U.S. Bancorp (USB) 10-K20 Feb 202019 FY Annual reportFinancial data

Company Profile

Cover Page

Cover Page - USD ($) $ in Billions	12 Months Ended
Cover Page - USD ($) $ in Billions	Dec. 31, 2019	Jan. 31, 2020	Jun. 30, 2019
Document Information [Line Items]
Document Type	10-K
Entity Registrant Name	US BANCORP \DE\
Document Period End Date	Dec. 31, 2019
Entity Filer Category	Large Accelerated Filer
Entity Shell Company	false
Entity Current Reporting Status	Yes
Entity Smaller Reporting Company	false
Entity Emerging Growth Company	false
Document Transition Report	false
Document Annual Report	true
Entity File Number	1-6880
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	41-0255900
Entity Interactive Data Current	Yes
Entity Address, Postal Zip Code	55402
Entity Address, City or Town	Minneapolis
Entity Address, State or Province	MN
Entity Address, Address Line One	800 Nicollet Mall
City Area Code	651
Local Phone Number	466-3000
Entity Common Stock, Shares Outstanding		1,522,494,686
Amendment Flag	false
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Entity Central Index Key	0000036104
Current Fiscal Year End Date	--12-31
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	Yes
Entity Public Float			$ 83
Common Stock [Member]
Document Information [Line Items]
Trading Symbol	USB
Title of 12(b) Security	Common Stock
Security Exchange Name	NYSE
Series A Preferred Stock [Member]
Document Information [Line Items]
Trading Symbol	USB PrA
Title of 12(b) Security	Depositary Shares
Security Exchange Name	NYSE
Series B Preferred Stock [Member]
Document Information [Line Items]
Trading Symbol	USB PrH
Title of 12(b) Security	Depositary Shares
Security Exchange Name	NYSE
Series F Preferred Stock [Member]
Document Information [Line Items]
Trading Symbol	USB PrM
Title of 12(b) Security	Depositary Shares
Security Exchange Name	NYSE
Series H Preferred Stock [Member]
Document Information [Line Items]
Trading Symbol	USB PrO
Title of 12(b) Security	Depositary Shares
Security Exchange Name	NYSE
Series K Preferred Stock [Member]
Document Information [Line Items]
Trading Symbol	USB PrP
Title of 12(b) Security	Depositary Shares
Security Exchange Name	NYSE
Series X [Member]
Document Information [Line Items]
Trading Symbol	USB/24B
Title of 12(b) Security	Medium-Term Notes
Security Exchange Name	NYSE

Consolidated Balance Sheet

Consolidated Balance Sheet - USD ($) $ in Millions		Dec. 31, 2019		Dec. 31, 2018
Assets
Cash and due from banks		$ 22,405		$ 21,453
Investment securities
Held-to-maturity (2018 fair value $44,964)				46,050
Available-for-sale ($269 and $2,057 pledged as collateral, respectively)	[1]	122,613	[2]	66,115
Loans held for sale (including $5,533 and $2,035 of mortgage loans carried at fair value, respectively)		5,578		2,056
Loans
Total loans		296,102		286,810
Less allowance for loan losses		(4,020)		(3,973)
Net loans		292,082		282,837
Premises and equipment		3,702		2,457
Goodwill		9,655		9,369
Other intangible assets		3,223		3,392
Other assets (including $951 and $843 of trading securities at fair value pledged as collateral, respectively)		36,168		33,645
Total assets		495,426		467,374
Deposits
Noninterest-bearing		75,590		81,811
Interest-bearing	[3]	286,326		263,664
Total deposits		361,916		345,475
Short-term borrowings		23,723		14,139
Long-term debt		40,167		41,340
Other liabilities		17,137		14,763
Total liabilities		442,943		415,717
Shareholders' equity
Preferred stock		5,984		5,984
Common stock, par value $0.01 a share — authorized: 4,000,000,000 shares; issued: 2019 and 2018 — 2,125,725,742 shares		21		21
Capital surplus		8,475		8,469
Retained earnings		63,186		59,065
Less cost of common stock in treasury: 2019 — 591,570,506 shares; 2018 — 517,391,021 shares		(24,440)		(20,188)
Accumulated other comprehensive income (loss)		(1,373)		(2,322)
Total U.S. Bancorp shareholders' equity		51,853		51,029
Noncontrolling interests		630		628
Total equity		52,483		51,657
Total liabilities and equity		495,426		467,374
Commercial
Loans
Total loans		103,863		102,444
Commercial real estate
Loans
Total loans		39,746		39,539
Residential mortgages
Loans
Total loans		70,586		65,034
Credit card
Loans
Total loans		24,789		23,363
Other retail
Loans
Total loans		$ 57,118		$ 56,430

[1]	Includes only collateral pledged by the Company where counterparties have the right to sell or pledge the collateral.
[2]	The weighted-average maturity of total available-for-sale and held-to-maturity investment securities was 5.3 years at December 31, 2018, with a corresponding weighted-average yield of 2.53 percent.
[3]	lncludes time deposits greater than $250,000 balances of $7.8 billion and $15.3 billion at December 31, 2019 and 2018, respectively.

Consolidated Balance Sheet (Par

Consolidated Balance Sheet (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Held-to-maturity securities, Fair Value		$ 44,964
Securities, pledged as collateral	$ 269	2,100
Mortgage loans, carried at fair value	$ 5,533	$ 2,035
Common stock, par value	$ 0.01	$ 0.01
Common stock, share-authorized (actual number of shares)	4,000,000,000	4,000,000,000
Common stock, shares issued (actual number of shares)	2,125,725,742	2,125,725,742
Treasury stock, shares (actual number of shares)	591,570,506	517,391,021
Time deposits greater than 250,000	$ 7,800	$ 15,300
Available-for-Sale Securities [Member]
Securities, pledged as collateral	269	2,057
Trading Assets, Excluding Debt and Equity Securities [Member]
Securities, pledged as collateral	$ 951	$ 843

Consolidated Statement of Incom

Consolidated Statement of Income - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Interest Income
Loans	$ 14,099	$ 13,120	$ 11,788
Loans held for sale	162	165	144
Investment securities	2,893	2,616	2,232
Other interest income	340	272	182
Total interest income	17,494	16,173	14,346
Interest Expense
Deposits	2,855	1,869	1,041
Short-term borrowings	360	378	141
Long-term debt	1,227	1,007	784
Total interest expense	4,442	3,254	1,966
Net interest income	13,052	12,919	12,380
Provision for credit losses	1,504	1,379	1,390
Net interest income after provision for credit losses	11,548	11,540	10,990
Noninterest Income
Credit and debit card revenue	1,413	1,401	1,289
Corporate payment products revenue	664	644	575
Merchant processing services	1,601	1,531	1,486
Trust and investment management fees	1,673	1,619	1,522
Deposit service charges	909	1,070	1,035
Treasury management fees	578	594	618
Commercial products revenue	934	895	954
Mortgage banking revenue	874	720	834
Investment products fees	186	188	173
Realized securities gains (losses), net	73	30	57
Other	926	910	774
Total noninterest income	9,831	9,602	9,317
Noninterest Expense
Compensation	6,325	6,162	5,746
Employee benefits	1,286	1,231	1,134
Net occupancy and equipment	1,123	1,063	1,019
Professional services	454	407	419
Marketing and business development	426	429	542
Technology and communications	1,095	978	903
Postage, printing and supplies	290	324	323
Other intangibles	168	161	175
Other	1,618	1,709	2,529
Total noninterest expense	12,785	12,464	12,790
Income before income taxes	8,594	8,678	7,517
Applicable income taxes	1,648	1,554	1,264
Net income	6,946	7,124	6,253
Net (income) loss attributable to noncontrolling interests	(32)	(28)	(35)
Net income attributable to U.S. Bancorp	6,914	7,096	6,218
Net income applicable to U.S. Bancorp common shareholders	$ 6,583	$ 6,784	$ 5,913
Earnings per common share	$ 4.16	$ 4.15	$ 3.53
Diluted earnings per common share	$ 4.16	$ 4.14	$ 3.51
Average common shares outstanding	1,581	1,634	1,677
Average diluted common shares outstanding	1,583	1,638	1,683

Consolidated Statement of Compr

Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 6,946	$ 7,124	$ 6,253
Other Comprehensive Income (Loss)
Changes in unrealized gains and losses on investment securities available-for-sale	1,693	(656)	178
Unrealized gains and losses on held-to-maturity investment securities transferred to available-for-sale	141
Changes in unrealized gains and losses on derivative hedges	(229)	39	(5)
Foreign currency translation	26	3	(2)
Changes in unrealized gains and losses on retirement plans	(380)	(302)	(41)
Reclassification to earnings of realized gains and losses	20	93	77
Income taxes related to other comprehensive income (loss)	(322)	205	(76)
Total other comprehensive income (loss)	949	(618)	131
Comprehensive income	7,895	6,506	6,384
Comprehensive (income) loss attributable to noncontrolling interests	(32)	(28)	(35)
Comprehensive income attributable to U.S. Bancorp	$ 7,863	$ 6,478	$ 6,349

Consolidated Statement of Share

Consolidated Statement of Shareholders' Equity - USD ($) shares in Millions, $ in Millions		Total	Common Stock [Member]	Preferred Stock [Member]	Capital Surplus [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total U.S. Bancorp Shareholders' Equity [Member]	Noncontrolling Interests [Member]
Beginning Balance at Dec. 31, 2016		$ 47,933	$ 21	$ 5,501	$ 8,440	$ 50,151	$ (15,280)	$ (1,535)	$ 47,298	$ 635
Shares, Beginning Balance at Dec. 31, 2016			1,697
Net income (loss)		6,253				6,218			6,218	35
Other comprehensive income (loss)		131						131	131
Preferred stock dividends	[1]	(267)				(267)			(267)
Common stock dividends		(1,950)				(1,950)			(1,950)
Issuance of preferred stock		993		993					993
Redemption of preferred stock		(1,085)		(1,075)		(10)			(1,085)
Issuance of common and treasury stock		162			(138)		300		162
Issuance of common and treasury stock, shares			8
Purchase of treasury stock		$ (2,622)					(2,622)		(2,622)
Purchase of treasury stock, shares		(49)	(49)
Distributions to noncontrolling interests		$ (47)								(47)
Net other changes in noncontrolling interests		3								3
Stock option and restricted stock grants		162			162				162
Ending Balance at Dec. 31, 2017		49,666	$ 21	5,419	8,464	54,142	(17,602)	(1,404)	49,040	626
Shares, Ending Balance at Dec. 31, 2017			1,656
Change in accounting principle at Dec. 31, 2017	[2]	(1)				299		(300)	(1)
Net income (loss)		7,124				7,096			7,096	28
Other comprehensive income (loss)		(618)						(618)	(618)
Preferred stock dividends	[3]	(282)				(282)			(282)
Common stock dividends		(2,190)				(2,190)			(2,190)
Issuance of preferred stock		565		565					565
Issuance of common and treasury stock		91			(167)		258		91
Issuance of common and treasury stock, shares			6
Purchase of treasury stock		$ (2,844)					(2,844)		(2,844)
Purchase of treasury stock, shares		(54)	(54)
Distributions to noncontrolling interests		$ (31)								(31)
Net other changes in noncontrolling interests		5								5
Stock option and restricted stock grants		172			172				172
Ending Balance at Dec. 31, 2018		$ 51,657	$ 21	5,984	8,469	59,065	(20,188)	(2,322)	51,029	628
Shares, Ending Balance at Dec. 31, 2018		1,600	1,608
Change in accounting principle at Dec. 31, 2018		$ 2				2			2
Net income (loss)		6,946				6,914			6,914	32
Other comprehensive income (loss)		949						949	949
Preferred stock dividends	[4]	(302)				(302)			(302)
Common stock dividends		(2,493)				(2,493)			(2,493)
Issuance of common and treasury stock		89			(174)		263		89
Issuance of common and treasury stock, shares			7
Purchase of treasury stock		$ (4,515)					(4,515)		(4,515)
Purchase of treasury stock, shares		(81)	(81)
Distributions to noncontrolling interests		$ (31)								(31)
Net other changes in noncontrolling interests		1								1
Stock option and restricted stock grants		180			180				180
Ending Balance at Dec. 31, 2019		$ 52,483	$ 21	$ 5,984	$ 8,475	$ 63,186	$ (24,440)	$ (1,373)	$ 51,853	$ 630
Shares, Ending Balance at Dec. 31, 2019		1,500	1,534

[1]	Reflects dividends declared per share on the Company’s Series A, Series B, Series F, Series G, Series H, Series I and Series J Non-Cumulative Perpetual Preferred Stock of $3,548.61, $887.15, $1,625.00, $375.00, $1,287.52, $1,281.25 and $890.69, respectively.
[2]	Reflects the adoption of new accounting guidance on January 1, 2018 to reclassify the impact of the reduced federal statutory tax rate for corporations included in 2017 tax reform legislation from accumulated other comprehensive income to retained earnings.
[3]	Reflects dividends declared per share on the Company’s Series A, Series B, Series F, Series H, Series I, Series J and Series K Non-Cumulative Perpetual Preferred Stock of $3,548.61, $887.15, $1,625.00, $1,287.52, $1,281.25, $1,325.00 and $576.74, respectively.
[4]	Reflects dividends declared per share on the Company’s Series A, Series B, Series F, Series H, Series I, Series J and Series K Non-Cumulative Perpetual Preferred Stock of $3,654.95, $887.15, $1,625.00, $1,287.52, $1,281.25, $1,325.00 and $1,375.00, respectively.

Consolidated Statement of Sha_2

Consolidated Statement of Shareholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Common stock dividends, share	$ 1.58	$ 1.34	$ 1.16
Series A [Member]
Preferred stock dividends declared per share	3,654.95	3,548.61	3,548.61
Series B [Member]
Preferred stock dividends declared per share	887.15	887.15	887.15
Series F [Member]
Preferred stock dividends declared per share	1,625	1,625	1,625
Series G [Member]
Preferred stock dividends declared per share			375
Series H [Member]
Preferred stock dividends declared per share	1,287.52	1,287.52	1,287.52
Series I [Member]
Preferred stock dividends declared per share	1,281.25	1,281.25	1,281.25
Series J [Member]
Preferred stock dividends declared per share	1,325	1,325	$ 890.69
Series K [Member]
Preferred stock dividends declared per share	$ 1,375	$ 576.74

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 attributable to U.S. Bancorp	$ 6,914	$ 7,096	$ 6,218
Adjustments to reconcile net income to net cash provided by operating activities
Provision for credit losses	1,504	1,379	1,390
Depreciation and amortization of premises and equipment	334	306	293
Amortization of intangibles	168	161	175
(Gain) loss on sale of loans held for sale	(762)	(394)	(772)
(Gain) loss on sale of securities and other assets	(469)	(510)	(502)
Loans originated for sale in the secondary market, net of repayments	(36,561)	(29,214)	(35,743)
Proceeds from sales of loans held for sale	33,303	30,730	37,462
Other, net	458	1,010	(2,049)
Net cash provided by operating activities	4,889	10,564	6,472
Investing Activities
Proceeds from sales of available-for-sale investment securities	11,252	1,400	3,084
Proceeds from maturities of held-to-maturity investment securities	9,137	6,619	8,306
Proceeds from maturities of available-for-sale investment securities	11,454	11,411	13,042
Purchases of held-to-maturity investment securities	(6,701)	(9,793)	(9,712)
Purchases of available-for-sale investment securities	(33,814)	(10,077)	(17,860)
Net increase in loans outstanding	(9,871)	(9,234)	(8,054)
Proceeds from sales of loans	2,899	4,862	2,458
Purchases of loans	(3,805)	(3,694)	(3,040)
Net increase (decrease) in securities purchased under agreements to resell	(816)	(182)	54
Other, net	(1,295)	(289)	(404)
Net cash used in investing activities	(21,560)	(8,977)	(12,126)
Financing Activities
Net increase (decrease) in deposits	16,441	(1,740)	12,625
Net increase (decrease) in short-term borrowings	9,584	(2,512)	2,688
Proceeds from issuance of long-term debt	9,899	12,078	9,434
Principal payments or redemption of long-term debt	(11,119)	(2,928)	(10,517)
Proceeds from issuance of preferred stock		565	993
Proceeds from issuance of common stock	88	86	159
Repurchase of preferred stock			(1,085)
Repurchase of common stock	(4,525)	(2,822)	(2,631)
Cash dividends paid on preferred stock	(302)	(274)	(284)
Cash dividends paid on common stock	(2,443)	(2,092)	(1,928)
Net cash used in financing activities	17,623	361	9,454
Change in cash and due from banks	952	1,948	3,800
Cash and due from banks at beginning of period	21,453	19,505	15,705
Cash and due from banks at end of period	22,405	21,453	19,505
Supplemental Cash Flow Disclosures
Cash paid for income taxes	941	365	555
Cash paid for interest	4,404	3,056	2,086
Noncash transfer of held-to-maturity investment securities to available-for-sale	43,596
Net noncash transfers to foreclosed property	$ 60	$ 115	$ 163

Significant Accounting Policies

Significant Accounting Policies	12 Months Ended
Significant Accounting Policies	Dec. 31, 2019
Accounting Policies [Abstract]
Significant Accounting Policies	NOTE 1 Significant Accounting Policies U.S. Bancorp is a multi-state financial services holding company headquartered in Minneapolis, Minnesota. U.S. Bancorp and its subsidiaries (the “Company”) provide a full range of financial services, including lending and depository services through banking offices principally in the Midwest and West regions of the United States. The Company also engages in credit card, merchant, and ATM processing, mortgage banking, cash management, capital markets, insurance, trust and investment management, brokerage, and leasing activities, principally in domestic markets. Basis of Presentation Uses of Estimates Securities Realized gains or losses on securities are determined on a trade date basis based on the specific amortized cost of the investments sold. Trading Securities Available-for-sale Held-to-maturity Securities Purchased Under Agreements to Resell and Securities Sold Under Agreements to Repurchase Equity Investments Equity investments in entities where the Company has a significant influence (generally between 20 percent and 50 percent ownership), but does not control the entity, are accounted for using the equity method. Investments in limited partnerships and similarly structured limited liability companies where the Company’s ownership interest is greater than 5 percent are accounted for using the equity method. Equity investments not using the equity method are accounted for at fair value with changes in fair value and realized gains or losses reported in noninterest income, unless fair value is not readily determinable, in which case the investment is carried at cost subject to adjustments for any observable market transactions on the same or similar instruments of the investee. Most of the Company’s equity investments do not have readily determinable fair values. All equity investments are evaluated for impairment at least annually and more frequently if certain criteria are met. Loans The Company offers a broad array of lending products and categorizes its loan portfolio into two segments, which is the level at which it develops and documents a systematic methodology to determine the allowance for credit losses. The Company’s two two three The Company’s accounting methods for loans differ depending on whether the loans are originated or purchased, and for purchased loans, whether the loans were acquired at a discount related to evidence of credit deterioration since date of origination. Originated Loans Held for Investment Purchased Loans (non-impaired non-impaired In determining the acquisition date fair value of purchased impaired loans, and in subsequent accounting, the Company generally aggregates purchased consumer loans and certain smaller balance commercial loans into pools of loans with common risk characteristics, while accounting for larger balance commercial loans individually. Expected cash flows at the purchase date in excess of the fair value of loans are recorded as interest income over the life of the loans if the timing and amount of the future cash flows is reasonably estimable. Subsequent to the purchase date, increases in cash flows over those expected at the purchase date are recognized as interest income prospectively. The present value of any decreases in expected cash flows, other than from decreases in variable interest rates, after the purchase date is recognized by recording an allowance for credit losses. Revolving loans, including lines of credit and credit cards loans, and leases are excluded from purchased impaired loans accounting. For purchased loans acquired after January 1, 2009 that are not deemed impaired at acquisition, credit discounts representing the principal losses expected over the life of the loan are a component of the initial fair value. Subsequent to the purchase date, the methods utilized to estimate the required allowance for credit losses for these loans is similar to originated loans; however, the Company records a provision for credit losses only when the required allowance exceeds any remaining credit discounts. The remaining differences between the purchase price and the unpaid principal balance at the date of acquisition are recorded in interest income over the life of the loans. Commitments to Extend Credit changes in fair value recorded in noninterest income. All other unfunded loan commitments are not considered derivatives and are not reported on the Consolidated Balance Sheet. For loans purchased after January 1, 2009, the fair value of the unfunded credit commitments is generally considered in the determination of the fair value of the loans recorded at the date of acquisition. Reserves for credit exposure on all other unfunded credit commitments are recorded in other liabilities. Allowance for Credit Losses The allowance recorded for loans in the commercial lending segment is based on reviews of individual credit relationships and considers the migration analysis of commercial lending segment loans and actual loss experience. For each loan type, this historical loss experience is adjusted as necessary to consider any relevant changes in portfolio composition, lending policies, underwriting standards, risk management practices or economic conditions. The results of the analysis are evaluated quarterly to confirm the selected loss experience is appropriate for each commercial loan type. The allowance recorded for impaired loans greater than $5 million in the commercial lending segment is based on an individual loan analysis utilizing expected cash flows discounted using the original effective interest rate, the observable market price of the loan, or the fair value of the collateral, less selling costs, for collateral-dependent loans, rather than the migration analysis. The allowance recorded for all other commercial lending segment loans is determined on a homogenous pool basis and includes consideration of product mix, risk characteristics of the portfolio, delinquency status, bankruptcy experience, portfolio growth and historical losses, adjusted for current trends. The Company also considers the impacts of any loan modifications made to commercial lending segment loans and any subsequent payment defaults to its expectations of cash flows, principal balance, and current expectations about the borrower’s ability to pay in determining the allowance for credit losses. The allowance recorded for Troubled Debt Restructuring (“TDR”) loans and purchased impaired loans in the consumer lending segment is determined on a homogenous pool basis utilizing expected cash flows discounted using the original effective interest rate of the pool, or the prior quarter effective rate, respectively. The allowance for collateral-dependent loans in the consumer lending segment is determined based on the fair value of the collateral less costs to sell. The allowance recorded for all other consumer lending segment loans is determined on a homogenous pool basis and includes consideration of product mix, risk characteristics of the portfolio, bankruptcy experience, delinquency status, refreshed loan-to-value portfolio growth and historical losses, adjusted for current trends. The Company also considers any modifications made to consumer lending segment loans including the impacts of any subsequent payment defaults since modification in determining the allowance for credit losses, such as the borrower’s ability to pay under the restructured terms, and the timing and amount of payments. In addition, subsequent payment defaults on loan modifications considered TDRs are considered in the underlying factors used in the determination of the appropriateness of the allowance for credit losses. For each loan segment, the Company estimates future loan charge-offs through a variety of analysis, trends and underlying assumptions. With respect to the commercial lending segment, TDRs may be collectively evaluated for impairment where observed performance history, including defaults, is a primary driver of the loss allocation. For commercial TDRs individually evaluated for impairment, attributes of the borrower are the primary factors in determining the allowance for credit losses. However, historical loss experience is also incorporated into the allowance methodology applied to this category of loans. With respect to the consumer lending segment, performance of the portfolio, including defaults on TDRs, is considered when estimating future cash flows. The Company’s methodology for determining the appropriate allowance for credit losses for each loan segment also considers the imprecision inherent in the methodologies used. As a result, in addition to the amounts determined under the methodologies described above, management also considers the potential impact of other qualitative factors which include, but are not limited to, economic factors; geographic and other concentration risks; delinquency and nonaccrual trends; current business conditions; changes in lending policy, underwriting standards and other relevant business practices; results of internal review; and the regulatory environment. The consideration of these items results in adjustments to allowance amounts included in the Company’s allowance for credit losses for each of the above loan segments. The Company also assesses the credit risk associated with off-balance off-balance Credit Quality For all loan classes, loans are considered past due based on the number of days delinquent except for monthly amortizing loans which are classified delinquent based upon the number of contractually required payments not made (for example, two missed payments is considered 30 days delinquent). When a loan is placed on nonaccrual status, unpaid accrued interest is reversed, reducing interest income in the current period. Commercial lending segment loans are generally placed on nonaccrual status when the collection of principal and interest has become 90 days past due or is otherwise considered doubtful. Commercial lending segment loans are generally fully or partially charged down to the fair value of the collateral securing the loan, less costs to sell, when the loan is placed on nonaccrual. Consumer lending segment loans are generally charged-off 1-4 charge-off 1-4 family charged-off. charged-off 1-4 charged-off charged-off charge-off. For all loan classes, interest payments received on nonaccrual loans are generally recorded as a reduction to a loan’s carrying amount while a loan is on nonaccrual and are recognized as interest income upon payoff of the loan. However, interest income may be recognized for interest payments if the remaining carrying amount of the loan is believed to be collectible. In certain circumstances, loans in any class may be restored to accrual status, such as when a loan has demonstrated sustained repayment performance or no amounts are past due and prospects for future payment are no longer in doubt; or when the loan becomes well secured and is in the process of collection. Loans where there has been a partial charge-off charged-off) recognized until the timing and amount of the future cash flows can be reasonably estimated. The Company classifies its loan portfolios using internal credit quality ratings on a quarterly basis. These ratings include pass, special mention and classified, and are an important part of the Company’s overall credit risk management process and evaluation of the allowance for credit losses. Loans with a pass rating represent those loans not classified on the Company’s rating scale for problem credits, as minimal credit risk has been identified. Special mention loans are those loans that have a potential weakness deserving management’s close attention. Classified loans are those loans where a well-defined weakness has been identified that may put full collection of contractual cash flows at risk. It is possible that others, given the same information, may reach different reasonable conclusions regarding the credit quality rating classification of specific loans. Troubled Debt Restructurings The Company has implemented certain restructuring programs that may result in TDRs. However, many of the Company’s TDRs are also determined on a case-by-case For the commercial lending segment, modifications generally result in the Company working with borrowers on a case-by-case Modifications for the consumer lending segment are generally part of programs the Company has initiated. The Company modifies residential mortgage loans under Federal Housing Administration, United States Department of Veterans Affairs, or its own internal programs. Under these programs, the Company offers qualifying homeowners the opportunity to permanently mo dify their loan and ments Credit card and other retail loan TDRs are generally part of distinct restructuring programs providing customers experiencing financial difficulty with modifications whereby balances may be amortized up to 60 months, and generally include waiver of fees and reduced interest rates. In addition, the Company considers secured loans to consumer borrowers that have debt discharged through bankruptcy where the borrower has not reaffirmed the debt to be TDRs. Acquired loans restructured after acquisition are not considered TDRs for accounting and disclosure purposes if the loans evidenced credit deterioration as of the acquisition date and are accounted for in pools. Impaired Loans Factors used by the Company in determining whether all principal and interest payments due on commercial and commercial real estate loans will be collected and, therefore, whether those loans are impaired include, but are not limited to, the financial condition of the borrower, collateral and/or guarantees on the loan, and the borrower’s estimated future ability to pay based on industry, geographic location and certain financial ratios. The evaluation of impairment on residential mortgages, credit card loans and other retail loans is primarily driven by delinquency status of individual loans or whether a loan has been modified, and considers any government guarantee where applicable. Leases have 3 to 5 year terms. Commercial lease s may include high dollar assets such as aircraft or lower cost items such as office equipment. end-of-term Residual values on leased assets are reviewed regularly for impairment. Residual valuations for retail leases are based on independent assessments of expected used automobile sale prices at the end of the lease term. Impairment tests are conducted based on these valuations considering the probability of the lessee returning the asset to the Company, re-marketing end-of-term off-lease The Company, as lessee, leases certain assets for use in its operations. Leased assets primarily include retail branches, operations centers and other corporate locations, and, to a lesser extent, office and computer equipment. For each lease with an original term greater than 12 months, the Company records a lease liability and a corresponding right of use (“ROU”) asset. The Company accounts for the lease and non-lease Certain of the Company’s real estate leases include options to extend. Lease extension options are generally exercisable at market rates. Such option periods do not provide a significant incentive, and their exercise is not reasonably certain. Accordingly, the Company does not recognize payments occurring during option periods in the calculation of its ROU assets and lease liabilities. Other Real Estate Loans Held For Sale Loans held for sale (“LHFS”) represent mortgage loans intended to be sold in the secondary market and other loans that management has an active plan to sell. LHFS are carried at the lower-of-cost-or-fair Where an election is made to carry the LHFS at fair value, any change in fair value is recognized in noninterest income. Where an election is made to carry LHFS at lower-of-cost-or-fair Derivative Financial Instruments In the ordinary course of business, the Company enters into derivative transactions to manage various risks and to accommodate the business requirements of its customers. Derivative instruments are reported in other assets or other liabilities at fair value. Changes in a derivative’s fair value are recognized currently in earnings unless specific hedge accounting criteria are met. All derivative instruments that qualify and are designated for hedge accounting are recorded at fair value and classified as either a hedge of the fair value of a recognized asset or liability (“fair value hedge”); a hedge of a forecasted transaction or the variability of cash flows to be received or paid related to a recognized asset or liability (“cash flow hedge”); or a hedge of the volatility of a net investment in foreign operations driven by changes in foreign currency exchange rates (“net investment hedge”). Changes in the fair value of a derivative that is highly effective and designated as a fair value hedge, and the offsetting changes in the fair value of the hedged item, are recorded in earnings. Changes in the fair value of a derivative that is highly effective and designated as a cash flow hedge are recorded in other comprehensive income (loss) until cash flows of the hedged item are realized. Changes in the fair value of net investment hedges that are highly effective are recorded in other comprehensive income (loss). The Company performs an assessment, at inception and, at a minimum, quarterly thereafter, to determine the effectiveness of the derivative in offsetting changes in the value or cash flows of the hedged item(s). If a derivative designated as a cash flow hedge is terminated or ceases to be highly effective, the gain or loss in other comprehensive income (loss) is amortized to earnings over the period the forecasted hedged transactions impact earnings. If a hedged forecasted transaction is no longer probable, hedge accounting is ceased and any gain or loss included in other comprehensive income ( l reported in earnings immediately , Revenue Recognition In the ordinary course of business, the Company recognizes income derived from various revenue generating activities. Certain revenues are generated from contracts where they are recognized when, or as services or products are transferred to customers for amounts the Company expects to be entitled. Revenue generating activities related to financial assets and liabilities are also recognized; including mortgage servicing fees, loan commitment fees, foreign currency remeasurements, and gains and losses on securities, equity investments and unconsolidated subsidiaries. Certain specific policies include the following: Credit and Debit Card Revenue Corporate Payment Products Revenue commercial card products processed through card association networks and revenue from proprietary network transactions. The Company records corporate payment products revenue as services are provided. Certain payments to credit card associations and customers are also recorded within corporate payment products revenue as services are provided. Corporate payment products revenue is recorded within the Payment Services line of business. Merchant Processing Services processing revenue also includes revenues related to point-of-sale shipped or as earned for equipment rentals. The Company records merchant processing services revenue within the Payment Services line of business. Trust and Investment Management Fees Deposit Service Charges Treasury Management Fees Commercial Products Revenue non-yield for the underwriting group. The Company recognizes only those fees and expenses related to its underwriting commitment. Mortgage Banking Revenue Mortgage banking revenue includes revenue derived from mortgages originated and subsequently sold, generally with servicing retained. The primary components include: gains and losses on mortgage sales; servicing revenue; changes in fair value for mortgage loans originated with the intent to sell and measured at fair value under the fair value option; changes in fair value for derivative commitments to purchase and originate mortgage loans; changes in the fair value of mortgage servicing rights (“MSRs”); and the impact of risk management activities associated with the mortgage origination pipeline, funded loans and MSRs. Net interest income from mortgage loans is recorded in interest income. Refer to Other Significant Policies in Note , as well as Note and Note for a further discussion of MSRs. Mortgage banking revenue is reported within the Consumer and Business Banking line of business. Investment Products Fees Investment products fees include commissions related to the execution of requested security trades, distribution fees from sale of mutual funds, and investment advisory fees. Commissions and investment advisory fees are recognized as services are delivered to and utilized by the customer. Distribution fees are received over time, are dependent on the consumer maintaining their mutual fund asset position and the value of such position. These revenues are estimated and recognized at the point a significant reversal of revenue becomes remote. Investment products fees are predominately reported within the Wealth Management and Investment Services line of business. Other Noninterest Income Other noninterest income is primarily related to financial assets including income on unconsolidated subsidiaries and equity method investments, gains on sale of other investments and corporate owned life insurance proceeds. The Company reports other noninterest income across all lines of business. Other Significant Policies Goodwill and Other Intangible Assets includes assessing the current implied fair value of the reporting unit as if it were being acquired in a business combination and comparing it to the carrying amount of the reporting unit’s goodwill. Determining the amount of other intangible asset impairment, if any, includes assessing the present value of the estimated future cash flows associated with the intangible asset and comparing it to the carrying amount of the asset. I ncome Taxes Deferred taxes are recorded to reflect the tax consequences on future years of differences between the tax basis of assets and liabilities and their financial reporting carrying amounts. The Company uses the deferral method of accounting on investments that generate investment tax credits. Under this method, the investment tax credits are recognized as a reduction to the related asset. For certain investments in qualified affordable housing projects, the Company presents the expense in tax expense rather than noninterest expense. Mortgage Servicing Rights - Pensions year-end plan assets is based on fair value adjusted for the difference between expected returns and actual performance of plan assets. The unrealized difference between actual experience and expected returns is included in expense over a period of approximately fifteen years. The overfunded or underfunded status of the plans is recorded as an asset or liability on the Consolidated Balance Sheet, with changes in that status recognized through other comprehensive income (loss). Premises and Equipment The Company, as lessee, records an ROU asset for each lease with an original term greater than 12 months. ROU assets are included in premises and equipment, with the corresponding lease liabilities included in long-term debt and other liabilities. Stock-Based Compensation Per Share Calculations two-class two-class

