. We also reviewed the results of several models that matched bonds to our pension cash flows. After reviewing the various indices and models, we selected a discount rate of 3.45% as of Dec. 31, 2019 . The discount rates for foreign pension plans are based on high-quality corporate bond rates in countries that have an active corporate bond market. In those countries with no active corporate bond market, discount rates are based on local government bond rates plus a credit spread. Actuarial losses on the benefit obligation for the domestic and foreign pension plans in 2019 are primarily attributable to decreases in discount rates. Actuarial gains on the benefit obligation for the domestic and foreign pension plans in 2018 are primarily attributable to increases in discount rates. Net periodic benefit (credit) cost Pension Benefits Healthcare Benefits Domestic Foreign Domestic Foreign (dollars in millions) 2019 2018 2017 2019 2018 2017 2019 2018 2017 2019 2018 2017 Weighted-average assumptions as of Jan. 1: Market-related value of plan assets $ 5,304 $ 5,238 $ 5,026 $ 1,277 $ 1,266 $ 994 $ 111 $ 108 $ 102 N/A N/A N/A Discount rate 4.45 % 3.97 % 4.35 % 2.95 % 2.45 % 2.53 % 4.45 % 3.97 % 4.35 % 3.10 % 2.50 % 2.60 % Expected rate of return on plan assets 6.500 6.625 6.625 3.54 4.56 4.61 6.500 6.625 6.625 N/A N/A N/A Rate of compensation increase N/A N/A N/A 2.98 3.02 3.60 3.00 3.00 3.00 N/A N/A N/A Cash balance interest crediting rate 4.00 4.00 4.00 N/A N/A N/A N/A N/A N/A N/A N/A N/A Components of net periodic benefit (credit) cost : Service cost $ — $ — $ — $ 11 $ 28 $ 31 $ 1 $ 1 $ 1 $ — $ — $ — Interest cost 178 169 180 32 32 33 6 7 7 — — — Expected return on assets (337 ) (339 ) (325 ) (45 ) (57 ) (50 ) (7 ) (8 ) (7 ) — — — Amortization of: Prior service cost (credit) — — — — — — (7 ) (9 ) (10 ) — — — Net actuarial loss 53 68 67 2 22 35 4 7 6 — — — Settlement loss — 5 2 — — — — — — — — — Net periodic benefit (credit) cost $ (106 ) $ (97 ) $ (76 ) $ — $ 25 $ 49 $ (3 ) $ (2 ) $ (3 ) $ — $ — $ — Changes in other comprehensive loss (income) in 2019 Pension Benefits Healthcare Benefits (in millions) Domestic Foreign Domestic Foreign Net loss (gain) arising during period $ 12 $ 118 $ (10 ) $ 1 Recognition of prior years’ net (loss) (53 ) (2 ) (4 ) — Prior service cost arising during the period — 1 — — Recognition of prior years’ service credit — — 7 — Total recognized in other comprehensive (income) loss (before tax effects) $ (41 ) $ 117 $ (7 ) $ 1 Domestic Foreign (in millions) 2019 2018 2019 2018 Pension benefits: Prepaid benefit cost $ 1,249 $ 1,077 $ 222 $ 280 Accrued benefit cost (170 ) (160 ) (87 ) (68 ) Total pension benefits $ 1,079 $ 917 $ 135 $ 212 Healthcare benefits: Accrued benefit cost $ (28 ) $ (50 ) $ (6 ) $ (5 ) Total healthcare benefits $ (28 ) $ (50 ) $ (6 ) $ (5 ) The accumulated benefit obligation for all defined benefit plans was $6.0 billion at Dec. 31, 2019 and $5.2 billion at Dec. 31, 2018 . Plans with obligations in excess of plan assets Pension Benefits Healthcare Benefits Domestic Foreign Domestic Foreign (in millions) 2019 2018 2019 2018 2019 2018 2019 2018 Projected benefit obligation $ 170 $ 160 $ 384 $ 245 N/A N/A N/A N/A Fair value of plan assets — — 297 177 N/A N/A N/A N/A Accumulated benefit obligation 170 160 164 67 85 80 6 5 Fair value of plan assets — — 114 27 — — — — Assumed healthcare cost trend The assumed healthcare cost trend rate used in determining domestic benefit expense for 2020 is 6.40% , decreasing to 4.75% in 2024 for pre-Medicare costs and 5.35% decreasing to 4.75% in 2024 for Medicare costs. This projection is based on various economic models that forecast a decreasing growth rate of healthcare expenses over time. The underlying assumption is that healthcare expense growth cannot outpace gross national product growth indefinitely, and over time a lower equilibrium growth rate will be achieved. In addition to the assumed health care cost trend rate, a separate adjustment to projected 2021 costs is assumed due to the repeal of the Health Insurance Tax. The following benefit payments for the pension and healthcare plans, which reflect expected future service as appropriate, are expected to be paid over the next 10 years: Expected benefit payments (in millions) Domestic Foreign Pension benefits: Year 2020 $ 254 $ 20 2021 265 20 2022 260 21 2023 266 24 2024 275 24 2025-2029 1,333 144 Total pension benefits $ 2,653 $ 253 Healthcare benefits: Year 2020 $ 12 $ — 2021 10 — 2022 10 — 2023 10 — 2024 9 — 2025-2029 42 1 Total healthcare benefits $ 93 $ 1 Plan contributions We expect to make cash contributions to fund our defined benefit pension plans in 2020 of $15 million for the domestic plans and $11 million for the foreign plans. We expect to make cash contributions to fund our post-retirement healthcare plans in 2020 of $12 million for the domestic plans and less than $1 million for the foreign plans. Investment strategy and asset allocation We are responsible for the administration of various employee pension and healthcare post-retirement benefits plans, both domestically and internationally. The domestic plans are administered by BNY Mellon’s Benefits Administration Committee, a named fiduciary. Subject to the following, at all relevant times, BNY Mellon’s Benefits Investment Committee, another named fiduciary to the domestic plans, is responsible for the investment of plan assets. The Benefits Investment Committee’s responsibilities include the investment of all domestic defined benefit plan assets, as well as the determination of investment options offered to participants in all domestic defined contribution plans. The Benefits Investment Committee conducts periodic reviews of investment performance, asset allocation and investment manager suitability. In addition, the Benefits Investment Committee has oversight of the Regional Governance Committees for the foreign defined benefit plans. Our investment objective for U.S. and foreign plans is to maximize total return while maintaining a broadly diversified portfolio for the primary purpose of satisfying obligations for future benefit payments. Our plans are primarily invested in fixed income and equity securities. In general, for the domestic plan’s portfolio, fixed income securities can range from 40% to 80% of plan assets, equity securities and alternative investments can range from 20% to 60% of plan assets and cash equivalents can be held in amounts ranging from 0% to 10% of plan assets. Actual asset allocation within the approved ranges varies from time to time based on economic conditions (both current and forecast), the timing of transitional reallocations and the advice of professional advisors. Our pension assets were invested as follows: Asset allocations Domestic Foreign 2019 2018 2019 2018 Fixed income 56 % 45 % 80 % 36 % Equities 42 52 8 48 Alternative investments 2 2 10 9 Private equities — 1 — — Real estate — — — 4 Cash — — 2 3 Total pension benefits 100 % 100 % 100 % 100 % We held no The Bank of New York Mellon Corporation stock in our pension plans at Dec. 31, 2019 and Dec. 31, 2018 . Assets of the U.S. post-retirement healthcare plan are invested in an insurance contract. Fair value measurement of plan assets In accordance with ASC 715, Compensation - Retirement Benefits , we have established a three-level hierarchy for fair value measurements of its pension plan assets based upon the transparency of inputs to the valuation of an asset as of the measurement date. The valuation hierarchy is consistent with guidance in ASC 820, Fair Value Measurement , which is detailed in Note 20. The following is a description of the valuation methodologies used for assets measured at fair value, as well as the general classification of such assets pursuant to the valuation hierarchy. Cash and currency This category consists primarily of foreign currency balances and is included in Level 1 of the valuation hierarchy. Foreign currency is translated monthly based on current exchange rates. Common and preferred stock and mutual funds These investments include equities and mutual funds and are valued at the closing price reported in the active market in which the individual securities are traded, if available. Common and preferred stock and mutual funds are included in Level 1 of the valuation hierarchy. Derivative instruments Our derivative positions are valued using internally developed models that use as their basis readily observable market parameters, and we classify them in Level 2 of the valuation hierarchy. Such derivative financial instruments include equity puts and calls. Collective trust funds Collective trust funds include commingled and U.S. equity funds that have no readily available market quotations. The fair value of the funds is based on the securities in the portfolio, which typically are the amount that the fund might reasonably expect to receive for the securities upon a sale. These funds are valued using observable inputs on either a daily or monthly basis. Collective trust funds are included in Level 2 of the valuation hierarchy. Fixed-income investments Fixed-income investments include U.S. Treasury securities, U.S. government agencies, sovereign government obligations, U.S. corporate bonds and foreign corporate debt funds. U.S. Treasury securities are valued at the closing price reported in the active market in which the individual security is traded and included as Level 1 of the valuation hierarchy. U.S. government agencies, sovereign government obligations, U.S. corporate bonds and foreign corporate debt funds are valued based on quoted prices for comparable securities with similar yields and credit ratings. When quoted prices are not available for identical or similar bonds, the bonds are valued using discounted cash flows that maximize observable inputs, such as current yields of similar instruments, but includes adjustments for certain risks that may not be observable, such as credit and liquidity risks. U.S. government agencies, sovereign government obligations, U.S. corporate bonds and foreign corporate debt funds are primarily included in Level 2 of the valuation hierarchy. Other assets measured at NAV Other assets measured at NAV include funds of funds and venture capital and partnership interests, property funds and other funds. There are no readily available market quotations for these funds. The fair value of the funds of funds is based on NAVs of the funds in the portfolio, which reflects the value of the underlying securities. The fair value of the underlying securities is typically the amount that the fund might reasonably expect to receive upon selling those hard to value or illiquid securities within the portfolios. These funds are either valued on a daily or monthly basis. The fair value of the venture capital and partnership interests is based on the pension plan’s ownership percentage of the fair value of the underlying funds as provided by the fund managers. These funds are typically valued on a quarterly basis. The pension plan’s venture capital and partnership interests are valued at NAV as a practical expedient for fair value. The following tables present the fair value of each major category of plan assets as of Dec. 31, 2019 and Dec. 31, 2018 , by captions and by ASC 820, Fair Value Measurement, valuation hierarchy. Plan assets measured at fair value on a recurring basis— domestic plans at Dec. 31, 2019 (in millions) Level 1 Level 2 Level 3 Total fair value Common and preferred stock: U.S. equity $ 1,638 $ — $ — $ 1,638 Non-U.S. equity 195 — — 195 Derivatives — (130 ) — (130 ) Collective trust funds: Commingled — 1,982 — 1,982 U.S. equity — 688 — 688 Fixed income: U.S. Treasury securities 362 — — 362 U.S. government agencies — 7 — 7 Sovereign government obligations 3 — — 3 U.S. corporate bonds — 814 — 814 Other — 15 — 15 Mutual funds 3 — — 3 Total domestic plan assets in the fair value hierarchy $ 2,201 $ 3,376 $ — $ 5,577 Other assets measured at NAV: Funds of funds 134 Venture capital and partnership interests 27 Total domestic plan assets, at fair value $ 5,738 Plan assets measured at fair value on a recurring basis— foreign plans at Dec. 31, 2019 (in millions) Level 1 Level 2 Level 3 Total fair value Equity funds $ — $ 129 $ — $ 129 Sovereign/government obligation funds — 130 — 130 Corporate debt funds — 1,091 — 1,091 Cash and currency 20 — — 20 Total foreign plan assets in the fair value hierarchy $ 20 $ 1,350 $ — $ 1,370 Other assets measured at NAV 159 Total foreign plan assets, at fair value $ 1,529 Plan assets measured at fair value on a recurring basis— domestic plans at Dec. 31, 2018 (in millions) Level 1 Level 2 Level 3 Total fair value Common and preferred stock: U.S. equity $ 1,514 $ — $ — $ 1,514 Non-U.S. equity 160 — — 160 Collective trust funds: Commingled — 435 — 435 U.S. equity — 934 — 934 Fixed income: U.S. Treasury securities 630 — — 630 U.S. government agencies — 44 — 44 Sovereign government obligations 3 5 — 8 U.S. corporate bonds — 972 — 972 Other — 69 — 69 Mutual funds 114 — — 114 Total domestic plan assets in the fair value hierarchy $ 2,421 $ 2,459 $ — $ 4,880 Other assets measured at NAV: Funds of funds 130 Venture capital and partnership interests 30 Total domestic plan assets, at fair value $ 5,040 Plan assets measured at fair value on a recurring basis— foreign plans at Dec. 31, 2018 (in millions) Level 1 Level 2 Level 3 Total fair value Equity funds $ — $ 194 $ — $ 194 Sovereign/government obligation funds — 126 — 126 Corporate debt funds — 418 — 418 Cash and currency 356 — — 356 Total foreign plan assets in the fair value hierarchy $ 356 $ 738 $ — $ 1,094 Other assets measured at NAV 222 Total foreign plan assets, at fair value $ 1,316 Funds of funds and venture capital and partnership interests valued using NAV per share Certain pension and post-retirement plan assets are invested in funds of funds, venture capital and partnership interests, property funds and other contracts valued using NAV. The funds of funds investments are redeemable at NAV under agreements with the funds of funds managers. Assets valued using NAV at Dec. 31, 2019 (dollars in millions) Fair value Unfunded commitments Redemption frequency Redemption notice period Funds of funds (a) $ 136 $ — Monthly 30-45 days Venture capital and partnership interests (b) 158 — N/A N/A Property funds (c) 4 — Monthly 0-90 days Other contracts (d) 22 — N/A N/A Total $ 320 $ — Assets valued using NAV at Dec. 31, 2018 (dollars in millions) Fair value Unfunded commitments Redemption frequency Redemption notice period Funds of funds (a) $ 147 $ — Monthly 30-45 days Venture capital and partnership interests (b) 148 — N/A N/A Property funds (c) 52 — Monthly 0-90 days Corporate debt 19 — N/A N/A Other contracts (d) 16 — N/A N/A Total $ 382 $ — (a) Funds of funds include multi-strategy hedge funds that utilize investment strategies that invest over both long-term investment and short-term investment horizons. (b) Venture capital and partnership interests do not have redemption rights. Distributions from such funds will be received as the underlying investments are liquidated. (c) Property funds include funds invested in regional real estate vehicles that hold direct interest in real estate properties. (d) Other contracts include assets invested in pooled accounts at insurance companies that are privately valued by the asset manager. Defined contribution plans We sponsor defined contribution plans in the U.S. and in certain non-U.S. locations, all of which are administered in accordance with local laws. The most significant defined contribution plan is The Bank of New York Mellon Corporation 401(k) Savings Plan sponsored by the Company in the U.S. and covers substantially all U.S. employees. Under The Bank of New York Mellon Corporation 401(k) Savings Plan, the Company matched 100% of the first 4% of an employee’s eligible base pay plus 50% of the next 2% of eligible pay contributed by the participant for a maximum matching contribution of 5% for 2019, 2018 and 2017, subject to statutory limits. In addition, annual non-elective contribution equal to 2% of eligible base pay were also made during 2017-2019. At Dec. 31, 2019 and Dec. 31, 2018 , The Bank of New York Mellon Corporation 401(k) Savings Plan owned 11.5 million and 12.7 million shares of our common stock, respectively. The fair value of total assets was $7.4 billion at Dec. 31, 2019 and $6.2 billion at Dec. 31, 2018 . We recorded expenses of $244 million in 2019 , $244 million in 2018 and $232 million in 2017 primarily for contributions to our defined contribution plans. We also have an ESOP covering certain domestic full-time employees hired on or before July 1, 2008. The ESOP works in conjunction with the defined benefit pension plan. Employees are entitled to the higher of their benefit under the ESOP or such defined benefit pension plan at retirement. Benefits payable under the defined benefit pension plan are offset by the equivalent value of benefits earned under the ESOP. At Dec. 31, 2019 and Dec. 31, 2018 , the ESOP owned 4.6 million and 5.0 million shares of our common stock, respectively. The fair value of total ESOP assets was $235 million at Dec. 31, 2019 and $236 million at Dec. 31, 2018 . The Company is not permitted to make contributions to the ESOP. The Benefits Investment Committee appointed Fiduciary Counselors, Inc. to serve as the independent fiduciary to (i) make all fiduciary decisions related to the continued prudence of offering the common stock of BNY Mellon or its affiliates as an investment option under the plans, other than plan sponsor decisions, and (ii) select and monitor any actively or passively managed investments of BNY Mellon or its affiliates to be offered to participants as investment options under the plans, excluding self-directed accounts.

Company financial information (

Company financial information (Parent Corporation)	12 Months Ended
Company financial information (Parent Corporation)	Dec. 31, 2019
Condensed Financial Information Disclosure [Abstract]
Company financial information (Parent Corporation)	Company financial information (Parent Corporation) In connection with our single point of entry resolution strategy, we have established an intermediate holding company (“IHC”) to facilitate the provision of capital and liquidity resources to certain key subsidiaries in the event of material financial distress or failure. In 2017, we entered into a binding support agreement with those key subsidiaries and other related entities that requires the IHC to provide that support. The support agreement requires the Parent to transfer cash and other liquid financial assets to the IHC, subject to certain amounts retained by the Parent to meet its near-term cash needs. The Parent’s and the IHC’s obligations under the support agreement are secured. The IHC has provided the Parent with a committed line of credit that allows the Parent to draw funds necessary to service near-term obligations. As a result, during business-as-usual circumstances, the Parent is expected to continue to have access to the funds necessary to pay dividends, repurchase common stock, service its debt and satisfy its other obligations. If our projected liquidity resources deteriorate so severely that resolution of the Parent becomes imminent, the committed line of credit the IHC provided to the Parent will automatically terminate, with all amounts outstanding becoming due and payable, and the support agreement will require the Parent to transfer most of its remaining assets (other than stock in subsidiaries and a cash reserve to fund bankruptcy expenses) to the IHC. As a result, during a period of severe financial stress, the Parent could become unable to meet its debt and payment obligations (including with respect to its securities), causing the Parent to seek protection under bankruptcy laws earlier than it otherwise would have. Our bank subsidiaries are subject to dividend limitations under the Federal Reserve Act, as well as national and state banking laws. Under these statutes, prior regulatory consent is required for dividends in any year that would exceed the bank’s net profits for such year combined with retained net profits for the prior two years. Additionally, such bank subsidiaries may not declare dividends in excess of net profits on hand, as defined, after deducting the amount by which the principal amount of all loans, on which interest is past due for a period of six months or more, exceeds the allowance for credit losses. The payment of dividends also is limited by minimum capital requirements imposed on banks. As of Dec. 31, 2019 , our bank subsidiaries exceeded these minimum requirements. Subsequent to Dec. 31, 2019 , our U.S. bank subsidiaries could declare dividends to the Parent of approximately $1.1 billion , without the need for a regulatory waiver. In addition, at Dec. 31, 2019 , non-bank subsidiaries of the Parent had liquid assets of approximately $1.8 billion . The bank subsidiaries declared dividends of $3.2 billion in 2019 , $3.8 billion in 2018 and $1.3 billion in 2017 . The Federal Reserve and the Office of the Comptroller of the Currency have issued additional guidelines that require BHCs and national banks to continually evaluate the level of cash dividends in relation to their respective operating income, capital needs, asset quality and overall financial condition. The Federal Reserve policy with respect to the payment of cash dividends by BHCs provides that, as a matter of prudent banking, a BHC should not maintain a rate of cash dividends unless its net income available to common shareholders has been sufficient to fully fund the dividends, and the prospective rate of earnings retention appears to be consistent with the holding company’s capital needs, asset quality and overall financial condition. The Federal Reserve can also prohibit a dividend if payment would constitute an unsafe or unsound banking practice. Any increase in BNY Mellon’s ongoing quarterly dividends would require approval from the Federal Reserve. BNY Mellon and other affected BHCs may pay dividends, repurchase stock, and make other capital distributions only in accordance with a capital plan that has been reviewed by the Federal Reserve and as to which the Federal Reserve has not objected. The Federal Reserve may object to a capital plan if the plan does not show that the covered BHC will meet, for each quarter throughout the nine-quarter planning horizon covered by the capital plan, all minimum regulatory capital ratios under applicable capital rules as in effect for that quarter on a pro forma basis under the base case and stressed scenarios (including a severely adverse scenario provided by the Federal Reserve). The capital plan rules also stipulate that a covered BHC may not make a capital distribution unless after giving effect to the distribution it will meet all minimum regulatory capital ratios. As part of this process, BNY Mellon also provides the Federal Reserve with estimates of the composition and levels of regulatory capital, RWAs and other measures under an identified scenario. In June 2019, in connection with the Federal Reserve’s non-objection to our 2019 capital plan, we announced a share repurchase plan providing for the repurchase of up to $3.94 billion of common stock starting in the third quarter of 2019 and continuing through the second quarter of 2020. This new share repurchase plan replaces all previously authorized share repurchase plans. The Federal Reserve Act limits, and requires collateral for, extensions of credit by our insured subsidiary banks to BNY Mellon and certain of its non-bank affiliates. Also, there are restrictions on the amounts of investments by such banks in stock and other securities of BNY Mellon and such affiliates, and restrictions on the acceptance of their securities as collateral for loans by such banks. Extensions of credit by the banks to each of our affiliates are limited to 10% of such bank’s regulatory capital, and in the aggregate for BNY Mellon and all such affiliates to 20% , and collateral must be between 100% and 130% of the amount of the credit, depending on the type of collateral. Our insured subsidiary banks are required to maintain reserve balances with Federal Reserve Banks under the Federal Reserve Act and Regulation D. Required balances averaged $6.8 billion and $6.1 billion for the years 2019 and 2018 , respectively. In the event of impairment of the capital stock of one of the Parent’s national banks or The Bank of New York Mellon, the Parent, as the banks’ stockholder, could be required to pay such deficiency. The Parent guarantees the debt issued by Mellon Funding Corporation, a wholly owned financing subsidiary of the Company. The Parent also guarantees committed and uncommitted lines of credit of Pershing LLC and Pershing Limited subsidiaries. The Parent guarantees described above are full and unconditional and contain the standard provisions relating to parent guarantees of subsidiary debt. Additionally, the Parent guarantees or indemnifies obligations of its consolidated subsidiaries as needed. Generally, there are no stated notional amounts included in these indemnifications and the contingencies triggering the obligation for indemnification are not expected to occur. As a result, we are unable to develop an estimate of the maximum payout under these indemnifications. However, we believe the possibility is remote that we will have to make any material payment under these guarantees and indemnifications. The condensed financial statements of the Parent include the accounts of the Parent; Mellon Funding Corporation and MIPA, LLC, a single-member limited liability company, created to hold and administer corporate-owned life insurance. MIPA, LLC was dissolved in 2019 via a liquidating dividend of its assets to the Parent. Financial data for the Parent, the financing subsidiary and the single-member limited liability company are combined for financial reporting purposes because of the limited function of these entities and the unconditional guarantee by BNY Mellon of their obligations. The Parent’s condensed financial statements are as follows: Condensed Income Statement—The Bank of New York Mellon Corporation (Parent Corporation ) Year ended Dec. 31, (in millions) 2019 2018 2017 Dividends from bank subsidiaries $ 3,209 $ 3,874 $ 1,405 Dividends from nonbank subsidiaries 2,075 1,869 382 Interest revenue from bank subsidiaries 4 13 25 Interest revenue from nonbank subsidiaries 153 200 171 (Loss) gain on securities held for sale (11 ) 1 — Other revenue 39 36 67 Total revenue 5,469 5,993 2,050 Interest expense (including, $64, $59, $73, to subsidiaries, respectively) 941 658 663 Other expense 197 439 254 Total expense 1,138 1,097 917 Income before income taxes and equity in undistributed net income of subsidiaries 4,331 4,896 1,133 (Benefit) for income taxes (208 ) (165 ) (526 ) Equity in undistributed net income: Bank subsidiaries (139 ) (508 ) 1,524 Nonbank subsidiaries 41 (287 ) 907 Net income 4,441 4,266 4,090 Preferred stock dividends (169 ) (169 ) (175 ) Net income applicable to common shareholders of The Bank of New York Mellon Corporation $ 4,272 $ 4,097 $ 3,915 Condensed Balance Sheet—The Bank of New York Mellon Corporation (Parent Corporation) Dec. 31, (in millions) 2019 2018 Assets: Cash and due from banks $ 345 $ 909 Securities 8 27 Investment in and advances to subsidiaries and associated companies: Banks 32,511 31,285 Other 36,948 37,986 Subtotal 69,459 69,271 Corporate-owned life insurance 773 761 Other assets 319 740 Total assets $ 70,904 $ 71,708 Liabilities: Deferred compensation $ 455 $ 445 Affiliate borrowings 1,500 1,616 Other liabilities 1,631 1,246 Long-term debt 25,835 27,763 Total liabilities 29,421 31,070 Shareholders’ equity 41,483 40,638 Total liabilities and shareholders’ equity $ 70,904 $ 71,708 Condensed Statement of Cash Flows—The Bank of New York Mellon Corporation (Parent Corporation) Year ended Dec. 31, (in millions) 2019 2018 2017 Operating activities: Net income $ 4,441 $ 4,266 $ 4,090 Adjustments to reconcile net income to net cash provided by operating activities: Equity in undistributed net loss (income) of subsidiaries 98 795 (2,431 ) Change in accrued interest receivable (12 ) 27 (6 ) Change in accrued interest payable (17 ) 29 42 Change in taxes payable (a) 331 224 (600 ) Other, net (107 ) (257 ) 38 Net cash provided by operating activities 4,734 5,084 1,133 Investing activities: Purchases of securities — — (991 ) Proceeds from sales of securities — 13 2,729 Change in loans — — 7 Acquisitions of, investments in, and advances to subsidiaries (b) 1,495 (53 ) (7,208 ) Other, net — 1 — Net cash provided by (used for) investing activities 1,495 (39 ) (5,463 ) Financing activities: Proceeds from issuance of long-term debt 1,745 4,144 4,738 Repayments of long-term debt (4,250 ) (3,650 ) (997 ) Change in advances from subsidiaries 242 (1,561 ) (3,930 ) Issuance of common stock 86 120 465 Treasury stock acquired (3,327 ) (3,269 ) (2,686 ) Cash dividends paid (1,289 ) (1,221 ) (1,076 ) Net cash (used for) financing activities (6,793 ) (5,437 ) (3,486 ) Change in cash and due from banks (564 ) (392 ) (7,816 ) Cash and due from banks at beginning of year 909 1,301 9,117 Cash and due from banks at end of year $ 345 $ 909 $ 1,301 Supplemental disclosures Interest paid $ 958 $ 629 $ 705 Income taxes paid 2 12 61 Income taxes refunded — 7 15 (a) Includes payments received from subsidiaries for taxes of $823 million in 2019 , $837 million in 2018 and $189 million in 2017 . (b) Includes $2,139 million of cash outflows, net of $3,634 million of cash inflows in 2019 , $2,807 million of cash outflows, net of $2,754 million of cash inflows in 2018 and $10,296 million of cash outflows, net of $3,088 million of cash inflows in 2017 .

Fair value measurement

Fair value measurement	12 Months Ended
Fair value measurement	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Fair value measurement	Fair value measurement Fair value is defined as the price that would be received to sell an asset, or paid to transfer a liability, in an orderly transaction between market participants at the measurement date. A three-level hierarchy for fair value measurements is utilized based upon the transparency of inputs to the valuation of an asset or liability as of the measurement date. BNY Mellon’s own creditworthiness is considered when valuing liabilities. Fair value focuses on exit price in an orderly transaction (that is, not a forced liquidation or distressed sale) between market participants at the measurement date under current market conditions. If there has been a significant decrease in the volume and level of activity for the asset or liability, a change in valuation technique or the use of multiple valuation techniques may be appropriate. In such instances, determining the price at which willing market participants would transact at the measurement date under current market conditions depends on the facts and circumstances and requires the use of significant judgment. The objective is to determine from weighted indicators of fair value a reasonable point within the range that is most representative of fair value under current market conditions. Determination of fair value We have established processes for determining fair values. Fair value is based upon quoted market prices in active markets, where available. For financial instruments where quotes from recent exchange transactions are not available, we determine fair value based on discounted cash flow analysis, comparison to similar instruments and the use of financial models. Discounted cash flow analysis is dependent upon estimated future cash flows and the level of interest rates. Model-based pricing uses inputs of observable prices, where available, for interest rates, foreign exchange rates, option volatilities and other factors. Models are benchmarked and validated by an independent internal risk management function. Our valuation process takes into consideration factors such as counterparty credit quality, liquidity, concentration concerns and observability of model parameters. Valuation adjustments may be made to record financial instruments at fair value. Most derivative contracts are valued using models which are calibrated to observable market data and employ standard market pricing theory for their valuations. Valuation models incorporate counterparty credit risk by discounting each trade’s expected exposures to the counterparty using the counterparty’s credit spreads, as implied by the credit default swap market. We also adjust expected liabilities to the counterparty using BNY Mellon’s own credit spreads, as implied by the credit default swap market. Accordingly, the valuation of our derivative positions is sensitive to the current changes in our own credit spreads as well as those of our counterparties. In certain cases, recent prices may not be observable for instruments that trade in inactive or less active markets. Upon evaluating the uncertainty in valuing financial instruments subject to liquidity issues, we make an adjustment to their value. The determination of the liquidity adjustment includes the availability of external quotes, the time since the latest available quote and the price volatility of the instrument. Certain parameters in some financial models are not directly observable and, therefore, are based on management’s estimates and judgments. These financial instruments are normally traded less actively. We apply valuation adjustments to mitigate the possibility of error and revision in the model based estimate value. Examples include products where parameters such as correlation and recovery rates are unobservable. The methods described above for instruments that trade in inactive or less active markets may produce a current fair value calculation that may not be indicative of net realizable value or reflective of future fair values. We believe our methods of determining fair value are appropriate and consistent with other market participants. However, the use of different methodologies or different assumptions to value certain financial instruments could result in a different estimate of fair value. Valuation hierarchy A three-level valuation hierarchy is used for disclosure of fair value measurements based upon the transparency of inputs to the valuation of an asset or liability as of the measurement date. The three levels are described below. Level 1 : Inputs to the valuation methodology are quoted prices (unadjusted) for identical assets or liabilities in active markets. Level 1 assets and liabilities include certain debt and equity securities, derivative financial instruments actively traded on exchanges and highly liquid government bonds. Level 2 : Observable inputs other than Level 1 prices, for example, quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, and inputs that are observable or can be corroborated, either directly or indirectly, for substantially the full term of the financial instrument. Level 2 assets and liabilities include debt instruments that are traded less frequently than exchange-traded securities and derivative financial instruments whose model inputs are observable in the market or can be corroborated by market-observable data. Examples in this category are MBS, corporate debt securities and over-the-counter (“OTC”) derivative contracts. Level 3 : Inputs to the valuation methodology are unobservable and significant to the fair value measurement. A financial instrument’s categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. Valuation methodology Following is a description of the valuation methodologies used for instruments measured at fair value, as well as the general classification of such instruments pursuant to the valuation hierarchy. Securities We determine fair value primarily based on pricing sources with reasonable levels of price transparency. Where quoted prices are available in an active market, we classify the securities within Level 1 of the valuation hierarchy. Securities include both long and short positions. Level 1 securities include U.S. Treasury and certain sovereign debt securities that are actively traded in highly liquid OTC markets, money market funds and exchange-traded equities. If quoted market prices are not available, fair values are primarily determined using pricing models using observable trade data, market data, quoted prices of securities with similar characteristics or discounted cash flows. Examples of such instruments, which would generally be classified within Level 2 of the valuation hierarchy, include MBS, state and political subdivisions, certain sovereign debt, corporate bonds and foreign covered bonds. Specifically, the pricing sources obtain recent transactions for similar types of securities (e.g., vintage, position in the securitization structure) and ascertain variables such as discount rate and speed of prepayment for the types of transaction and apply such variables to similar types of bonds. We view these as observable transactions in the current marketplace and classify such securities as Level 2. Pricing sources discontinue pricing any specific security whenever they determine there is insufficient observable data to provide a good faith opinion on price. In certain cases where there is limited activity or less transparency around inputs to the valuation, we classify those securities in Level 3 of the valuation hierarchy. As of Dec. 31, 2019 we have no instruments included in Level 3 of the valuation hierarchy. At Dec. 31, 2019 , approximately 99% of our securities were valued by pricing sources with reasonable levels of price transparency. The remaining securities were generally valued using observable inputs. Additional disclosures of securities are provided in Note 4. Derivative financial instruments We classify exchange-traded derivative financial instruments valued using quoted prices in Level 1 of the valuation hierarchy. Examples include exchange-traded equity and foreign exchange options. Since few other classes of derivative contracts are listed on an exchange, most of our derivative positions are valued using models that use as their basis readily observable market parameters, and we classify them in Level 2 of the valuation hierarchy. Such derivative financial instruments include swaps and options, foreign exchange spot and forward contracts and credit default swaps. Derivatives valued using models with significant unobservable market parameters in markets that lack two-way flow are classified in Level 3 of the valuation hierarchy. Examples may include long-dated swaps and options, where parameters may be unobservable for longer maturities; and certain highly structured products, where correlation risk is unobservable. As of Dec. 31, 2019 we have no Level 3 derivatives. Additional disclosures of derivative instruments are provided in Note 23. Seed capital In our Investment Management business, we make seed capital investments in certain funds we manage. Seed capital is generally included in other assets on the consolidated balance sheet. When applicable, we value seed capital based on the published NAV of the fund. For other types of investments in funds, we consider all of the rights and obligations inherent in our ownership interest, including the reported NAV as well as other factors that affect the fair value of our interest in the fund. Interests in securitizations For the interests in securitizations that are classified in trading assets – equity instruments and long-term debt, we use discounted cash flow models, which generally include assumptions of projected finance charges related to the securitized assets, estimated net credit losses, prepayment assumptions and estimates of payments to third-party investors. When available, we compare our fair value estimates and assumptions to market activity and to the actual results of the securitized portfolio. Other assets measured at NAV We hold private equity investments, specifically SBICs, which are compliant with the Volcker Rule. There are no readily available market quotations for these investment partnerships. The fair value of the SBICs is based on our ownership percentage of the fair value of the underlying investments as provided by the partnership managers. These investments are typically valued on a quarterly basis. Our SBIC private equity investments are valued at NAV as a practical expedient for fair value. The following tables present the financial instruments carried at fair value at Dec. 31, 2019 and Dec. 31, 2018 , by caption on the consolidated balance sheet and by the three-level valuation hierarchy. We have included credit ratings information in certain of the tables because the information indicates the degree of credit risk to which we are exposed, and significant changes in ratings classifications could result in increased risk for us. Assets measured at fair value on a recurring basis at Dec. 31, 2019 Total carrying (dollars in millions) Level 1 Level 2 Level 3 Netting (a) Available-for-sale securities: Agency RMBS $ — $ 27,043 $ — $ — $ 27,043 U.S. Treasury 15,431 — — — 15,431 Sovereign debt/sovereign guaranteed 7,784 4,862 — — 12,646 Agency commercial MBS — 9,417 — — 9,417 Foreign covered bonds — 4,197 — — 4,197 CLOs — 4,063 — — 4,063 Supranational — 3,709 — — 3,709 Foreign government agencies — 2,643 — — 2,643 Non-agency commercial MBS — 2,178 — — 2,178 Other ABS — 2,143 — — 2,143 U.S. government agencies — 1,949 — — 1,949 Non-agency RMBS (b) — 1,233 — — 1,233 State and political subdivisions — 1,044 — — 1,044 Corporate bonds — 853 — — 853 Other debt securities — 1 — — 1 Total available-for-sale securities 23,215 65,335 — — 88,550 Trading assets: Debt instruments 1,568 4,243 — — 5,811 Equity instruments (c) 4,539 — — — 4,539 Derivative assets not designated as hedging: Interest rate 4 3,686 — (1,792 ) 1,898 Foreign exchange — 5,331 — (4,021 ) 1,310 Equity and other contracts — 19 — (6 ) 13 Total derivative assets not designated as hedging 4 9,036 — (5,819 ) 3,221 Total trading assets 6,111 13,279 — (5,819 ) 13,571 Other assets: Derivative assets designated as hedging: Foreign exchange — 21 — — 21 Total derivative assets designated as hedging — 21 — — 21 Other assets (d) 38 179 — — 217 Assets measured at NAV (d) 181 Subtotal assets of operations at fair value 29,364 78,814 — (5,819 ) 102,540 Percentage of assets of operations prior to netting 27 % 73 % — % Assets of consolidated investment management funds 212 33 — — 245 Total assets $ 29,576 $ 78,847 $ — $ (5,819 ) $ 102,785 Percentage of total assets prior to netting 27 % 73 % — % Liabilities measured at fair value on a recurring basis at Dec. 31, 2019 Total carrying (dollars in millions) Level 1 Level 2 Level 3 Netting (a) Trading liabilities: Debt instruments $ 1,477 $ 107 $ — $ — $ 1,584 Equity instruments 73 — — — 73 Derivative liabilities not designated as hedging: Interest rate 6 3,244 — (1,986 ) 1,264 Foreign exchange — 5,340 — (3,428 ) 1,912 Equity and other contracts 3 6 — (1 ) 8 Total derivative liabilities not designated as hedging 9 8,590 — (5,415 ) 3,184 Total trading liabilities 1,559 8,697 — (5,415 ) 4,841 Long-term debt (c) — 387 — — 387 Other liabilities – derivative liabilities designated as hedging: Interest rate — 350 — — 350 Foreign exchange — 257 — — 257 Total other liabilities – derivative liabilities designated as hedging — 607 — — 607 Subtotal liabilities of operations at fair value 1,559 9,691 — (5,415 ) 5,835 Percentage of liabilities of operations prior to netting 14 % 86 % — % Liabilities of consolidated investment management funds 1 — — — 1 Total liabilities $ 1,560 $ 9,691 $ — $ (5,415 ) $ 5,836 Percentage of total liabilities prior to netting 14 % 86 % — % (a) ASC 815, Derivatives and Hedging, permits the netting of derivative receivables and derivative payables under legally enforceable master netting agreements and permits the netting of cash collateral. Netting is applicable to derivatives not designated as hedging instruments included in trading assets or trading liabilities and derivatives designated as hedging instruments included in other assets or other liabilities. Netting is allocated to the derivative products based on the net fair value of each product. (b) Includes $640 million in Level 2 that was included in the former Grantor Trust. (c) Includes certain interests in securitizations. (d) Includes seed capital, private equity investments and other assets. Assets measured at fair value on a recurring basis at Dec. 31, 2018 Total carrying value (dollars in millions) Level 1 Level 2 Level 3 Netting (a) Available-for-sale securities: Agency RMBS $ — $ 25,308 $ — $ — $ 25,308 U.S. Treasury 20,076 — — — 20,076 Sovereign debt/sovereign guaranteed 6,613 4,137 — — 10,750 Agency commercial MBS — 9,691 — — 9,691 CLOs — 3,364 — — 3,364 Supranational — 2,984 — — 2,984 Foreign covered bonds — 2,878 — — 2,878 State and political subdivisions — 2,247 — — 2,247 Other ABS — 1,773 — — 1,773 U.S. government agencies — 1,657 — — 1,657 Non-agency commercial MBS — 1,464 — — 1,464 Non-agency RMBS (b) — 1,325 — — 1,325 Foreign government agencies — 1,161 — — 1,161 Corporate bonds — 1,054 — — 1,054 Other debt securities — 77 — — 77 Total available-for-sale securities 26,689 59,120 — — 85,809 Trading assets: Debt instruments 801 2,594 — — 3,395 Equity instruments (c) 1,114 — — — 1,114 Derivative assets not designated as hedging: Interest rate 7 3,583 — (2,202 ) 1,388 Foreign exchange — 4,807 — (3,724 ) 1,083 Equity and other contracts 9 59 — (13 ) 55 Total derivative assets not designated as hedging 16 8,449 — (5,939 ) 2,526 Total trading assets 1,931 11,043 — (5,939 ) 7,035 Other assets : Derivative assets designated as hedging: Interest rate — 23 — — 23 Foreign exchange — 266 — — 266 Total derivative assets designated as hedging — 289 — — 289 Other assets (d) 68 170 — — 238 Assets measured at NAV (d) 215 Subtotal assets of operations at fair value 28,688 70,622 — (5,939 ) 93,586 Percentage of assets of operations prior to netting 29 % 71 % — % Assets of consolidated investment management funds 210 253 — — 463 Total assets $ 28,898 $ 70,875 $ — $ (5,939 ) $ 94,049 Percentage of total assets prior to netting 29 % 71 % — % Liabilities measured at fair value on a recurring basis at Dec. 31, 2018 Total carrying value (dollars in millions) Level 1 Level 2 Level 3 Netting (a) Trading liabilities: Debt instruments $ 1,006 $ 118 $ — $ — $ 1,124 Equity instruments 75 — — — 75 Derivative liabilities not designated as hedging: Interest rate 12 3,104 — (2,508 ) 608 Foreign exchange — 5,215 — (3,626 ) 1,589 Equity and other contracts 1 118 — (36 ) 83 Total derivative liabilities not designated as hedging 13 8,437 — (6,170 ) 2,280 Total trading liabilities 1,094 8,555 — (6,170 ) 3,479 Long-term debt (c) — 371 — — 371 Other liabilities – derivative liabilities designated as hedging: Interest rate — 74 — — 74 Foreign exchange — 14 — — 14 Total other liabilities – derivative liabilities designated as hedging — 88 — — 88 Subtotal liabilities of operations at fair value 1,094 9,014 — (6,170 ) 3,938 Percentage of liabilities of operations prior to netting 11 % 89 % — % Liabilities of consolidated investment management funds 2 — — — 2 Total liabilities $ 1,096 $ 9,014 $ — $ (6,170 ) $ 3,940 Percentage of total liabilities prior to netting 11 % 89 % — % (a) ASC 815, Derivatives and Hedging, permits the netting of derivative receivables and derivative payables under legally enforceable master netting agreements and permits the netting of cash collateral. Netting is applicable to derivatives not designated as hedging instruments included in trading assets or trading liabilities and derivatives designated as hedging instruments included in other assets or other liabilities. Netting is allocated to the derivative products based on the net fair value of each product. (b) Includes $832 million in Level 2 that was included in the former Grantor Trust. (c) Includes certain interests in securitizations. (d) Includes seed capital, private equity investments and other assets. Details of certain available-for-sale securities measured at fair value on a recurring basis Dec. 31, 2019 Dec. 31, 2018 Total carrying value Ratings (a) Total carrying value Ratings (a) AAA/ AA- A+/ A- BBB+/ BBB- BB+ and lower AAA/ AA- A+/ A- BBB+/ BBB- BB+ and lower (dollars in millions) (b) (b) Non-agency RMBS (c) , originated in: 2007-2019 $ 464 55 % 1 % — % 44 % $ 315 15 % 2 % 3 % 80 % 2006 291 — 21 — 79 363 — 19 — 81 2005 305 5 2 8 85 396 9 1 7 83 2004 and earlier 173 22 24 4 50 251 16 24 11 49 Total non-agency RMBS $ 1,233 25 % 9 % 3 % 63 % $ 1,325 9 % 11 % 5 % 75 % Non-agency commercial MBS originated in: 2009-2019 $ 2,178 98 % 2 % — % — % $ 1,464 96 % 4 % — % — % Foreign covered bonds: Canada $ 1,798 100 % — % — % — % $ 1,524 100 % — % — % — % UK 984 100 — — — 529 100 — — — Australia 431 100 — — — 333 100 — — — Germany 357 100 — — — — — — — — Norway 287 100 — — — 150 100 — — — Other 340 100 — — — 342 100 — — — Total foreign covered bonds $ 4,197 100 % — % — % — % $ 2,878 100 % — % — % — % Sovereign debt/sovereign guaranteed: UK $ 3,318 100 % — % — % — % $ 2,153 100 % — % — % — % Germany 1,997 100 — — — 1,826 100 — — — Spain 1,453 — 6 94 — 1,365 — — 100 — France 1,272 100 — — — 1,548 100 — — — Italy 1,260 — — 100 — 939 — — 100 — Netherlands 791 100 — — — 875 100 — — — Singapore 742 100 — — — 165 100 — — — Hong Kong 411 100 — — — 450 100 — — — Ireland 301 — 100 — — 625 — 100 — — Other (d) 1,101 62 26 — 12 804 87 — — 13 Total sovereign debt/sovereign guaranteed $ 12,646 73 % 5 % 21 % 1 % $ 10,750 72 % 6 % 21 % 1 % Foreign government agencies: Germany $ 1,131 100 % — % — % — % $ 401 100 % — % — % — % Netherlands 678 100 — — — 461 100 — — — Finland 245 100 — — — 185 100 — — — Other 589 78 22 — — 114 100 — — — Total foreign government agencies $ 2,643 95 % 5 % — % — % $ 1,161 100 % — % — % — % (a) Represents ratings by S&P or the equivalent. (b) At Dec. 31, 2019 and Dec. 31, 2018 , sovereign debt/sovereign guaranteed securities were included in Level 1 and Level 2 in the valuation hierarchy. All other assets in the table are Level 2 assets in the valuation hierarchy. (c) Includes $640 million at Dec. 31, 2019 and $832 million at Dec. 31, 2018 that were included in the former Grantor Trust. (d) Includes non-investment grade sovereign debt/sovereign guaranteed securities related to Brazil of $134 million at Dec. 31, 2019 and $107 million at Dec. 31, 2018 . Assets and liabilities measured at fair value on a nonrecurring basis Under certain circumstances, we make adjustments to the fair value of our assets, liabilities and unfunded lending-related commitments although they are not measured at fair value on an ongoing basis. Examples would be the recording of an impairment of an asset and non-readily marketable equity securities carried at cost with upward or downward adjustments. The following table presents the financial instruments carried on the consolidated balance sheet by caption and level in the fair value hierarchy as of Dec. 31, 2019 and Dec. 31, 2018 . Assets measured at fair value on a nonrecurring basis Dec. 31, 2019 Dec. 31, 2018 Total carrying value Total carrying value (in millions) Level 1 Level 2 Level 3 Level 1 Level 2 Level 3 Loans (a) $ — $ 58 $ — $ 58 $ — $ 64 $ 4 $ 68 Other assets (b) — 64 — 64 — 57 — 57 Total assets at fair value on a nonrecurring basis $ — $ 122 $ — $ 122 $ — $ 121 $ 4 $ 125 (a) The fair value of these loans decreased $1 million in both 2019 and 2018 , based on the fair value of the underlying collateral, as required by guidance in ASC 310, Receivables, with an offset to the allowance for credit losses. (b) Includes non-readily marketable equity securities carried at cost with upward or downward adjustments and other assets received in satisfaction of debt. Estimated fair value of financial instruments The following tables present the estimated fair value and the carrying amount of financial instruments not carried at fair value on the consolidated balance sheet at Dec. 31, 2019 and Dec. 31, 2018 , by caption on the consolidated balance sheet and by the valuation hierarchy. Summary of financial instruments Dec. 31, 2019 (in millions) Level 1 Level 2 Level 3 Total Carrying Assets: Interest-bearing deposits with the Federal Reserve and other central banks $ — $ 95,042 $ — $ 95,042 $ 95,042 Interest-bearing deposits with banks — 14,832 — 14,832 14,811 Federal funds sold and securities purchased under resale agreements — 30,182 — 30,182 30,182 Securities held-to-maturity 4,630 30,175 — 34,805 34,483 Loans (a) — 54,194 — 54,194 53,718 Other financial assets 4,830 1,233 — 6,063 6,063 Total $ 9,460 $ 225,658 $ — $ 235,118 $ 234,299 Liabilities: Noninterest-bearing deposits $ — $ 57,630 $ — $ 57,630 $ 57,630 Interest-bearing deposits — 200,846 — 200,846 201,836 Federal funds purchased and securities sold under repurchase agreements — 11,401 — 11,401 11,401 Payables to customers and broker-dealers — 18,758 — 18,758 18,758 Commercial paper — 3,959 — 3,959 3,959 Borrowings — 917 — 917 917 Long-term debt — 27,858 — 27,858 27,114 Total $ — $ 321,369 $ — $ 321,369 $ 321,615 (a) Does not include the leasing portfolio. Summary of financial instruments Dec. 31, 2018 (in millions) Level 1 Level 2 Level 3 Total estimated Carrying Assets: Interest-bearing deposits with the Federal Reserve and other central banks $ — $ 67,988 $ — $ 67,988 $ 67,988 Interest-bearing deposits with banks — 14,168 — 14,168 14,148 Federal funds sold and securities purchased under resale agreements — 46,795 — 46,795 46,795 Securities held-to-maturity 5,512 27,790 — 33,302 33,982 Loans (a) — 55,142 — 55,142 55,161 Other financial assets 5,864 1,383 — 7,247 7,247 Total $ 11,376 $ 213,266 $ — $ 224,642 $ 225,321 Liabilities: Noninterest-bearing deposits $ — $ 70,783 $ — $ 70,783 $ 70,783 Interest-bearing deposits — 165,914 — 165,914 167,995 Federal funds purchased and securities sold under repurchase agreements — 14,243 — 14,243 14,243 Payables to customers and broker-dealers — 19,731 — 19,731 19,731 Commercial paper — 1,939 — 1,939 1,939 Borrowings — 3,584 — 3,584 3,584 Long-term debt — 28,347 — 28,347 28,792 Total $ — $ 304,541 $ — $ 304,541 $ 307,067 (a) Does not include the leasing portfolio.

Fair value option

Fair value option	12 Months Ended
Fair value option	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Fair value option	Fair value option We elected fair value as an alternative measurement for selected financial assets and liabilities that are not otherwise required to be measured at fair value, including the assets and liabilities of consolidated investment management funds and certain long-term debt. The following table presents the assets and liabilities of consolidated investment management funds, at fair value. Assets and liabilities of consolidated investment management funds, at fair value Dec. 31, (in millions) 2019 2018 Assets of consolidated investment management funds: Trading assets $ 229 $ 243 Other assets 16 220 Total assets of consolidated investment management funds $ 245 $ 463 Liabilities of consolidated investment management funds: Other liabilities 1 2 Total liabilities of consolidated investment management funds $ 1 $ 2 BNY Mellon values the assets and liabilities of its consolidated investment management funds using quoted prices for identical assets or liabilities in active markets or observable inputs such as quoted prices for similar assets or liabilities. Quoted prices for either identical or similar assets or liabilities in inactive markets may also be used. Accordingly, fair value best reflects the interests BNY Mellon holds in the economic performance of the consolidated investment management funds. Changes in the value of the assets and liabilities are recorded in the consolidated income statement as investment income of consolidated investment management funds and in the interest of investment management fund note holders, respectively. We have elected the fair value option on $240 million of long-term debt. The fair value of this long-term debt was $387 million at Dec. 31, 2019 and $371 million at Dec. 31, 2018 . The long-term debt is valued using observable market inputs and is included in Level 2 of the valuation hierarchy. The following table presents the changes in fair value of long-term debt recorded in foreign exchange and other trading revenue in the consolidated income statement. Change in fair value of long-term debt (a) Year ended Dec. 31, (in millions) 2019 2018 2017 Foreign exchange and other trading revenue $ (16 ) $ (4 ) $ (4 ) (a) The changes in fair value are approximately offset by an economic hedge included in foreign exchange and other trading revenue.