Accounting Changes

Accounting Changes	12 Months Ended
Accounting Changes	Dec. 31, 2019
Accounting Changes and Error Corrections [Abstract]
Accounting Changes	NOTE 2 Accounting for Leases Standards Board (“FASB”) in February 2016, related to the accounting for leases. This guidance requires lessees to recognize all leases on the Consolidated Balance Sheet as lease assets and lease liabilities based primarily on the present value of future lease payments. The Company recognized approximately $1.3 billion of lease assets and related liabilities on its Consolidated Balance Sheet at the adoption date. In addition, lessors are now required to consider lease residual exposures of sales-type and direct financing leases when determining the allowance for credit losses. The adoption of this guidance was not material to the Company’s Consolidated Statement of Income. Financial Instruments—Credit Losses Effective 1, 2020, the Company adopted accounting guidance, issued by the FASB in June 2016, related to the impairment of financial instruments. This guidance changes impairment recognition to a model that is based on expected losses rather than incurred losses, which is intended to result in more timely recognition of credit losses. This guidance is also intended to reduce the complexity of accounting guidance by decreasing the number of credit impairment models that entities use to account for debt instruments. In addition, the guidance requires additional credit quality disclosures for loans. Upon adoption, the Company increased its allowance for credit losses by approximately $ billion and reduced retained earnings net of deferred tax balances. When determining expected losses, the Company uses multiple economic scenarios and a three-year reasonable and supportable forecast period, which incorporates historical loss experience in years two and three. After the forecast period, the Company fully reverts to long-term historical loss experience, adjusted for prepayments, to estimate losses over the remaining life. The increase in the allowance was primarily related to the commercial , credit card, installment and other retail loan portfolios where the allowance for loan losses had not previously considered the full term of the loans . The adoption of this guidance did not have a material impact on the Company’s available-for-sale securities as most of this portfolio consists of U.S. Treasury and residential agency mortgage-backed securities that inherently have an immaterial risk of loss.

Restrictions on Cash and Due fr

Restrictions on Cash and Due from Banks	12 Months Ended
Restrictions on Cash and Due from Banks	Dec. 31, 2019
Text Block [Abstract]
Restrictions on Cash and Due from Banks	NOTE 3 Banks Banking regulators require bank subsidiaries to maintain minimum average reserve balances, either in the form of vault cash or reserve balances held with central banks or other financial institutions. The amount of required reserve balances were approximately $3.2 billion and $3.1 billion at December 31, 2019 and 2018, respectively, and primarily represent those required to be held at the Federal Reserve Bank. In addition to vault cash, the Company held balances at the Federal Reserve Bank and other financial institutions of $8.0 billion and $7.5 billion at December 31, 2019 and 2018, respectively, to meet these requirements. These balances are included in cash and due from banks on the Consolidated Balance Sheet.

Investment Securities

Investment Securities	12 Months Ended
Investment Securities	Dec. 31, 2019
Investments, Debt and Equity Securities [Abstract]
Investment Securities	NOTE 4 The Company’s held-to-maturity available-for-sale The amortized cost, other-than-temporary impairment recorded in other comprehensive income (loss), gross unrealized holding gains and losses, and fair value of held-to-maturity available-for-sale 2019 2018 Unrealized Losses Unrealized Losses (Dollars in Millions) Amortized Unrealized Other-than- (a) Other (b) Fair Value Amortized Unrealized Other-than- (a) Other (b) Fair Value Held-to-maturity U.S. Treasury and agencies $ – $ – $ – $ – $ – $ 5,102 $ 2 $ – $ (143 ) $ 4,961 Residential agency mortgage-backed securities – – – – – 40,920 45 – (994 ) 39,971 Asset-backed securities Collateralized debt obligations/Collateralized loan obligations – – – – – – 1 – – 1 Other – – – – – 5 2 – – 7 Obligations of state and political subdivisions – – – – – 6 1 – – 7 Obligations of foreign governments – – – – – 9 – – – 9 Other – – – – – 8 – – – 8 Total held-to-maturity $ – $ – $ – $ – $ – $ 46,050 $ 51 $ – $ (1,137 ) $ 44,964 Available-for-sale U.S. Treasury and agencies $ 19,845 $ 61 $ – $ (67 ) $ 19,839 $ 19,604 $ 11 $ – $ (358 ) $ 19,257 Mortgage-backed securities Residential agency 93,903 557 – (349 ) 94,111 40,542 120 – (910 ) 39,752 Commercial agency 1,482 – – (29 ) 1,453 2 – – – 2 Asset-backed securities Colla teralized de b g g – 1 – – 1 – – – – – Other 375 7 – – 382 397 6 – – 403 Obligations of state and political subdivisions 6,499 318 – (3 ) 6,814 6,836 37 – (172 ) 6,701 Obligations of foreign governments 9 – – – 9 – – – – – Corporate debt securities 4 – – – 4 – – – – – Total available-for-sale $ 122,117 $ 944 $ – $ (448 ) $ 122,613 $ 67,381 $ 174 $ – $ (1,440 ) $ 66,115 (a) Represents impairment not related to credit for those investment securities that have been determined to be other-than-temporarily impaired. (b) Represents unrealized losses on investment securities that have not been determined to be other-than-temporarily impaired. On December 31, 2019, the Company transferred all $43.6 billion of its held-to-maturity available-for-sale as a result of changes to regulatory capital requirements promulgated in 2019 . In addition, the Company recognized $ million of net unrealized gains on its Consolidated Balance Sheet as a result of the transfer. Investment securities with a fair value of $8.4 billion at December 31, 2019, and $10.9 billion at December 31, 2018, were pledged to secure public, private and trust deposits, repurchase agreements and for other purposes required by contractual obligation or law. Included in these amounts were securities where the Company and certain counterparties have agreements granting the counterparties the right to sell or pledge the securities. Investment securities securing these types of arrangements had a fair value of $269 m The following table provides information about the amount of interest income from taxable and non-taxable Year Ended December 31 (Dollars in Millions) 2019 2018 2017 Taxable $ 2,680 $ 2,396 $ 2,043 Non-taxable 213 220 189 Total interest income from investment securities $ 2,893 $ 2,616 $ 2,232 The following table provides information about the amount of gross gains and losses realized through the sales of available-for-sale Year Ended December 31 (Dollars in Millions) 2019 2018 2017 Realized gains $ 99 $ 30 $ 75 Realized losses (26 ) – (18 ) Net realized gains (losses) $ 73 $ 30 $ 57 Income tax (benefit) on net realized gains (losses) $ 18 $ 7 $ 22 At December 31, 2019, certain investment securities had a fair value below amortized cost. available -for-sale Less Than 12 Months 12 Months or Greater Total (Dollars in Millions) Fair Unrealized Fair Unrealized Fair Unrealized U.S. Treasury and agencies $ 3,869 $ (40 ) $ 6,265 $ (27 ) $ 10,134 $ (67 ) Residential agency mortgage-backed securities 16,292 (46 ) 24,346 (303 ) 40,638 (349 ) Commercial agency mortgage-backed securities 1,453 (29 ) – – 1,453 (29 ) Other asset-backed securities – – 2 – 2 – Obligations of state and political subdivisions 365 (3 ) – – 365 (3 ) Corporate debt securities 4 – – – 4 – Total investment securities $ 21,983 $ (118 ) $ 30,613 $ (330 ) $ 52,596 $ (448 ) The following table provides information about the amortized cost, fair value and yield by maturity date of the available-for-sale (Dollars in Millions) Amortized Fair Weighted- in Weighted- (e) U.S. Treasury and Agencies Maturing in one year or less $ 4,243 $ 4,242 .6 1.61 % Maturing after one year through five years 12,881 12,901 2.4 1.65 Maturing after five years through ten years 2,721 2,696 7.5 1.95 Maturing after ten years – – – – Total $ 19,845 $ 19,839 2.7 1.68 % Mortgage-Backed Securities (a) Maturing in one year or less $ 197 $ 197 .7 2.28 % Maturing after one year through five years 66,940 67,102 3.6 2.30 Maturing after five years through ten years 27,339 27,349 6.0 2.58 Maturing after ten years 909 916 11.4 2.76 Total $ 95,385 $ 95,564 4.4 2.39 % Asset-Backed Securities (a) Maturing in one year or less $ – $ – – — % Maturing after one year through five years 374 381 3.1 3.09 Maturing after five years through ten years 1 1 6.1 2.56 Maturing after ten years – 1 15.3 2.41 Total $ 375 $ 383 3.1 3.09 % Obligations of State and Political Subdivisions (b)(c) Maturing in one year or less $ 66 $ 66 .1 5.81 % Maturing after one year through five years 695 722 3.0 4.50 Maturing after five years through ten years 5,720 6,004 7.1 4.24 Maturing after ten years 18 22 14.0 6.15 Total $ 6,499 $ 6,814 6.6 4.29 % Other Maturing in one year or less $ 13 $ 13 .3 2.66 % Maturing after one year through five years – – – – Maturing after five years through ten years – – – – Maturing after ten years – – – – Total $ 13 $ 13 .3 2.66 % Total investment securities (d) $ 122,117 $ 122,613 4.2 2.38 % (a) Information related to asset and mortgage-backed securities included above is presented based upon weighted-average maturities that take into account anticipated future prepayments. (b) Information related to obligations of state and political subdivisions is presented based upon yield to first optional call date if the security is purchased at a premium, and yield to maturity if the security is purchased at par or a discount. (c) Maturity calculations for obligations of state and political subdivisions are based on the first optional call date for securities with a fair value above par and the contractual maturity date for securities with a fair value equal to or below par. (d) The weighted-average maturity of total available-for-sale and held-to-maturity investment securities was 5.3 years at December 31, 2018, with a corresponding weighted-average yield of 2.52 percent. (e) Weighted-average yields for obligations of state and political subdivisions are presented on a fully-taxable equivalent basis based on a federal income tax rate of 21 percent. Yields on investment securities are computed based on amortized cost balances, excluding any premiums or discounts recorded related to the transfer of investment securities at fair value from available-for-sale to held-to-maturity.

Loans and Allowance for Credit

Loans and Allowance for Credit Losses	12 Months Ended
Loans and Allowance for Credit Losses	Dec. 31, 2019
Receivables [Abstract]
Loans and Allowance for Credit Losses	NOTE 5 The composition of the loan portfolio at December 31, disaggregated by class and underlying specific portfolio type, was as follows: (Dollars in Millions) 2019 2018 Commercial Commercial $ 98,168 $ 96,849 Lease financing 5,695 5,595 Total commercial 103,863 102,444 Commercial Real Estate Commercial mortgages 29,404 28,596 Construction and development 10,342 10,943 Total commercial real estate 39,746 39,539 Residential Mortgages Residential mortgages 59,865 53,034 Home equity loans, first liens 10,721 12,000 Total residential mortgages 70,586 65,034 Credit Card 24,789 23,363 Other Retail Retail leasing 8,490 8,546 Home equity and second mortgages 15,036 16,122 Revolving credit 2,899 3,088 Installment 11,038 9,676 Automobile 19,435 18,719 Student 220 279 Total other retail 57,118 56,430 Total loans $ 296,102 $ 286,810 The Company had loans of $96.2 billion at December 31, 2019, and $88.7 billion at December 31, 2018, pledged at the Federal Home Loan Bank, and loans of $76.3 billion at December 31, 2019, and $ 70.1 The Company offers a broad array of lending products to consumer and commercial customers, in various industries, across several geographical locations, predominately in the states in which it has Consumer and Business Banking offices. Collateral for commercial and commercial real estate loans may include marketable securities, accounts receivable, inventory, equipment, real estate, or the related property. Originated loans are reported at the principal amount outstanding, net of unearned interest and deferred fees and costs, and any partial charge-offs recorded. Net unearned interest and deferred fees and costs amounted to $781 million at December 31, 2019 and $872 million at December 31, 2018. All purchased loans are recorded at fair value at the date of purchase. The Company evaluates purchased loans for impairment at the date of purchase in accordance with applicable authoritative accounting guidance. Purchased loans with evidence of credit deterioration since origination for which it is probable that all contractually required payments will not be collected are considered “purchased impaired loans.” All other purchased loans are considered “purchased nonimpaired loans.” Allowance for Credit Losses Activity in the allowance for credit losses by portfolio class was as follows: (Dollars in Millions) Commercial Commercial Residential Credit Other Covered Total Balance at December 31 , 2018 Balance at beginning of period $ 1,454 $ 800 $ 455 $ 1,102 $ 630 $ – $ 4,441 Add Provision for credit losses 315 13 (19 ) 919 276 – 1,504 Deduct Loans charged-off 399 21 34 1,028 385 – 1,867 Less recoveries of loans charged-off (114 ) (7 ) (31 ) (135 ) (126 ) – (413 ) Net loans charged-off 285 14 3 893 259 – 1,454 Balance at December 31 , 2019 $ 1,484 $ 799 $ 433 $ 1,128 $ 647 $ – $ 4,491 Balance at December 31 , 2017 Balance at beginning of period $ 1,372 $ 831 $ 449 $ 1,056 $ 678 $ 31 $ 4,417 Add Provision for credit losses 333 (50 ) 23 892 211 (30 ) 1,379 Deduct Loans charged-off 350 9 48 970 383 – 1,760 Less recoveries of loans charged-off (99 ) (28 ) (31 ) (124 ) (124 ) – (406 ) Net loans charged-off 251 (19 ) 17 846 259 – 1,354 Other changes (a) – – – – – (1 ) (1 ) Balance at December 31 , 2018 $ 1,454 $ 800 $ 455 $ 1,102 $ 630 $ – $ 4,441 Balance at December 31 , 2016 Balance at beginning of period $ 1,450 $ 812 $ 510 $ 934 $ 617 $ 34 $ 4,357 Add Provision for credit losses 186 19 (24 ) 908 304 (3 ) 1,390 Deduct Loans charged-off 414 30 65 887 355 – 1,751 Less recoveries of loans charged-off (150 ) (30 ) (28 ) (101 ) (112 ) – (421 ) Net loans charged-off 264 – 37 786 243 – 1,330 Balance at December 31 , 2017 $ 1,372 $ 831 $ 449 $ 1,056 $ 678 $ 31 $ 4,417 (a) Includes net changes in credit losses to be reimbursed by the FDIC and reductions in the allowance for covered loans where the reversal of a previously recorded allowance was offset by an associated decrease in the indemnification asset, and the impact of any loan sales. Additional detail of the allowance for credit losses by portfolio class was as follows: (Dollars in Millions) Commercial Commercial Residential Credit Other Total Allowance Balance at December 31, 2019 Related to Loans individually evaluated for impairment (a) $ 16 $ 3 $ – $ – $ – $ 19 TDRs collectively evaluated for impairment 20 3 109 81 10 223 Other loans collectively evaluated for impairment 1,448 793 309 1,047 637 4,234 Loans acquired with deteriorated credit quality – – 15 – – 15 Total allowance for credit losses $ 1,484 $ 799 $ 433 $ 1,128 $ 647 $ 4,491 Allowance Balance at December 31, 2018 Related to Loans individually evaluated for impairment (a) $ 16 $ 8 $ – $ – $ – $ 24 TDRs collectively evaluated for impairment 15 3 126 69 12 225 Other loans collectively evaluated for impairment 1,423 788 314 1,033 618 4,176 Loans acquired with deteriorated credit quality – 1 15 – – 16 Total allowance for credit losses $ 1,454 $ 800 $ 455 $ 1,102 $ 630 $ 4,441 (a) Represents the allowance for credit losses related to loans greater than $5 million classified as nonperforming or TDRs. Additional detail of loan balances by portfolio class was as follows: (Dollars in Millions) Commercial Commercial Residential Credit Other Total Loans December 31 , 2019 Loans individually evaluated for impairment (a) $ 253 $ 61 $ – $ – $ – $ 314 TDRs collectively evaluated for impairment 163 138 3,044 263 185 3,793 Other loans collectively evaluated for impairment 103,447 39,513 67,315 24,526 56,933 291,734 Loans acquired with deteriorated credit quality – 34 227 – – 261 Total loans $ 103,863 $ 39,746 $ 70,586 $ 24,789 $ 57,118 $ 296,102 December 31 , 2018 Loans individually evaluated for impairment (a) $ 262 $ 86 $ – $ – $ – $ 348 TDRs collectively evaluated for impairment 151 129 3,252 245 183 3,960 Other loans collectively evaluated for impairment 102,031 39,297 61,465 23,118 56,247 282,158 Loans acquired with deteriorated credit quality – 27 317 – – 344 Total loans $ 102,444 $ 39,539 $ 65,034 $ 23,363 $ 56,430 $ 286,810 (a) Represents loans greater than $5 million classified as nonperforming or TDRs. Credit Quality The following table provides a summary of loans by portfolio class, including the delinquency status of those that continue to accrue interest, and those that are nonperforming: Accruing (Dollars in Millions) Current 30-89 Days 90 Days or Nonperforming Total December 31, 2019 Commercial $ 103,273 $ 307 $ 79 $ 204 $ 103,863 Commercial real estate 39,627 34 3 82 39,746 Residential mortgages (a) 70,071 154 120 241 70,586 Credit card 24,162 321 306 – 24,789 Other retail 56,463 393 97 165 57,118 Total loans $ 293,596 $ 1,209 $ 605 $ 692 $ 296,102 December 31, 2018 Commercial $ 101,844 $ 322 $ 69 $ 209 $ 102,444 Commercial real estate 39,354 70 – 115 39,539 Residential mortgages (a) 64,443 181 114 296 65,034 Credit card 22,746 324 293 – 23,363 Other retail 55,722 403 108 197 56,430 Total loans $ 284,109 $ 1,300 $ 584 $ 817 $ 286,810 (a) At December 31, 2019, $ 428 430 1.7 At December 31, 2019, total nonperforming assets held by the Company OREO , At December 31, 2019, the amount of foreclosed residential real estate held by the Company, and included in OREO, was $74 million, compared with $106 million at December 31, 2018. These amounts exclude $ 155 December 31, 2019 and 2018, respectively, of foreclosed The following table provides a summary of loans by portfolio class and the Company’s internal credit quality rating: Criticized (Dollars in Millions) Pass Special Classified (a) Total Total December 31 , 2019 Commercial $ 101,850 $ 1,147 $ 866 $ 2,013 $ 103,863 Commercial real estate 38,872 484 390 874 39,746 Residential mortgages (b) 70,174 2 410 412 70,586 Credit card 24,483 – 306 306 24,789 Other retail 56,825 10 283 293 57,118 Total loans $ 292,204 $ 1,643 $ 2,255 $ 3,898 $ 296,102 Total outstanding commitments $ 619,224 $ 2,451 $ 2,873 $ 5,324 $ 624,548 December 31 , 2018 Commercial $ 100,014 $ 1,149 $ 1,281 $ 2,430 $ 102,444 Commercial real estate 38,473 584 482 1,066 39,539 Residential mortgages (b) 64,570 1 463 464 65,034 Credit card 23,070 – 293 293 23,363 Other retail 56,101 6 323 329 56,430 Total loans $ 282,228 $ 1,740 $ 2,842 $ 4,582 $ 286,810 Total outstanding commitments $ 600,407 $ 2,801 $ 3,448 $ 6,249 $ 606,656 (a) Classified rating on consumer loans primarily based on delinquency status. (b) At December 31, 2019, $1.7 billion of GNMA loans 90 days or more past due and $1.6 billion of restructured GNMA loans whose repayments are insured by the Federal Housing Administration or guaranteed by the United States Department of Veterans Affairs were classified with a pass rating, unchanged f rom . For all loan classes, a loan is considered to be impaired when, based on current events or information, it is probable the Company will be unable to collect all amounts due per the contractual terms of the loan agreement. A summary of impaired loans, which include all nonaccrual and TDR loans, by portfolio class was as follows: (Dollars in Millions) Period-end (a) Unpaid Valuation Commitments December 31, 2019 Commercial $ 483 $ 1,048 $ 39 $ 158 Commercial real estate 242 603 7 – Residential mortgages 1,515 1,827 71 – Credit card 263 263 81 – Other retail 318 417 12 2 Total loans, excluding loans purchased from GNMA mortgage pools 2,821 4,158 210 160 Loans purchased from GNMA mortgage pools 1,622 1,622 39 – Total $ 4,443 $ 5,780 $ 249 $ 160 December 31, 2018 Commercial $ 467 $ 1,006 $ 32 $ 106 Commercial real estate 279 511 12 2 Residential mortgages 1,709 1,879 86 – Credit card 245 245 69 – Other retail 335 418 14 5 Total loans, excluding loans purchased from GNMA mortgage pools 3,035 4,059 213 113 Loans purchased from GNMA mortgage pools 1,639 1,639 41 – Total $ 4,674 $ 5,698 $ 254 $ 113 (a) Substantially all loans classified as impaired at December 31, 2019 and 2018, had an associated allowance for credit losses. The total amount of interest income recognized during 2019 on loans classified as impaired at December 31, 2019, excluding those acquired with deteriorated credit quality, was $ 194 246 Additional information on impaired loans follows for the years ended December 31 follows: (Dollars in Millions) Average Interest 2019 Commercial $ 520 $ 9 Commercial real estate 248 11 Residential mortgages 1,622 92 Credit card 257 – Other retail 323 12 Total loans, excluding loans purchased from GNMA mortgage pools 2,970 124 Loans purchased from GNMA mortgage pools 1,638 70 Total $ 4,608 $ 194 2018 Commercial $ 497 $ 8 Commercial real estate 273 13 Residential mortgages 1,817 76 Credit card 236 3 Other retail 309 16 Covered Loans 25 1 Total loans, excluding loans purchased from GNMA mortgage pools 3,157 117 Loans purchased from GNMA mortgage pools 1,640 47 Total $ 4,797 $ 164 2017 Commercial $ 683 $ 7 Commercial real estate 273 11 Residential mortgages 2,135 103 Credit card 229 3 Other retail 287 14 Covered Loans 37 1 Total loans, excluding loans purchased from GNMA mortgage pools 3,644 139 Loans purchased from GNMA mortgage pools 1,672 65 Total $ 5,316 $ 204 Troubled Debt Restructurings (Dollars in Millions) Number Pre-Modification Balance Post- Modification Outstanding Balance 2019 Commercial 3,445 $ 376 $ 359 Commercial real estate 136 129 125 Residential mortgages 417 55 54 Credit card 34,247 185 186 Other retail 2,952 63 61 Total loans, excluding loans purchased from GNMA mortgage pools 41,197 808 785 Loans purchased from GNMA mortgage pools 6,257 856 827 Total loans 47,454 $ 1,664 $ 1,612 2018 Commercial 2,824 $ 336 $ 311 Commercial real estate 127 168 169 Residential mortgages 526 73 69 Credit card 33,318 169 171 Other retail 2,462 58 55 Covered Loans 3 1 1 Total loans, excluding loans purchased from GNMA mortgage pools 39,260 805 776 Loans purchased from GNMA mortgage pools 6,268 821 803 Total loans 45,528 $ 1,626 $ 1,579 2017 Commercial 2,758 $ 380 $ 328 Commercial real estate 128 82 78 Residential mortgages 800 90 88 Credit card 33,615 161 162 Other retail 3,881 79 68 Covered Loans 11 2 2 Total loans, excluding loans purchased from GNMA mortgage pools 41,193 794 726 Loans purchased from GNMA mortgage pools 6,791 881 867 Total loans 47,984 $ 1,675 $ 1,593 The following table provides a summary of TDR loans that defaulted (fully or partially charged-off (Dollars in Millions) Number Amount 2019 Commercial 1,040 $ 46 Commercial real estate 36 24 Residential mortgages 137 15 Credit card 8,273 40 Other retail 380 10 Total loans, excluding loans purchased from GNMA mortgage pools 9,866 135 Loans purchased from GNMA mortgage pools 997 131 Total loans 10,863 $ 266 2018 Commercial 836 $ 71 Commercial real estate 39 15 Residential mortgages 191 18 Credit card 8,012 35 Other retail 334 5 Covered loans 1 – Total loans, excluding loans purchased from GNMA mortgage pools 9,413 144 Loans purchased from GNMA mortgage pools 1,447 187 Total loans 10,860 $ 331 2017 Commercial 724 $ 53 Commercial real estate 36 9 Residential mortgages 374 41 Credit card 8,372 36 Other retail 415 5 Covered loans 4 – Total loans, excluding loans purchased from GNMA mortgage pools 9,925 144 Loans purchased from GNMA mortgage pools 1,369 177 Total loans 11,294 $ 321

Leases

Leases	12 Months Ended
Leases	Dec. 31, 2019
Text Block [Abstract]
Leases	NOTE 6 The Company, as a lessor, originates retail and commercial leases either directly to the consumer or indirectly through dealer networks. Retail leases consist primarily of while c such The components of the net investment in sales-type and direct financing leases, at December 31, were as follows: (Dollars in Millions) 2019 2018 Lease receivables $ 12,324 $ 12,207 Unguaranteed residual values accruing to the lessor’s benefit 1,834 1,877 Total net investment in sales-type and direct financing leases $ 14,158 $ 14,084 The contractual future lease payments to be received by the Company, at December 31, 2019, were as follows: (Dollars in Millions) Sales-type and Operating leases 2020 $ 4,755 $ 176 2021 3,729 142 2022 2,766 103 2023 1,248 69 2024 382 50 Thereafter 483 52 Total lease payments 13,363 $ 592 Amounts representing interest (1,039 ) Lease receivables $ 12,324 The Company, as lessee, leases certain assets for use in its operations. Leased assets primarily include retail branches, operations centers and other corporate locations, and, to a lesser extent, office and computer equipment. For each lease with an original term greater than 12 months, the Company records a lease liability and a corresponding right of use (“ROU”) asset. At December 31, 2019, the Company’s ROU assets included in premises and equipment and lease liabilities included in long-term debt and other liabilities, were $1.3 billion and $1.4 billion, respectively. Total costs incurred by the Company, as a lessee, were $394 million for the year ended December 31, 2019, and principally related to contractual lease payments on operating leases. The Company’s leases do not impose significant covenants or other restrictions on the Company. The following table presents amounts relevant to the Company’s assets leased for use in its operations for the year ended December 31, 2019 (Dollars in Millions) Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from operating leases $ 302 Operating cash flows from finance leases 7 Financing cash flows from finance leases 10 Right of use assets obtained in exchange for new operating lease liabilities 134 Right of use assets obtained in exchange for new finance lease liabilities 10 The following table presents the weighted-average remaining lease terms and discount rates of the Company’s assets leased for use in its operations at December 31, 2019: Weighted-average remaining lease term of operating leases (in years) 7.4 Weighted-average remaining lease term of finance leases (in years) 10.7 Weighted-average discount rate of operating leases 3.2 % Weighted-average discount rate of finance leases 14.3 % The contractual future lease obligations of the Company at December 31, 2019, were as follows: (Dollars in Millions) Operating leases Finance leases 2020 $ 296 $ 17 2021 267 15 2022 226 13 2023 180 12 2024 132 10 Thereafter 391 38 Total lease payments 1,492 105 Amounts representing interest (150 ) (31 ) Lease liabilities $ 1,342 $ 74

Accounting for Transfers and Se

Accounting for Transfers and Servicing of Financial Assets and Variable Interest Entities	12 Months Ended
	Dec. 31, 2019
Accounting Policies [Abstract]
Accounting for Transfers and Servicing of Financial Assets and Variable Interest Entities	NOTE 7 Entities The Company transfers financial assets in the normal course of business. The majority of the Company’s financial asset transfers are residential mortgage loan sales primarily to government-sponsored enterprises (“GSEs”), transfers of tax-advantaged For loans sold under participation agreements, the Company also considers whether the terms of the loan participation agreement meet the accounting definition of a participating interest. With the exception of servicing and certain performance-based guarantees, the Company’s continuing involvement with financial assets sold is minimal and generally limited to market customary representation and warranty clauses. Any gain or loss on sale depends on the previous carrying amount of the transferred financial assets, the consideration received, and any liabilities incurred in exchange for the transferred assets. Upon transfer, any servicing assets and other interests that continue to be held by the Company are initially recognized at fair value. For further information on MSRs, refer to Note 9. On a limited basis, the Company may acquire and package high-grade corporate bonds for select corporate customers, in which the Company generally has no continuing involvement with these transactions. Additionally, the Company is an authorized GNMA issuer and issues GNMA securities on a regular basis. The Company has no other asset securitizations or similar asset-backed financing arrangements that are off-balance The Company also provides financial support primarily through the use of waivers of trust and investment management fees associated with various unconsolidated registered money market funds it manages. The Company provided $30 million, $25 million, and $23 million of support to the funds during the years ended December 31, 2019, 2018 and 2017, respectively. The Company is involved in various entities that are considered to be VIEs. The Company’s investments in VIEs are primarily related to investments promoting affordable housing, community development and renewable energy sources. Some of these tax-advantaged tax-advantaged , respectively, The Company is not required to consolidate VIEs in which it has concluded it does not have a controlling financial interest, and thus is not the primary beneficiary. In such cases, the Company does not have both the power to direct the entities’ most significant activities and the obligation to absorb losses or the right to receive benefits that could potentially be significant to the VIEs. The Company’s investments in these unconsolidated VIEs are carried in other assets on the Consolidated Balance Sheet. The Company’s unfunded capital and other commitments related to these unconsolidated VIEs are generally carried in other liabilities on the Consolidated Balance Sheet. The Company’s maximum exposure to loss from these unconsolidated VIEs include the investment recorded on the Company’s Consolidated Balance Sheet, net of unfunded capital commitments, and previously recorded tax credits which remain subject to recapture by taxing authorities based on compliance features required to be met at the project level. While the Company believes potential losses from these investments are remote, the maximum exposure was determined by assuming a scenario where the community-based business and housing projects completely fail and do not meet certain government compliance requirements resulting in recapture of the related tax credits. The following table provides a summary of investments in community development and tax-advantaged At December 31 (Dollars in Millions) 2019 2018 Investment carrying amount $ 6,148 $ 5,823 Unfunded capital and other commitments 2,938 2,778 Maximum exposure to loss 12,118 12,360 The Company also has noncontrolling financial investments in private investment funds and partnerships considered to be VIEs, which are not consolidated. The Company’s recorded investment in these entities, carried in other assets on the Consolidated Balance Sheet, was approximately $31 million at December 31, 2019 and $27 million at December 31, 2018. The maximum exposure to loss related to these VIEs was $55 million at December 31, 2019 and $52 million at December 31, 2018, representing the Company’s investment balance and its unfunded commitments to invest additional amounts. The Company’s individual net investments in unconsolidated VIEs, which exclude any unfunded capital commitments, ranged from less than $1 million to $87 million at December 31, 2019, compared with less than $1 million to $95 million at December 31, 2018. The Company is required to consolidate VIEs in which it has concluded it has a controlling financial interest. The Company tax-advantage d 2019, approximately $4.0 billion of the Company’s assets and $3.2 billion of its liabilities included on the Consolidated Balance Sheet were related to community development and tax-advantaged The Company also sponsors a conduit to which it previously transferred high-grade investment securities. The Company consolidates the conduit because of its ability to manage the activities of the conduit. At December 31, 2019, $12 million of the available-for-sale of the held-to-maturity investment securities In addition, the Company sponsors a municipal bond securities tender option bond program. The Company controls the activities of the program’s entities, is entitled to the residual returns and provides liquidity and remarketing arrangements to the program. As a result, the Company has consolidated the program’s entities. At December 31, 2019, $3.0 billion of available-for-sale available-for-sale

Premises and Equipment

Premises and Equipment	12 Months Ended
Premises and Equipment	Dec. 31, 2019
Property, Plant and Equipment [Abstract]
Premises and Equipment	NOTE 8 Premises and equipment at December 31 consisted of the following: (Dollars in Millions) 2019 2018 Land $ 504 $ 515 Buildings and improvements 3,513 3,481 Furniture, fixtures and equipment 3,366 3,110 Right of use assets on operating leases 1,141 – Right of use assets on finance leases 111 121 Construction in progress 21 20 8,656 7,247 Less accumulated depreciation and amortization (4,954 ) (4,790 ) Total $ 3,702 $ 2,457

Mortgage Servicing Rights

Mortgage Servicing Rights	12 Months Ended
Mortgage Servicing Rights	Dec. 31, 2019
Text Block [Abstract]
Mortgage Servicing Rights	NOTE 9 from market rate and model assumption changes, net of the value change in derivatives used to economically hedge MSRs. These changes resulted in a net loss of $24 million and net gains of $47 million and $15 million for the years ended December 31, 2019, 2018 and Changes in fair value of capitalized MSRs for the years ended December 31, are summarized as follows: (Dollars in Millions) 2019 2018 2017 Balance at beginning of period $ 2,791 $ 2,645 $ 2,591 Rights purchased 20 8 13 Rights capitalized 559 397 445 Rights sold (a) 5 (27 ) – Changes in fair value of MSRs Due to fluctuations in market interest rates ( b (390 ) 98 (23 ) Due to revised assumptions or models ( c 23 56 18 Other changes in fair value ( d (462 ) (386 ) (399 ) Balance at end of period $ 2,546 $ 2,791 $ 2,645 (a) MSRs sold in 2019 include those having a negative fair value, resulting from the related loans being severely delinquent. (b) Includes changes in MSR value associated with changes in market interest rates, including estimated prepayment rates and anticipated earnings on escrow deposits. (c) Includes changes in MSR value not caused by changes in market interest rates, such as changes in cost to service, ancillary income and option adjusted spread, as well as the impact of any model changes. (d) Primarily represents changes due to realization of expected cash flows over time (decay). The estimated sensitivity to changes in interest rates of the fair value of the MSR portfolio and the related derivative instruments as of December 31 follows: 2019 2018 (Dollars in Millions) Down Down Down Up Up Up 100 bps Down Down Down Up Up Up MSR portfolio $ (663 ) $ (316 ) $ (153 ) $ 141 $ 269 $ 485 $ (501 ) $ (223 ) $ (105 ) $ 92 $ 171 $ 295 Derivative instrument hedges 613 306 152 (143 ) (279 ) (550 ) 455 215 104 (94 ) (177 ) (321 ) Net sensitivity $ (50 ) $ (10 ) $ (1 ) $ (2 ) $ (10 ) $ (65 ) $ (46 ) $ (8 ) $ (1 ) $ (2 ) $ (6 ) $ (26 ) The fair value of MSRs and their sensitivity to changes in interest rates is influenced by the mix of the servicing portfolio and characteristics of each segment of the portfolio. The Company’s servicing portfolio consists of the distinct portfolios of government-insured mortgages, conventional mortgages and Housing Finance Agency (“HFA”) mortgages. The servicing portfolios are predominantly comprised of fixed-rate agency loans with limited adjustable-rate or jumbo mortgage loans. The HFA servicing portfolio is comprised of loans originated under state and local housing authority program guidelines which assist purchases by first-time or low- A summary of the Company’s MSRs and related characteristics by portfolio as of December 31 follows: 2019 2018 (Dollars in Millions) HFA Government Conventional (d) Total HFA Government Conventional (d) Total Servicing portfolio (a) $ 44,906 $ 35,302 $ 143,310 $ 223,518 $ 44,384 $ 35,990 $ 148,910 $ 229,284 Fair value $ 486 $ 451 $ 1,609 $ 2,546 $ 526 $ 465 $ 1,800 $ 2,791 Value (bps) (b) 108 128 112 114 119 129 121 122 Weighted-average servicing fees (bps) 34 39 28 31 34 36 27 30 Multiple (value/servicing fees) 3.15 3.29 4.00 3.67 3.45 3.63 4.52 4.11 Weighted-average note rate 4.65 % 3.99 % 4.07 % 4.17 % 4.59 % 3.97 % 4.06 % 4.15 % Weighted-average age (in years) 3.7 4.9 4.8 4.6 3.3 4.7 4.5 4.3 Weighted-average expected prepayment (constant prepayment rate) 12.2 % 13.7 % 12.2 % 12.4 % 9.8 % 11.0 % 9.1 % 9.5 % Weighted-average expected life (in years) 6.5 5.7 5.9 6.0 7.7 6.7 7.1 7.2 Weighted-average option adjusted spread (c) 8.4 % 7.9 % 6.9 % 7.3 % 8.6 % 8.3 % 7.2 % 7.6 % (a) Represents principal balance of mortgages having corresponding MSR asset. (b) Calculated as fair value divided by the servicing portfolio. (c) Option adjusted spread is the incremental spread added to the risk-free rate to reflect optionality and other risk inherent in the MSRs. (d) Represents loans sold primarily to GSEs.

Intangible Assets

Intangible Assets	12 Months Ended
Intangible Assets	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	NOTE 10 Intangible assets consisted of the following: At December 31 (Dollars in Millions) Estimated Life (a) Amortization Method (b) Balance 2019 2018 Goodwill (c) $ 9,655 $ 9,369 Merchant processing contracts 6 years/7 years SL/AC 225 155 Core deposit benefits 22 years/5 years SL/AC 82 104 Mortgage servicing rights (c) 2,546 2,791 Trust relationships 10 years/7 years SL/AC 27 34 Other identified intangibles 6 years/4 years SL/AC 343 308 Total $ 12,878 $ 12,761 (a) Estimated life represents the amortization period for assets subject to the straight line method and the weighted - (b) Amortization methods: SL = straight line method AC = accelerated methods generally based on cash flows (c) Goodwill is evaluated for impairment, but not amortized. Mortgage servicing rights are recorded at fair value, and are not amortized. Aggregate amortization expense consisted of the following: Year Ended December 31 (Dollars in Millions) 2019 2018 2017 Merchant processing contracts $ 45 $ 24 $ 24 Core deposit benefits 22 26 30 Trust relationships 10 11 14 Other identified intangibles 91 100 107 Total $ 168 $ 161 $ 175 The estimated amortization expense for the next five years is as follows: (Dollars in Millions) 2020 $ 155 2021 130 2022 109 2023 76 2024 60 The following table reflects the changes in the carrying value of goodwill for the years ended December 31, 2019, 2018 and 2017: (Dollars in Millions) Corporate and Consumer and Wealth Management and Payment Treasury and Consolidated Balance at December 31, 2016 $ 1,647 $ 3,681 $ 1,566 $ 2,450 $ – $ 9,344 Goodwill acquired – – – 62 – 62 Foreign exchange translation and other – – 3 25 – 28 Balance at December 31, 2017 $ 1,647 $ 3,681 $ 1,569 $ 2,537 $ – $ 9,434 Goodwill acquired – – – 105 – 105 Disposal – (155 ) – – – (155 ) Foreign exchange translation and other – (51 ) 49 (13 ) – (15 ) Balance at December 31, 2018 $ 1,647 $ 3,475 $ 1,618 $ 2,629 $ – $ 9,369 Goodwill acquired – – – 285 – 285 Foreign exchange translation and other – – (1 ) 2 – 1 Balance at December 31, 2019 $ 1,647 $ 3,475 $ 1,617 $ 2,916 $ – $ 9,655

Deposits

Deposits	12 Months Ended
Deposits	Dec. 31, 2019
Banking and Thrift [Abstract]
Deposits	NOTE 11 The composition of deposits at December 31 was as follows: (Dollars in Millions) 2019 2018 Noninterest-bearing deposits $ 75,590 $ 81,811 Interest-bearing deposits Interest checking 75,949 73,994 Money market savings 120,082 100,396 Savings accounts 47,401 44,720 Time deposits 42,894 44,554 Total interest-bearing deposits 286,326 263,664 Total deposits $ 361,916 $ 345,475 The maturities of time deposits outstanding at December 31, 2019 were as follows: (Dollars in Millions) 2020 $ 37,731 2021 2,700 2022 1,183 2023 673 2024 602 Thereafter 5 Total $ 42,894

Short-Term Borrowings

Short-Term Borrowings	12 Months Ended
Short-Term Borrowings	Dec. 31, 2019
Debt Disclosure [Abstract]
Short-Term Borrowings	NOTE 12 Short-Term Borrowings (a) The following table is a summary of short-term borrowings for the last three years: 2019 2018 2017 (Dollars in Millions) Amount Rate Amount Rate Amount Rate At year-end Federal funds purchased $ 828 1.45 % $ 458 2.05 % $ 252 . 77 % Securities sold under agreements to repurchase 1,165 1.41 2,582 2.20 803 . 61 Commercial paper 7,576 1.07 6,940 1.35 8,303 . 68 Other short-term borrowings 14,154 1.94 4,159 2.68 7,293 2.13 Total $ 23,723 1.62 % $ 14,139 1.92 % $ 16,651 1.31 % Average for the year Federal funds purchased $ 1,457 1.94 % $ 1,070 1.70 % $ 528 . 86 % Securities sold under agreements to repurchase 1,770 2.00 2,279 1.87 917 . 44 Commercial paper 8,186 1.45 6,929 . 94 8,236 . 49 Other short-term borrowings 6,724 2.78 11,512 2.27 5,341 1.90 Total $ 18,137 2.04 % $ 21,790 1.78 % $ 15,022 1.00 % Maximum month-end Federal funds purchased $ 3,629 $ 4,532 $ 600 Securities sold under agreements to repurchase 2,755 3,225 927 Commercial paper 9,431 7,846 9,950 Other short-term borrowings 14,154 16,588 7,293 (a) Interest and rates are presented on a fully taxable-equivalent basis utilizing a tax rate of 21 percent for 2019 and 2018 and 35 percent for 2017.

Long-Term Debt

Long-Term Debt	12 Months Ended
Long-Term Debt	Dec. 31, 2019
Debt Disclosure [Abstract]
Long-Term Debt	NOTE 13 Long-Term Debt Long-term debt (debt with original one consisted (Dollars in Millions) Rate Rate (a) Maturity Date 2019 2018 U.S. Bancorp (Parent Company) Subordinated notes Fixed 2.950 % 2022 $ 1,300 $ 1,300 Fixed 3.600 % 2024 1,000 1,000 Fixed 7.500 % 2026 199 199 Fixed 3.100 % 2026 1,000 1,000 Fixed 3.000 % 2029 1,000 – Medium-term notes Fixed .850 % 2021 2028 13,820 12,345 Floating 2.576 % 2022 250 500 Other (b) 33 (53 ) Subtotal 18,602 16,291 Subsidiaries Federal Home Loan Bank advances Fixed 1.250% - 8.250 % 2020 2026 1,106 307 Floating 2.165% - 2.461 % 2022 2026 3,272 4,272 Bank notes Fixed 1.950% - 3.450 % 2020 2025 9,550 11,600 Floating .600 % 2020 2059 6,789 7,864 Other (c) 848 1,006 Subtotal 21,565 25,049 Total $ 40,167 $ 41,340 (a) Weighted-average interest rates of medium-term notes, Federal Home Loan Bank advances and bank notes were 2.87 percent, 2.42 percent and 2.54 percent, respectively. (b) Includes debt issuance fees and unrealized gains and losses and deferred amounts relating to derivative instruments. (c) Includes consolidated community development and tax-advantaged finance The Company has arrangements with the Federal Ho m $ 97.4 $ 98.8 Maturities of long-term debt outstanding at December 31, 2019, were: (Dollars in Millions) Parent Consolidated 2020 $ – $ 3,772 2021 2,696 9,430 2022 3,790 6,298 2023 – 2,799 2024 5,657 5,663 Thereafter 6,459 12,205 Total $ 18,602 $ 40,167

Shareholder' Equity

Shareholder' Equity	12 Months Ended
Shareholder' Equity	Dec. 31, 2019
Federal Home Loan Banks [Abstract]
Shareholders' Equity	NOTE 14 At December 31, 2019 and 2018, the Company had authority to issue 4 billion shares of common stock and 50 million shares of preferred stock. The Company had 1.5 billion and 1.6 billion shares of common stock outstanding at December 31, 2019 and 2018, respectively. The Company ha d 45 The number of shares issued and outstanding and the carrying amount of each outstanding series of the Company’s preferred stock were as follows: 2019 2018 At December 31 (Dollars in Millions) Shares Liquidation Discount Carrying Shares Liquidation Discount Carrying Series A 12,510 $ 1,251 $ 145 $ 1,106 12,510 $ 1,251 $ 145 $ 1,106 Series B 40,000 1,000 – 1,000 40,000 1,000 – 1,000 Series F 44,000 1,100 12 1,088 44,000 1,100 12 1,088 Series H 20,000 500 13 487 20,000 500 13 487 Series I 30,000 750 5 745 30,000 750 5 745 Series J 40,000 1,000 7 993 40,000 1,000 7 993 Series K 23,000 575 10 565 23,000 575 10 565 Total preferred stock (a) 209,510 $ 6,176 $ 192 $ 5,984 209,510 $ 6,176 $ 192 $ 5,984 (a) The par value of all shares issued and outstanding at December 31, 2019 and 2018, was $1.00 per share. During 2018, the Company issued depositary shares representing an ownership interest in 23,000 shares of Series K Non-Cumulative October 15, 2023 During 2017, the Company issued depositary shares representing an ownership interest in 40,000 shares of Series J Non-Cumulative the London Interbank Offered Rate (“ ”) April 15, 2027 Company to treat the full liquidation value of the Series J Preferred Stock as Tier 1 capital for purposes of the capital adequacy guidelines of the Federal Reserve Board. During 2015, the Company issued depositary shares representing an ownership interest in 30,000 shares of Series I Non-Cumulative January 15, 2021 During 2013, the Company issued depositary shares representing an ownership interest in 20,000 shares of Series H Non-Cumulative During 2012, the Company issued depositary shares representing an ownership interest in 44,000 shares of Series F Non-Cumulative January 15, 2022 During 2010, the Company issued depositary shares representing an ownership interest in 5,746 shares of Series A Non-Cumulative interest in 6,764 shares of Series A Preferred Stock to USB Capital IX, thereby settling the stock purchase contract established between the Company and USB Capital IX as part of the 2006 issuance of USB Capital IX Income Trust Securities. The preferred shares were issued to USB Capital IX for the purchase price specified in the stock forward purchase contract. The Series A Preferred Stock has a liquidation preference of $100,000 per share, no stated maturity and will not be subject to any sinking fund or other obligation of the Company. Dividends, if declared, will accrue and be payable quarterly, in arrears, at a rate per annum equal to the greater of three-month LIBOR plus 1.02 percent or 3.50 percent. The Series A Preferred Stock is redeemable at the Company’s option, subject to prior approval by the Federal Reserve Board. During 2006, the Company issued depositary shares representing an ownership interest in 40,000 shares of Series B Non-Cumulative .60 Dividends for certain of the Company’s outstanding series of preferred stock described above are, or will in the future be, calculated by reference to LIBOR. The outstanding series contain fallback provisions in the event that LIBOR is no longer published or quoted, but these fallback provisions have not yet been utilized. During 2019, 2018 and 2017, the Company repurchased shares of its common stock under various authorizations approved by its Board of Directors. As of December 31, 2019, the approximate dollar value of shares that may yet be purchased by the Company under the current Board of Directors approved authorization was $2.4 billion. The following table summarizes the Company’s common stock repurchased in each of the last three years: (Dollars and Shares in Millions) Shares Value 2019 81 $ 4,515 2018 54 2,844 2017 49 2,622 Shareholders’ equity is affected by transactions and valuations of asset and liability positions that require adjustments to accumulated other comprehensive income (loss). The reconciliation of the transactions affecting accumulated other comprehensive income (loss) included in shareholders’ equity for the years ended December 31, is as follows: (Dollars in Millions) Unrealized Gains Available-For-Sale Unrealized Gains From Available-For-Sale Held-To-Maturity Unrealized Gains Unrealized Gains Foreign Currency Total 2019 Balance at beginning of period $ (946 ) $ 14 $ 112 $ (1,418 ) $ (84 ) $ (2,322 ) Changes in unrealized gains and losses 1,693 – (229 ) (380 ) – 1,084 Unrealized gains and losses on 150 (9 ) – – – 141 Foreign currency translation adjustment (a) – – – – 26 26 Reclassification to earnings of realized gains and losses (73 ) (7 ) 11 89 – 20 Applicable income taxes (445 ) 2 55 73 (7 ) (322 ) Balance at end of period $ 379 $ – $ (51 ) $ (1,636 ) $ (65 ) $ (1,373 ) 2018 Balance at beginning of period $ (357 ) $ 17 $ 71 $ (1,066 ) $ (69 ) $ (1,404 ) Revaluation of tax related balances (b) (77 ) 4 15 (229 ) (13 ) (300 ) Changes in unrealized gains and losses (656 ) – 39 (302 ) – (919 ) Foreign currency translation adjustment (a) – – – – 3 3 Reclassification to earnings of realized gains and losses (30 ) (9 ) (5 ) 137 – 93 Applicable income taxes 174 2 (8 ) 42 (5 ) 205 Balance at end of period $ (946 ) $ 14 $ 112 $ (1,418 ) $ (84 ) $ (2,322 ) 2017 Balance at beginning of period $ (431 ) $ 25 $ 55 $ (1,113 ) $ (71 ) $ (1,535 ) Changes in unrealized gains and losses 178 – (5 ) (41 ) – 132 Foreign currency translation adjustment ( a – – – – (2 ) (2 ) Reclassification to earnings of realized gains and losses (57 ) (13 ) 30 117 – 77 Applicable income taxes (47 ) 5 (9 ) (29 ) 4 (76 ) Balance at end of period $ (357 ) $ 17 $ 71 $ (1,066 ) $ (69 ) $ (1,404 ) (a) Represents the impact of changes in foreign currency exchange rates on the Company’s investment in foreign operations and related hedges. (b) Reflects the adoption of new accounting guidance on January 1, 2018 to reclassify the impact of the reduced federal statutory rate for corporations included in 2017 tax reform legislation from accumulated other comprehensive income to retained earnings. Additional detail about the impact to net income for items reclassified out of accumulated other comprehensive income (loss) and into earnings for the years ended December 31, is as follows: Impact to Net Income Affected Line Item in the (Dollars in Millions) 2019 2018 2017 Unrealized gains (losses) on investment securities available-for-sale Realized gains (losses) on sale of investment securities $ 73 $ 30 $ 57 Total securities gains (losses), net (18 ) (7 ) (22 ) Applicable income taxes 55 23 35 Net-of-tax Unrealized gains (losses) on investment securities transferred from available-for-sale held-to-maturity Amortization of unrealized gains 7 9 13 Interest income (2 ) (2 ) (5 ) Applicable income taxes 5 7 8 Net-of-tax Unrealized gains (losses) on derivative hedges Realized gains (losses) on derivative hedges (11 ) 5 (30 ) Interest expense 3 (2 ) 11 Applicable income taxes (8 ) 3 (19 ) Net-of-tax Unrealized gains (losses) on retirement plans Actuarial gains (losses) and prior service cost (credit) amortization (89 ) (137 ) (117 ) Other noninterest expense 22 35 45 Applicable income taxes (67 ) (102 ) (72 ) Net-of-tax Total impact to net income $ (15 ) $ (69 ) $ (48 ) Regulatory Capital - Tier 1 capital is considered core capital and includes common shareholders’ equity adjusted for the aggregate impact of certain items included in other comprehensive income (loss) (“common equity tier 1 capital”), plus qualifying preferred stock, trust preferred securities and noncontrolling interests in consolidated subsidiaries subject to certain limitations. Total risk-based capital includes Tier 1 capital and other items such as subordinated debt and the allowance for credit losses. Capital measures are stated as a percentage of risk-weighted assets, which are measured based on their perceived credit and operational risks and include certain off-balance on- off-balance The following tables provide in effect, along with the actual components and ratios for the Company and its bank subsidiary , at December 31, 2019 and 2018 : U.S. Bancorp U.S. Bank National (Dollars in Millions) 2019 2018 2019 2018 Basel III standardized approach: Common shareholders’ equity $ 45,869 $ 45,045 $ 48,592 $ 47,728 Less intangible assets Goodwill (net of deferred tax liability) (8,788 ) (8,549 ) (8,806 ) (8,566 ) Other disallowed intangible assets (677 ) (601 ) (710 ) (732 ) Other (a) (691 ) (1,171 ) 38 (112 ) Total common equity tier 1 capital 35,713 34,724 39,114 38,318 Qualifying preferred stock 5,984 5,984 – – Noncontrolling interests eligible for tier 1 capital 28 36 28 36 Other (b) (4 ) (3 ) (4 ) (3 ) Total tier 1 capital 41,721 40,741 39,138 38,351 Eligible portion of allowance for credit losses 4,491 4,441 4,491 4,441 Subordinated debt and noncontrolling interests eligible for tier 2 capital 3,532 2,996 3,365 3,168 Total tier 2 capital 8,023 7,437 7,856 7,609 Total risk-based capital $ 49,744 $ 48,178 $ 46,994 $ 45,960 Risk-weighted assets $ 391,269 $ 381,661 $ 383,560 $ 374,299 Common equity tier 1 capital as a percent of risk-weighted assets 9.1 % 9.1 % 10.2 % 10.2 % Tier 1 capital as a percent of risk-weighted assets 10.7 10.7 10.2 10.2 Total risk-based capital as a percent of risk-weighted assets 12.7 12.6 12.3 12.3 Tier 1 capital as a percent of adjusted quarterly average assets (leverage ratio) 8.8 9.0 8.4 8.6 Basel III advanced approaches (c) : Common shareholders’ equity $ 45,045 $ 47,728 Less intangible assets Goodwill (net of deferred tax liability) (8,549 ) (8,566 ) Other disallowed intangible assets (601 ) (732 ) Other (a) (1,171 ) (112 ) Total common equity tier 1 capital 34,724 38,318 Qualifying preferred stock 5,984 – Noncontrolling interests eligible for tier 1 capital 36 36 Other (b) (3 ) (3 ) Total tier 1 capital 40,741 38,351 Eligible portion of allowance for credit losses 1,399 1,364 Subordinated debt and noncontrolling interests eligible for tier 2 capital 2,996 3,168 Total tier 2 capital 4,395 4,532 Total risk-based capital $ 45,136 $ 42,883 Risk-weighted assets $ 295,002 $ 287,897 Common equity tier 1 capital as a percent of risk-weighted assets 11.8 % 13.3 % Tier 1 capital as a percent of risk-weighted assets 13.8 13.3 Total risk-based capital as a percent of risk-weighted assets 15.3 14.9 Tier 1 capital as a percent of total on- off-balance 7.0 % 7.2 6.7 % 6.9 (a) Includes the impact of items included in other comprehensive income (loss), such as unrealized gains (losses) on available-for-sale (b) Includes the remaining portion of deferred tax assets not eligible for total tier 1 capital. (c) Effective December 31, 2019, the Company is no longer subject to calculating its , or its , Minimum (a) Well- Capitalized Bank Regulatory Capital Requirements 2019 Common equity tier 1 capital as a percent of risk-weighted assets 7.000 % 6.500 % Tier 1 capital as a percent of risk-weighted assets 8.500 8.000 Total risk-based capital as a percent of risk-weighted assets 10.500 10.000 Tier 1 capital as a percent of adjusted quarterly average assets (leverage ratio) 4.000 5.000 Tier 1 capital as a percent of total on- off-balance 3.000 3.000 2018 Common equity tier 1 capital as a percent of risk-weighted assets 6.375 % 6.500 % Tier 1 capital as a percent of risk-weighted assets 7.875 8.000 Total risk-based capital as a percent of risk-weighted assets 9.875 10.000 Tier 1 capital as a percent of adjusted quarterly average assets (leverage ratio) 4.000 5.000 Tier 1 capital as a percent of total on- off-balance 3.000 3.000 (a) The minimum common equity tier 1 capital, tier 1 capital and total risk-based capital ratio requirements reflect a capital conservation buffer requirement of 2.5 percent and 1.875 percent for 2019 and 2018, respectively. Banks and financial services holding companies must maintain minimum capital levels, including a capital conservation buffer requirement, to avoid limitations on capital distributions and certain discretionary compensation payments. Noncontrolling interests principally represent third - Fixed-to-Floating Non-cumulative - dividend period, such dividend shall not be cumulative and shall cease to accrue and be payable, and USB Realty Corp. will have no obligation to pay dividends accrued for such dividend period, whether or not dividends on the Series A Preferred Securities are declared for any future dividend period. The Series A Preferred Securities will be redeemable, in whole or in part, at the option of USB Realty Corp. on each fifth anniversary after the dividend payment date occurring in January 2012. Any redemption will be subject to the approval of the Office of the Comptroller of the Currency. During 2016, the Company purchased 500 shares of the Series A Preferred Securities held by third - .