Commitments and contingent liab

Commitments and contingent liabilities	12 Months Ended
Commitments and contingent liabilities	Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and contingent liabilities	Commitments and contingent liabilities Off-balance sheet arrangements In the normal course of business, various commitments and contingent liabilities are outstanding that are not reflected in the accompanying consolidated balance sheets. Our significant trading and off-balance sheet risks are securities, foreign currency and interest rate risk management products, commercial lending commitments, letters of credit and securities lending indemnifications. We assume these risks to reduce interest rate and foreign currency risks, to provide customers with the ability to meet credit and liquidity needs and to hedge foreign currency and interest rate risks. These items involve, to varying degrees, credit, foreign currency and interest rate risks not recognized on the balance sheet. Our off-balance sheet risks are managed and monitored in manners similar to those used for on-balance sheet risks. The following table presents a summary of our off-balance sheet credit risks. Off-balance sheet credit risks Dec. 31, (in millions) 2019 2018 Lending commitments $ 49,119 $ 50,631 Standby letters of credit (“SBLC”) (a) 2,298 2,817 Commercial letters of credit 74 165 Securities lending indemnifications (b)(c) 408,378 401,504 (a) Net of participations totaling $146 million at Dec. 31, 2019 and $163 million at Dec. 31, 2018 . (b) Excludes the indemnification for securities for which BNY Mellon acts as an agent on behalf of CIBC Mellon clients, which totaled $57 billion at Dec. 31, 2019 and $56 billion at Dec. 31, 2018 . (c) Includes cash collateral, invested in indemnified repurchase agreements, held by us as securities lending agent of $37 billion at Dec. 31, 2019 and $35 billion at Dec. 31, 2018 . The total potential loss on undrawn lending commitments, standby and commercial letters of credit, and securities lending indemnifications is equal to the total notional amount if drawn upon, which does not consider the value of any collateral. Since many of the lending commitments are expected to expire without being drawn upon, the total amount does not necessarily represent future cash requirements. A summary of lending commitment maturities is as follows: $31.0 billion in less than one year, $17.8 billion in one to five years and $288 million over five years. SBLCs principally support obligations of corporate clients and were collateralized with cash and securities of $184 million at Dec. 31, 2019 and $223 million at Dec. 31, 2018 . At Dec. 31, 2019 , $1.6 billion of the SBLCs will expire within one year, $723 million in one to five years and $3 million over five years. We must recognize, at the inception of an SBLC and foreign and other guarantees, a liability for the fair value of the obligation undertaken in issuing the guarantee. The fair value of the liability, which was recorded with a corresponding asset in other assets, was estimated as the present value of contractual customer fees. The estimated liability for losses related to SBLCs and foreign and other guarantees, if any, is included in the allowance for lending-related commitments. Payment/performance risk of SBLCs is monitored using both historical performance and internal ratings criteria. BNY Mellon’s historical experience is that SBLCs typically expire without being funded. SBLCs below investment grade are monitored closely for payment/performance risk. The table below shows SBLCs by investment grade: Standby letters of credit Dec. 31, 2019 2018 Investment grade 90 % 89 % Non-investment grade 10 % 11 % A commercial letter of credit is normally a short-term instrument used to finance a commercial contract for the shipment of goods from a seller to a buyer. Although the commercial letter of credit is contingent upon the satisfaction of specified conditions, it represents a credit exposure if the buyer defaults on the underlying transaction. As a result, the total contractual amounts do not necessarily represent future cash requirements. Commercial letters of credit totaled $74 million at Dec. 31, 2019 and $165 million at Dec. 31, 2018 . We expect many of the lending commitments and letters of credit to expire without the need to advance any cash. The revenue associated with guarantees frequently depends on the credit rating of the obligor and the structure of the transaction, including collateral, if any. The allowance for lending-related commitments was $94 million at Dec. 31, 2019 and $106 million at Dec. 31, 2018 . A securities lending transaction is a fully collateralized transaction in which the owner of a security agrees to lend the security (typically through an agent, in our case, The Bank of New York Mellon), to a borrower, usually a broker-dealer or bank, on an open, overnight or term basis, under the terms of a prearranged contract. We typically lend securities with indemnification against borrower default. We generally require the borrower to provide collateral with a minimum value of 102% of the fair value of the securities borrowed, which is monitored on a daily basis, thus reducing credit risk. Market risk can also arise in securities lending transactions. These risks are controlled through policies limiting the level of risk that can be undertaken. Securities lending transactions are generally entered into only with highly rated counterparties. Securities lending indemnifications were secured by collateral of $428 billion at Dec. 31, 2019 and $420 billion at Dec. 31, 2018 . CIBC Mellon, a joint venture between BNY Mellon and the Canadian Imperial Bank of Commerce (“CIBC”), engages in securities lending activities. CIBC Mellon, BNY Mellon and CIBC jointly and severally indemnify securities lenders against specific types of borrower default. At Dec. 31, 2019 and Dec. 31, 2018 , $57 billion and $56 billion , respectively, of borrowings at CIBC Mellon, for which BNY Mellon acts as agent on behalf of CIBC Mellon clients, were secured by collateral of $61 billion and $59 billion , respectively. If, upon a default, a borrower’s collateral was not sufficient to cover its related obligations, certain losses related to the indemnification could be covered by the indemnitors. Unsettled repurchase and reverse repurchase agreements In the normal course of business, we enter into repurchase agreements and reverse repurchase agreements that settle at a future date. In repurchase agreements, BNY Mellon receives cash from and provides securities as collateral to a counterparty at settlement. In reverse repurchase agreements, BNY Mellon advances cash to and receives securities as collateral from the counterparty at settlement. These transactions are recorded on the consolidated balance sheet on settlement date. At Dec. 31, 2019 , we had no unsettled repurchase agreements and $8.3 billion of unsettled reverse repurchase agreements which all settled the following business day. Industry concentrations We have significant industry concentrations related to credit exposure at Dec. 31, 2019 . The tables below present our credit exposure in the financial institutions and commercial portfolios. Financial institutions portfolio exposure (in billions) Dec. 31, 2019 Loans Unfunded commitments Total exposure Securities industry $ 2.9 $ 23.4 $ 26.3 Banks 7.4 1.1 8.5 Asset managers 1.3 6.4 7.7 Insurance — 2.7 2.7 Government 0.1 0.3 0.4 Other 0.8 0.5 1.3 Total $ 12.5 $ 34.4 $ 46.9 Commercial portfolio exposure (in billions) Dec. 31, 2019 Loans Unfunded commitments Total exposure Manufacturing $ 0.9 $ 4.2 $ 5.1 Services and other 0.6 3.7 4.3 Energy and utilities 0.3 3.7 4.0 Media and telecom — 1.0 1.0 Total $ 1.8 $ 12.6 $ 14.4 Major concentrations in securities lending are primarily to broker-dealers and are generally collateralized with cash and/or securities. Exposure for certain administrative errors In connection with certain offshore tax-exempt funds that we manage, we were potentially liable to the funds for certain administrative errors. The errors related to the resident status of such funds, which exposed the Company to a tax liability related to the funds’ earnings. In 2019, we reduced the previously established reserves for this exposure based on recent discussions and agreement with the tax authorities. Sponsored Member Repo Program BNY Mellon is a sponsoring member in the Fixed Income Clearing Corporation (“FICC”) sponsored member program, where we submit eligible overnight repurchase and reverse repurchase transactions in U.S. Treasury securities (“Sponsored Member Transactions”) between BNY Mellon and our sponsored member clients for novation and clearing through FICC pursuant to the FICC Government Securities Division rulebook (the “FICC Rules”). We also guarantee to FICC the prompt and full payment and performance of our sponsored member clients’ respective obligations under the FICC Rules in connection with such clients’ Sponsored Member Transactions. We minimize our credit exposure under this guaranty by obtaining a security interest in our sponsored member clients’ collateral and rights under Sponsored Member Transactions. See “Offsetting assets and liabilities” in Note 23 for additional information on our repurchase and reverse repurchase agreements. Indemnification arrangements We have provided standard representations for underwriting agreements, acquisition and divestiture agreements, sales of loans and commitments, and other similar types of arrangements and customary indemnification for claims and legal proceedings related to providing financial services that are not otherwise included above. Insurance has been purchased to mitigate certain of these risks. Generally, there are no stated or notional amounts included in these indemnifications and the contingencies triggering the obligation for indemnification are not expected to occur. Furthermore, often counterparties to these transactions provide us with comparable indemnifications. We are unable to develop an estimate of the maximum payout under these indemnifications for several reasons. In addition to the lack of a stated or notional amount in a majority of such indemnifications, we are unable to predict the nature of events that would trigger indemnification or the level of indemnification for a certain event. We believe, however, that the possibility that we will have to make any material payments for these indemnifications is remote. At Dec. 31, 2019 and Dec. 31, 2018 , we have not recorded any material liabilities under these arrangements. Clearing and settlement exchanges We are a noncontrolling equity investor in, and/or member of, several industry clearing or settlement exchanges through which foreign exchange, securities, derivatives or other transactions settle. Certain of these industry clearing and settlement exchanges require their members to guarantee their obligations and liabilities and/or to provide liquidity support in the event other members do not honor their obligations. We believe the likelihood that a clearing or settlement exchange (of which we are a member) would become insolvent is remote. Additionally, certain settlement exchanges have implemented loss allocation policies that enable the exchange to allocate settlement losses to the members of the exchange. It is not possible to quantify such mark-to-market loss until the loss occurs. Any ancillary costs that occur as a result of any mark-to-market loss cannot be quantified. In addition, we also sponsor clients as members on clearing and settlement exchanges and guarantee their obligations. At Dec. 31, 2019 and Dec. 31, 2018 , we have not recorded any material liabilities under these arrangements. Legal proceedings In the ordinary course of business, The Bank of New York Mellon Corporation and its subsidiaries are routinely named as defendants in or made parties to pending and potential legal actions. We also are subject to governmental and regulatory examinations, information-gathering requests, investigations and proceedings (both formal and informal). Claims for significant monetary damages are often asserted in many of these legal actions, while claims for disgorgement, restitution, penalties and/or other remedial actions or sanctions may be sought in governmental and regulatory matters. It is inherently difficult to predict the eventual outcomes of such matters given their complexity and the particular facts and circumstances at issue in each of these matters. However, on the basis of our current knowledge and understanding, we do not believe that judgments, settlements or orders, if any, arising from these matters (either individually or in the aggregate, after giving effect to applicable reserves and insurance coverage) will have a material adverse effect on the consolidated financial position or liquidity of BNY Mellon, although they could have a material effect on our results of operations in a given period. In view of the inherent unpredictability of outcomes in litigation and regulatory matters, particularly where (i) the damages sought are substantial or indeterminate, (ii) the proceedings are in the early stages, or (iii) the matters involve novel legal theories or a large number of parties, as a matter of course there is considerable uncertainty surrounding the timing or ultimate resolution of litigation and regulatory matters, including a possible eventual loss, fine, penalty or business impact, if any, associated with each such matter. In accordance with applicable accounting guidance, we establish accruals for litigation and regulatory matters when those matters proceed to a stage where they present loss contingencies that are both probable and reasonably estimable. In such cases, there may be a possible exposure to loss in excess of any amounts accrued. We regularly monitor such matters for developments that could affect the amount of the accrual, and will adjust the accrual amount as appropriate. If the loss contingency in question is not both probable and reasonably estimable, we do not establish an accrual and the matter continues to be monitored for any developments that would make the loss contingency both probable and reasonably estimable. We believe that our accruals for legal proceedings are appropriate and, in the aggregate, are not material to the consolidated financial position of BNY Mellon, although future accruals could have a material effect on the results of operations in a given period. In addition, if we have the potential to recover a portion of an estimated loss from a third party, we record a receivable up to the amount of the accrual that is probable of recovery. For certain of those matters described here for which a loss contingency may, in the future, be reasonably possible (whether in excess of a related accrued liability or where there is no accrued liability), BNY Mellon is currently unable to estimate a range of reasonably possible loss. For those matters described here where BNY Mellon is able to estimate a reasonably possible loss, the aggregate range of such reasonably possible loss is up to $990 million in excess of the accrued liability (if any) related to those matters. We do not consider potential recoveries when estimating reasonably possible losses. The following describes certain judicial, regulatory and arbitration proceedings involving BNY Mellon: Mortgage-Securitization Trusts Proceedings The Bank of New York Mellon has been named as a defendant in a number of legal actions brought by MBS investors alleging that the trustee has expansive duties under the governing agreements, including the duty to investigate and pursue breach of representation and warranty claims against other parties to the MBS transactions. Four actions commenced in August 2014, December 2014, December 2015, and February 2017 are pending in New York federal court; one action commenced in November 2011 is pending in the Court of Appeals for the Tenth Circuit; and one action commenced in May 2016 is pending in New York state court. Matters Related to R. Allen Stanford In late December 2005, Pershing LLC (“Pershing”) became a clearing firm for Stanford Group Co. (“SGC”), a registered broker-dealer that was part of a group of entities ultimately controlled by R. Allen Stanford (“Stanford”). Stanford International Bank (“SIB”), also controlled by Stanford, issued certificates of deposit (“CDs”). Some investors allegedly wired funds from their SGC accounts to purchase CDs. In 2009, the Securities and Exchange Commission (“SEC”) charged Stanford with operating a Ponzi scheme in connection with the sale of CDs, and SGC was placed into receivership. Alleged purchasers of CDs have filed two putative class action proceedings against Pershing: one in November 2009 in Texas federal court, and one in May 2016 in New Jersey federal court. Thirteen lawsuits have been filed against Pershing in Louisiana, Florida and New Jersey federal courts in January 2010, January and February 2015, October 2015, and May 2016. The purchasers allege that Pershing, as SGC’s clearing firm, assisted Stanford in a fraudulent scheme and assert contractual, statutory and common law claims. In March 2019, a group of investors filed a putative class action against The Bank of New York Mellon in New Jersey federal court, making the same allegations as in the prior actions brought against Pershing. All of the cases that have been brought in federal court against Pershing and the case brought against The Bank of New York Mellon have been consolidated in Texas federal court for discovery purposes. On Dec. 19, 2019, the Court of Appeals for the Fifth Circuit affirmed the dismissal of six individual federal lawsuits brought under Florida law, which will also apply to four other similarly situated cases. Financial Industry Regulatory Authority, Inc. (“FINRA”) arbitration proceedings also have been initiated by alleged purchasers asserting similar claims. Brazilian Postalis Litigation BNY Mellon Servicos Financeiros DTVM S.A. (“DTVM”), a subsidiary that provides asset services in Brazil, acts as administrator for certain investment funds in which a public pension fund for postal workers called Postalis-Instituto de Seguridade Social dos Correios e Telégrafos (“Postalis”) invested. On Aug. 22, 2014, Postalis sued DTVM in Rio de Janeiro, Brazil for losses related to a Postalis fund for which DTVM is administrator. Postalis alleges that DTVM failed to properly perform duties, including to conduct due diligence of and exert control over the manager. On March 12, 2015, Postalis filed a lawsuit in Rio de Janeiro against DTVM and BNY Mellon Administração de Ativos Ltda. (“Ativos”) alleging failure to properly perform duties relating to another fund of which DTVM is administrator and Ativos is manager. On Dec. 14, 2015, Associacão dos Profissionais dos Correios (“ADCAP”), a Brazilian postal workers association, filed a lawsuit in São Paulo against DTVM and other defendants alleging that DTVM improperly contributed to Postalis investment losses. On March 20, 2017, the lawsuit was dismissed without prejudice, and ADCAP has appealed that decision. On Dec. 17, 2015, Postalis filed three lawsuits in Rio de Janeiro against DTVM and Ativos alleging failure to properly perform duties with respect to investments in several other funds. On Feb. 4, 2016, Postalis filed a lawsuit in Brasilia against DTVM, Ativos and BNY Mellon Alocação de Patrimônio Ltda., an investment management subsidiary, alleging failure to properly perform duties and liability for losses with respect to investments in various funds of which the defendants were administrator and/or manager. On Jan. 16, 2018, the Brazilian Federal Prosecution Service (“MPF”) filed a civil lawsuit in São Paulo against DTVM alleging liability for Postalis losses based on alleged failures to properly perform certain duties as administrator to certain funds in which Postalis invested or as controller of Postalis’s own investment portfolio. On April 18, 2018, the court dismissed the lawsuit without prejudice, and the MPF has appealed that decision. In addition, the Tribunal de Contas da Uniao, an administrative tribunal, has initiated two proceedings with the purpose of determining liability for losses to two investment funds administered by DTVM in which Postalis was the exclusive investor. On Oct. 4, 2019, Postalis and another pension fund filed a request for arbitration in São Paulo against DTVM and Ativos alleging liability for losses to an investment fund for which DTVM was administrator and Ativos was manager. On Oct. 25, 2019, Postalis filed a lawsuit in Rio de Janeiro against DTVM and Ativos, alleging liability for losses in another fund for which DTVM was administrator and Ativos was manager. Brazilian Silverado Litigation DTVM acts as administrator for the Fundo de Investimento em Direitos Creditórios Multisetorial Silverado Maximum (“Silverado Maximum Fund”), which invests in commercial credit receivables. On June 2, 2016, the Silverado Maximum Fund sued DTVM in its capacity as administrator, along with Deutsche Bank S.A. - Banco Alemão in its capacity as custodian and Silverado Gestão e Investimentos Ltda. in its capacity as investment manager. The Fund alleges that each of the defendants failed to fulfill its respective duty, and caused losses to the Fund for which the defendants are jointly and severally liable. German Tax Matters German authorities are investigating past “cum/ex” trading, which involved the purchase of equity securities on or shortly before the dividend date, but settled after that date, potentially resulting in an unwarranted refund of withholding tax. German authorities have taken the view that past cum/ex trading may have resulted in tax avoidance or evasion. European subsidiaries of BNY Mellon have been informed by German authorities about investigations into potential cum/ex trading by certain third-party investment funds, where one of the subsidiaries had acquired entities that served as depositary and/or fund manager for those third-party investment funds. We have received information requests from the authorities relating to pre-acquisition activity and are cooperating fully with those requests. We have not received any tax demand concerning cum/ex trading. In addition, in August 2019, the District Court of Bonn ordered that one of these subsidiaries be joined as a secondary party in connection with the prosecution of unrelated third parties. Trial commenced in September 2019. In connection with the acquisition of the subject entities, we obtained an indemnity for liabilities from the sellers that we intend to pursue as necessary.

Derivative instruments

Derivative instruments	12 Months Ended
Derivative instruments	Dec. 31, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative instruments	Derivative instruments We use derivatives to manage exposure to market risk, including interest rate risk, equity price risk and foreign currency risk, as well as credit risk. Our trading activities are focused on acting as a market-maker for our customers and facilitating customer trades in compliance with the Volcker Rule. The notional amounts for derivative financial instruments express the dollar volume of the transactions; however, credit risk is much smaller. We perform credit reviews and enter into netting agreements and collateral arrangements to minimize the credit risk of derivative financial instruments. We enter into offsetting positions to reduce exposure to foreign currency, interest rate and equity price risk. Use of derivative financial instruments involves reliance on counterparties. Failure of a counterparty to honor its obligation under a derivative contract is a risk we assume whenever we engage in a derivative contract. There were no counterparty default losses recorded in 2019 . Hedging derivatives We utilize interest rate swap agreements to manage our exposure to interest rate fluctuations. We enter into fair value hedges as an interest rate risk management strategy to reduce fair value variability by converting certain fixed rate interest payments associated with available-for-sale securities and long-term debt to floating interest rates. We also utilize interest rate swaps and forward exchange contracts as cash flow hedges to manage our exposure to interest and foreign exchange rate changes. The available-for-sale securities hedged consist of U.S. Treasury bonds, agency and non-agency commercial MBS, sovereign debt, corporate bonds and covered bonds. At Dec. 31, 2019 , $13.7 billion par value of available-for-sale securities were hedged with interest rate swaps designated as fair value hedges that had notional values of $13.7 billion . The fixed rate long-term debt instruments hedged generally have original maturities of five to 30 years . In fair value hedging relationships, debt is hedged with “receive fixed rate, pay variable rate” swaps. At Dec. 31, 2019 , $14.7 billion par value of debt was hedged with interest rate swaps designated as fair value hedges that had notional values of $14.7 billion . In addition, we utilize forward foreign exchange contracts as hedges to mitigate foreign exchange exposures. We use forward foreign exchange contracts as cash flow hedges to convert certain forecasted non-U.S. dollar revenue and expenses into U.S. dollars. We use forward foreign exchange contracts with maturities of 18 months or less as cash flow hedges to hedge our foreign exchange exposure to currencies such as Indian rupee, British pound, Hong Kong dollar, Singapore dollar and Polish zloty revenue and expense transactions in entities that have the U.S. dollar as their functional currency. As of Dec. 31, 2019 , the hedged forecasted foreign currency transactions and designated forward foreign exchange contract hedges were $388 million (notional), with a pre-tax gain of $5 million recorded in accumulated OCI. Approximately $4 million of this gain will be reclassified to earnings over the next 12 months . We also utilize forward foreign exchange contracts as fair value hedges of the foreign exchange risk associated with available-for-sale securities. Forward points are designated as an excluded component and amortized into earnings over the hedge period. The unamortized derivative value associated with the excluded component is recognized in accumulated OCI. At Dec. 31, 2019 , $142 million par value of available-for-sale securities were hedged with foreign currency forward contracts that had a notional value of $142 million . Forward foreign exchange contracts are also used to hedge the value of our net investments in foreign subsidiaries. These forward foreign exchange contracts have maturities of less than one year . The derivatives employed are designated as hedges of changes in value of our foreign investments due to exchange rates. The change in fair market value of these forward foreign exchange contracts is reported within foreign currency translation adjustments in shareholders’ equity, net of tax. At Dec. 31, 2019 , forward foreign exchange contracts with notional amounts totaling $7.9 billion were designated as net investment hedges. In addition to forward foreign exchange contracts, we also designate non-derivative financial instruments as hedges of our net investments in foreign subsidiaries. Those non-derivative financial instruments designated as hedges of our net investments in foreign subsidiaries were all long-term liabilities of BNY Mellon and, at Dec. 31, 2019 , had a combined U.S. dollar equivalent carrying value of $172 million . The following table presents the pre-tax gains (losses) related to our fair value and cash flow hedging activities recognized in the consolidated income statement. Income statement impact of fair value and cash flow hedges Year ended Dec. 31, (in millions) Location of gains (losses) 2019 2018 2017 Interest rate fair value hedges of available-for-sale securities Derivative Interest revenue $ (795 ) $ 284 $ 82 Hedged item Interest revenue 788 (273 ) (97 ) Interest rate fair value hedges of long-term debt Derivative Interest expense 486 (328 ) (197 ) Hedged item Interest expense (483 ) 330 190 Foreign exchange fair value hedges of available-for-sale securities Derivative (a) Other revenue 9 (2 ) — Hedged item Other revenue (8 ) 2 — Cash flow hedge of interest rate risk Gain reclassified from OCI into income Interest expense 7 — — Cash flow hedges of forecasted FX exposures Gain reclassified from OCI into income Trading revenue — — 2 Gain reclassified from OCI into income Other revenue — 2 8 Gain (loss) reclassified from OCI into income Staff expense 3 (4 ) 10 Gain (loss) recognized in the consolidated income statement due to fair value and cash flow hedging relationships $ 7 $ 11 $ (2 ) (a) Includes a gain of $2 million in 2019 and a (loss) of $(1) million in 2018 associated with the amortization of the excluded component. At Dec. 31, 2019 and Dec. 31, 2018 , the remaining accumulated OCI balance associated with the excluded component was de minimis. The following table presents the impact of hedging derivatives used in net investment hedging relationships. Impact of derivative instruments used in net investment hedging relationships (in millions) Gain or (loss) recognized in accumulated OCI on derivatives Year ended Dec. 31, Gain or (loss) reclassified from accumulated OCI into income Year ended Dec. 31, Derivatives in net investment hedging relationships Location of gain or (loss) reclassified from accumulated OCI into income 2019 2018 2017 2019 2018 2017 FX contracts $ (19 ) $ 535 $ (625 ) Net interest revenue $ — $ — $ — The following table presents information on the hedged items in fair value hedging relationships. Hedged items in fair value hedging relationships Carrying amount of hedged asset or liability Hedge accounting basis adjustment increase (decrease) (a) Dec. 31, Dec. 31, (in millions) 2019 2018 2019 2018 Available-for-sale securities (b)(c) $ 13,792 $ 19,201 $ 687 $ (125 ) Long-term debt $ 13,945 $ 16,147 $ 116 $ (453 ) (a) Includes $53 million and $- million of basis adjustment increases on discontinued hedges associated with available-for-sale securities at Dec. 31, 2019 and Dec. 31, 2018 , respectively, and $200 million and $284 million of basis adjustment decreases on discontinued hedges associated with long-term debt at Dec. 31, 2019 and Dec. 31, 2018 , respectively. (b) Excludes hedged items where only foreign currency risk is the designated hedged risk, as the basis adjustments related to foreign currency hedges will not reverse through the consolidated income statement in future periods. The carrying amount excluded for available-for-sale securities was $142 million at Dec. 31, 2019 and $148 million at Dec. 31, 2018 . (c) Carrying amount represents the amortized cost. The following table summarizes the notional amount and carrying values of our total derivative portfolio at Dec. 31, 2019 and Dec. 31, 2018 . Impact of derivative instruments on the balance sheet Notional value Asset derivatives fair value Liability derivatives fair value Dec. 31, Dec. 31, Dec. 31, (in millions) 2019 2018 2019 2018 2019 2018 Derivatives designated as hedging instruments: (a)(b) Interest rate contracts $ 28,365 $ 35,890 $ — $ 23 $ 350 $ 74 Foreign exchange contracts 8,390 6,330 21 266 257 14 Total derivatives designated as hedging instruments $ 21 $ 289 $ 607 $ 88 Derivatives not designated as hedging instruments: (b)(c) Interest rate contracts $ 306,790 $ 248,534 $ 3,690 $ 3,590 $ 3,250 $ 3,116 Foreign exchange contracts 848,961 831,730 5,331 4,807 5,340 5,215 Equity contracts 3,189 927 19 68 5 118 Credit contracts 165 150 — — 4 1 Total derivatives not designated as hedging instruments $ 9,040 $ 8,465 $ 8,599 $ 8,450 Total derivatives fair value (d) $ 9,061 $ 8,754 $ 9,206 $ 8,538 Effect of master netting agreements (e) (5,819 ) (5,939 ) (5,415 ) (6,170 ) Fair value after effect of master netting agreements $ 3,242 $ 2,815 $ 3,791 $ 2,368 (a) The fair value of asset derivatives and liability derivatives designated as hedging instruments is recorded as other assets and other liabilities, respectively, on the consolidated balance sheet. (b) For derivative transactions settled at clearing organizations, cash collateral exchanged is deemed a settlement of the derivative each day. The settlement reduces the gross fair value of derivative assets and liabilities and a corresponding decrease in the effect of master netting agreements, with no impact to the consolidated balance sheet. (c) The fair value of asset derivatives and liability derivatives not designated as hedging instruments is recorded as trading assets and trading liabilities, respectively, on the consolidated balance sheet. (d) Fair values are on a gross basis, before consideration of master netting agreements, as required by ASC 815, Derivatives and Hedging. (e) Effect of master netting agreements includes cash collateral received and paid of $1,022 million and $618 million , respectively, at Dec. 31, 2019 , and $809 million and $1,040 million , respectively, at Dec. 31, 2018 . Trading activities (including trading derivatives) Our trading activities are focused on acting as a market-maker for our customers, facilitating customer trades and risk mitigating economic hedging in compliance with the Volcker Rule. The change in the fair value of the derivatives utilized in our trading activities is recorded in foreign exchange and other trading revenue on the consolidated income statement. The following table presents our foreign exchange and other trading revenue. Foreign exchange and other trading revenue Year ended Dec. 31, (in millions) 2019 2018 2017 Foreign exchange $ 577 $ 663 $ 638 Other trading revenue 77 69 30 Total foreign exchange and other trading revenue $ 654 $ 732 $ 668 Foreign exchange revenue includes income from purchasing and selling foreign currencies and currency forwards, futures and options. Other trading revenue reflects results from trading in cash instruments including fixed income and equity securities and non-foreign exchange derivatives. We also use derivative financial instruments as risk mitigating economic hedges, which are not formally designated as accounting hedges. This includes hedging the foreign currency, interest rate or market risks inherent in some of our balance sheet exposures, such as seed capital investments and deposits, as well as certain investment management fee revenue streams. We also use total return swaps to economically hedge obligations arising from the Company’s deferred compensation plan whereby the participants defer compensation and earn a return linked to the performance of investments they select. The gains or losses on these total return swaps are recorded in staff expense on the consolidated income statement and were a gain of $36 million in 2019 , a loss of $20 million in 2018 and a gain of $26 million in 2017 . We manage trading risk through a system of position limits, a value-at-risk (“VaR”) methodology based on historical simulation and other market sensitivity measures. Risk is monitored and reported to senior management by a separate unit, independent from trading, on a daily basis. Based on certain assumptions, the VaR methodology is designed to capture the potential overnight pre-tax dollar loss from adverse changes in fair values of all trading positions. The calculation assumes a one-day holding period, utilizes a 99% confidence level and incorporates non-linear product characteristics. The VaR model is one of several statistical models used to develop economic capital results, which are allocated to lines of business for computing risk-adjusted performance. VaR methodology does not evaluate risk attributable to extraordinary financial, economic or other occurrences. As a result, the risk assessment process includes a number of stress scenarios based upon the risk factors in the portfolio and management’s assessment of market conditions. Additional stress scenarios based upon historical market events are also performed. Stress tests may incorporate the impact of reduced market liquidity and the breakdown of historically observed correlations and extreme scenarios. VaR and other statistical measures, stress testing and sensitivity analysis are incorporated in other risk management materials. Counterparty credit risk and collateral We assess credit risk of our counterparties through regular examination of their financial statements, confidential communication with the management of those counterparties and regular monitoring of publicly available credit rating information. This and other information is used to develop proprietary credit rating metrics used to assess credit quality. Collateral requirements are determined after a comprehensive review of the credit quality of each counterparty. Collateral is generally held or pledged in the form of cash and/or highly liquid government securities. Collateral requirements are monitored and adjusted daily. Additional disclosures concerning derivative financial instruments are provided in Note 20. Disclosure of contingent features in OTC derivative instruments Certain OTC derivative contracts and/or collateral agreements contain credit-risk contingent features triggered upon a rating downgrade in which the counterparty has the right to request additional collateral or the right to terminate the contracts in a net liability position. The following table shows the aggregate fair value of OTC derivative contracts in net liability positions that contained credit-risk contingent features and the value of collateral that has been posted. Dec. 31, (in millions) 2019 2018 Aggregate fair value of OTC derivatives in net liability positions (a) $ 3,442 $ 2,877 Collateral posted $ 3,671 $ 2,801 (a) Before consideration of cash collateral. The aggregate fair value of OTC derivative contracts containing credit-risk contingent features can fluctuate from quarter to quarter due to changes in market conditions, composition of counterparty trades, new business or changes to the contingent features. The Bank of New York Mellon, our largest banking subsidiary, enters into the substantial majority of our OTC derivative contracts and/or collateral agreements. As such, the contingent features may be triggered if The Bank of New York Mellon’s long-term issuer rating was downgraded. The following table shows the fair value of contracts falling under early termination provisions that were in net liability positions for three key ratings triggers. Potential close-out exposures (fair value) (a) Dec. 31, (in millions) 2019 2018 If The Bank of New York Mellon’s rating changed to: (b) A3/A- $ 56 $ 15 Baa2/BBB $ 608 $ 116 Ba1/BB+ $ 2,084 $ 1,041 (a) The amounts represent potential total close-out values if The Bank of New York Mellon’s long-term issuer rating were to immediately drop to the indicated levels, and do not reflect collateral posted. (b) Represents rating by Moody’s/S&P. If The Bank of New York Mellon’s debt rating had fallen below investment grade on Dec. 31, 2019 and Dec. 31, 2018 , existing collateral arrangements would have required us to post additional collateral of $63 million and $100 million , respectively. Offsetting assets and liabilities The following tables present derivative and financial instruments and their related offsets. There were no derivative instruments or financial instruments subject to a legally enforceable netting agreement for which we are not currently netting. Offsetting of derivative assets and financial assets at Dec. 31, 2019 Gross assets recognized Gross amounts offset in the balance sheet Net assets recognized in the balance sheet Gross amounts not offset in the balance sheet (in millions) (a) Financial instruments Cash collateral received Net amount Derivatives subject to netting arrangements: Interest rate contracts $ 2,394 $ 1,792 $ 602 $ 207 $ — $ 395 Foreign exchange contracts 4,861 4,021 840 44 — 796 Equity and other contracts 9 6 3 — — 3 Total derivatives subject to netting arrangements 7,264 5,819 1,445 251 — 1,194 Total derivatives not subject to netting arrangements 1,797 — 1,797 — — 1,797 Total derivatives 9,061 5,819 3,242 251 — 2,991 Reverse repurchase agreements 112,355 93,794 (b) 18,561 18,554 — 7 Securities borrowing 11,621 — 11,621 11,278 — 343 Total $ 133,037 $ 99,613 $ 33,424 $ 30,083 $ — $ 3,341 (a) Includes the effect of netting agreements and net cash collateral received. The offset related to the OTC derivatives was allocated to the various types of derivatives based on the net positions. (b) Offsetting of reverse repurchase agreements relates to our involvement in the FICC, where we settle government securities transactions on a net basis for payment and delivery through the Fedwire system. Offsetting of derivative assets and financial assets at Dec. 31, 2018 Gross assets recognized Gross amounts offset in the balance sheet Net assets recognized in the balance sheet Gross amounts not offset in the balance sheet (in millions) (a) Financial instruments Cash collateral received Net amount Derivatives subject to netting arrangements: Interest rate contracts $ 2,654 $ 2,202 $ 452 $ 133 $ — $ 319 Foreign exchange contracts 4,409 3,724 685 70 — 615 Equity and other contracts 38 13 25 — — 25 Total derivatives subject to netting arrangements 7,101 5,939 1,162 203 — 959 Total derivatives not subject to netting arrangements 1,653 — 1,653 — — 1,653 Total derivatives 8,754 5,939 2,815 203 — 2,612 Reverse repurchase agreements 112,245 76,040 (b) 36,205 36,205 — — Securities borrowing 10,588 — 10,588 10,286 — 302 Total $ 131,587 $ 81,979 $ 49,608 $ 46,694 $ — $ 2,914 (a) Includes the effect of netting agreements and net cash collateral received. The offset related to the OTC derivatives was allocated to the various types of derivatives based on the net positions. (b) Offsetting of reverse repurchase agreements relates to our involvement in the FICC, where we settle government securities transactions on a net basis for payment and delivery through the Fedwire system. Offsetting of derivative liabilities and financial liabilities at Dec. 31, 2019 Net liabilities recognized in the balance sheet Gross liabilities recognized Gross amounts offset in the balance sheet Gross amounts not offset in the balance sheet (in millions) (a) Financial instruments Cash collateral pledged Net amount Derivatives subject to netting arrangements: Interest rate contracts $ 3,550 $ 1,986 $ 1,564 $ 1,539 $ — $ 25 Foreign exchange contracts 4,873 3,428 1,445 74 — 1,371 Equity and other contracts 5 1 4 2 — 2 Total derivatives subject to netting arrangements 8,428 5,415 3,013 1,615 — 1,398 Total derivatives not subject to netting arrangements 778 — 778 — — 778 Total derivatives 9,206 5,415 3,791 1,615 — 2,176 Repurchase agreements 104,451 93,794 (b) 10,657 10,657 — — Securities lending 718 — 718 694 — 24 Total $ 114,375 $ 99,209 $ 15,166 $ 12,966 $ — $ 2,200 (a) Includes the effect of netting agreements and net cash collateral paid. The offset related to the OTC derivatives was allocated to the various types of derivatives based on the net positions. (b) Offsetting of repurchase agreements relates to our involvement in the FICC, where we settle government securities transactions on a net basis for payment and delivery through the Fedwire system. Offsetting of derivative liabilities and financial liabilities at Dec. 31, 2018 Net liabilities recognized in the balance sheet Gross liabilities recognized Gross amounts offset in the balance sheet Gross amounts not offset in the balance sheet (in millions) (a) Financial instruments Cash collateral pledged Net amount Derivatives subject to netting arrangements: Interest rate contracts $ 3,144 $ 2,508 $ 636 $ 547 $ — $ 89 Foreign exchange contracts 4,747 3,626 1,121 187 — 934 Equity and other contracts 75 36 39 37 — 2 Total derivatives subject to netting arrangements 7,966 6,170 1,796 771 — 1,025 Total derivatives not subject to netting arrangements 572 — 572 — — 572 Total derivatives 8,538 6,170 2,368 771 — 1,597 Repurchase agreements 84,665 76,040 (b) 8,625 8,625 — — Securities lending 997 — 997 937 — 60 Total $ 94,200 $ 82,210 $ 11,990 $ 10,333 $ — $ 1,657 (a) Includes the effect of netting agreements and net cash collateral paid. The offset related to the OTC derivatives was allocated to the various types of derivatives based on the net positions. (b) Offsetting of repurchase agreements relates to our involvement in the FICC, where we settle government securities transactions on a net basis for payment and delivery through the Fedwire system. Secured borrowings The following table presents the contract value of repurchase agreements and securities lending transactions accounted for as secured borrowings by the type of collateral provided to counterparties. Repurchase agreements and securities lending transactions accounted for as secured borrowings Dec. 31, 2019 Dec. 31, 2018 Remaining contractual maturity Total Remaining contractual maturity Total (in millions) Overnight and continuous Up to 30 days 30 days or more Overnight and continuous Up to 30 days 30 days or more Repurchase agreements: U.S. Treasury $ 94,788 $ 10 $ — $ 94,798 $ 76,822 $ — $ — $ 76,822 U.S. government agencies 594 16 — 610 759 — — 759 Agency RMBS 4,234 774 — 5,008 3,184 — 4 3,188 Corporate bonds 266 236 1,617 2,119 416 — 1,413 1,829 Other debt securities 40 188 1,079 1,307 271 — 1,106 1,377 Equity securities 31 99 479 609 163 — 527 690 Total $ 99,953 $ 1,323 $ 3,175 $ 104,451 $ 81,615 $ — $ 3,050 $ 84,665 Securities lending: U.S. government agencies $ 19 $ — $ — $ 19 $ 7 $ — $ — $ 7 Other debt securities 201 — — 201 294 — — 294 Equity securities 498 — — 498 696 — — 696 Total $ 718 $ — $ — $ 718 $ 997 $ — $ — $ 997 Total borrowings $ 100,671 $ 1,323 $ 3,175 $ 105,169 $ 82,612 $ — $ 3,050 $ 85,662 BNY Mellon’s repurchase agreements and securities lending transactions primarily encounter risk associated with liquidity. We are required to pledge collateral based on predetermined terms within the agreements. If we were to experience a decline in the fair value of the collateral pledged for these transactions, we could be required to provide additional collateral to the counterparty, therefore decreasing the amount of assets available for other liquidity needs that may arise. BNY Mellon also offers tri-party collateral agency services in the tri-party repo market where we are exposed to credit risk. In order to mitigate this risk, we require dealers to fully secure intraday credit.

Lines of business

Lines of business	12 Months Ended
Lines of business	Dec. 31, 2019
Segment Reporting [Abstract]
Lines of business	Lines of business We have an internal information system that produces performance data along product and service lines for our two principal businesses and the Other segment. The primary products and services and types of revenue for our principal businesses and a description of the Other segment are presented below. Investment Services business Line of business Primary products and services Primary types of revenue Asset Servicing Custody, accounting, ETF services, middle-office solutions, transfer agency, services for private equity and real estate funds, foreign exchange, securities lending, liquidity/lending services, prime brokerage and data analytics - Asset servicing fees (includes securities lending revenue) - Foreign exchange revenue - Net interest revenue - Financing-related fees Pershing Clearing and custody, investment, wealth and retirement solutions, technology and enterprise data management, trading services and prime brokerage - Clearing services fees Issuer Services Corporate Trust (trustee, administration and agency services and reporting and transparency) and Depositary Receipts (issuer services and support for brokers and investors) - Issuer services fees - Net interest revenue - Foreign exchange revenue Treasury Services Integrated cash management solutions including payments, foreign exchange, liquidity management, receivables processing and payables management and trade finance and processing - Treasury services fees Clearance and Collateral Management U.S. government clearing, global collateral management and tri-party repo - Asset servicing fees - Net interest revenue Investment Management business Line of business Primary products and services Primary types of revenue Asset Management Diversified investment management strategies and distribution of investment products - Investment management fees Wealth Management Investment management, custody, wealth and estate planning and private banking services - Investment management fees Other segment Description Primary types of revenue Includes leasing portfolio, corporate treasury activities, including our securities portfolio, derivatives and other trading activity, corporate and bank-owned life insurance, renewable energy investments and business exits - Net interest revenue - Investment and other income - Net gain (loss) on securities - Other trading revenue Business accounting principles Our business data has been determined on an internal management basis of accounting, rather than the generally accepted accounting principles used for consolidated financial reporting. These measurement principles are designed so that reported results of the businesses will track their economic performance. Business results are subject to reclassification when organizational changes are made. There were no significant organizational changes in 2019 . The results are also subject to refinements in revenue and expense allocation methodologies, which are typically reflected on a prospective basis. The accounting policies of the businesses are the same as those described in Note 1. The results of our businesses are presented and analyzed on an internal management reporting basis. • Revenue amounts reflect fee and other revenue generated by each business. Fee and other revenue transferred between businesses under revenue transfer agreements is included within other revenue in each business. • Revenues and expenses associated with specific client bases are included in those businesses. For example, foreign exchange activity associated with clients using custody products is included in Investment Services. • Net interest revenue is allocated to businesses based on the yields on the assets and liabilities generated by each business. We employ a funds transfer pricing system that matches funds with the specific assets and liabilities of each business based on their interest sensitivity and maturity characteristics. • The provision for credit losses associated with the respective credit portfolios is reflected in each business segment. • Incentives expense related to restricted stock is allocated to the businesses. • Support and other indirect expenses, including services provided between segments that are not subject to a revenue transfer agreement, are allocated to businesses based on internally developed methodologies and reflected in noninterest expense. • Recurring FDIC expense is allocated to the businesses based on average deposits generated within each business. • Litigation expense is generally recorded in the business in which the charge occurs. • Management of the securities portfolio is a shared service contained in the Other segment. As a result, gains and losses associated with the valuation of the securities portfolio are generally included in the Other segment. • Client deposits serve as the primary funding source for our securities portfolio. We typically allocate all interest revenue to the businesses generating the deposits. Accordingly, accretion related to the portion of the securities portfolio restructured in 2009 has been included in the results of the businesses. • Balance sheet assets and liabilities and their related income or expense are specifically assigned to each business. Businesses with a net liability position have been allocated assets. • Goodwill and intangible assets are reflected within individual businesses. The following consolidating schedules present the contribution of our businesses to our overall profitability. For the year ended Dec. 31, 2019 Investment Investment Other Consolidated (dollars in millions) Total fee and other revenue $ 8,894 $ 3,466 (a) $ 888 $ 13,248 (a) Net interest revenue (expense) 3,093 255 (160 ) 3,188 Total revenue 11,987 3,721 (a) 728 16,436 (a) Provision for credit losses (16 ) (1 ) (8 ) (25 ) Noninterest expense 8,049 2,643 208 10,900 Income before income taxes $ 3,954 $ 1,079 (a) $ 528 $ 5,561 (a) Pre-tax operating margin (b) 33 % 29 % N/M 34 % Average assets $ 267,135 $ 30,697 $ 48,123 $ 345,955 (a) Total fee and other revenue includes net income from consolidated investment management funds of $30 million , representing $56 million of income and income attributable to noncontrolling interests of $26 million . Total revenue and income before income taxes are net of noncontrolling interests of $26 million . (b) Income before income taxes divided by total revenue. For the year ended Dec. 31, 2018 Investment Investment Other Consolidated (dollars in millions) Total fee and other revenue $ 8,926 $ 3,781 (a) $ 85 $ 12,792 (a) Net interest revenue (expense) 3,372 303 (64 ) 3,611 Total revenue 12,298 4,084 (a) 21 16,403 (a) Provision for credit losses 1 3 (15 ) (11 ) Noninterest expense 8,058 2,818 334 11,210 (b) Income (loss) before income taxes $ 4,239 $ 1,263 (a) $ (298 ) $ 5,204 (a)(b) Pre-tax operating margin (c) 34 % 31 % N/M 32 % Average assets $ 262,747 $ 31,446 $ 49,581 $ 343,774 (a) Total fee and other revenue include a net loss from consolidated investment management funds of $1 million , representing $13 million of losses and a loss attributable to noncontrolling interests of $12 million . Total revenue and income before income taxes are net of a loss attributable to noncontrolling interests of $12 million . (b) Noninterest expense and income before income taxes include a loss attributable to noncontrolling interests of $1 million related to other consolidated subsidiaries. (c) Income before income taxes divided by total revenue. For the year ended Dec. 31, 2017 Investment Investment Other Consolidated (dollars in millions) Total fee and other revenue $ 8,527 $ 3,668 (a) $ 7 $ 12,202 (a) Net interest revenue (expense) 3,058 329 (79 ) 3,308 Total revenue (loss) 11,585 3,997 (a) (72 ) 15,510 (a) Provision for credit losses (7 ) 2 (19 ) (24 ) Noninterest expense 7,747 2,854 347 10,948 (b) Income (loss) before income taxes $ 3,845 $ 1,141 (a) $ (400 ) $ 4,586 (a)(b) Pre-tax operating margin (c) 33 % 29 % N/M 30 % Average assets $ 254,646 $ 31,450 $ 57,752 $ 343,848 (a) Total fee and other revenue includes net income from consolidated investment management funds of $37 million , representing $70 million of income and income attributable to noncontrolling interests of $33 million . Total revenue and income before income taxes are net of noncontrolling interests of $33 million . (b) Noninterest expense and income before income taxes include a loss attributable to noncontrolling interest of $9 million related to other consolidated subsidiaries. (c) Income before taxes divided by total revenue.

International operations

International operations	12 Months Ended
International operations	Dec. 31, 2019
Segments, Geographical Areas [Abstract]
International operations	International operations International activity includes Investment Services and Investment Management fee revenue generating businesses, foreign exchange trading activity, loans and other revenue producing assets and transactions in which the customer is domiciled outside of the United States and/or the international activity is resident at an international entity. Due to the nature of our international and domestic activities, it is not possible to precisely distinguish our international operations between internationally and domestically domiciled customers. As a result, it is necessary to make certain subjective assumptions such as: • Income from international operations is determined after internal allocations for interest revenue, taxes, expenses and provision for credit losses. • Expense charges to international operations include those directly incurred in connection with such activities, as well as an allocable share of general support and overhead charges. Total assets, total revenue, income before income taxes and net income of our international operations are shown in the table below. International operations International Total International Total Domestic (in millions) Europe, the Middle East and Africa Asia-Pacific region Other Total 2019 Total assets at period end (a) $ 74,504 (b) $ 36,347 $ 2,636 $ 113,487 $ 268,021 $ 381,508 Total revenue 3,833 (b) 1,161 737 5,731 10,731 16,462 Income before income taxes 1,447 548 506 2,501 3,086 5,587 Net income 1,116 423 390 1,929 2,538 4,467 2018 Total assets at period end (a) $ 74,982 (b) $ 23,199 $ 1,483 $ 99,664 $ 263,209 $ 362,873 Total revenue 4,252 (b) 1,103 684 6,039 10,353 16,392 Income before income taxes 1,694 564 455 2,713 2,479 5,192 Net income 1,345 448 361 2,154 2,100 4,254 2017 Total assets at period end (a) $ 88,490 (b) $ 20,676 $ 1,737 $ 110,903 $ 260,855 $ 371,758 Total revenue 3,982 (b) 997 610 5,589 9,954 15,543 Income before income taxes 1,497 538 296 2,331 2,279 4,610 Net income 1,186 426 234 1,846 2,268 4,114 (a) Total assets include long-lived assets, which are not considered by management to be significant in relation to total assets. Long-lived assets are primarily located in the U.S. (b) Includes assets of approximately $30.8 billion , $30.6 billion and $32.9 billion and revenue of approximately $2.6 billion , $2.6 billion and $2.4 billion in 2019, 2018 and 2017, respectively, of international operations domiciled in the UK, which is 8% , 8% and 9% of total assets and 16% , 16% and 15% of total revenue, respectively.

Supplemental information to the

Supplemental information to the Consolidated Statement of Cash Flows	12 Months Ended
	Dec. 31, 2019
Supplemental Cash Flow Information [Abstract]
Supplemental information to the Consolidated Statement of Cash Flows	Supplemental information to the Consolidated Statement of Cash Flows Non-cash investing and financing transactions that, appropriately, are not reflected in the consolidated statement of cash flows are listed below. Non-cash investing and financing transactions Year ended Dec. 31, (in millions) 2019 2018 2017 Transfers from loans to other assets for other real estate owned $ 2 $ 2 $ 3 Change in assets of consolidated investment management funds 16 268 500 Change in liabilities of consolidated investment management funds 1 — 313 Change in nonredeemable noncontrolling interests of consolidated investment management funds 1 215 302 Securities purchased not settled 497 227 112 Securities sold not settled — 187 587 Securities matured not settled — — 70 Available-for-sale securities transferred to trading assets — 963 — Held-to-maturity securities transferred to available-for-sale — 1,087 74 Premises and equipment/capitalized software funded by finance lease obligations 14 26 347 Premises and equipment/operating lease obligations 1,754 (a) — — Investment redemptions not settled 20 — — (a) Includes $1,244 million related to the adoption of ASU 2016-02, Leases, and $510 million related to new or modified leases.

Summary of significant accoun_2

Summary of significant accounting and reporting policies (Policies)	12 Months Ended
	Dec. 31, 2019
Accounting Policies [Abstract]
Nature of operations	Nature of operations BNY Mellon is a global leader in providing a broad range of financial products and services in domestic and international markets. Through our two principal businesses, Investment Services and Investment Management, we serve institutions, corporations and high-net-worth individuals. See Note 24 for the primary products and services of our principal businesses and other information.
Basis of presentation	Basis of presentation The accounting and financial reporting policies of BNY Mellon, a global financial services company, conform to U.S. generally accepted accounting principles (“GAAP”) and prevailing industry practices.
Reclassifications	Certain immaterial reclassifications have been made to prior periods to place them on a basis comparable with current period presentation.
Use of estimates	Use of estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates based upon assumptions about future economic and market conditions which affect reported amounts and related disclosures in our financial statements. Our most significant estimates pertain to our allowance for loan losses and lending-related commitments, fair value of financial instruments and derivatives, goodwill and other intangibles and litigation and regulatory contingencies. Although our current estimates contemplate current conditions and how we expect them to change in the future, it is reasonably possible that actual conditions could be worse than anticipated in those estimates, which could materially affect our results of operations and financial condition.
Foreign currency translation	Foreign currency translation
Acquired businesses	Acquired businesses The income statement and balance sheet include results of acquired businesses accounted for under the acquisition method of accounting pursuant to Accounting Standards Codification (“ASC”) 805, Business Combinations and equity investments from the dates of acquisition. Contingent purchase consideration is measured at its fair value and recorded on the purchase date. Any subsequent changes in the fair value of a contingent consideration liability are recorded through the income statement.
Consolidation	Consolidation We evaluate an entity for possible consolidation in accordance with ASC 810, Consolidation . We first determine whether or not we have variable interests in the entity, which are investments or other interests that absorb portions of an entity’s expected losses or receive portions of the entity’s expected returns. Our variable interests may include decision-maker or service provider fees, direct and indirect investments and investments made by related parties, including related parties under common control. If it is determined that we do not have a variable interest in the entity, no further analysis is required and the entity is not consolidated. If we hold a variable interest in the entity, further analysis is performed to determine if the entity is a variable interest entity (“VIE”) or a voting model entity (“VME”). We consider the underlying facts and circumstances of individual entities when assessing whether or not an entity is a VIE. An entity is determined to be a VIE if the equity investors: • do not have sufficient equity at risk for the entity to finance its activities without additional subordinated financial support; or • lack one or more of the following characteristics of a controlling financial interest: • the power, through voting rights or similar rights, to direct the activities of an entity that most significantly impact the entity’s economic performance; • the obligation to absorb the expected losses of the entity; and • the right to receive the expected residual returns of the entity. We reconsider and reassess whether or not we are the primary beneficiary of a VIE when governing documents or contractual arrangements are changed that would reallocate the obligation to absorb expected losses or receive expected residual returns between BNY Mellon and the other investors. This could occur when BNY Mellon disposes of its variable interests in the fund, when additional variable interests are issued to other investors or when we acquire additional variable interests in the VIE. We consolidate a VIE if it is determined that we have a controlling financial interest in the entity. We have a controlling financial interest in a VIE when we have both (1) the power to direct the activities of the VIE that most significantly impact the VIE’s economic performance and (2) the obligation to absorb losses or the right to receive benefits of the VIE that could potentially be significant to that VIE. For entities that do not meet the definition of a VIE, the entity is considered a VME. We consolidate these entities if we can exert control over the financial and operating policies of an investee, which can occur if we have a 50% or more voting interest in the entity. See Note 14 for additional disclosures related to our variable interests.
Equity method investments, including renewable energy investments	Equity method investments, including renewable energy investments Equity investments of less than a majority but at least 20% ownership are accounted for by the equity method and included in other assets. Earnings on these investments are reflected as investment services fees, investment management and performance fees or investment and other income, as appropriate, in the period earned. A loss in value of an equity investment that is determined to be other-than-temporary is recognized by reducing the carrying value of the equity investment to its fair value. Renewable energy investment projects through limited liability companies are accounted for using the equity method of accounting. The hypothetical liquidation at book value (“HLBV”) methodology is used to determine the pre-tax loss that is recognized in each period. HLBV estimates the liquidation value at the beginning and end of each period, with the difference recognized as the amount of loss under the equity method. The pre-tax losses are reported in investment and other income on the income statement. The corresponding tax benefits and credits are recorded as a reduction to provision for income taxes on the income statement. The pre-tax losses, tax benefits and credits are included in our projected annual effective tax rate.
Restricted cash and securities	Restricted cash and securities Cash and securities may be segregated under federal and other regulatory requirements and consists of excess client funds held by our broker-dealer entities. Restricted cash is included in interest-bearing deposits with banks on the balance sheet and with
Securities purchased under resale agreements and securities sold under repurchase agreement	Securities purchased under resale agreements and securities sold under repurchase agreements Securities purchased under resale agreements and securities sold under repurchase agreements are accounted for as collateralized financings. Generally, these agreements are recorded at the amounts at which the securities will be subsequently resold or repurchased, plus accrued interest. Securities purchased under resale agreements are fully collateralized with high-quality liquid securities. Collateral requirements are monitored and additional collateral is received or provided, as required. As such, these transactions carry minimal credit risk and are not allocated an allowance for credit losses. Where an enforceable netting agreement exists, resale and repurchase agreements executed with the same counterparty and the same maturity date are reported on a net basis on the balance sheet.
Securities - Debt & Equity	Securities – Debt Debt securities are classified as available-for-sale, held-to-maturity or trading securities when they are purchased. Debt securities are classified as available-for-sale securities when we intend to hold the securities for an indefinite period of time or when the securities may be used for tactical asset/liability purposes and may be sold from time to time to effectively manage interest rate exposure, prepayment risk and liquidity needs. Debt securities are classified as held-to-maturity securities when we intend and have the ability to hold them until maturity. Debt securities are classified as trading securities when our intention is to resell the securities. Available-for-sale securities are measured at fair value. The difference between fair value and amortized cost representing unrealized gains or losses on assets classified as available-for-sale, are recorded net of tax as an addition to or deduction from OCI, unless a security is deemed to have other-than-temporary impairment (“OTTI”). Realized gains and losses on sales of available-for-sale securities are reported on the income statement. The cost of debt securities sold is determined on a specific identification method. Held-to-maturity securities are measured at amortized cost. Trading securities are measured at fair value and included in trading assets on the balance sheet. Trading revenue includes both realized and unrealized gains and losses. The liability incurred on short-sale transactions, representing the obligation to deliver securities, is included in trading liabilities at fair value. Income on securities purchased is adjusted for amortization of premium and accretion of discount on a level yield basis, generally over their contractual life. We routinely conduct periodic reviews to identify and evaluate each security not measured at fair value through earnings to determine whether OTTI has occurred. We examine various factors when determining whether an impairment, representing the fair value of a security being below its amortized cost, is other-than-temporary. The following are examples of factors that we consider: • The length of time and the extent to which the fair value has been less than the amortized cost basis; • Whether management has an intent to sell the security; • Whether the decline in fair value is attributable to specific conditions, such as conditions in an industry or in a geographic area, affecting a particular investment; • Whether a debt security has been downgraded by a rating agency; • Whether a debt security exhibits cash flow deterioration; and • For each non-agency residential mortgage-backed security (“RMBS”), we compare the remaining credit enhancement that protects the individual security from losses against the projected losses of principal and/or interest expected to come from the underlying mortgage collateral, to determine whether such credit losses might directly impact the relevant security. When we do not intend to sell the security and it is more likely than not that we will not be required to sell the security prior to recovery of its cost basis, the credit component of an OTTI of a debt security is recognized in earnings and the non-credit component is recognized in OCI. For held-to-maturity debt securities, the amount of OTTI recorded in OCI for the non-credit portion of a previous OTTI is amortized prospectively, as an increase to the carrying amount of the security, over the remaining life of the security on the basis of the timing of future estimated cash flows of the securities. The determination of whether a credit loss exists is based on the best estimate of the present value of cash flows to be collected from the debt security. Generally, cash flows are discounted at the effective interest rate implicit in the debt security at the time of acquisition. For debt securities that are beneficial interests in securitized financial assets and are not high credit quality, ASC 325, Investments - Other, provides that cash flows be discounted at the current yield used to accrete the beneficial interest. If we intend to sell the security or it is more likely than not that we will be required to sell the security prior to recovery of its cost basis, the credit and non-credit components of OTTI are recognized in earnings and subsequently accreted to interest income on an effective yield basis over the life of the security. The accounting policy for the determination of the fair value of financial instruments has been identified as a “critical accounting estimate” as it requires us to make numerous assumptions based on available market data. See Note 4 for these disclosures. Securities – Equity Investments in equity securities that do not result in consolidation and are not accounted for under the equity method are measured at fair value with changes in the fair value recognized through earnings, unless one of two available exceptions applies. The first exception, a scope exception, allows Federal Reserve Bank stock, Federal Home Loan Bank stock and exchange memberships to remain accounted for at cost, less impairment. The second practicability exception is an election available for equity investments that do not have readily determinable fair values. For certain investments where the Company has chosen the practicability exception, such investments are accounted for in other assets on the balance sheet at cost adjusted for impairment, if any, plus or minus observable price changes in orderly transactions for an identical or similar investment of the same issuer with any such changes reflected in investment and other income. Equity securities with readily determinable fair values are classified in trading assets with changes in fair value reflected in foreign exchange and other trading revenue.
Loans	Loans Loans are reported at amortized cost, net of any unearned income and deferred fees and costs. Certain loan origination and upfront commitment fees, as well as certain direct loan origination and commitment costs, are deferred and amortized as a yield adjustment over the lives of the related loans. Loans held for sale are carried at the lower of cost or fair value. A modified loan is considered a troubled debt restructuring (“TDR”) if the debtor is experiencing financial difficulties and the creditor grants a concession to the debtor that would not otherwise be considered. A TDR may include a transfer of real estate or other assets from the debtor to the creditor, or a modification of the term of the loan. TDRs are accounted for as impaired loans (see the Nonperforming assets policy).
Nonperforming assets	Nonperforming assets Commercial loans are placed on nonaccrual status when principal or interest is past due 90 days or more, or when there is reasonable doubt that interest or principal will be collected. When a first or second lien residential mortgage loan reaches 90 days delinquent, it is subject to an impairment test and placed on nonaccrual status. When a loan is placed on nonaccrual status, previously accrued and uncollected interest is reversed against current period interest revenue. Interest receipts on nonaccrual and impaired loans are recognized as interest revenue or are applied to principal when we believe the ultimate collectability of principal is in doubt. Nonaccrual loans generally are restored to an accrual basis when principal and interest become current and remain current for a specified period. A loan is considered to be impaired when it is probable that we will be unable to collect all principal and interest amounts due according to the contractual terms of the loan agreement. An impairment allowance is measured based upon the loan’s market value, the present value of expected future cash flows, discounted at the loan’s initial effective interest rate, or at fair value of the collateral if the loan is collateral dependent. If the loan valuation is less than the recorded value of the loan, an impairment allowance is established by a provision for credit loss
Allowance for loan losses and allowance for lending-related commitments	Allowance for loan losses and allowance for lending-related commitments The allowance for loan losses, presented as a valuation allowance to loans, and the allowance for lending-related commitments recorded in other liabilities, are referred to as BNY Mellon’s allowance for credit losses. The accounting policy for determining the allowances has been identified as a “critical accounting estimate” as it requires us to make numerous complex and subjective estimates and assumptions relating to amounts which are inherently uncertain. The allowance for loan losses is maintained to absorb losses inherent in the loan portfolio as of the balance sheet date based on our judgment. The allowance determination methodology is designed to provide procedural discipline in assessing the appropriateness of the allowance. Credit losses are charged against the allowance. Recoveries are added to the allowance. The methodology for determining the allowance for lending-related commitments considers the same factors as the allowance for loan losses, as well as an estimate of the probability of drawdown at default. We utilize a quantitative methodology and qualitative framework for determining the allowance for loan losses and the allowance for lending-related commitments. Within this qualitative framework, management applies judgment when assessing internal risk factors and environmental factors to compute an additional allowance for each component of the loan portfolio. The components of the allowance for loan losses and the allowance for lending-related commitments are inclusive of the qualitative allowance framework and consist of the following three elements: • an allowance for impaired credits of $1 million or greater; • an allowance for higher risk-rated credits and pass-rated credits; and • an allowance for residential mortgage loans. Our lending is primarily to institutional customers. As a result, our loans are generally larger than $1 million . Therefore, the first element, impaired credits, is based on individual analysis of all impaired loans of $1 million and greater. The allowance is measured by the difference between the recorded value of impaired loans and their impaired value. Impaired value is either the present value of the expected future cash flows from the borrower, the market value of the loan, or the fair value of the collateral, if the loan is collateral dependent. The second element, higher risk-rated credits and pass-rated credits, is based on our incurred loss model. Individual credit analyses are performed on such loans before being assigned a credit rating. All borrowers are collectively evaluated based on their credit rating. The loss inherent in each loan incorporates the borrower’s credit rating, facility rating and maturity. The loss given default, derived from the facility rating, incorporates a recovery expectation and an estimate of the use of the facility at default (usage given default). The borrower’s probability of default is derived from the associated credit rating. Borrower ratings are reviewed at least annually and are periodically mapped to third-party databases, including rating agency and default and recovery databases, to ensure ongoing consistency and validity. Higher risk-rated credits are reviewed quarterly. The third element, the allowance for residential mortgage loans, is determined by segregating mortgage pools into delinquency periods ranging from current through foreclosure. Each of these delinquency periods is assigned a probability of default. A specific loss given default is assigned for each mortgage pool. We assign all residential mortgage pools, except home equity lines of credit, a probability of default and loss given default based on default and loss data derived from internal historical data related to our residential mortgage portfolio. The resulting incurred loss factor (the probability of default multiplied by the loss given default) is applied against the loan balance to determine the allowance held for each pool. This approach is applied to the other residential mortgage portfolio (a relatively small sub-segment of our mortgage loans). The allowance for wealth management loans and mortgages originated by our Wealth Management business (the majority of mortgage loans held) is assessed using the second element described above. For home equity lines of credit, probability of default and loss given default are based on external data from third-party databases due to the small size of the portfolio and insufficient internal data. The qualitative framework is used to determine an additional allowance for each portfolio based on the factors below: Internal risk factors: • Ratio of nonperforming loans to total non-margin loans; • Ratio of criticized assets to total loans and lending-related commitments; • Borrower concentration; and • Significant concentrations in high risk industries and countries. Environmental risk factors: • U.S. non-investment grade default rate; • Unemployment rate; and • Change in real gross domestic product. The objective of the qualitative framework is to capture incurred losses that may not have been fully captured in the quantitative reserve, which is based primarily on historical data. Management determines the qualitative allowance for each period based on judgment informed by consideration of internal and external risk factors and other considerations that may be deemed relevant during the period. Once determined in the aggregate, our qualitative allowance is then allocated to each of our loan classes based on the respective classes’ quantitative allowance balances with the allocations adjusted, when necessary, for class specific risk factors. For each risk factor, we calculate the minimum and maximum values, and percentiles in-between, to evaluate the distribution of our historical experience. The distribution of historical experience is compared to the risk factor’s current quarter observed experience to assess the current risk inherent in the portfolio and overall direction/trend of a risk factor relative to our historical experience. Based on this analysis, we assign a risk level–no impact, low, moderate, high and elevated–to each risk factor for the current quarter. Management assesses the impact of each risk factor to determine an aggregate risk level. We do not quantify the impact of any particular risk factor. Management’s assessment of the risk factors, as well as the trend in the quantitative allowance, supports management’s judgment for the overall required qualitative allowance. A smaller qualitative allowance may be required when our quantitative allowance has reflected incurred losses associated with the aggregate risk level. A greater qualitative allowance may be required if our quantitative allowance does not yet reflect the incurred losses associated with the aggregate risk level.
Premises and equipment	Premises and equipment Premises and equipment are carried at cost less accumulated depreciation and amortization. Depreciation and amortization is computed using the straight-line method over the estimated useful life of the owned asset and, for leasehold improvements, over the lesser of the remaining term of the leased facility or the estimated economic life of the improvement. For owned and capitalized assets, estimated useful lives range from 2 to 40 years
Leasing	Leasing We determine if an arrangement is a lease at inception. Right-of-use (“ROU”) assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments. The ROU assets and lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. For all leases, we use a discount rate that represents a collateralized incremental borrowing rate based on similar terms and information available at commencement date of the lease in determining the present value of lease payments. In addition to the lease payments, the determination of an ROU asset may also include certain adjustments related to lease incentives and initial direct costs incurred. Options to extend or terminate a lease are included in the determination of the ROU asset and lease liability only when it is reasonably certain that we will exercise that option. Lease expense for operating leases is recognized on a straight-line basis over the lease term, while the lease expense for finance leases is recognized using the effective interest method. ROU assets are reviewed for impairment when events or circumstances indicate that the carrying amount may not be recoverable. For operating leases, if deemed impaired, the ROU asset is written down and the remaining balance is subsequently amortized on a straight-line basis which results in lease expense recognition that is similar to finance leases. For all leases, we have elected to account for the contractual lease and non-lease components as a single lease component and include them in the calculation of the lease liability. The non-lease variable components, such as maintenance expense and other variable costs including non-index or rate escalations, have been excluded from the calculation. Additionally, for certain equipment leases, we apply a portfolio approach to account for the operating lease ROU assets and liabilities. For subleasing activities, the rental income is reported as part of net occupancy expense, as this activity is not a significant business activity and is part of the Company’s customary business practice. For direct finance leases, unearned revenue is accreted over the lives of the leases in decreasing amounts to provide a constant rate of return on the net investment in the leases. We have leveraged lease transactions that were entered into prior to Dec. 31, 2018. These leases are grandfathered under ASC 842, Leases, which became effective Jan. 1, 2019, and will continue to be accounted for under the prior guidance unless the leases are subsequently modified. Revenue on leveraged leases is recognized on a basis to achieve a constant yield on the outstanding investment in the lease, net of the related deferred tax liability, in the years in which the net investment is positive. Gains and losses on residual values of leased equipment sold are included in investment and other income. Impairment of leveraged lease residual values that is deemed other-than-temporary is reflected in net interest revenue. Considering the nature of these leases and the number of significant assumptions, there is risk associated with the income recognition on these leases should any of the assumptions change materially in future periods.
Software	Software We capitalize costs relating to acquired software and internal-use software development projects that provide new or significantly improved functionality. We capitalize projects that are expected to result in longer-term operational benefits, such as replacement systems or new applications that result in significantly increased operational efficiencies or functionality. All other costs incurred in connection with an internal-use software project are expensed as incurred. Capitalized software is recorded in other assets on the balance sheet. We record amortization of capitalized software in software and equipment expense on the income statement.
Identified intangible assets and goodwill	Identified intangible assets and goodwill Identified intangible assets with estimable lives are amortized in a pattern consistent with the assets’ identifiable cash flows or using a straight-line method over their remaining estimated benefit periods if the pattern of cash flows is not estimable. Intangible assets with estimable lives are reviewed for possible impairment when events or changed circumstances may affect the underlying basis of the asset. Goodwill and intangibles with indefinite lives are not amortized, but are assessed annually for impairment, or more often if events and circumstances indicate it is more likely than not they may be impaired and to determine if the lives are no longer indefinite and should be amortized. The amount of goodwill impairment is determined by the excess of the carrying value of the reporting unit over its fair value. The accounting policy for valuing and impairment testing of identified intangible assets and goodwill has been identified as a “critical accounting estimate” as it requires us to make numerous complex and subjective estimates. See Note 7 for additional disclosures related to goodwill and intangible assets.
Investments in qualified affordable housing projects	Investments in qualified affordable housing projects Investments in qualified affordable housing projects through a limited liability entity are accounted for utilizing the proportional amortization method. Under the proportional amortization method, the initial cost of the investment is amortized to the provision for income taxes in proportion to the tax credits and other tax benefits received. The net investment performance, including tax credits and other benefits received, is recognized in the income statement as a component of the provision for income taxes. Additionally, the value of the commitments to fund qualified affordable housing projects is included in other assets on the balance sheet and a liability is recorded for the unfunded portion.
Seed capital	Seed capital Seed capital investments are generally classified as other assets and carried at fair value. Unrealized gains and losses on seed capital investments are recorded in investment and other income. Certain risk retention investments in our collateralized loan obligations (“CLOs”) are classified as available-for-sale securities.
Noncontrolling interests	Noncontrolling interests Noncontrolling interests included in permanent equity are adjusted for the income or loss attributable to the noncontrolling interest holders and any distributions to those shareholders. Redeemable noncontrolling interests are reported as temporary equity. We recognize changes in the redemption value of the redeemable noncontrolling interests as they occur and adjust the carrying value to be equal to the redemption value.
Fee revenue	Fee revenue Investment Services and Investment Management revenue is based on terms specified in a contract with a customer, and excludes any amounts collected on behalf of third parties. Revenue is recognized when, or as, a performance obligation is satisfied by transferring control of a good or service to a customer. A performance obligation may be satisfied over time or at a point in time. Revenue from a performance obligation satisfied over time is recognized by measuring our progress in satisfying the performance obligation in a manner that reflects the transfer of goods and services to the customer. Revenue from a performance obligation satisfied at a point in time is recognized at the point in time the customer obtains control of the promised good or service. The amount of revenue recognized reflects the consideration we expect to be entitled to in exchange for the promised goods and services. Taxes assessed by a governmental authority, that are both imposed on, and concurrent with, a specific revenue-producing transaction, are collected from a customer and are excluded from revenue. Performance fees are recognized in the period in which the performance fees are earned and become determinable. Performance fees are constrained until all uncertainties are resolved and reversal of previously recorded amounts is not probable. Performance fees are generally calculated as a percentage of the applicable portfolio’s performance in excess of a benchmark index or a peer group’s performance. When a portfolio underperforms its benchmark or fails to generate positive performance, subsequent years’ performance must generally exceed this shortfall prior to fees being earned. Amounts billable, which are subject to a clawback if future performance thresholds in current or future years are not met, are not recognized since the fees are potentially uncollectible. These fees are recognized when it is determined that they will be collected. When a multi-year performance contract provides that fees earned are billed ratably over the performance period, only the portion of the fees earned that are non-refundable are recognized. Additionally, we recognize revenue from non-refundable, implementation fees under outsourcing contracts using a straight-line method, commencing in the period the ongoing services are performed through the expected term of the contractual relationship. Incremental direct set-up costs of implementation, up to the related customer margin or minimum fee revenue amount, are deferred and amortized over the same period that the related implementation fees are recognized. If a client terminates an outsourcing contract prematurely, the unamortized deferred incremental direct set-up costs and the unamortized deferred implementation fees related to that contract are recognized in the period the contract is terminated. We record foreign exchange and other trading revenue, financing-related fees and other revenue when the services are provided and earned based on contractual terms, when amounts are determined and collectability is reasonably assured.
Net interest revenue	Net interest revenue Revenue on interest-earning assets and expense on interest-bearing liabilities are recognized based on the effective yield of the related financial instrument. The amortization of premiums and accretion of discounts are included in interest revenue and are adjusted for prepayments when they occur, such that, the effective yield remains constant throughout the contractual life of the security. Negative interest incurred on assets or charged on liabilities is presented as contra interest income and contra expense, respectively.
Pension	Pension The measurement date for BNY Mellon’s pension plans is December 31. Plan assets are determined based on fair value generally representing observable market prices. The projected benefit obligation is determined based on the present value of projected benefit distributions at an assumed discount rate. The discount rate utilized is based on the yield curves of high-quality corporate bonds available in the marketplace. The net periodic pension expense or credit includes service costs (if applicable), interest costs based on an assumed discount rate, an expected return on plan assets based on an actuarially derived market-related value, amortization of prior service cost and amortization of prior years’ actuarial gains and losses. Actuarial gains and losses include gains or losses related to changes in the amount of the projected benefit obligation or plan assets resulting from demographic or investment experience different than assumed, changes in the discount rate or other assumptions. To the extent an actuarial gain or loss exceeds 10% of the greater of the projected benefit obligation or the market-related value of plan assets, the excess is generally recognized over the future service periods of active employees. Benefit accruals under the U.S. pension plans and the largest foreign pension plan in the United Kingdom (“UK”) are frozen. Future unrecognized actuarial gains and losses for these frozen plans that exceed a threshold amount are amortized over the average future life expectancy of plan participants with a maximum of 15 years . Our expected long-term rate of return on plan assets is based on anticipated returns for each applicable asset class. Anticipated returns are weighted for the expected allocation for each asset class and are based on forecasts for prospective returns in the equity and fixed-income markets, which should track the long-term historical returns for these markets. We also consider the growth outlook for U.S. and global economies, as well as current and prospective interest rates. The market-related value utilized to determine the expected return on plan assets is based on the fair value of plan assets adjusted for the difference between expected returns and actual performance of plan assets. The difference between actual experience and expected returns on plan assets is included as an adjustment in the market-related value over a five -year period.
Stock-based compensation	Stock-based compensation Compensation expense relating to share-based payments is recognized in staff expense on the income statement, on a straight-line basis, over the applicable vesting period. Certain stock compensation grants vest when the employee retires. New grants with this feature are expensed by the first date the employee is eligible to retire. We estimate forfeitures when recording compensation cost related to share-based payment awards.
Severance	Severance BNY Mellon provides separation benefits for U.S.-based employees through The Bank of New York Mellon Corporation Supplemental Unemployment Benefit Plan. These benefits are provided to eligible employees separated from their jobs for business reasons not related to individual performance. Basic separation benefits are generally based on the employee’s years of continuous benefited service. Severance for employees based outside of the U.S. is determined in accordance with local agreements and legal requirements. Severance expense is recorded when management commits to an action that will result in separation and the amount of the liability can be reasonably estimated.
Income taxes	Income taxes
Derivative financial instruments	Derivative financial instruments Derivatives are recorded on the balance sheet at fair value and include futures, forwards, interest rate swaps, foreign currency swaps and options and similar products. Derivatives in an unrealized gain position are recognized as assets while derivatives in unrealized loss position are recognized as liabilities. Derivatives are reported net by counterparty and after consideration of cash collateral, to the extent subject to legally enforceable netting agreements. Derivatives designated and effective in qualifying hedging relationships are classified in other assets or other liabilities on the balance sheet. All other derivatives are classified within trading assets or trading liabilities on the balance sheet. Gains and losses on trading derivatives are generally included in foreign exchange and other trading revenue. We enter into various derivative financial instruments for non-trading purposes primarily as part of our asset/liability management process. These non-trading derivatives are designated as one of three types of hedge activities: fair value, cash flow or net investment hedges. Gains and losses on derivatives associated with fair value hedges are recorded in income as well as any change in the value of the related hedged item associated with the designated risks being hedged. Gains and losses on cash flow hedges are recorded in OCI, until reclassified into earnings in the same period the hedged item impacts earnings. Foreign currency transaction gains and losses related to a hedged net investment in a foreign operation, net of their tax effect, are recorded with cumulative foreign currency translation adjustments within OCI. To qualify for hedge accounting, each hedge relationship is required to be highly effective at reducing the risk associated with the exposure being hedged, both prospectively and retrospectively. We formally document all relationships including hedging instruments and hedged items, as well as our risk management objectives and strategy for undertaking each hedging transaction. At inception, the potential cause of ineffectiveness related to each of our hedges is assessed to determine if we can expect the hedge to be highly effective over the life of the transaction. At hedge inception, we document the methodology to be utilized for evaluating effectiveness on an ongoing basis, and we monitor ongoing hedge effectiveness at least quarterly. For qualifying fair value hedges, changes in the fair value of the derivative, and changes in the value of the hedged item associated with the designated risks being hedged, are recognized in earnings. Certain amounts excluded from the assessment of effectiveness are recorded in OCI and recognized in earnings through an amortization approach over the life of the derivative. We discontinue hedge accounting prospectively when we determine that the hedge is no longer effective or the derivative expires, is sold, or management discontinues the derivative’s hedge designation. Subsequent gains and losses on these derivatives are included in foreign exchange and other trading revenue. For discontinued fair value hedges, the accumulated gain or loss on the hedged item is amortized on a yield basis over the remaining life of the hedged item. For qualifying cash flow hedges, changes in the fair value of the derivative are recorded in OCI, until reclassified into earnings in the same period the hedged item impacts earnings. If the hedge relationship is terminated, then the change in value will be reclassified from OCI to earnings when the cash flows that were previously hedged affect earnings. If cash flow hedge accounting is discontinued as a result of a forecasted transaction no longer being probable to occur, then the amount reported in OCI is immediately reclassified to current earnings. Derivative amounts affecting earnings are recognized in the same income statement line as the hedged item affects earnings, principally interest income, interest expense and other revenue. Foreign currency transaction gains and losses related to qualifying hedges of net investments in a foreign operation are recorded with cumulative foreign currency translation adjustments within OCI net of their tax effect. The Company evaluates effectiveness of its foreign currency derivatives designated as hedges of its net investments utilizing the forward rate method.
Earnings per common share	Earnings per common share Earnings per common share is calculated using the two-class method under which earnings are allocated to common shareholders and holders of participating securities. Unvested stock-based compensation awards that contain non-forfeitable rights to dividends or dividend equivalents are considered participating securities under the two-class method. Basic earnings per share is calculated by dividing net income allocated to common shareholders of BNY Mellon by the average number of common shares outstanding and vested stock-based compensation awards where recipients have satisfied either the explicit vesting terms or retirement-eligibility requirements. Diluted earnings per common share is computed under the more dilutive of either the treasury stock method or the two-class method. We increase the average number of shares of common stock outstanding by the assumed number of shares of common stock that would be issued assuming the exercise of stock options and the issuance of shares related to stock-based compensation awards using the treasury stock method, if dilutive. Diluted earnings per share is calculated by dividing net income allocated to common shareholders of BNY Mellon by the adjusted average number of common shares outstanding.
Statement of cash flows	Statement of cash flows
Accounting changes and new accounting guidance	The following accounting changes and new accounting guidance were adopted in 2019. ASU 2016-02, Leases In February 2016, the Financial Accounting Standards Board (“FASB”) issued an ASU, Leases . The primary objective of this ASU is to increase transparency and comparability by recognizing lease assets and liabilities on the balance sheet and expand related disclosures. This ASU requires a “right-of-use” asset and a payment obligation liability on the balance sheet for most leases and subleases. Additionally, depending on the lease classification under the standard, it may result in different expense recognition patterns and classification than under existing accounting principles. For leases classified as finance leases, it will result in higher expense recognition in the earlier periods and lower expense in the later periods of the lease. The Company adopted this guidance on Jan. 1, 2019 using the alternative transition method on a prospective basis (and elected to utilize the basket of practical expedients available at implementation) and recognized right-of-use assets of $1.3 billion and lease liabilities of $1.5 billion on the consolidated balance sheet, both based on the present value of the expected remaining lease payments. See Note 6 for the disclosures required by this ASU. ASU 2018-02, Income Statement—Reporting Comprehensive Income: Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income In February 2018, the FASB issued an ASU, Income Statement—Reporting Comprehensive Income: Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income. This ASU permits a reclassification from accumulated other comprehensive income to retained earnings for the tax effects of items within accumulated other comprehensive income that do not reflect the lower statutory tax rate which was enacted by the 2017 U.S. tax legislation. BNY Mellon adopted this guidance in the first quarter of 2019, which resulted in a $90 million reclassification that decreased accumulated other comprehensive income and increased retained earnings.
Fair value measurement	Fair value measurement Fair value is defined as the price that would be received to sell an asset, or paid to transfer a liability, in an orderly transaction between market participants at the measurement date. A three-level hierarchy for fair value measurements is utilized based upon the transparency of inputs to the valuation of an asset or liability as of the measurement date. BNY Mellon’s own creditworthiness is considered when valuing liabilities. Fair value focuses on exit price in an orderly transaction (that is, not a forced liquidation or distressed sale) between market participants at the measurement date under current market conditions. If there has been a significant decrease in the volume and level of activity for the asset or liability, a change in valuation technique or the use of multiple valuation techniques may be appropriate. In such instances, determining the price at which willing market participants would transact at the measurement date under current market conditions depends on the facts and circumstances and requires the use of significant judgment. The objective is to determine from weighted indicators of fair value a reasonable point within the range that is most representative of fair value under current market conditions. Determination of fair value We have established processes for determining fair values. Fair value is based upon quoted market prices in active markets, where available. For financial instruments where quotes from recent exchange transactions are not available, we determine fair value based on discounted cash flow analysis, comparison to similar instruments and the use of financial models. Discounted cash flow analysis is dependent upon estimated future cash flows and the level of interest rates. Model-based pricing uses inputs of observable prices, where available, for interest rates, foreign exchange rates, option volatilities and other factors. Models are benchmarked and validated by an independent internal risk management function. Our valuation process takes into consideration factors such as counterparty credit quality, liquidity, concentration concerns and observability of model parameters. Valuation adjustments may be made to record financial instruments at fair value. Most derivative contracts are valued using models which are calibrated to observable market data and employ standard market pricing theory for their valuations. Valuation models incorporate counterparty credit risk by discounting each trade’s expected exposures to the counterparty using the counterparty’s credit spreads, as implied by the credit default swap market. We also adjust expected liabilities to the counterparty using BNY Mellon’s own credit spreads, as implied by the credit default swap market. Accordingly, the valuation of our derivative positions is sensitive to the current changes in our own credit spreads as well as those of our counterparties. In certain cases, recent prices may not be observable for instruments that trade in inactive or less active markets. Upon evaluating the uncertainty in valuing financial instruments subject to liquidity issues, we make an adjustment to their value. The determination of the liquidity adjustment includes the availability of external quotes, the time since the latest available quote and the price volatility of the instrument. Certain parameters in some financial models are not directly observable and, therefore, are based on management’s estimates and judgments. These financial instruments are normally traded less actively. We apply valuation adjustments to mitigate the possibility of error and revision in the model based estimate value. Examples include products where parameters such as correlation and recovery rates are unobservable. The methods described above for instruments that trade in inactive or less active markets may produce a current fair value calculation that may not be indicative of net realizable value or reflective of future fair values. We believe our methods of determining fair value are appropriate and consistent with other market participants. However, the use of different methodologies or different assumptions to value certain financial instruments could result in a different estimate of fair value. Valuation hierarchy A three-level valuation hierarchy is used for disclosure of fair value measurements based upon the transparency of inputs to the valuation of an asset or liability as of the measurement date. The three levels are described below. Level 1 : Inputs to the valuation methodology are quoted prices (unadjusted) for identical assets or liabilities in active markets. Level 1 assets and liabilities include certain debt and equity securities, derivative financial instruments actively traded on exchanges and highly liquid government bonds. Level 2 : Observable inputs other than Level 1 prices, for example, quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, and inputs that are observable or can be corroborated, either directly or indirectly, for substantially the full term of the financial instrument. Level 2 assets and liabilities include debt instruments that are traded less frequently than exchange-traded securities and derivative financial instruments whose model inputs are observable in the market or can be corroborated by market-observable data. Examples in this category are MBS, corporate debt securities and over-the-counter (“OTC”) derivative contracts. Level 3 : Inputs to the valuation methodology are unobservable and significant to the fair value measurement. A financial instrument’s categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement. Valuation methodology Following is a description of the valuation methodologies used for instruments measured at fair value, as well as the general classification of such instruments pursuant to the valuation hierarchy. Securities We determine fair value primarily based on pricing sources with reasonable levels of price transparency. Where quoted prices are available in an active market, we classify the securities within Level 1 of the valuation hierarchy. Securities include both long and short positions. Level 1 securities include U.S. Treasury and certain sovereign debt securities that are actively traded in highly liquid OTC markets, money market funds and exchange-traded equities. If quoted market prices are not available, fair values are primarily determined using pricing models using observable trade data, market data, quoted prices of securities with similar characteristics or discounted cash flows. Examples of such instruments, which would generally be classified within Level 2 of the valuation hierarchy, include MBS, state and political subdivisions, certain sovereign debt, corporate bonds and foreign covered bonds. Specifically, the pricing sources obtain recent transactions for similar types of securities (e.g., vintage, position in the securitization structure) and ascertain variables such as discount rate and speed of prepayment for the types of transaction and apply such variables to similar types of bonds. We view these as observable transactions in the current marketplace and classify such securities as Level 2. Pricing sources discontinue pricing any specific security whenever they determine there is insufficient observable data to provide a good faith opinion on price. In certain cases where there is limited activity or less transparency around inputs to the valuation, we classify those securities in Level 3 of the valuation hierarchy. As of Dec. 31, 2019 we have no instruments included in Level 3 of the valuation hierarchy. At Dec. 31, 2019 , approximately 99% of our securities were valued by pricing sources with reasonable levels of price transparency. The remaining securities were generally valued using observable inputs. Additional disclosures of securities are provided in Note 4. Derivative financial instruments We classify exchange-traded derivative financial instruments valued using quoted prices in Level 1 of the valuation hierarchy. Examples include exchange-traded equity and foreign exchange options. Since few other classes of derivative contracts are listed on an exchange, most of our derivative positions are valued using models that use as their basis readily observable market parameters, and we classify them in Level 2 of the valuation hierarchy. Such derivative financial instruments include swaps and options, foreign exchange spot and forward contracts and credit default swaps. Derivatives valued using models with significant unobservable market parameters in markets that lack two-way flow are classified in Level 3 of the valuation hierarchy. Examples may include long-dated swaps and options, where parameters may be unobservable for longer maturities; and certain highly structured products, where correlation risk is unobservable. As of Dec. 31, 2019 we have no Level 3 derivatives. Additional disclosures of derivative instruments are provided in Note 23. Seed capital In our Investment Management business, we make seed capital investments in certain funds we manage. Seed capital is generally included in other assets on the consolidated balance sheet. When applicable, we value seed capital based on the published NAV of the fund. For other types of investments in funds, we consider all of the rights and obligations inherent in our ownership interest, including the reported NAV as well as other factors that affect the fair value of our interest in the fund. Interests in securitizations For the interests in securitizations that are classified in trading assets – equity instruments and long-term debt, we use discounted cash flow models, which generally include assumptions of projected finance charges related to the securitized assets, estimated net credit losses, prepayment assumptions and estimates of payments to third-party investors. When available, we compare our fair value estimates and assumptions to market activity and to the actual results of the securitized portfolio. Other assets measured at NAV We hold private equity investments, specifically SBICs, which are compliant with the Volcker Rule. There are no readily available market quotations for these investment partnerships. The fair value of the SBICs is based on our ownership percentage of the fair value of the underlying investments as provided by the partnership managers. These investments are typically valued on a quarterly basis. Our SBIC private equity investments are valued at NAV as a practical expedient for fair value. The following tables present the financial instruments carried at fair value at Dec. 31, 2019 and Dec. 31, 2018 , by caption on the consolidated balance sheet and by the three-level valuation hierarchy. We have included credit ratings information in certain of the tables because the information indicates the degree of credit risk to which we are exposed, and significant changes in ratings classifications could result in increased risk for us.

Summary of significant accoun_3

Summary of significant accounting and reporting policies (Tables)	12 Months Ended
	Dec. 31, 2019
Accounting Policies [Abstract]
Equity Method Investments	Below are our most significant equity method investments, other than the investments in renewable energy. Equity method investments at Dec. 31, 2019 (dollars in millions) Percentage ownership Book value CIBC Mellon Global Securities Services Company (“CIBC Mellon”) 50.0 % $ 626 Siguler Guff 20.0 % $ 233

Securities (Tables)

Securities (Tables)	12 Months Ended
Securities (Tables)	Dec. 31, 2019
Securities [Abstract]
Amortized Cost and Fair Values of Securities	The following tables present the amortized cost, the gross unrealized gains and losses and the fair value of securities at Dec. 31, 2019 , Dec. 31, 2018 and Dec. 31, 2017, respectively. Securities at Dec. 31, 2019 Gross unrealized Amortized cost Fair value (in millions) Gains Losses Available-for-sale: Agency RMBS $ 27,022 $ 164 $ 143 $ 27,043 U.S. Treasury 14,979 472 20 15,431 Sovereign debt/sovereign guaranteed 12,548 109 11 12,646 Agency commercial mortgage-backed securities (“MBS”) 9,231 203 17 9,417 Foreign covered bonds 4,189 15 7 4,197 CLOs 4,078 1 16 4,063 Supranational 3,697 18 6 3,709 Foreign government agencies 2,638 7 2 2,643 Non-agency commercial MBS 2,134 46 2 2,178 Other asset-backed securities (“ABS”) 2,141 7 5 2,143 U.S. government agencies 1,890 61 2 1,949 Non-agency RMBS (a) 1,038 202 7 1,233 State and political subdivisions 1,017 27 — 1,044 Corporate bonds 832 21 — 853 Other debt securities 1 — — 1 Total securities available-for-sale (b) $ 87,435 $ 1,353 $ 238 $ 88,550 Held-to-maturity: Agency RMBS $ 27,357 $ 292 $ 46 $ 27,603 U.S. Treasury 3,818 28 3 3,843 Agency commercial MBS 1,326 21 3 1,344 U.S. government agencies 1,023 1 2 1,022 Sovereign debt/sovereign guaranteed 756 31 — 787 Non-agency RMBS 80 4 1 83 Foreign covered bonds 79 — — 79 Supranational 27 — — 27 State and political subdivisions 17 — — 17 Total securities held-to-maturity $ 34,483 $ 377 $ 55 $ 34,805 Total securities $ 121,918 $ 1,730 $ 293 $ 123,355 (a) Includes $640 million that was included in the former Grantor Trust. (b) Includes gross unrealized gains of $32 million and gross unrealized losses of $65 million recorded in accumulated other comprehensive income related to securities that were transferred from available-for-sale to held-to-maturity. The unrealized gains and losses are primarily related to Agency RMBS and will be amortized into net interest revenue over the contractual lives of the securities. Securities at Dec. 31, 2018 Gross unrealized Amortized cost Fair value (in millions) Gains Losses Available-for-sale: Agency RMBS $ 25,594 $ 83 $ 369 $ 25,308 U.S. Treasury 20,190 96 210 20,076 Sovereign debt/sovereign guaranteed 10,663 108 21 10,750 Agency commercial MBS 9,836 16 161 9,691 CLOs 3,410 — 46 3,364 Supranational 2,985 7 8 2,984 Foreign covered bonds 2,890 7 19 2,878 State and political subdivisions 2,251 18 22 2,247 Other ABS 1,776 1 4 1,773 U.S. government agencies 1,676 5 24 1,657 Non-agency commercial MBS 1,491 1 28 1,464 Non-agency RMBS (a) 1,095 241 11 1,325 Foreign government agencies 1,164 1 4 1,161 Corporate bonds 1,074 6 26 1,054 Other debt securities 72 5 — 77 Total securities available-for-sale (b) $ 86,167 $ 595 $ 953 $ 85,809 Held-to-maturity: Agency RMBS $ 25,507 $ 32 $ 632 $ 24,907 U.S. Treasury 4,727 3 77 4,653 U.S. government agencies 1,497 — 10 1,487 Agency commercial MBS 1,195 — 26 1,169 Sovereign debt/sovereign guaranteed 833 26 — 859 Non-agency RMBS 100 4 2 102 Foreign covered bonds 80 1 — 81 Supranational 26 1 — 27 State and political subdivisions 17 — — 17 Total securities held-to-maturity $ 33,982 $ 67 $ 747 $ 33,302 Total securities $ 120,149 $ 662 $ 1,700 $ 119,111 (a) Includes $832 million that was included in the former Grantor Trust. (b) Includes gross unrealized gains of $39 million and gross unrealized losses of $87 million recorded in accumulated other comprehensive income related to securities that were transferred from available-for-sale to held-to-maturity. The unrealized gains and losses are primarily related to Agency RMBS and will be amortized into net interest revenue over the contractual lives of the securities.
Schedule of Realized Gains, Losses, and Impairments	The following table presents the realized gains, losses and impairments, on a gross basis. Net securities (losses) gains (in millions) 2019 2018 2017 Realized gross gains $ 23 $ 8 $ 47 Realized gross losses (39 ) (55 ) (40 ) Recognized gross impairments (2 ) (1 ) (4 ) Total net securities (losses) gains $ (18 ) $ (48 ) $ 3
Pre-Tax Securities Gains (Losses) by Type	The following table presents pre-tax net securities (losses) gains by type. Net securities (losses) gains (in millions) 2019 2018 2017 U.S. Treasury $ (13 ) $ (4 ) $ (16 ) Agency RMBS 1 (42 ) (12 ) Other (6 ) (2 ) 31 Total net securities (losses) gains $ (18 ) $ (48 ) $ 3
Aggregate Fair Value of Investments with Continuous Unrealized Loss Position	The following tables show the aggregate fair value of securities with a continuous unrealized loss position for less than 12 months and those that have been in a continuous unrealized loss position for 12 months or more. Temporarily impaired securities at Dec. 31, 2019 Less than 12 months 12 months or more Total Fair value Unrealized losses Fair value Unrealized losses Fair value Unrealized losses (in millions) Available-for-sale: Agency RMBS $ 8,373 $ 33 $ 5,912 $ 110 $ 14,285 $ 143 U.S. Treasury 1,976 16 766 4 2,742 20 Sovereign debt/sovereign guaranteed 4,045 10 225 1 4,270 11 Agency commercial MBS 1,960 12 775 5 2,735 17 Foreign covered bonds 1,009 4 690 3 1,699 7 CLOs 1,066 2 1,499 14 2,565 16 Supranational 1,336 6 360 — 1,696 6 Foreign government agencies 1,706 2 47 — 1,753 2 Non-agency commercial MBS 525 2 45 — 570 2 Other ABS 456 3 305 2 761 5 U.S. government agencies 377 2 — — 377 2 Non-agency RMBS (a) 101 — 113 7 214 7 State and political subdivisions — — 16 — 16 — Corporate bonds 82 — 21 — 103 — Total securities available-for-sale (b) $ 23,012 $ 92 $ 10,774 $ 146 $ 33,786 $ 238 Held-to-maturity: Agency RMBS $ 4,714 $ 17 $ 3,729 $ 29 $ 8,443 $ 46 U.S. Treasury 406 3 821 — 1,227 3 Agency commercial MBS 375 3 — — 375 3 U.S. government agencies 506 2 45 — 551 2 Non-agency RMBS 6 — 40 1 46 1 Total securities held-to-maturity $ 6,007 $ 25 $ 4,635 $ 30 $ 10,642 $ 55 Total temporarily impaired securities $ 29,019 $ 117 $ 15,409 $ 176 $ 44,428 $ 293 (a) Includes $2 million of securities with an unrealized loss of less than $1 million for less than 12 months and $2 million of securities with an unrealized loss of less than $1 million for 12 months or more that were included in the former Grantor Trust. (b) Includes gross unrealized losses of $65 million for 12 months or more recorded in accumulated other comprehensive income related to securities that were transferred from available-for-sale to held-to-maturity. The unrealized losses are primarily related to Agency RMBS and will be amortized into net interest revenue over the contractual lives of the securities. There were no gross unrealized losses for less than 12 months. Temporarily impaired securities at Dec. 31, 2018 Less than 12 months 12 months or more Total (in millions) Fair value Unrealized losses Fair value Unrealized losses Fair value Unrealized losses Available-for-sale: Agency RMBS $ 6,678 $ 30 $ 9,250 $ 339 $ 15,928 $ 369 U.S. Treasury 6,126 23 6,880 187 13,006 210 Sovereign debt/sovereign guaranteed 2,185 8 988 13 3,173 21 Agency commercial MBS 4,505 50 3,082 111 7,587 161 CLOs 3,280 46 2 — 3,282 46 Supranational 974 2 481 6 1,455 8 Foreign covered bonds 1,058 7 736 12 1,794 19 State and political subdivisions 316 1 668 21 984 22 Other ABS 1,289 4 23 — 1,312 4 U.S. government agencies 513 4 673 20 1,186 24 Non-agency commercial MBS 1,015 14 362 14 1,377 28 Non-agency RMBS (a) 94 1 157 10 251 11 Foreign government agencies 397 1 256 3 653 4 Corporate bonds 685 24 50 2 735 26 Total securities available-for-sale (b) $ 29,115 $ 215 $ 23,608 $ 738 $ 52,723 $ 953 Held-to-maturity: Agency RMBS $ 4,602 $ 56 $ 17,107 $ 576 $ 21,709 $ 632 U.S. Treasury 157 2 4,343 75 4,500 77 U.S. government agencies — — 1,111 10 1,111 10 Agency commercial MBS 477 7 654 19 1,131 26 Non-agency RMBS 22 1 31 1 53 2 Total securities held-to-maturity $ 5,258 $ 66 $ 23,246 $ 681 $ 28,504 $ 747 Total temporarily impaired securities $ 34,373 $ 281 $ 46,854 $ 1,419 $ 81,227 $ 1,700 (a) Includes $22 million of securities with an unrealized loss of less than $1 million for less than 12 months and $3 million of securities with an unrealized loss of less than $1 million for 12 months or more that were included in the former Grantor Trust. (b) Includes gross unrealized losses of $87 million for 12 months or more recorded in accumulated other comprehensive income related to securities that were transferred from available-for-sale to held-to-maturity. The unrealized losses are primarily related to Agency RMBS and will be amortized into net interest revenue over the contractual lives of the securities. There were no gross unrealized losses for less than 12 months.
Maturity Distribution by Carrying Amount and Yield (on Tax Equivalent Basis) of Investment Securities Portfolio	The following table shows the maturity distribution by carrying amount and yield (on a tax equivalent basis) of our securities portfolio. Maturity distribution and yields on securities at Dec. 31, 2019 U.S. Treasury U.S. government agencies State and political subdivisions Other bonds, notes and debentures Mortgage/ asset-backed (dollars in millions) Amount Yield (a) Amount Yield (a) Amount Yield (a) Amount Yield (a) Amount Yield (a) Total Securities available-for-sale: One year or less $ 2,104 2.51 % $ 25 2.73 % $ 162 2.90 % $ 8,241 1.19 % $ — — % $ 10,532 Over 1 through 5 years 6,876 1.70 411 2.07 774 3.26 13,909 0.99 — — 21,970 Over 5 through 10 years 3,693 2.21 1,513 2.70 94 2.57 1,705 0.87 — — 7,005 Over 10 years 2,758 3.11 — — 14 2.50 194 1.67 — — 2,966 Mortgage-backed securities — — — — — — — — 39,871 2.87 39,871 Asset-backed securities — — — — — — — — 6,206 2.90 6,206 Total $ 15,431 2.18 % $ 1,949 2.56 % $ 1,044 3.13 % $ 24,049 1.06 % $ 46,077 2.87 % $ 88,550 Securities held-to-maturity: One year or less $ 881 1.44 % $ 135 1.69 % $ — — % $ 138 0.78 % $ — — % $ 1,154 Over 1 through 5 years 2,937 1.98 688 2.04 3 5.68 610 0.77 — — 4,238 Over 5 through 10 years — — 200 2.58 — — 114 0.22 — — 314 Over 10 years — — — — 14 4.76 — — — — 14 Mortgage-backed securities — — — — — — — — 28,763 2.94 28,763 Total $ 3,818 1.86 % $ 1,023 2.10 % $ 17 4.94 % $ 862 0.70 % $ 28,763 2.94 % $ 34,483 (a) Yields are based upon the amortized cost of securities.
Debt Securities Credit Losses Roll Forward Recorded in Earnings	The following table reflects securities credit losses recorded in earnings. The beginning balance represents the credit loss component for which OTTI occurred on debt securities in prior periods. The additions represent the first time a debt security was credit impaired or when subsequent credit impairments have occurred. The deductions represent credit losses on securities that have been sold, are required to be sold, or for which it is our intention to sell. Debt securities credit loss roll forward (in millions) 2019 2018 Beginning balance as of Dec. 31 $ 78 $ 84 Add: Initial OTTI credit losses — — Subsequent OTTI credit losses 1 1 Less: Realized losses for securities sold 7 7 Ending balance as of Dec. 31 $ 72 $ 78

Loans and asset quality (Tables

Loans and asset quality (Tables)	12 Months Ended
Loans and asset quality (Tables)	Dec. 31, 2019
Receivables [Abstract]
Schedule of Loan Portfolio and Industry Concentrations of Credit Risk	The table below provides the details of our loan portfolio and industry concentrations of credit risk at Dec. 31, 2019 and Dec. 31, 2018 . Loans Dec. 31, (in millions) 2019 2018 Domestic: Commercial $ 1,442 $ 1,949 Commercial real estate 5,575 4,787 Financial institutions 4,852 5,091 Lease financings 537 706 Wealth management loans and mortgages 16,050 15,843 Other residential mortgages 494 594 Overdrafts 524 1,550 Other 1,167 1,181 Margin loans 11,907 13,343 Total domestic 42,548 45,044 Foreign: Commercial 347 183 Commercial real estate 7 — Financial institutions 7,626 6,492 Lease financings 576 551 Wealth management loans and mortgages 140 122 Other (primarily overdrafts) 2,230 4,031 Margin loans 1,479 141 Total foreign 12,405 11,520 Total loans (a) $ 54,953 $ 56,564 (a) Net of unearned income of $313 million at Dec. 31, 2019 and $358 million at Dec. 31, 2018 primarily related to domestic and foreign lease financings.
Summary of Transactions in the Allowance for Credit Losses	Activity in the allowance for credit losses is presented below. Allowance for credit losses activity for the year ended Dec. 31, 2019 Wealth management loans and mortgages Other All Foreign Total (in millions) Commercial Commercial Financial Lease Beginning balance $ 81 $ 75 $ 22 $ 5 $ 21 $ 16 $ — $ 32 $ 252 Charge-offs (12 ) — — — (1 ) (1 ) — — (14 ) Recoveries — — — — — 3 — — 3 Net (charge-offs) recoveries (12 ) — — — (1 ) 2 — — (11 ) Provision (9 ) 1 (2 ) (2 ) — (5 ) — (8 ) (25 ) Ending balance $ 60 $ 76 $ 20 $ 3 $ 20 $ 13 $ — $ 24 $ 216 Allowance for: Loan losses $ 11 $ 57 $ 5 $ 3 $ 18 $ 13 $ — $ 15 $ 122 Lending-related commitments 49 19 15 — 2 — — 9 94 Individually evaluated for impairment: Loan balance $ — $ — $ — $ — $ 15 $ — $ — $ — $ 15 Allowance for loan losses — — — — — — — — — Collectively evaluated for impairment: Loan balance $ 1,442 $ 5,575 $ 4,852 $ 537 $ 16,035 $ 494 $ 13,598 (a) $ 12,405 $ 54,938 Allowance for loan losses 11 57 5 3 18 13 — 15 122 (a) Includes $524 million of domestic overdrafts, $11,907 million of margin loans and $1,167 million of other loans at Dec. 31, 2019 . Allowance for credit losses activity for the year ended Dec. 31, 2018 Wealth management loans and mortgages Other All Foreign Total (in millions) Commercial Commercial Financial Lease Beginning balance $ 77 $ 76 $ 23 $ 8 $ 22 $ 20 $ — $ 35 $ 261 Charge-offs — — — — — (1 ) — — (1 ) Recoveries — — — — — 2 — 1 3 Net recoveries — — — — — 1 — 1 2 Provision 4 (1 ) (1 ) (3 ) (1 ) (5 ) — (4 ) (11 ) Ending balance $ 81 $ 75 $ 22 $ 5 $ 21 $ 16 $ — $ 32 $ 252 Allowance for: Loan losses $ 24 $ 56 $ 7 $ 5 $ 18 $ 16 $ — $ 20 $ 146 Lending-related commitments 57 19 15 — 3 — — 12 106 Individually evaluated for impairment: Loan balance $ — $ — $ — $ — $ 4 $ — $ — $ — $ 4 Allowance for loan losses — — — — — — — — — Collectively evaluated for impairment: Loan balance $ 1,949 $ 4,787 $ 5,091 $ 706 $ 15,839 $ 594 $ 16,074 (a) $ 11,520 $ 56,560 Allowance for loan losses 24 56 7 5 18 16 — 20 146 (a) Includes $1,550 million of domestic overdrafts, $13,343 million of margin loans and $1,181 million of other loans at Dec. 31, 2018 . Allowance for credit losses activity f or the year ended Dec. 31, 2017 Wealth management loans and mortgages Other All Foreign Total (in millions) Commercial Commercial Financial Lease Beginning balance $ 82 $ 73 $ 26 $ 13 $ 23 $ 28 $ — $ 36 $ 281 Charge-offs — — — — — (1 ) — — (1 ) Recoveries — — — — — 5 — — 5 Net recoveries — — — — — 4 — — 4 Provision (5 ) 3 (3 ) (5 ) (1 ) (12 ) — (1 ) (24 ) Ending balance $ 77 $ 76 $ 23 $ 8 $ 22 $ 20 $ — $ 35 $ 261 Allowance for: Loans losses $ 24 $ 58 $ 7 $ 8 $ 18 $ 20 $ — $ 24 $ 159 Unfunded commitments 53 18 16 — 4 — — 11 102 Individually evaluated for impairment: Loan balance $ — $ — $ 1 $ — $ 5 $ — $ — $ — $ 6 Allowance for loan losses — — — — 1 — — — 1 Collectively evaluated for impairment: Loan balance $ 2,744 $ 4,900 $ 5,567 $ 772 $ 16,415 $ 708 $ 17,783 (a) $ 12,645 $ 61,534 Allowance for loan losses 24 58 7 8 17 20 — 24 158 (a) Includes $963 million of domestic overdrafts, $15,689 million of margin loans and $1,131 million of other loans at Dec. 31, 2017 .
Distribution of Nonperforming Assets	The table below presents our nonperforming assets. Nonperforming assets (in millions) Dec. 31, 2019 2018 Nonperforming loans: Other residential mortgages $ 62 $ 67 Wealth management loans and mortgages 24 9 Total nonperforming loans 86 76 Other assets owned 3 3 Total nonperforming assets $ 89 $ 79
Lost Interest Income	The table below presents the amount of lost interest income. Lost interest (in millions) 2019 2018 2017 Amount by which interest income recognized on nonperforming loans exceeded reversals Total $ — $ — $ — Foreign — — — Amount by which interest income would have increased if nonperforming loans at year-end had been performing for the entire year Total $ 6 $ 5 $ 5 Foreign — — —
Information about Impaired Loans	The tables below present information about our impaired loans. We use the discounted cash flow method as the primary method for valuing impaired loans. Impaired loans 2019 2018 2017 (in millions) Average recorded investment Interest revenue recognized Average recorded investment Interest revenue recognized Average recorded investment Interest revenue recognized Impaired loans with an allowance: Commercial $ 39 $ — $ — $ — $ — $ — Financial institutions — — — — 1 — Wealth management loans and mortgages — — 1 — 2 — Lease financings — — — — 1 — Total impaired loans with an allowance 39 — 1 — 4 — Impaired loans without an allowance: (a) Wealth management loans and mortgages 11 — 4 — 3 — Total impaired loans $ 50 $ — $ 5 $ — $ 7 $ — (a) When the discounted cash flows, collateral value or market price equals or exceeds the carrying value of the loan, then the loan does not require an allowance under the accounting standard related to impaired loans. Impaired loans Dec. 31, 2019 Dec. 31, 2018 (in millions) Recorded investment Unpaid principal balance Related allowance (a) Recorded investment Unpaid principal balance Related allowance (a) Impaired loans without an allowance: (b) Wealth management loans and mortgages $ 15 $ 15 N/A $ 4 $ 4 N/A Total impaired loans (c) $ 15 $ 15 $ — $ 4 $ 4 $ — (a) The allowance for impaired loans is included in the allowance for loan losses. (b) When the discounted cash flows, collateral value or market price equals or exceeds the carrying value of the loan, then the loan does not require an allowance under the accounting standard related to impaired loans. (c) Excludes an aggregate of less than $1 million of impaired loans in amounts individually less than $1 million at both Dec. 31, 2019 and Dec. 31, 2018 , respectively. The allowance for loan losses associated with these loans totaled less than $1 million at both Dec. 31, 2019 and Dec. 31, 2018 , respectively.
Information about Past Due Loans	The table below presents our past due loans. Past due loans and still accruing interest Dec. 31, 2019 Dec. 31, 2018 Days past due Total past due Days past due Total past due (in millions) 30-59 60-89 ≥90 30-59 60-89 ≥90 Financial institutions $ 1 $ 30 $ — $ 31 $ 3 $ 3 $ — $ 6 Wealth management loans and mortgages 22 5 — 27 22 1 5 28 Commercial real estate 6 12 — 18 1 — — 1 Other residential mortgages 8 3 — 11 12 6 7 25 Total past due loans $ 37 $ 50 $ — $ 87 $ 38 $ 10 $ 12 $ 60
Credit Quality Indicators - Commercial Portfolio - Credit Risk Profile by Creditworthiness Category	The following tables present information about credit quality indicators. Commercial loan portfolio Commercial loan portfolio – Credit risk profile by creditworthiness category Commercial Commercial real estate Financial institutions Dec. 31, Dec. 31, Dec. 31, (in millions) 2019 2018 2019 2018 2019 2018 Investment grade $ 1,744 $ 2,036 $ 5,045 $ 4,184 $ 10,265 $ 9,586 Non-investment grade 45 96 537 603 2,213 1,997 Total $ 1,789 $ 2,132 $ 5,582 $ 4,787 $ 12,478 $ 11,583
Credit Quality Indicators - Wealth Management Loans and Mortgages - Credit Risk Profile by Internally Assigned Grade	Wealth management loans and mortgages Wealth management loans and mortgages – Credit risk profile by internally assigned grade Dec. 31, (in millions) 2019 2018 Wealth management loans: Investment grade $ 7,254 $ 6,901 Non-investment grade 140 106 Wealth management mortgages 8,796 8,958 Total $ 16,190 $ 15,965