Earnings Per Share

Earnings Per Share	12 Months Ended
Earnings Per Share	Dec. 31, 2019
Earnings Per Share [Abstract]
Earnings Per Share	NOTE 15 The components of earnings per share were: Year Ended December 31 (Dollars and Shares in Millions, Except Per Share Data) 2019 2018 2017 Net income attributable to U.S. Bancorp $ 6,914 $ 7,096 $ 6,218 Preferred dividends (302 ) (282 ) (267 ) Impact of preferred stock redemption (a) – – (10 ) Earnings allocated to participating stock awards (29 ) (30 ) (28 ) Net income applicable to U.S. Bancorp common shareholders $ 6,583 $ 6,784 $ 5,913 Average common shares outstanding 1,581 1,634 1,677 Net effect of the exercise and assumed purchase of stock awards 2 4 6 Average diluted common shares outstanding 1,583 1,638 1,683 Earnings per common share $ 4.16 $ 4.15 $ 3.53 Diluted earnings per common share $ 4.16 $ 4.14 $ 3.51 (a) Represents stock issuance costs originally recorded in preferred stock upon the issuance of the Company’s Series G Preferred Stock that were reclassified to retained earnings on the date the Company announced its intent to redeem the outstanding shares. Options outstanding at December 31, 2019, 2018 and 2017, to purchase 1 million common shares, were not included in the computation of diluted earnings per share for the years ended December 31, 2019, 2018 and 2017, because they were antidilutive.

Employee Benefits

Employee Benefits	12 Months Ended
Employee Benefits	Dec. 31, 2019
Retirement Benefits [Abstract]
Employee Benefits	NOTE 16 Employee Retirement Savings Plan four Pension Plans three years In general, the Company’s qualified pension plan’s funding objectives include maintaining a funded status sufficient to meet participant benefit obligations over time while reducing long-term funding requirements and pension costs. The Company has an established process for evaluating the plan, its performance and significant plan assumptions, including the assumed discount rate and the long-term rate of return (“LTROR”). Company’s Compensation and Human Resources Committee (the “Committee”), assisted by outside consultants, evaluates plan objectives, funding policies and plan investment policies considering its long-term investment time horizon and asset allocation strategies. The process also evaluates significant plan assumptions. Although plan assumptions are established annually, the Company may update its analysis on an interim basis in order to be responsive to significant events that occur during the year, such as plan mergers and amendments. The Company’s funding policy is to contribute amounts to its plan sufficient to meet the minimum funding requirements of the Employee Retirement Income Security Act of 1974, as amended by the Pension Protection Act, plus such additional amounts as the Company determines to be appropriate. The Company did no expects to contribute approximately $125 million to the plan in 2020. Any contributions made to the qualified plan are invested in accordance with established investment policies and asset allocation strategies. In addition to the funded qualified pension plan, the Company maintains a non-qualified approximately non-qualified Postretirement Welfare Plan approximately $4 million to its postretirement welfare plan in 2020. The following table summarizes the changes in benefit obligations and plan assets for the years ended December 31, and the funded status and amounts recognized in the Consolidated Balance Sheet at December 31 for the retirement plans: Pension Plans Postretirement (Dollars in Millions) 2019 2018 2019 2018 Change In Projected Benefit Obligation (a) Benefit obligation at beginning of measurement period $ 5,507 $ 5,720 $ 54 $ 68 Service cost 192 208 – – Interest cost 249 224 2 2 Participants’ contributions – – 7 8 Actuarial loss (gain) 1,100 (440 ) (4 ) (7 ) Lump sum settlements (56 ) (50 ) – – Benefit payments (163 ) (155 ) (13 ) (18 ) Federal subsidy on benefits paid – – 1 1 Benefit obligation at end of measurement period (b) $ 6,829 $ 5,507 $ 47 $ 54 Change In Fair Value Of Plan Assets (c) Fair value at beginning of measurement period $ 4,936 $ 5,482 $ 81 $ 87 Actual return on plan assets 1,095 (365 ) 6 – Employer contributions 26 24 4 5 Participants’ contributions – – 6 7 Lump sum settlements (56 ) (50 ) – – Benefit payments (163 ) (155 ) (13 ) (18 ) Fair value at end of measurement period $ 5,838 $ 4,936 $ 84 $ 81 Funded (Unfunded) Status $ (991 ) $ (571 ) $ 37 $ 27 Components Of The Consolidated Balance Sheet Noncurrent benefit asset $ – $ – $ 37 $ 27 Current benefit liability (25 ) (23 ) – – Noncurrent benefit liability (966 ) (548 ) – – Recognized amount $ (991 ) $ (571 ) $ 37 $ 27 Accumulated Other Comprehensive Income (Loss), Pretax Net actuarial gain (loss) $ (2,271 ) $ (1,981 ) $ 68 $ 66 Net prior service credit (cost) – – 14 18 Recognized amount $ (2,271 ) $ (1,981 ) $ 82 $ 84 (a) The increase and the decrease in the projected benefit obligation for 2019 and 2018, respectively, were primarily due to discount rate changes. (b) At December 31, 2019 and 2018, the accumulated benefit obligation for all pension plans was $6.2 billion and $5.0 billion. (c) The increase and the decrease in the fair value of plan assets for 2019 and 2018, respectively, were primary due to market conditions. The following table provides information for pension plans with benefit obligations in excess of plan assets at December 31: (Dollars in Millions) 2019 2018 Pension Plans with Projected Benefit Obligations in Excess of Plan Assets Projected benefit obligation $ 6,829 $ 5,507 Fair value of plan assets 5,838 4,936 Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets Accumulated benefit obligation $ 553 $ 467 Fair value of plan assets – – The following table sets forth the components of net periodic benefit cost and other amounts recognized in accumulated other comprehensive income (loss) for the years ended December 31 for the retirement plans: Pension Plans Postretirement Welfare Plan (Dollars in Millions) 2019 2018 2017 2019 2018 2017 Components Of Net Periodic Benefit Cost Service cost $ 192 $ 208 $ 187 $ – $ – $ – Interest cost 249 224 220 2 2 2 Expected return on plan assets (383 ) (379 ) (284 ) (3 ) (3 ) (3 ) Prior service cost (credit) and transition obligation (asset) amortization – – (2 ) (3 ) (3 ) (3 ) Actuarial loss (gain) amortization 98 146 127 (6 ) (6 ) (5 ) Net periodic benefit cost $ 156 $ 199 $ 248 $ (10 ) $ (10 ) $ (9 ) Other Changes In Plan Assets And Benefit Obligations Recognized In Other Comprehensive Income (Loss) Net actuarial gain (loss) arising during the year $ (388 ) $ (305 ) $ (48 ) $ 7 $ 3 $ 7 Net actuarial loss (gain) amortized during the year 98 146 127 (6 ) (6 ) (5 ) Net prior service cost (credit) and transition obligation (asset) amortized during the year – – (2 ) (3 ) (3 ) (3 ) Total recognized in other comprehensive income (loss) $ (290 ) $ (159 ) $ 77 $ (2 ) $ (6 ) $ (1 ) Total recognized in net periodic benefit cost and other comprehensive income (loss) $ (446 ) $ (358 ) $ (171 ) $ 8 $ 4 $ 8 The following table sets forth weighted - Pension Plans Postretirement (Dollars in Millions) 2019 2018 2019 2018 Discount rate (a) 3.40 % 4.45 % 2.80 % 4.05 % Cash balance interest crediting rate 3.00 3.00 * * Rate of compensation increase (b) 3.56 3.52 * * Health care cost trend rate (c) Prior to age 65 6.25 % 6.50 % After age 65 6.25 % 10.00 % (a) The discount rates were developed using a cash flow matching bond model with a modified duration for the qualified pension plan, non-qualified (b) Determined on an active liability-weighted basis. (c) The 2019 and pre-65 post-65 both * Not applicable The following table sets forth weighted - Pension Plans Postretirement Welfare Plan (Dollars in Millions) 2019 2018 2017 2019 2018 2017 Discount rate (a) 4.45 % 3.84 % 4.27 % 4.05 % 3.34 % 3.57 % Cash balance interest crediting rate 3.00 3.00 3.00 * * * Expected return on plan assets (b) 7.25 7.25 7.25 3.50 3.50 3.50 Rate of compensation increase (c) 3.52 3.56 3.58 * * * Health care cost trend rate (d) Prior to age 65 6.50 % 6.75 % 7.00 % After age 65 10.00 6.75 7.00 (a) The discount rates were developed using a cash flow matching bond model with a modified duration for the qualified pension plan, non-qualified (b) With the help of an independent pension consultant, the Company considers several sources when developing its expected long-term rates of return on plan assets assumptions, including, but not limited to, past returns and estimates of future returns given the plans’ asset allocation, economic conditions, and peer group LTROR information. The Company determines its expected long-term rates of return reflecting current economic conditions and plan assets. (c) Determined on an active liability weighted basis. (d) The 2019, 2018 and 2017 pre-65 post-65 both * Not applicable Investment Policies and Asset Allocation Generally, based on historical performance of the various investment asset classes, investments in equities have outperformed other investment classes but are subject to higher volatility. In an effort to minimize volatility, while recognizing the long-term up-side mid-small At December 31, 2019 and 2018, plan assets included an asset management arrangement with a In accordance with authoritative accounting guidance, the Company groups plan assets into a three-level hierarchy for valuation techniques used to measure their fair value based on whether the valuation inputs are observable or unobservable. Refer to Note 21 for further discussion on these levels. The assets of the qualified pension plan include investments in equity and U.S. Treasury securities whose fair values are determined based on quoted prices in active markets and are classified within Level 1 of the fair value hierarchy. The qualified pension plan also invests in U.S. agency, corporate and municipal debt securities, which are all valued based on observable market prices or data by third - The following table summarizes plan investment assets measured at fair value at December 31: Qualified Pension Plan Postretirement 2019 2018 2019 2018 (Dollars in Millions) Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Level 1 Level 1 Cash and cash equivalents $ 58 $ – $ – $ 58 $ 54 $ – $ – $ 54 $ 40 $ 42 Debt securities 727 1,073 – 1,800 631 904 – 1,535 – – Corporate s Real estate equity securities (a) – – – – 109 – – 109 – – Mutual funds Debt securities – 304 – 304 – 295 – 295 – – Emerging markets equity securities – 136 – 136 – 113 – 113 – – Other – – 3 3 – – 3 3 – – $ 785 $ 1,513 $ 3 2,301 $ 794 $ 1,312 $ 3 2,109 40 42 Plan investment assets not classified in fair value hierarchy (b) Collective investment funds Domestic equity securities 1,328 1,183 27 24 Mid-small (c) 323 340 – – International equity securities 752 643 17 15 Real e 547 146 – – Hedge funds (d) 283 290 – – Private equity funds (e) 304 225 – – Total plan investment assets at fair value $ 5,838 $ 4,936 $ 84 $ 81 (a) At December 31, 2018, securities included $ 56 53 (b) These investments are valued based on net asset value per share as a practical expedient; fair values are provided to reconcile to total investment assets of the plans at fair value. (c) At December 31, 2019 and 2018, securities included $ 323 340 (d) This category consists of several investment strategies diversified across several hedge fund managers. (e) This category consists of several investment strategies diversified across several private equity fund managers. The following table summarizes the changes in fair value for qualified pension plan investment assets measured at fair value using significant unobservable inputs (Level 3) for the years ended December 31: 2019 2018 2017 (Dollars in Millions) Other Other Other Balance at beginning of period $ 3 $ 2 $ 1 Unrealized gains (losses) relating to assets still held at end of year – – – Purchases, sales, and settlements, net – 1 1 Balance at end of period $ 3 $ 3 $ 2 The following benefit payments are expected to be paid from the retirement plans for the years ended December 31: (Dollars in Millions) Pension Postretirement (a) Medicare 2020 $ 233 $ 7 $ 1 2021 254 6 1 2022 267 6 1 2023 294 6 1 2024 306 5 1 2025-2029 1,811 19 2 (a) Net of expected retiree contributions and before Medicare Part D subsidy.

Stock-Based Compensation

Stock-Based Compensation	12 Months Ended
Stock-Based Compensation	Dec. 31, 2019
Share-based Payment Arrangement [Abstract]
Stock-Based Compensation	NOTE 17 As part of its employee and director compensation programs, the Company currently may grant certain stock awards under the provisions of its stock incentive plan. The plan provides for grants of options to purchase shares of common stock at a fixed price equal to the fair value of the underlying stock at the date of grant. Option grants are generally exercisable up to ten years from the date of grant. In addition, the plan provides for grants of shares of common stock or stock units that are subject to restriction on transfer prior to vesting. Most stock and unit awards vest over three Stock Option Awards The following is a summary of stock options outstanding and exercised under prior and existing stock incentive plans of the Company: Year Ended December 31 Stock Weighted- Weighted-Average Aggregate 2019 Number outstanding at beginning of period 9,115,010 $ 34.52 Granted (a) — — Exercised (3,333,467 ) 26.36 Cancelled (b) (63,287 ) 36.74 Number outstanding at end of period (c) 5,718,256 $ 39.25 4.4 $ 115 Exercisable at end of period 4,869,805 $ 37.67 4.0 $ 105 2018 Number outstanding at beginning of period 12,668,467 $ 32.15 Granted (a) — — Exercised (3,443,494 ) 25.41 Cancelled (b) (109,963 ) 46.72 Number outstanding at end of period (c) 9,115,010 $ 34.52 4.3 $ 102 Exercisable at end of period 7,372,036 $ 31.61 3.5 $ 104 2017 Number outstanding at beginning of period 17,059,241 $ 29.95 Granted 1,066,188 54.97 Exercised (5,389,741 ) 29.58 Cancelled (b) (67,221 ) 43.31 Number outstanding at end of period (c) 12,668,467 $ 32.15 4.5 $ 272 Exercisable at end of period 9,647,937 $ 27.87 3.3 $ 248 (a) The Company did not grant any stock option awards during 2019 and 2018. (b) Options cancelled include both non-vested (c) Outstanding options include stock-based awards that may be forfeited in future periods. The impact of the estimated forfeitures is reflected in compensation expense. Stock-based compensation expense is based on the estimated fair value of the award at the date of grant or modification. The fair value of each option award is estimated on the date of grant using the Black-Scholes option-pricing model, requiring the use of subjective assumptions. Because employee stock options have characteristics that differ from those of traded options, including vesting provisions and trading limitations that impact their liquidity, the determined value used to measure compensation expense may vary from the actual fair value of the employee stock options. The following table includes the weighted-average estimated fair value of stock options granted and the assumptions utilized by the Company for newly issued grants for the year ended December 31, 2017: Year Ended December 31 2017 Estimated fair value $ 14.66 Risk-free interest rates 2.0 % Dividend yield 2.6 % Stock volatility factor . 35 Expected life of options (in years) 5.5 Expected stock volatility is based on several factors including the historical volatility of the Company’s common stock, implied volatility determined from traded options and other factors. The Company uses historical data to estimate option exercises and employee terminations to estimate the expected life of options. The risk-free interest rate for the expected life of the options is based on the U.S. Treasury yield curve in effect on the date of grant. The expected dividend yield is based on the Company’s expected dividend yield over the life of the options. The following summarizes certain stock option activity of the Company: Year Ended December 31 (Dollars in Millions) 2019 2018 2017 Fair value of options vested $ 10 $ 14 $ 13 Intrinsic value of options exercised 95 97 127 Cash received from options exercised 88 87 159 Tax benefit realized from options exercised 24 24 49 To satisfy option exercises, the Company predominantly uses treasury stock. Additional information regarding stock options outstanding as of December 31, 2019, is as follows: Outstanding Options Exercisable Options Range of Exercise Prices Shares Weighted- Weighted- Shares Weighted- $23.36—$25.00 236,661 .2 $ 23.82 236,661 $ 23.82 $25.01—$30.00 1,277,726 1.8 28.65 1,277,726 28.65 $30.01—$35.00 537,881 3.1 33.98 537,881 33.98 $35.01—$40.00 1,251,397 6.1 39.49 885,968 39.49 $40.01—$45.00 1,454,651 4.7 42.42 1,454,068 42.43 $45.01—$50.00 — — — — — $50.01—$55.01 959,940 7.1 54.97 477,501 54.97 5,718,256 4.4 $ 39.25 4,869,805 $ 37.67 Restricted Stock and Unit Awards A summary of the status of the Company’s restricted shares of stock and unit awards is presented below: 2019 2018 2017 Year Ended December 31 Shares Weighted- Value Shares Weighted- Value Shares Weighted- Value Outstanding at beginning of period 6,719,298 $ 48.17 7,446,955 $ 44.49 8,265,507 $ 39.50 Granted 3,519,474 50.45 3,213,023 55.03 2,850,927 54.45 Vested (3,270,778 ) 48.69 (3,373,323 ) 46.42 (3,295,376 ) 40.66 Cancelled (361,161 ) 50.55 (567,357 ) 49.07 (374,103 ) 43.91 Outstanding at end of period 6,606,833 $ 48.99 6,719,298 $ 48.17 7,446,955 $ 44.49 The total fair value of shares vested was $175 million, $182 million and $180 million for the years ended December 31, 2019, 2018 and 2017, respectively. Stock-based compensation expense was $178 million, $174 million and $163 million for the years ended December 31, 2019, 2018 and 2017, respectively. On an after-tax December 31, 2019, 2018 and 2017, respectively. As of December 31, 2019, there was $143 million of total unrecognized compensation cost related to nonvested share-based arrangements granted under the plans. That cost is expected to be recognized over a weighted-average period of 1.7 years as compensation expense.

Income Taxes

Income Taxes	12 Months Ended
Income Taxes	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Income Taxes	NOTE 18 The components of income tax expense were: Year Ended December 31 (Dollars in Millions) 2019 2018 2017 Federal Current $ 1,162 $ 1,287 $ 2,086 Deferred 166 (148 ) (1,180 ) Federal income tax 1,328 1,139 906 State Current 379 395 201 Deferred (59 ) 20 157 State income tax 320 415 358 Total income tax provision $ 1,648 $ 1,554 $ 1,264 A reconciliation of expected income tax expense at the federal statutory rate of 21 percent for 2019 and 2018 and 35 percent for 2017 to the Company’s applicable income tax expense follows: Year Ended December 31 (Dollars in Millions) 2019 2018 2017 Tax at statutory rate $ 1,805 $ 1,822 $ 2,631 State income tax, at statutory rates, net of federal tax benefit 355 352 281 Tax effect of Revaluation of tax related assets and liabilities (a) — — (910 ) Tax credits and benefits, net of related expenses (424 ) (513 ) (774 ) Tax-exempt (120 ) (130 ) (200 ) Nondeductible legal and regulatory expenses 23 52 213 Other items (b) 9 (29 ) 23 Applicable income taxes $ 1,648 $ 1,554 $ 1,264 (a) In late 2017, tax legislation was enacted that, among other provisions, reduced the federal statutory rate for corporations from 35 percent to 21 percent effective in 2018. In accordance with generally accepted accounting principles, the Company revalued its deferred tax assets and liabilities at December 31, 2017, resulting in an estimated net tax benefit of $910 million, which the Company recorded in 2017. (b) Includes excess tax benefits associated with stock-based compensation and adjustments related to deferred tax assets and liabilities. The tax effects of fair value adjustments on securities available-for-sale, In preparing its tax returns, the Company is required to interpret complex tax laws and regulations and utilize income and cost allocation methods to determine its taxable income. On an ongoing basis, the Company is subject to examinations by federal, state, local and foreign taxing authorities that may give rise to differing interpretations of these complex laws, regulations December 31, 2011, 2012, 2015 and 2016 A reconciliation of the changes in the federal, state and foreign un certain Year Ended December 31 (Dollars in Millions) 2019 2018 2017 Balance at beginning of period $ 335 $ 287 $ 302 Additions for tax positions taken in prior years 168 93 3 Additions for tax positions taken in the current year 6 10 9 Exam resolutions (62 ) (51 ) (23 ) Statute expirations (15 ) (4 ) (4 ) Balance at end of period $ 432 $ 335 $ 287 The total amount of un certain certain certain 2019, 2018 and 2017 the Company recorded approximately $7 million, $(25) million and $16 million, respectively, in interest and penalties on uncertain tax positions. Deferred income tax assets and liabilities reflect the tax effect of estimated temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for the same items for income tax reporting purposes. The significant components of the Company’s net deferred tax asset (liability) follows: At December 31 (Dollars in Millions) 201 9 2018 Deferred Tax Assets Federal, state and foreign net operating loss and credit carryforwards $ 2,592 $ 2,699 Allowance for credit losses 1,155 1,141 Accrued expenses 485 508 Obligation for operating leases 328 — Pension and postretirement benefits 193 85 Partnerships and other investment assets 91 69 Stock compensation 78 79 Fixed assets 2 58 Securities available-for-sale and financial instruments — 278 Other deferred tax assets, net 257 268 Gross deferred tax assets 5,181 5,185 Deferred Tax Liabilities Leasing activities (2,700 ) (2,652 ) Goodwill and other intangible assets (763 ) (703 ) Mortgage servicing rights (546 ) (642 ) Right of use assets (282 ) — Loans (139 ) (168 ) Securities available-for-sale and financial instruments (111 ) — Other deferred tax liabilities, net (131 ) (102 ) Gross deferred tax liabilities (4,672 ) (4,267 ) Valuation allowance (127 ) (109 ) Net Deferred Tax Asset $ 382 $ 809 The Company has approximately $2.0 billion of federal, state and foreign net operating loss carryforwards which expire at various times beginning in 2020 prior years, future reversals of existing taxable temporary differences and future taxable income. In addition, the Company has $2.5 billion of federal credit carryforwards which expire at various times through 2039 At December 31, 2019, retained earnings included approximately $102 million of base year reserves of acquired thrift institutions, for which no deferred federal income tax liability has been recognized. These base year reserves would be recaptured if certain subsidiaries of the Company cease to qualify as a bank for federal income tax purposes. The base year reserves also remain subject to income tax penalty provisions that, in general, require recapture upon certain stock redemptions of, and excess distributions to, stockholders.

Derivative Instruments

Derivative Instruments	12 Months Ended
Derivative Instruments	Dec. 31, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments	NOTE 19 In the ordinary course of business, the Company enters into derivative transactions to manage various risks and to accommodate the business requirements of its customers. The Company recognizes all derivatives on the Consolidated Balance Sheet at fair value in other assets or in other liabilities. On the date the Company enters into a derivative contract, the derivative is designated as either a fair value hedge, cash flow hedge, net investment hedge, or a designation is not made as it is a customer-related transaction, an economic hedge for asset/liability risk management purposes or another stand-alone derivative created through the Company’s operations (“free-standing derivative”). When a derivative is designated as a fair value, cash flow or net investment hedge, the Company performs an assessment, at inception and, at a minimum, quarterly thereafter, to determine the effectiveness of the derivative in offsetting changes in the value or cash flows of the hedged item(s). Fair Value Hedges Cash Flow Hedges (net-of-tax) losses (net-of-tax) 2018. The estimated amount to be reclassified from other comprehensive income (loss) into earnings during the next 12 months is a loss (net-of-tax). Net Investment Hedges non-derivative non-derivative Other Derivative Positions to-be-announced non-derivative and preferred The following table summarizes the asset and liability management derivative positions of the Company: Asset Derivatives Liability Derivatives (Dollars in Millions) Notional Fair Weighted-Average Notional Fair Weighted-Average December 31, 2019 Fair value hedges Interest rate contracts Receive fixed/pay floating swaps $ 18,300 $ – 3.89 $ 4,900 $ – 3.49 Cash flow hedges Interest rate contracts Pay fixed/receive floating swaps 1,532 – 6.06 7,150 10 2.11 Net investment hedges Foreign exchange forward contracts – – – 287 3 .04 Other economic hedges Interest rate contracts Futures and forwards Buy 5,409 17 .08 5,477 11 .07 Sell 16,333 13 .81 8,113 25 .03 Options Purchased 10,180 79 2.97 – – – Written 1,270 30 .08 4,238 81 2.07 Receive fixed/pay floating swaps 4,408 – 5.99 5,316 – 13.04 Pay fixed/receive floating swaps 1,259 – 5.67 4,497 – 6.03 Foreign exchange forward contracts 113 1 .05 467 6 .04 Equity contracts 128 2 .45 20 – 1.06 Other (a) 34 – .01 1,823 165 2.45 Total $ 58,966 $ 142 $ 42,288 $ 301 December 31, 2018 Cash flow hedges Interest rate contracts Pay fixed/receive floating swaps $ 7,422 $ 8 3.11 $ 4,320 $ – 1.77 Net investment hedges Foreign exchange forward contracts 209 5 .05 223 1 .05 Other economic hedges Interest rate contracts Futures and forwards Buy 2,839 27 .07 1,140 5 .05 Sell 994 3 .06 13,968 30 .72 Options Purchased 5,080 88 10.77 – – – Written 584 16 .09 3 – .09 Receive fixed/pay floating swaps 3,605 – 14.80 4,333 – 6.97 Pay fixed/receive floating swaps 4,333 – 6.97 1,132 – 7.64 Foreign exchange forward contracts 549 7 .03 75 1 .05 Equity contracts 19 1 .82 104 2 .45 Other (a) 1 – .01 1,458 84 1.50 Total $ 25,635 $ 155 $ 26,756 $ 123 (a) Includes derivative liability swap agreements related to the sale of a portion of the Company’s Class B common and preferred shares of Visa Inc. The Visa swap agreements had a total notional value, fair value and weighted-average remaining maturity of $ 1.8 165 2.50 1.5 84 34 1 The following table summarizes the customer-related derivative positions of the Company: Asset Derivatives Liability Derivatives (Dollars in Millions) Notional Fair Weighted-Average Notional Fair Weighted-Average December 31, 2019 Interest rate contracts Receive fixed/pay floating swaps $ 108,560 $ 1,865 4.83 $ 31,544 $ 88 3.83 Pay fixed/receive floating swaps 28,150 30 3.83 101,078 753 4.55 Other (a) 6,895 1 3.45 6,218 2 2.98 Options Purchased 46,406 43 2.06 12,804 47 1.25 Written 6,901 49 1.93 49,741 41 1.82 Futures Buy 894 – .21 – – – Sell 3,874 1 1.18 1,995 – 1.04 Foreign exchange rate contracts Forwards, spots and swaps 36,350 748 .97 36,671 729 1.07 Options Purchased 1,354 17 .54 – – – Written – – – 1,354 17 .54 Credit contracts 2,879 1 3.28 7,488 5 4.33 Total $ 242,263 $ 2,755 $ 248,893 $ 1,682 December 31, 2018 Interest rate contracts Receive fixed/pay floating swaps $ 42,054 $ 754 6.73 $ 60,731 $ 456 4.32 Pay fixed/receive floating swaps 60,970 288 3.90 40,499 420 6.57 Other (a) 5,777 2 3.77 6,496 2 2.72 Options Purchased 41,711 51 1.54 1,940 30 1.98 Written 2,060 32 2.07 39,538 51 1.44 Futures Buy 460 – 1.58 – – – Sell – – – 6,190 1 .59 Foreign exchange rate contracts Forwards, spots and swaps 26,210 681 .91 25,571 663 .88 Options Purchased 2,779 47 .75 – – – Written – – – 2,779 47 .75 Credit contracts 2,318 – 3.50 4,923 2 4.04 Total $ 184,339 $ 1,855 $ 188,667 $ 1,672 (a) Primarily represents floating rate interest rate swaps that pay based on differentials between specified interest rate indexes. The table below shows the effective portion of the gains (losses) recognized in other comprehensive income (loss) and the gains (losses) reclassified from other comprehensive income (loss) into earnings (net-of-tax) Gains (Losses) Recognized in Other Gains (Losses) Reclassified from (Dollars in Millions) 2019 2018 2017 2019 2018 2017 Asset and Liability Management Positions Cash flow hedges Interest rate contracts $ (171 ) $ 29 $ (3 ) $ (8 ) $ 3 $ (19 ) Net investment hedges Foreign exchange forward contracts 3 39 (56 ) – – – Non-derivative 13 32 (46 ) – – – Note: The Company does not exclude components from effectiveness testing for cash flow and net investment hedges. The table below shows the effect of fair value and cash flow hedge accounting on the Consolidated Statement of Income for the years ended December 31: Other Noninterest Income Interest Expense (Dollars in Millions) 2019 2018 2017 2019 2018 2017 Total amount of income and expense line items presented in the Consolidated Statement of Income in which the effects of fair value or cash flow hedges are recorded $ 926 $ 910 $ 774 $ 4,442 $ 3,254 $ 1,966 Asset and Liability Management Positions Fair value hedges Interest rate contract derivatives – – (28 ) (44 ) 5 – Hedged items – – 28 44 (5 ) – Cash Flow hedges Interest rate contract derivatives – – – 11 (5 ) 30 Note: The Company does not exclude components from effectiveness testing for fair value and cash flow hedges. The Company did not reclassify gains or losses into earnings as a result of the discontinuance of cash flow hedges during the years ended December 31, 2019, 2018 and 2017. The table below shows cumulative hedging adjustments and the carrying amount of assets (liabilities) designated in fair value hedges: Carrying Amount of the Cumulative Hedging (a) At December 31 (Dollars in Millions) 2019 2018 2019 2018 Line Item in the Consolidated Balance Sheet Long-term Debt $ 23,195 $ – $ 35 $ (27 ) (a) The cumulative hedging adjustment related to discontinued hedging relationships at December 31, 2019 and 2018 was $(7) million and $(27) million, respectively. The table below shows the gains (losses) recognized in earnings for other economic hedges and the customer-related positions for the years ended December 31: (Dollars in Millions) Location of Gains (Losses) 2019 2018 2017 Asset and Liability Management Positions Other economic hedges Interest rate contracts Futures and forwards Mortgage banking revenue $ 34 $ 110 $ 24 Purchased and written options Mortgage banking revenue 432 188 237 Swaps Mortgage banking revenue 316 (111 ) 35 Foreign exchange forward contracts Other noninterest income (24 ) 39 (69 ) Equity contracts Compensation expense – (4 ) 1 Other Other noninterest income (140 ) 2 (1 ) Customer-Related Positions Interest rate contracts Swaps Commercial products revenue 82 47 67 Purchased and written options Commercial products revenue 10 2 (24 ) Futures Commercial products revenue (5 ) 9 (3 ) Foreign exchange rate contracts Forwards, spots and swaps Commercial products revenue 82 84 92 Purchased and written options Commercial products revenue 1 – 2 Credit contracts Commercial products revenue (18 ) 2 3 The Company’s collateral arrangements are predominately bilateral and, therefore, contain provisions that require collateralization of the Company’s net liability derivative positions. Required collateral coverage is based on net liability thresholds and may be contingent upon the Company’s credit rating from two of the nationally recognized statistical rating organizations. If the Company’s credit rating were to fall below credit ratings thresholds established in the collateral arrangements, the counterparties to the derivatives could request immediate additional collateral coverage up to and including full collateral coverage for derivatives in a net liability position. The aggregate fair value of all derivatives under collateral arrangements that were in a net liability position at December 31, 2019, was $717 million. At December 31, 2019, the Company had $514 million of cash posted as collateral against this net liability position.