Leasing (Tables)

Leasing (Tables)	12 Months Ended
Leasing (Tables)	Dec. 31, 2019
Leases [Abstract]
Leases, Balance Sheet Information	The following table presents the consolidated balance sheet information related to operating and finance leases. Balance sheet information Dec. 31, 2019 (dollar in millions) Operating Finance Total Right-of-use assets (a) $ 1,530 $ 12 $ 1,542 Lease liability (b) $ 1,772 $ 2 $ 1,774 Weighted average: Remaining lease term 11.3 years 2.6 years Discount rate (annualized) 2.76 % 2.88 % (a) Included in premises and equipment on the consolidated balance sheet. (b) Operating lease liabilities are included in other liabilities and finance lease liabilities are included in other borrowed funds, both on the consolidated balance sheet.
Lease, Cost	The following table presents the components of lease expense. Lease expense Year ended (in millions) Dec. 31, 2019 Operating lease expense $ 266 Variable lease expense 39 Sublease income (33 ) Finance lease expense: Amortization of right-of-use assets 7 Interest on lease liabilities — Total finance lease expense $ 7 Total lease expense $ 279 The following table presents cash flow information related to leases. Cash flow information Year ended (in millions) Dec. 31, 2019 Cash paid for amounts included in measurement of liabilities: Operating cash flows from finance leases $ — Operating cash flows from operating leases $ 285 Financing cash flows from finance leases $ 20
Lessee, Operating Lease, Liability, Maturity	The following table presents the maturities of lease liabilities. Maturities of lease liabilities Operating Finance (in millions) For the year ended Dec. 31, 2020 $ 284 $ 2 2021 224 — 2022 199 — 2023 166 — 2024 136 — 2025 and thereafter 1,057 — Total lease payments 2,066 2 Less: Imputed interest (294 ) — Total $ 1,772 $ 2
Finance Lease, Liability, Maturity	The following table presents the maturities of lease liabilities. Maturities of lease liabilities Operating Finance (in millions) For the year ended Dec. 31, 2020 $ 284 $ 2 2021 224 — 2022 199 — 2023 166 — 2024 136 — 2025 and thereafter 1,057 — Total lease payments 2,066 2 Less: Imputed interest (294 ) — Total $ 1,772 $ 2
Schedule of Future Minimum Rental Payments for Operating Leases	The following table presents the maturity of lease liabilities on operating leases prior to adopting ASU 2016-02, Leases . Maturities of lease liabilities Operating (in millions) For the year ended Dec. 31, 2020 $ 244 2021 211 2022 172 2023 136 2024 and thereafter 432 Total $ 1,195

Goodwill and intangible assets

Goodwill and intangible assets (Tables)	12 Months Ended
Goodwill and intangible assets (Tables)	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Breakdown of Goodwill by Business	The table below provides a breakdown of goodwill by business. Goodwill by business (in millions) Investment Investment Other Consolidated Balance at Dec. 31, 2017 $ 8,389 $ 9,128 $ 47 $ 17,564 Dispositions — (65 ) — (65 ) Foreign currency translation (56 ) (93 ) — (149 ) Balance at Dec. 31, 2018 $ 8,333 $ 8,970 $ 47 $ 17,350 Foreign currency translation (1 ) 37 — 36 Balance at Dec. 31, 2019 $ 8,332 $ 9,007 $ 47 $ 17,386
Breakdown of Intangible Assets by Business	The table below provides a breakdown of intangible assets by business. Intangible assets – net carrying amount by business (in millions) Investment Investment Other Consolidated Balance at Dec. 31, 2017 $ 888 $ 1,674 $ 849 $ 3,411 Amortization (129 ) (51 ) — (180 ) Foreign currency translation (1 ) (10 ) — (11 ) Balance at Dec. 31, 2018 $ 758 $ 1,613 $ 849 $ 3,220 Amortization (80 ) (37 ) — (117 ) Foreign currency translation — 4 — 4 Balance at Dec. 31, 2019 $ 678 $ 1,580 $ 849 $ 3,107
Breakdown of Intangible Assets by Type	The table below provides a breakdown of intangible assets by type. Intangible assets Dec. 31, 2019 Dec. 31, 2018 (in millions) Gross carrying amount Accumulated amortization Net carrying amount Remaining weighted- average amortization period Gross Accumulated Net carrying amount Subject to amortization: (a) Customer contracts—Investment Services $ 1,520 $ (1,214 ) $ 306 10 years $ 1,572 $ (1,186 ) $ 386 Customer relationships—Investment Management 712 (544 ) 168 11 years 899 (699 ) 200 Other 64 (16 ) 48 14 years 26 (12 ) 14 Total subject to amortization 2,296 (1,774 ) 522 10 years 2,497 (1,897 ) 600 Not subject to amortization: (b) Tradenames 1,293 N/A 1,293 N/A 1,332 N/A 1,332 Customer relationships 1,292 N/A 1,292 N/A 1,288 N/A 1,288 Total not subject to amortization 2,585 N/A 2,585 N/A 2,620 N/A 2,620 Total intangible assets $ 4,881 $ (1,774 ) $ 3,107 N/A $ 5,117 $ (1,897 ) $ 3,220 (a) Excludes fully amortized intangible assets. (b) Intangible assets not subject to amortization have an indefinite life.
Estimated Annual Amortization Expense	Estimated annual amortization expense for current intangibles for the next five years is as follows: For the year ended Estimated amortization expense (in millions) 2020 $ 104 2021 81 2022 63 2023 52 2024 45

Other assets (Tables)

Other assets (Tables)	12 Months Ended
Other assets (Tables)	Dec. 31, 2019
Other Assets [Abstract]
Summary of Other Assets Presented on the Consolidated Balance Sheet	The following table provides the components of other assets presented on the consolidated balance sheet. Other assets Dec. 31, (in millions) 2019 2018 Corporate/bank-owned life insurance $ 5,219 $ 4,937 Accounts receivable 3,802 3,692 Fails to deliver 1,671 2,274 Software 1,590 1,652 Prepaid pension assets 1,464 1,357 Renewable energy investments 1,144 1,264 Equity in a joint venture and other investments 1,102 1,064 Qualified affordable housing project investments 1,024 999 Prepaid expense 491 385 Federal Reserve Bank stock 466 484 Income taxes receivable 388 1,125 Seed capital 184 224 Fair value of hedging derivatives 21 289 Other (a) 1,655 1,552 Total other assets $ 20,221 $ 21,298 (a) At Dec. 31, 2019 and Dec. 31, 2018 , other assets include $22 million and $111 million , respectively, of Federal Home Loan Bank stock, at cost.
Equity Securities without Readily Determinable Fair Value	The following table presents the adjustments on the non-readily marketable equity securities. Non-readily marketable equity securities Life-to-date (in millions) 2019 2018 Upward adjustments $ 4 $ 28 $ 32 Downward adjustments (3 ) (1 ) (4 ) Net adjustments $ 1 $ 27 $ 28
Summary of Investments Valued Using NAV	The table below presents information on our investments valued using NAV. Investments valued using NAV Dec. 31, 2019 Dec. 31, 2018 (in millions) Fair value Unfunded commitments Fair value Unfunded commitments Seed capital (a) $ 59 $ — $ 54 $ — Private equity investments (SBICs) (b) 89 55 74 41 Other (c) 33 — 87 — Total $ 181 $ 55 $ 215 $ 41 (a) Primarily includes leveraged loans and structured credit funds which are generally not redeemable. Distributions from such investments will be received as the underlying investments in the funds, which have a life of six years, are liquidated. (b) Private equity investments include Volcker Rule-compliant investments in SBICs that invest in various sectors of the economy. Private equity investments do not have redemption rights. Distributions from such investments will be received as the underlying investments in the private equity investments, which have a life of 10 years, are liquidated. (c) Primarily relates to investments in funds that relate to deferred compensation arrangements with employees. Investments in funds can be redeemed on a quarterly basis with redemption notice periods up to 95 days . At Dec. 31, 2018, also included investments which could be redeemed daily or monthly with a redemption notice period of one day .

Contract revenue (Tables)

Contract revenue (Tables)	12 Months Ended
Contract revenue (Tables)	Dec. 31, 2019
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	The following table presents fee revenue related to contracts with customers, disaggregated by type of fee revenue, for each business segment. Disaggregation of contract revenue by business segment (a) Year ended Dec. 31, 2019 2018 (in millions) IS IM Other Total IS IM Other Total Fee revenue - contract revenue: Investment services fees: Asset servicing fees $ 4,365 $ 85 $ 1 $ 4,451 $ 4,395 $ 88 $ 1 $ 4,484 Clearing services fees (b) 1,649 — (1 ) 1,648 1,615 — — 1,615 Issuer services fees 1,130 — — 1,130 1,099 — — 1,099 Treasury services fees 560 1 — 561 553 1 — 554 Total investment services fees (b) 7,704 86 — 7,790 7,662 89 1 7,752 Investment management and performance fees (b) 17 3,373 — 3,390 16 3,619 — 3,635 Financing-related fees 59 — 1 60 61 1 (2 ) 60 Distribution and servicing (49 ) 178 — 129 (51 ) 191 — 140 Investment and other income 282 (197 ) — 85 279 (202 ) 2 79 Total fee revenue - contract revenue 8,013 3,440 1 11,454 7,967 3,698 1 11,666 Fee and other revenue - not in scope of ASC 606 (c)(d) 881 26 887 1,794 959 83 84 1,126 Total fee and other revenue $ 8,894 $ 3,466 $ 888 $ 13,248 $ 8,926 $ 3,781 $ 85 $ 12,792 (a) Business segment data has been determined on an internal management basis of accounting, rather than the generally accepted accounting principles used for consolidated financial reporting. (b) In 2019, we reclassified certain platform-related fees to clearing services fees from investment management and performance fees. Prior periods have been reclassified. (c) Primarily includes investment and other income, foreign exchange and other trading revenue, financing-related fees, asset servicing fees and net securities gains (losses), all of which are accounted for using other accounting guidance. (d) The Investment Management business includes income from consolidated investment management funds, net of noncontrolling interests, of $30 million in 2019 and a loss of $1 million in 2018 . IS - Investment Services segment. IM - Investment Management segment.

Net interest revenue (Tables)

Net interest revenue (Tables)	12 Months Ended
Net interest revenue (Tables)	Dec. 31, 2019
Interest Revenue (Expense), Net [Abstract]
Components of Net Interest Revenue	The following table provides the components of net interest revenue presented on the consolidated income statement. Net interest revenue Year ended Dec. 31, (in millions) 2019 2018 2017 Interest revenue Deposits with the Federal Reserve and other central banks $ 448 $ 531 $ 319 Deposits with banks 265 219 120 Federal funds sold and securities purchased under resale agreements 2,154 1,116 423 Margin loans 454 510 343 Non-margin loans 1,335 1,356 1,077 Securities: Taxable 2,701 2,520 1,977 Exempt from federal income taxes 36 54 64 Total securities 2,737 2,574 2,041 Trading securities 155 126 59 Total interest revenue 7,548 6,432 4,382 Interest expense Deposits in domestic offices 958 537 107 Deposits in foreign offices 636 340 55 Federal funds purchased and securities sold under repurchase agreements 1,437 758 225 Trading liabilities 35 29 7 Other borrowed funds 59 58 26 Commercial paper 55 51 29 Customer payables 238 191 64 Long-term debt 942 857 561 Total interest expense 4,360 2,821 1,074 Net interest revenue 3,188 3,611 3,308 Provision for credit losses (25 ) (11 ) (24 ) Net interest revenue after provision for credit losses $ 3,213 $ 3,622 $ 3,332

Income taxes (Tables)

Income taxes (Tables)	12 Months Ended
Income taxes (Tables)	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Components of the Income Tax Provision	The components of the income tax provision are as follows: Provision for income taxes Year ended Dec. 31, (in millions) 2019 2018 2017 Current tax expense (benefit): Federal $ 592 $ 902 $ (99 ) Foreign 484 442 388 State and local 113 119 74 Total current tax expense 1,189 1,463 363 Deferred tax (benefit) expense: Federal (3 ) (556 ) 36 Foreign (13 ) 9 14 State and local (53 ) 22 83 Total deferred tax (benefit) expense (69 ) (525 ) 133 Provision for income taxes $ 1,120 $ 938 $ 496
Components of Income Before Taxes	The components of income before taxes are as follows: Income before taxes Year ended Dec. 31, (in millions) 2019 2018 2017 Domestic $ 3,516 $ 3,008 $ 2,699 Foreign 2,071 2,184 1,911 Income before taxes $ 5,587 $ 5,192 $ 4,610
Components of Net Deferred Tax Liability	The components of our net deferred tax liability are as follows: Net deferred tax liability Dec. 31, (in millions) 2019 2018 Depreciation and amortization $ 2,136 $ 2,060 Pension obligation 282 300 Renewable energy investment 268 295 Equity investments 63 65 Lease financings 42 130 Securities valuation 1 (15 ) Credit losses on loans (46 ) (54 ) Reserves not deducted for tax (120 ) (143 ) Employee benefits (257 ) (266 ) Other assets (43 ) (65 ) Other liabilities 229 189 U.S. foreign tax credits (39 ) — Valuation allowance 39 — Net deferred tax liability $ 2,555 $ 2,496
Tax Rate Reconciliations	The statutory federal income tax rate is reconciled to our effective income tax rate below: Effective tax rate Year ended Dec. 31, 2019 2018 2017 Federal rate 21.0 % 21.0 % 35.0 % State and local income taxes, net of federal income tax benefit 0.9 2.1 1.8 Foreign operations 2.4 0.5 (4.2 ) Tax credits (3.2 ) (3.3 ) (3.7 ) Tax-exempt income (0.7 ) (0.8 ) (1.9 ) Leverage lease adjustment — — (1.4 ) Federal Deposit Insurance Corporation (“FDIC”) assessment 0.2 0.5 — Stock compensation (0.4 ) (0.6 ) (1.1 ) U.S. tax legislation — (1.7 ) (13.3 ) Other – net (0.2 ) 0.4 (0.4 ) Effective tax rate 20.0 % 18.1 % 10.8 %
Unrecognized Tax Benefits	Unrecognized tax positions (in millions) 2019 2018 2017 Beginning balance at Jan. 1, – gross $ 103 $ 128 $ 146 Prior period tax positions: Increases 60 6 20 Decreases (3 ) (8 ) (4 ) Current period tax positions 17 9 10 Settlements (4 ) (32 ) (44 ) Ending balance at Dec. 31, – gross $ 173 $ 103 $ 128

Long-term debt (Tables)

Long-term debt (Tables)	12 Months Ended
Long-term debt (Tables)	Dec. 31, 2019
Debt Disclosure [Abstract]
Summary of Long-Term Debt	Long-term debt Dec. 31, 2019 Dec. 31, 2018 (in millions) Rate Maturity Amount Rate Amount Senior debt: Fixed rate 1.95 - 4.60% 2020 - 2028 $ 23,519 2.05 - 5.45% $ 24,995 Floating rate 1.71 - 2.96% 2020 - 2038 2,328 2.61 - 3.86% 2,628 Subordinated debt (a) 3.00 - 7.50% 2021 - 2029 1,654 3.00 - 7.50% 1,540 Total $ 27,501 $ 29,163 (a) Fixed rate.

Shareholders' equity (Tables)

Shareholders' equity (Tables)	12 Months Ended
Shareholders' equity (Tables)	Dec. 31, 2019
Stockholders' Equity Note [Abstract]
Preferred Stock Summary	The following table summarizes BNY Mellon’s preferred stock issued and outstanding at Dec. 31, 2019 and Dec. 31, 2018 . Preferred stock summary (a) Total shares issued and outstanding Carrying value (b) (in millions) Dec. 31, Dec. 31, Per annum dividend rate 2019 2018 2019 2018 Series A Greater of (i) three-month LIBOR plus 0.565% for the related distribution period; or (ii) 4.000% 5,001 5,001 $ 500 $ 500 Series C 5.2% 5,825 5,825 568 568 Series D 4.50% to but excluding June 20, 2023, then a floating rate equal to the three-month LIBOR plus 2.46% 5,000 5,000 494 494 Series E 4.95% to and including June 20, 2020, then a floating rate equal to the three-month LIBOR plus 3.42% 10,000 10,000 990 990 Series F 4.625% to and including Sept. 20, 2026, then a floating rate equal to the three-month LIBOR plus 3.131% 10,000 10,000 990 990 Total 35,826 35,826 $ 3,542 $ 3,542 (a) All outstanding preferred stock is noncumulative perpetual preferred stock with a liquidation preference of $100,000 per share. (b) The carrying value of the Series C, Series D, Series E and Series F preferred stock is recorded net of issuance costs.
Summary of Preferred Dividends Paid	The table below presents the dividends paid on our preferred stock. Preferred dividends paid (dollars in millions, except per share amounts) Depositary shares per share 2019 2018 2017 Per share Total dividend Per share Total dividend Per share Total dividend Series A 100 (a) $ 4,055.55 $ 20 $ 4,055.55 $ 20 $ 4,055.55 $ 20 Series C 4,000 5,200.00 31 5,200.00 31 5,200.00 31 Series D 100 4,500.00 22 4,500.00 22 4,500.00 22 Series E 100 4,950.00 50 4,950.00 50 4,950.00 50 Series F 100 4,625.00 46 4,625.00 46 5,254.51 52 Total $ 169 $ 169 $ 175 (a) Represents Normal Preferred Capital Securities.
Schedule of Regulatory Capital Ratios	The regulatory capital ratios of our consolidated and largest bank subsidiary, The Bank of New York Mellon, are shown below. Consolidated and largest bank subsidiary regulatory capital ratios (a) Dec. 31, 2019 2018 Consolidated regulatory capital ratios: Common Equity Tier 1 (“CET1”) ratio 11.5 % 10.7 % Tier 1 capital ratio 13.7 12.8 Total capital ratio 14.4 13.6 Tier 1 leverage ratio 6.6 6.6 Supplementary leverage raio (“SLR”) (b) 6.1 6.0 The Bank of New York Mellon regulatory capital ratios: CET1 ratio 15.1 % 14.0 % Tier 1 capital ratio 15.1 14.3 Total capital ratio 15.2 14.7 Tier 1 leverage ratio 6.9 7.6 SLR (b) 6.4 6.8 (a) For our CET1, Tier 1 capital and Total capital ratios, our effective capital ratios under U.S. capital rules are the lower of the ratios as calculated under the Standardized and Advanced Approaches, which for the periods noted above was the Advanced Approaches. The Tier 1 leverage ratio is based on Tier 1 capital and quarterly average total assets. For BNY Mellon to qualify as “well capitalized,” its Tier 1 capital and Total capital ratios must be at least 6% and 10% , respectively. For The Bank of New York Mellon, our largest bank subsidiary, to qualify as “well capitalized,” its CET1, Tier 1 capital, Total capital and Tier 1 leverage ratios must be at least 6.5% , 8% , 10% and 5% , respectively. (b) The SLR is based on Tier 1 capital and total leverage exposure, which includes certain off-balance sheet exposures. For The Bank of New York Mellon to qualify as “well capitalized,” its SLR must be at least 6%.
Summary of Capital Components and Risk-Weighted Assets Determined Under the Standardized and Advanced Approaches	The following table presents our capital components and risk-weighted assets (“RWAs”) determined under the Standardized and Advanced Approaches, the average assets used for leverage capital purposes and leverage exposure used for SLR purposes. Regulatory capital ratio components Dec. 31, (in millions) 2019 2018 CET1: Common shareholders’ equity $ 37,941 $ 37,096 Adjustments for: Goodwill and intangible assets (a) (18,725 ) (18,806 ) Net pension fund assets (272 ) (320 ) Equity method investments (311 ) (361 ) Deferred tax assets (46 ) (42 ) Other (47 ) — Total CET1 18,540 17,567 Other Tier 1 capital: Preferred stock 3,542 3,542 Other (86 ) (65 ) Total Tier 1 capital $ 21,996 $ 21,044 Tier 2 capital: Subordinated debt $ 1,248 $ 1,250 Allowance for credit losses 216 252 Other (11 ) (10 ) Total Tier 2 capital – Standardized Approach 1,453 1,492 Excess of expected credit losses — 65 Less: Allowance for credit losses 216 252 Total Tier 2 capital – Advanced Approaches $ 1,237 $ 1,305 Total capital: Standardized Approach $ 23,449 $ 22,536 Advanced Approaches $ 23,233 $ 22,349 Risk-weighted assets: Standardized Approach $ 148,695 $ 149,618 Advanced Approaches: Credit Risk $ 95,490 $ 92,917 Market Risk 4,020 3,454 Operational Risk 61,388 68,300 Total Advanced Approaches $ 160,898 $ 164,671 Average assets for Tier 1 leverage ratio $ 334,869 $ 319,007 Total leverage exposure for SLR $ 362,452 $ 347,943 (a) Reduced by deferred tax liabilities associated with intangible assets and tax deductible goodwill.
Schedule of Capital Above Thresholds Table	The following table presents the amount of capital by which BNY Mellon and our largest bank subsidiary, The Bank of New York Mellon, exceeded the capital thresholds determined under U.S. capital rules. Capital above thresholds at Dec. 31, 2019 (in millions) Consolidated (a) The Bank of New York Mellon (b) CET1 $ 4,864 $ 11,045 Tier 1 capital 5,906 9,130 Total capital 3,925 6,623 Tier 1 leverage ratio 8,601 5,424 SLR 3,873 1,157 (a) Based on minimum required standards, with applicable buffers. (b) Based on well capitalized standards.

Variable interest entities an_2

Variable interest entities and securitization (Tables)	12 Months Ended
Variable interest entities and securitization (Tables)	Dec. 31, 2019
Securitizations And Variable Interest Entities Disclosure [Abstract]
Incremental Assets and Liabilities Included in Consolidated Financial Statements	The following table presents the incremental assets and liabilities included in the consolidated balance sheet as of Dec. 31, 2019 and Dec. 31, 2018 . The net assets of any consolidated VIE are solely available to settle the liabilities of the VIE and to settle any investors’ ownership liquidation requests, including any seed capital we invested in the VIE. Consolidated investments Dec. 31, 2019 Dec. 31, 2018 (in millions) Investment Management funds Securitization Total consolidated investments Investment Management funds Securitization Total consolidated investments Trading assets $ 229 $ 400 $ 629 $ 243 $ 400 $ 643 Other assets 16 — 16 220 — 220 Total assets $ 245 (a) $ 400 $ 645 $ 463 (b) $ 400 $ 863 Other liabilities $ 1 $ 387 $ 388 $ 2 $ 371 $ 373 Total liabilities $ 1 (a) $ 387 $ 388 $ 2 (b) $ 371 $ 373 Nonredeemable noncontrolling interests $ 102 (a) $ — $ 102 $ 101 (b) $ — $ 101 (a) Includes VMEs with assets of $50 million , liabilities of $1 million and nonredeemable noncontrolling interests of $1 million . (b) Includes VMEs with assets of $253 million , liabilities of $2 million and nonredeemable noncontrolling interests of less than $1 million .
Schedule of Variable Interest Entities	As of Dec. 31, 2019 and Dec. 31, 2018 , the following assets and liabilities related to the VIEs where we are not the primary beneficiary were included in our consolidated balance sheets and primarily related to accounting for our investments in qualified affordable housing and renewable energy projects. The maximum loss exposure indicated in the table below relates solely to our investments in, and unfunded commitments to, the VIEs. Non-consolidated VIEs Dec. 31, 2019 Dec. 31, 2018 (in millions) Assets Liabilities Maximum loss exposure Assets Liabilities Maximum loss exposure Securities - Available-for-sale (a) $ 208 $ — $ 208 $ 214 $ — $ 214 Other 2,400 422 2,822 2,450 479 2,929 (a) Includes investments in the Company’s sponsored CLOs.

Other comprehensive income (l_2

Other comprehensive income (loss) (Tables)	12 Months Ended
Other comprehensive income (loss) (Tables)	Dec. 31, 2019
Equity [Abstract]
Components of Other Comprehensive Income (Loss)	Components of other comprehensive income (loss) Year ended Dec. 31, 2019 2018 2017 (in millions) Pre-tax amount Tax (expense) benefit After-tax amount Pre-tax amount Tax (expense) benefit After-tax amount Pre-tax amount Tax (expense) benefit After-tax amount Foreign currency translation: Foreign currency translation adjustments arising during the period (a) $ 135 $ 16 $ 151 $ (157 ) $ (156 ) $ (313 ) $ 659 $ 194 $ 853 Total foreign currency translation 135 16 151 (157 ) (156 ) (313 ) 659 194 853 Unrealized gain (loss) on assets available-for-sale: Unrealized gain (loss) arising during period 680 (168 ) 512 (542 ) 126 (416 ) 237 (84 ) 153 Reclassification adjustment (b) 18 (4 ) 14 48 (12 ) 36 (3 ) — (3 ) Net unrealized gain (loss) on assets available-for-sale 698 (172 ) 526 (494 ) 114 (380 ) 234 (84 ) 150 Defined benefit plans: Prior service cost arising during the period (1 ) — (1 ) — — — — — — Net (loss) gain arising during the period (121 ) 34 (87 ) (244 ) 55 (189 ) 454 (112 ) 342 Foreign exchange adjustment — — — — — — 1 — 1 Amortization of prior service credit, net loss and initial obligation included in net periodic benefit cost (b) 52 (18 ) 34 93 (24 ) 69 100 (32 ) 68 Total defined benefit plans (70 ) 16 (54 ) (151 ) 31 (120 ) 555 (144 ) 411 Unrealized gain (loss) on cash flow hedges: Unrealized hedge gain (loss) arising during period 16 (7 ) 9 (15 ) 4 (11 ) 33 (9 ) 24 Reclassification of net loss (gain) to net income: Interest rate contracts - interest expense (7 ) 2 (5 ) — — — — — — Foreign exchange (“FX”) contracts - other revenue — — — (2 ) — (2 ) (8 ) 2 (6 ) FX contracts - trading revenue — — — — — — (2 ) 1 (1 ) FX contracts - staff expense (3 ) 2 (1 ) 4 (1 ) 3 (10 ) 2 (8 ) Total reclassifications to net income (10 ) 4 (6 ) 2 (1 ) 1 (20 ) 5 (15 ) Net unrealized gain (loss) on cash flow hedges 6 (3 ) 3 (13 ) 3 (10 ) 13 (4 ) 9 Total other comprehensive income (loss) $ 769 $ (143 ) $ 626 $ (815 ) $ (8 ) $ (823 ) $ 1,461 $ (38 ) $ 1,423 (a) Includes the impact of hedges of net investments in foreign subsidiaries. See Note 23 for additional information. (b) The reclassification adjustment related to the unrealized gain (loss) on assets available-for-sale is recorded as net securities gains on the consolidated income statement. The amortization of prior service credit, net loss and initial obligation included in net periodic benefit cost is recorded as staff expense on the consolidated income statement. Changes in accumulated other comprehensive income (loss) attributable to The Bank of New York Mellon Corporation shareholders Unrealized gain (loss) on assets available-for-sale Unrealized gain (loss) on cash flow hedges Total accumulated other comprehensive income (loss), net of tax (in millions) Foreign currency translation Pensions Other post-retirement benefits 2016 ending balance $ (2,451 ) $ (1,306 ) $ (42 ) $ 36 $ (2 ) $ (3,765 ) Change in 2017 838 419 (8 ) 150 9 1,408 2017 ending balance $ (1,613 ) $ (887 ) $ (50 ) $ 186 $ 7 $ (2,357 ) Adjustment for the cumulative effect of applying ASU 2017-12 for derivatives and hedging — — — (2 ) — (2 ) Adjusted balance at Jan. 1, 2018 (1,613 ) (887 ) (50 ) 184 7 (2,359 ) Change in 2018 (302 ) (118 ) (2 ) (380 ) (10 ) (812 ) 2018 ending balance $ (1,915 ) $ (1,005 ) $ (52 ) $ (196 ) $ (3 ) $ (3,171 ) Adjustment for the cumulative effect of applying ASU 2018-02 for income taxes 115 (213 ) — 6 2 (90 ) Adjusted balance at Jan. 1, 2019 (1,800 ) (1,218 ) (52 ) (190 ) (1 ) (3,261 ) Change in 2019 148 (57 ) 3 526 3 623 2019 ending balance $ (1,652 ) $ (1,275 ) $ (49 ) $ 336 $ 2 $ (2,638 )

Stock-based compensation (Table

Stock-based compensation (Tables)	12 Months Ended
Stock-based compensation (Tables)	Dec. 31, 2019
Share-based Payment Arrangement [Abstract]
Summary of Non-vested PSU, Restricted Stock, and RSU Activity	The following table summarizes our non-vested PSU, restricted stock and RSU activity for 2019 . Non-vested PSU, restricted stock and RSU activity Number of shares Weighted-average fair value at grant date Non-vested PSUs, restricted stock and RSUs at Dec. 31, 2018 14,211,712 $ 49.43 Granted 6,179,808 51.59 Vested (6,201,276 ) 43.21 Forfeited (1,456,946 ) 49.74 Non-vested PSUs, restricted stock and RSUs at Dec. 31, 2019 12,733,298 $ 50.77
Summary of Stock Option Activity	A summary of the status of our options as of Dec. 31, 2019 , and changes during the year, is presented below: Stock option activity Shares subject to option Weighted-average exercise price Weighted-average remaining contractual term (in years) Balance at Dec. 31, 2018 6,714,283 $ 25.67 2.0 Granted — — Exercised (2,543,235 ) 25.14 Canceled/Expired (27,473 ) 21.93 Balance at Dec. 31, 2019 4,143,575 $ 26.03 1.4 Vested and expected to vest at Dec. 31, 2019 4,143,575 26.03 1.4 Exercisable at Dec. 31, 2019 4,143,575 26.03 1.4
Summary of Stock Options Outstanding by Exercise Price	Stock options outstanding at Dec. 31, 2019 Options outstanding Options exercisable (a) Range of exercise prices Outstanding Weighted-average remaining contractual life (in years) Weighted-average exercise price Exercisable Weighted-average exercise price $ 18 to 31 4,143,575 1.4 $ 26.03 4,143,575 $ 26.03 (a) At Dec. 31, 2018 and Dec. 31, 2017 , 6,714,283 and 9,302,140 options were exercisable at a weighted-average price per common share of $25.67 and $27.27 , respectively.
Aggregate Intrinsic Value of Options	Aggregate intrinsic value of options (in millions) 2019 2018 2017 Outstanding at Dec. 31, $ 101 $ 144 $ 247 Exercisable at Dec. 31, $ 101 $ 144 $ 247

Employee benefit plans (Tables)

Employee benefit plans (Tables)	12 Months Ended
Employee benefit plans (Tables)	Dec. 31, 2019
Defined Benefit Plan [Abstract]
Combined Data for Domestic and Foreign Defined Benefit Pension and Post Retirement Healthcare Plans	The following tables report the combined data for our domestic and foreign defined benefit pension and post-retirement healthcare plans. Pension Benefits Healthcare Benefits Domestic Foreign Domestic Foreign (dollars in millions) 2019 2018 2019 2018 2019 2018 2019 2018 Weighted-average assumptions used to determine benefit obligations Discount rate 3.45 % 4.45 % 2.02 % 2.95 % 3.45 % 4.45 % 2.10 % 3.10 % Rate of compensation increase N/A N/A 3.19 2.98 3.00 3.00 N/A N/A Cash balance interest crediting rate 4.00 4.00 N/A N/A N/A N/A N/A N/A Change in benefit obligation (a) Benefit obligation at beginning of period $ (4,123 ) $ (4,405 ) $ (1,104 ) $ (1,322 ) $ (149 ) $ (175 ) $ (5 ) $ (4 ) Service cost — — (11 ) (28 ) (1 ) (1 ) — — Interest cost (178 ) (169 ) (32 ) (32 ) (6 ) (7 ) — — Amendments — — (1 ) — — — — — Actuarial gain (loss) (585 ) 219 (264 ) 173 (1 ) 22 (1 ) (1 ) Curtailments — — — 11 — — — — Benefits paid 227 232 40 25 12 12 — — Foreign exchange adjustment N/A N/A (22 ) 69 N/A N/A — — Benefit obligation at end of period (4,659 ) (4,123 ) (1,394 ) (1,104 ) (145 ) (149 ) (6 ) (5 ) Change in fair value of plan assets Fair value at beginning of period 5,040 5,496 1,316 1,393 99 107 — — Actual return on plan assets 910 (257 ) 191 1 18 (8 ) — — Employer contributions 15 33 30 22 12 12 — — Benefit payments (227 ) (232 ) (40 ) (25 ) (12 ) (12 ) — — Foreign exchange adjustment N/A N/A 32 (75 ) N/A N/A — — Fair value at end of period 5,738 5,040 1,529 1,316 117 99 — — Funded status at end of period $ 1,079 $ 917 $ 135 $ 212 $ (28 ) $ (50 ) $ (6 ) $ (5 ) Amounts recognized in accumulated other comprehensive loss (income) consist of: Net loss $ 1,557 $ 1,598 $ 221 $ 105 $ 70 $ 84 $ 1 $ — Prior service cost (credit) — — 2 1 (33 ) (40 ) — — Total loss (before tax effects) $ 1,557 $ 1,598 $ 223 $ 106 $ 37 $ 44 $ 1 $ — (a) The benefit obligation for pension benefits is the projected benefit obligation, and for healthcare benefits, it is the accumulated benefit obligation.
Summary of Net Periodic Benefit Cost (Credit)	Net periodic benefit (credit) cost Pension Benefits Healthcare Benefits Domestic Foreign Domestic Foreign (dollars in millions) 2019 2018 2017 2019 2018 2017 2019 2018 2017 2019 2018 2017 Weighted-average assumptions as of Jan. 1: Market-related value of plan assets $ 5,304 $ 5,238 $ 5,026 $ 1,277 $ 1,266 $ 994 $ 111 $ 108 $ 102 N/A N/A N/A Discount rate 4.45 % 3.97 % 4.35 % 2.95 % 2.45 % 2.53 % 4.45 % 3.97 % 4.35 % 3.10 % 2.50 % 2.60 % Expected rate of return on plan assets 6.500 6.625 6.625 3.54 4.56 4.61 6.500 6.625 6.625 N/A N/A N/A Rate of compensation increase N/A N/A N/A 2.98 3.02 3.60 3.00 3.00 3.00 N/A N/A N/A Cash balance interest crediting rate 4.00 4.00 4.00 N/A N/A N/A N/A N/A N/A N/A N/A N/A Components of net periodic benefit (credit) cost : Service cost $ — $ — $ — $ 11 $ 28 $ 31 $ 1 $ 1 $ 1 $ — $ — $ — Interest cost 178 169 180 32 32 33 6 7 7 — — — Expected return on assets (337 ) (339 ) (325 ) (45 ) (57 ) (50 ) (7 ) (8 ) (7 ) — — — Amortization of: Prior service cost (credit) — — — — — — (7 ) (9 ) (10 ) — — — Net actuarial loss 53 68 67 2 22 35 4 7 6 — — — Settlement loss — 5 2 — — — — — — — — — Net periodic benefit (credit) cost $ (106 ) $ (97 ) $ (76 ) $ — $ 25 $ 49 $ (3 ) $ (2 ) $ (3 ) $ — $ — $ —
Changes in Other Comprehensive (Income) Loss	Changes in other comprehensive loss (income) in 2019 Pension Benefits Healthcare Benefits (in millions) Domestic Foreign Domestic Foreign Net loss (gain) arising during period $ 12 $ 118 $ (10 ) $ 1 Recognition of prior years’ net (loss) (53 ) (2 ) (4 ) — Prior service cost arising during the period — 1 — — Recognition of prior years’ service credit — — 7 — Total recognized in other comprehensive (income) loss (before tax effects) $ (41 ) $ 117 $ (7 ) $ 1
Defined Benefit Plan Funded Status of Plan	Domestic Foreign (in millions) 2019 2018 2019 2018 Pension benefits: Prepaid benefit cost $ 1,249 $ 1,077 $ 222 $ 280 Accrued benefit cost (170 ) (160 ) (87 ) (68 ) Total pension benefits $ 1,079 $ 917 $ 135 $ 212 Healthcare benefits: Accrued benefit cost $ (28 ) $ (50 ) $ (6 ) $ (5 ) Total healthcare benefits $ (28 ) $ (50 ) $ (6 ) $ (5 )
Plan with Obligations in Excess of Plan Assets	Plans with obligations in excess of plan assets Pension Benefits Healthcare Benefits Domestic Foreign Domestic Foreign (in millions) 2019 2018 2019 2018 2019 2018 2019 2018 Projected benefit obligation $ 170 $ 160 $ 384 $ 245 N/A N/A N/A N/A Fair value of plan assets — — 297 177 N/A N/A N/A N/A Accumulated benefit obligation 170 160 164 67 85 80 6 5 Fair value of plan assets — — 114 27 — — — —
Benefit Payments for BNY Mellon's Pension and Healthcare Plans expected to be Paid	The following benefit payments for the pension and healthcare plans, which reflect expected future service as appropriate, are expected to be paid over the next 10 years: Expected benefit payments (in millions) Domestic Foreign Pension benefits: Year 2020 $ 254 $ 20 2021 265 20 2022 260 21 2023 266 24 2024 275 24 2025-2029 1,333 144 Total pension benefits $ 2,653 $ 253 Healthcare benefits: Year 2020 $ 12 $ — 2021 10 — 2022 10 — 2023 10 — 2024 9 — 2025-2029 42 1 Total healthcare benefits $ 93 $ 1
Pension Investment Asset Allocation	Our pension assets were invested as follows: Asset allocations Domestic Foreign 2019 2018 2019 2018 Fixed income 56 % 45 % 80 % 36 % Equities 42 52 8 48 Alternative investments 2 2 10 9 Private equities — 1 — — Real estate — — — 4 Cash — — 2 3 Total pension benefits 100 % 100 % 100 % 100 %
Pension Plan Investment Assets Measured at Fair Value	Plan assets measured at fair value on a recurring basis— domestic plans at Dec. 31, 2019 (in millions) Level 1 Level 2 Level 3 Total fair value Common and preferred stock: U.S. equity $ 1,638 $ — $ — $ 1,638 Non-U.S. equity 195 — — 195 Derivatives — (130 ) — (130 ) Collective trust funds: Commingled — 1,982 — 1,982 U.S. equity — 688 — 688 Fixed income: U.S. Treasury securities 362 — — 362 U.S. government agencies — 7 — 7 Sovereign government obligations 3 — — 3 U.S. corporate bonds — 814 — 814 Other — 15 — 15 Mutual funds 3 — — 3 Total domestic plan assets in the fair value hierarchy $ 2,201 $ 3,376 $ — $ 5,577 Other assets measured at NAV: Funds of funds 134 Venture capital and partnership interests 27 Total domestic plan assets, at fair value $ 5,738 Plan assets measured at fair value on a recurring basis— foreign plans at Dec. 31, 2019 (in millions) Level 1 Level 2 Level 3 Total fair value Equity funds $ — $ 129 $ — $ 129 Sovereign/government obligation funds — 130 — 130 Corporate debt funds — 1,091 — 1,091 Cash and currency 20 — — 20 Total foreign plan assets in the fair value hierarchy $ 20 $ 1,350 $ — $ 1,370 Other assets measured at NAV 159 Total foreign plan assets, at fair value $ 1,529 Plan assets measured at fair value on a recurring basis— domestic plans at Dec. 31, 2018 (in millions) Level 1 Level 2 Level 3 Total fair value Common and preferred stock: U.S. equity $ 1,514 $ — $ — $ 1,514 Non-U.S. equity 160 — — 160 Collective trust funds: Commingled — 435 — 435 U.S. equity — 934 — 934 Fixed income: U.S. Treasury securities 630 — — 630 U.S. government agencies — 44 — 44 Sovereign government obligations 3 5 — 8 U.S. corporate bonds — 972 — 972 Other — 69 — 69 Mutual funds 114 — — 114 Total domestic plan assets in the fair value hierarchy $ 2,421 $ 2,459 $ — $ 4,880 Other assets measured at NAV: Funds of funds 130 Venture capital and partnership interests 30 Total domestic plan assets, at fair value $ 5,040 Plan assets measured at fair value on a recurring basis— foreign plans at Dec. 31, 2018 (in millions) Level 1 Level 2 Level 3 Total fair value Equity funds $ — $ 194 $ — $ 194 Sovereign/government obligation funds — 126 — 126 Corporate debt funds — 418 — 418 Cash and currency 356 — — 356 Total foreign plan assets in the fair value hierarchy $ 356 $ 738 $ — $ 1,094 Other assets measured at NAV 222 Total foreign plan assets, at fair value $ 1,316
Pension Plan Assets Valued Using Net Asset Value	Assets valued using NAV at Dec. 31, 2019 (dollars in millions) Fair value Unfunded commitments Redemption frequency Redemption notice period Funds of funds (a) $ 136 $ — Monthly 30-45 days Venture capital and partnership interests (b) 158 — N/A N/A Property funds (c) 4 — Monthly 0-90 days Other contracts (d) 22 — N/A N/A Total $ 320 $ — Assets valued using NAV at Dec. 31, 2018 (dollars in millions) Fair value Unfunded commitments Redemption frequency Redemption notice period Funds of funds (a) $ 147 $ — Monthly 30-45 days Venture capital and partnership interests (b) 148 — N/A N/A Property funds (c) 52 — Monthly 0-90 days Corporate debt 19 — N/A N/A Other contracts (d) 16 — N/A N/A Total $ 382 $ — (a) Funds of funds include multi-strategy hedge funds that utilize investment strategies that invest over both long-term investment and short-term investment horizons. (b) Venture capital and partnership interests do not have redemption rights. Distributions from such funds will be received as the underlying investments are liquidated. (c) Property funds include funds invested in regional real estate vehicles that hold direct interest in real estate properties. (d) Other contracts include assets invested in pooled accounts at insurance companies that are privately valued by the asset manager.

Company financial information_2

Company financial information (Parent Corporation) (Tables)	12 Months Ended
Company financial information (Parent Corporation) (Tables)	Dec. 31, 2019
Condensed Financial Information Disclosure [Abstract]
Condensed Income Statement - The Bank of New York Mellon Corporation (Parent Corporation)	Year ended Dec. 31, (in millions) 2019 2018 2017 Dividends from bank subsidiaries $ 3,209 $ 3,874 $ 1,405 Dividends from nonbank subsidiaries 2,075 1,869 382 Interest revenue from bank subsidiaries 4 13 25 Interest revenue from nonbank subsidiaries 153 200 171 (Loss) gain on securities held for sale (11 ) 1 — Other revenue 39 36 67 Total revenue 5,469 5,993 2,050 Interest expense (including, $64, $59, $73, to subsidiaries, respectively) 941 658 663 Other expense 197 439 254 Total expense 1,138 1,097 917 Income before income taxes and equity in undistributed net income of subsidiaries 4,331 4,896 1,133 (Benefit) for income taxes (208 ) (165 ) (526 ) Equity in undistributed net income: Bank subsidiaries (139 ) (508 ) 1,524 Nonbank subsidiaries 41 (287 ) 907 Net income 4,441 4,266 4,090 Preferred stock dividends (169 ) (169 ) (175 ) Net income applicable to common shareholders of The Bank of New York Mellon Corporation $ 4,272 $ 4,097 $ 3,915
Condensed Balance Sheet - The Bank of New York Mellon Corporation (Parent Corporation)	Dec. 31, (in millions) 2019 2018 Assets: Cash and due from banks $ 345 $ 909 Securities 8 27 Investment in and advances to subsidiaries and associated companies: Banks 32,511 31,285 Other 36,948 37,986 Subtotal 69,459 69,271 Corporate-owned life insurance 773 761 Other assets 319 740 Total assets $ 70,904 $ 71,708 Liabilities: Deferred compensation $ 455 $ 445 Affiliate borrowings 1,500 1,616 Other liabilities 1,631 1,246 Long-term debt 25,835 27,763 Total liabilities 29,421 31,070 Shareholders’ equity 41,483 40,638 Total liabilities and shareholders’ equity $ 70,904 $ 71,708
Condensed Statement of Cash Flows - The Bank of New York Mellon Corporation (Parent Corporation)	Year ended Dec. 31, (in millions) 2019 2018 2017 Operating activities: Net income $ 4,441 $ 4,266 $ 4,090 Adjustments to reconcile net income to net cash provided by operating activities: Equity in undistributed net loss (income) of subsidiaries 98 795 (2,431 ) Change in accrued interest receivable (12 ) 27 (6 ) Change in accrued interest payable (17 ) 29 42 Change in taxes payable (a) 331 224 (600 ) Other, net (107 ) (257 ) 38 Net cash provided by operating activities 4,734 5,084 1,133 Investing activities: Purchases of securities — — (991 ) Proceeds from sales of securities — 13 2,729 Change in loans — — 7 Acquisitions of, investments in, and advances to subsidiaries (b) 1,495 (53 ) (7,208 ) Other, net — 1 — Net cash provided by (used for) investing activities 1,495 (39 ) (5,463 ) Financing activities: Proceeds from issuance of long-term debt 1,745 4,144 4,738 Repayments of long-term debt (4,250 ) (3,650 ) (997 ) Change in advances from subsidiaries 242 (1,561 ) (3,930 ) Issuance of common stock 86 120 465 Treasury stock acquired (3,327 ) (3,269 ) (2,686 ) Cash dividends paid (1,289 ) (1,221 ) (1,076 ) Net cash (used for) financing activities (6,793 ) (5,437 ) (3,486 ) Change in cash and due from banks (564 ) (392 ) (7,816 ) Cash and due from banks at beginning of year 909 1,301 9,117 Cash and due from banks at end of year $ 345 $ 909 $ 1,301 Supplemental disclosures Interest paid $ 958 $ 629 $ 705 Income taxes paid 2 12 61 Income taxes refunded — 7 15 (a) Includes payments received from subsidiaries for taxes of $823 million in 2019 , $837 million in 2018 and $189 million in 2017 . (b) Includes $2,139 million of cash outflows, net of $3,634 million of cash inflows in 2019 , $2,807 million of cash outflows, net of $2,754 million of cash inflows in 2018 and $10,296 million of cash outflows, net of $3,088 million of cash inflows in 2017 .

Fair value measurement (Tables)

Fair value measurement (Tables)	12 Months Ended
Fair value measurement (Tables)	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Financial Instruments Carried at Fair Value on Recurring Basis	The following tables present the financial instruments carried at fair value at Dec. 31, 2019 and Dec. 31, 2018 , by caption on the consolidated balance sheet and by the three-level valuation hierarchy. We have included credit ratings information in certain of the tables because the information indicates the degree of credit risk to which we are exposed, and significant changes in ratings classifications could result in increased risk for us. Assets measured at fair value on a recurring basis at Dec. 31, 2019 Total carrying (dollars in millions) Level 1 Level 2 Level 3 Netting (a) Available-for-sale securities: Agency RMBS $ — $ 27,043 $ — $ — $ 27,043 U.S. Treasury 15,431 — — — 15,431 Sovereign debt/sovereign guaranteed 7,784 4,862 — — 12,646 Agency commercial MBS — 9,417 — — 9,417 Foreign covered bonds — 4,197 — — 4,197 CLOs — 4,063 — — 4,063 Supranational — 3,709 — — 3,709 Foreign government agencies — 2,643 — — 2,643 Non-agency commercial MBS — 2,178 — — 2,178 Other ABS — 2,143 — — 2,143 U.S. government agencies — 1,949 — — 1,949 Non-agency RMBS (b) — 1,233 — — 1,233 State and political subdivisions — 1,044 — — 1,044 Corporate bonds — 853 — — 853 Other debt securities — 1 — — 1 Total available-for-sale securities 23,215 65,335 — — 88,550 Trading assets: Debt instruments 1,568 4,243 — — 5,811 Equity instruments (c) 4,539 — — — 4,539 Derivative assets not designated as hedging: Interest rate 4 3,686 — (1,792 ) 1,898 Foreign exchange — 5,331 — (4,021 ) 1,310 Equity and other contracts — 19 — (6 ) 13 Total derivative assets not designated as hedging 4 9,036 — (5,819 ) 3,221 Total trading assets 6,111 13,279 — (5,819 ) 13,571 Other assets: Derivative assets designated as hedging: Foreign exchange — 21 — — 21 Total derivative assets designated as hedging — 21 — — 21 Other assets (d) 38 179 — — 217 Assets measured at NAV (d) 181 Subtotal assets of operations at fair value 29,364 78,814 — (5,819 ) 102,540 Percentage of assets of operations prior to netting 27 % 73 % — % Assets of consolidated investment management funds 212 33 — — 245 Total assets $ 29,576 $ 78,847 $ — $ (5,819 ) $ 102,785 Percentage of total assets prior to netting 27 % 73 % — % Liabilities measured at fair value on a recurring basis at Dec. 31, 2019 Total carrying (dollars in millions) Level 1 Level 2 Level 3 Netting (a) Trading liabilities: Debt instruments $ 1,477 $ 107 $ — $ — $ 1,584 Equity instruments 73 — — — 73 Derivative liabilities not designated as hedging: Interest rate 6 3,244 — (1,986 ) 1,264 Foreign exchange — 5,340 — (3,428 ) 1,912 Equity and other contracts 3 6 — (1 ) 8 Total derivative liabilities not designated as hedging 9 8,590 — (5,415 ) 3,184 Total trading liabilities 1,559 8,697 — (5,415 ) 4,841 Long-term debt (c) — 387 — — 387 Other liabilities – derivative liabilities designated as hedging: Interest rate — 350 — — 350 Foreign exchange — 257 — — 257 Total other liabilities – derivative liabilities designated as hedging — 607 — — 607 Subtotal liabilities of operations at fair value 1,559 9,691 — (5,415 ) 5,835 Percentage of liabilities of operations prior to netting 14 % 86 % — % Liabilities of consolidated investment management funds 1 — — — 1 Total liabilities $ 1,560 $ 9,691 $ — $ (5,415 ) $ 5,836 Percentage of total liabilities prior to netting 14 % 86 % — % (a) ASC 815, Derivatives and Hedging, permits the netting of derivative receivables and derivative payables under legally enforceable master netting agreements and permits the netting of cash collateral. Netting is applicable to derivatives not designated as hedging instruments included in trading assets or trading liabilities and derivatives designated as hedging instruments included in other assets or other liabilities. Netting is allocated to the derivative products based on the net fair value of each product. (b) Includes $640 million in Level 2 that was included in the former Grantor Trust. (c) Includes certain interests in securitizations. (d) Includes seed capital, private equity investments and other assets. Assets measured at fair value on a recurring basis at Dec. 31, 2018 Total carrying value (dollars in millions) Level 1 Level 2 Level 3 Netting (a) Available-for-sale securities: Agency RMBS $ — $ 25,308 $ — $ — $ 25,308 U.S. Treasury 20,076 — — — 20,076 Sovereign debt/sovereign guaranteed 6,613 4,137 — — 10,750 Agency commercial MBS — 9,691 — — 9,691 CLOs — 3,364 — — 3,364 Supranational — 2,984 — — 2,984 Foreign covered bonds — 2,878 — — 2,878 State and political subdivisions — 2,247 — — 2,247 Other ABS — 1,773 — — 1,773 U.S. government agencies — 1,657 — — 1,657 Non-agency commercial MBS — 1,464 — — 1,464 Non-agency RMBS (b) — 1,325 — — 1,325 Foreign government agencies — 1,161 — — 1,161 Corporate bonds — 1,054 — — 1,054 Other debt securities — 77 — — 77 Total available-for-sale securities 26,689 59,120 — — 85,809 Trading assets: Debt instruments 801 2,594 — — 3,395 Equity instruments (c) 1,114 — — — 1,114 Derivative assets not designated as hedging: Interest rate 7 3,583 — (2,202 ) 1,388 Foreign exchange — 4,807 — (3,724 ) 1,083 Equity and other contracts 9 59 — (13 ) 55 Total derivative assets not designated as hedging 16 8,449 — (5,939 ) 2,526 Total trading assets 1,931 11,043 — (5,939 ) 7,035 Other assets : Derivative assets designated as hedging: Interest rate — 23 — — 23 Foreign exchange — 266 — — 266 Total derivative assets designated as hedging — 289 — — 289 Other assets (d) 68 170 — — 238 Assets measured at NAV (d) 215 Subtotal assets of operations at fair value 28,688 70,622 — (5,939 ) 93,586 Percentage of assets of operations prior to netting 29 % 71 % — % Assets of consolidated investment management funds 210 253 — — 463 Total assets $ 28,898 $ 70,875 $ — $ (5,939 ) $ 94,049 Percentage of total assets prior to netting 29 % 71 % — % Liabilities measured at fair value on a recurring basis at Dec. 31, 2018 Total carrying value (dollars in millions) Level 1 Level 2 Level 3 Netting (a) Trading liabilities: Debt instruments $ 1,006 $ 118 $ — $ — $ 1,124 Equity instruments 75 — — — 75 Derivative liabilities not designated as hedging: Interest rate 12 3,104 — (2,508 ) 608 Foreign exchange — 5,215 — (3,626 ) 1,589 Equity and other contracts 1 118 — (36 ) 83 Total derivative liabilities not designated as hedging 13 8,437 — (6,170 ) 2,280 Total trading liabilities 1,094 8,555 — (6,170 ) 3,479 Long-term debt (c) — 371 — — 371 Other liabilities – derivative liabilities designated as hedging: Interest rate — 74 — — 74 Foreign exchange — 14 — — 14 Total other liabilities – derivative liabilities designated as hedging — 88 — — 88 Subtotal liabilities of operations at fair value 1,094 9,014 — (6,170 ) 3,938 Percentage of liabilities of operations prior to netting 11 % 89 % — % Liabilities of consolidated investment management funds 2 — — — 2 Total liabilities $ 1,096 $ 9,014 $ — $ (6,170 ) $ 3,940 Percentage of total liabilities prior to netting 11 % 89 % — % (a) ASC 815, Derivatives and Hedging, permits the netting of derivative receivables and derivative payables under legally enforceable master netting agreements and permits the netting of cash collateral. Netting is applicable to derivatives not designated as hedging instruments included in trading assets or trading liabilities and derivatives designated as hedging instruments included in other assets or other liabilities. Netting is allocated to the derivative products based on the net fair value of each product. (b) Includes $832 million in Level 2 that was included in the former Grantor Trust. (c) Includes certain interests in securitizations. (d) Includes seed capital, private equity investments and other assets.
Details Of Certain Items Measured At Fair Value on Recurring Basis	Details of certain available-for-sale securities measured at fair value on a recurring basis Dec. 31, 2019 Dec. 31, 2018 Total carrying value Ratings (a) Total carrying value Ratings (a) AAA/ AA- A+/ A- BBB+/ BBB- BB+ and lower AAA/ AA- A+/ A- BBB+/ BBB- BB+ and lower (dollars in millions) (b) (b) Non-agency RMBS (c) , originated in: 2007-2019 $ 464 55 % 1 % — % 44 % $ 315 15 % 2 % 3 % 80 % 2006 291 — 21 — 79 363 — 19 — 81 2005 305 5 2 8 85 396 9 1 7 83 2004 and earlier 173 22 24 4 50 251 16 24 11 49 Total non-agency RMBS $ 1,233 25 % 9 % 3 % 63 % $ 1,325 9 % 11 % 5 % 75 % Non-agency commercial MBS originated in: 2009-2019 $ 2,178 98 % 2 % — % — % $ 1,464 96 % 4 % — % — % Foreign covered bonds: Canada $ 1,798 100 % — % — % — % $ 1,524 100 % — % — % — % UK 984 100 — — — 529 100 — — — Australia 431 100 — — — 333 100 — — — Germany 357 100 — — — — — — — — Norway 287 100 — — — 150 100 — — — Other 340 100 — — — 342 100 — — — Total foreign covered bonds $ 4,197 100 % — % — % — % $ 2,878 100 % — % — % — % Sovereign debt/sovereign guaranteed: UK $ 3,318 100 % — % — % — % $ 2,153 100 % — % — % — % Germany 1,997 100 — — — 1,826 100 — — — Spain 1,453 — 6 94 — 1,365 — — 100 — France 1,272 100 — — — 1,548 100 — — — Italy 1,260 — — 100 — 939 — — 100 — Netherlands 791 100 — — — 875 100 — — — Singapore 742 100 — — — 165 100 — — — Hong Kong 411 100 — — — 450 100 — — — Ireland 301 — 100 — — 625 — 100 — — Other (d) 1,101 62 26 — 12 804 87 — — 13 Total sovereign debt/sovereign guaranteed $ 12,646 73 % 5 % 21 % 1 % $ 10,750 72 % 6 % 21 % 1 % Foreign government agencies: Germany $ 1,131 100 % — % — % — % $ 401 100 % — % — % — % Netherlands 678 100 — — — 461 100 — — — Finland 245 100 — — — 185 100 — — — Other 589 78 22 — — 114 100 — — — Total foreign government agencies $ 2,643 95 % 5 % — % — % $ 1,161 100 % — % — % — % (a) Represents ratings by S&P or the equivalent. (b) At Dec. 31, 2019 and Dec. 31, 2018 , sovereign debt/sovereign guaranteed securities were included in Level 1 and Level 2 in the valuation hierarchy. All other assets in the table are Level 2 assets in the valuation hierarchy. (c) Includes $640 million at Dec. 31, 2019 and $832 million at Dec. 31, 2018 that were included in the former Grantor Trust. (d) Includes non-investment grade sovereign debt/sovereign guaranteed securities related to Brazil of $134 million at Dec. 31, 2019 and $107 million at Dec. 31, 2018 .
Assets Measured at Fair Value on Nonrecurring Basis	The following table presents the financial instruments carried on the consolidated balance sheet by caption and level in the fair value hierarchy as of Dec. 31, 2019 and Dec. 31, 2018 . Assets measured at fair value on a nonrecurring basis Dec. 31, 2019 Dec. 31, 2018 Total carrying value Total carrying value (in millions) Level 1 Level 2 Level 3 Level 1 Level 2 Level 3 Loans (a) $ — $ 58 $ — $ 58 $ — $ 64 $ 4 $ 68 Other assets (b) — 64 — 64 — 57 — 57 Total assets at fair value on a nonrecurring basis $ — $ 122 $ — $ 122 $ — $ 121 $ 4 $ 125 (a) The fair value of these loans decreased $1 million in both 2019 and 2018 , based on the fair value of the underlying collateral, as required by guidance in ASC 310, Receivables, with an offset to the allowance for credit losses. (b) Includes non-readily marketable equity securities carried at cost with upward or downward adjustments and other assets received in satisfaction of debt.
Summary of Financial Instruments Not Carried at Fair Value	The following tables present the estimated fair value and the carrying amount of financial instruments not carried at fair value on the consolidated balance sheet at Dec. 31, 2019 and Dec. 31, 2018 , by caption on the consolidated balance sheet and by the valuation hierarchy. Summary of financial instruments Dec. 31, 2019 (in millions) Level 1 Level 2 Level 3 Total Carrying Assets: Interest-bearing deposits with the Federal Reserve and other central banks $ — $ 95,042 $ — $ 95,042 $ 95,042 Interest-bearing deposits with banks — 14,832 — 14,832 14,811 Federal funds sold and securities purchased under resale agreements — 30,182 — 30,182 30,182 Securities held-to-maturity 4,630 30,175 — 34,805 34,483 Loans (a) — 54,194 — 54,194 53,718 Other financial assets 4,830 1,233 — 6,063 6,063 Total $ 9,460 $ 225,658 $ — $ 235,118 $ 234,299 Liabilities: Noninterest-bearing deposits $ — $ 57,630 $ — $ 57,630 $ 57,630 Interest-bearing deposits — 200,846 — 200,846 201,836 Federal funds purchased and securities sold under repurchase agreements — 11,401 — 11,401 11,401 Payables to customers and broker-dealers — 18,758 — 18,758 18,758 Commercial paper — 3,959 — 3,959 3,959 Borrowings — 917 — 917 917 Long-term debt — 27,858 — 27,858 27,114 Total $ — $ 321,369 $ — $ 321,369 $ 321,615 (a) Does not include the leasing portfolio. Summary of financial instruments Dec. 31, 2018 (in millions) Level 1 Level 2 Level 3 Total estimated Carrying Assets: Interest-bearing deposits with the Federal Reserve and other central banks $ — $ 67,988 $ — $ 67,988 $ 67,988 Interest-bearing deposits with banks — 14,168 — 14,168 14,148 Federal funds sold and securities purchased under resale agreements — 46,795 — 46,795 46,795 Securities held-to-maturity 5,512 27,790 — 33,302 33,982 Loans (a) — 55,142 — 55,142 55,161 Other financial assets 5,864 1,383 — 7,247 7,247 Total $ 11,376 $ 213,266 $ — $ 224,642 $ 225,321 Liabilities: Noninterest-bearing deposits $ — $ 70,783 $ — $ 70,783 $ 70,783 Interest-bearing deposits — 165,914 — 165,914 167,995 Federal funds purchased and securities sold under repurchase agreements — 14,243 — 14,243 14,243 Payables to customers and broker-dealers — 19,731 — 19,731 19,731 Commercial paper — 1,939 — 1,939 1,939 Borrowings — 3,584 — 3,584 3,584 Long-term debt — 28,347 — 28,347 28,792 Total $ — $ 304,541 $ — $ 304,541 $ 307,067 (a) Does not include the leasing portfolio.

Fair value option (Tables)

Fair value option (Tables)	12 Months Ended
Fair value option (Tables)	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Assets and Liabilities of Consolidated Investment Management Funds, at Fair Value	The following table presents the changes in fair value of long-term debt recorded in foreign exchange and other trading revenue in the consolidated income statement. Change in fair value of long-term debt (a) Year ended Dec. 31, (in millions) 2019 2018 2017 Foreign exchange and other trading revenue $ (16 ) $ (4 ) $ (4 ) (a) The changes in fair value are approximately offset by an economic hedge included in foreign exchange and other trading revenue. Assets and liabilities of consolidated investment management funds, at fair value Dec. 31, (in millions) 2019 2018 Assets of consolidated investment management funds: Trading assets $ 229 $ 243 Other assets 16 220 Total assets of consolidated investment management funds $ 245 $ 463 Liabilities of consolidated investment management funds: Other liabilities 1 2 Total liabilities of consolidated investment management funds $ 1 $ 2

Commitments and contingent li_2

Commitments and contingent liabilities (Tables)	12 Months Ended
Commitments and contingent liabilities (Tables)	Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Summary of Off-Balance Sheet Credit Risks, Net of Participations	The following table presents a summary of our off-balance sheet credit risks. Off-balance sheet credit risks Dec. 31, (in millions) 2019 2018 Lending commitments $ 49,119 $ 50,631 Standby letters of credit (“SBLC”) (a) 2,298 2,817 Commercial letters of credit 74 165 Securities lending indemnifications (b)(c) 408,378 401,504 (a) Net of participations totaling $146 million at Dec. 31, 2019 and $163 million at Dec. 31, 2018 . (b) Excludes the indemnification for securities for which BNY Mellon acts as an agent on behalf of CIBC Mellon clients, which totaled $57 billion at Dec. 31, 2019 and $56 billion at Dec. 31, 2018 . (c) Includes cash collateral, invested in indemnified repurchase agreements, held by us as securities lending agent of $37 billion at Dec. 31, 2019 and $35 billion at Dec. 31, 2018 .
Standby Letters of Credits by Investment Grade	The table below shows SBLCs by investment grade: Standby letters of credit Dec. 31, 2019 2018 Investment grade 90 % 89 % Non-investment grade 10 % 11 %
Summary of Credit Exposure in the Financial Institutions and Commercial Portfolios	The tables below present our credit exposure in the financial institutions and commercial portfolios. Financial institutions portfolio exposure (in billions) Dec. 31, 2019 Loans Unfunded commitments Total exposure Securities industry $ 2.9 $ 23.4 $ 26.3 Banks 7.4 1.1 8.5 Asset managers 1.3 6.4 7.7 Insurance — 2.7 2.7 Government 0.1 0.3 0.4 Other 0.8 0.5 1.3 Total $ 12.5 $ 34.4 $ 46.9 Commercial portfolio exposure (in billions) Dec. 31, 2019 Loans Unfunded commitments Total exposure Manufacturing $ 0.9 $ 4.2 $ 5.1 Services and other 0.6 3.7 4.3 Energy and utilities 0.3 3.7 4.0 Media and telecom — 1.0 1.0 Total $ 1.8 $ 12.6 $ 14.4

Derivative instruments (Tables)

Derivative instruments (Tables)	12 Months Ended
Derivative instruments (Tables)	Dec. 31, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Gains (Losses) Related to Hedging	The following table presents the pre-tax gains (losses) related to our fair value and cash flow hedging activities recognized in the consolidated income statement. Income statement impact of fair value and cash flow hedges Year ended Dec. 31, (in millions) Location of gains (losses) 2019 2018 2017 Interest rate fair value hedges of available-for-sale securities Derivative Interest revenue $ (795 ) $ 284 $ 82 Hedged item Interest revenue 788 (273 ) (97 ) Interest rate fair value hedges of long-term debt Derivative Interest expense 486 (328 ) (197 ) Hedged item Interest expense (483 ) 330 190 Foreign exchange fair value hedges of available-for-sale securities Derivative (a) Other revenue 9 (2 ) — Hedged item Other revenue (8 ) 2 — Cash flow hedge of interest rate risk Gain reclassified from OCI into income Interest expense 7 — — Cash flow hedges of forecasted FX exposures Gain reclassified from OCI into income Trading revenue — — 2 Gain reclassified from OCI into income Other revenue — 2 8 Gain (loss) reclassified from OCI into income Staff expense 3 (4 ) 10 Gain (loss) recognized in the consolidated income statement due to fair value and cash flow hedging relationships $ 7 $ 11 $ (2 ) (a) Includes a gain of $2 million in 2019 and a (loss) of $(1) million in 2018 associated with the amortization of the excluded component. At Dec. 31, 2019 and Dec. 31, 2018 , the remaining accumulated OCI balance associated with the excluded component was de minimis.
Impacts of Hedging Derivatives in Net Investment Hedging Relationships	The following table presents the impact of hedging derivatives used in net investment hedging relationships. Impact of derivative instruments used in net investment hedging relationships (in millions) Gain or (loss) recognized in accumulated OCI on derivatives Year ended Dec. 31, Gain or (loss) reclassified from accumulated OCI into income Year ended Dec. 31, Derivatives in net investment hedging relationships Location of gain or (loss) reclassified from accumulated OCI into income 2019 2018 2017 2019 2018 2017 FX contracts $ (19 ) $ 535 $ (625 ) Net interest revenue $ — $ — $ —
Summary of Hedged Items in Fair Value Hedging Relationships	The following table presents information on the hedged items in fair value hedging relationships. Hedged items in fair value hedging relationships Carrying amount of hedged asset or liability Hedge accounting basis adjustment increase (decrease) (a) Dec. 31, Dec. 31, (in millions) 2019 2018 2019 2018 Available-for-sale securities (b)(c) $ 13,792 $ 19,201 $ 687 $ (125 ) Long-term debt $ 13,945 $ 16,147 $ 116 $ (453 ) (a) Includes $53 million and $- million of basis adjustment increases on discontinued hedges associated with available-for-sale securities at Dec. 31, 2019 and Dec. 31, 2018 , respectively, and $200 million and $284 million of basis adjustment decreases on discontinued hedges associated with long-term debt at Dec. 31, 2019 and Dec. 31, 2018 , respectively. (b) Excludes hedged items where only foreign currency risk is the designated hedged risk, as the basis adjustments related to foreign currency hedges will not reverse through the consolidated income statement in future periods. The carrying amount excluded for available-for-sale securities was $142 million at Dec. 31, 2019 and $148 million at Dec. 31, 2018 . (c) Carrying amount represents the amortized cost.
Impact of Derivative Instruments on the Balance Sheet	The following table summarizes the notional amount and carrying values of our total derivative portfolio at Dec. 31, 2019 and Dec. 31, 2018 . Impact of derivative instruments on the balance sheet Notional value Asset derivatives fair value Liability derivatives fair value Dec. 31, Dec. 31, Dec. 31, (in millions) 2019 2018 2019 2018 2019 2018 Derivatives designated as hedging instruments: (a)(b) Interest rate contracts $ 28,365 $ 35,890 $ — $ 23 $ 350 $ 74 Foreign exchange contracts 8,390 6,330 21 266 257 14 Total derivatives designated as hedging instruments $ 21 $ 289 $ 607 $ 88 Derivatives not designated as hedging instruments: (b)(c) Interest rate contracts $ 306,790 $ 248,534 $ 3,690 $ 3,590 $ 3,250 $ 3,116 Foreign exchange contracts 848,961 831,730 5,331 4,807 5,340 5,215 Equity contracts 3,189 927 19 68 5 118 Credit contracts 165 150 — — 4 1 Total derivatives not designated as hedging instruments $ 9,040 $ 8,465 $ 8,599 $ 8,450 Total derivatives fair value (d) $ 9,061 $ 8,754 $ 9,206 $ 8,538 Effect of master netting agreements (e) (5,819 ) (5,939 ) (5,415 ) (6,170 ) Fair value after effect of master netting agreements $ 3,242 $ 2,815 $ 3,791 $ 2,368 (a) The fair value of asset derivatives and liability derivatives designated as hedging instruments is recorded as other assets and other liabilities, respectively, on the consolidated balance sheet. (b) For derivative transactions settled at clearing organizations, cash collateral exchanged is deemed a settlement of the derivative each day. The settlement reduces the gross fair value of derivative assets and liabilities and a corresponding decrease in the effect of master netting agreements, with no impact to the consolidated balance sheet. (c) The fair value of asset derivatives and liability derivatives not designated as hedging instruments is recorded as trading assets and trading liabilities, respectively, on the consolidated balance sheet. (d) Fair values are on a gross basis, before consideration of master netting agreements, as required by ASC 815, Derivatives and Hedging. (e) Effect of master netting agreements includes cash collateral received and paid of $1,022 million and $618 million , respectively, at Dec. 31, 2019 , and $809 million and $1,040 million , respectively, at Dec. 31, 2018 .
Revenue from Foreign Exchange and Other Trading	The following table presents our foreign exchange and other trading revenue. Foreign exchange and other trading revenue Year ended Dec. 31, (in millions) 2019 2018 2017 Foreign exchange $ 577 $ 663 $ 638 Other trading revenue 77 69 30 Total foreign exchange and other trading revenue $ 654 $ 732 $ 668
Fair Value of Derivative Contracts Falling under Early Termination Provisions that were in Net Liability Position	The following table shows the fair value of contracts falling under early termination provisions that were in net liability positions for three key ratings triggers. Potential close-out exposures (fair value) (a) Dec. 31, (in millions) 2019 2018 If The Bank of New York Mellon’s rating changed to: (b) A3/A- $ 56 $ 15 Baa2/BBB $ 608 $ 116 Ba1/BB+ $ 2,084 $ 1,041 (a) The amounts represent potential total close-out values if The Bank of New York Mellon’s long-term issuer rating were to immediately drop to the indicated levels, and do not reflect collateral posted. (b) Represents rating by Moody’s/S&P. The following table shows the aggregate fair value of OTC derivative contracts in net liability positions that contained credit-risk contingent features and the value of collateral that has been posted. Dec. 31, (in millions) 2019 2018 Aggregate fair value of OTC derivatives in net liability positions (a) $ 3,442 $ 2,877 Collateral posted $ 3,671 $ 2,801 (a) Before consideration of cash collateral.
Offsetting Assets	The following tables present derivative and financial instruments and their related offsets. There were no derivative instruments or financial instruments subject to a legally enforceable netting agreement for which we are not currently netting. Offsetting of derivative assets and financial assets at Dec. 31, 2019 Gross assets recognized Gross amounts offset in the balance sheet Net assets recognized in the balance sheet Gross amounts not offset in the balance sheet (in millions) (a) Financial instruments Cash collateral received Net amount Derivatives subject to netting arrangements: Interest rate contracts $ 2,394 $ 1,792 $ 602 $ 207 $ — $ 395 Foreign exchange contracts 4,861 4,021 840 44 — 796 Equity and other contracts 9 6 3 — — 3 Total derivatives subject to netting arrangements 7,264 5,819 1,445 251 — 1,194 Total derivatives not subject to netting arrangements 1,797 — 1,797 — — 1,797 Total derivatives 9,061 5,819 3,242 251 — 2,991 Reverse repurchase agreements 112,355 93,794 (b) 18,561 18,554 — 7 Securities borrowing 11,621 — 11,621 11,278 — 343 Total $ 133,037 $ 99,613 $ 33,424 $ 30,083 $ — $ 3,341 (a) Includes the effect of netting agreements and net cash collateral received. The offset related to the OTC derivatives was allocated to the various types of derivatives based on the net positions. (b) Offsetting of reverse repurchase agreements relates to our involvement in the FICC, where we settle government securities transactions on a net basis for payment and delivery through the Fedwire system. Offsetting of derivative assets and financial assets at Dec. 31, 2018 Gross assets recognized Gross amounts offset in the balance sheet Net assets recognized in the balance sheet Gross amounts not offset in the balance sheet (in millions) (a) Financial instruments Cash collateral received Net amount Derivatives subject to netting arrangements: Interest rate contracts $ 2,654 $ 2,202 $ 452 $ 133 $ — $ 319 Foreign exchange contracts 4,409 3,724 685 70 — 615 Equity and other contracts 38 13 25 — — 25 Total derivatives subject to netting arrangements 7,101 5,939 1,162 203 — 959 Total derivatives not subject to netting arrangements 1,653 — 1,653 — — 1,653 Total derivatives 8,754 5,939 2,815 203 — 2,612 Reverse repurchase agreements 112,245 76,040 (b) 36,205 36,205 — — Securities borrowing 10,588 — 10,588 10,286 — 302 Total $ 131,587 $ 81,979 $ 49,608 $ 46,694 $ — $ 2,914 (a) Includes the effect of netting agreements and net cash collateral received. The offset related to the OTC derivatives was allocated to the various types of derivatives based on the net positions. (b) Offsetting of reverse repurchase agreements relates to our involvement in the FICC, where we settle government securities transactions on a net basis for payment and delivery through the Fedwire system.
Offsetting Liabilities	Offsetting of derivative liabilities and financial liabilities at Dec. 31, 2019 Net liabilities recognized in the balance sheet Gross liabilities recognized Gross amounts offset in the balance sheet Gross amounts not offset in the balance sheet (in millions) (a) Financial instruments Cash collateral pledged Net amount Derivatives subject to netting arrangements: Interest rate contracts $ 3,550 $ 1,986 $ 1,564 $ 1,539 $ — $ 25 Foreign exchange contracts 4,873 3,428 1,445 74 — 1,371 Equity and other contracts 5 1 4 2 — 2 Total derivatives subject to netting arrangements 8,428 5,415 3,013 1,615 — 1,398 Total derivatives not subject to netting arrangements 778 — 778 — — 778 Total derivatives 9,206 5,415 3,791 1,615 — 2,176 Repurchase agreements 104,451 93,794 (b) 10,657 10,657 — — Securities lending 718 — 718 694 — 24 Total $ 114,375 $ 99,209 $ 15,166 $ 12,966 $ — $ 2,200 (a) Includes the effect of netting agreements and net cash collateral paid. The offset related to the OTC derivatives was allocated to the various types of derivatives based on the net positions. (b) Offsetting of repurchase agreements relates to our involvement in the FICC, where we settle government securities transactions on a net basis for payment and delivery through the Fedwire system. Offsetting of derivative liabilities and financial liabilities at Dec. 31, 2018 Net liabilities recognized in the balance sheet Gross liabilities recognized Gross amounts offset in the balance sheet Gross amounts not offset in the balance sheet (in millions) (a) Financial instruments Cash collateral pledged Net amount Derivatives subject to netting arrangements: Interest rate contracts $ 3,144 $ 2,508 $ 636 $ 547 $ — $ 89 Foreign exchange contracts 4,747 3,626 1,121 187 — 934 Equity and other contracts 75 36 39 37 — 2 Total derivatives subject to netting arrangements 7,966 6,170 1,796 771 — 1,025 Total derivatives not subject to netting arrangements 572 — 572 — — 572 Total derivatives 8,538 6,170 2,368 771 — 1,597 Repurchase agreements 84,665 76,040 (b) 8,625 8,625 — — Securities lending 997 — 997 937 — 60 Total $ 94,200 $ 82,210 $ 11,990 $ 10,333 $ — $ 1,657 (a) Includes the effect of netting agreements and net cash collateral paid. The offset related to the OTC derivatives was allocated to the various types of derivatives based on the net positions. (b) Offsetting of repurchase agreements relates to our involvement in the FICC, where we settle government securities transactions on a net basis for payment and delivery through the Fedwire system.
Transfer of Certain Financial Assets Accounted for as Secured Borrowings	The following table presents the contract value of repurchase agreements and securities lending transactions accounted for as secured borrowings by the type of collateral provided to counterparties. Repurchase agreements and securities lending transactions accounted for as secured borrowings Dec. 31, 2019 Dec. 31, 2018 Remaining contractual maturity Total Remaining contractual maturity Total (in millions) Overnight and continuous Up to 30 days 30 days or more Overnight and continuous Up to 30 days 30 days or more Repurchase agreements: U.S. Treasury $ 94,788 $ 10 $ — $ 94,798 $ 76,822 $ — $ — $ 76,822 U.S. government agencies 594 16 — 610 759 — — 759 Agency RMBS 4,234 774 — 5,008 3,184 — 4 3,188 Corporate bonds 266 236 1,617 2,119 416 — 1,413 1,829 Other debt securities 40 188 1,079 1,307 271 — 1,106 1,377 Equity securities 31 99 479 609 163 — 527 690 Total $ 99,953 $ 1,323 $ 3,175 $ 104,451 $ 81,615 $ — $ 3,050 $ 84,665 Securities lending: U.S. government agencies $ 19 $ — $ — $ 19 $ 7 $ — $ — $ 7 Other debt securities 201 — — 201 294 — — 294 Equity securities 498 — — 498 696 — — 696 Total $ 718 $ — $ — $ 718 $ 997 $ — $ — $ 997 Total borrowings $ 100,671 $ 1,323 $ 3,175 $ 105,169 $ 82,612 $ — $ 3,050 $ 85,662

Lines of business (Tables)

Lines of business (Tables)	12 Months Ended
Lines of business (Tables)	Dec. 31, 2019
Segment Reporting [Abstract]
Contribution of Segments to Overall Profitability	The following consolidating schedules present the contribution of our businesses to our overall profitability. For the year ended Dec. 31, 2019 Investment Investment Other Consolidated (dollars in millions) Total fee and other revenue $ 8,894 $ 3,466 (a) $ 888 $ 13,248 (a) Net interest revenue (expense) 3,093 255 (160 ) 3,188 Total revenue 11,987 3,721 (a) 728 16,436 (a) Provision for credit losses (16 ) (1 ) (8 ) (25 ) Noninterest expense 8,049 2,643 208 10,900 Income before income taxes $ 3,954 $ 1,079 (a) $ 528 $ 5,561 (a) Pre-tax operating margin (b) 33 % 29 % N/M 34 % Average assets $ 267,135 $ 30,697 $ 48,123 $ 345,955 (a) Total fee and other revenue includes net income from consolidated investment management funds of $30 million , representing $56 million of income and income attributable to noncontrolling interests of $26 million . Total revenue and income before income taxes are net of noncontrolling interests of $26 million . (b) Income before income taxes divided by total revenue. For the year ended Dec. 31, 2018 Investment Investment Other Consolidated (dollars in millions) Total fee and other revenue $ 8,926 $ 3,781 (a) $ 85 $ 12,792 (a) Net interest revenue (expense) 3,372 303 (64 ) 3,611 Total revenue 12,298 4,084 (a) 21 16,403 (a) Provision for credit losses 1 3 (15 ) (11 ) Noninterest expense 8,058 2,818 334 11,210 (b) Income (loss) before income taxes $ 4,239 $ 1,263 (a) $ (298 ) $ 5,204 (a)(b) Pre-tax operating margin (c) 34 % 31 % N/M 32 % Average assets $ 262,747 $ 31,446 $ 49,581 $ 343,774 (a) Total fee and other revenue include a net loss from consolidated investment management funds of $1 million , representing $13 million of losses and a loss attributable to noncontrolling interests of $12 million . Total revenue and income before income taxes are net of a loss attributable to noncontrolling interests of $12 million . (b) Noninterest expense and income before income taxes include a loss attributable to noncontrolling interests of $1 million related to other consolidated subsidiaries. (c) Income before income taxes divided by total revenue. For the year ended Dec. 31, 2017 Investment Investment Other Consolidated (dollars in millions) Total fee and other revenue $ 8,527 $ 3,668 (a) $ 7 $ 12,202 (a) Net interest revenue (expense) 3,058 329 (79 ) 3,308 Total revenue (loss) 11,585 3,997 (a) (72 ) 15,510 (a) Provision for credit losses (7 ) 2 (19 ) (24 ) Noninterest expense 7,747 2,854 347 10,948 (b) Income (loss) before income taxes $ 3,845 $ 1,141 (a) $ (400 ) $ 4,586 (a)(b) Pre-tax operating margin (c) 33 % 29 % N/M 30 % Average assets $ 254,646 $ 31,450 $ 57,752 $ 343,848 (a) Total fee and other revenue includes net income from consolidated investment management funds of $37 million , representing $70 million of income and income attributable to noncontrolling interests of $33 million . Total revenue and income before income taxes are net of noncontrolling interests of $33 million . (b) Noninterest expense and income before income taxes include a loss attributable to noncontrolling interest of $9 million related to other consolidated subsidiaries. (c) Income before taxes divided by total revenue.

International operations (Table

International operations (Tables)	12 Months Ended
International operations (Tables)	Dec. 31, 2019
Segments, Geographical Areas [Abstract]
Foreign Revenue, Income before Income Taxes, Net Income and Assets from Foreign Operations	Total assets, total revenue, income before income taxes and net income of our international operations are shown in the table below. International operations International Total International Total Domestic (in millions) Europe, the Middle East and Africa Asia-Pacific region Other Total 2019 Total assets at period end (a) $ 74,504 (b) $ 36,347 $ 2,636 $ 113,487 $ 268,021 $ 381,508 Total revenue 3,833 (b) 1,161 737 5,731 10,731 16,462 Income before income taxes 1,447 548 506 2,501 3,086 5,587 Net income 1,116 423 390 1,929 2,538 4,467 2018 Total assets at period end (a) $ 74,982 (b) $ 23,199 $ 1,483 $ 99,664 $ 263,209 $ 362,873 Total revenue 4,252 (b) 1,103 684 6,039 10,353 16,392 Income before income taxes 1,694 564 455 2,713 2,479 5,192 Net income 1,345 448 361 2,154 2,100 4,254 2017 Total assets at period end (a) $ 88,490 (b) $ 20,676 $ 1,737 $ 110,903 $ 260,855 $ 371,758 Total revenue 3,982 (b) 997 610 5,589 9,954 15,543 Income before income taxes 1,497 538 296 2,331 2,279 4,610 Net income 1,186 426 234 1,846 2,268 4,114 (a) Total assets include long-lived assets, which are not considered by management to be significant in relation to total assets. Long-lived assets are primarily located in the U.S. (b) Includes assets of approximately $30.8 billion , $30.6 billion and $32.9 billion and revenue of approximately $2.6 billion , $2.6 billion and $2.4 billion in 2019, 2018 and 2017, respectively, of international operations domiciled in the UK, which is 8% , 8% and 9% of total assets and 16% , 16% and 15% of total revenue, respectively.

Supplemental information to t_2

Supplemental information to the Consolidated Statement of Cash Flows (Tables)	12 Months Ended
	Dec. 31, 2019
Supplemental Cash Flow Information [Abstract]
Noncash Investing and Financing Transactions that are Not Reflected in Consolidated Statement of Cash Flows	Non-cash investing and financing transactions that, appropriately, are not reflected in the consolidated statement of cash flows are listed below. Non-cash investing and financing transactions Year ended Dec. 31, (in millions) 2019 2018 2017 Transfers from loans to other assets for other real estate owned $ 2 $ 2 $ 3 Change in assets of consolidated investment management funds 16 268 500 Change in liabilities of consolidated investment management funds 1 — 313 Change in nonredeemable noncontrolling interests of consolidated investment management funds 1 215 302 Securities purchased not settled 497 227 112 Securities sold not settled — 187 587 Securities matured not settled — — 70 Available-for-sale securities transferred to trading assets — 963 — Held-to-maturity securities transferred to available-for-sale — 1,087 74 Premises and equipment/capitalized software funded by finance lease obligations 14 26 347 Premises and equipment/operating lease obligations 1,754 (a) — — Investment redemptions not settled 20 — — (a) Includes $1,244 million related to the adoption of ASU 2016-02, Leases, and $510 million related to new or modified leases.

Summary of significant accoun_4

Summary of significant accounting and reporting policies - Narrative (Details)	12 Months Ended
	Dec. 31, 2019USD ($)business
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of principal businesses (business) \| business	2
Minimum loan amount required to measure impairment allowance	$ 1,000,000
Minimum amount of majority of loans primarily to institutional customers	$ 1,000,000
Maximum percentage of excess actuarial gain or loss before excess is recognized (percentage)	10.00%
Period of time to amortize unrecognized gains or losses for pension plans with inactive participants (years)	15 years
Period of time that difference of expected return on plan assets vs. actual performance of plan assets included as adjustment in market related value (years)	5 years
Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Premises and equipment, useful life (in years)	2 years
Maximum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Premises and equipment, useful life (in years)	40 years
Commercial Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Threshold period past due for nonaccrual status	90 days
First Lien Residential Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Threshold period past due subject to impairment test	90 days
Second Lien Residential Mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Threshold period past due subject to further impairment testing	90 days

Summary of significant accoun_5

Summary of significant accounting and reporting policies - Equity Method Investments (Details) $ in Millions	Dec. 31, 2019USD ($)
CIBC Mellon
Schedule of Equity Method Investments [Line Items]
Percentage ownership	50.00%
Book value	$ 626
Siguler Guff
Schedule of Equity Method Investments [Line Items]
Percentage ownership	20.00%
Book value	$ 233

Accounting changes and new ac_2

Accounting changes and new accounting guidance - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2019	Jan. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease, right-of-use asset	$ 1,530
Operating lease, liability	$ 1,772
ASU 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease, right-of-use asset		$ 1,300
Operating lease, liability		1,500
Retained earnings \| ASU 2018-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adjustment for the cumulative effect of applying the ASU		90
Accumulated other comprehensive (loss), net of tax \| ASU 2018-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adjustment for the cumulative effect of applying the ASU		$ (90)

Acquisitions and dispositions (

Acquisitions and dispositions (Details) - USD ($) $ in Millions	Nov. 08, 2019	Jun. 29, 2018	Jan. 02, 2018	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Contingent payments				$ 6
Potential obligation to pay additional consideration, lower range				5
Potential obligation to pay additional consideration, upper range				$ 13
Contingent consideration payment period				2 years
Goodwill written off					$ 65
Promontory Interfinancial Network
Business Acquisition [Line Items]
Gain on disposal	$ 622
CenterSquare
Business Acquisition [Line Items]
Assets under management divested			$ 10,000
Goodwill written off			$ 52
Amherst Capital Management LLC
Business Acquisition [Line Items]
Goodwill written off		$ 13

Securities - Amortized Cost, Gr

Securities - Amortized Cost, Gross Unrealized Gains and Losses and Fair Value (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Available-for-sale:
Amortized cost	$ 87,435	$ 86,167
Gross unrealized, Gain	1,353	595
Gross unrealized, Loss	238	953
Available-for-sale	88,550	85,809
Held-to-maturity:
Amortized cost	34,483	33,982
Gross unrealized, Gains	377	67
Gross unrealized, Losses	55	747
Securities held-to-maturity	34,805	33,302
Amortized cost, Total	121,918	120,149
Gross unrealized, Gain, Total	1,730	662
Gross unrealized, Losses, Total	293	1,700
Fair value, Total	123,355	119,111
AOCI, transfers from AFS to HTM Securities, gross unrealized gains	32	39
AOCI, transfers from AFS to HTM Securities, gross unrealized losses	65	87
Agency RMBS
Available-for-sale:
Amortized cost	27,022	25,594
Gross unrealized, Gain	164	83
Gross unrealized, Loss	143	369
Available-for-sale	27,043	25,308
Held-to-maturity:
Amortized cost	27,357	25,507
Gross unrealized, Gains	292	32
Gross unrealized, Losses	46	632
Securities held-to-maturity	27,603	24,907
U.S. Treasury
Available-for-sale:
Amortized cost	14,979	20,190
Gross unrealized, Gain	472	96
Gross unrealized, Loss	20	210
Available-for-sale	15,431	20,076
Held-to-maturity:
Amortized cost	3,818	4,727
Gross unrealized, Gains	28	3
Gross unrealized, Losses	3	77
Securities held-to-maturity	3,843	4,653
Sovereign debt/sovereign guaranteed
Available-for-sale:
Amortized cost	12,548	10,663
Gross unrealized, Gain	109	108
Gross unrealized, Loss	11	21
Available-for-sale	12,646	10,750
Held-to-maturity:
Amortized cost	756	833
Gross unrealized, Gains	31	26
Gross unrealized, Losses	0	0
Securities held-to-maturity	787	859
Agency commercial mortgage-backed securities (“MBS”)
Available-for-sale:
Amortized cost	9,231	9,836
Gross unrealized, Gain	203	16
Gross unrealized, Loss	17	161
Available-for-sale	9,417	9,691
Held-to-maturity:
Amortized cost	1,326	1,195
Gross unrealized, Gains	21	0
Gross unrealized, Losses	3	26
Securities held-to-maturity	1,344	1,169
Foreign covered bonds
Available-for-sale:
Amortized cost	4,189	2,890
Gross unrealized, Gain	15	7
Gross unrealized, Loss	7	19
Available-for-sale	4,197	2,878
Held-to-maturity:
Amortized cost	79	80
Gross unrealized, Gains	0	1
Gross unrealized, Losses	0	0
Securities held-to-maturity	79	81
CLOs
Available-for-sale:
Amortized cost	4,078	3,410
Gross unrealized, Gain	1	0
Gross unrealized, Loss	16	46
Available-for-sale	4,063	3,364
Supranational
Available-for-sale:
Amortized cost	3,697	2,985
Gross unrealized, Gain	18	7
Gross unrealized, Loss	6	8
Available-for-sale	3,709	2,984
Held-to-maturity:
Amortized cost	27	26
Gross unrealized, Gains	0	1
Gross unrealized, Losses	0	0
Securities held-to-maturity	27	27
Foreign government agencies
Available-for-sale:
Amortized cost	2,638	1,164
Gross unrealized, Gain	7	1
Gross unrealized, Loss	2	4
Available-for-sale	2,643	1,161
Non-agency commercial MBS
Available-for-sale:
Amortized cost	2,134	1,491
Gross unrealized, Gain	46	1
Gross unrealized, Loss	2	28
Available-for-sale	2,178	1,464
Other ABS
Available-for-sale:
Amortized cost	2,141	1,776
Gross unrealized, Gain	7	1
Gross unrealized, Loss	5	4
Available-for-sale	2,143	1,773
U.S. government agencies
Available-for-sale:
Amortized cost	1,890	1,676
Gross unrealized, Gain	61	5
Gross unrealized, Loss	2	24
Available-for-sale	1,949	1,657
Held-to-maturity:
Amortized cost	1,023	1,497
Gross unrealized, Gains	1	0
Gross unrealized, Losses	2	10
Securities held-to-maturity	1,022	1,487
Non-agency RMBS
Available-for-sale:
Amortized cost	1,038	1,095
Gross unrealized, Gain	202	241
Gross unrealized, Loss	7	11
Available-for-sale	1,233	1,325
Held-to-maturity:
Amortized cost	80	100
Gross unrealized, Gains	4	4
Gross unrealized, Losses	1	2
Securities held-to-maturity	83	102
Non-agency RMBS \| Grantor Trust
Available-for-sale:
Available-for-sale	640	832
State and political subdivisions
Available-for-sale:
Amortized cost	1,017	2,251
Gross unrealized, Gain	27	18
Gross unrealized, Loss	0	22
Available-for-sale	1,044	2,247
Held-to-maturity:
Amortized cost	17	17
Gross unrealized, Gains	0	0
Gross unrealized, Losses	0	0
Securities held-to-maturity	17	17
Corporate bonds
Available-for-sale:
Amortized cost	832	1,074
Gross unrealized, Gain	21	6
Gross unrealized, Loss	0	26
Available-for-sale	853	1,054
Other debt securities
Available-for-sale:
Amortized cost	1	72
Gross unrealized, Gain	0	5
Gross unrealized, Loss	0	0
Available-for-sale	$ 1	$ 77

Securities - Net Securities Gai

Securities - Net Securities Gains (Losses) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Securities [Abstract]
Realized gross gains	$ 23	$ 8	$ 47
Realized gross losses	(39)	(55)	(40)
Recognized gross impairments	(2)	(1)	(4)
Total net securities (losses) gains	$ (18)	$ (48)	$ 3

Securities - Pre-Tax Net Securi

Securities - Pre-Tax Net Securities Gains (Losses) by Type (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Total net securities gains (losses)	$ (18)	$ (48)	$ 3
U.S. Treasury
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Total net securities gains (losses)	(13)	(4)	(16)
Agency RMBS
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Total net securities gains (losses)	1	(42)	(12)
Other
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Total net securities gains (losses)	$ (6)	$ (2)	$ 31

Securities - Narrative (Details

Securities - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
Securities - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2019
Securities [Abstract]
Held-to-maturity, securities transferred to available-for-sale, amortized cost	$ 1,117
Held-to-maturity, securities transferred to available-for-sale, fair value	1,070
AOCI, transfers from AFS to HTM Securities, gross unrealized losses	$ 87	$ 65

Securities - Fair Value of Inve

Securities - Fair Value of Investments with Continuous Unrealized Loss Position (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Available-for-sale:
Less than 12 months, Fair value	$ 23,012,000,000	$ 29,115,000,000
Less than 12 months, Unrealized losses	92,000,000	215,000,000
12 months or more, Fair value	10,774,000,000	23,608,000,000
12 months or more, Unrealized losses	146,000,000	738,000,000
Total, Fair value	33,786,000,000	52,723,000,000
Total, Unrealized losses	238,000,000	953,000,000
Held-to-maturity:
Less than 12 months, Fair value	6,007,000,000	5,258,000,000
Less than 12 months, Unrealized losses	25,000,000	66,000,000
12 months or more, Fair value	4,635,000,000	23,246,000,000
12 months or more, Unrealized losses	30,000,000	681,000,000
Total, Fair value	10,642,000,000	28,504,000,000
Total, Unrealized losses	55,000,000	747,000,000
Less than 12 months, Fair value, Total temporary impaired securities	29,019,000,000	34,373,000,000
Less than 12 months, Unrealized losses, Total temporary impaired securities	117,000,000	281,000,000
12 months or more, Fair Value, Total temporary impaired securities	15,409,000,000	46,854,000,000
12 months or more, Unrealized losses, Total temporary impaired securities	176,000,000	1,419,000,000
Total, Fair value, Total temporary impaired securities	44,428,000,000	81,227,000,000
Total, Unrealized losses, Total temporary impaired securities	293,000,000	1,700,000,000
AOCI, transfers from AFS to HTM Securities, gross unrealized losses, greater than 12 months	65,000,000	87,000,000
AOCI, transfers from AFS to HTM Securities, gross unrealized losses, less than 12 months	0	0
Agency RMBS
Available-for-sale:
Less than 12 months, Fair value	8,373,000,000	6,678,000,000
Less than 12 months, Unrealized losses	33,000,000	30,000,000
12 months or more, Fair value	5,912,000,000	9,250,000,000
12 months or more, Unrealized losses	110,000,000	339,000,000
Total, Fair value	14,285,000,000	15,928,000,000
Total, Unrealized losses	143,000,000	369,000,000
Held-to-maturity:
Less than 12 months, Fair value	4,714,000,000	4,602,000,000
Less than 12 months, Unrealized losses	17,000,000	56,000,000
12 months or more, Fair value	3,729,000,000	17,107,000,000
12 months or more, Unrealized losses	29,000,000	576,000,000
Total, Fair value	8,443,000,000	21,709,000,000
Total, Unrealized losses	46,000,000	632,000,000
U.S. Treasury
Available-for-sale:
Less than 12 months, Fair value	1,976,000,000	6,126,000,000
Less than 12 months, Unrealized losses	16,000,000	23,000,000
12 months or more, Fair value	766,000,000	6,880,000,000
12 months or more, Unrealized losses	4,000,000	187,000,000
Total, Fair value	2,742,000,000	13,006,000,000
Total, Unrealized losses	20,000,000	210,000,000
Held-to-maturity:
Less than 12 months, Fair value	406,000,000	157,000,000
Less than 12 months, Unrealized losses	3,000,000	2,000,000
12 months or more, Fair value	821,000,000	4,343,000,000
12 months or more, Unrealized losses	0	75,000,000
Total, Fair value	1,227,000,000	4,500,000,000
Total, Unrealized losses	3,000,000	77,000,000
Sovereign debt/sovereign guaranteed
Available-for-sale:
Less than 12 months, Fair value	4,045,000,000	2,185,000,000
Less than 12 months, Unrealized losses	10,000,000	8,000,000
12 months or more, Fair value	225,000,000	988,000,000
12 months or more, Unrealized losses	1,000,000	13,000,000
Total, Fair value	4,270,000,000	3,173,000,000
Total, Unrealized losses	11,000,000	21,000,000
Agency commercial mortgage-backed securities (“MBS”)
Available-for-sale:
Less than 12 months, Fair value	1,960,000,000	4,505,000,000
Less than 12 months, Unrealized losses	12,000,000	50,000,000
12 months or more, Fair value	775,000,000	3,082,000,000
12 months or more, Unrealized losses	5,000,000	111,000,000
Total, Fair value	2,735,000,000	7,587,000,000
Total, Unrealized losses	17,000,000	161,000,000
Held-to-maturity:
Less than 12 months, Fair value	375,000,000	477,000,000
Less than 12 months, Unrealized losses	3,000,000	7,000,000
12 months or more, Fair value	0	654,000,000
12 months or more, Unrealized losses	0	19,000,000
Total, Fair value	375,000,000	1,131,000,000
Total, Unrealized losses	3,000,000	26,000,000
Foreign covered bonds
Available-for-sale:
Less than 12 months, Fair value	1,009,000,000	1,058,000,000
Less than 12 months, Unrealized losses	4,000,000	7,000,000
12 months or more, Fair value	690,000,000	736,000,000
12 months or more, Unrealized losses	3,000,000	12,000,000
Total, Fair value	1,699,000,000	1,794,000,000
Total, Unrealized losses	7,000,000	19,000,000
CLOs
Available-for-sale:
Less than 12 months, Fair value	1,066,000,000	3,280,000,000
Less than 12 months, Unrealized losses	2,000,000	46,000,000
12 months or more, Fair value	1,499,000,000	2,000,000
12 months or more, Unrealized losses	14,000,000	0
Total, Fair value	2,565,000,000	3,282,000,000
Total, Unrealized losses	16,000,000	46,000,000
Supranational
Available-for-sale:
Less than 12 months, Fair value	1,336,000,000	974,000,000
Less than 12 months, Unrealized losses	6,000,000	2,000,000
12 months or more, Fair value	360,000,000	481,000,000
12 months or more, Unrealized losses	0	6,000,000
Total, Fair value	1,696,000,000	1,455,000,000
Total, Unrealized losses	6,000,000	8,000,000
Foreign government agencies
Available-for-sale:
Less than 12 months, Fair value	1,706,000,000	397,000,000
Less than 12 months, Unrealized losses	2,000,000	1,000,000
12 months or more, Fair value	47,000,000	256,000,000
12 months or more, Unrealized losses	0	3,000,000
Total, Fair value	1,753,000,000	653,000,000
Total, Unrealized losses	2,000,000	4,000,000
Non-agency commercial MBS
Available-for-sale:
Less than 12 months, Fair value	525,000,000	1,015,000,000
Less than 12 months, Unrealized losses	2,000,000	14,000,000
12 months or more, Fair value	45,000,000	362,000,000
12 months or more, Unrealized losses	0	14,000,000
Total, Fair value	570,000,000	1,377,000,000
Total, Unrealized losses	2,000,000	28,000,000
Other ABS
Available-for-sale:
Less than 12 months, Fair value	456,000,000	1,289,000,000
Less than 12 months, Unrealized losses	3,000,000	4,000,000
12 months or more, Fair value	305,000,000	23,000,000
12 months or more, Unrealized losses	2,000,000	0
Total, Fair value	761,000,000	1,312,000,000
Total, Unrealized losses	5,000,000	4,000,000
U.S. government agencies
Available-for-sale:
Less than 12 months, Fair value	377,000,000	513,000,000
Less than 12 months, Unrealized losses	2,000,000	4,000,000
12 months or more, Fair value	0	673,000,000
12 months or more, Unrealized losses	0	20,000,000
Total, Fair value	377,000,000	1,186,000,000
Total, Unrealized losses	2,000,000	24,000,000
Held-to-maturity:
Less than 12 months, Fair value	506,000,000	0
Less than 12 months, Unrealized losses	2,000,000	0
12 months or more, Fair value	45,000,000	1,111,000,000
12 months or more, Unrealized losses	0	10,000,000
Total, Fair value	551,000,000	1,111,000,000
Total, Unrealized losses	2,000,000	10,000,000
Non-agency RMBS
Available-for-sale:
Less than 12 months, Fair value	101,000,000	94,000,000
Less than 12 months, Unrealized losses	0	1,000,000
12 months or more, Fair value	113,000,000	157,000,000
12 months or more, Unrealized losses	7,000,000	10,000,000
Total, Fair value	214,000,000	251,000,000
Total, Unrealized losses	7,000,000	11,000,000
Held-to-maturity:
Less than 12 months, Fair value	6,000,000	22,000,000
Less than 12 months, Unrealized losses	0	1,000,000
12 months or more, Fair value	40,000,000	31,000,000
12 months or more, Unrealized losses	1,000,000	1,000,000
Total, Fair value	46,000,000	53,000,000
Total, Unrealized losses	1,000,000	2,000,000
Non-agency RMBS \| Grantor Trust
Available-for-sale:
Less than 12 months, Fair value	2,000,000	22,000,000
Less than 12 months, Unrealized losses	1,000,000	1,000,000
12 months or more, Fair value	2,000,000	3,000,000
12 months or more, Unrealized losses	1,000,000	1,000,000
State and political subdivisions
Available-for-sale:
Less than 12 months, Fair value	0	316,000,000
Less than 12 months, Unrealized losses	0	1,000,000
12 months or more, Fair value	16,000,000	668,000,000
12 months or more, Unrealized losses	0	21,000,000
Total, Fair value	16,000,000	984,000,000
Total, Unrealized losses	0	22,000,000
Corporate bonds
Available-for-sale:
Less than 12 months, Fair value	82,000,000	685,000,000
Less than 12 months, Unrealized losses	0	24,000,000
12 months or more, Fair value	21,000,000	50,000,000
12 months or more, Unrealized losses	0	2,000,000
Total, Fair value	103,000,000	735,000,000
Total, Unrealized losses	$ 0	$ 26,000,000