Netting Arrangements for Certai

Netting Arrangements for Certain Financial Instruments and Securities Financing Activities	12 Months Ended
	Dec. 31, 2019
Text Block [Abstract]
Netting Arrangements for Certain Financial Instruments and Securities Financing Activities	NOTE 20 Activities The Company’s derivative portfolio consists of bilateral over-the-counter trades, certain interest rate derivatives and credit contracts required to be centrally cleared through clearinghouses per current regulations, and exchange-traded positions which may include U.S. Treasury and Eurodollar futures or options on U.S. Treasury futures. Of the Company’s $592.4 billion total notional amount of derivative positions at December 31 , 2019 As part of the Company’s treasury and broker-dealer operations, the Company executes transactions that are treated as securities sold under agreements to repurchase or securities purchased under agreements to resell, both of which are accounted for as collateralized financings. Securities sold under agreements to repurchase include repurchase agreements and securities loaned transactions. Securities purchased under agreements to resell include reverse repurchase agreements and securities borrowed transactions. For securities sold under agreements to repurchase, the Company records a liability for the cash received, which is included in short-term borrowings on the Consolidated Balance Sheet. For securities purchased under agreements to resell, the Company records a receivable for the cash paid, which is included in other assets on the Consolidated Balance Sheet. Securities transferred to counterparties under repurchase agreements and securities loaned transactions continue to be recognized on the Consolidated Balance Sheet, are measured at fair value, and are included in investment securities or other assets. Securities received from counterparties under reverse repurchase agreements and securities borrowed transactions are not recognized on the Consolidated Balance Sheet unless the counterparty defaults. The securities transferred under repurchase and reverse repurchase transactions typically are U.S. Treasury and agency securities, residential agency mortgage-backed securities or corporate debt securities. The securities loaned or borrowed typically are corporate debt securities traded by the Company’s broker-dealer subsidiary. In general, the securities transferred can be sold, repledged or otherwise used by the party in possession. No restrictions exist on the use of cash collateral by either party. Repurchase/reverse repurchase and securities loaned/borrowed transactions expose the Company to counterparty risk. The Company manages this risk by performing assessments, independent of business line managers, and establishing concentration limits on each counterparty. Additionally, these transactions include collateral arrangements that require the fair values of the underlying securities to be determined daily, resulting in cash being obtained or refunded to counterparties to maintain specified collateral levels. The following table summarizes the maturities by category of collateral pledged for repurchase agreements and securities loaned transactions: (Dollars in Millions) Overnight and Less Than 30-89 Greater Than Total December 31, 2019 Repurchase agreements U.S. Treasury and agencies $ 289 $ — $ — $ — $ 289 Residential agency mortgage-backed securities 266 — — — 266 Corporate debt securities 610 — — — 610 Total repurchase agreements 1,165 — — — 1,165 Securities loaned Corporate debt securities 50 — — — 50 Total securities loaned 50 — — — 50 Gross amount of recognized liabilities $ 1,215 $ — $ — $ — $ 1,215 December 31, 2018 Repurchase agreements U.S. Treasury and agencies $ 134 $ — $ — $ — $ 134 Residential agency mortgage-backed securities 565 — 945 470 1,980 Corporate debt securities 480 — — — 480 Total repurchase agreements 1,179 — 945 470 2,594 Securities loaned Corporate debt securities 227 — — — 227 Total securities loaned 227 — — — 227 Gross amount of recognized liabilities $ 1,406 $ — $ 945 $ 470 $ 2,821 The Company executes its derivative, repurchase/reverse repurchase and securities loaned/borrowed transactions under the respective industry standard agreements. These agreements include master netting arrangements that allow for multiple contracts executed with the same counterparty to be viewed as a single arrangement. This allows for net settlement of a single amount on a daily basis. In the event of default, the master netting arrangement provides for close-out The following tables provide information on the Company’s netting adjustments, and items not offset on the Consolidated Balance Sheet but available for offset in the event of default: Gross Recognized Gross Amounts Consolidated (a) Net Amounts Consolidated Gross Amounts Not Offset on (Dollars in Millions) Financial (b) Collateral (c) Net Amount December 31, 2019 Derivative assets (d) $ 2,857 $ (982 ) $ 1,875 $ (80 ) $ (116 ) $ 1,679 Reverse repurchase agreements 1,021 — 1,021 (152 ) (869 ) — Securities borrowed 1,624 — 1,624 — (1,569 ) 55 Total $ 5,502 $ (982 ) $ 4,520 $ (232 ) $ (2,554 ) $ 1,734 December 31, 2018 Derivative assets (d) $ 1,987 $ (942 ) $ 1,045 $ (106 ) $ (16 ) $ 923 Reverse repurchase agreements 205 — 205 (114 ) (91 ) — Securities borrowed 1,069 — 1,069 — (1,039 ) 30 Total $ 3,261 $ (942 ) $ 2,319 $ (220 ) $ (1,146 ) $ 953 (a) Includes $429 million and $236 million of cash collateral related payables that were netted against derivative assets at December 31, 2019 and 2018, respectively. (b) For derivative assets this includes any derivative liability fair values that could be offset in the event of counterparty default; for reverse repurchase agreements this includes any repurchase agreement payables that could be offset in the event of counterparty default; for securities borrowed this includes any securities loaned payables that could be offset in the event of counterparty default. (c) Includes the fair value of securities received by the Company from the counterparty. These securities are not included on the Consolidated Balance Sheet unless the counterparty defaults. (d) Excludes $40 million and $23 million at December 31, 2019 and 2018, respectively, of derivative assets not subject to netting arrangements. Gross Recognized Liabilities Gross Amounts Offset on the Consolidated Balance Sheet (a) Net Amounts Presented on the Consolidated Balance Sheet Gross Amounts Not Offset on (Dollars in Millions) Financial Instruments (b) Collateral Pledged (c) Net Amount December 31, 2019 Derivative liabilities (d) $ 1,816 $ (1,067 ) $ 749 $ (80 ) $ – $ 669 Repurchase agreements 1,165 – 1,165 (152 ) (1,012 ) 1 Securities loaned 50 – 50 – (49 ) 1 Total $ 3,031 $ (1,067 ) $ 1,964 $ (232 ) $ (1,061 ) $ 671 December 31, 2018 Derivative liabilities (d) $ 1,710 $ (946 ) $ 764 $ (106 ) $ – $ 658 Repurchase agreements 2,594 – 2,594 (114 ) (2,480 ) – Securities loaned 227 – 227 – (224 ) 3 Total $ 4,531 $ (946 ) $ 3,585 $ (220 ) $ (2,704 ) $ 661 (a) Includes $514 million and $240 million of cash collateral related receivables that were netted against derivative liabilities at December 31, 2019 and 2018, respectively. (b) For derivative liabilities this includes any derivative asset fair values that could be offset in the event of counterparty default; for repurchase agreements this includes any reverse repurchase agreement receivables that could be offset in the event of counterparty default; for securities loaned this includes any securities borrowed receivables that could be offset in the event of counterparty default. (c) Includes the fair value of securities pledged by the Company to the counterparty. These securities are included on the Consolidated Balance Sheet unless the Company defaults. (d) Excludes $167 million and $85 million at December 31, 2019 and 2018, respectively, of derivative liabilities not subject to netting arrangements.

Fair Values of Assets and Liabi

Fair Values of Assets and Liabilities	12 Months Ended
Fair Values of Assets and Liabilities	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Fair Values of Assets and Liabilities	NOTE 21 The Company uses fair value measurements for the initial recording of certain assets and liabilities, periodic remeasurement of certain assets and liabilities, and disclosures. Derivatives, trading and available-for-sale lower-of-cost-or-fair Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. A fair value measurement reflects all of the assumptions that market participants would use in pricing the asset or liability, including assumptions about the risk inherent in a particular valuation technique, the effect of a restriction on the sale or use of an asset and the risk of nonperformance. The Company groups its assets and liabilities measured at fair value into a three-level hierarchy for valuation techniques used to measure financial assets and financial liabilities at fair value. This hierarchy is based on whether the valuation inputs are observable or unobservable. These levels are: – Level 1—Quoted prices in active markets for identical assets or liabilities. Level 1 includes U.S. Treasury securities, as well as exchange-traded instruments. – Level 2—Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 2 includes debt securities that are traded less frequently than exchange-traded instruments and which are typically valued using third - – Level 3—Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Level 3 assets and liabilities include financial instruments whose values are determined using pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which the determination of fair value requires significant management judgment or estimation. This category includes MSRs and certain derivative contracts. Valuation Methodologies The valuation methodologies used by the Company to measure financial assets and liabilities at fair value are described below. In addition, the following section includes an indication of the level of the fair value hierarchy in which the assets or liabilities are classified. Where appropriate, the descriptions include information about the valuation models and key inputs to those models. During the years ended December 31, 2019, 2018 and 2017, there were no significant changes to the valuation techniques used by the Company to measure fair value. Available-For-Sale For other securities, quoted market prices may not be readily available for the specific securities. When possible, the Company determines fair value based on market observable information, including quoted market prices for similar securities, inactive transaction prices, and broker quotes. These securities are classified within Level 2 of the fair value hierarchy. Level 2 valuations are generally provided by a third - Mortgage Loans Held For Sale Mortgage Servicing Rights Derivatives over-the-counter including external assessments of credit risk. The Company monitors and manages its nonperformance risk by considering its ability to net derivative positions under master netting arrangements, as well as collateral received or provided under collateral arrangements. Accordingly, the Company has elected to measure the fair value of derivatives, at a counterparty level, on a net basis. The majority of the derivatives are classified within Level 2 of the fair value hierarchy, as the significant inputs to the models, including nonperformance risk, are observable. However, certain derivative transactions are with counterparties where risk of nonperformance cannot be observed in the market and, therefore, the credit valuation adjustments result in these derivatives being classified within Level 3 of the fair value hierarchy. The Company also has other derivative contracts that are created through its operations, including commitments to purchase and originate mortgage loans and swap agreements executed in conjunction with the sale of a portion of its Class B common and preferred shares of Visa Inc. (the “Visa swaps”). The mortgage loan commitments are valued by pricing models that include market observable and unobservable inputs, which result in the commitments being classified within Level 3 of the fair value hierarchy. The unobservable inputs include assumptions about the percentage of commitments that actually become a closed loan and the MSR value that is inherent in the underlying loan value. The Visa swaps require payments by either the Company or the purchaser of the Visa Inc. Class B common and preferred shares when there are changes in the conversion rate of the Visa Inc. Class B common and preferred shares to Visa Inc. Class A common and preferred shares, respectively, as well as quarterly payments to the purchaser based on specified terms of the agreements. Management reviews and updates the Visa swaps fair value in conjunction with its review of Visa Inc. related litigation contingencies, and the associated escrow funding. The expected litigation resolution impacts the Visa Inc. Class B common share to Visa Inc. Class A common share conversion rate, as well as the ultimate termination date for the Visa swaps. Accordingly, the Visa swaps are classified within Level 3. Refer to Note 22 for further information on the Visa Inc. restructuring and related card association litigation. Significant Unobservable Inputs of Level 3 Assets and Liabilities The following section provides information to facilitate an understanding of the uncertainty in the fair value measurements for the Company’s Level 3 assets and liabilities recorded at fair value on the Consolidated Balance Sheet. This section includes a description of the significant inputs used by the Company and a description of any interrelationships between these inputs. The discussion below excludes nonrecurring fair value measurements of collateral value used for impairment measures for loans and OREO. These valuations utilize third - Mortgage Servicing Rights have resulted in a significantly higher fair value measurement. There is no direct interrelationship between prepayments and option adjusted spread. Prepayment rates generally move in the opposite direction of market interest rates. Option adjusted spread is generally impacted by changes in market return requirements. The following table shows the significant valuation assumption ranges for MSRs at December 31, 2019: Minimum Maximum Weighted (a) Expected prepayment 9 % 22 % 12 % Option adjusted spread 6 10 7 (a) Determined based on the relative fair value of the related mortgage loans serviced. Derivatives The significant unobservable inputs used in the fair value measurement of the Company’s derivative commitments to The following table shows the significant valuation assumption ranges for the Company’s derivative commitments to purchase and originate mortgage loans at December 31, 2019: Minimum Maximum Weighted (a) Expected loan close rate 12 % 100 % 78 % Inherent MSR value (basis points per loan) 56 221 130 (a) Determined based on the relative fair value of the related mortgage loans. The significant unobservable input used in the fair value measurement of certain of the Company’s asset/liability and customer-related derivatives is the credit valuation adjustment related to the risk of counterparty nonperformance. A significant increase in the credit valuation adjustment would have resulted in a lower fair value measurement. A significant decrease in the credit valuation adjustment would have resulted in a higher fair value measurement. The credit valuation adjustment is impacted by changes in market rates, volatility, market implied credit spreads, and loss recovery rates, as well as the Company’s assessment of the counterparty’s credit position. At December 31, 2019, the minimum, maximum and weighted - derivative contract fair value prior to adjustment was 0 percent, 671 percent and 1 percent, respectively. The significant unobservable inputs used in the fair value measurement of the Visa swaps are management’s estimate of the probability of certain litigation scenarios, and the timing of the resolution of the related litigation loss estimates in excess, or shortfall, of the Company’s proportional share of escrow funds. An increase in the loss estimate or a delay in the resolution of the related litigation would have resulted in an increase in the derivative liability. A decrease in the loss estimate or an acceleration of the resolution of the related litigation would have resulted in a decrease in the derivative liability. The following table summarizes the balances of assets and liabilities measured at fair value on a recurring basis: (Dollars in Millions) Level 1 Level 2 Level 3 Netting Total December 31, 2019 Available-for-sale U.S. Treasury and agencies $ 18,986 $ 853 $ – $ – $ 19,839 Mortgage-backed securities Residential agency – 94,111 – – 94,111 Commercial agency – 1,453 – – 1,453 Asset-backed securities Collateralized debt obligations/Collateralized loan obligations – – 1 – 1 Other – 375 7 – 382 Obligations of state and political subdivisions – 6,813 1 – 6,814 Obligations of foreign governments – 9 – – 9 Corporate debt securities – 4 – – 4 Total available-for-sale 18,986 103,618 9 – 122,613 Mortgage loans held for sale – 5,533 – – 5,533 Mortgage servicing rights – – 2,546 – 2,546 Derivative assets 9 1,707 1,181 (982 ) 1,915 Other assets 312 1,563 – – 1,875 Total $ 19,307 $ 112,421 $ 3,736 $ (982 ) $ 134,482 Derivative liabilities $ – $ 1,612 $ 371 $ (1,067 ) $ 916 Short-term borrowings and other liabilities (a) 50 1,578 – – 1,628 Total $ 50 $ 3,190 $ 371 $ (1,067 ) $ 2,544 December 31, 2018 Available-for-sale U.S. Treasury and agencies $ 18,585 $ 672 $ – $ – $ 19,257 Mortgage-backed securities Residential agency – 39,752 – – 39,752 Commercial agency – 2 – – 2 Other asset-backed securities – 403 – – 403 Obligations of state and political subdivisions – 6,701 – – 6,701 Total available-for-sale 18,585 47,530 – – 66,115 Mortgage loans held for sale – 2,035 – – 2,035 Mortgage servicing rights – – 2,791 – 2,791 Derivative assets – 1,427 583 (942 ) 1,068 Other assets 392 1,273 – – 1,665 Total $ 18,977 $ 52,265 $ 3,374 $ (942 ) $ 73,674 Derivative liabilities $ 1 $ 1,291 $ 503 $ (946 ) $ 849 Short-term borrowings and other liabilities (a) 199 1,019 – – 1,218 Total $ 200 $ 2,310 $ 503 $ (946 ) $ 2,067 Note: Excluded from the table above are equity investments without readily determinable fair values. The Company has elected to carry these investments at historical cost, adjusted for impairment and any changes resulting from observable price changes for identical or similar investments of the issuer. The aggregate carrying amount of these equity investments was $91 million and $86 million at December 31, 2019 and (a) Primarily represents the Company’s obligation on securities sold short required to be accounted for at fair value per applicable accounting guidance. The following table presents the changes in fair value for all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the years ended December 31: (Dollars in Millions) Beginning Net Gains Net Gains Purchases Sales Principal Issuances Settlements Transfers into End of Net Change Held at End of Period 2019 Available-for-sale Asset-backed securities Collateralized debt obligations/Collateralized loan obligations $ – $ – $ – $ – $ – $ – $ – $ – $ 1 $ 1 $ – Other – – – – – – – – 7 7 – Obligations of state and political subdivisions – – – – – – – – 1 1 – Total available-for-sale – – – – – – – – 9 9 – Mortgage servicing rights 2,791 (829 ) (c) – 20 5 – 559 (e) – – 2,546 (829 ) (c) Net derivative assets and liabilities 80 769 (d) – 142 (9 ) – – (172 ) – 810 782 (f) 2018 Mortgage servicing rights $ 2,645 $ (232 ) (c) $ – $ 8 $ (27 ) $ – $ 397 (e) $ – $ – $ 2,791 $ (232 ) (c) Net derivative assets and liabilities 107 21 (g) – 13 (41 ) – – (20 ) – 80 34 (h) 2017 Available-for-sale Residential non-agency Prime (a) $ 242 $ – $ (2 ) $ – $ (234 ) $ (6 ) $ – $ – $ – $ – $ – Non-prime (b) 195 – (17 ) – (175 ) (3 ) – – – – – Other asset-backed securities 2 – – – (2 ) – – – – – – Corporate debt securities 9 – 2 – (11 ) – – – – – – Total available-for-sale 448 – (17 ) (i) – (422 ) (9 ) – – – – – Mortgage servicing rights 2,591 (404 ) (c) – 13 – – 445 (e) – – 2,645 (404 ) (c) Net derivative assets and liabilities 171 317 (j) – 1 (10 ) – – (372 ) – 107 (52 ) (k) (a) Prime securities are those designated as such by the issuer at origination. When an issuer designation is unavailable, the Company determines at acquisition date the categorization based on asset pool characteristics (such as weighted-average credit score, loan-to-value, (b) Includes all securities not meeting the conditions to be designated as prime. (c) Included in mortgage banking revenue. (d) Approximately $287 million included in other noninterest income and $482 million included in mortgage banking revenue. (e) Represents MSRs capitalized during the period. (f) Approximately $747 million included in other noninterest income and $35 million included in mortgage banking revenue. (g) Approximately $(139) million included in other noninterest income and $160 million included in mortgage banking revenue. (h) Approximately $14 million included in other noninterest income and $20 million included in mortgage banking revenue. (i) Included in changes in unrealized gains and losses on investment securities available-for-sale. (j) Approximately $21 million included in other noninterest income and $296 million included in mortgage banking revenue. (k) Approximately $(77) million included in other noninterest income and $25 million included in mortgage banking revenue. The Company is also required periodically to measure certain other financial assets at fair value on a nonrecurring basis. These measurements of fair value usually result from the application of lower-of-cost-or-fair The following table summarizes the balances as of the measurement date of assets measured at fair value on a nonrecurring basis, and still held as of December 31: 2019 2018 (Dollars in Millions) Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Loans (a) $ – $ – $ 136 $ 136 $ – $ – $ 40 $ 40 Other assets (b) – – 46 46 – – 57 57 (a) Represents the carrying value of loans for which adjustments were based on the fair value of the collateral, excluding loans fully charged-off. (b) Primarily represents the fair value of foreclosed properties that were measured at fair value based on an appraisal or broker price opinion of the collateral subsequent to their initial acquisition. The following table summarizes losses recognized related to nonrecurring fair value measurements of individual assets or portfolios for the years ended December 31: (Dollars in Millions) 2019 2018 2017 Loans (a) $ 122 $ 83 $ 171 Other assets (b) 17 26 20 (a) Represents write-downs of loans which were based on the fair value of the collateral, excluding loans fully charged-off. (b) Primarily represents related losses of foreclosed properties that were measured at fair value subsequent to their initial acquisition. Fair Value Option The following table summarizes the differences between the aggregate fair value carrying amount of MLHFS for which the fair value option has been elected and the aggregate unpaid principal amount that the Company is contractually obligated to receive at maturity as of December 31: 2019 2018 (Dollars in Millions) Fair Value Aggregate Carrying Fair Value Aggregate Carrying Total loans $ 5,533 $ 5,366 $ 167 $ 2,035 $ 1,972 $ 63 Nonaccrual loans 1 1 – 2 2 – Loans 90 days or more past due 1 1 – – – – Fair Value of Financial Instruments The following section summarizes the estimated fair value for financial instruments accounted for at amortized cost as of December 31, 2019 and 2018. In accordance with disclosure guidance related to fair values of financial instruments, the Company did not include assets and liabilities that are not financial instruments, such as the value of goodwill, long-ter m relationships with deposit, credit card, merchant processing and trust customers, other purchased intangibles, premises and equipment, deferred taxes and other liabilities. Additionally, in accordance with the disclosure guidance, receivables and payables due in one year or less, insurance contracts, equity investments not accounted for at fair value, and deposits with no defined or contractual maturities are excluded. The estimated fair values of the Company’s financial instruments as of December 31, are shown in the table below: 2019 2018 Carrying Amount Fair Value Carrying Amount Fair Value (Dollars in Millions) Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Financial Assets Cash and due from banks $ 22,405 $ 22,405 $ – $ – $ 22,405 $ 21,453 $ 21,453 $ – $ – $ 21,453 Federal funds sold and securities purchased under resale agreements 1,036 – 1,036 – 1,036 306 – 306 – 306 Investment securities held-to-maturity – – – – – 46,050 4,594 40,359 11 44,964 Loans held for sale (a) 45 – – 43 43 21 – – 21 21 Loans 292,082 – – 297,241 297,241 282,837 – – 284,790 284,790 Other 1,923 – 929 994 1,923 2,412 – 1,241 1,171 2,412 Financial Liabilities Time deposits 42,894 – 42,831 – 42,831 44,554 – 44,140 – 44,140 Short-term borrowings (b) 22,095 – 21,461 – 21,461 12,921 – 12,678 – 12,678 Long-term debt 40,167 – 41,077 – 41,077 41,340 – 41,003 – 41,003 Other 3,678 – 1,342 2,336 3,678 1,726 – – 1,726 1,726 (a) Excludes mortgages held for sale for which the fair value option under applicable accounting guidance was elected. (b) Excludes the Company’s obligation on securities sold short required to be accounted for at fair value per applicable accounting guidance. The fair value of unfunded commitments, deferred non-yield non-yield standby letters of credit was $528 million and $532 million at December 31, 2019 and 2018, respectively. The carrying value of other guarantees was $200 million and $263 million at December 31, 2019 and 2018, respectively.

Guarantees and Contingent Liabi

Guarantees and Contingent Liabilities	12 Months Ended
Guarantees and Contingent Liabilities	Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Guarantees and Contingent Liabilities	NOTE 22 Visa Restructuring and Card Association Litigation Visa U.S.A. Inc. (“Visa U.S.A.”) and MasterCard International (collectively, the “Card Associations”) are defendants in antitrust lawsuits challenging the practices of the Card Associations (the “Visa Litigation”). Visa U.S.A. member banks have a contingent obligation to indemnify Visa Inc. under the Visa U.S.A. bylaws (which were modified at the time of the restructuring in October 2007) for potential losses arising from the Visa Litigation. The indemnification by the Visa U.S.A. member banks has no specific maximum amount. Using proceeds from its IPO and through reductions to the conversion ratio applicable to the Class B shares held by Visa U.S.A. member banks, Visa Inc. has funded an escrow account for the benefit of member financial institutions to fund their indemnification obligations associated with the Visa Litigation. The receivable related to the escrow account is classified in other liabilities as a direct offset to the related Visa Litigation contingent liability. In October 2012, Visa signed a settlement agreement to resolve class action claims associated with the multi-district interchange litigation pending in the United States District Court for the Eastern District of New York (the “Multi-District Litigation”). The U.S. Court of Appeals for the Second Circuit reversed the approval of that settlement and remanded the matter to the district court. In September 2018, Visa signed a new settlement agreement, superseding the original settlement agreement, to resolve class action claims associated with the Multi-District Litigation. The new settlement is still subject to court approval. Commitments to Extend Credit The contract or notional amounts of unfunded commitments to extend credit at December 31, 2019, excluding those commitments considered derivatives, were as follows: Term (Dollars in Millions) Less Than Greater Year Total Commercial and commercial real estate loans $ 31,235 $ 108,303 $ 139,538 Corporate and purchasing card loans (a) 29,296 – 29,296 Residential mortgages 416 1 417 Retail credit card loans (a) 111,773 – 111,773 Other retail loans 12,614 24,183 36,797 Other 6,325 – 6,325 (a) Primarily cancelable at the Company’s discretion. Other Guarantees and Contingent Liabilities The following table is a summary of other guarantees and contingent liabilities of the Company at December 31, 2019: (Dollars in Millions) Collateral Carrying Amount Maximum Standby letters of credit $ – $ 48 $ 10,258 Third - – – 7 Securities lending indemnifications 4,564 – 4,468 Asset sales – 68 5,069 Merchant processing 589 61 108,875 Tender option bond program guarantee 2,994 – 2,725 Minimum revenue guarantees – – 3 Other – 71 1,461 Letters of Credit expects its liquidity requirements to be less than the total outstanding commitments. The maximum potential future payments guaranteed by the Company under standby letter of credit arrangements at December 31, 2019, were approximately $10.3 billion with a weighted-average term of approximately 21 months. The estimated fair value of standby letters of credit was approximately $48 million at December 31, 2019. The contract or notional amount of letters of credit at December 31, 2019, were as follows: Term (Dollars in Millions) Less Than Greater Total Standby $ 4,676 $ 5,582 $ 10,258 Commercial 339 28 367 Guarantees - - buy-back Third - Commitments from Securities Lending Asset Sales tax-advantaged buy-back tax-qualifying future payments guaranteed by the Company under these arrangements were approximately $5.1 billion at December 31, 2019, and represented the proceeds received from the buyer or the guaranteed portion in these transactions where the buy-back tax-advantaged The maximum potential future payments do not include loan sales where the Company provides standard representation and warranties to the buyer against losses related to loan underwriting documentation defects that may have existed at the time of sale that generally are identified after the occurrence of a triggering event such as delinquency. For these types of loan sales, the maximum potential future payments is generally the unpaid principal balance of loans sold measured at the end of the current reporting period. Actual losses will be significantly less than the maximum exposure, as only a fraction of loans sold will have a representation and warranty breach, and any losses on repurchase would generally be mitigated by any collateral held against the loans. The Company regularly sells loans to GSEs as part of its mortgage banking activities. The Company provides customary representations and warranties to GSEs in conjunction with these sales. These representations and warranties generally require the Company to repurchase assets if it is subsequently determined that a loan did not meet specified criteria, such as a documentation deficiency or rescission of mortgage insurance. If the Company is unable to cure or refute a repurchase request, the Company is generally obligated to repurchase the loan or otherwise reimburse the GSE for losses. At December 31, 2019, the Company had reserved $9 million for potential losses from representation and warranty obligations, compared with $10 million at December 31, 2018. The Company’s reserve reflects management’s best estimate of losses for representation and warranty obligations. The Company’s repurchase reserve is modeled at the loan level, taking into consideration the individual credit quality and borrower activity that has transpired since origination. The model applies credit quality and economic risk factors to derive a probability of default and potential repurchase that are based on the Company’s historical loss experience, and estimates loss severity based on expected collateral value. The Company also considers qualitative factors that may result in anticipated losses differing from historical loss trends. As of December 31, 2019 and 2018, the Company had $10 million and $15 million, respectively, of unresolved representation and warranty claims from GSEs. The Company does not have a significant amount of unresolved claims from investors other than GSEs. Merchant Processing back” to the merchant and the disputed amount is credited or otherwise refunded to the cardholder. If the Company is unable to collect this amount from the merchant, it bears the loss for the amount of the refund paid to the cardholder. A cardholder, through its issuing bank, generally has until the later of up to four months after the date the transaction is processed or the receipt of the product or service to present a charge-back to the Company as the merchant processor. The absolute maximum potential liability is estimated to be the total volume of credit card transactions that meet the associations’ requirements to be valid charge-back transactions at any given time. Management estimates that the maximum potential exposure for charge-backs would approximate the total amount of merchant transactions processed through the credit card associations for the last four months. For the last four months of 2019 this amount totaled approximately $108.9 billion. In most cases, this contingent liability is unlikely to arise, as most products and services are delivered when purchased and amounts are refunded when items are returned to merchants. However, where the product or service has been purchased but is not provided until a future date (“future delivery”), the potential for this contingent liability increases. To mitigate this risk, the Company may require the merchant to make an escrow deposit, place maximum volume limitations on future delivery transactions processed by the merchant at any point in time, or require various credit enhancements (including letters of credit and bank guarantees). Also, merchant processing contracts may include event triggers to provide the Company more financial and operational control in the event of financial deterioration of the merchant. The Company currently processes card transactions in the United States, Canada, Europe and Mexico through wholly-owned subsidiaries and a network of other financial institutions. In the event a merchant was unable to fulfill product or services subject to future delivery, such as airline tickets, the Company could become financially liable for refunding the purchase price of such products or services purchased through the credit card associations under the charge-back provisions. Charge-back risk related to these merchants is evaluated in a manner similar to credit risk assessments and, as such, merchant processing contracts contain various provisions to protect the Company in the event of default. At December 31, 2019, the value of airline tickets purchased to be delivered at a future date through card transactions processed by the Company was $8.3 billion. The Company held collateral of $496 million in escrow deposits, letters of credit and indemnities from financial institutions, and liens on various assets. In addition to specific collateral or other credit enhancements, the Company maintains a liability for its implied guarantees associated with future delivery. At December 31, 2019, the liability was $44 million primarily related to these airline processing arrangements. In the normal course of business, the Company has unresolved charge-backs. The Company assesses the likelihood of its potential liability based on the extent and nature of unresolved charge-backs and its historical loss experience. At December 31, 2019, the Company held $89 million of merchant escrow deposits as collateral and had a recorded liability for potential losses of $17 million. Tender Option Bond Program Guarantee available-for-sale Minimum Revenue Guarantees - Other Guarantees and Commitments - - The Company has also made other financial performance guarantees and commitments primarily related to the operations of its subsidiaries. At December 31, 2019, the maximum potential future payments guaranteed or committed by the Company under these arrangements were approximately $781 million. Litigation and Regulatory Matters The Company is subject to various litigation and regulatory matters that arise in the ordinary course of its business. The Company establishes reserves for such matters when potential losses become probable and can be reasonably estimated. The Company believes the ultimate resolution of existing legal and regulatory matters will not have a material adverse effect on the financial condition, results of operations or cash flows of the Company. However, in light of the uncertainties inherent in these matters, it is possible that the ultimate resolution of one or more of these matters may have a material adverse effect on the Company’s results from operations for a particular period, and future changes in circumstances or additional information could result in additional accruals or resolution in excess of established accruals, which could adversely affect the Company’s results from operations, potentially materially. Residential Mortgage-Backed Securities Litigation Regulatory Matters - In February 2018, the Company entered into a deferred prosecution agreement (the “DPA”) with the United States Attorney’s Office in Manhattan that resolved its investigation of the Company concerning a legacy banking relationship between U.S. Bank and payday lending businesses associated with a former customer and U.S. Bank’s legacy Bank Secrecy Act/anti-money laundering compliance program. The DPA deferred prosecution for a period of two years, subject to the Company’s compliance with its terms, which included ongoing efforts to implement and maintain an adequate Bank Secrecy Act/anti-money laundering compliance program. The United States Attorney’s Office filed a motion to dismiss all charges under the DPA with the United States District Court for the Southern District of New York and that motion was granted by the court on February 13, 2020. In related actions taken in February 2018, the Company and one of its affiliates entered into a regulatory settlement with the Board of Governors of the Federal Reserve System (the “Federal Reserve”) and U.S. Bank entered into a regulatory settlement with the Financial Crimes Enforcement Network (“FinCEN”). In December 2019, the Federal Reserve terminated the order that it had entered into with the Company and its affiliate and thereby terminated the ongoing obligations under that settlement. Additionally, U.S. Bank’s ongoing obligations under its settlement agreement with FinCEN will expire on February 22, 2020, in accordance with the terms of that agreement. Outlook