Securities - Maturity Distribut

Securities - Maturity Distribution and Yield of Investment Securities Portfolio (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Securities available-for-sale, Amount:
One year or less	$ 10,532
Over 1 through 5 years	21,970
Over 5 through 10 years	7,005
Over 10 years	2,966
Total	88,550	$ 85,809
Securities held-to-maturity, Amount:
One year or less	1,154
Over 1 through 5 years	4,238
Over 5 through 10 years	314
Over 10 years	14
Amortized cost	34,483	33,982
Mortgage-backed securities
Securities available-for-sale, Amount:
Without single maturity date	39,871
Securities held-to-maturity, Amount:
Mortgage-backed securities	28,763
Asset-backed securities
Securities available-for-sale, Amount:
Without single maturity date	6,206
U.S. Treasury
Securities available-for-sale, Amount:
One year or less	2,104
Over 1 through 5 years	6,876
Over 5 through 10 years	3,693
Over 10 years	2,758
Total	$ 15,431	20,076
Securities available-for-sale (Yield):
One year or less	2.51%
Over 1 through 5 years	1.70%
Over 5 through 10 years	2.21%
Over 10 years	3.11%
Total	2.18%
Securities held-to-maturity, Amount:
One year or less	$ 881
Over 1 through 5 years	2,937
Over 5 through 10 years	0
Over 10 years	0
Amortized cost	$ 3,818	4,727
Securities held-to-maturity (Yield):
One year or less	1.44%
Over 1 through 5 years	1.98%
Over 5 through 10 years	0.00%
Over 10 years	0.00%
Total	1.86%
U.S. government agencies
Securities available-for-sale, Amount:
One year or less	$ 25
Over 1 through 5 years	411
Over 5 through 10 years	1,513
Over 10 years	0
Total	$ 1,949	1,657
Securities available-for-sale (Yield):
One year or less	2.73%
Over 1 through 5 years	2.07%
Over 5 through 10 years	2.70%
Over 10 years	0.00%
Total	2.56%
Securities held-to-maturity, Amount:
One year or less	$ 135
Over 1 through 5 years	688
Over 5 through 10 years	200
Over 10 years	0
Amortized cost	$ 1,023	1,497
Securities held-to-maturity (Yield):
One year or less	1.69%
Over 1 through 5 years	2.04%
Over 5 through 10 years	2.58%
Over 10 years	0.00%
Total	2.10%
State and political subdivisions
Securities available-for-sale, Amount:
One year or less	$ 162
Over 1 through 5 years	774
Over 5 through 10 years	94
Over 10 years	14
Total	$ 1,044	2,247
Securities available-for-sale (Yield):
One year or less	2.90%
Over 1 through 5 years	3.26%
Over 5 through 10 years	2.57%
Over 10 years	2.50%
Total	3.13%
Securities held-to-maturity, Amount:
One year or less	$ 0
Over 1 through 5 years	3
Over 5 through 10 years	0
Over 10 years	14
Amortized cost	$ 17	$ 17
Securities held-to-maturity (Yield):
One year or less	0.00%
Over 1 through 5 years	5.68%
Over 5 through 10 years	0.00%
Over 10 years	4.76%
Total	4.94%
Other bonds, notes and debentures
Securities available-for-sale, Amount:
One year or less	$ 8,241
Over 1 through 5 years	13,909
Over 5 through 10 years	1,705
Over 10 years	194
Total	$ 24,049
Securities available-for-sale (Yield):
One year or less	1.19%
Over 1 through 5 years	0.99%
Over 5 through 10 years	0.87%
Over 10 years	1.67%
Total	1.06%
Securities held-to-maturity, Amount:
One year or less	$ 138
Over 1 through 5 years	610
Over 5 through 10 years	114
Over 10 years	0
Amortized cost	$ 862
Securities held-to-maturity (Yield):
One year or less	0.78%
Over 1 through 5 years	0.77%
Over 5 through 10 years	0.22%
Over 10 years	0.00%
Total	0.70%
Mortgage/ asset-backed
Securities available-for-sale, Amount:
Total	$ 46,077
Securities available-for-sale (Yield):
Total	2.87%
Securities held-to-maturity, Amount:
Amortized cost	$ 28,763
Securities held-to-maturity (Yield):
Total	2.94%
Mortgage/ asset-backed \| Mortgage-backed securities
Securities available-for-sale, Amount:
Without single maturity date	$ 39,871
Securities available-for-sale (Yield):
Without single maturity date	2.87%
Securities held-to-maturity, Amount:
Mortgage-backed securities	$ 28,763
Securities held-to-maturity (Yield):
Without single maturity date	2.94%
Mortgage/ asset-backed \| Asset-backed securities
Securities available-for-sale, Amount:
Without single maturity date	$ 6,206
Securities available-for-sale (Yield):
Without single maturity date	2.90%

Securities - Debt Securities Cr

Securities - Debt Securities Credit Losses Roll Forward Recorded in Earnings (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Other than Temporary Impairment [Roll Forward]
Beginning balance	$ 78	$ 84
Add: Initial OTTI credit losses	0	0
Subsequent OTTI credit losses	1	1
Less: Realized losses for securities sold	7	7
Ending balance	$ 72	$ 78

Securities - Pledged assets (De

Securities - Pledged assets (Details) - USD ($) $ in Billions	Dec. 31, 2019	Dec. 31, 2018
Securities [Abstract]
Pledged assets	$ 118	$ 120
Pledged collateral for potential borrowings at the Federal Reserve Discount Window	80	96
Pledged asset, other not separately reported, potential borrowings at FHLB	6	7
Pledged securities	98	100
Pledged loans	13	15
Pledged trading assets	7	4
Pledged interest-bearing deposits	1	1
Financial instruments owned and pledged as collateral, amount eligible to be pledged by counterparty	29	13
Pledged assets permitted to be sold or repledged	153	151
Market value of securities received as collateral that have been sold or repledged	107	101
Cash segregated under federal or other regulations	2	2
Securities segregated under federal or other regulations	$ 1	$ 2

Loans and asset quality - Loan

Loans and asset quality - Loan Distribution and Industry Concentrations (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 54,953	$ 56,564
Unearned income on lease financings	313	358
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	1,800
Financial institutions
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	12,500
Wealth management loans and mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	16,190	15,965
Other residential mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	494	594
Overdrafts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	2,700	5,500
Margin loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	13,400	13,500
Domestic
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	42,548	45,044
Domestic \| Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	1,442	1,949
Domestic \| Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	5,575	4,787
Domestic \| Financial institutions
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	4,852	5,091
Domestic \| Lease financings
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	537	706
Domestic \| Wealth management loans and mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	16,050	15,843
Domestic \| Other residential mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	494	594
Domestic \| Overdrafts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	524	1,550	$ 963
Domestic \| Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	1,167	1,181	1,131
Domestic \| Margin loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	11,907	13,343	$ 15,689
Foreign
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	12,405	11,520
Foreign \| Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	347	183
Foreign \| Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	7	0
Foreign \| Financial institutions
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	7,626	6,492
Foreign \| Lease financings
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	576	551
Foreign \| Wealth management loans and mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	140	122
Foreign \| Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	2,230	4,031
Foreign \| Margin loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 1,479	$ 141

Loans and asset quality - Loans

Loans and asset quality - Loans Additional Information (Details)	12 Months Ended
	Dec. 31, 2019class_of_receivablesegment
Receivables [Abstract]
Number of portfolio segments (segment) \| segment	3
Number of classes of financing receivables (class of receivable) \| class_of_receivable	6

Loans and asset quality - Allow

Loans and asset quality - Allowance for Credit Losses Activity (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 252	$ 261	$ 281
Charge-offs	(14)	(1)	(1)
Recoveries	3	3	5
Net (charge-offs) recoveries	(11)	2	4
Provision	(25)	(11)	(24)
Ending balance	216	252	261
Allowance for:
Loan losses	122	146	159
Lending-related commitments	94	106	102
Individually evaluated for impairment:
Loan balance	15	4	6
Allowance for loan losses	0	0	1
Collectively evaluated for impairment:
Loan balance	54,938	56,560	61,534
Allowance for loan losses	122	146	158
Loans	54,953	56,564
Commercial
Collectively evaluated for impairment:
Loans	1,800
Financial institutions
Collectively evaluated for impairment:
Loans	12,500
Wealth management loans and mortgages
Collectively evaluated for impairment:
Loans	16,190	15,965
Other residential mortgages
Collectively evaluated for impairment:
Loans	494	594
Overdrafts
Collectively evaluated for impairment:
Loans	2,700	5,500
Margin loans
Collectively evaluated for impairment:
Loans	13,400	13,500
Domestic
Collectively evaluated for impairment:
Loans	42,548	45,044
Domestic \| Commercial
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	81	77	82
Charge-offs	(12)	0	0
Recoveries	0	0	0
Net (charge-offs) recoveries	(12)	0	0
Provision	(9)	4	(5)
Ending balance	60	81	77
Allowance for:
Loan losses	11	24	24
Lending-related commitments	49	57	53
Individually evaluated for impairment:
Loan balance	0	0	0
Allowance for loan losses	0	0	0
Collectively evaluated for impairment:
Loan balance	1,442	1,949	2,744
Allowance for loan losses	11	24	24
Loans	1,442	1,949
Domestic \| Commercial real estate
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	75	76	73
Charge-offs	0	0	0
Recoveries	0	0	0
Net (charge-offs) recoveries	0	0	0
Provision	1	(1)	3
Ending balance	76	75	76
Allowance for:
Loan losses	57	56	58
Lending-related commitments	19	19	18
Individually evaluated for impairment:
Loan balance	0	0	0
Allowance for loan losses	0	0	0
Collectively evaluated for impairment:
Loan balance	5,575	4,787	4,900
Allowance for loan losses	57	56	58
Loans	5,575	4,787
Domestic \| Financial institutions
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	22	23	26
Charge-offs	0	0	0
Recoveries	0	0	0
Net (charge-offs) recoveries	0	0	0
Provision	(2)	(1)	(3)
Ending balance	20	22	23
Allowance for:
Loan losses	5	7	7
Lending-related commitments	15	15	16
Individually evaluated for impairment:
Loan balance	0	0	1
Allowance for loan losses	0	0	0
Collectively evaluated for impairment:
Loan balance	4,852	5,091	5,567
Allowance for loan losses	5	7	7
Loans	4,852	5,091
Domestic \| Lease financings
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	5	8	13
Charge-offs	0	0	0
Recoveries	0	0	0
Net (charge-offs) recoveries	0	0	0
Provision	(2)	(3)	(5)
Ending balance	3	5	8
Allowance for:
Loan losses	3	5	8
Lending-related commitments	0	0	0
Individually evaluated for impairment:
Loan balance	0	0	0
Allowance for loan losses	0	0	0
Collectively evaluated for impairment:
Loan balance	537	706	772
Allowance for loan losses	3	5	8
Loans	537	706
Domestic \| Wealth management loans and mortgages
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	21	22	23
Charge-offs	(1)	0	0
Recoveries	0	0	0
Net (charge-offs) recoveries	(1)	0	0
Provision	0	(1)	(1)
Ending balance	20	21	22
Allowance for:
Loan losses	18	18	18
Lending-related commitments	2	3	4
Individually evaluated for impairment:
Loan balance	15	4	5
Allowance for loan losses	0	0	1
Collectively evaluated for impairment:
Loan balance	16,035	15,839	16,415
Allowance for loan losses	18	18	17
Loans	16,050	15,843
Domestic \| Other residential mortgages
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	16	20	28
Charge-offs	(1)	(1)	(1)
Recoveries	3	2	5
Net (charge-offs) recoveries	2	1	4
Provision	(5)	(5)	(12)
Ending balance	13	16	20
Allowance for:
Loan losses	13	16	20
Lending-related commitments	0	0	0
Individually evaluated for impairment:
Loan balance	0	0	0
Allowance for loan losses	0	0	0
Collectively evaluated for impairment:
Loan balance	494	594	708
Allowance for loan losses	13	16	20
Loans	494	594
Domestic \| All other
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	0	0	0
Charge-offs	0	0	0
Recoveries	0	0	0
Net (charge-offs) recoveries	0	0	0
Provision	0	0	0
Ending balance	0	0	0
Allowance for:
Loan losses	0	0	0
Lending-related commitments	0	0	0
Individually evaluated for impairment:
Loan balance	0	0	0
Allowance for loan losses	0	0	0
Collectively evaluated for impairment:
Loan balance	13,598	16,074	17,783
Allowance for loan losses	0	0	0
Domestic \| Overdrafts
Collectively evaluated for impairment:
Loans	524	1,550	963
Domestic \| Margin loans
Collectively evaluated for impairment:
Loans	11,907	13,343	15,689
Domestic \| Other
Collectively evaluated for impairment:
Loans	1,167	1,181	1,131
Foreign
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	32	35	36
Charge-offs	0	0	0
Recoveries	0	1	0
Net (charge-offs) recoveries	0	1	0
Provision	(8)	(4)	(1)
Ending balance	24	32	35
Allowance for:
Loan losses	15	20	24
Lending-related commitments	9	12	11
Individually evaluated for impairment:
Loan balance	0	0	0
Allowance for loan losses	0	0	0
Collectively evaluated for impairment:
Loan balance	12,405	11,520	12,645
Allowance for loan losses	15	20	$ 24
Loans	12,405	11,520
Foreign \| Commercial
Collectively evaluated for impairment:
Loans	347	183
Foreign \| Commercial real estate
Collectively evaluated for impairment:
Loans	7	0
Foreign \| Financial institutions
Collectively evaluated for impairment:
Loans	7,626	6,492
Foreign \| Lease financings
Collectively evaluated for impairment:
Loans	576	551
Foreign \| Wealth management loans and mortgages
Collectively evaluated for impairment:
Loans	140	122
Foreign \| Margin loans
Collectively evaluated for impairment:
Loans	1,479	141
Foreign \| Other
Collectively evaluated for impairment:
Loans	$ 2,230	$ 4,031

Loans and asset quality - Nonpe

Loans and asset quality - Nonperforming Assets (Details) - Domestic - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Impaired [Line Items]
Total nonperforming loans	$ 86	$ 76
Other assets owned	3	3
Total nonperforming assets	89	79
Other residential mortgages
Financing Receivable, Impaired [Line Items]
Total nonperforming loans	62	67
Wealth management loans and mortgages
Financing Receivable, Impaired [Line Items]
Total nonperforming loans	$ 24	$ 9

Loans and asset quality - Lost

Loans and asset quality - Lost Interest (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount by which interest income recognized on nonperforming loans exceeded reversals	$ 0	$ 0	$ 0
Amount by which interest income would have increased if nonperforming loans at year-end had been performing for the entire year	6	5	5
Foreign
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount by which interest income recognized on nonperforming loans exceeded reversals	0	0	0
Amount by which interest income would have increased if nonperforming loans at year-end had been performing for the entire year	$ 0	$ 0	$ 0

Loans and asset quality - Impai

Loans and asset quality - Impaired Loans (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Impaired [Line Items]
Impaired loans with an allowance, average recorded investment	$ 39	$ 1	$ 4
Total impaired loans, average recorded investment (less than)	50	5	7
Impaired loans with an allowance, recorded investment	0	0	0
Total impaired loans, interest income recognized	0	0	0
Total impaired loans, recorded investment	15	4
Total impaired loans, unpaid Principal balance	15	4
Impaired loans with an allowance, related allowance (less than)	0	0
Commercial
Financing Receivable, Impaired [Line Items]
Impaired loans with an allowance, average recorded investment	39	0	0
Impaired loans with an allowance, recorded investment	0	0	0
Financial institutions
Financing Receivable, Impaired [Line Items]
Impaired loans with an allowance, average recorded investment	0	0	1
Impaired loans with an allowance, recorded investment	0	0	0
Wealth management loans and mortgages
Financing Receivable, Impaired [Line Items]
Impaired loans with an allowance, average recorded investment	0	1	2
Impaired loans without an allowance, average recorded investmen	11	4	3
Impaired loans with an allowance, recorded investment	0	0	0
Impaired loans without an allowance, recorded investment	0	0	0
Impaired loans without an allowance, recorded investment	15	4
Impaired loans without an allowance, unpaid Principal balance	15	4
Lease financings
Financing Receivable, Impaired [Line Items]
Impaired loans with an allowance, average recorded investment	0	0	1
Impaired loans with an allowance, recorded investment	0	0	$ 0
Loans Individually Less Than One Million
Financing Receivable, Impaired [Line Items]
Impaired loans with an allowance, recorded investment	1	1
Impaired loans with an allowance, related allowance (less than)	1	1
Maximum \| Loans Individually Less Than One Million
Financing Receivable, Impaired [Line Items]
Impaired loans with an allowance, recorded investment	$ 1	$ 1

Loans and asset quality - Past

Loans and asset quality - Past Due Loans (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Past Due [Line Items]
Total past due loans	$ 87	$ 60
30 to 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total past due loans	37	38
60 to 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total past due loans	50	10
Equal to Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total past due loans	0	12
Domestic \| Financial institutions
Financing Receivable, Past Due [Line Items]
Total past due loans	31	6
Domestic \| Financial institutions \| 30 to 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total past due loans	1	3
Domestic \| Financial institutions \| 60 to 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total past due loans	30	3
Domestic \| Financial institutions \| Equal to Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total past due loans	0	0
Domestic \| Wealth management loans and mortgages
Financing Receivable, Past Due [Line Items]
Total past due loans	27	28
Domestic \| Wealth management loans and mortgages \| 30 to 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total past due loans	22	22
Domestic \| Wealth management loans and mortgages \| 60 to 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total past due loans	5	1
Domestic \| Wealth management loans and mortgages \| Equal to Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total past due loans	0	5
Domestic \| Commercial real estate
Financing Receivable, Past Due [Line Items]
Total past due loans	18	1
Domestic \| Commercial real estate \| 30 to 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total past due loans	6	1
Domestic \| Commercial real estate \| 60 to 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total past due loans	12	0
Domestic \| Commercial real estate \| Equal to Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total past due loans	0	0
Domestic \| Other residential mortgages
Financing Receivable, Past Due [Line Items]
Total past due loans	11	25
Domestic \| Other residential mortgages \| 30 to 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total past due loans	8	12
Domestic \| Other residential mortgages \| 60 to 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total past due loans	3	6
Domestic \| Other residential mortgages \| Equal to Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total past due loans	$ 0	$ 7

Loans and asset quality - Troub

Loans and asset quality - Troubled Debt Restructuring (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)contract	Dec. 31, 2018USD ($)contract
Other residential mortgages
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, modifications, number of contracts \| contract	12	17
Financing receivable, troubled debt restructuring, premodification \| $	$ 6	$ 4
Outstanding recorded investment post-modification \| $	$ 6	$ 4
Financing receivable, troubled debt restructuring, subsequent default, number of contracts \| contract	9
Financing receivable, troubled debt restructuring, subsequent default \| $	$ 4
Wealth management loans and mortgages
Financing Receivable, Troubled Debt Restructuring [Line Items]
Financing receivable, troubled debt restructuring, subsequent default, number of contracts \| contract	1

Loans and asset quality - Credi

Loans and asset quality - Credit Risk Profile by Grade (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	$ 54,953	$ 56,564
Wealth management loans and mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	16,190	15,965
Wealth management loans and mortgages \| Wealth management mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	8,796	8,958
Investment grade \| Wealth management loans and mortgages \| Wealth management loans:
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	7,254	6,901
Non-investment grade \| Wealth management loans and mortgages \| Wealth management loans:
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	140	106
Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	1,789	2,132
Commercial \| Investment grade
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	1,744	2,036
Commercial \| Non-investment grade
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	45	96
Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	5,582	4,787
Commercial real estate \| Investment grade
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	5,045	4,184
Commercial real estate \| Non-investment grade
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	537	603
Financial institutions
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	12,478	11,583
Financial institutions \| Investment grade
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	10,265	9,586
Financial institutions \| Non-investment grade
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	$ 2,213	$ 1,997

Loans and asset quality - Cre_2

Loans and asset quality - Credit Risk Indicators Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 54,953	$ 56,564
Wealth management loans and mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan to value ratio at origination (percent)	62.00%
Percentage of past due mortgages (less than)	1.00%
Loans	$ 16,190	15,965
Wealth management loans and mortgages \| California
Accounts, Notes, Loans and Financing Receivable [Line Items]
Geographic concentrations (percent)	23.00%
Wealth management loans and mortgages \| New York
Accounts, Notes, Loans and Financing Receivable [Line Items]
Geographic concentrations (percent)	17.00%
Wealth management loans and mortgages \| Massachusetts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Geographic concentrations (percent)	10.00%
Wealth management loans and mortgages \| Florida
Accounts, Notes, Loans and Financing Receivable [Line Items]
Geographic concentrations (percent)	8.00%
Wealth management loans and mortgages \| Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Geographic concentrations (percent)	42.00%
Other residential mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 494	594
Overdrafts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 2,700	5,500
Overdraft repayment period	2 days
Margin loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 13,400	13,500
Domestic
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	42,548	45,044
Domestic \| Wealth management loans and mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	16,050	15,843
Domestic \| Other residential mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	494	594
Purchased mortgages	$ 91
Percentage of purchased residential mortgages that were at least 60 days delinquent	10.00%
Domestic \| Overdrafts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 524	1,550	$ 963
Domestic \| Margin loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 11,907	$ 13,343	$ 15,689
Domestic \| Margin loans \| Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Required daily collateral margin (in excess of)	100.00%

Leasing - Narrative (Details)

Leasing - Narrative (Details)	12 Months Ended
Leasing - Narrative (Details)	Dec. 31, 2019
Minimum
Lessee, Lease, Description [Line Items]
Lease, remaining lease term (years)	1 year
Maximum
Lessee, Lease, Description [Line Items]
Lease, remaining lease term (years)	20 years

Leasing - Balance Sheet Informa

Leasing - Balance Sheet Information (Details) $ in Millions	Dec. 31, 2019USD ($)
Leases [Abstract]
Operating lease, right-of-use asset	$ 1,530
Finance lease, right-of-use asset	12
Right-of-use asset	1,542
Operating lease, liability	1,772
Finance lease, liability	2
Lease liability	$ 1,774
Operating lease, weighted average remaining lease term	11 years 3 months 18 days
Finance lease, weighted average remaining lease term	2 years 7 months 6 days
Operating lease, weighted average discount rate, percent	2.76%
Finance lease, weighted average discount rate, percent	2.88%

Leasing - Components of Lease E

Leasing - Components of Lease Expense (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)
Leases [Abstract]
Operating lease expense	$ 266
Variable lease expense	39
Sublease income	(33)
Finance lease expense:
Amortization of right-of-use assets	7
Interest on lease liabilities	0
Total finance lease expense	7
Total lease expense	$ 279

Leasing - Cash Flow Information

Leasing - Cash Flow Information Related to Leases (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)
Leases [Abstract]
Operating cash flows from finance leases	$ 0
Operating cash flows from operating leases	285
Financing cash flows from finance leases	$ 20

Leasing - Maturities of Operati

Leasing - Maturities of Operating and Finance Leases After Adopting 2016-02 (Details) $ in Millions	Dec. 31, 2019USD ($)
Operating leases
2020	$ 284
2021	224
2022	199
2023	166
2024	136
2025 and thereafter	1,057
Total lease payments	2,066
Less: Imputed interest	(294)
Total	1,772
Finance leases
2020	2
2021	0
2022	0
2023	0
2024	0
2025 and thereafter	0
Total lease payments	2
Less: Imputed interest	0
Total	$ 2

Leasing - Maturities of Opera_2

Leasing - Maturities of Operating Leases Prior to Adopting 2016-02 (Details) $ in Millions	Dec. 31, 2019USD ($)
Leases [Abstract]
2020	$ 244
2021	211
2022	172
2023	136
2024 and thereafter	432
Total	$ 1,195

Goodwill and intangible asset_2

Goodwill and intangible assets - Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Goodwill [Roll Forward]
Beginning balance	$ 17,350	$ 17,564
Dispositions		(65)
Foreign currency translation	36	(149)
Ending balance	17,386	17,350
Investment Services
Goodwill [Roll Forward]
Beginning balance	8,333	8,389
Dispositions		0
Foreign currency translation	(1)	(56)
Ending balance	8,332	8,333
Investment Management
Goodwill [Roll Forward]
Beginning balance	8,970	9,128
Dispositions		(65)
Foreign currency translation	37	(93)
Ending balance	9,007	8,970
Other
Goodwill [Roll Forward]
Beginning balance	47	47
Dispositions		0
Foreign currency translation	0	0
Ending balance	$ 47	$ 47

Goodwill and intangible asset_3

Goodwill and intangible assets - Intangible Assets by Business Segment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Intangible Assets [Roll Forward]
Beginning Balance	$ 3,220	$ 3,411
Amortization	(117)	(180)	$ (209)
Foreign currency translation	4	(11)
Ending Balance	3,107	3,220	3,411
Investment Services
Intangible Assets [Roll Forward]
Beginning Balance	758	888
Amortization	(80)	(129)
Foreign currency translation	0	(1)
Ending Balance	678	758	888
Investment Management
Intangible Assets [Roll Forward]
Beginning Balance	1,613	1,674
Amortization	(37)	(51)
Foreign currency translation	4	(10)
Ending Balance	1,580	1,613	1,674
Other
Intangible Assets [Roll Forward]
Beginning Balance	849	849
Amortization	0	0
Foreign currency translation	0	0
Ending Balance	$ 849	$ 849	$ 849

Goodwill and intangible asset_4

Goodwill and intangible assets - Intangible Assets by Type (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Intangible Assets by Major Class [Line Items]
Gross carrying amount	$ 4,881	$ 5,117
Accumulated amortization	(1,774)	(1,897)
Net carrying amount	3,107	3,220	$ 3,411
Finite-lived Intangible Assets
Intangible Assets by Major Class [Line Items]
Gross carrying amount	2,296	2,497
Accumulated amortization	(1,774)	(1,897)
Net carrying amount	$ 522	600
Finite-lived Intangible Assets \| Weighted Average
Intangible Assets by Major Class [Line Items]
Remaining weighted- average amortization period	10 years
Finite-lived Intangible Assets \| Customer contracts—Investment Services
Intangible Assets by Major Class [Line Items]
Gross carrying amount	$ 1,520	1,572
Accumulated amortization	(1,214)	(1,186)
Net carrying amount	$ 306	386
Finite-lived Intangible Assets \| Customer contracts—Investment Services \| Weighted Average
Intangible Assets by Major Class [Line Items]
Remaining weighted- average amortization period	10 years
Finite-lived Intangible Assets \| Customer relationships
Intangible Assets by Major Class [Line Items]
Gross carrying amount	$ 712	899
Accumulated amortization	(544)	(699)
Net carrying amount	$ 168	200
Finite-lived Intangible Assets \| Customer relationships \| Weighted Average
Intangible Assets by Major Class [Line Items]
Remaining weighted- average amortization period	11 years
Finite-lived Intangible Assets \| Other
Intangible Assets by Major Class [Line Items]
Gross carrying amount	$ 64	26
Accumulated amortization	(16)	(12)
Net carrying amount	$ 48	14
Finite-lived Intangible Assets \| Other \| Weighted Average
Intangible Assets by Major Class [Line Items]
Remaining weighted- average amortization period	14 years
Indefinite-lived Intangible Assets
Intangible Assets by Major Class [Line Items]
Gross carrying amount	$ 2,585	2,620
Net carrying amount	2,585	2,620
Indefinite-lived Intangible Assets \| Tradenames
Intangible Assets by Major Class [Line Items]
Gross carrying amount	1,293	1,332
Net carrying amount	1,293	1,332
Indefinite-lived Intangible Assets \| Customer relationships
Intangible Assets by Major Class [Line Items]
Gross carrying amount	1,292	1,288
Net carrying amount	$ 1,292	$ 1,288

Goodwill and intangible asset_5

Goodwill and intangible assets - Estimated Annual Amortization Expense (Details) $ in Millions	Dec. 31, 2019USD ($)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2020	$ 104
2021	81
2022	63
2023	52
2024	$ 45

Goodwill and intangible asset_6

Goodwill and intangible assets - Narrative (Details)	3 Months Ended	12 Months Ended
Goodwill and intangible assets - Narrative (Details)	Jun. 30, 2019USD ($)	Dec. 31, 2019segmentreporting_unit
Goodwill [Line Items]
Number of reportable segments (segment) \| segment		3
Number of reporting units (reporting unit)		7
Goodwill impairment \| $	$ 0
Investment Services
Goodwill [Line Items]
Number of reporting units (reporting unit)		4
Investment Management
Goodwill [Line Items]
Number of reporting units (reporting unit)		2
Other
Goodwill [Line Items]
Number of reporting units (reporting unit)		1

Deposits - Narrative (Details)

Deposits - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Deposits [Abstract]
Time Deposits, at or Above FDIC Insurance Limit	$ 44,100	$ 32,100
Time deposits mature in 2020	48,300
Time deposits mature in 2021	2
Time deposits mature in 2022	0
Time deposits mature in 2023	0
Time deposits mature in 2024	0
Time deposits mature in 2025 and thereafter	$ 1

Other assets - Components of Ot

Other assets - Components of Other Assets (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Other Assets [Abstract]
Corporate/bank-owned life insurance	$ 5,219	$ 4,937
Accounts receivable	3,802	3,692
Fails to deliver	1,671	2,274
Software	1,590	1,652
Prepaid pension assets	1,464	1,357
Renewable energy investments	1,144	1,264
Equity in a joint venture and other investments	1,102	1,064
Qualified affordable housing project investments	1,024	999
Prepaid expense	491	385
Federal Reserve Bank stock	466	484
Income taxes receivable	388	1,125
Seed capital	184	224
Fair value of hedging derivatives	21	289
Other	1,655	1,552
Total other assets	20,221	21,298
Federal Home Loan Bank stock, at cost	$ 22	$ 111

Other assets - Non-Readily Mark

Other assets - Non-Readily Marketable Equity Securities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Other Assets [Abstract]
Equity securities without readily determinable fair value, amount	$ 61	$ 55
Equity securities without readily determinable fair value, upward price adjustment, annual amount	4	28
Equity securities without readily determinable fair value, downward price adjustment, annual amount	(3)	(1)
Equity securities without readily determinable fair value, net adjustment, annual amount	1	$ 27
Equity securities without readily determinable fair value, upward price adjustment, cumulative amount amount	32
Equity securities without readily determinable fair value, downward price adjustment, cumulative amount	(4)
Equity securities without readily determinable fair value, net price adjustment, cumulative amount	$ 28

Other assets - Qualified Afford

Other assets - Qualified Affordable Housing Project Investments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Other Assets [Abstract]
Qualified affordable housing project investments	$ 1,024	$ 999
Qualified affordable housing project investments, commitment	422	479
Qualified affordable housing project commitment - 2020	152
Qualified affordable housing project commitment - 2021	161
Qualified affordable housing project commitment - 2022	82
Qualified affordable housing project commitment - 2023	5
Qualified affordable housing project commitment - 2024	2
Qualified affordable housing project commitment - 2025 and thereafter	20
Tax credits and other tax benefits	148	163	$ 156
Amortization expense included in the provision for income taxes	$ 121	$ 136	$ 153

Other assets - Seed Capital and

Other assets - Seed Capital and Private Equity Investments (Details) - NAV - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Line Items]
Unfunded commitments	$ 0	$ 0
Other Assets
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Line Items]
Fair value	181	215
Unfunded commitments	55	41
Other Assets \| Seed capital (a)
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Line Items]
Fair value	59	54
Unfunded commitments	0	0
Other Assets \| Private equitiy investments (SBICs)
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Line Items]
Fair value	89	74
Unfunded commitments	55	41
Other Assets \| Other
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Line Items]
Fair value	33	87
Unfunded commitments	$ 0	$ 0
Other Assets \| Minimum \| Other
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Line Items]
Redemption notice period		1 day
Other Assets \| Maximum \| Other
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Line Items]
Redemption notice period	95 days	95 days

Contract revenue - Disaggregati

Contract revenue - Disaggregation of Contract Revenues (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disaggregation of Revenue [Line Items]
Total fee and other revenue	$ 13,218	$ 12,794	$ 12,165
Income from consolidated investment management funds, net of noncontrolling interests	4,441	4,266	4,090
Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	11,454	11,666
Fee and other revenue - not in scope of ASC 606	1,794	1,126
Total fee and other revenue	13,248	12,792	12,202
Asset servicing fees \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	4,451	4,484
Clearing services fees \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	1,648	1,615
Issuer services fees \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	1,130	1,099
Treasury services fees \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	561	554
Total investment services fees \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	7,790	7,752
Investment management and performance fees \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	3,390	3,635
Financing-related fees \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	60	60
Distribution and servicing \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	129	140
Investment and other income \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	85	79
Investment Services \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	8,013	7,967
Fee and other revenue - not in scope of ASC 606	881	959
Total fee and other revenue	8,894	8,926	8,527
Investment Services \| Asset servicing fees \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	4,365	4,395
Investment Services \| Clearing services fees \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	1,649	1,615
Investment Services \| Issuer services fees \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	1,130	1,099
Investment Services \| Treasury services fees \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	560	553
Investment Services \| Total investment services fees \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	7,704	7,662
Investment Services \| Investment management and performance fees \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	17	16
Investment Services \| Financing-related fees \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	59	61
Investment Services \| Distribution and servicing \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	(49)	(51)
Investment Services \| Investment and other income \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	282	279
Investment Management \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	3,440	3,698
Fee and other revenue - not in scope of ASC 606	26	83
Total fee and other revenue	3,466	3,781	3,668
Income from consolidated investment management funds, net of noncontrolling interests	30	(1)	37
Investment Management \| Asset servicing fees \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	85	88
Investment Management \| Clearing services fees \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	0	0
Investment Management \| Issuer services fees \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	0	0
Investment Management \| Treasury services fees \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	1	1
Investment Management \| Total investment services fees \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	86	89
Investment Management \| Investment management and performance fees \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	3,373	3,619
Investment Management \| Financing-related fees \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	0	1
Investment Management \| Distribution and servicing \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	178	191
Investment Management \| Investment and other income \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	(197)	(202)
Other \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	1	1
Fee and other revenue - not in scope of ASC 606	887	84
Total fee and other revenue	888	85	$ 7
Other \| Asset servicing fees \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	1	1
Other \| Clearing services fees \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	(1)	0
Other \| Issuer services fees \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	0	0
Other \| Treasury services fees \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	0	0
Other \| Total investment services fees \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	0	1
Other \| Investment management and performance fees \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	0	0
Other \| Financing-related fees \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	1	(2)
Other \| Distribution and servicing \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	0	0
Other \| Investment and other income \| Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	$ 0	$ 2

Contract revenue - Narrative (D

Contract revenue - Narrative (Details) - USD ($)	12 Months Ended
Contract revenue - Narrative (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Capitalized Contract Cost [Line Items]
Contract with customer, asset	$ 2,400,000,000	$ 2,500,000,000
Provision for allowances	15,000,000	11,000,000
Contract assets representing accrued revenues not yet billed	32,000,000	36,000,000
Impairment of contract assets	0
Contract with customer, liability	168,000,000	171,000,000
Contract with customer, liability, revenue recognized	99,000,000
Capitalized contract cost, impairment	0
Incremental costs for obtaining contracts
Capitalized Contract Cost [Line Items]
Capitalized contract costs	$ 86,000,000	98,000,000
Capitalized contract cost, amortization period	9 years
Capitalized contract cost, amortization	$ 22,000,000	22,000,000
Costs to fulfill contract
Capitalized Contract Cost [Line Items]
Capitalized contract costs	16,000,000	20,000,000
Capitalized contract cost, amortization	$ 5,000,000	$ 5,000,000
Costs to fulfill contract \| Minimum
Capitalized Contract Cost [Line Items]
Capitalized contract cost, amortization period	7 years
Costs to fulfill contract \| Maximum
Capitalized Contract Cost [Line Items]
Capitalized contract cost, amortization period	9 years

Net interest revenue (Details)

Net interest revenue (Details) - USD ($) $ in Millions	12 Months Ended
Net interest revenue (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Interest revenue
Deposits with the Federal Reserve and other central banks	$ 448	$ 531	$ 319
Deposits with banks	265	219	120
Federal funds sold and securities purchased under resale agreements	2,154	1,116	423
Margin loans	454	510	343
Non-margin loans	1,335	1,356	1,077
Securities:
Taxable	2,701	2,520	1,977
Exempt from federal income taxes	36	54	64
Total securities	2,737	2,574	2,041
Trading securities	155	126	59
Total interest revenue	7,548	6,432	4,382
Interest expense
Deposits in domestic offices	958	537	107
Deposits in foreign offices	636	340	55
Federal funds purchased and securities sold under repurchase agreements	1,437	758	225
Trading liabilities	35	29	7
Other borrowed funds	59	58	26
Commercial paper	55	51	29
Customer payables	238	191	64
Long-term debt	942	857	561
Total interest expense	4,360	2,821	1,074
Net interest revenue	3,188	3,611	3,308
Provision for credit losses	(25)	(11)	(24)
Net interest revenue after provision for credit losses	$ 3,213	$ 3,622	$ 3,332

Income taxes - Provision (Benef

Income taxes - Provision (Benefit) for Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current taxes (benefits):
Federal	$ 592	$ 902	$ (99)
Foreign	484	442	388
State and local	113	119	74
Total current tax expense	1,189	1,463	363
Deferred tax expense (benefit):
Federal	(3)	(556)	36
Foreign	(13)	9	14
State and local	(53)	22	83
Total deferred tax (benefit) expense:	(69)	(525)	133
Provision for income taxes	$ 1,120	$ 938	$ 496

Income taxes - Narrative (Detai

Income taxes - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
Income taxes - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Provisional tax benefit, U.S. tax legislation	$ 710
Tax benefit, U.S. Tax legislation			$ 106
Foreign tax credits		$ 39	0
Valuation allowance		39	0
Undistributed earnings of foreign subsidiaries		280
Deferred tax liabilities, undistributed foreign earnings		60
Tax reserves	$ 128	173	103	$ 146
Impact on effective tax rate if tax reserves were unnecessary		173
Accrued interest, related to income taxes in the balance sheet		31
Additional tax expense related to interest		13	$ 8
Reasonably possible decrease in uncertain tax positions within the next 12 months, if a re-evaluation is required		$ 100

Income taxes - Components of In

Income taxes - Components of Income before Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Domestic	$ 3,516	$ 3,008	$ 2,699
Foreign	2,071	2,184	1,911
Income before income taxes	$ 5,587	$ 5,192	$ 4,610

Income taxes - Components of Ne

Income taxes - Components of Net Deferred Tax Liability (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Depreciation and amortization	$ 2,136	$ 2,060
Pension obligation	282	300
Renewable energy investment	268	295
Equity investments	63	65
Lease financings	42	130
Securities valuation	1
Securities valuation		(15)
Credit losses on loans	(46)	(54)
Reserves not deducted for tax	(120)	(143)
Employee benefits	(257)	(266)
Other assets	(43)	(65)
Other liabilities	229	189
U.S. foreign tax credits	(39)	0
Valuation allowance	39	0
Net deferred tax liability	$ 2,555	$ 2,496

Income taxes - Reconciliation o

Income taxes - Reconciliation of Effective Tax Rate (Details)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Federal rate	21.00%	21.00%	35.00%
State and local income taxes, net of federal income tax benefit	0.90%	2.10%	1.80%
Foreign operations	2.40%	0.50%	(4.20%)
Tax credits	(3.20%)	(3.30%)	(3.70%)
Tax-exempt income	(0.70%)	(0.80%)	(1.90%)
Leverage lease adjustment	0.00%	0.00%	(1.40%)
FDIC Assessment	0.20%	0.50%	0.00%
Stock compensation	(0.40%)	(0.60%)	(1.10%)
U.S. tax legislation	0	(0.017)	(0.133)
Other – net	(0.20%)	0.40%	(0.40%)
Effective tax rate	20.00%	18.10%	10.80%

Income taxes - Unrecognized Tax

Income taxes - Unrecognized Tax Positions (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Unrecognized Tax Benefits [Roll Forward]
Beginning balance	$ 103	$ 128	$ 146
Prior period tax positions:
Increases	60	6	20
Decreases	(3)	(8)	(4)
Current period tax positions	17	9	10
Settlements	(4)	(32)	(44)
Ending balance	$ 173	$ 103	$ 128

Long-term debt - Schedule of Lo

Long-term debt - Schedule of Long-term Debt (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Long-term debt	$ 27,501	$ 29,163
Fixed Rate Senior Notes
Debt Instrument [Line Items]
Debt, interest rate, minimum (percent)	1.95%	2.05%
Debt, interest rate, maximum (percent)	4.60%	5.45%
Debt, maturity date, beginning	2020
Debt, maturity date, end	2028
Long-term debt	$ 23,519	$ 24,995
Floating Rate Senior Notes
Debt Instrument [Line Items]
Debt, interest rate, minimum (percent)	1.71%	2.61%
Debt, interest rate, maximum (percent)	2.96%	3.86%
Debt, maturity date, beginning	2020
Debt, maturity date, end	2038
Long-term debt	$ 2,328	$ 2,628
Subordinated debt
Debt Instrument [Line Items]
Debt, interest rate, minimum (percent)	3.00%	3.00%
Debt, interest rate, maximum (percent)	7.50%	7.50%
Debt, maturity date, beginning	2021
Debt, maturity date, end	2029
Long-term debt	$ 1,654	$ 1,540

Long-term debt - Narrative (Det

Long-term debt - Narrative (Details) $ in Billions	Dec. 31, 2019USD ($)
Debt Disclosure [Abstract]
Notes and debentures that mature in 2020	$ 4
Notes and debentures that mature in 2021	5.9
Notes and debentures that mature in 2022	2.3
Notes and debentures that mature in 2023	5.5
Notes and debentures that mature in 2024	$ 2.5

Shareholders' equity - Narrativ

Shareholders' equity - Narrative (Details) - USD ($)	12 Months Ended
Shareholders' equity - Narrative (Details) - USD ($)	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized shares of common stock (shares)	3,500,000,000		3,500,000,000
Common stock, par value (usd per share)	$ 0.01		$ 0.01
Common stock, shares, outstanding (shares)	900,683,038
Additional shares authorized to be repurchased			$ 830,000,000
Treasury stock acquired (shares)	69,300,000
Treasury stock acquired, average cost per share (usd per share)	$ 48.01
Shares repurchased during period, value	$ 3,300,000,000
Stock repurchase program, remaining authorized repurchase amount	$ 1,900,000,000
Preferred stock, shares authorized (shares)	100,000,000		100,000,000
Preferred stock, par value (usd per share)	$ 0.01		$ 0.01
Temporary equity	$ 143,000,000		$ 129,000,000
A2017 Capital Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized amount of shares to repurchase				$ 2,400,000,000
A2019 Capital Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized amount of shares to repurchase		$ 3,940,000,000

Variable interest entities an_3

Variable interest entities and securitization - Assets and Liabilities of VIEs (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Variable Interest Entity [Line Items]
Nonredeemable noncontrolling interests	$ 102	$ 101
VME classification of carrying amount, assets	50	253
VME classification of carrying amount, liabilities	1	2
Noncontrolling interest in VME	1	1
Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
Trading assets	629	643
Other assets	16	220
Total assets	645	863
Other liabilities	388	373
Total liabilities	388	373
Nonredeemable noncontrolling interests	102	101
Variable Interest Entity, Primary Beneficiary \| Investment Management funds
Variable Interest Entity [Line Items]
Trading assets	229	243
Other assets	16	220
Total assets	245	463
Other liabilities	1	2
Total liabilities	1	2
Nonredeemable noncontrolling interests	102	101
Variable Interest Entity, Primary Beneficiary \| Securitization
Variable Interest Entity [Line Items]
Trading assets	400	400
Other assets	0	0
Total assets	400	400
Other liabilities	387	371
Total liabilities	387	371
Nonredeemable noncontrolling interests	$ 0	$ 0

Shareholders' equity - Preferre

Shareholders' equity - Preferred Stock Summary (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Class of Stock [Line Items]
Total shares issued and outstanding (shares)	35,826	35,826
Carrying value	$ 3,542	$ 3,542
Series A Noncumulative Perpetual Preferred Stock
Class of Stock [Line Items]
Per annum dividend rate	Greater of (i) three-month LIBOR plus 0.565% for the related distribution period; or (ii) 4.000%
Per annum dividend rate	4.00%
Total shares issued and outstanding (shares)	5,001	5,001
Carrying value	$ 500	$ 500
Liquidation preference per share (usd per share)	$ 100,000
Series A Noncumulative Perpetual Preferred Stock \| LIBOR
Class of Stock [Line Items]
Preferred stock, basis spread on variable rate	0.565%
Series C Noncumulative Perpetual Preferred Stock
Class of Stock [Line Items]
Per annum dividend rate	5.20%
Total shares issued and outstanding (shares)	5,825	5,825
Carrying value	$ 568	$ 568
Liquidation preference per share (usd per share)	$ 100,000
Series D Noncumulative Perpetual Preferred Stock
Class of Stock [Line Items]
Per annum dividend rate	4.50% to but excluding June 20, 2023, then a floating rate equal to the three-month LIBOR plus 2.46%
Per annum dividend rate	4.50%
Total shares issued and outstanding (shares)	5,000	5,000
Carrying value	$ 494	$ 494
Liquidation preference per share (usd per share)	$ 100,000
Series D Noncumulative Perpetual Preferred Stock \| LIBOR
Class of Stock [Line Items]
Preferred stock, basis spread on variable rate	2.46%
Series E Noncumulative Perpetual Preferred Stock
Class of Stock [Line Items]
Per annum dividend rate	4.95% to and including June 20, 2020, then a floating rate equal to the three-month LIBOR plus 3.42%
Per annum dividend rate	4.95%
Total shares issued and outstanding (shares)	10,000	10,000
Carrying value	$ 990	$ 990
Liquidation preference per share (usd per share)	$ 100,000
Series E Noncumulative Perpetual Preferred Stock \| LIBOR
Class of Stock [Line Items]
Preferred stock, basis spread on variable rate	3.42%
Series F Noncumulative Perpetual Preferred Stock
Class of Stock [Line Items]
Per annum dividend rate	4.625% to and including Sept. 20, 2026, then a floating rate equal to the three-month LIBOR plus 3.131%
Per annum dividend rate	4.625%
Total shares issued and outstanding (shares)	10,000	10,000
Carrying value	$ 990	$ 990
Liquidation preference per share (usd per share)	$ 100,000
Series F Noncumulative Perpetual Preferred Stock \| LIBOR
Class of Stock [Line Items]
Preferred stock, basis spread on variable rate	3.131%

Variable interest entities an_4

Variable interest entities and securitization - Non-consolidated VIEs (Details) - Variable Interest Entity, Not Primary Beneficiary - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Securities available-for-sale
Variable Interest Entity [Line Items]
Assets	$ 208	$ 214
Liabilities	0	0
Maximum loss exposure	208	214
Other
Variable Interest Entity [Line Items]
Assets	2,400	2,450
Liabilities	422	479
Maximum loss exposure	$ 2,822	$ 2,929

Shareholders' equity - Summary

Shareholders' equity - Summary of Preferred Dividends Paid (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Class of Stock [Line Items]
Preferred dividends paid	$ 169	$ 169	$ 175
Series A Preferred Stock
Class of Stock [Line Items]
Depositary shares per share	1.00%
Dividend paid per share (usd per share)	$ 4,055.55	$ 4,055.55	$ 4,055.55
Preferred dividends paid	$ 20	$ 20	$ 20
Series C Preferred Stock
Class of Stock [Line Items]
Depositary shares per share	0.025%
Dividend paid per share (usd per share)	$ 5,200	$ 5,200	$ 5,200
Preferred dividends paid	$ 31	$ 31	$ 31
Series D Noncumulative Perpetual Preferred Stock
Class of Stock [Line Items]
Depositary shares per share	1.00%
Dividend paid per share (usd per share)	$ 4,500	$ 4,500	$ 4,500
Preferred dividends paid	$ 22	$ 22	$ 22
Series E Preferred Stock
Class of Stock [Line Items]
Depositary shares per share	1.00%
Dividend paid per share (usd per share)	$ 4,950	$ 4,950	$ 4,950
Preferred dividends paid	$ 50	$ 50	$ 50
Series F Noncumulative Perpetual Preferred Stock
Class of Stock [Line Items]
Depositary shares per share	1.00%
Dividend paid per share (usd per share)	$ 4,625	$ 4,625	$ 5,254.51
Preferred dividends paid	$ 46	$ 46	$ 52

Shareholders' equity - Regulato

Shareholders' equity - Regulatory Capital Ratios (Details)	Dec. 31, 2019	Dec. 31, 2018
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1 ratio	11.50%	10.70%
Tier 1 capital ratio	13.70%	12.80%
Total capital ratio	14.40%	13.60%
Tier 1 leverage ratio	6.60%	6.60%
SLR	6.10%	6.00%
The Bank of New York Mellon
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1 ratio	15.10%	14.00%
Tier 1 capital ratio	15.10%	14.30%
Total capital ratio	15.20%	14.70%
Tier 1 leverage ratio	6.90%	7.60%
SLR	6.40%	6.80%

Shareholders' equity - Componen

Shareholders' equity - Components of Regulatory Capital Ratio (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1:	$ 18,540	$ 17,567
Other Tier 1 capital:	21,996	21,044
Average assets for Tier 1 leverage ratio	334,869	319,007
Total leverage exposure for SLR purposes	362,452	347,943
Common stock
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1:	37,941	37,096
Goodwill and intangible assets
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1:	(18,725)	(18,806)
Net pension fund assets
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1:	(272)	(320)
Equity method investments
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1:	(311)	(361)
Deferred tax assets
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1:	(46)	(42)
Other
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1:	(47)	0
Other Tier 1 capital:	(86)	(65)
Tier 2 capital:	(11)	(10)
Preferred stock
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Other Tier 1 capital:	3,542	3,542
Subordinated debt
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 2 capital:	1,248	1,250
Allowance for credit losses
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 2 capital:	216	252
Standardized Approach
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 2 capital:	1,453	1,492
Total capital:	23,449	22,536
Risk-weighted assets:	148,695	149,618
Excess of expected credit losses
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 2 capital:	0	65
Advanced Approach
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 2 capital:	1,237	1,305
Total capital:	23,233	22,349
Risk-weighted assets:	160,898	164,671
Advanced Approach \| Credit Risk
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Risk-weighted assets:	95,490	92,917
Advanced Approach \| Market Risk
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Risk-weighted assets:	4,020	3,454
Advanced Approach \| Operational Risk
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Risk-weighted assets:	$ 61,388	$ 68,300

Shareholders' equity - Amounts

Shareholders' equity - Amounts of Capital (Details) $ in Millions	Dec. 31, 2019USD ($)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1	$ 4,864
Tier 1 capital	5,906
Total capital	3,925
Tier 1 leverage ratio	8,601
SLR	3,873
The Bank of New York Mellon
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
CET1	11,045
Tier 1 capital	9,130
Total capital	6,623
Tier 1 leverage ratio	5,424
SLR	$ 1,157

Other comprehensive income (l_3

Other comprehensive income (loss) - Components (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Pre-tax amount
Total other comprehensive income (loss), Pre-tax amount	$ 769	$ (815)	$ 1,461
Tax (expense) benefit
Total other comprehensive income (loss), Tax (expense) benefit	(143)	(8)	(38)
After-tax amount
Total other comprehensive (loss) income, net of tax	626	(823)	1,423
Foreign currency translation
Pre-tax amount
Other comprehensive income (loss), Pre-tax amount	135	(157)	659
Total other comprehensive income (loss), Pre-tax amount	135	(157)	659
Tax (expense) benefit
Other comprehensive income (loss), Tax (expense) benefit	16	(156)	194
Total other comprehensive income (loss), Tax (expense) benefit	16	(156)	194
After-tax amount
Other comprehensive income (loss), After-tax amount	151	(313)	853
Total other comprehensive (loss) income, net of tax	151	(313)	853
Unrealized gain (loss) on assets available-for-sale
Pre-tax amount
Other comprehensive income (loss), Pre-tax amount	680	(542)	237
Reclassification adjustment, Pre-tax amount	18	48	(3)
Total other comprehensive income (loss), Pre-tax amount	698	(494)	234
Tax (expense) benefit
Other comprehensive income (loss), Tax (expense) benefit	(168)	126	(84)
Reclassification adjustment, Tax (expense) benefit	(4)	(12)	0
Total other comprehensive income (loss), Tax (expense) benefit	(172)	114	(84)
After-tax amount
Other comprehensive income (loss), After-tax amount	512	(416)	153
Reclassification adjustment, After-tax amount	14	36	(3)
Total other comprehensive (loss) income, net of tax	526	(380)	150
Defined benefit plans
Pre-tax amount
Reclassification adjustment, Pre-tax amount	52	93	100
Total other comprehensive income (loss), Pre-tax amount	(70)	(151)	555
Tax (expense) benefit
Reclassification adjustment, Tax (expense) benefit	(18)	(24)	(32)
Total other comprehensive income (loss), Tax (expense) benefit	16	31	(144)
After-tax amount
Reclassification adjustment, After-tax amount	34	69	68
Total other comprehensive (loss) income, net of tax	(54)	(120)	411
Prior service cost arising during the period
Pre-tax amount
Other comprehensive income (loss), Pre-tax amount	(1)	0	0
Tax (expense) benefit
Other comprehensive income (loss), Tax (expense) benefit	0	0	0
After-tax amount
Other comprehensive income (loss), After-tax amount	(1)	0	0
Net (loss) gain arising during the period
Pre-tax amount
Other comprehensive income (loss), Pre-tax amount	(121)	(244)	454
Tax (expense) benefit
Other comprehensive income (loss), Tax (expense) benefit	34	55	(112)
After-tax amount
Other comprehensive income (loss), After-tax amount	(87)	(189)	342
Foreign exchange adjustment
Pre-tax amount
Other comprehensive income (loss), Pre-tax amount	0	0	1
Tax (expense) benefit
Other comprehensive income (loss), Tax (expense) benefit	0	0	0
After-tax amount
Other comprehensive income (loss), After-tax amount	0	0	1
Unrealized gain (loss) on cash flow hedges
Pre-tax amount
Other comprehensive income (loss), Pre-tax amount	16	(15)	33
Reclassification adjustment, Pre-tax amount	(10)	2	(20)
Total other comprehensive income (loss), Pre-tax amount	6	(13)	13
Tax (expense) benefit
Other comprehensive income (loss), Tax (expense) benefit	(7)	4	(9)
Reclassification adjustment, Tax (expense) benefit	4	(1)	5
Total other comprehensive income (loss), Tax (expense) benefit	(3)	3	(4)
After-tax amount
Other comprehensive income (loss), After-tax amount	9	(11)	24
Reclassification adjustment, After-tax amount	(6)	1	(15)
Total other comprehensive (loss) income, net of tax	3	(10)	9
Unrealized gain (loss) on cash flow hedges \| Interest expense
Pre-tax amount
Reclassification adjustment, Pre-tax amount	(7)	0	0
Tax (expense) benefit
Reclassification adjustment, Tax (expense) benefit	2	0	0
After-tax amount
Reclassification adjustment, After-tax amount	(5)	0	0
Unrealized gain (loss) on cash flow hedges \| Other revenue
Pre-tax amount
Reclassification adjustment, Pre-tax amount	0	(2)	(8)
Tax (expense) benefit
Reclassification adjustment, Tax (expense) benefit	0	0	2
After-tax amount
Reclassification adjustment, After-tax amount	0	(2)	(6)
Unrealized gain (loss) on cash flow hedges \| Trading revenue
Pre-tax amount
Reclassification adjustment, Pre-tax amount	0	0	(2)
Tax (expense) benefit
Reclassification adjustment, Tax (expense) benefit	0	0	1
After-tax amount
Reclassification adjustment, After-tax amount	0	0	(1)
Unrealized gain (loss) on cash flow hedges \| Staff expense
Pre-tax amount
Reclassification adjustment, Pre-tax amount	(3)	4	(10)
Tax (expense) benefit
Reclassification adjustment, Tax (expense) benefit	2	(1)	2
After-tax amount
Reclassification adjustment, After-tax amount	$ (1)	$ 3	$ (8)

Other comprehensive income (l_4

Other comprehensive income (loss) - Changes in AOCI (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Jan. 01, 2019	Jan. 01, 2018
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 40,739	$ 41,567	$ 39,429
Adjusted balance				$ 40,739	$ 41,537
Change in accumulated other comprehensive income (loss)	623	(812)	1,408
Ending balance	41,585	40,739	41,567
Foreign currency translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(1,915)	(1,613)	(2,451)
Adjusted balance				(1,800)	(1,613)
Change in accumulated other comprehensive income (loss)	148	(302)	838
Ending balance	(1,652)	(1,915)	(1,613)
Accumulated defined benefits adjustment \| Pension Benefits
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(1,005)	(887)	(1,306)
Adjusted balance				(1,218)	(887)
Change in accumulated other comprehensive income (loss)	(57)	(118)	419
Ending balance	(1,275)	(1,005)	(887)
Accumulated defined benefits adjustment \| Other post-retirement benefits
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(52)	(50)	(42)
Adjusted balance				(52)	(50)
Change in accumulated other comprehensive income (loss)	3	(2)	(8)
Ending balance	(49)	(52)	(50)
Unrealized gain (loss) on assets available-for-sale
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(196)	186	36
Adjusted balance				(190)	184
Change in accumulated other comprehensive income (loss)	526	(380)	150
Ending balance	336	(196)	186
Unrealized gain (loss) on cash flow hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(3)	7	(2)
Adjusted balance				(1)	7
Change in accumulated other comprehensive income (loss)	3	(10)	9
Ending balance	2	(3)	7
Total accumulated other comprehensive income (loss), net of tax
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(3,171)	(2,357)	(3,765)
Adjusted balance				(3,261)	(2,359)
Change in accumulated other comprehensive income (loss)	623	(812)	1,408
Ending balance	$ (2,638)	$ (3,171)	$ (2,357)
ASU 2017-12
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Adjustment for the cumulative effect of applying the ASU					25
ASU 2017-12 \| Foreign currency translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Adjustment for the cumulative effect of applying the ASU					0
ASU 2017-12 \| Accumulated defined benefits adjustment \| Pension Benefits
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Adjustment for the cumulative effect of applying the ASU					0
ASU 2017-12 \| Accumulated defined benefits adjustment \| Other post-retirement benefits
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Adjustment for the cumulative effect of applying the ASU					0
ASU 2017-12 \| Unrealized gain (loss) on assets available-for-sale
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Adjustment for the cumulative effect of applying the ASU					(2)
ASU 2017-12 \| Unrealized gain (loss) on cash flow hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Adjustment for the cumulative effect of applying the ASU					0
ASU 2017-12 \| Total accumulated other comprehensive income (loss), net of tax
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Adjustment for the cumulative effect of applying the ASU					$ (2)
ASU 2018-02 \| Foreign currency translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Adjustment for the cumulative effect of applying the ASU				115
ASU 2018-02 \| Accumulated defined benefits adjustment \| Pension Benefits
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Adjustment for the cumulative effect of applying the ASU				(213)
ASU 2018-02 \| Accumulated defined benefits adjustment \| Other post-retirement benefits
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Adjustment for the cumulative effect of applying the ASU				0
ASU 2018-02 \| Unrealized gain (loss) on assets available-for-sale
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Adjustment for the cumulative effect of applying the ASU				6
ASU 2018-02 \| Unrealized gain (loss) on cash flow hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Adjustment for the cumulative effect of applying the ASU				2
ASU 2018-02 \| Total accumulated other comprehensive income (loss), net of tax
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Adjustment for the cumulative effect of applying the ASU				$ (90)

Stock-based compensation - Narr

Stock-based compensation - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option exercisable period - minimum	1 year
Stock option exercisable period - maximum	10 years
Unrecognized compensation cost related to nonvested awards	$ 208
Unrecognized compensation cost expected to be recognized for nonvested award over a weighted-average period (in years)	2 years 2 months 12 days
Total intrinsic value of options exercised	$ 63	$ 61	$ 159
Proceeds from the exercise of stock options	65	80	431
Excess tax benefit realized for tax deductions from options exercised	$ 10	$ 10	$ 16
Granted (shares)	0	0	0
Restricted Stock and Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation cost	$ 222	$ 270	$ 273
Tax benefit recognized from awards	$ 53	$ 65	$ 66
Restricted Stock and Restricted Stock Units \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation, vesting period	0 years
Restricted Stock and Restricted Stock Units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation, vesting period	4 years
Performance Units \| Executive Committee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation, vesting period	3 years	3 years	3 years
Shares granted (shares)	576,855	362,798	793,847
Restricted Stock, RSUs and PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total fair value of stock-based compensation that vested during the period	$ 278	$ 289	$ 260
Tax benefit from awards vested during period	$ 11	26	34
Subsidiary Long Term Incentive Plans \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation, required service period	3 years
Subsidiary Long Term Incentive Plans \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation, required service period	5 years
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation cost	$ 1	1	1
Tax benefit recognized from awards	$ 1	1	1
Long-Term Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation, authorized shares (shares)	35,660,228
Long-Term Incentive Plan, Portion for the Vesting of Retirement Eligible Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation cost	$ 84	$ 93	$ 109

Stock-based compensation - Nonv

Stock-based compensation - Nonvested Restricted Stock and Restricted Stock Units Activity (Details) - Non-Vested Performance-Based Stock Units, Restricted Stock and Restricted Stock Units	12 Months Ended
	Dec. 31, 2019$ / sharesshares
Number of Shares
Nonvested PSUs, restricted stock and RSUs, beginning balance (shares) \| shares	14,211,712
Granted (shares) \| shares	6,179,808
Vested (shares) \| shares	(6,201,276)
Forfeited (shares) \| shares	(1,456,946)
Nonvested PSUs, restricted stock and RSUs, ending balance (shares) \| shares	12,733,298
Weighted-average fair value
Nonvested PSUs, restricted stock and RSUs, beginning balance (usd per share) \| $ / shares	$ 49.43
Granted (usd per share) \| $ / shares	51.59
Vested (usd per share) \| $ / shares	43.21
Forfeited (usd per share) \| $ / shares	49.74
Nonvested PSUs, restricted stock and RSUs, ending balance (usd per share) \| $ / shares	$ 50.77

Stock-based compensation - Summ

Stock-based compensation - Summary of Stock Option Activity (Details) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Shares subject to option
Beginning Balance (shares)	6,714,283
Granted (shares)	0	0	0
Exercised (shares)	(2,543,235)
Canceled/Expired (shares)	(27,473)
Ending Balance (shares)	4,143,575	6,714,283
Vested and expected to vest (shares)	4,143,575
Exercisable (shares)	4,143,575
Weighted-average exercise price
Beginning Balance (usd per share)	$ 25.67
Granted (usd per share)	0
Exercised (usd per share)	25.14
Canceled/Expired (usd per share)	21.93
Ending Balance (usd per share)	26.03	$ 25.67
Vested and expected to vest (usd per share)	26.03
Exercisable (usd per share)	$ 26.03
Weighted-average remaining contractual term (in years)
Weighted- average remaining contractual term (in years)	1 year 4 months 24 days	2 years
Vested and expected to vest	1 year 4 months 24 days
Exercisable	1 year 4 months 24 days

Stock-based compensation - Stoc

Stock-based compensation - Stock Options Outstanding (Details) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options exercisable, Weighted-average exercise price (usd per share)		$ 25.67	$ 27.27
Options exercisable (shares)		6,714,283	9,302,140
$ 18 to 31
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Range of exercise prices, lower range (usd per share)	$ 18
Range of exercise prices, upper range (usd per share)	$ 31
Options outstanding (shares)	4,143,575
Options outstanding, Weighted-average remaining contractual life (in years)	1 year 4 months 24 days
Options outstanding, Weighted-average exercise price (usd per share)	$ 26.03
Options exercisable, Weighted-average exercise price (usd per share)	$ 26.03
Options exercisable (shares)	4,143,575

Stock-based compensation - Aggr

Stock-based compensation - Aggregate Intrinsic Value of Options (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Payment Arrangement [Abstract]
Outstanding	$ 101	$ 144	$ 247
Exercisable	$ 101	$ 144	$ 247

Employee benefit plans - Narrat

Employee benefit plans - Narrative (Details) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)employeeplanshares	Dec. 31, 2018USD ($)shares	Dec. 31, 2017USD ($)
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation for all defined benefit plans	$ 6,000	$ 5,200
Recognized cost of defined contribution plans, excluding the ESOP	$ 244	$ 244	$ 232
Shares of stock owned by Employee Stock Ownership Plan (shares) \| shares	4.6	5
Fair value of shares total ESOP assets	$ 235	$ 236
The Bank of New York Mellon Corporation 401(k) Savings Plan
Defined Benefit Plan Disclosure [Line Items]
401(k) Employer matching contribution (percent)	5.00%
401(k), Employer non-elective contribution based on earnings (percent)	2.00%
401(k), shares of common stock owned (shares) \| shares	11.5	12.7
401(k), fair value of total assets	$ 7,400	$ 6,200
United States
Defined Benefit Plan Disclosure [Line Items]
Number of employees covered by defined contribution plan \| employee	11,200
United States \| Equities \| Minimum
Defined Benefit Plan Disclosure [Line Items]
Percentage of plan assets	20.00%
United States \| Equities \| Maximum
Defined Benefit Plan Disclosure [Line Items]
Percentage of plan assets	60.00%
United States \| Fixed income \| Minimum
Defined Benefit Plan Disclosure [Line Items]
Percentage of plan assets	40.00%
United States \| Fixed income \| Maximum
Defined Benefit Plan Disclosure [Line Items]
Percentage of plan assets	80.00%
United States \| Defined Benefit Plan, Cash and Cash Equivalents \| Minimum
Defined Benefit Plan Disclosure [Line Items]
Percentage of plan assets	0.00%
United States \| Defined Benefit Plan, Cash and Cash Equivalents \| Maximum
Defined Benefit Plan Disclosure [Line Items]
Percentage of plan assets	10.00%
Foreign
Defined Benefit Plan Disclosure [Line Items]
Number of employees covered by defined contribution plan \| employee	13,100
Pension Plan \| United States
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.45%	4.45%
Cash contributions expected to be made to fund defined benefit plans in the next fiscal year	$ 15
Pension Plan \| Foreign
Defined Benefit Plan Disclosure [Line Items]
Discount rate	2.02%	2.95%
Cash contributions expected to be made to fund defined benefit plans in the next fiscal year	$ 11
pre-Medicare \| United States
Defined Benefit Plan Disclosure [Line Items]
Assumed healthcare cost trend rate used in determining benefit expense for next fiscal year (percent)	6.40%
Assumed healthcare cost trend rate used in determining benefit expense for ultimate year (percent)	4.75%
Medicare \| United States
Defined Benefit Plan Disclosure [Line Items]
Assumed healthcare cost trend rate used in determining benefit expense for next fiscal year (percent)	5.35%
Assumed healthcare cost trend rate used in determining benefit expense for ultimate year (percent)	4.75%
Healthcare Benefits \| United States
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.45%	4.45%
Cash contributions expected to be made to fund defined benefit plans in the next fiscal year	$ 12
Healthcare Benefits \| Foreign
Defined Benefit Plan Disclosure [Line Items]
Discount rate	2.10%	3.10%
Cash contributions expected to be made to fund defined benefit plans in the next fiscal year	$ 1
Qualified Plan
Defined Benefit Plan Disclosure [Line Items]
Number of plans \| plan	1
Defined Contribution Plan, Tranche One \| The Bank of New York Mellon Corporation 401(k) Savings Plan
Defined Benefit Plan Disclosure [Line Items]
401(k) Employer matching contribution, percent match	100.00%
401(k) Employer matching contribution, percent of employees' base pay	4.00%
Defined Contribution Plan, Tranche Two \| The Bank of New York Mellon Corporation 401(k) Savings Plan
Defined Benefit Plan Disclosure [Line Items]
401(k) Employer matching contribution, percent match	50.00%
401(k) Employer matching contribution, percent of employees' base pay	2.00%

Employee benefit plans - Combin

Employee benefit plans - Combined Data for Defined Benefit Pension and Post Retirement Healthcare Plans (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Pension Benefits \| Domestic
Weighted-average assumptions used to determine benefit obligations
Discount rate	3.45%	4.45%
Change in benefit obligation
Benefit obligation at beginning of period	$ (4,123)	$ (4,405)
Service cost	0	0	$ 0
Interest cost	(178)	(169)	(180)
Amendments	0	0
Actuarial gain (loss)	(585)	219
Curtailments	0	0
Benefits paid	227	232
Benefit obligation at end of period	(4,659)	(4,123)	(4,405)
Change in fair value of plan assets
Fair value at beginning of period	5,040	5,496
Actual return on plan assets	910	(257)
Employer contributions	15	33
Benefit payments	(227)	(232)
Fair value at end of period	5,738	5,040	5,496
Funded status at end of period	1,079	917
Amounts recognized in accumulated other comprehensive loss (income) consist of:
Net loss (gain)	1,557	1,598
Prior service cost (credit)	0	0
Total (before tax effects)	$ 1,557	$ 1,598
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Weighted-Average Interest Crediting Rate	4.00%	4.00%
Pension Benefits \| Foreign
Weighted-average assumptions used to determine benefit obligations
Discount rate	2.02%	2.95%
Rate of compensation increase	3.19%	2.98%
Change in benefit obligation
Benefit obligation at beginning of period	$ (1,104)	$ (1,322)
Service cost	(11)	(28)	(31)
Interest cost	(32)	(32)	(33)
Amendments	(1)	0
Actuarial gain (loss)	(264)	173
Curtailments	0	11
Benefits paid	40	25
Foreign exchange adjustment	(22)	69
Benefit obligation at end of period	(1,394)	(1,104)	(1,322)
Change in fair value of plan assets
Fair value at beginning of period	1,316	1,393
Actual return on plan assets	191	1
Employer contributions	30	22
Benefit payments	(40)	(25)
Foreign exchange adjustment	32	(75)
Fair value at end of period	1,529	1,316	1,393
Funded status at end of period	135	212
Amounts recognized in accumulated other comprehensive loss (income) consist of:
Net loss (gain)	221	105
Prior service cost (credit)	2	1
Total (before tax effects)	$ 223	$ 106
Healthcare Benefits \| Domestic
Weighted-average assumptions used to determine benefit obligations
Discount rate	3.45%	4.45%
Rate of compensation increase	3.00%	3.00%
Change in benefit obligation
Benefit obligation at beginning of period	$ (149)	$ (175)
Service cost	(1)	(1)	(1)
Interest cost	(6)	(7)	(7)
Amendments	0	0
Actuarial gain (loss)	(1)	22
Curtailments	0	0
Benefits paid	12	12
Benefit obligation at end of period	(145)	(149)	(175)
Change in fair value of plan assets
Fair value at beginning of period	99	107
Actual return on plan assets	18	(8)
Employer contributions	12	12
Benefit payments	(12)	(12)
Fair value at end of period	117	99	107
Funded status at end of period	(28)	(50)
Amounts recognized in accumulated other comprehensive loss (income) consist of:
Net loss (gain)	70	84
Prior service cost (credit)	(33)	(40)
Total (before tax effects)	$ 37	$ 44
Healthcare Benefits \| Foreign
Weighted-average assumptions used to determine benefit obligations
Discount rate	2.10%	3.10%
Change in benefit obligation
Benefit obligation at beginning of period	$ (5)	$ (4)
Service cost	0	0	0
Interest cost	0	0	0
Amendments	0	0
Actuarial gain (loss)	(1)	(1)
Curtailments	0	0
Benefits paid	0	0
Foreign exchange adjustment	0	0
Benefit obligation at end of period	(6)	(5)	(4)
Change in fair value of plan assets
Fair value at beginning of period	0	0
Actual return on plan assets	0	0
Employer contributions	0	0
Benefit payments	0	0
Foreign exchange adjustment	0	0
Fair value at end of period	0	0	$ 0
Funded status at end of period	(6)	(5)
Amounts recognized in accumulated other comprehensive loss (income) consist of:
Net loss (gain)	1	0
Prior service cost (credit)	0	0
Total (before tax effects)	$ 1	$ 0

Employee benefit plans - Net Pe

Employee benefit plans - Net Periodic Benefit (Credit) Cost (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Pension Benefits \| Domestic
Weighted-average assumptions to calculate net periodic benefit cost (credit):
Market-related value of plan assets	$ 5,304	$ 5,238	$ 5,026
Discount rate	4.45%	3.97%	4.35%
Expected rate of return on plan assets	6.50%	6.625%	6.625%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Weighted-Average Interest Crediting Rate	4.00%	4.00%	4.00%
Components of net periodic benefit cost (credit):
Service cost	$ 0	$ 0	$ 0
Interest cost	178	169	180
Expected return on assets	(337)	(339)	(325)
Amortization of:
Prior service cost (credit)	0	0	0
Net actuarial loss	53	68	67
Settlement loss	0	5	2
Net periodic benefit (credit) cost	(106)	(97)	(76)
Pension Benefits \| Foreign
Weighted-average assumptions to calculate net periodic benefit cost (credit):
Market-related value of plan assets	$ 1,277	$ 1,266	$ 994
Discount rate	2.95%	2.45%	2.53%
Expected rate of return on plan assets	3.54%	4.56%	4.61%
Rate of compensation increase	2.98%	3.02%	3.60%
Components of net periodic benefit cost (credit):
Service cost	$ 11	$ 28	$ 31
Interest cost	32	32	33
Expected return on assets	(45)	(57)	(50)
Amortization of:
Prior service cost (credit)	0	0	0
Net actuarial loss	2	22	35
Settlement loss	0	0	0
Net periodic benefit (credit) cost	0	25	49
Healthcare Benefits \| Domestic
Weighted-average assumptions to calculate net periodic benefit cost (credit):
Market-related value of plan assets	$ 111	$ 108	$ 102
Discount rate	4.45%	3.97%	4.35%
Expected rate of return on plan assets	6.50%	6.625%	6.625%
Rate of compensation increase	3.00%	3.00%	3.00%
Components of net periodic benefit cost (credit):
Service cost	$ 1	$ 1	$ 1
Interest cost	6	7	7
Expected return on assets	(7)	(8)	(7)
Amortization of:
Prior service cost (credit)	(7)	(9)	(10)
Net actuarial loss	4	7	6
Settlement loss	0	0	0
Net periodic benefit (credit) cost	$ (3)	$ (2)	$ (3)
Healthcare Benefits \| Foreign
Weighted-average assumptions to calculate net periodic benefit cost (credit):
Discount rate	3.10%	2.50%	2.60%
Components of net periodic benefit cost (credit):
Service cost	$ 0	$ 0	$ 0
Interest cost	0	0	0
Expected return on assets	0	0	0
Amortization of:
Prior service cost (credit)	0	0	0
Net actuarial loss	0	0	0
Settlement loss	0	0	0
Net periodic benefit (credit) cost	$ 0	$ 0	$ 0

Employee benefit plans - Change

Employee benefit plans - Changes in Other Comprehensive Income (Loss) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)
Pension Benefits \| Domestic
Defined Benefit Plan Disclosure [Line Items]
Net loss (gain) arising during period	$ 12
Recognition of prior years’ net (loss)	(53)
Prior service cost arising during the period	0
Recognition of prior years’ service credit	0
Total recognized in other comprehensive (income) loss (before tax effects)	(41)
Pension Benefits \| Foreign
Defined Benefit Plan Disclosure [Line Items]
Net loss (gain) arising during period	118
Recognition of prior years’ net (loss)	(2)
Prior service cost arising during the period	1
Recognition of prior years’ service credit	0
Total recognized in other comprehensive (income) loss (before tax effects)	117
Healthcare Benefits \| Domestic
Defined Benefit Plan Disclosure [Line Items]
Net loss (gain) arising during period	(10)
Recognition of prior years’ net (loss)	(4)
Prior service cost arising during the period	0
Recognition of prior years’ service credit	7
Total recognized in other comprehensive (income) loss (before tax effects)	(7)
Healthcare Benefits \| Foreign
Defined Benefit Plan Disclosure [Line Items]
Net loss (gain) arising during period	1
Recognition of prior years’ net (loss)	0
Prior service cost arising during the period	0
Recognition of prior years’ service credit	0
Total recognized in other comprehensive (income) loss (before tax effects)	$ 1

Employee benefit plans - Amount

Employee benefit plans - Amounts Expected to be Recognized in Net Periodic Benefit Income (Cost) (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Prepaid benefit cost	$ 1,464	$ 1,357
Pension Benefits \| Domestic
Defined Benefit Plan Disclosure [Line Items]
Prepaid benefit cost	1,249	1,077
Accrued benefit cost	170	160
Total pension and healthcare benefits	1,079	917
Pension Benefits \| Foreign
Defined Benefit Plan Disclosure [Line Items]
Prepaid benefit cost	222	280
Accrued benefit cost	87	68
Total pension and healthcare benefits	135	212
Healthcare Benefits \| Domestic
Defined Benefit Plan Disclosure [Line Items]
Accrued benefit cost	28	50
Total pension and healthcare benefits	(28)	(50)
Healthcare Benefits \| Foreign
Defined Benefit Plan Disclosure [Line Items]
Accrued benefit cost	6	5
Total pension and healthcare benefits	$ (6)	$ (5)

Employee benefit plans - Plans

Employee benefit plans - Plans with Obligations in Excess of Plan Assets (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Pension Benefits \| Domestic
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	$ 170	$ 160
Fair value of plan assets	0	0
Accumulated benefit obligation	170	160
Fair value of plan assets	0	0
Pension Benefits \| Foreign
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	384	245
Fair value of plan assets	297	177
Accumulated benefit obligation	164	67
Fair value of plan assets	114	27
Healthcare Benefits \| Domestic
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation	85	80
Fair value of plan assets	0	0
Healthcare Benefits \| Foreign
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation	6	5
Fair value of plan assets	$ 0	$ 0

Employee benefit plans - Benefi

Employee benefit plans - Benefit Payments and Expected to be Paid (Details) $ in Millions	Dec. 31, 2019USD ($)
Pension Benefits \| Domestic
Defined Benefit Plan Disclosure [Line Items]
2020	$ 254
2021	265
2022	260
2023	266
2024	275
2025-2029	1,333
Total pension and healthcare benefits	2,653
Pension Benefits \| Foreign
Defined Benefit Plan Disclosure [Line Items]
2020	20
2021	20
2022	21
2023	24
2024	24
2025-2029	144
Total pension and healthcare benefits	253
Healthcare Benefits \| Domestic
Defined Benefit Plan Disclosure [Line Items]
2020	12
2021	10
2022	10
2023	10
2024	9
2025-2029	42
Total pension and healthcare benefits	93
Healthcare Benefits \| Foreign
Defined Benefit Plan Disclosure [Line Items]
2020	0
2021	0
2022	0
2023	0
2024	0
2025-2029	1
Total pension and healthcare benefits	$ 1

Employee benefit plans - Pensio

Employee benefit plans - Pension Investment Asset Allocation (Details)	Dec. 31, 2019	Dec. 31, 2018
Domestic
Defined Benefit Plan Disclosure [Line Items]
Total pension benefits	100.00%	100.00%
Domestic \| Fixed income
Defined Benefit Plan Disclosure [Line Items]
Total pension benefits	56.00%	45.00%
Domestic \| Equities
Defined Benefit Plan Disclosure [Line Items]
Total pension benefits	42.00%	52.00%
Domestic \| Alternative investments
Defined Benefit Plan Disclosure [Line Items]
Total pension benefits	2.00%	2.00%
Domestic \| Private equities
Defined Benefit Plan Disclosure [Line Items]
Total pension benefits	0.00%	1.00%
Domestic \| Real estate
Defined Benefit Plan Disclosure [Line Items]
Total pension benefits	0.00%	0.00%
Domestic \| Cash
Defined Benefit Plan Disclosure [Line Items]
Total pension benefits	0.00%	0.00%
Foreign
Defined Benefit Plan Disclosure [Line Items]
Total pension benefits	100.00%	100.00%
Foreign \| Fixed income
Defined Benefit Plan Disclosure [Line Items]
Total pension benefits	80.00%	36.00%
Foreign \| Equities
Defined Benefit Plan Disclosure [Line Items]
Total pension benefits	8.00%	48.00%
Foreign \| Alternative investments
Defined Benefit Plan Disclosure [Line Items]
Total pension benefits	10.00%	9.00%
Foreign \| Private equities
Defined Benefit Plan Disclosure [Line Items]
Total pension benefits	0.00%	0.00%
Foreign \| Real estate
Defined Benefit Plan Disclosure [Line Items]
Total pension benefits	0.00%	4.00%
Foreign \| Cash
Defined Benefit Plan Disclosure [Line Items]
Total pension benefits	2.00%	3.00%

Employee benefit plans - Pens_2

Employee benefit plans - Pension Plan Investment Assets on Recurring Basis (Details) - Assets measured at fair value on a recurring basis - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Domestic
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	$ 5,738	$ 5,040
Domestic \| Level 1, 2 and 3
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	5,577	4,880
Domestic \| Level 1, 2 and 3 \| U.S. equity
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	1,638	1,514
Domestic \| Level 1, 2 and 3 \| Non-U.S. equity
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	195	160
Domestic \| Level 1, 2 and 3 \| Derivatives
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	(130)
Domestic \| Level 1, 2 and 3 \| Commingled
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	1,982	435
Domestic \| Level 1, 2 and 3 \| U.S. equity
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	688	934
Domestic \| Level 1, 2 and 3 \| U.S. Treasury securities
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	362	630
Domestic \| Level 1, 2 and 3 \| U.S. government agencies
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	7	44
Domestic \| Level 1, 2 and 3 \| Sovereign government obligations
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	3	8
Domestic \| Level 1, 2 and 3 \| U.S. corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	814	972
Domestic \| Level 1, 2 and 3 \| Other debt securities
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	15	69
Domestic \| Level 1, 2 and 3 \| Mutual funds
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	3	114
Domestic \| Level 1
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	2,201	2,421
Domestic \| Level 1 \| U.S. equity
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	1,638	1,514
Domestic \| Level 1 \| Non-U.S. equity
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	195	160
Domestic \| Level 1 \| Derivatives
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	0
Domestic \| Level 1 \| Commingled
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	0	0
Domestic \| Level 1 \| U.S. equity
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	0	0
Domestic \| Level 1 \| U.S. Treasury securities
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	362	630
Domestic \| Level 1 \| U.S. government agencies
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	0	0
Domestic \| Level 1 \| Sovereign government obligations
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	3	3
Domestic \| Level 1 \| U.S. corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	0	0
Domestic \| Level 1 \| Other debt securities
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	0	0
Domestic \| Level 1 \| Mutual funds
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	3	114
Domestic \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	3,376	2,459
Domestic \| Level 2 \| U.S. equity
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	0	0
Domestic \| Level 2 \| Non-U.S. equity
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	0	0
Domestic \| Level 2 \| Derivatives
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	(130)
Domestic \| Level 2 \| Commingled
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	1,982	435
Domestic \| Level 2 \| U.S. equity
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	688	934
Domestic \| Level 2 \| U.S. Treasury securities
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	0	0
Domestic \| Level 2 \| U.S. government agencies
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	7	44
Domestic \| Level 2 \| Sovereign government obligations
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	0	5
Domestic \| Level 2 \| U.S. corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	814	972
Domestic \| Level 2 \| Other debt securities
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	15	69
Domestic \| Level 2 \| Mutual funds
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	0	0
Domestic \| Level 3
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	0	0
Domestic \| Level 3 \| U.S. equity
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	0	0
Domestic \| Level 3 \| Non-U.S. equity
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	0	0
Domestic \| Level 3 \| Derivatives
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	0
Domestic \| Level 3 \| Commingled
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	0	0
Domestic \| Level 3 \| U.S. equity
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	0	0
Domestic \| Level 3 \| U.S. Treasury securities
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	0	0
Domestic \| Level 3 \| U.S. government agencies
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	0	0
Domestic \| Level 3 \| Sovereign government obligations
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	0	0
Domestic \| Level 3 \| U.S. corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	0	0
Domestic \| Level 3 \| Other debt securities
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	0	0
Domestic \| Level 3 \| Mutual funds
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	0	0
Domestic \| NAV \| Funds of funds
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	134	130
Domestic \| NAV \| Venture capital and partnership interests
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	27	30
Foreign
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	1,529	1,316
Foreign \| Level 1, 2 and 3
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	1,370	1,094
Foreign \| Level 1, 2 and 3 \| Sovereign government obligations
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	130	126
Foreign \| Level 1, 2 and 3 \| Equity funds
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	129	194
Foreign \| Level 1, 2 and 3 \| Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	1,091	418
Foreign \| Level 1, 2 and 3 \| Cash
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	20	356
Foreign \| Level 1
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	20	356
Foreign \| Level 1 \| Sovereign government obligations
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	0	0
Foreign \| Level 1 \| Equity funds
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	0	0
Foreign \| Level 1 \| Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	0	0
Foreign \| Level 1 \| Cash
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	20	356
Foreign \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	1,350	738
Foreign \| Level 2 \| Sovereign government obligations
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	130	126
Foreign \| Level 2 \| Equity funds
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	129	194
Foreign \| Level 2 \| Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	1,091	418
Foreign \| Level 2 \| Cash
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	0	0
Foreign \| Level 3
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	0	0
Foreign \| Level 3 \| Sovereign government obligations
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	0	0
Foreign \| Level 3 \| Equity funds
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	0	0
Foreign \| Level 3 \| Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	0	0
Foreign \| Level 3 \| Cash
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	0	0
Foreign \| NAV \| Other assets measured at NAV
Defined Benefit Plan Disclosure [Line Items]
Plan assets, at fair value	$ 159	$ 222

Employee benefit plans - Pens_3

Employee benefit plans - Pension Plan Assets Valued Using Net Asset Value (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Minimum \| Funds of funds
Defined Benefit Plan Disclosure [Line Items]
Redemption notice period	30 days	30 days
Minimum \| Property funds
Defined Benefit Plan Disclosure [Line Items]
Redemption notice period	0 days	0 days
Maximum \| Funds of funds
Defined Benefit Plan Disclosure [Line Items]
Redemption notice period	45 days	45 days
Maximum \| Property funds
Defined Benefit Plan Disclosure [Line Items]
Redemption notice period	90 days	90 days
NAV
Defined Benefit Plan Disclosure [Line Items]
Fair value	$ 320	$ 382
Unfunded commitments	0	0
NAV \| Funds of funds
Defined Benefit Plan Disclosure [Line Items]
Fair value	136	147
Unfunded commitments	$ 0	$ 0
Redemption frequency	Monthly	Monthly
NAV \| Venture capital and partnership interests
Defined Benefit Plan Disclosure [Line Items]
Fair value	$ 158	$ 148
Unfunded commitments	0	0
NAV \| Property funds
Defined Benefit Plan Disclosure [Line Items]
Fair value	4	52
Unfunded commitments	$ 0	$ 0
Redemption frequency	Monthly	Monthly
NAV \| Corporate debt
Defined Benefit Plan Disclosure [Line Items]
Fair value		$ 19
Unfunded commitments		0
NAV \| Other contracts
Defined Benefit Plan Disclosure [Line Items]
Fair value	$ 22	16
Unfunded commitments	$ 0	$ 0

Company financial information_3

Company financial information (Parent Corporation) - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Jun. 30, 2019
Condensed Financial Statements, Captions [Line Items]
Dividend payments without regulatory approval	$ 1,100,000,000
Liquid asset held, amount	1,800,000,000
Average reserve balances with federal reserve banks	$ 6,800,000,000	$ 6,100,000,000
Minimum
Condensed Financial Statements, Captions [Line Items]
Collateral percentage requirement for bank loans to affiliates	100.00%
Maximum
Condensed Financial Statements, Captions [Line Items]
Collateral percentage requirement for bank loans to affiliates	130.00%
A2019 Capital Plan
Condensed Financial Statements, Captions [Line Items]
Authorized amount of shares to repurchase				$ 3,940,000,000
Credit Extensions To Affiliates
Condensed Financial Statements, Captions [Line Items]
Maximum percentage of regulatory capital allowable for bank credit extensions	10.00%
Credit Extensions In Aggregate To Bank Of New York And All Affiliates
Condensed Financial Statements, Captions [Line Items]
Maximum percentage of regulatory capital allowable for bank credit extensions	20.00%
Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Common stock, dividends declared	$ 3,200,000,000	$ 3,800,000,000	$ 1,300,000,000

Company financial information_4

Company financial information (Parent Corporation) - Income Statement (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Condensed Income Statements, Captions [Line Items]
Total revenue	$ 16,462	$ 16,392	$ 15,543
Interest expense (including, $64, $59, $73, to subsidiaries, respectively)	4,360	2,821	1,074
(Benefit) for income taxes	1,120	938	496
Net income applicable to shareholders of The Bank of New York Mellon Corporation	4,441	4,266	4,090
Preferred stock dividends	(169)	(169)	(175)
Net income applicable to common shareholders of The Bank of New York Mellon Corporation	4,272	4,097	3,915
Parent Company
Condensed Income Statements, Captions [Line Items]
(Loss) gain on securities held for sale	(11)	1	0
Other revenue	39	36	67
Total revenue	5,469	5,993	2,050
Interest expense (including, $64, $59, $73, to subsidiaries, respectively)	941	658	663
Other expense	197	439	254
Total expense	1,138	1,097	917
Income before income taxes and equity in undistributed net income of subsidiaries	4,331	4,896	1,133
(Benefit) for income taxes	(208)	(165)	(526)
Equity in undistributed net income	(98)	(795)	2,431
Net income applicable to shareholders of The Bank of New York Mellon Corporation	4,441	4,266	4,090
Preferred stock dividends	(169)	(169)	(175)
Net income applicable to common shareholders of The Bank of New York Mellon Corporation	4,272	4,097	3,915
Interest expense, related party	64	59	73
Parent Company \| Bank Subsidiaries
Condensed Income Statements, Captions [Line Items]
Dividends from subsidiaries	3,209	3,874	1,405
Interest revenue from subsidiaries	4	13	25
Equity in undistributed net income	(139)	(508)	1,524
Parent Company \| Nonbank Subsidiaries
Condensed Income Statements, Captions [Line Items]
Dividends from subsidiaries	2,075	1,869	382
Interest revenue from subsidiaries	153	200	171
Equity in undistributed net income	$ 41	$ (287)	$ 907

Company financial information_5

Company financial information (Parent Corporation) - Balance Sheet (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Condensed Balance Sheet Statements, Captions [Line Items]
Corporate-owned life insurance	$ 5,219	$ 4,937
Other assets	20,221	21,298
Total assets	381,508	362,873	$ 371,758
Long-term debt	27,501	29,163
Total liabilities	339,780	322,005
Shareholders’ equity	41,483	40,638
Total liabilities, temporary equity and permanent equity	381,508	362,873
Parent Company
Condensed Balance Sheet Statements, Captions [Line Items]
Cash and due from banks	345	909
Securities	8	27
Investment in and advances to subsidiaries and associated companies:	69,459	69,271
Corporate-owned life insurance	773	761
Other assets	319	740
Total assets	70,904	71,708
Deferred compensation	455	445
Affiliate borrowings	1,500	1,616
Other liabilities	1,631	1,246
Long-term debt	25,835	27,763
Total liabilities	29,421	31,070
Shareholders’ equity	41,483	40,638
Total liabilities, temporary equity and permanent equity	70,904	71,708
Parent Company \| Bank Subsidiaries
Condensed Balance Sheet Statements, Captions [Line Items]
Investment in and advances to subsidiaries and associated companies:	32,511	31,285
Parent Company \| Nonbank Subsidiaries
Condensed Balance Sheet Statements, Captions [Line Items]
Investment in and advances to subsidiaries and associated companies:	$ 36,948	$ 37,986

Company financial information_6

Company financial information (Parent Corporation) - Cash Flows (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Operating activities
Income from consolidated investment management funds, net of noncontrolling interests	$ 4,441	$ 4,266	$ 4,090
Adjustments to reconcile net income to net cash provided by operating activities:
Net cash provided by operating activities	96	5,996	4,667
Investing activities
Other, net	676	(153)	(231)
Net cash (used for) provided by investing activities	(10,548)	3,299	(32,705)
Financing activities
Net proceeds from the issuance of long-term debt	2,993	5,143	4,738
Repayments of long-term debt	(5,250)	(3,650)	(1,046)
Issuance of common stock	21	40	34
Treasury stock acquired	(3,327)	(3,269)	(2,686)
Net cash provided by (used for) financing activities	9,459	(8,098)	26,778
Change in cash and due from banks and restricted cash	(991)	1,125	(1,071)
Cash and due from banks and restricted cash at beginning of year	8,258	7,133	8,204
Cash and due from banks and restricted cash at end of year	7,267	8,258	7,133
Supplemental disclosures
Interest paid	4,400	2,711	1,033
Income taxes paid	989	983	498
Income taxes refunded	669	175	20
Parent Company
Operating activities
Income from consolidated investment management funds, net of noncontrolling interests	4,441	4,266	4,090
Adjustments to reconcile net income to net cash provided by operating activities:
Equity in undistributed net loss (income) of subsidiaries	98	795	(2,431)
Change in accrued interest receivable	(12)	27	(6)
Change in accrued interest payable	(17)	29	42
Change in taxes payable	331	224	(600)
Other, net	(107)	(257)	38
Net cash provided by operating activities	4,734	5,084	1,133
Investing activities
Purchases of securities	0	0	(991)
Proceeds from sales of securities	0	13	2,729
Change in loans	0	0	7
Acquisitions of, investments in, and advances to subsidiaries (b)	1,495	(53)	(7,208)
Other, net	0	1	0
Net cash (used for) provided by investing activities	1,495	(39)	(5,463)
Financing activities
Net proceeds from the issuance of long-term debt	1,745	4,144	4,738
Repayments of long-term debt	(4,250)	(3,650)	(997)
Change in advances from subsidiaries	242	(1,561)	(3,930)
Issuance of common stock	86	120	465
Treasury stock acquired	(3,327)	(3,269)	(2,686)
Cash dividends paid	(1,289)	(1,221)	(1,076)
Net cash provided by (used for) financing activities	(6,793)	(5,437)	(3,486)
Change in cash and due from banks and restricted cash	(564)	(392)	(7,816)
Cash and due from banks and restricted cash at beginning of year	909	1,301	9,117
Cash and due from banks and restricted cash at end of year	345	909	1,301
Supplemental disclosures
Interest paid	958	629	705
Income taxes paid	2	12	61
Income taxes refunded	0	7	15
Payments received from subsidiaries for taxes	823	837	189
Payments for acquisition of investments in and advances to subsidiaries	(2,139)	(2,807)	(10,296)
Proceeds from sale of investments in and advances from subsidiaries	$ 3,634	$ 2,754	$ 3,088

Fair value measurement - Assets

Fair value measurement - Assets and Liabilities on Recurring Basis (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	$ 88,550,000,000	$ 85,809,000,000
Percentage of securities valued with reasonable level of price transparency	99.00%
Trading assets:
Total derivatives fair value	$ 9,061,000,000	8,754,000,000
Effect of master netting agreements	(5,819,000,000)	(5,939,000,000)
Total derivative assets	3,242,000,000	2,815,000,000
Trading liabilities:
Total derivatives fair value	9,206,000,000	8,538,000,000
Effect of master netting agreements	(5,415,000,000)	(6,170,000,000)
Derivative liabilities	3,791,000,000	2,368,000,000
Long-term debt	387,000,000	371,000,000
Investment management funds
Trading assets:
Trading assets	229,000,000	243,000,000
Other assets	16,000,000	220,000,000
Total assets	245,000,000	463,000,000
Trading liabilities:
Total liabilities	1,000,000	2,000,000
Interest rate contracts
Trading assets:
Effect of master netting agreements	(1,792,000,000)	(2,202,000,000)
Trading liabilities:
Effect of master netting agreements	(1,986,000,000)	(2,508,000,000)
Foreign exchange contracts
Trading assets:
Effect of master netting agreements	(4,021,000,000)	(3,724,000,000)
Trading liabilities:
Effect of master netting agreements	(3,428,000,000)	(3,626,000,000)
Equity contracts
Trading assets:
Effect of master netting agreements	(6,000,000)	(13,000,000)
Trading liabilities:
Effect of master netting agreements	(1,000,000)	(36,000,000)
Agency RMBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	27,043,000,000	25,308,000,000
U.S. Treasury
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	15,431,000,000	20,076,000,000
Sovereign debt/sovereign guaranteed
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	12,646,000,000	10,750,000,000
Agency commercial mortgage-backed securities (“MBS”)
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	9,417,000,000	9,691,000,000
Foreign covered bonds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	4,197,000,000	2,878,000,000
CLOs
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	4,063,000,000	3,364,000,000
Supranational
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	3,709,000,000	2,984,000,000
Other ABS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	2,143,000,000	1,773,000,000
U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	1,949,000,000	1,657,000,000
Non-agency RMBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	1,233,000,000	1,325,000,000
State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	1,044,000,000	2,247,000,000
Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	853,000,000	1,054,000,000
Other debt securities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	1,000,000	77,000,000
Not designated as hedging
Trading assets:
Total derivatives fair value	9,040,000,000	8,465,000,000
Trading liabilities:
Total derivatives fair value	8,599,000,000	8,450,000,000
Not designated as hedging \| Interest rate contracts
Trading assets:
Total derivatives fair value	3,690,000,000	3,590,000,000
Trading liabilities:
Total derivatives fair value	3,250,000,000	3,116,000,000
Not designated as hedging \| Foreign exchange contracts
Trading assets:
Total derivatives fair value	5,331,000,000	4,807,000,000
Trading liabilities:
Total derivatives fair value	5,340,000,000	5,215,000,000
Not designated as hedging \| Equity contracts
Trading assets:
Total derivatives fair value	19,000,000	68,000,000
Trading liabilities:
Total derivatives fair value	5,000,000	118,000,000
Designated as hedging
Trading assets:
Total derivatives fair value	21,000,000	289,000,000
Trading liabilities:
Total derivatives fair value	607,000,000	88,000,000
Designated as hedging \| Interest rate contracts
Trading assets:
Total derivatives fair value	0	23,000,000
Trading liabilities:
Total derivatives fair value	350,000,000	74,000,000
Designated as hedging \| Foreign exchange contracts
Trading assets:
Total derivatives fair value	21,000,000	266,000,000
Trading liabilities:
Total derivatives fair value	257,000,000	14,000,000
Operating segments
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	88,550,000,000	85,809,000,000
Trading assets:
Trading assets	13,571,000,000	7,035,000,000
Other assets	419,000,000	742,000,000
Trading liabilities:
Long-term debt	387,000,000	371,000,000
Operating segments \| Investment management funds
Trading assets:
Total assets	245,000,000	463,000,000
Trading liabilities:
Total liabilities	1,000,000	2,000,000
Assets measured at fair value on a recurring basis
Trading assets:
Effect of master netting agreements	(5,819,000,000)	(5,939,000,000)
Total assets	102,785,000,000	94,049,000,000
Trading liabilities:
Effect of master netting agreements	(5,415,000,000)	(6,170,000,000)
Total liabilities	5,836,000,000	3,940,000,000
Assets measured at fair value on a recurring basis \| Level 1
Trading assets:
Total assets	$ 29,576,000,000	$ 28,898,000,000
Percentage of total assets prior to netting	27.00%	29.00%
Trading liabilities:
Total liabilities	$ 1,560,000,000	$ 1,096,000,000
Percentage of total liabilities prior to netting	14.00%	11.00%
Assets measured at fair value on a recurring basis \| Level 2
Trading assets:
Total assets	$ 78,847,000,000	$ 70,875,000,000
Percentage of total assets prior to netting	73.00%	71.00%
Trading liabilities:
Total liabilities	$ 9,691,000,000	$ 9,014,000,000
Percentage of total liabilities prior to netting	86.00%	89.00%
Assets measured at fair value on a recurring basis \| Level 2 \| Grantor Trust
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	$ 640,000,000	$ 832,000,000
Assets measured at fair value on a recurring basis \| Level 3
Trading assets:
Total assets	$ 0	$ 0
Percentage of total assets prior to netting	0.00%	0.00%
Trading liabilities:
Total liabilities	$ 0	$ 0
Percentage of total liabilities prior to netting	0.00%	0.00%
Assets measured at fair value on a recurring basis \| Operating segments
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	$ 88,550,000,000	$ 85,809,000,000
Trading assets:
Debt instruments	5,811,000,000	3,395,000,000
Equity instruments	4,539,000,000	1,114,000,000
Effect of master netting agreements	(5,819,000,000)	(5,939,000,000)
Trading assets	13,571,000,000	7,035,000,000
Other assets	217,000,000	238,000,000
Total assets	102,540,000,000	93,586,000,000
Trading liabilities:
Total trading liabilities	4,841,000,000	3,479,000,000
Effect of master netting agreements	(5,415,000,000)	(6,170,000,000)
Long-term debt	387,000,000	371,000,000
Total other liabilities – derivative liabilities designated as hedging	607,000,000
Total liabilities	5,835,000,000	3,938,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Investment management funds
Trading assets:
Total assets	245,000,000	463,000,000
Trading liabilities:
Total liabilities	1,000,000	2,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Interest rate contracts
Trading assets:
Effect of master netting agreements	(1,792,000,000)	(2,202,000,000)
Trading liabilities:
Effect of master netting agreements	(1,986,000,000)	(2,508,000,000)
Assets measured at fair value on a recurring basis \| Operating segments \| Foreign exchange contracts
Trading assets:
Effect of master netting agreements	(4,021,000,000)	(3,724,000,000)
Trading liabilities:
Effect of master netting agreements	(3,428,000,000)	(3,626,000,000)
Assets measured at fair value on a recurring basis \| Operating segments \| Equity contracts
Trading assets:
Effect of master netting agreements	(6,000,000)	(13,000,000)
Trading liabilities:
Effect of master netting agreements	(1,000,000)	(36,000,000)
Assets measured at fair value on a recurring basis \| Operating segments \| Agency RMBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	27,043,000,000	25,308,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| U.S. Treasury
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	15,431,000,000	20,076,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Sovereign debt/sovereign guaranteed
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	12,646,000,000	10,750,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Agency commercial mortgage-backed securities (“MBS”)
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	9,417,000,000	9,691,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Foreign covered bonds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	4,197,000,000	2,878,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| CLOs
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	4,063,000,000	3,364,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Supranational
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	3,709,000,000	2,984,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Foreign government agencies
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	2,643,000,000	1,161,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Non-agency commercial MBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	2,178,000,000	1,464,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Other ABS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	2,143,000,000	1,773,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	1,949,000,000	1,657,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Non-agency RMBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	1,233,000,000	1,325,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	1,044,000,000	2,247,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	853,000,000	1,054,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Other debt securities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	1,000,000	77,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Not designated as hedging
Trading assets:
Total derivative assets	3,221,000,000	2,526,000,000
Trading liabilities:
Effect of master netting agreements	(5,415,000,000)
Derivative liabilities	3,184,000,000	2,280,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Not designated as hedging \| Interest rate contracts
Trading assets:
Total derivative assets	1,898,000,000	1,388,000,000
Trading liabilities:
Derivative liabilities	1,264,000,000	608,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Not designated as hedging \| Foreign exchange contracts
Trading assets:
Total derivative assets	1,310,000,000	1,083,000,000
Trading liabilities:
Derivative liabilities	1,912,000,000	1,589,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Not designated as hedging \| Equity contracts
Trading assets:
Total derivative assets	13,000,000	55,000,000
Trading liabilities:
Derivative liabilities	8,000,000	83,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Designated as hedging
Trading assets:
Total derivative assets	21,000,000	289,000,000
Trading liabilities:
Total other liabilities – derivative liabilities designated as hedging		88,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Designated as hedging \| Interest rate contracts
Trading assets:
Total derivative assets		23,000,000
Trading liabilities:
Derivative liabilities	350,000,000	74,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Designated as hedging \| Foreign exchange contracts
Trading assets:
Total derivative assets	21,000,000	266,000,000
Trading liabilities:
Derivative liabilities	257,000,000	14,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Debt instruments
Trading liabilities:
Total trading liabilities	1,584,000,000	1,124,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Equity instruments
Trading liabilities:
Total trading liabilities	73,000,000	75,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	23,215,000,000	26,689,000,000
Trading assets:
Debt instruments	1,568,000,000	801,000,000
Equity instruments	4,539,000,000	1,114,000,000
Trading assets	6,111,000,000	1,931,000,000
Other assets	38,000,000	68,000,000
Total assets	$ 29,364,000,000	$ 28,688,000,000
Percentage of total assets prior to netting	27.00%	29.00%
Trading liabilities:
Total trading liabilities	$ 1,559,000,000	$ 1,094,000,000
Long-term debt	0	0
Total other liabilities – derivative liabilities designated as hedging	0
Total liabilities	$ 1,559,000,000	$ 1,094,000,000
Percentage of total liabilities prior to netting	14.00%	11.00%
Assets measured at fair value on a recurring basis \| Operating segments \| Level 1 \| Investment management funds
Trading assets:
Total assets	$ 212,000,000	$ 210,000,000
Trading liabilities:
Total liabilities	1,000,000	2,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Level 1 \| Agency RMBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 1 \| U.S. Treasury
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	15,431,000,000	20,076,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Level 1 \| Sovereign debt/sovereign guaranteed
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	7,784,000,000	6,613,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Level 1 \| Agency commercial mortgage-backed securities (“MBS”)
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 1 \| Foreign covered bonds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 1 \| CLOs
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 1 \| Supranational
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 1 \| Foreign government agencies
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 1 \| Non-agency commercial MBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 1 \| Other ABS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 1 \| U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 1 \| Non-agency RMBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 1 \| State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 1 \| Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 1 \| Other debt securities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 1 \| Not designated as hedging
Trading assets:
Total derivatives fair value	4,000,000	16,000,000
Trading liabilities:
Total derivatives fair value	9,000,000	13,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Level 1 \| Not designated as hedging \| Interest rate contracts
Trading assets:
Total derivatives fair value	4,000,000	7,000,000
Trading liabilities:
Total derivatives fair value	6,000,000	12,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Level 1 \| Not designated as hedging \| Foreign exchange contracts
Trading assets:
Total derivatives fair value	0	0
Trading liabilities:
Total derivatives fair value	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 1 \| Not designated as hedging \| Equity contracts
Trading assets:
Total derivatives fair value	0	9,000,000
Trading liabilities:
Total derivatives fair value	3,000,000	1,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Level 1 \| Designated as hedging
Trading assets:
Total derivatives fair value	0	0
Trading liabilities:
Total other liabilities – derivative liabilities designated as hedging		0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 1 \| Designated as hedging \| Interest rate contracts
Trading assets:
Total derivatives fair value		0
Trading liabilities:
Total derivatives fair value	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 1 \| Designated as hedging \| Foreign exchange contracts
Trading assets:
Total derivatives fair value	0	0
Trading liabilities:
Total derivatives fair value	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 1 \| Debt instruments
Trading liabilities:
Total trading liabilities	1,477,000,000	1,006,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Level 1 \| Equity instruments
Trading liabilities:
Total trading liabilities	73,000,000	75,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	65,335,000,000	59,120,000,000
Trading assets:
Debt instruments	4,243,000,000	2,594,000,000
Equity instruments	0	0
Trading assets	13,279,000,000	11,043,000,000
Other assets	179,000,000	170,000,000
Total assets	$ 78,814,000,000	$ 70,622,000,000
Percentage of total assets prior to netting	73.00%	71.00%
Trading liabilities:
Total trading liabilities	$ 8,697,000,000	$ 8,555,000,000
Long-term debt	387,000,000	371,000,000
Total other liabilities – derivative liabilities designated as hedging	607,000,000
Total liabilities	$ 9,691,000,000	$ 9,014,000,000
Percentage of total liabilities prior to netting	86.00%	89.00%
Assets measured at fair value on a recurring basis \| Operating segments \| Level 2 \| Investment management funds
Trading assets:
Total assets	$ 33,000,000	$ 253,000,000
Trading liabilities:
Total liabilities	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 2 \| Agency RMBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	27,043,000,000	25,308,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Level 2 \| U.S. Treasury
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 2 \| Sovereign debt/sovereign guaranteed
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	4,862,000,000	4,137,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Level 2 \| Agency commercial mortgage-backed securities (“MBS”)
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	9,417,000,000	9,691,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Level 2 \| Foreign covered bonds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	4,197,000,000	2,878,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Level 2 \| CLOs
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	4,063,000,000	3,364,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Level 2 \| Supranational
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	3,709,000,000	2,984,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Level 2 \| Foreign government agencies
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	2,643,000,000	1,161,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Level 2 \| Non-agency commercial MBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	2,178,000,000	1,464,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Level 2 \| Other ABS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	2,143,000,000	1,773,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Level 2 \| U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	1,949,000,000	1,657,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Level 2 \| Non-agency RMBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	1,233,000,000	1,325,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Level 2 \| State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	1,044,000,000	2,247,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Level 2 \| Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	853,000,000	1,054,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Level 2 \| Other debt securities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	1,000,000	77,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Level 2 \| Not designated as hedging
Trading assets:
Total derivatives fair value	9,036,000,000	8,449,000,000
Trading liabilities:
Total derivatives fair value	8,590,000,000	8,437,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Level 2 \| Not designated as hedging \| Interest rate contracts
Trading assets:
Total derivatives fair value	3,686,000,000	3,583,000,000
Trading liabilities:
Total derivatives fair value	3,244,000,000	3,104,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Level 2 \| Not designated as hedging \| Foreign exchange contracts
Trading assets:
Total derivatives fair value	5,331,000,000	4,807,000,000
Trading liabilities:
Total derivatives fair value	5,340,000,000	5,215,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Level 2 \| Not designated as hedging \| Equity contracts
Trading assets:
Total derivatives fair value	19,000,000	59,000,000
Trading liabilities:
Total derivatives fair value	6,000,000	118,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Level 2 \| Designated as hedging
Trading assets:
Total derivatives fair value	21,000,000	289,000,000
Trading liabilities:
Total other liabilities – derivative liabilities designated as hedging		88,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Level 2 \| Designated as hedging \| Interest rate contracts
Trading assets:
Total derivatives fair value		23,000,000
Trading liabilities:
Total derivatives fair value	350,000,000	74,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Level 2 \| Designated as hedging \| Foreign exchange contracts
Trading assets:
Total derivatives fair value	21,000,000	266,000,000
Trading liabilities:
Total derivatives fair value	257,000,000	14,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Level 2 \| Debt instruments
Trading liabilities:
Total trading liabilities	107,000,000	118,000,000
Assets measured at fair value on a recurring basis \| Operating segments \| Level 2 \| Equity instruments
Trading liabilities:
Total trading liabilities	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	0	0
Trading assets:
Debt instruments	0	0
Equity instruments	0	0
Trading assets	0	0
Other assets	0	0
Total assets	$ 0	$ 0
Percentage of total assets prior to netting	0.00%	0.00%
Trading liabilities:
Total trading liabilities	$ 0	$ 0
Long-term debt	0	0
Total other liabilities – derivative liabilities designated as hedging	0
Total liabilities	$ 0	$ 0
Percentage of total liabilities prior to netting	0.00%	0.00%
Assets measured at fair value on a recurring basis \| Operating segments \| Level 3 \| Investment management funds
Trading assets:
Total assets	$ 0	$ 0
Trading liabilities:
Total liabilities	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 3 \| Agency RMBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 3 \| U.S. Treasury
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 3 \| Sovereign debt/sovereign guaranteed
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 3 \| Agency commercial mortgage-backed securities (“MBS”)
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 3 \| Foreign covered bonds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 3 \| CLOs
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 3 \| Supranational
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 3 \| Foreign government agencies
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 3 \| Non-agency commercial MBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 3 \| Other ABS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 3 \| U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 3 \| Non-agency RMBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 3 \| State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 3 \| Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 3 \| Other debt securities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 3 \| Not designated as hedging
Trading assets:
Total derivatives fair value	0	0
Total derivative assets	0
Trading liabilities:
Total derivatives fair value	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 3 \| Not designated as hedging \| Interest rate contracts
Trading assets:
Total derivatives fair value	0	0
Trading liabilities:
Total derivatives fair value	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 3 \| Not designated as hedging \| Foreign exchange contracts
Trading assets:
Total derivatives fair value	0	0
Trading liabilities:
Total derivatives fair value	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 3 \| Not designated as hedging \| Equity contracts
Trading assets:
Total derivatives fair value	0	0
Trading liabilities:
Total derivatives fair value	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 3 \| Designated as hedging
Trading assets:
Total derivatives fair value	0	0
Trading liabilities:
Total other liabilities – derivative liabilities designated as hedging		0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 3 \| Designated as hedging \| Interest rate contracts
Trading assets:
Total derivatives fair value		0
Trading liabilities:
Total derivatives fair value	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 3 \| Designated as hedging \| Foreign exchange contracts
Trading assets:
Total derivatives fair value	0	0
Trading liabilities:
Total derivatives fair value	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 3 \| Debt instruments
Trading liabilities:
Total trading liabilities	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| Level 3 \| Equity instruments
Trading liabilities:
Total trading liabilities	0	0
Assets measured at fair value on a recurring basis \| Operating segments \| NAV
Trading assets:
Assets measured at NAV	$ 181,000,000	$ 215,000,000