Business Segments

Business Segments	12 Months Ended
Business Segments	Dec. 31, 2019
Text Block [Abstract]
Business Segments	NOTE 23 Within the Company, financial performance is measured by major lines of business based on the products and services provided to customers through its distribution channels. These operating segments are components of the Company about which financial information is prepared and is evaluated regularly by management in deciding how to allocate resources and assess performance. The Company has five reportable operating segments: Corporate and Commercial Banking non-profit Consumer and Business Banking on-line Wealth Management and Investment Services Payment Services Treasury and Corporate Support tax-advantaged Basis of Presentation capital is allocated to the business segments to support evaluation of business performance. Business segments are allocated capital on a risk-adjusted basis considering economic and regulatory capital requirements. Generally, the determination of the amount of capital allocated to each business segment includes credit and operational capital allocations following a Basel III regulatory framework. Interest income and expense is determined based on the assets and liabilities managed by the business segment. Because funding and asset liability management is a central function, funds transfer-pricing methodologies are utilized to allocate a cost of funds used or credit for funds provided to all business segment assets and liabilities, respectively, using a matched funding concept. Also, each business unit is allocated the taxable-equivalent benefit of tax-exempt charge-off. Designations, assignments and allocations change from time to time as management systems are enhanced, methods of evaluating performance or product lines change or business segments are realigned to better respond to the Company’s diverse customer base. During 2019, certain organization and methodology changes were made and, accordingly, 2018 results were restated and presented on a comparable basis. Business segment results for the years ended December 31 were as follows: Corporate and Commercial Banking Consumer and Business Banking Wealth Management and Investment Services Year Ended December 31 (Dollars in Millions) 2019 2018 2019 2018 2019 2018 Condensed Income Statement Net interest income (taxable-equivalent basis) $ 2,871 $ 2,936 $ 6,261 $ 6,156 $ 1,157 $ 1,131 Noninterest income 867 843 2,387 2,316 1,799 1,748 Securities gains (losses), net – – – – – – Total net revenue 3,738 3,779 8,648 8,472 2,956 2,879 Noninterest expense 1,607 1,591 5,285 5,232 1,752 1,778 Other intangibles 4 4 20 27 13 16 Total noninterest expense 1,611 1,595 5,305 5,259 1,765 1,794 Income before provision and income taxes 2,127 2,184 3,343 3,213 1,191 1,085 Provision for credit losses 78 65 310 232 (3 ) (2 ) Income before income taxes 2,049 2,119 3,033 2,981 1,194 1,087 Income taxes and taxable-equivalent adjustment 513 531 759 745 299 273 Net income 1,536 1,588 2,274 2,236 895 814 Net (income) loss attributable to noncontrolling interests – – – – – – Net income attributable to U.S. Bancorp $ 1,536 $ 1,588 $ 2,274 $ 2,236 $ 895 $ 814 Average Balance Sheet Loans $ 96,608 $ 93,854 $ 144,595 $ 140,875 $ 10,080 $ 9,364 Other earning assets 3,751 3,072 3,989 3,501 282 184 Goodwill 1,647 1,647 3,475 3,604 1,617 1,618 Other intangible assets 8 11 2,617 2,953 49 63 Assets 106,716 102,801 158,884 155,267 13,330 12,437 Noninterest-bearing deposits 29,152 32,938 27,876 27,691 13,195 14,006 Interest-bearing deposits 72,780 69,913 129,289 124,934 62,031 56,000 Total deposits 101,932 102,851 157,165 152,625 75,226 70,006 Total U.S. Bancorp shareholders’ equity 10,399 10,463 11,713 11,812 2,525 2,476 Payment Services Treasury and Corporate Support Consolidated Company Year Ended December 31 (Dollars in Millions) 2019 2018 2019 2018 2019 2018 Condensed Income Statement Net interest income (taxable-equivalent basis) $ 2,493 $ 2,443 $ 373 $ 369 $ 13,155 $ 13,035 Noninterest income 3,707 (a) 3,599 (a) 998 1,066 9,758 (b) 9,572 (b) Securities gains (losses), net – – 73 30 73 30 Total net revenue 6,200 6,042 1,444 1,465 22,986 22,637 Noninterest expense 2,940 2,859 1,033 843 12,617 12,303 Other intangibles 131 114 – – 168 161 Total noninterest expense 3,071 2,973 1,033 843 12,785 12,464 Income before provision and income taxes 3,129 3,069 411 622 10,201 10,173 Provision for credit losses 1,108 1,081 11 3 1,504 1,379 Income before income taxes 2,021 1,988 400 619 8,697 8,794 Income taxes and taxable-equivalent adjustment 505 497 (325 ) (376 ) 1,751 1,670 Net income 1,516 1,491 725 995 6,946 7,124 Net (income) loss attributable to noncontrolling interests – – (32 ) (28 ) (32 ) (28 ) Net income attributable to U.S. Bancorp $ 1,516 $ 1,491 $ 693 $ 967 $ 6,914 $ 7,096 Average Balance Sheet Loans $ 33,566 $ 31,102 $ 5,837 $ 5,506 $ 290,686 $ 280,701 Other earning assets 348 291 131,481 127,318 139,851 134,366 Goodwill 2,839 2,570 – – 9,578 9,439 Other intangible assets 538 406 – – 3,212 3,433 Assets 39,743 36,912 156,980 149,597 475,653 457,014 Noninterest-bearing deposits 1,205 1,099 2,435 2,462 73,863 78,196 Interest-bearing d 115 110 8,734 4,309 272,949 255,266 Total deposits 1,320 1,209 11,169 6,771 346,812 333,462 Total U.S. Bancorp shareholders’ equity 7,084 6,629 20,902 18,383 52,623 49,763 (a) Presented net of related rewards and rebate costs and certain partner payments of $2.2 billion for 2019 and 2018. (b) Includes revenue generated from certain contracts with customers of $7.3 billion and $7.4 billion for 2019 and 2018, respectively.

U.S. Bancorp (Parent Company)

U.S. Bancorp (Parent Company)	12 Months Ended
U.S. Bancorp (Parent Company)	Dec. 31, 2019
Condensed Financial Information Disclosure [Abstract]
U.S. Bancorp (Parent Company)	NOTE 24 Condensed Balance Sheet At December 31 (Dollars in Millions) 2019 2018 Assets Due from banks, principally interest-bearing $ 11,583 $ 9,969 Available-for-sale 1,631 921 Investments in bank subsidiaries 48,518 47,549 Investments in nonbank subsidiaries 3,128 2,568 Advances to bank subsidiaries 3,850 3,800 Advances to nonbank subsidiaries 1,465 2,543 Other assets 1,211 813 Total assets $ 71,386 $ 68,163 Liabilities and Shareholders’ Equity Short-term funds borrowed $ 8 $ – Long-term debt 18,602 16,291 Other liabilities 923 843 Shareholders’ equity 51,853 51,029 Total liabilities and shareholders’ equity $ 71,386 $ 68,163 Condensed Income Statement Year Ended December 31 (Dollars in Millions) 2019 2018 2017 Income Dividends from bank subsidiaries $ 7,100 $ 5,300 $ 4,800 Dividends from nonbank subsidiaries 6 6 5 Interest from subsidiaries 317 220 159 Other income 25 33 41 Total income 7,448 5,559 5,005 Expense Interest expense 551 471 402 Other expense 140 133 124 Total expense 691 604 526 Income before income taxes and equity in undistributed income of subsidiaries 6,757 4,955 4,479 Applicable income taxes (92 ) (91 ) (176 ) Income of parent company 6,849 5,046 4,655 Equity in undistributed income of subsidiaries 65 2,050 1,563 Net income attributable to U.S. Bancorp $ 6,914 $ 7,096 $ 6,218 Condensed Statement of Cash Flows Year Ended December 31 (Dollars in Millions) 2019 2018 2017 Operating Activities Net income attributable to U.S. Bancorp $ 6,914 $ 7,096 $ 6,218 Adjustments to reconcile net income to net cash provided by operating activities Equity in undistributed income of subsidiaries (65 ) (2,050 ) (1,563 ) Other, net 231 359 (125 ) Net cash provided by operating activities 7,080 5,405 4,530 Investing Activities Proceeds from sales and maturities of investment securities 291 39 100 Purchases of investment securities (1,013 ) (10 ) (844 ) Net (increase) decrease in short-term advances to subsidiaries 578 (488 ) (790 ) Long-term advances to subsidiaries (2,600 ) (500 ) – Principal collected on long-term advances to subsidiaries 2,550 – 500 Other, net (341 ) 304 (12 ) Net cash used in investing activities (535 ) (655 ) (1,046 ) Financing Activities Net increase (decrease) in short-term borrowings 8 (1 ) (21 ) Proceeds from issuance of long-term debt 3,743 2,100 3,920 Principal payments or redemption of long-term debt (1,500 ) (1,500 ) (1,250 ) Proceeds from issuance of preferred stock – 565 993 Proceeds from issuance of common stock 88 86 159 Repurchase of preferred stock – – (1,085 ) Repurchase of common stock (4,525 ) (2,822 ) (2,631 ) Cash dividends paid on preferred stock (302 ) (274 ) (284 ) Cash dividends paid on common stock (2,443 ) (2,092 ) (1,928 ) Net cash used in financing activities (4,931 ) (3,938 ) (2,127 ) Change in cash and due from banks 1,614 812 1,357 Cash and due from banks at beginning of year 9,969 9,157 7,800 Cash and due from banks at end of year $ 11,583 $ 9,969 $ 9,157 Transfer of funds (dividends, loans or advances) from bank subsidiaries to the Company is restricted. Federal law requires loans to the Company or its affiliates to be secured and generally limits loans to the Company or an individual affiliate to 10 percent of each bank’s unimpaired capital and surplus. In the aggregate, loans to the Company and all affiliates cannot exceed 20 percent of each bank’s unimpaired capital and surplus.

Subsequent Events

Subsequent Events	12 Months Ended
Subsequent Events	Dec. 31, 2019
Subsequent Events [Abstract]
Subsequent Events	NOTE 25

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	12 Months Ended
Significant Accounting Policies (Policies)	Dec. 31, 2019
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation
Uses of Estimates	Uses of Estimates
Securities	Securities Realized gains or losses on securities are determined on a trade date basis based on the specific amortized cost of the investments sold. Trading Securities Available-for-sale Held-to-maturity Securities Purchased Under Agreements to Resell and Securities Sold Under Agreements to Repurchase
Equity Investments	Equity Investments Equity investments in entities where the Company has a significant influence (generally between 20 percent and 50 percent ownership), but does not control the entity, are accounted for using the equity method. Investments in limited partnerships and similarly structured limited liability companies where the Company’s ownership interest is greater than 5 percent are accounted for using the equity method. Equity investments not using the equity method are accounted for at fair value with changes in fair value and realized gains or losses reported in noninterest income, unless fair value is not readily determinable, in which case the investment is carried at cost subject to adjustments for any observable market transactions on the same or similar instruments of the investee. Most of the Company’s equity investments do not have readily determinable fair values. All equity investments are evaluated for impairment at least annually and more frequently if certain criteria are met.
Loans	Loans The Company offers a broad array of lending products and categorizes its loan portfolio into two segments, which is the level at which it develops and documents a systematic methodology to determine the allowance for credit losses. The Company’s two two three The Company’s accounting methods for loans differ depending on whether the loans are originated or purchased, and for purchased loans, whether the loans were acquired at a discount related to evidence of credit deterioration since date of origination. Originated Loans Held for Investment Purchased Loans (non-impaired non-impaired In determining the acquisition date fair value of purchased impaired loans, and in subsequent accounting, the Company generally aggregates purchased consumer loans and certain smaller balance commercial loans into pools of loans with common risk characteristics, while accounting for larger balance commercial loans individually. Expected cash flows at the purchase date in excess of the fair value of loans are recorded as interest income over the life of the loans if the timing and amount of the future cash flows is reasonably estimable. Subsequent to the purchase date, increases in cash flows over those expected at the purchase date are recognized as interest income prospectively. The present value of any decreases in expected cash flows, other than from decreases in variable interest rates, after the purchase date is recognized by recording an allowance for credit losses. Revolving loans, including lines of credit and credit cards loans, and leases are excluded from purchased impaired loans accounting. For purchased loans acquired after January 1, 2009 that are not deemed impaired at acquisition, credit discounts representing the principal losses expected over the life of the loan are a component of the initial fair value. Subsequent to the purchase date, the methods utilized to estimate the required allowance for credit losses for these loans is similar to originated loans; however, the Company records a provision for credit losses only when the required allowance exceeds any remaining credit discounts. The remaining differences between the purchase price and the unpaid principal balance at the date of acquisition are recorded in interest income over the life of the loans. Commitments to Extend Credit changes in fair value recorded in noninterest income. All other unfunded loan commitments are not considered derivatives and are not reported on the Consolidated Balance Sheet. For loans purchased after January 1, 2009, the fair value of the unfunded credit commitments is generally considered in the determination of the fair value of the loans recorded at the date of acquisition. Reserves for credit exposure on all other unfunded credit commitments are recorded in other liabilities. Allowance for Credit Losses The allowance recorded for loans in the commercial lending segment is based on reviews of individual credit relationships and considers the migration analysis of commercial lending segment loans and actual loss experience. For each loan type, this historical loss experience is adjusted as necessary to consider any relevant changes in portfolio composition, lending policies, underwriting standards, risk management practices or economic conditions. The results of the analysis are evaluated quarterly to confirm the selected loss experience is appropriate for each commercial loan type. The allowance recorded for impaired loans greater than $5 million in the commercial lending segment is based on an individual loan analysis utilizing expected cash flows discounted using the original effective interest rate, the observable market price of the loan, or the fair value of the collateral, less selling costs, for collateral-dependent loans, rather than the migration analysis. The allowance recorded for all other commercial lending segment loans is determined on a homogenous pool basis and includes consideration of product mix, risk characteristics of the portfolio, delinquency status, bankruptcy experience, portfolio growth and historical losses, adjusted for current trends. The Company also considers the impacts of any loan modifications made to commercial lending segment loans and any subsequent payment defaults to its expectations of cash flows, principal balance, and current expectations about the borrower’s ability to pay in determining the allowance for credit losses. The allowance recorded for Troubled Debt Restructuring (“TDR”) loans and purchased impaired loans in the consumer lending segment is determined on a homogenous pool basis utilizing expected cash flows discounted using the original effective interest rate of the pool, or the prior quarter effective rate, respectively. The allowance for collateral-dependent loans in the consumer lending segment is determined based on the fair value of the collateral less costs to sell. The allowance recorded for all other consumer lending segment loans is determined on a homogenous pool basis and includes consideration of product mix, risk characteristics of the portfolio, bankruptcy experience, delinquency status, refreshed loan-to-value portfolio growth and historical losses, adjusted for current trends. The Company also considers any modifications made to consumer lending segment loans including the impacts of any subsequent payment defaults since modification in determining the allowance for credit losses, such as the borrower’s ability to pay under the restructured terms, and the timing and amount of payments. In addition, subsequent payment defaults on loan modifications considered TDRs are considered in the underlying factors used in the determination of the appropriateness of the allowance for credit losses. For each loan segment, the Company estimates future loan charge-offs through a variety of analysis, trends and underlying assumptions. With respect to the commercial lending segment, TDRs may be collectively evaluated for impairment where observed performance history, including defaults, is a primary driver of the loss allocation. For commercial TDRs individually evaluated for impairment, attributes of the borrower are the primary factors in determining the allowance for credit losses. However, historical loss experience is also incorporated into the allowance methodology applied to this category of loans. With respect to the consumer lending segment, performance of the portfolio, including defaults on TDRs, is considered when estimating future cash flows. The Company’s methodology for determining the appropriate allowance for credit losses for each loan segment also considers the imprecision inherent in the methodologies used. As a result, in addition to the amounts determined under the methodologies described above, management also considers the potential impact of other qualitative factors which include, but are not limited to, economic factors; geographic and other concentration risks; delinquency and nonaccrual trends; current business conditions; changes in lending policy, underwriting standards and other relevant business practices; results of internal review; and the regulatory environment. The consideration of these items results in adjustments to allowance amounts included in the Company’s allowance for credit losses for each of the above loan segments. The Company also assesses the credit risk associated with off-balance off-balance Credit Quality For all loan classes, loans are considered past due based on the number of days delinquent except for monthly amortizing loans which are classified delinquent based upon the number of contractually required payments not made (for example, two missed payments is considered 30 days delinquent). When a loan is placed on nonaccrual status, unpaid accrued interest is reversed, reducing interest income in the current period. Commercial lending segment loans are generally placed on nonaccrual status when the collection of principal and interest has become 90 days past due or is otherwise considered doubtful. Commercial lending segment loans are generally fully or partially charged down to the fair value of the collateral securing the loan, less costs to sell, when the loan is placed on nonaccrual. Consumer lending segment loans are generally charged-off 1-4 charge-off 1-4 family charged-off. charged-off 1-4 charged-off charged-off charge-off. For all loan classes, interest payments received on nonaccrual loans are generally recorded as a reduction to a loan’s carrying amount while a loan is on nonaccrual and are recognized as interest income upon payoff of the loan. However, interest income may be recognized for interest payments if the remaining carrying amount of the loan is believed to be collectible. In certain circumstances, loans in any class may be restored to accrual status, such as when a loan has demonstrated sustained repayment performance or no amounts are past due and prospects for future payment are no longer in doubt; or when the loan becomes well secured and is in the process of collection. Loans where there has been a partial charge-off charged-off) recognized until the timing and amount of the future cash flows can be reasonably estimated. The Company classifies its loan portfolios using internal credit quality ratings on a quarterly basis. These ratings include pass, special mention and classified, and are an important part of the Company’s overall credit risk management process and evaluation of the allowance for credit losses. Loans with a pass rating represent those loans not classified on the Company’s rating scale for problem credits, as minimal credit risk has been identified. Special mention loans are those loans that have a potential weakness deserving management’s close attention. Classified loans are those loans where a well-defined weakness has been identified that may put full collection of contractual cash flows at risk. It is possible that others, given the same information, may reach different reasonable conclusions regarding the credit quality rating classification of specific loans. Troubled Debt Restructurings The Company has implemented certain restructuring programs that may result in TDRs. However, many of the Company’s TDRs are also determined on a case-by-case For the commercial lending segment, modifications generally result in the Company working with borrowers on a case-by-case Modifications for the consumer lending segment are generally part of programs the Company has initiated. The Company modifies residential mortgage loans under Federal Housing Administration, United States Department of Veterans Affairs, or its own internal programs. Under these programs, the Company offers qualifying homeowners the opportunity to permanently mo dify their loan and ments Credit card and other retail loan TDRs are generally part of distinct restructuring programs providing customers experiencing financial difficulty with modifications whereby balances may be amortized up to 60 months, and generally include waiver of fees and reduced interest rates. In addition, the Company considers secured loans to consumer borrowers that have debt discharged through bankruptcy where the borrower has not reaffirmed the debt to be TDRs. Acquired loans restructured after acquisition are not considered TDRs for accounting and disclosure purposes if the loans evidenced credit deterioration as of the acquisition date and are accounted for in pools. Impaired Loans Factors used by the Company in determining whether all principal and interest payments due on commercial and commercial real estate loans will be collected and, therefore, whether those loans are impaired include, but are not limited to, the financial condition of the borrower, collateral and/or guarantees on the loan, and the borrower’s estimated future ability to pay based on industry, geographic location and certain financial ratios. The evaluation of impairment on residential mortgages, credit card loans and other retail loans is primarily driven by delinquency status of individual loans or whether a loan has been modified, and considers any government guarantee where applicable. Leases have 3 to 5 year terms. Commercial lease s may include high dollar assets such as aircraft or lower cost items such as office equipment. end-of-term Residual values on leased assets are reviewed regularly for impairment. Residual valuations for retail leases are based on independent assessments of expected used automobile sale prices at the end of the lease term. Impairment tests are conducted based on these valuations considering the probability of the lessee returning the asset to the Company, re-marketing end-of-term off-lease The Company, as lessee, leases certain assets for use in its operations. Leased assets primarily include retail branches, operations centers and other corporate locations, and, to a lesser extent, office and computer equipment. For each lease with an original term greater than 12 months, the Company records a lease liability and a corresponding right of use (“ROU”) asset. The Company accounts for the lease and non-lease Certain of the Company’s real estate leases include options to extend. Lease extension options are generally exercisable at market rates. Such option periods do not provide a significant incentive, and their exercise is not reasonably certain. Accordingly, the Company does not recognize payments occurring during option periods in the calculation of its ROU assets and lease liabilities. Other Real Estate
Loans Held For Sale	Loans Held For Sale Loans held for sale (“LHFS”) represent mortgage loans intended to be sold in the secondary market and other loans that management has an active plan to sell. LHFS are carried at the lower-of-cost-or-fair Where an election is made to carry the LHFS at fair value, any change in fair value is recognized in noninterest income. Where an election is made to carry LHFS at lower-of-cost-or-fair
Derivative Financial Instruments	Derivative Financial Instruments In the ordinary course of business, the Company enters into derivative transactions to manage various risks and to accommodate the business requirements of its customers. Derivative instruments are reported in other assets or other liabilities at fair value. Changes in a derivative’s fair value are recognized currently in earnings unless specific hedge accounting criteria are met. All derivative instruments that qualify and are designated for hedge accounting are recorded at fair value and classified as either a hedge of the fair value of a recognized asset or liability (“fair value hedge”); a hedge of a forecasted transaction or the variability of cash flows to be received or paid related to a recognized asset or liability (“cash flow hedge”); or a hedge of the volatility of a net investment in foreign operations driven by changes in foreign currency exchange rates (“net investment hedge”). Changes in the fair value of a derivative that is highly effective and designated as a fair value hedge, and the offsetting changes in the fair value of the hedged item, are recorded in earnings. Changes in the fair value of a derivative that is highly effective and designated as a cash flow hedge are recorded in other comprehensive income (loss) until cash flows of the hedged item are realized. Changes in the fair value of net investment hedges that are highly effective are recorded in other comprehensive income (loss). The Company performs an assessment, at inception and, at a minimum, quarterly thereafter, to determine the effectiveness of the derivative in offsetting changes in the value or cash flows of the hedged item(s). If a derivative designated as a cash flow hedge is terminated or ceases to be highly effective, the gain or loss in other comprehensive income (loss) is amortized to earnings over the period the forecasted hedged transactions impact earnings. If a hedged forecasted transaction is no longer probable, hedge accounting is ceased and any gain or loss included in other comprehensive income ( l reported in earnings immediately ,
Revenue Recognition	Revenue Recognition In the ordinary course of business, the Company recognizes income derived from various revenue generating activities. Certain revenues are generated from contracts where they are recognized when, or as services or products are transferred to customers for amounts the Company expects to be entitled. Revenue generating activities related to financial assets and liabilities are also recognized; including mortgage servicing fees, loan commitment fees, foreign currency remeasurements, and gains and losses on securities, equity investments and unconsolidated subsidiaries. Certain specific policies include the following: Credit and Debit Card Revenue Corporate Payment Products Revenue commercial card products processed through card association networks and revenue from proprietary network transactions. The Company records corporate payment products revenue as services are provided. Certain payments to credit card associations and customers are also recorded within corporate payment products revenue as services are provided. Corporate payment products revenue is recorded within the Payment Services line of business. Merchant Processing Services processing revenue also includes revenues related to point-of-sale shipped or as earned for equipment rentals. The Company records merchant processing services revenue within the Payment Services line of business. Trust and Investment Management Fees Deposit Service Charges Treasury Management Fees Commercial Products Revenue non-yield for the underwriting group. The Company recognizes only those fees and expenses related to its underwriting commitment. Mortgage Banking Revenue Mortgage banking revenue includes revenue derived from mortgages originated and subsequently sold, generally with servicing retained. The primary components include: gains and losses on mortgage sales; servicing revenue; changes in fair value for mortgage loans originated with the intent to sell and measured at fair value under the fair value option; changes in fair value for derivative commitments to purchase and originate mortgage loans; changes in the fair value of mortgage servicing rights (“MSRs”); and the impact of risk management activities associated with the mortgage origination pipeline, funded loans and MSRs. Net interest income from mortgage loans is recorded in interest income. Refer to Other Significant Policies in Note , as well as Note and Note for a further discussion of MSRs. Mortgage banking revenue is reported within the Consumer and Business Banking line of business. Investment Products Fees Investment products fees include commissions related to the execution of requested security trades, distribution fees from sale of mutual funds, and investment advisory fees. Commissions and investment advisory fees are recognized as services are delivered to and utilized by the customer. Distribution fees are received over time, are dependent on the consumer maintaining their mutual fund asset position and the value of such position. These revenues are estimated and recognized at the point a significant reversal of revenue becomes remote. Investment products fees are predominately reported within the Wealth Management and Investment Services line of business. Other Noninterest Income Other noninterest income is primarily related to financial assets including income on unconsolidated subsidiaries and equity method investments, gains on sale of other investments and corporate owned life insurance proceeds. The Company reports other noninterest income across all lines of business.
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets includes assessing the current implied fair value of the reporting unit as if it were being acquired in a business combination and comparing it to the carrying amount of the reporting unit’s goodwill. Determining the amount of other intangible asset impairment, if any, includes assessing the present value of the estimated future cash flows associated with the intangible asset and comparing it to the carrying amount of the asset.
Income Taxes	I ncome Taxes Deferred taxes are recorded to reflect the tax consequences on future years of differences between the tax basis of assets and liabilities and their financial reporting carrying amounts. The Company uses the deferral method of accounting on investments that generate investment tax credits. Under this method, the investment tax credits are recognized as a reduction to the related asset. For certain investments in qualified affordable housing projects, the Company presents the expense in tax expense rather than noninterest expense.
Mortgage Servicing Rights	Mortgage Servicing Rights -
Pensions	Pensions year-end plan assets is based on fair value adjusted for the difference between expected returns and actual performance of plan assets. The unrealized difference between actual experience and expected returns is included in expense over a period of approximately fifteen years. The overfunded or underfunded status of the plans is recorded as an asset or liability on the Consolidated Balance Sheet, with changes in that status recognized through other comprehensive income (loss).
Premises and Equipment	Premises and Equipment The Company, as lessee, records an ROU asset for each lease with an original term greater than 12 months. ROU assets are included in premises and equipment, with the corresponding lease liabilities included in long-term debt and other liabilities.
Stock-Based Compensation	Stock-Based Compensation
Per Share Calculations	Per Share Calculations two-class two-class
Accounting Changes	Accounting for Leases Standards Board (“FASB”) in February 2016, related to the accounting for leases. This guidance requires lessees to recognize all leases on the Consolidated Balance Sheet as lease assets and lease liabilities based primarily on the present value of future lease payments. The Company recognized approximately $1.3 billion of lease assets and related liabilities on its Consolidated Balance Sheet at the adoption date. In addition, lessors are now required to consider lease residual exposures of sales-type and direct financing leases when determining the allowance for credit losses. The adoption of this guidance was not material to the Company’s Consolidated Statement of Income. Financial Instruments—Credit Losses Effective 1, 2020, the Company adopted accounting guidance, issued by the FASB in June 2016, related to the impairment of financial instruments. This guidance changes impairment recognition to a model that is based on expected losses rather than incurred losses, which is intended to result in more timely recognition of credit losses. This guidance is also intended to reduce the complexity of accounting guidance by decreasing the number of credit impairment models that entities use to account for debt instruments. In addition, the guidance requires additional credit quality disclosures for loans. Upon adoption, the Company increased its allowance for credit losses by approximately $ billion and reduced retained earnings net of deferred tax balances. When determining expected losses, the Company uses multiple economic scenarios and a three-year reasonable and supportable forecast period, which incorporates historical loss experience in years two and three. After the forecast period, the Company fully reverts to long-term historical loss experience, adjusted for prepayments, to estimate losses over the remaining life. The increase in the allowance was primarily related to the commercial , credit card, installment and other retail loan portfolios where the allowance for loan losses had not previously considered the full term of the loans . The adoption of this guidance did not have a material impact on the Company’s available-for-sale securities as most of this portfolio consists of U.S. Treasury and residential agency mortgage-backed securities that inherently have an immaterial risk of loss.
Accounting for Transfers and Servicing of Financial Assets	In accordance with the accounting guidance for asset transfers, the Company considers any ongoing involvement with transferred assets in determining whether the assets can be derecognized from the balance sheet.For loans sold under participation agreements, the Company also considers whether the terms of the loan participation agreement meet the accounting definition of a participating interest. With the exception of servicing and certain performance-based guarantees, the Company’s continuing involvement with financial assets sold is minimal and generally limited to market customary representation and warranty clauses. Any gain or loss on sale depends on the previous carrying amount of the transferred financial assets, the consideration received, and any liabilities incurred in exchange for the transferred assets. Upon transfer, any servicing assets and other interests that continue to be held by the Company are initially recognized at fair value.
Variable Interest Entities	The Company is not required to consolidate VIEs in which it has concluded it does not have a controlling financial interest, and thus is not the primary beneficiary. In such cases, the Company does not have both the power to direct the entities’ most significant activities and the obligation to absorb losses or the right to receive benefits that could potentially be significant to the VIEs. The Company’s investments in these unconsolidated VIEs are carried in other assets on the Consolidated Balance Sheet. The Company’s unfunded capital and other commitments related to these unconsolidated VIEs are generally carried in other liabilities on the Consolidated Balance Sheet. The Company’s maximum exposure to loss from these unconsolidated VIEs include the investment recorded on the Company’s Consolidated Balance Sheet, net of unfunded capital commitments, and previously recorded tax credits which remain subject to recapture by taxing authorities based on compliance features required to be met at the project level. While the Company believes potential losses from these investments are remote, the maximum exposure was determined by assuming a scenario where the community-based business and housing projects completely fail and do not meet certain government compliance requirements resulting in recapture of the related tax credits.
Netting Arrangements for Certain Financial Instruments	The Company’s derivative portfolio consists of bilateral over-the-counter trades, certain interest rate derivatives and credit contracts required to be centrally cleared through clearinghouses per current regulations, and exchange-traded positions which may include U.S. Treasury and Eurodollar futures or options on U.S. Treasury futures. The Company’s derivative contracts typically include offsetting rights (referred to as netting arrangements), and depending on expected volume, credit risk, and counterparty preference, collateral maintenance may be required. For all derivatives under collateral support arrangements, fair value is determined daily and, depending on the collateral maintenance requirements, the Company and a counterparty may receive or deliver collateral, based upon the net fair value of all derivative positions between the Company and the counterparty. Collateral is typically cash, but securities may be allowed under collateral arrangements with certain counterparties. Receivables and payables related to cash collateral are included in other assets and other liabilities on the Consolidated Balance Sheet, along with the related derivative asset and liability fair values. Any securities pledged to counterparties as collateral remain on the Consolidated Balance Sheet. Securities received from counterparties as collateral are not recognized on the Consolidated Balance Sheet, unless the counterparty defaults. In general, securities used as collateral can be sold, repledged or otherwise used by the party in possession. No restrictions exist on the use of cash collateral by either party. Refer to Note 19 for further discussion of the Company’s derivatives, including collateral arrangements.As part of the Company’s treasury and broker-dealer operations, the Company executes transactions that are treated as securities sold under agreements to repurchase or securities purchased under agreements to resell, both of which are accounted for as collateralized financings. Securities sold under agreements to repurchase include repurchase agreements and securities loaned transactions. Securities purchased under agreements to resell include reverse repurchase agreements and securities borrowed transactions. For securities sold under agreements to repurchase, the Company records a liability for the cash received, which is included in short-term borrowings on the Consolidated Balance Sheet. For securities purchased under agreements to resell, the Company records a receivable for the cash paid, which is included in other assets on the Consolidated Balance Sheet. Securities transferred to counterparties under repurchase agreements and securities loaned transactions continue to be recognized on the Consolidated Balance Sheet, are measured at fair value, and are included in investment securities or other assets. Securities received from counterparties under reverse repurchase agreements and securities borrowed transactions are not recognized on the Consolidated Balance Sheet unless the counterparty defaults. The securities transferred under repurchase and reverse repurchase transactions typically are U.S. Treasury and agency securities, residential agency mortgage-backed securities or corporate debt securities. The securities loaned or borrowed typically are corporate debt securities traded by the Company’s broker-dealer subsidiary. In general, the securities transferred can be sold, repledged or otherwise used by the party in possession. No restrictions exist on the use of cash collateral by either party. Repurchase/reverse repurchase and securities loaned/borrowed transactions expose the Company to counterparty risk. The Company manages this risk by performing assessments, independent of business line managers, and establishing concentration limits on each counterparty. Additionally, these transactions include collateral arrangements that require the fair values of the underlying securities to be determined daily, resulting in cash being obtained or refunded to counterparties to maintain specified collateral levels. The Company executes its derivative, repurchase/reverse repurchase and securities loaned/borrowed transactions under the respective industry standard agreements. These agreements include master netting arrangements that allow for multiple contracts executed with the same counterparty to be viewed as a single arrangement. This allows for net settlement of a single amount on a daily basis. In the event of default, the master netting arrangement provides for close-out
Fair Values of Assets and Liabilities	The Company uses fair value measurements for the initial recording of certain assets and liabilities, periodic remeasurement of certain assets and liabilities, and disclosures. Derivatives, trading and available-for-sale lower-of-cost-or-fair Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. A fair value measurement reflects all of the assumptions that market participants would use in pricing the asset or liability, including assumptions about the risk inherent in a particular valuation technique, the effect of a restriction on the sale or use of an asset and the risk of nonperformance. The Company groups its assets and liabilities measured at fair value into a three-level hierarchy for valuation techniques used to measure financial assets and financial liabilities at fair value. This hierarchy is based on whether the valuation inputs are observable or unobservable. These levels are: – Level 1—Quoted prices in active markets for identical assets or liabilities. Level 1 includes U.S. Treasury securities, as well as exchange-traded instruments. – Level 2—Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 2 includes debt securities that are traded less frequently than exchange-traded instruments and which are typically valued using third - – Level 3—Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Level 3 assets and liabilities include financial instruments whose values are determined using pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which the determination of fair value requires significant management judgment or estimation. This category includes MSRs and certain derivative contracts.