Fair value measurement - Certai

Fair value measurement - Certain Items on Recurring Basis (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Increase (Decrease) In Fair Value Of Loans Measured On Nonrecurring Basis Based On Fair Value Of Underlying Collateral	$ (1)	$ (1)
Assets measured at fair value on a recurring basis \| Non-agency RMBS \| Origination in 2004 and Earlier, 2005, 2006 and 2007 through 2019
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	640	832
Non-agency RMBS \| Assets measured at fair value on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 1,233	$ 1,325
Non-agency RMBS \| Assets measured at fair value on a recurring basis \| AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	25.00%	9.00%
Non-agency RMBS \| Assets measured at fair value on a recurring basis \| A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	9.00%	11.00%
Non-agency RMBS \| Assets measured at fair value on a recurring basis \| BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	3.00%	5.00%
Non-agency RMBS \| Assets measured at fair value on a recurring basis \| BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	63.00%	75.00%
Non-agency RMBS \| Assets measured at fair value on a recurring basis \| 2007-2019
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 464	$ 315
Non-agency RMBS \| Assets measured at fair value on a recurring basis \| 2007-2019 \| AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	55.00%	15.00%
Non-agency RMBS \| Assets measured at fair value on a recurring basis \| 2007-2019 \| A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	1.00%	2.00%
Non-agency RMBS \| Assets measured at fair value on a recurring basis \| 2007-2019 \| BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	3.00%
Non-agency RMBS \| Assets measured at fair value on a recurring basis \| 2007-2019 \| BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	44.00%	80.00%
Non-agency RMBS \| Assets measured at fair value on a recurring basis \| 2006
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 291	$ 363
Non-agency RMBS \| Assets measured at fair value on a recurring basis \| 2006 \| AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Non-agency RMBS \| Assets measured at fair value on a recurring basis \| 2006 \| A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	21.00%	19.00%
Non-agency RMBS \| Assets measured at fair value on a recurring basis \| 2006 \| BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Non-agency RMBS \| Assets measured at fair value on a recurring basis \| 2006 \| BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	79.00%	81.00%
Non-agency RMBS \| Assets measured at fair value on a recurring basis \| 2005
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 305	$ 396
Non-agency RMBS \| Assets measured at fair value on a recurring basis \| 2005 \| AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	5.00%	9.00%
Non-agency RMBS \| Assets measured at fair value on a recurring basis \| 2005 \| A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	2.00%	1.00%
Non-agency RMBS \| Assets measured at fair value on a recurring basis \| 2005 \| BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	8.00%	7.00%
Non-agency RMBS \| Assets measured at fair value on a recurring basis \| 2005 \| BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	85.00%	83.00%
Non-agency RMBS \| Assets measured at fair value on a recurring basis \| 2004 and earlier
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 173	$ 251
Non-agency RMBS \| Assets measured at fair value on a recurring basis \| 2004 and earlier \| AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	22.00%	16.00%
Non-agency RMBS \| Assets measured at fair value on a recurring basis \| 2004 and earlier \| A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	24.00%	24.00%
Non-agency RMBS \| Assets measured at fair value on a recurring basis \| 2004 and earlier \| BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	4.00%	11.00%
Non-agency RMBS \| Assets measured at fair value on a recurring basis \| 2004 and earlier \| BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	50.00%	49.00%
Non-agency commercial MBS \| Assets measured at fair value on a recurring basis \| 2009-2019 \| Domestic
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 2,178	$ 1,464
Non-agency commercial MBS \| Assets measured at fair value on a recurring basis \| 2009-2019 \| AAA/ AA- \| Domestic
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	98.00%	96.00%
Non-agency commercial MBS \| Assets measured at fair value on a recurring basis \| 2009-2019 \| A/ A- \| Domestic
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	2.00%	4.00%
Non-agency commercial MBS \| Assets measured at fair value on a recurring basis \| 2009-2019 \| BBB/ BBB- \| Domestic
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Non-agency commercial MBS \| Assets measured at fair value on a recurring basis \| 2009-2019 \| BB and lower \| Domestic
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds \| Assets measured at fair value on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 4,197	$ 2,878
Foreign covered bonds \| Assets measured at fair value on a recurring basis \| AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Foreign covered bonds \| Assets measured at fair value on a recurring basis \| A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds \| Assets measured at fair value on a recurring basis \| BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds \| Assets measured at fair value on a recurring basis \| BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds \| Assets measured at fair value on a recurring basis \| Canada
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 1,798	$ 1,524
Foreign covered bonds \| Assets measured at fair value on a recurring basis \| Canada \| AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Foreign covered bonds \| Assets measured at fair value on a recurring basis \| Canada \| A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds \| Assets measured at fair value on a recurring basis \| Canada \| BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds \| Assets measured at fair value on a recurring basis \| Canada \| BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds \| Assets measured at fair value on a recurring basis \| UK
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 984	$ 529
Foreign covered bonds \| Assets measured at fair value on a recurring basis \| UK \| AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Foreign covered bonds \| Assets measured at fair value on a recurring basis \| UK \| A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds \| Assets measured at fair value on a recurring basis \| UK \| BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds \| Assets measured at fair value on a recurring basis \| UK \| BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds \| Assets measured at fair value on a recurring basis \| Australia
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 431	$ 333
Foreign covered bonds \| Assets measured at fair value on a recurring basis \| Australia \| AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Foreign covered bonds \| Assets measured at fair value on a recurring basis \| Australia \| A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds \| Assets measured at fair value on a recurring basis \| Australia \| BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds \| Assets measured at fair value on a recurring basis \| Australia \| BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds \| Assets measured at fair value on a recurring basis \| Germany
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 357	$ 0
Foreign covered bonds \| Assets measured at fair value on a recurring basis \| Germany \| AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	0.00%
Foreign covered bonds \| Assets measured at fair value on a recurring basis \| Germany \| A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds \| Assets measured at fair value on a recurring basis \| Germany \| BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds \| Assets measured at fair value on a recurring basis \| Germany \| BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds \| Assets measured at fair value on a recurring basis \| Norway
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 287	$ 150
Foreign covered bonds \| Assets measured at fair value on a recurring basis \| Norway \| AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Foreign covered bonds \| Assets measured at fair value on a recurring basis \| Norway \| A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds \| Assets measured at fair value on a recurring basis \| Norway \| BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds \| Assets measured at fair value on a recurring basis \| Norway \| BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds \| Assets measured at fair value on a recurring basis \| Other
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 340	$ 342
Foreign covered bonds \| Assets measured at fair value on a recurring basis \| Other \| AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Foreign covered bonds \| Assets measured at fair value on a recurring basis \| Other \| A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds \| Assets measured at fair value on a recurring basis \| Other \| BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds \| Assets measured at fair value on a recurring basis \| Other \| BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 12,646	$ 10,750
Sovereign Debt \| Assets measured at fair value on a recurring basis \| AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	73.00%	72.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	5.00%	6.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	21.00%	21.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	1.00%	1.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| UK
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 3,318	$ 2,153
Sovereign Debt \| Assets measured at fair value on a recurring basis \| UK \| AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| UK \| A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| UK \| BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| UK \| BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Germany
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 1,997	$ 1,826
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Germany \| AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Germany \| A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Germany \| BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Germany \| BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Spain
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 1,453	$ 1,365
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Spain \| AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Spain \| A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	6.00%	0.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Spain \| BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	94.00%	100.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Spain \| BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| France
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 1,272	$ 1,548
Sovereign Debt \| Assets measured at fair value on a recurring basis \| France \| AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| France \| A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| France \| BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| France \| BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Italy
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 1,260	$ 939
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Italy \| AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Italy \| A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Italy \| BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Italy \| BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Netherlands
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 791	$ 875
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Netherlands \| AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Netherlands \| A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Netherlands \| BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Netherlands \| BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Singapore
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 742	$ 165
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Singapore \| AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Singapore \| A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Singapore \| BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Singapore \| BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Hong Kong
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 411	$ 450
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Hong Kong \| AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Hong Kong \| A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Hong Kong \| BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Hong Kong \| BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Ireland
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 301	$ 625
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Ireland \| AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Ireland \| A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Ireland \| BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Ireland \| BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Other
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 1,101	$ 804
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Other \| AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	62.00%	87.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Other \| A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	26.00%	0.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Other \| BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt \| Assets measured at fair value on a recurring basis \| Other \| BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	12.00%	13.00%
Foreign government agencies \| Assets measured at fair value on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 2,643	$ 1,161
Foreign government agencies \| Assets measured at fair value on a recurring basis \| AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	95.00%	100.00%
Foreign government agencies \| Assets measured at fair value on a recurring basis \| A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	5.00%	0.00%
Foreign government agencies \| Assets measured at fair value on a recurring basis \| BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign government agencies \| Assets measured at fair value on a recurring basis \| BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign government agencies \| Assets measured at fair value on a recurring basis \| Germany
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 1,131	$ 401
Foreign government agencies \| Assets measured at fair value on a recurring basis \| Germany \| AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Foreign government agencies \| Assets measured at fair value on a recurring basis \| Germany \| A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign government agencies \| Assets measured at fair value on a recurring basis \| Germany \| BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign government agencies \| Assets measured at fair value on a recurring basis \| Germany \| BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign government agencies \| Assets measured at fair value on a recurring basis \| Netherlands
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 678	$ 461
Foreign government agencies \| Assets measured at fair value on a recurring basis \| Netherlands \| AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Foreign government agencies \| Assets measured at fair value on a recurring basis \| Netherlands \| A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign government agencies \| Assets measured at fair value on a recurring basis \| Netherlands \| BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign government agencies \| Assets measured at fair value on a recurring basis \| Netherlands \| BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign government agencies \| Assets measured at fair value on a recurring basis \| Other
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 589	$ 114
Foreign government agencies \| Assets measured at fair value on a recurring basis \| Other \| AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	78.00%	100.00%
Foreign government agencies \| Assets measured at fair value on a recurring basis \| Other \| A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	22.00%	0.00%
Foreign government agencies \| Assets measured at fair value on a recurring basis \| Other \| BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign government agencies \| Assets measured at fair value on a recurring basis \| Other \| BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign government agencies \| Assets measured at fair value on a recurring basis \| Finland
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 245	$ 185
Foreign government agencies \| Assets measured at fair value on a recurring basis \| Finland \| AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Foreign government agencies \| Assets measured at fair value on a recurring basis \| Finland \| A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign government agencies \| Assets measured at fair value on a recurring basis \| Finland \| BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign government agencies \| Assets measured at fair value on a recurring basis \| Finland \| BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Carrying amount \| Sovereign debt/sovereign guaranteed \| Assets measured at fair value on a recurring basis \| Sovereign debt/sovereign guaranteed \| Brazil
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 134	$ 107

Fair value measurement - Asse_2

Fair value measurement - Assets on Nonrecurring Basis (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Decrease in fair value of loans of underlying collateral	$ 1	$ 1
Measured at fair value on a nonrecurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	58	68
Other assets	64	57
Total assets	122	125
Measured at fair value on a nonrecurring basis \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0
Other assets	0	0
Total assets	0	0
Measured at fair value on a nonrecurring basis \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	58	64
Other assets	64	57
Total assets	122	121
Measured at fair value on a nonrecurring basis \| Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	4
Other assets	0	0
Total assets	$ 0	$ 4

Fair value measurement - Financ

Fair value measurement - Financial Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Assets:
Securities held-to-maturity	$ 34,805	$ 33,302
Liabilities:
Long-term debt	387	371
Estimated fair value
Assets:
Interest-bearing deposits with the Federal Reserve and other central banks	95,042	67,988
Interest-bearing deposits with banks	14,832	14,168
Federal funds sold and securities purchased under resale agreements	30,182	46,795
Securities held-to-maturity	34,805	33,302
Loans	54,194	55,142
Other financial assets	6,063	7,247
Total assets	235,118	224,642
Liabilities:
Noninterest-bearing deposits	57,630	70,783
Interest-bearing deposits	200,846	165,914
Federal funds purchased and securities sold under repurchase agreements	11,401	14,243
Payables to customers and broker-dealers	18,758	19,731
Commercial paper	3,959	1,939
Borrowings	917	3,584
Long-term debt	27,858	28,347
Total liabilities	321,369	304,541
Estimated fair value \| Level 1
Assets:
Interest-bearing deposits with the Federal Reserve and other central banks	0	0
Interest-bearing deposits with banks	0	0
Federal funds sold and securities purchased under resale agreements	0	0
Securities held-to-maturity	4,630	5,512
Loans	0	0
Other financial assets	4,830	5,864
Total assets	9,460	11,376
Liabilities:
Noninterest-bearing deposits	0	0
Interest-bearing deposits	0	0
Federal funds purchased and securities sold under repurchase agreements	0	0
Payables to customers and broker-dealers	0	0
Commercial paper	0	0
Borrowings	0	0
Long-term debt	0	0
Total liabilities	0	0
Estimated fair value \| Level 2
Assets:
Interest-bearing deposits with the Federal Reserve and other central banks	95,042	67,988
Interest-bearing deposits with banks	14,832	14,168
Federal funds sold and securities purchased under resale agreements	30,182	46,795
Securities held-to-maturity	30,175	27,790
Loans	54,194	55,142
Other financial assets	1,233	1,383
Total assets	225,658	213,266
Liabilities:
Noninterest-bearing deposits	57,630	70,783
Interest-bearing deposits	200,846	165,914
Federal funds purchased and securities sold under repurchase agreements	11,401	14,243
Payables to customers and broker-dealers	18,758	19,731
Commercial paper	3,959	1,939
Borrowings	917	3,584
Long-term debt	27,858	28,347
Total liabilities	321,369	304,541
Estimated fair value \| Level 3
Assets:
Interest-bearing deposits with the Federal Reserve and other central banks	0	0
Interest-bearing deposits with banks	0	0
Federal funds sold and securities purchased under resale agreements	0	0
Securities held-to-maturity	0	0
Loans	0	0
Other financial assets	0	0
Total assets	0	0
Liabilities:
Noninterest-bearing deposits	0	0
Interest-bearing deposits	0	0
Federal funds purchased and securities sold under repurchase agreements	0	0
Payables to customers and broker-dealers	0	0
Commercial paper	0	0
Borrowings	0	0
Long-term debt	0	0
Total liabilities	0	0
Carrying amount
Assets:
Interest-bearing deposits with the Federal Reserve and other central banks	95,042	67,988
Interest-bearing deposits with banks	14,811	14,148
Federal funds sold and securities purchased under resale agreements	30,182	46,795
Securities held-to-maturity	34,483	33,982
Loans	53,718	55,161
Other financial assets	6,063	7,247
Total assets	234,299	225,321
Liabilities:
Noninterest-bearing deposits	57,630	70,783
Interest-bearing deposits	201,836	167,995
Federal funds purchased and securities sold under repurchase agreements	11,401	14,243
Payables to customers and broker-dealers	18,758	19,731
Commercial paper	3,959	1,939
Borrowings	917	3,584
Long-term debt	27,114	28,792
Total liabilities	$ 321,615	$ 307,067

Fair value option - Assets and

Fair value option - Assets and Liabilities (Details) - Investment Management funds - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Assets of consolidated investment management funds:
Trading assets	$ 229	$ 243
Other assets, fair value	16	220
Total assets	245	463
Liabilities of consolidated investment management funds:
Other liabilities	1	2
Total liabilities	$ 1	$ 2

Fair value option - Narrative (

Fair value option - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Fair Value Disclosures [Abstract]
Fair value option of long-term debt	$ 240
Long-term debt, fair value	$ 387	$ 371

Fair value option - Changes in

Fair value option - Changes in Fair Value of Loans and Long-term Debt (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Long-term debt \| Foreign exchange and other trading revenue
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gain (loss) change in fair value	$ (16)	$ (4)	$ (4)

Commitments and contingent li_3

Commitments and contingent liabilities - Summary of Off-Balance Sheet Credit Risks, Net of Participations (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Securities lending indemnifications, joint venture	$ 57,000	$ 56,000
Invested in reverse repurchase agreements
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Cash collateral invested in indemnified repurchase agreements	37,000	35,000
Lending commitments
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet credit risks	49,119	50,631
Standby letters of credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet credit risks	2,298	2,817
Off-balance sheet credit risks participations	146	163
Commercial letters of credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet credit risks	74	165
Securities lending indemnifications
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet credit risks	$ 408,378	$ 401,504

Commitments and contingent li_4

Commitments and contingent liabilities - Narrative (Details)	Dec. 19, 2019claim	Dec. 17, 2015lawsuit	Dec. 31, 2019USD ($)claim	Dec. 31, 2018USD ($)	Dec. 31, 2009claim
Commitments and Contingencies Disclosure [Line Items]
Lending commitment maturing in less than one year			$ 31,000,000,000
Lending commitment maturing in one to five years			17,800,000,000
Lending commitment maturing over five years			$ 288,000,000
Collateralization percentage generally required for a securities lending transaction with indemnification against broker default			102.00%
Securities lending indemnifications, secured amount of collateral			$ 428,000,000,000	$ 420,000,000,000
Securities lending indemnifications, joint venture			57,000,000,000	56,000,000,000
Securities lending indemnifications, collateral joint venture			$ 61,000,000,000	59,000,000,000
Matters Related to R. Allen Stanford
Commitments and Contingencies Disclosure [Line Items]
Number of lawsuits or class actions pending \| claim					2
Number of claims dismissed \| claim	6
Number of lawsuits filed \| claim			13
Brazilian Postalis Litigation
Commitments and Contingencies Disclosure [Line Items]
Number of lawsuits filed \| lawsuit		3
Maximum
Commitments and Contingencies Disclosure [Line Items]
Loss contingency, aggregate range of reasonable loss (up to)			$ 990,000,000
Standby letters of credit
Commitments and Contingencies Disclosure [Line Items]
Standby letters of credit (SBLC) collateralized with cash and securities			184,000,000	223,000,000
SBLC expiring within one year			1,600,000,000
SBLC expiring within one to five years			723,000,000
SBLC expiring after five years			3,000,000
Off-balance sheet credit risks			2,298,000,000	2,817,000,000
Commercial letters of credit
Commitments and Contingencies Disclosure [Line Items]
Off-balance sheet credit risks			74,000,000	165,000,000
Unsettled Repurchase Agreements
Commitments and Contingencies Disclosure [Line Items]
Guarantor obligations, maximum exposure, undiscounted			0
Unsettled Reverse Repurchase Agreements
Commitments and Contingencies Disclosure [Line Items]
Guarantor obligations, maximum exposure, undiscounted			8,300,000,000
Operating segments
Commitments and Contingencies Disclosure [Line Items]
Allowance for lending-related commitments			$ 94,000,000	$ 106,000,000
Federal Court \| Mortgage-Securitization Trusts Proceedings
Commitments and Contingencies Disclosure [Line Items]
Number of lawsuits or class actions pending \| claim			4
Court of Appeals \| Mortgage-Securitization Trusts Proceedings
Commitments and Contingencies Disclosure [Line Items]
Number of lawsuits or class actions pending \| claim			1
State Court \| Mortgage-Securitization Trusts Proceedings
Commitments and Contingencies Disclosure [Line Items]
Number of lawsuits or class actions pending \| claim			1

Commitments and contingent li_5

Commitments and contingent liabilities - Standby Letters of Credits by Investment Grade (Details) - Standby letters of credit	Dec. 31, 2019	Dec. 31, 2018
Investment grade
Concentration Risk [Line Items]
Standby letters of credit by investment grade	90.00%	89.00%
Non-investment grade
Concentration Risk [Line Items]
Standby letters of credit by investment grade	10.00%	11.00%

Commitments and contingent li_6

Commitments and contingent liabilities - Significant Industry Concentrations Related to Credit Exposure (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Loans	$ 54,953	$ 56,564
Financial institutions
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Loans	12,500
Unfunded commitments	34,400
Total exposure	46,900
Financial institutions \| Securities industry
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Loans	2,900
Unfunded commitments	23,400
Total exposure	26,300
Financial institutions \| Banks
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Loans	7,400
Unfunded commitments	1,100
Total exposure	8,500
Financial institutions \| Asset managers
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Loans	1,300
Unfunded commitments	6,400
Total exposure	7,700
Financial institutions \| Insurance
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Loans	0
Unfunded commitments	2,700
Total exposure	2,700
Financial institutions \| Government
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Loans	100
Unfunded commitments	300
Total exposure	400
Financial institutions \| Other
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Loans	800
Unfunded commitments	500
Total exposure	1,300
Commercial
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Loans	1,800
Unfunded commitments	12,600
Total exposure	14,400
Commercial \| Manufacturing
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Loans	900
Unfunded commitments	4,200
Total exposure	5,100
Commercial \| Services and other
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Loans	600
Unfunded commitments	3,700
Total exposure	4,300
Commercial \| Energy and utilities
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Loans	300
Unfunded commitments	3,700
Total exposure	4,000
Commercial \| Media and telecom
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Loans	0
Unfunded commitments	1,000
Total exposure	$ 1,000

Derivative instruments - Narrat

Derivative instruments - Narrative (Details) - USD ($)	12 Months Ended
Derivative instruments - Narrative (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Counterparty default losses recorded	$ 0
Hedging derivatives, maturities, maximum	1 year
Non-derivative financial instruments designated as hedges of net investments in foreign subsidiaries were all long-term liabilities of BNY Mellon in various currencies	$ 172,000,000
Gain or (loss) recognized in income on derivatives	$ 7,000,000	$ 11,000,000	$ (2,000,000)
Value-at-risk methodology assumed holding period for instruments	1 day
Value-at-risk methodology confidence level percentage	99.00%
Additional collateral The Bank of New York Mellon would have to post for existing collateral arrangements, if The Bank of New York Mellon had fallen below investment grade	$ 63,000,000	100,000,000
Foreign exchange contracts \| Net investment hedging
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Hedged financial instruments, notional amount of derivative	7,900,000,000
Foreign exchange contracts \| Forecasted Foreign Currency
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Gain (loss) to be reclassified in next 12 months from AOCI to earnings	4,000,000
Foreign exchange contracts \| Forecasted Foreign Currency \| Cash flow hedges
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Hedged financial instruments, notional amount of derivative	$ 388,000,000
Original maturities, maximum, of hedged instruments	18 months
Pre-tax gain (loss) recognized in OCI related to cash flow hedges	$ 5,000,000
Securities available-for-sale \| Interest rate swap
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Hedged financial instruments	13,700,000,000
Hedged financial instruments, notional amount of derivative	13,700,000,000
Securities available-for-sale \| Foreign exchange contracts
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Hedged financial instruments	142,000,000
Securities available-for-sale \| Foreign exchange contracts \| Fair value hedging
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Hedged financial instruments, notional amount of derivative	142,000,000
Long-term debt
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Hedged financial instruments	14,700,000,000
Long-term debt \| Interest rate swap
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Hedged financial instruments, notional amount of derivative	$ 14,700,000,000
Original maturities, minimum, of hedged instruments	5 years
Original maturities, maximum, of hedged instruments	30 years
Gain (loss) to be reclassified in next 12 months from AOCI to earnings	$ 0
Not Designated as Hedging Instrument, Economic Hedge \| Staff expense \| Equity Swap
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Gain or (loss) recognized in income on derivatives	$ 36,000,000	$ (20,000,000)	$ 26,000,000

Derivative instruments - Gains

Derivative instruments - Gains (Losses) Related to Hedging Derivative Portfolio Recognized in the Income Statement (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in the consolidated income statement due to fair value and cash flow hedging relationships	$ 7	$ 11	$ (2)
Interest rate contracts \| Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (loss) on cash flow hedges	7	0	0
Interest rate contracts \| Long-term debt \| Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (loss) recognized on derivatives	486	(328)	(197)
Gain or (loss) recognized on hedged item	(483)	330	190
Interest rate contracts \| Securities available-for-sale \| Interest revenue
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (loss) recognized on derivatives	(795)	284	82
Gain or (loss) recognized on hedged item	788	(273)	(97)
FX contracts \| Other revenue
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (loss) on cash flow hedges	0	2	8
FX contracts \| Trading revenue
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (loss) on cash flow hedges	0	0	2
FX contracts \| Staff expense
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (loss) on cash flow hedges	3	(4)	10
FX contracts \| Securities available-for-sale
Derivative Instruments, Gain (Loss) [Line Items]
Gain from components excluded from assessment of fair value hedge effectiveness, net	2	(1)
FX contracts \| Securities available-for-sale \| Other revenue
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (loss) recognized on derivatives	9	(2)	0
Gain or (loss) recognized on hedged item	$ (8)	$ 2	$ 0

Derivative instruments - Impact

Derivative instruments - Impact of Hedging Derivatives Used in Net Investment Hedging Relationships (Details) - FX contracts - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (loss) recognized in accumulated OCI on derivatives Year ended Dec. 31,	$ (19)	$ 535	$ (625)
Net interest revenue
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (loss) reclassified from accumulated OCI into income Year ended Dec. 31,	$ 0	$ 0	$ 0

Derivative instruments - Hedged

Derivative instruments - Hedged Items in Fair Value Hedging Relationships (Details) - Fair value hedging - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Long-term debt
Derivative [Line Items]
Carrying amount of hedged asset or liability, Long-term debt	$ 13,945,000,000	$ 16,147,000,000
Hedged liability, discontinued fair value hedge, cumulative decrease	(200,000,000)	(284,000,000)
Hedged liability, fair value hedge, cumulative increase (decrease)	116,000,000	(453,000,000)
Securities available-for-sale
Derivative [Line Items]
Carrying amount of hedged asset or liability, Available-for-sale securities	13,792,000,000	19,201,000,000
Hedge accounting basis adjustment increase (decrease), Available-for-sale securities	687,000,000	(125,000,000)
Hedge accounting basis adjustment increase (decrease), discontinued hedges	53,000,000	0
Not designated as hedging \| Securities available-for-sale \| Foreign exchange contracts
Derivative [Line Items]
Hedged financial instruments, carrying amount	$ 142,000,000	$ 148,000,000

Derivative instruments - Impa_2

Derivative instruments - Impact of Derivative Instruments on the Balance Sheet (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Asset derivatives fair value
Total derivatives fair value	$ 9,061	$ 8,754
Effect of master netting agreements	(5,819)	(5,939)
Fair value after effect of master netting agreements	3,242	2,815
Liability derivatives fair value
Total derivatives fair value	9,206	8,538
Effect of master netting agreements	(5,415)	(6,170)
Fair value after effect of master netting agreements	3,791	2,368
Derivative asset, collateral, obligation to return cash, offset	1,022	809
Derivative liability, collateral, right to reclaim cash, offset	618	1,040
Interest rate contracts
Asset derivatives fair value
Effect of master netting agreements	(1,792)	(2,202)
Liability derivatives fair value
Effect of master netting agreements	(1,986)	(2,508)
Foreign exchange contracts
Asset derivatives fair value
Effect of master netting agreements	(4,021)	(3,724)
Liability derivatives fair value
Effect of master netting agreements	(3,428)	(3,626)
Equity contracts
Asset derivatives fair value
Effect of master netting agreements	(6)	(13)
Liability derivatives fair value
Effect of master netting agreements	(1)	(36)
Designated as hedging
Asset derivatives fair value
Total derivatives fair value	21	289
Liability derivatives fair value
Total derivatives fair value	607	88
Designated as hedging \| Interest rate contracts
Notional value
Notional amount of hedge	28,365	35,890
Asset derivatives fair value
Total derivatives fair value	0	23
Liability derivatives fair value
Total derivatives fair value	350	74
Designated as hedging \| Foreign exchange contracts
Notional value
Notional amount of hedge	8,390	6,330
Asset derivatives fair value
Total derivatives fair value	21	266
Liability derivatives fair value
Total derivatives fair value	257	14
Not designated as hedging
Asset derivatives fair value
Total derivatives fair value	9,040	8,465
Liability derivatives fair value
Total derivatives fair value	8,599	8,450
Not designated as hedging \| Interest rate contracts
Notional value
Notional amount of hedge	306,790	248,534
Asset derivatives fair value
Total derivatives fair value	3,690	3,590
Liability derivatives fair value
Total derivatives fair value	3,250	3,116
Not designated as hedging \| Foreign exchange contracts
Notional value
Notional amount of hedge	848,961	831,730
Asset derivatives fair value
Total derivatives fair value	5,331	4,807
Liability derivatives fair value
Total derivatives fair value	5,340	5,215
Not designated as hedging \| Equity contracts
Notional value
Notional amount of hedge	3,189	927
Asset derivatives fair value
Total derivatives fair value	19	68
Liability derivatives fair value
Total derivatives fair value	5	118
Not designated as hedging \| Credit contracts
Notional value
Notional amount of hedge	165	150
Asset derivatives fair value
Total derivatives fair value	0	0
Liability derivatives fair value
Total derivatives fair value	$ 4	$ 1

Derivative instruments - Revenu

Derivative instruments - Revenue from Foreign Exchange and Other Trading (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Foreign exchange	$ 577	$ 663	$ 638
Other trading revenue	77	69	30
Total foreign exchange and other trading revenue	$ 654	$ 732	$ 668

Derivative instruments - Contra

Derivative instruments - Contracts Falling under Early Termination Provisions (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Credit Derivatives [Line Items]
Aggregate fair value of OTC derivatives in net liability positions	$ 3,442	$ 2,877
Collateral posted	3,671	2,801
A3 \| A-
Credit Derivatives [Line Items]
Aggregate fair value of OTC derivatives in net liability positions	56	15
Baa2 \| BBB
Credit Derivatives [Line Items]
Aggregate fair value of OTC derivatives in net liability positions	608	116
Ba1 \| BB plus
Credit Derivatives [Line Items]
Aggregate fair value of OTC derivatives in net liability positions	$ 2,084	$ 1,041

Derivative instruments - Offset

Derivative instruments - Offsetting (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Derivative Asset
Derivatives subject to netting arrangements, Gross assets recognized	$ 7,264	$ 7,101
Total derivatives subject to netting arrangements, Gross amounts offset in the balance sheet	5,819	5,939
Derivatives subject to netting arrangements, Net assets recognized in the balance sheet	1,445	1,162
Total derivatives, Gross amounts not offset in the balance sheet, Financial instruments	251	203
Total derivatives, Gross amounts not offset in the balance sheet, Cash collateral received	0	0
Derivative assets subject to netting arrangements, Net amount	1,194	959
Total derivatives not subject to netting arrangements	1,797	1,653
Total derivatives, Gross assets recognized	9,061	8,754
Fair value after effect of master netting agreements	3,242	2,815
Total derivatives, Net amount	2,991	2,612
Reverse repurchase agreements, Gross assets recognized	112,355	112,245
Reverse repurchase agreements, Gross amounts offset in the balance sheet	93,794	76,040
Reverse repurchase agreements, Net assets recognized on the balance sheet	18,561	36,205
Reverse repurchase agreements, Gross amounts not offset in the balance sheet, Financial instruments	18,554	36,205
Reverse repurchase agreements, Gross amounts not offset in the balance sheet, Cash collateral received	0	0
Reverse repurchase agreements, Net amount	7	0
Securities borrowing, Gross assets recognized	11,621	10,588
Securities borrowing, Net assets recognized on the balance sheet	11,621	10,588
Securities borrowing, Gross amounts not offset in the balance sheet, Financial instruments	11,278	10,286
Securities borrowing, Net amount	343	302
Total, Gross assets recognized	133,037	131,587
Total, Gross amounts offset in the balance sheet	99,613	81,979
Total, Net assets recognized on the balance sheet	33,424	49,608
Total, Gross amounts not offset in the balance sheet, Financial instruments	30,083	46,694
Total, Gross amounts not offset in the balance sheet, Cash collateral received	0	0
Total, Net amount	3,341	2,914
Derivative Liability
Derivatives subject to netting arrangements, Gross liabilities recognized	8,428	7,966
Derivatives subject to netting arrangements, Gross amounts offset in the balance sheet	5,415	6,170
Derivatives subject to netting arrangements, Net liabilities recognized in the balance sheet	3,013	1,796
Total derivatives, Gross amounts not offset in the balance sheet, Financial instruments	1,615	771
Total derivatives, Gross amounts not offset in the balance sheet, Cash collateral pledged	0	0
Derivative liabilities subject to netting arrangements, Net amount	1,398	1,025
Total derivatives not subject to netting arrangements	778	572
Total derivatives, Gross liabilities recognized	9,206	8,538
Fair value after effect of master netting agreements	3,791	2,368
Total derivatives, Net amount	2,176	1,597
Repurchase agreements, Gross liabilities recognized	104,451	84,665
Repurchase agreements, Gross amounts offset in the balance sheet	93,794	76,040
Repurchase agreements, Net liabilities recognized on the balance sheet	10,657	8,625
Repurchase agreements, Gross amounts not offset in the balance sheet, Financial instruments	10,657	8,625
Repurchase agreements, Gross amounts not offset in the balance sheet, Cash collateral pledged	0	0
Repurchase agreements, Net amount	0	0
Securities lending, Gross liabilities recognized	718	997
Securities lending, Net liabilities recognized on the balance sheet	718	997
Securities lending, Gross amounts not offset in the balance sheet, Financial instruments	694	937
Securities lending, Net amount	24	60
Total, Gross liabilities recognized	114,375	94,200
Total, Gross amounts offset in the balance sheet	99,209	82,210
Total, Net liabilities recognized on the balance sheet	15,166	11,990
Total, Gross amounts not offset in the balance sheet, Financial instruments	12,966	10,333
Total, Gross amounts not offset in the balance sheet, Cash collateral pledged	0	0
Total, Net amount	2,200	1,657
Interest rate contracts
Derivative Asset
Derivatives subject to netting arrangements, Gross assets recognized	2,394	2,654
Total derivatives subject to netting arrangements, Gross amounts offset in the balance sheet	1,792	2,202
Derivatives subject to netting arrangements, Net assets recognized in the balance sheet	602	452
Total derivatives, Gross amounts not offset in the balance sheet, Financial instruments	207	133
Total derivatives, Gross amounts not offset in the balance sheet, Cash collateral received	0	0
Derivative assets subject to netting arrangements, Net amount	395	319
Derivative Liability
Derivatives subject to netting arrangements, Gross liabilities recognized	3,550	3,144
Derivatives subject to netting arrangements, Gross amounts offset in the balance sheet	1,986	2,508
Derivatives subject to netting arrangements, Net liabilities recognized in the balance sheet	1,564	636
Total derivatives, Gross amounts not offset in the balance sheet, Financial instruments	1,539	547
Total derivatives, Gross amounts not offset in the balance sheet, Cash collateral pledged	0	0
Derivative liabilities subject to netting arrangements, Net amount	25	89
Foreign exchange contracts
Derivative Asset
Derivatives subject to netting arrangements, Gross assets recognized	4,861	4,409
Total derivatives subject to netting arrangements, Gross amounts offset in the balance sheet	4,021	3,724
Derivatives subject to netting arrangements, Net assets recognized in the balance sheet	840	685
Total derivatives, Gross amounts not offset in the balance sheet, Financial instruments	44	70
Total derivatives, Gross amounts not offset in the balance sheet, Cash collateral received	0	0
Derivative assets subject to netting arrangements, Net amount	796	615
Derivative Liability
Derivatives subject to netting arrangements, Gross liabilities recognized	4,873	4,747
Derivatives subject to netting arrangements, Gross amounts offset in the balance sheet	3,428	3,626
Derivatives subject to netting arrangements, Net liabilities recognized in the balance sheet	1,445	1,121
Total derivatives, Gross amounts not offset in the balance sheet, Financial instruments	74	187
Total derivatives, Gross amounts not offset in the balance sheet, Cash collateral pledged	0	0
Derivative liabilities subject to netting arrangements, Net amount	1,371	934
Equity and other contracts
Derivative Asset
Derivatives subject to netting arrangements, Gross assets recognized	9	38
Total derivatives subject to netting arrangements, Gross amounts offset in the balance sheet	6	13
Derivatives subject to netting arrangements, Net assets recognized in the balance sheet	3	25
Total derivatives, Gross amounts not offset in the balance sheet, Financial instruments	0	0
Total derivatives, Gross amounts not offset in the balance sheet, Cash collateral received	0	0
Derivative assets subject to netting arrangements, Net amount	3	25
Derivative Liability
Derivatives subject to netting arrangements, Gross liabilities recognized	5	75
Derivatives subject to netting arrangements, Gross amounts offset in the balance sheet	1	36
Derivatives subject to netting arrangements, Net liabilities recognized in the balance sheet	4	39
Total derivatives, Gross amounts not offset in the balance sheet, Financial instruments	2	37
Total derivatives, Gross amounts not offset in the balance sheet, Cash collateral pledged	0	0
Derivative liabilities subject to netting arrangements, Net amount	$ 2	$ 2

Derivative instruments - Secure

Derivative instruments - Secured Borrowings (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	$ 104,451	$ 84,665
Securities lending	718	997
Total borrowings	105,169	85,662
Overnight and continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	99,953	81,615
Securities lending	718	997
Total borrowings	100,671	82,612
Up to 30 days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	1,323	0
Securities lending	0	0
Total borrowings	1,323	0
30 days or more
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	3,175	3,050
Securities lending	0	0
Total borrowings	3,175	3,050
U.S. Treasury
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	94,798	76,822
U.S. Treasury \| Overnight and continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	94,788	76,822
U.S. Treasury \| Up to 30 days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	10	0
U.S. Treasury \| 30 days or more
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	0	0
U.S. government agencies
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	610	759
Securities lending	19	7
U.S. government agencies \| Overnight and continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	594	759
Securities lending	19	7
U.S. government agencies \| Up to 30 days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	16	0
Securities lending	0	0
U.S. government agencies \| 30 days or more
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	0	0
Securities lending	0	0
Agency RMBS
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	5,008	3,188
Agency RMBS \| Overnight and continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	4,234	3,184
Agency RMBS \| Up to 30 days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	774	0
Agency RMBS \| 30 days or more
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	0	4
Corporate bonds
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	2,119	1,829
Corporate bonds \| Overnight and continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	266	416
Corporate bonds \| Up to 30 days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	236	0
Corporate bonds \| 30 days or more
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	1,617	1,413
Other debt securities
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	1,307	1,377
Securities lending	201	294
Other debt securities \| Overnight and continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	40	271
Securities lending	201	294
Other debt securities \| Up to 30 days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	188	0
Securities lending	0	0
Other debt securities \| 30 days or more
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	1,079	1,106
Securities lending	0	0
Equity securities
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	609	690
Securities lending	498	696
Equity securities \| Overnight and continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	31	163
Securities lending	498	696
Equity securities \| Up to 30 days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	99	0
Securities lending	0	0
Equity securities \| 30 days or more
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	479	527
Securities lending	$ 0	$ 0

Lines of business - Narrative (

Lines of business - Narrative (Details)	12 Months Ended
Lines of business - Narrative (Details)	Dec. 31, 2019business
Segment Reporting [Abstract]
Number of principal businesses (business)	2

Lines of business - Contributio

Lines of business - Contribution of Segments to Overall Profitability (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Total fee and other revenue	$ 13,218	$ 12,794	$ 12,165
Net interest revenue (expense)	3,188	3,611	3,308
Total revenue	16,462	16,392	15,543
Provision for credit losses	(25)	(11)	(24)
Income from consolidated investment management funds, net of noncontrolling interests	4,441	4,266	4,090
Investment income (loss), net	56	(13)	70
Net income (loss) attributable to noncontrolling interests	26	(12)	24
Investment Management
Segment Reporting Information [Line Items]
Net income (loss) attributable to noncontrolling interests	26	(12)	33
Operating segments
Segment Reporting Information [Line Items]
Total fee and other revenue	13,248	12,792	12,202
Net interest revenue (expense)	3,188	3,611	3,308
Total revenue	16,436	16,403	15,510
Provision for credit losses	(25)	(11)	(24)
Noninterest expense	10,900	11,210	10,948
Income (loss) before taxes	$ 5,561	$ 5,204	$ 4,586
Pre-tax operating margin	34.00%	32.00%	30.00%
Average assets	$ 345,955	$ 343,774	$ 343,848
Net income (loss) attributable to noncontrolling interests		(1)	(9)
Operating segments \| Investment Services
Segment Reporting Information [Line Items]
Total fee and other revenue	8,894	8,926	8,527
Net interest revenue (expense)	3,093	3,372	3,058
Total revenue	11,987	12,298	11,585
Provision for credit losses	(16)	1	(7)
Noninterest expense	8,049	8,058	7,747
Income (loss) before taxes	$ 3,954	$ 4,239	$ 3,845
Pre-tax operating margin	33.00%	34.00%	33.00%
Average assets	$ 267,135	$ 262,747	$ 254,646
Operating segments \| Investment Management
Segment Reporting Information [Line Items]
Total fee and other revenue	3,466	3,781	3,668
Net interest revenue (expense)	255	303	329
Total revenue	3,721	4,084	3,997
Provision for credit losses	(1)	3	2
Noninterest expense	2,643	2,818	2,854
Income (loss) before taxes	$ 1,079	$ 1,263	$ 1,141
Pre-tax operating margin	29.00%	31.00%	29.00%
Average assets	$ 30,697	$ 31,446	$ 31,450
Income from consolidated investment management funds, net of noncontrolling interests	30	(1)	37
Investment income (loss), net	56	(13)	70
Net income (loss) attributable to noncontrolling interests	26	(12)	33
Operating segments \| Other
Segment Reporting Information [Line Items]
Total fee and other revenue	888	85	7
Net interest revenue (expense)	(160)	(64)	(79)
Total revenue	728	21	(72)
Provision for credit losses	(8)	(15)	(19)
Noninterest expense	208	334	347
Income (loss) before taxes	528	(298)	(400)
Average assets	$ 48,123	$ 49,581	$ 57,752

International operations (Detai

International operations (Details) - USD ($) $ in Millions	12 Months Ended
International operations (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Assets	$ 381,508	$ 362,873	$ 371,758
Total revenue	16,462	16,392	15,543
Income before income taxes	5,587	5,192	4,610
Net income	4,467	4,254	4,114
EMEA
Segment Reporting Information [Line Items]
Assets	74,504	74,982	88,490
Total revenue	3,833	4,252	3,982
Income before income taxes	1,447	1,694	1,497
Net income	1,116	1,345	1,186
APAC
Segment Reporting Information [Line Items]
Assets	36,347	23,199	20,676
Total revenue	1,161	1,103	997
Income before income taxes	548	564	538
Net income	423	448	426
Other
Segment Reporting Information [Line Items]
Assets	2,636	1,483	1,737
Total revenue	737	684	610
Income before income taxes	506	455	296
Net income	390	361	234
Total International
Segment Reporting Information [Line Items]
Assets	113,487	99,664	110,903
Total revenue	5,731	6,039	5,589
Income before income taxes	2,501	2,713	2,331
Net income	1,929	2,154	1,846
Domestic
Segment Reporting Information [Line Items]
Assets	268,021	263,209	260,855
Total revenue	10,731	10,353	9,954
Income before income taxes	3,086	2,479	2,279
Net income	2,538	2,100	2,268
UK
Segment Reporting Information [Line Items]
Assets	30,800	30,600	32,900
Total revenue	$ 2,600	$ 2,600	$ 2,400
Percentage of asset	8.00%	8.00%	9.00%
Percentage of revenue	16.00%	16.00%	15.00%

Supplemental information to t_3

Supplemental information to the Consolidated Statement of Cash Flows (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Supplemental Cash Flow Information [Abstract]
Transfers from loans to other assets for other real estate owned	$ 2	$ 2	$ 3
Change in assets of consolidated investment management funds	16	268	500
Change in liabilities of consolidated investment management funds	1	0	313
Change in nonredeemable noncontrolling interests of consolidated investment management funds	1	215	302
Securities purchased not settled	497	227	112
Securities sold not settled	0	187	587
Securities matured not settled	0	0	70
Available-for-sale securities transferred to trading assets	0	963	0
Held-to-maturity securities transferred to available-for-sale	0	1,087	74
Premises and equipment/capitalized software funded by finance lease obligations	14	26	347
Premises and equipment/operating lease obligations	1,754	0	0
Investment redemptions not settled	$ 20	$ 0	$ 0

Supplemental information to t_4

Supplemental information to the Consolidated Statement of Cash Flows - Footnote (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Lessee, Lease, Description [Line Items]
Premises and equipment/operating lease obligations	$ 1,754	$ 0	$ 0
ASU 2016-02
Lessee, Lease, Description [Line Items]
Premises and equipment/operating lease obligations	1,244
New or Modified Leases
Lessee, Lease, Description [Line Items]
Premises and equipment/operating lease obligations	$ 510

Uncategorized Items - _IXDS

Label	Element	Value
Cash and Cash Equivalents, at Carrying Value	us-gaap_CashAndCashEquivalentsAtCarryingValue	$ 4,830,000,000
Cash and Cash Equivalents, at Carrying Value	us-gaap_CashAndCashEquivalentsAtCarryingValue	5,864,000,000
Cash and Cash Equivalents, at Carrying Value	us-gaap_CashAndCashEquivalentsAtCarryingValue	5,382,000,000
Restricted Cash and Cash Equivalents	us-gaap_RestrictedCashAndCashEquivalents	1,751,000,000
Restricted Cash and Cash Equivalents	us-gaap_RestrictedCashAndCashEquivalents	2,394,000,000
Restricted Cash and Cash Equivalents	us-gaap_RestrictedCashAndCashEquivalents	2,437,000,000
Treasury Stock [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	(12,248,000,000)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	(15,517,000,000)
Common Stock [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	14,000,000
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	14,000,000
Retained Earnings [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	28,742,000,000
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	25,607,000,000
Additional Paid-in Capital [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	27,118,000,000
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	26,665,000,000
Preferred Stock [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	3,542,000,000
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	3,542,000,000
Noncontrolling Interest In Consolidated Entity [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	101,000,000
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	316,000,000
Temporary Equity Redeemable Noncontrolling Interests [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	129,000,000
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1	179,000,000
Accounting Standards Update 2017-12 [Member] \| Retained Earnings [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	27,000,000
Accounting Standards Update 2014-09 [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	(55,000,000)
Accounting Standards Update 2014-09 [Member] \| Retained Earnings [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ (55,000,000)