Investment Securities (Tables)

Investment Securities (Tables)	12 Months Ended
Investment Securities (Tables)	Dec. 31, 2019
Investments, Debt and Equity Securities [Abstract]
Investment Securities Available-for-Sale and Held-to-Maturity	2019 2018 Unrealized Losses Unrealized Losses (Dollars in Millions) Amortized Unrealized Other-than- (a) Other (b) Fair Value Amortized Unrealized Other-than- (a) Other (b) Fair Value Held-to-maturity U.S. Treasury and agencies $ – $ – $ – $ – $ – $ 5,102 $ 2 $ – $ (143 ) $ 4,961 Residential agency mortgage-backed securities – – – – – 40,920 45 – (994 ) 39,971 Asset-backed securities Collateralized debt obligations/Collateralized loan obligations – – – – – – 1 – – 1 Other – – – – – 5 2 – – 7 Obligations of state and political subdivisions – – – – – 6 1 – – 7 Obligations of foreign governments – – – – – 9 – – – 9 Other – – – – – 8 – – – 8 Total held-to-maturity $ – $ – $ – $ – $ – $ 46,050 $ 51 $ – $ (1,137 ) $ 44,964 Available-for-sale U.S. Treasury and agencies $ 19,845 $ 61 $ – $ (67 ) $ 19,839 $ 19,604 $ 11 $ – $ (358 ) $ 19,257 Mortgage-backed securities Residential agency 93,903 557 – (349 ) 94,111 40,542 120 – (910 ) 39,752 Commercial agency 1,482 – – (29 ) 1,453 2 – – – 2 Asset-backed securities Colla teralized de b g g – 1 – – 1 – – – – – Other 375 7 – – 382 397 6 – – 403 Obligations of state and political subdivisions 6,499 318 – (3 ) 6,814 6,836 37 – (172 ) 6,701 Obligations of foreign governments 9 – – – 9 – – – – – Corporate debt securities 4 – – – 4 – – – – – Total available-for-sale $ 122,117 $ 944 $ – $ (448 ) $ 122,613 $ 67,381 $ 174 $ – $ (1,440 ) $ 66,115 (a) Represents impairment not related to credit for those investment securities that have been determined to be other-than-temporarily impaired. (b) Represents unrealized losses on investment securities that have not been determined to be other-than-temporarily impaired.
Amount of Interest Income from Taxable and Non-Taxable Investment Securities	The following table provides information about the amount of interest income from taxable and non-taxable Year Ended December 31 (Dollars in Millions) 2019 2018 2017 Taxable $ 2,680 $ 2,396 $ 2,043 Non-taxable 213 220 189 Total interest income from investment securities $ 2,893 $ 2,616 $ 2,232
Amount of Gross Gains and Losses Realized through Sales of Available-for-Sale Investment Securities	The following table provides information about the amount of gross gains and losses realized through the sales of available-for-sale Year Ended December 31 (Dollars in Millions) 2019 2018 2017 Realized gains $ 99 $ 30 $ 75 Realized losses (26 ) – (18 ) Net realized gains (losses) $ 73 $ 30 $ 57 Income tax (benefit) on net realized gains (losses) $ 18 $ 7 $ 22
Gross Unrealized Losses and Fair Value of Company's Investment Securities	The following table shows the gross unrealized losses and fair value of the Company’s available -for-sale Less Than 12 Months 12 Months or Greater Total (Dollars in Millions) Fair Unrealized Fair Unrealized Fair Unrealized U.S. Treasury and agencies $ 3,869 $ (40 ) $ 6,265 $ (27 ) $ 10,134 $ (67 ) Residential agency mortgage-backed securities 16,292 (46 ) 24,346 (303 ) 40,638 (349 ) Commercial agency mortgage-backed securities 1,453 (29 ) – – 1,453 (29 ) Other asset-backed securities – – 2 – 2 – Obligations of state and political subdivisions 365 (3 ) – – 365 (3 ) Corporate debt securities 4 – – – 4 – Total investment securities $ 21,983 $ (118 ) $ 30,613 $ (330 ) $ 52,596 $ (448 )
Amortized cost, fair value and yield by maturity date of held-to-maturity and available-for-sale investment securities	The following table provides information about the amortized cost, fair value and yield by maturity date of the available-for-sale (Dollars in Millions) Amortized Fair Weighted- in Weighted- (e) U.S. Treasury and Agencies Maturing in one year or less $ 4,243 $ 4,242 .6 1.61 % Maturing after one year through five years 12,881 12,901 2.4 1.65 Maturing after five years through ten years 2,721 2,696 7.5 1.95 Maturing after ten years – – – – Total $ 19,845 $ 19,839 2.7 1.68 % Mortgage-Backed Securities (a) Maturing in one year or less $ 197 $ 197 .7 2.28 % Maturing after one year through five years 66,940 67,102 3.6 2.30 Maturing after five years through ten years 27,339 27,349 6.0 2.58 Maturing after ten years 909 916 11.4 2.76 Total $ 95,385 $ 95,564 4.4 2.39 % Asset-Backed Securities (a) Maturing in one year or less $ – $ – – — % Maturing after one year through five years 374 381 3.1 3.09 Maturing after five years through ten years 1 1 6.1 2.56 Maturing after ten years – 1 15.3 2.41 Total $ 375 $ 383 3.1 3.09 % Obligations of State and Political Subdivisions (b)(c) Maturing in one year or less $ 66 $ 66 .1 5.81 % Maturing after one year through five years 695 722 3.0 4.50 Maturing after five years through ten years 5,720 6,004 7.1 4.24 Maturing after ten years 18 22 14.0 6.15 Total $ 6,499 $ 6,814 6.6 4.29 % Other Maturing in one year or less $ 13 $ 13 .3 2.66 % Maturing after one year through five years – – – – Maturing after five years through ten years – – – – Maturing after ten years – – – – Total $ 13 $ 13 .3 2.66 % Total investment securities (d) $ 122,117 $ 122,613 4.2 2.38 % (a) Information related to asset and mortgage-backed securities included above is presented based upon weighted-average maturities that take into account anticipated future prepayments. (b) Information related to obligations of state and political subdivisions is presented based upon yield to first optional call date if the security is purchased at a premium, and yield to maturity if the security is purchased at par or a discount. (c) Maturity calculations for obligations of state and political subdivisions are based on the first optional call date for securities with a fair value above par and the contractual maturity date for securities with a fair value equal to or below par. (d) The weighted-average maturity of total available-for-sale and held-to-maturity investment securities was 5.3 years at December 31, 2018, with a corresponding weighted-average yield of 2.52 percent. (e) Weighted-average yields for obligations of state and political subdivisions are presented on a fully-taxable equivalent basis based on a federal income tax rate of 21 percent. Yields on investment securities are computed based on amortized cost balances, excluding any premiums or discounts recorded related to the transfer of investment securities at fair value from available-for-sale to held-to-maturity.

Loans and Allowance for Credi_2

Loans and Allowance for Credit Losses (Tables)	12 Months Ended
Loans and Allowance for Credit Losses (Tables)	Dec. 31, 2019
Receivables [Abstract]
Composition of Loan Portfolio	The composition of the loan portfolio at December 31, disaggregated by class and underlying specific portfolio type, was as follows: (Dollars in Millions) 2019 2018 Commercial Commercial $ 98,168 $ 96,849 Lease financing 5,695 5,595 Total commercial 103,863 102,444 Commercial Real Estate Commercial mortgages 29,404 28,596 Construction and development 10,342 10,943 Total commercial real estate 39,746 39,539 Residential Mortgages Residential mortgages 59,865 53,034 Home equity loans, first liens 10,721 12,000 Total residential mortgages 70,586 65,034 Credit Card 24,789 23,363 Other Retail Retail leasing 8,490 8,546 Home equity and second mortgages 15,036 16,122 Revolving credit 2,899 3,088 Installment 11,038 9,676 Automobile 19,435 18,719 Student 220 279 Total other retail 57,118 56,430 Total loans $ 296,102 $ 286,810
Activity in Allowance for Credit Losses by Portfolio Class	Activity in the allowance for credit losses by portfolio class was as follows: (Dollars in Millions) Commercial Commercial Residential Credit Other Covered Total Balance at December 31 , 2018 Balance at beginning of period $ 1,454 $ 800 $ 455 $ 1,102 $ 630 $ – $ 4,441 Add Provision for credit losses 315 13 (19 ) 919 276 – 1,504 Deduct Loans charged-off 399 21 34 1,028 385 – 1,867 Less recoveries of loans charged-off (114 ) (7 ) (31 ) (135 ) (126 ) – (413 ) Net loans charged-off 285 14 3 893 259 – 1,454 Balance at December 31 , 2019 $ 1,484 $ 799 $ 433 $ 1,128 $ 647 $ – $ 4,491 Balance at December 31 , 2017 Balance at beginning of period $ 1,372 $ 831 $ 449 $ 1,056 $ 678 $ 31 $ 4,417 Add Provision for credit losses 333 (50 ) 23 892 211 (30 ) 1,379 Deduct Loans charged-off 350 9 48 970 383 – 1,760 Less recoveries of loans charged-off (99 ) (28 ) (31 ) (124 ) (124 ) – (406 ) Net loans charged-off 251 (19 ) 17 846 259 – 1,354 Other changes (a) – – – – – (1 ) (1 ) Balance at December 31 , 2018 $ 1,454 $ 800 $ 455 $ 1,102 $ 630 $ – $ 4,441 Balance at December 31 , 2016 Balance at beginning of period $ 1,450 $ 812 $ 510 $ 934 $ 617 $ 34 $ 4,357 Add Provision for credit losses 186 19 (24 ) 908 304 (3 ) 1,390 Deduct Loans charged-off 414 30 65 887 355 – 1,751 Less recoveries of loans charged-off (150 ) (30 ) (28 ) (101 ) (112 ) – (421 ) Net loans charged-off 264 – 37 786 243 – 1,330 Balance at December 31 , 2017 $ 1,372 $ 831 $ 449 $ 1,056 $ 678 $ 31 $ 4,417 (a) Includes net changes in credit losses to be reimbursed by the FDIC and reductions in the allowance for covered loans where the reversal of a previously recorded allowance was offset by an associated decrease in the indemnification asset, and the impact of any loan sales.
Additional Detail of Allowance for Credit Losses and Related Loan Balances by Portfolio Class	Additional detail of the allowance for credit losses by portfolio class was as follows: (Dollars in Millions) Commercial Commercial Residential Credit Other Total Allowance Balance at December 31, 2019 Related to Loans individually evaluated for impairment (a) $ 16 $ 3 $ – $ – $ – $ 19 TDRs collectively evaluated for impairment 20 3 109 81 10 223 Other loans collectively evaluated for impairment 1,448 793 309 1,047 637 4,234 Loans acquired with deteriorated credit quality – – 15 – – 15 Total allowance for credit losses $ 1,484 $ 799 $ 433 $ 1,128 $ 647 $ 4,491 Allowance Balance at December 31, 2018 Related to Loans individually evaluated for impairment (a) $ 16 $ 8 $ – $ – $ – $ 24 TDRs collectively evaluated for impairment 15 3 126 69 12 225 Other loans collectively evaluated for impairment 1,423 788 314 1,033 618 4,176 Loans acquired with deteriorated credit quality – 1 15 – – 16 Total allowance for credit losses $ 1,454 $ 800 $ 455 $ 1,102 $ 630 $ 4,441 (a) Represents the allowance for credit losses related to loans greater than $5 million classified as nonperforming or TDRs. Additional detail of loan balances by portfolio class was as follows: (Dollars in Millions) Commercial Commercial Residential Credit Other Total Loans December 31 , 2019 Loans individually evaluated for impairment (a) $ 253 $ 61 $ – $ – $ – $ 314 TDRs collectively evaluated for impairment 163 138 3,044 263 185 3,793 Other loans collectively evaluated for impairment 103,447 39,513 67,315 24,526 56,933 291,734 Loans acquired with deteriorated credit quality – 34 227 – – 261 Total loans $ 103,863 $ 39,746 $ 70,586 $ 24,789 $ 57,118 $ 296,102 December 31 , 2018 Loans individually evaluated for impairment (a) $ 262 $ 86 $ – $ – $ – $ 348 TDRs collectively evaluated for impairment 151 129 3,252 245 183 3,960 Other loans collectively evaluated for impairment 102,031 39,297 61,465 23,118 56,247 282,158 Loans acquired with deteriorated credit quality – 27 317 – – 344 Total loans $ 102,444 $ 39,539 $ 65,034 $ 23,363 $ 56,430 $ 286,810 (a) Represents loans greater than $5 million classified as nonperforming or TDRs.
Summary of Loans by Portfolio Class, Including Delinquency Status of those that Continue to Accrue Interest and are Nonperforming	The following table provides a summary of loans by portfolio class, including the delinquency status of those that continue to accrue interest, and those that are nonperforming: Accruing (Dollars in Millions) Current 30-89 Days 90 Days or Nonperforming Total December 31, 2019 Commercial $ 103,273 $ 307 $ 79 $ 204 $ 103,863 Commercial real estate 39,627 34 3 82 39,746 Residential mortgages (a) 70,071 154 120 241 70,586 Credit card 24,162 321 306 – 24,789 Other retail 56,463 393 97 165 57,118 Total loans $ 293,596 $ 1,209 $ 605 $ 692 $ 296,102 December 31, 2018 Commercial $ 101,844 $ 322 $ 69 $ 209 $ 102,444 Commercial real estate 39,354 70 – 115 39,539 Residential mortgages (a) 64,443 181 114 296 65,034 Credit card 22,746 324 293 – 23,363 Other retail 55,722 403 108 197 56,430 Total loans $ 284,109 $ 1,300 $ 584 $ 817 $ 286,810 (a) At December 31, 2019, $ 428 430 1.7
Summary of Loans by Portfolio Class and Company's Internal Credit Quality Rating	The following table provides a summary of loans by portfolio class and the Company’s internal credit quality rating: Criticized (Dollars in Millions) Pass Special Classified (a) Total Total December 31 , 2019 Commercial $ 101,850 $ 1,147 $ 866 $ 2,013 $ 103,863 Commercial real estate 38,872 484 390 874 39,746 Residential mortgages (b) 70,174 2 410 412 70,586 Credit card 24,483 – 306 306 24,789 Other retail 56,825 10 283 293 57,118 Total loans $ 292,204 $ 1,643 $ 2,255 $ 3,898 $ 296,102 Total outstanding commitments $ 619,224 $ 2,451 $ 2,873 $ 5,324 $ 624,548 December 31 , 2018 Commercial $ 100,014 $ 1,149 $ 1,281 $ 2,430 $ 102,444 Commercial real estate 38,473 584 482 1,066 39,539 Residential mortgages (b) 64,570 1 463 464 65,034 Credit card 23,070 – 293 293 23,363 Other retail 56,101 6 323 329 56,430 Total loans $ 282,228 $ 1,740 $ 2,842 $ 4,582 $ 286,810 Total outstanding commitments $ 600,407 $ 2,801 $ 3,448 $ 6,249 $ 606,656 (a) Classified rating on consumer loans primarily based on delinquency status. (b) At December 31, 2019, $1.7 billion of GNMA loans 90 days or more past due and $1.6 billion of restructured GNMA loans whose repayments are insured by the Federal Housing Administration or guaranteed by the United States Department of Veterans Affairs were classified with a pass rating, unchanged f rom .
Summary of Impaired Loans, which Include Nonaccrual and TDR Loans, by Portfolio Class	A summary of impaired loans, which include all nonaccrual and TDR loans, by portfolio class was as follows: (Dollars in Millions) Period-end (a) Unpaid Valuation Commitments December 31, 2019 Commercial $ 483 $ 1,048 $ 39 $ 158 Commercial real estate 242 603 7 – Residential mortgages 1,515 1,827 71 – Credit card 263 263 81 – Other retail 318 417 12 2 Total loans, excluding loans purchased from GNMA mortgage pools 2,821 4,158 210 160 Loans purchased from GNMA mortgage pools 1,622 1,622 39 – Total $ 4,443 $ 5,780 $ 249 $ 160 December 31, 2018 Commercial $ 467 $ 1,006 $ 32 $ 106 Commercial real estate 279 511 12 2 Residential mortgages 1,709 1,879 86 – Credit card 245 245 69 – Other retail 335 418 14 5 Total loans, excluding loans purchased from GNMA mortgage pools 3,035 4,059 213 113 Loans purchased from GNMA mortgage pools 1,639 1,639 41 – Total $ 4,674 $ 5,698 $ 254 $ 113 (a) Substantially all loans classified as impaired at December 31, 2019 and 2018, had an associated allowance for credit losses. The total amount of interest income recognized during 2019 on loans classified as impaired at December 31, 2019, excluding those acquired with deteriorated credit quality, was $ 194 246
Impaired Loans Average Recorded Investment and Interest Income Recognized	Additional information on impaired loans follows for the years ended December 31 follows: (Dollars in Millions) Average Interest 2019 Commercial $ 520 $ 9 Commercial real estate 248 11 Residential mortgages 1,622 92 Credit card 257 – Other retail 323 12 Total loans, excluding loans purchased from GNMA mortgage pools 2,970 124 Loans purchased from GNMA mortgage pools 1,638 70 Total $ 4,608 $ 194 2018 Commercial $ 497 $ 8 Commercial real estate 273 13 Residential mortgages 1,817 76 Credit card 236 3 Other retail 309 16 Covered Loans 25 1 Total loans, excluding loans purchased from GNMA mortgage pools 3,157 117 Loans purchased from GNMA mortgage pools 1,640 47 Total $ 4,797 $ 164 2017 Commercial $ 683 $ 7 Commercial real estate 273 11 Residential mortgages 2,135 103 Credit card 229 3 Other retail 287 14 Covered Loans 37 1 Total loans, excluding loans purchased from GNMA mortgage pools 3,644 139 Loans purchased from GNMA mortgage pools 1,672 65 Total $ 5,316 $ 204
Summary of Loans Modified as TDRs	The following table provides a summary of loans modified as TDRs for the years ended December 31, by portfolio class: (Dollars in Millions) Number Pre-Modification Balance Post- Modification Outstanding Balance 2019 Commercial 3,445 $ 376 $ 359 Commercial real estate 136 129 125 Residential mortgages 417 55 54 Credit card 34,247 185 186 Other retail 2,952 63 61 Total loans, excluding loans purchased from GNMA mortgage pools 41,197 808 785 Loans purchased from GNMA mortgage pools 6,257 856 827 Total loans 47,454 $ 1,664 $ 1,612 2018 Commercial 2,824 $ 336 $ 311 Commercial real estate 127 168 169 Residential mortgages 526 73 69 Credit card 33,318 169 171 Other retail 2,462 58 55 Covered Loans 3 1 1 Total loans, excluding loans purchased from GNMA mortgage pools 39,260 805 776 Loans purchased from GNMA mortgage pools 6,268 821 803 Total loans 45,528 $ 1,626 $ 1,579 2017 Commercial 2,758 $ 380 $ 328 Commercial real estate 128 82 78 Residential mortgages 800 90 88 Credit card 33,615 161 162 Other retail 3,881 79 68 Covered Loans 11 2 2 Total loans, excluding loans purchased from GNMA mortgage pools 41,193 794 726 Loans purchased from GNMA mortgage pools 6,791 881 867 Total loans 47,984 $ 1,675 $ 1,593
Summary of Loans Modified as TDRs in the Past Twelve Months that have Subsequently Defaulted	The following table provides a summary of TDR loans that defaulted (fully or partially charged-off (Dollars in Millions) Number Amount 2019 Commercial 1,040 $ 46 Commercial real estate 36 24 Residential mortgages 137 15 Credit card 8,273 40 Other retail 380 10 Total loans, excluding loans purchased from GNMA mortgage pools 9,866 135 Loans purchased from GNMA mortgage pools 997 131 Total loans 10,863 $ 266 2018 Commercial 836 $ 71 Commercial real estate 39 15 Residential mortgages 191 18 Credit card 8,012 35 Other retail 334 5 Covered loans 1 – Total loans, excluding loans purchased from GNMA mortgage pools 9,413 144 Loans purchased from GNMA mortgage pools 1,447 187 Total loans 10,860 $ 331 2017 Commercial 724 $ 53 Commercial real estate 36 9 Residential mortgages 374 41 Credit card 8,372 36 Other retail 415 5 Covered loans 4 – Total loans, excluding loans purchased from GNMA mortgage pools 9,925 144 Loans purchased from GNMA mortgage pools 1,369 177 Total loans 11,294 $ 321

Leases (Tables)

Leases (Tables)	12 Months Ended
Leases (Tables)	Dec. 31, 2019
Text Block [Abstract]
Components of Net Investment in Sales-Type and Direct Financing Leases	The components of the net investment in sales-type and direct financing leases, at December 31, were as follows: (Dollars in Millions) 2019 2018 Lease receivables $ 12,324 $ 12,207 Unguaranteed residual values accruing to the lessor’s benefit 1,834 1,877 Total net investment in sales-type and direct financing leases $ 14,158 $ 14,084
Contractual Future Lease Payments to be Received	The contractual future lease payments to be received by the Company, at December 31, 2019, were as follows: (Dollars in Millions) Sales-type and Operating leases 2020 $ 4,755 $ 176 2021 3,729 142 2022 2,766 103 2023 1,248 69 2024 382 50 Thereafter 483 52 Total lease payments 13,363 $ 592 Amounts representing interest (1,039 ) Lease receivables $ 12,324
Summary of Amounts Relevant to Company's Assets Leased for Use in its Operations	The following table presents amounts relevant to the Company’s assets leased for use in its operations for the year ended December 31, 2019 (Dollars in Millions) Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from operating leases $ 302 Operating cash flows from finance leases 7 Financing cash flows from finance leases 10 Right of use assets obtained in exchange for new operating lease liabilities 134 Right of use assets obtained in exchange for new finance lease liabilities 10
Summary of Weighted-Average Remaining Lease Terms and Discount Rates	The following table presents the weighted-average remaining lease terms and discount rates of the Company’s assets leased for use in its operations at December 31, 2019: Weighted-average remaining lease term of operating leases (in years) 7.4 Weighted-average remaining lease term of finance leases (in years) 10.7 Weighted-average discount rate of operating leases 3.2 % Weighted-average discount rate of finance leases 14.3 %
Schedule of Contractual Future Lease Obligations	The contractual future lease obligations of the Company at December 31, 2019, were as follows: (Dollars in Millions) Operating leases Finance leases 2020 $ 296 $ 17 2021 267 15 2022 226 13 2023 180 12 2024 132 10 Thereafter 391 38 Total lease payments 1,492 105 Amounts representing interest (150 ) (31 ) Lease liabilities $ 1,342 $ 74

Accounting for Transfers and _2

Accounting for Transfers and Servicing of Financial Assets and Variable Interest Entities (Tables)	12 Months Ended
	Dec. 31, 2019
Accounting Policies [Abstract]
Summary of Investments in Community Development and Tax-advantaged VIEs	The following table provides a summary of investments in community development and tax-advantaged At December 31 (Dollars in Millions) 2019 2018 Investment carrying amount $ 6,148 $ 5,823 Unfunded capital and other commitments 2,938 2,778 Maximum exposure to loss 12,118 12,360

Premises and Equipment (Tables)

Premises and Equipment (Tables)	12 Months Ended
Premises and Equipment (Tables)	Dec. 31, 2019
Property, Plant and Equipment [Abstract]
Premises and Equipment	Premises and equipment at December 31 consisted of the following: (Dollars in Millions) 2019 2018 Land $ 504 $ 515 Buildings and improvements 3,513 3,481 Furniture, fixtures and equipment 3,366 3,110 Right of use assets on operating leases 1,141 – Right of use assets on finance leases 111 121 Construction in progress 21 20 8,656 7,247 Less accumulated depreciation and amortization (4,954 ) (4,790 ) Total $ 3,702 $ 2,457

Mortgage Servicing Rights (Tabl

Mortgage Servicing Rights (Tables)	12 Months Ended
Mortgage Servicing Rights (Tables)	Dec. 31, 2019
Text Block [Abstract]
Changes in Fair Value of Capitalized MSRs	Changes in fair value of capitalized MSRs for the years ended December 31, are summarized as follows: (Dollars in Millions) 2019 2018 2017 Balance at beginning of period $ 2,791 $ 2,645 $ 2,591 Rights purchased 20 8 13 Rights capitalized 559 397 445 Rights sold (a) 5 (27 ) – Changes in fair value of MSRs Due to fluctuations in market interest rates ( b (390 ) 98 (23 ) Due to revised assumptions or models ( c 23 56 18 Other changes in fair value ( d (462 ) (386 ) (399 ) Balance at end of period $ 2,546 $ 2,791 $ 2,645 (a) MSRs sold in 2019 include those having a negative fair value, resulting from the related loans being severely delinquent. (b) Includes changes in MSR value associated with changes in market interest rates, including estimated prepayment rates and anticipated earnings on escrow deposits. (c) Includes changes in MSR value not caused by changes in market interest rates, such as changes in cost to service, ancillary income and option adjusted spread, as well as the impact of any model changes. (d) Primarily represents changes due to realization of expected cash flows over time (decay).
Sensitivity to Changes in Interest Rates of the Fair Value of MSR Portfolio and Related Derivative Instruments	The estimated sensitivity to changes in interest rates of the fair value of the MSR portfolio and the related derivative instruments as of December 31 follows: 2019 2018 (Dollars in Millions) Down Down Down Up Up Up 100 bps Down Down Down Up Up Up MSR portfolio $ (663 ) $ (316 ) $ (153 ) $ 141 $ 269 $ 485 $ (501 ) $ (223 ) $ (105 ) $ 92 $ 171 $ 295 Derivative instrument hedges 613 306 152 (143 ) (279 ) (550 ) 455 215 104 (94 ) (177 ) (321 ) Net sensitivity $ (50 ) $ (10 ) $ (1 ) $ (2 ) $ (10 ) $ (65 ) $ (46 ) $ (8 ) $ (1 ) $ (2 ) $ (6 ) $ (26 )
MSRs and Related Characteristics by Portfolio	A summary of the Company’s MSRs and related characteristics by portfolio as of December 31 follows: 2019 2018 (Dollars in Millions) HFA Government Conventional (d) Total HFA Government Conventional (d) Total Servicing portfolio (a) $ 44,906 $ 35,302 $ 143,310 $ 223,518 $ 44,384 $ 35,990 $ 148,910 $ 229,284 Fair value $ 486 $ 451 $ 1,609 $ 2,546 $ 526 $ 465 $ 1,800 $ 2,791 Value (bps) (b) 108 128 112 114 119 129 121 122 Weighted-average servicing fees (bps) 34 39 28 31 34 36 27 30 Multiple (value/servicing fees) 3.15 3.29 4.00 3.67 3.45 3.63 4.52 4.11 Weighted-average note rate 4.65 % 3.99 % 4.07 % 4.17 % 4.59 % 3.97 % 4.06 % 4.15 % Weighted-average age (in years) 3.7 4.9 4.8 4.6 3.3 4.7 4.5 4.3 Weighted-average expected prepayment (constant prepayment rate) 12.2 % 13.7 % 12.2 % 12.4 % 9.8 % 11.0 % 9.1 % 9.5 % Weighted-average expected life (in years) 6.5 5.7 5.9 6.0 7.7 6.7 7.1 7.2 Weighted-average option adjusted spread (c) 8.4 % 7.9 % 6.9 % 7.3 % 8.6 % 8.3 % 7.2 % 7.6 % (a) Represents principal balance of mortgages having corresponding MSR asset. (b) Calculated as fair value divided by the servicing portfolio. (c) Option adjusted spread is the incremental spread added to the risk-free rate to reflect optionality and other risk inherent in the MSRs. (d) Represents loans sold primarily to GSEs.

Intangible Assets (Tables)

Intangible Assets (Tables)	12 Months Ended
Intangible Assets (Tables)	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	Intangible assets consisted of the following: At December 31 (Dollars in Millions) Estimated Life (a) Amortization Method (b) Balance 2019 2018 Goodwill (c) $ 9,655 $ 9,369 Merchant processing contracts 6 years/7 years SL/AC 225 155 Core deposit benefits 22 years/5 years SL/AC 82 104 Mortgage servicing rights (c) 2,546 2,791 Trust relationships 10 years/7 years SL/AC 27 34 Other identified intangibles 6 years/4 years SL/AC 343 308 Total $ 12,878 $ 12,761 (a) Estimated life represents the amortization period for assets subject to the straight line method and the weighted - (b) Amortization methods: SL = straight line method AC = accelerated methods generally based on cash flows (c) Goodwill is evaluated for impairment, but not amortized. Mortgage servicing rights are recorded at fair value, and are not amortized.
Aggregate Amortization Expense	Aggregate amortization expense consisted of the following: Year Ended December 31 (Dollars in Millions) 2019 2018 2017 Merchant processing contracts $ 45 $ 24 $ 24 Core deposit benefits 22 26 30 Trust relationships 10 11 14 Other identified intangibles 91 100 107 Total $ 168 $ 161 $ 175
Estimated Amortization Expense	The estimated amortization expense for the next five years is as follows: (Dollars in Millions) 2020 $ 155 2021 130 2022 109 2023 76 2024 60
Changes in Carrying Value of Goodwill	The following table reflects the changes in the carrying value of goodwill for the years ended December 31, 2019, 2018 and 2017: (Dollars in Millions) Corporate and Consumer and Wealth Management and Payment Treasury and Consolidated Balance at December 31, 2016 $ 1,647 $ 3,681 $ 1,566 $ 2,450 $ – $ 9,344 Goodwill acquired – – – 62 – 62 Foreign exchange translation and other – – 3 25 – 28 Balance at December 31, 2017 $ 1,647 $ 3,681 $ 1,569 $ 2,537 $ – $ 9,434 Goodwill acquired – – – 105 – 105 Disposal – (155 ) – – – (155 ) Foreign exchange translation and other – (51 ) 49 (13 ) – (15 ) Balance at December 31, 2018 $ 1,647 $ 3,475 $ 1,618 $ 2,629 $ – $ 9,369 Goodwill acquired – – – 285 – 285 Foreign exchange translation and other – – (1 ) 2 – 1 Balance at December 31, 2019 $ 1,647 $ 3,475 $ 1,617 $ 2,916 $ – $ 9,655

Deposits (Tables)

Deposits (Tables)	12 Months Ended
Deposits (Tables)	Dec. 31, 2019
Banking and Thrift [Abstract]
Composition of Deposits	The composition of deposits at December 31 was as follows: (Dollars in Millions) 2019 2018 Noninterest-bearing deposits $ 75,590 $ 81,811 Interest-bearing deposits Interest checking 75,949 73,994 Money market savings 120,082 100,396 Savings accounts 47,401 44,720 Time deposits 42,894 44,554 Total interest-bearing deposits 286,326 263,664 Total deposits $ 361,916 $ 345,475
Maturities of Time Deposits Outstanding	The maturities of time deposits outstanding at December 31, 2019 were as follows: (Dollars in Millions) 2020 $ 37,731 2021 2,700 2022 1,183 2023 673 2024 602 Thereafter 5 Total $ 42,894

Short-Term Borrowings (Tables)

Short-Term Borrowings (Tables)	12 Months Ended
Short-Term Borrowings (Tables)	Dec. 31, 2019
Debt Disclosure [Abstract]
Summary of Short-Term Borrowings	The following table is a summary of short-term borrowings for the last three years: 2019 2018 2017 (Dollars in Millions) Amount Rate Amount Rate Amount Rate At year-end Federal funds purchased $ 828 1.45 % $ 458 2.05 % $ 252 . 77 % Securities sold under agreements to repurchase 1,165 1.41 2,582 2.20 803 . 61 Commercial paper 7,576 1.07 6,940 1.35 8,303 . 68 Other short-term borrowings 14,154 1.94 4,159 2.68 7,293 2.13 Total $ 23,723 1.62 % $ 14,139 1.92 % $ 16,651 1.31 % Average for the year Federal funds purchased $ 1,457 1.94 % $ 1,070 1.70 % $ 528 . 86 % Securities sold under agreements to repurchase 1,770 2.00 2,279 1.87 917 . 44 Commercial paper 8,186 1.45 6,929 . 94 8,236 . 49 Other short-term borrowings 6,724 2.78 11,512 2.27 5,341 1.90 Total $ 18,137 2.04 % $ 21,790 1.78 % $ 15,022 1.00 % Maximum month-end Federal funds purchased $ 3,629 $ 4,532 $ 600 Securities sold under agreements to repurchase 2,755 3,225 927 Commercial paper 9,431 7,846 9,950 Other short-term borrowings 14,154 16,588 7,293 (a) Interest and rates are presented on a fully taxable-equivalent basis utilizing a tax rate of 21 percent for 2019 and 2018 and 35 percent for 2017.

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 (debt with original one consisted (Dollars in Millions) Rate Rate (a) Maturity Date 2019 2018 U.S. Bancorp (Parent Company) Subordinated notes Fixed 2.950 % 2022 $ 1,300 $ 1,300 Fixed 3.600 % 2024 1,000 1,000 Fixed 7.500 % 2026 199 199 Fixed 3.100 % 2026 1,000 1,000 Fixed 3.000 % 2029 1,000 – Medium-term notes Fixed .850 % 2021 2028 13,820 12,345 Floating 2.576 % 2022 250 500 Other (b) 33 (53 ) Subtotal 18,602 16,291 Subsidiaries Federal Home Loan Bank advances Fixed 1.250% - 8.250 % 2020 2026 1,106 307 Floating 2.165% - 2.461 % 2022 2026 3,272 4,272 Bank notes Fixed 1.950% - 3.450 % 2020 2025 9,550 11,600 Floating .600 % 2020 2059 6,789 7,864 Other (c) 848 1,006 Subtotal 21,565 25,049 Total $ 40,167 $ 41,340 (a) Weighted-average interest rates of medium-term notes, Federal Home Loan Bank advances and bank notes were 2.87 percent, 2.42 percent and 2.54 percent, respectively. (b) Includes debt issuance fees and unrealized gains and losses and deferred amounts relating to derivative instruments. (c) Includes consolidated community development and tax-advantaged finance
Maturities of Long-term Debt Outstanding	Maturities of long-term debt outstanding at December 31, 2019, were: (Dollars in Millions) Parent Consolidated 2020 $ – $ 3,772 2021 2,696 9,430 2022 3,790 6,298 2023 – 2,799 2024 5,657 5,663 Thereafter 6,459 12,205 Total $ 18,602 $ 40,167

Shareholder' Equity (Tables)

Shareholder' Equity (Tables)	12 Months Ended
Shareholder' Equity (Tables)	Dec. 31, 2019
Federal Home Loan Banks [Abstract]
Number of Shares Issued and Outstanding and Carrying Amount of Preferred Stock	The number of shares issued and outstanding and the carrying amount of each outstanding series of the Company’s preferred stock were as follows: 2019 2018 At December 31 (Dollars in Millions) Shares Liquidation Discount Carrying Shares Liquidation Discount Carrying Series A 12,510 $ 1,251 $ 145 $ 1,106 12,510 $ 1,251 $ 145 $ 1,106 Series B 40,000 1,000 – 1,000 40,000 1,000 – 1,000 Series F 44,000 1,100 12 1,088 44,000 1,100 12 1,088 Series H 20,000 500 13 487 20,000 500 13 487 Series I 30,000 750 5 745 30,000 750 5 745 Series J 40,000 1,000 7 993 40,000 1,000 7 993 Series K 23,000 575 10 565 23,000 575 10 565 Total preferred stock (a) 209,510 $ 6,176 $ 192 $ 5,984 209,510 $ 6,176 $ 192 $ 5,984 (a) The par value of all shares issued and outstanding at December 31, 2019 and 2018, was $1.00 per share.
Common Stock Repurchased	The following table summarizes the Company’s common stock repurchased in each of the last three years: (Dollars and Shares in Millions) Shares Value 2019 81 $ 4,515 2018 54 2,844 2017 49 2,622
Reconciliation of Transactions Affecting Accumulated Other Comprehensive Income (Loss) Included in Shareholders' Equity	Shareholders’ equity is affected by transactions and valuations of asset and liability positions that require adjustments to accumulated other comprehensive income (loss). The reconciliation of the transactions affecting accumulated other comprehensive income (loss) included in shareholders’ equity for the years ended December 31, is as follows: (Dollars in Millions) Unrealized Gains Available-For-Sale Unrealized Gains From Available-For-Sale Held-To-Maturity Unrealized Gains Unrealized Gains Foreign Currency Total 2019 Balance at beginning of period $ (946 ) $ 14 $ 112 $ (1,418 ) $ (84 ) $ (2,322 ) Changes in unrealized gains and losses 1,693 – (229 ) (380 ) – 1,084 Unrealized gains and losses on 150 (9 ) – – – 141 Foreign currency translation adjustment (a) – – – – 26 26 Reclassification to earnings of realized gains and losses (73 ) (7 ) 11 89 – 20 Applicable income taxes (445 ) 2 55 73 (7 ) (322 ) Balance at end of period $ 379 $ – $ (51 ) $ (1,636 ) $ (65 ) $ (1,373 ) 2018 Balance at beginning of period $ (357 ) $ 17 $ 71 $ (1,066 ) $ (69 ) $ (1,404 ) Revaluation of tax related balances (b) (77 ) 4 15 (229 ) (13 ) (300 ) Changes in unrealized gains and losses (656 ) – 39 (302 ) – (919 ) Foreign currency translation adjustment (a) – – – – 3 3 Reclassification to earnings of realized gains and losses (30 ) (9 ) (5 ) 137 – 93 Applicable income taxes 174 2 (8 ) 42 (5 ) 205 Balance at end of period $ (946 ) $ 14 $ 112 $ (1,418 ) $ (84 ) $ (2,322 ) 2017 Balance at beginning of period $ (431 ) $ 25 $ 55 $ (1,113 ) $ (71 ) $ (1,535 ) Changes in unrealized gains and losses 178 – (5 ) (41 ) – 132 Foreign currency translation adjustment ( a – – – – (2 ) (2 ) Reclassification to earnings of realized gains and losses (57 ) (13 ) 30 117 – 77 Applicable income taxes (47 ) 5 (9 ) (29 ) 4 (76 ) Balance at end of period $ (357 ) $ 17 $ 71 $ (1,066 ) $ (69 ) $ (1,404 ) (a) Represents the impact of changes in foreign currency exchange rates on the Company’s investment in foreign operations and related hedges. (b) Reflects the adoption of new accounting guidance on January 1, 2018 to reclassify the impact of the reduced federal statutory rate for corporations included in 2017 tax reform legislation from accumulated other comprehensive income to retained earnings.
Impact to Net Income for Items Reclassified out of Accumulated Other Comprehensive Income and into Earnings	Additional detail about the impact to net income for items reclassified out of accumulated other comprehensive income (loss) and into earnings for the years ended December 31, is as follows: Impact to Net Income Affected Line Item in the (Dollars in Millions) 2019 2018 2017 Unrealized gains (losses) on investment securities available-for-sale Realized gains (losses) on sale of investment securities $ 73 $ 30 $ 57 Total securities gains (losses), net (18 ) (7 ) (22 ) Applicable income taxes 55 23 35 Net-of-tax Unrealized gains (losses) on investment securities transferred from available-for-sale held-to-maturity Amortization of unrealized gains 7 9 13 Interest income (2 ) (2 ) (5 ) Applicable income taxes 5 7 8 Net-of-tax Unrealized gains (losses) on derivative hedges Realized gains (losses) on derivative hedges (11 ) 5 (30 ) Interest expense 3 (2 ) 11 Applicable income taxes (8 ) 3 (19 ) Net-of-tax Unrealized gains (losses) on retirement plans Actuarial gains (losses) and prior service cost (credit) amortization (89 ) (137 ) (117 ) Other noninterest expense 22 35 45 Applicable income taxes (67 ) (102 ) (72 ) Net-of-tax Total impact to net income $ (15 ) $ (69 ) $ (48 )
Components of regulatory capital and summary of regulatory capital requirements and ratios	The following tables provide in effect, along with the actual components and ratios for the Company and its bank subsidiary , at December 31, 2019 and 2018 : U.S. Bancorp U.S. Bank National (Dollars in Millions) 2019 2018 2019 2018 Basel III standardized approach: Common shareholders’ equity $ 45,869 $ 45,045 $ 48,592 $ 47,728 Less intangible assets Goodwill (net of deferred tax liability) (8,788 ) (8,549 ) (8,806 ) (8,566 ) Other disallowed intangible assets (677 ) (601 ) (710 ) (732 ) Other (a) (691 ) (1,171 ) 38 (112 ) Total common equity tier 1 capital 35,713 34,724 39,114 38,318 Qualifying preferred stock 5,984 5,984 – – Noncontrolling interests eligible for tier 1 capital 28 36 28 36 Other (b) (4 ) (3 ) (4 ) (3 ) Total tier 1 capital 41,721 40,741 39,138 38,351 Eligible portion of allowance for credit losses 4,491 4,441 4,491 4,441 Subordinated debt and noncontrolling interests eligible for tier 2 capital 3,532 2,996 3,365 3,168 Total tier 2 capital 8,023 7,437 7,856 7,609 Total risk-based capital $ 49,744 $ 48,178 $ 46,994 $ 45,960 Risk-weighted assets $ 391,269 $ 381,661 $ 383,560 $ 374,299 Common equity tier 1 capital as a percent of risk-weighted assets 9.1 % 9.1 % 10.2 % 10.2 % Tier 1 capital as a percent of risk-weighted assets 10.7 10.7 10.2 10.2 Total risk-based capital as a percent of risk-weighted assets 12.7 12.6 12.3 12.3 Tier 1 capital as a percent of adjusted quarterly average assets (leverage ratio) 8.8 9.0 8.4 8.6 Basel III advanced approaches (c) : Common shareholders’ equity $ 45,045 $ 47,728 Less intangible assets Goodwill (net of deferred tax liability) (8,549 ) (8,566 ) Other disallowed intangible assets (601 ) (732 ) Other (a) (1,171 ) (112 ) Total common equity tier 1 capital 34,724 38,318 Qualifying preferred stock 5,984 – Noncontrolling interests eligible for tier 1 capital 36 36 Other (b) (3 ) (3 ) Total tier 1 capital 40,741 38,351 Eligible portion of allowance for credit losses 1,399 1,364 Subordinated debt and noncontrolling interests eligible for tier 2 capital 2,996 3,168 Total tier 2 capital 4,395 4,532 Total risk-based capital $ 45,136 $ 42,883 Risk-weighted assets $ 295,002 $ 287,897 Common equity tier 1 capital as a percent of risk-weighted assets 11.8 % 13.3 % Tier 1 capital as a percent of risk-weighted assets 13.8 13.3 Total risk-based capital as a percent of risk-weighted assets 15.3 14.9 Tier 1 capital as a percent of total on- off-balance 7.0 % 7.2 6.7 % 6.9 (a) Includes the impact of items included in other comprehensive income (loss), such as unrealized gains (losses) on available-for-sale (b) Includes the remaining portion of deferred tax assets not eligible for total tier 1 capital. (c) Effective December 31, 2019, the Company is no longer subject to calculating its , or its , Minimum (a) Well- Capitalized Bank Regulatory Capital Requirements 2019 Common equity tier 1 capital as a percent of risk-weighted assets 7.000 % 6.500 % Tier 1 capital as a percent of risk-weighted assets 8.500 8.000 Total risk-based capital as a percent of risk-weighted assets 10.500 10.000 Tier 1 capital as a percent of adjusted quarterly average assets (leverage ratio) 4.000 5.000 Tier 1 capital as a percent of total on- off-balance 3.000 3.000 2018 Common equity tier 1 capital as a percent of risk-weighted assets 6.375 % 6.500 % Tier 1 capital as a percent of risk-weighted assets 7.875 8.000 Total risk-based capital as a percent of risk-weighted assets 9.875 10.000 Tier 1 capital as a percent of adjusted quarterly average assets (leverage ratio) 4.000 5.000 Tier 1 capital as a percent of total on- off-balance 3.000 3.000 (a) The minimum common equity tier 1 capital, tier 1 capital and total risk-based capital ratio requirements reflect a capital conservation buffer requirement of 2.5 percent and 1.875 percent for 2019 and 2018, respectively. Banks and financial services holding companies must maintain minimum capital levels, including a capital conservation buffer requirement, to avoid limitations on capital distributions and certain discretionary compensation payments.

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
Earnings Per Share (Tables)	Dec. 31, 2019
Earnings Per Share [Abstract]
Components of Earnings Per Share	The components of earnings per share were: Year Ended December 31 (Dollars and Shares in Millions, Except Per Share Data) 2019 2018 2017 Net income attributable to U.S. Bancorp $ 6,914 $ 7,096 $ 6,218 Preferred dividends (302 ) (282 ) (267 ) Impact of preferred stock redemption (a) – – (10 ) Earnings allocated to participating stock awards (29 ) (30 ) (28 ) Net income applicable to U.S. Bancorp common shareholders $ 6,583 $ 6,784 $ 5,913 Average common shares outstanding 1,581 1,634 1,677 Net effect of the exercise and assumed purchase of stock awards 2 4 6 Average diluted common shares outstanding 1,583 1,638 1,683 Earnings per common share $ 4.16 $ 4.15 $ 3.53 Diluted earnings per common share $ 4.16 $ 4.14 $ 3.51 (a) Represents stock issuance costs originally recorded in preferred stock upon the issuance of the Company’s Series G Preferred Stock that were reclassified to retained earnings on the date the Company announced its intent to redeem the outstanding shares.

Employee Benefits (Tables)

Employee Benefits (Tables)	12 Months Ended
Employee Benefits (Tables)	Dec. 31, 2019
Retirement Benefits [Abstract]
Summary of Changes in Projected Benefit Obligation, Plan Assets, Funded Status, Amounts Recognized in Consolidated Balance Sheet and Accumulated Other Comprehensive Income (Loss)	The following table summarizes the changes in benefit obligations and plan assets for the years ended December 31, and the funded status and amounts recognized in the Consolidated Balance Sheet at December 31 for the retirement plans: Pension Plans Postretirement (Dollars in Millions) 2019 2018 2019 2018 Change In Projected Benefit Obligation (a) Benefit obligation at beginning of measurement period $ 5,507 $ 5,720 $ 54 $ 68 Service cost 192 208 – – Interest cost 249 224 2 2 Participants’ contributions – – 7 8 Actuarial loss (gain) 1,100 (440 ) (4 ) (7 ) Lump sum settlements (56 ) (50 ) – – Benefit payments (163 ) (155 ) (13 ) (18 ) Federal subsidy on benefits paid – – 1 1 Benefit obligation at end of measurement period (b) $ 6,829 $ 5,507 $ 47 $ 54 Change In Fair Value Of Plan Assets (c) Fair value at beginning of measurement period $ 4,936 $ 5,482 $ 81 $ 87 Actual return on plan assets 1,095 (365 ) 6 – Employer contributions 26 24 4 5 Participants’ contributions – – 6 7 Lump sum settlements (56 ) (50 ) – – Benefit payments (163 ) (155 ) (13 ) (18 ) Fair value at end of measurement period $ 5,838 $ 4,936 $ 84 $ 81 Funded (Unfunded) Status $ (991 ) $ (571 ) $ 37 $ 27 Components Of The Consolidated Balance Sheet Noncurrent benefit asset $ – $ – $ 37 $ 27 Current benefit liability (25 ) (23 ) – – Noncurrent benefit liability (966 ) (548 ) – – Recognized amount $ (991 ) $ (571 ) $ 37 $ 27 Accumulated Other Comprehensive Income (Loss), Pretax Net actuarial gain (loss) $ (2,271 ) $ (1,981 ) $ 68 $ 66 Net prior service credit (cost) – – 14 18 Recognized amount $ (2,271 ) $ (1,981 ) $ 82 $ 84 (a) The increase and the decrease in the projected benefit obligation for 2019 and 2018, respectively, were primarily due to discount rate changes. (b) At December 31, 2019 and 2018, the accumulated benefit obligation for all pension plans was $6.2 billion and $5.0 billion. (c) The increase and the decrease in the fair value of plan assets for 2019 and 2018, respectively, were primary due to market conditions.
Pension Plans with Benefit Obligations in Excess of Plan Assets	The following table provides information for pension plans with benefit obligations in excess of plan assets at December 31: (Dollars in Millions) 2019 2018 Pension Plans with Projected Benefit Obligations in Excess of Plan Assets Projected benefit obligation $ 6,829 $ 5,507 Fair value of plan assets 5,838 4,936 Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets Accumulated benefit obligation $ 553 $ 467 Fair value of plan assets – –
Components of Net Periodic Benefit Cost and Other Amounts Recognized in Accumulated Other Comprehensive Income (Loss)	The following table sets forth the components of net periodic benefit cost and other amounts recognized in accumulated other comprehensive income (loss) for the years ended December 31 for the retirement plans: Pension Plans Postretirement Welfare Plan (Dollars in Millions) 2019 2018 2017 2019 2018 2017 Components Of Net Periodic Benefit Cost Service cost $ 192 $ 208 $ 187 $ – $ – $ – Interest cost 249 224 220 2 2 2 Expected return on plan assets (383 ) (379 ) (284 ) (3 ) (3 ) (3 ) Prior service cost (credit) and transition obligation (asset) amortization – – (2 ) (3 ) (3 ) (3 ) Actuarial loss (gain) amortization 98 146 127 (6 ) (6 ) (5 ) Net periodic benefit cost $ 156 $ 199 $ 248 $ (10 ) $ (10 ) $ (9 ) Other Changes In Plan Assets And Benefit Obligations Recognized In Other Comprehensive Income (Loss) Net actuarial gain (loss) arising during the year $ (388 ) $ (305 ) $ (48 ) $ 7 $ 3 $ 7 Net actuarial loss (gain) amortized during the year 98 146 127 (6 ) (6 ) (5 ) Net prior service cost (credit) and transition obligation (asset) amortized during the year – – (2 ) (3 ) (3 ) (3 ) Total recognized in other comprehensive income (loss) $ (290 ) $ (159 ) $ 77 $ (2 ) $ (6 ) $ (1 ) Total recognized in net periodic benefit cost and other comprehensive income (loss) $ (446 ) $ (358 ) $ (171 ) $ 8 $ 4 $ 8
Weighted Average Assumptions to Determine Projected Benefit Obligations	The following table sets forth weighted - Pension Plans Postretirement (Dollars in Millions) 2019 2018 2019 2018 Discount rate (a) 3.40 % 4.45 % 2.80 % 4.05 % Cash balance interest crediting rate 3.00 3.00 * * Rate of compensation increase (b) 3.56 3.52 * * Health care cost trend rate (c) Prior to age 65 6.25 % 6.50 % After age 65 6.25 % 10.00 % (a) The discount rates were developed using a cash flow matching bond model with a modified duration for the qualified pension plan, non-qualified (b) Determined on an active liability-weighted basis. (c) The 2019 and pre-65 post-65 both * Not applicable
Weighted Average Assumptions Used to Determine Net Periodic Benefit Cost	The following table sets forth weighted - Pension Plans Postretirement Welfare Plan (Dollars in Millions) 2019 2018 2017 2019 2018 2017 Discount rate (a) 4.45 % 3.84 % 4.27 % 4.05 % 3.34 % 3.57 % Cash balance interest crediting rate 3.00 3.00 3.00 * * * Expected return on plan assets (b) 7.25 7.25 7.25 3.50 3.50 3.50 Rate of compensation increase (c) 3.52 3.56 3.58 * * * Health care cost trend rate (d) Prior to age 65 6.50 % 6.75 % 7.00 % After age 65 10.00 6.75 7.00 (a) The discount rates were developed using a cash flow matching bond model with a modified duration for the qualified pension plan, non-qualified (b) With the help of an independent pension consultant, the Company considers several sources when developing its expected long-term rates of return on plan assets assumptions, including, but not limited to, past returns and estimates of future returns given the plans’ asset allocation, economic conditions, and peer group LTROR information. The Company determines its expected long-term rates of return reflecting current economic conditions and plan assets. (c) Determined on an active liability weighted basis. (d) The 2019, 2018 and 2017 pre-65 post-65 both * Not applicable
Summary of Plan Investment Assets Measured at Fair Value	The following table summarizes plan investment assets measured at fair value at December 31: Qualified Pension Plan Postretirement 2019 2018 2019 2018 (Dollars in Millions) Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Level 1 Level 1 Cash and cash equivalents $ 58 $ – $ – $ 58 $ 54 $ – $ – $ 54 $ 40 $ 42 Debt securities 727 1,073 – 1,800 631 904 – 1,535 – – Corporate s Real estate equity securities (a) – – – – 109 – – 109 – – Mutual funds Debt securities – 304 – 304 – 295 – 295 – – Emerging markets equity securities – 136 – 136 – 113 – 113 – – Other – – 3 3 – – 3 3 – – $ 785 $ 1,513 $ 3 2,301 $ 794 $ 1,312 $ 3 2,109 40 42 Plan investment assets not classified in fair value hierarchy (b) Collective investment funds Domestic equity securities 1,328 1,183 27 24 Mid-small (c) 323 340 – – International equity securities 752 643 17 15 Real e 547 146 – – Hedge funds (d) 283 290 – – Private equity funds (e) 304 225 – – Total plan investment assets at fair value $ 5,838 $ 4,936 $ 84 $ 81 (a) At December 31, 2018, securities included $ 56 53 (b) These investments are valued based on net asset value per share as a practical expedient; fair values are provided to reconcile to total investment assets of the plans at fair value. (c) At December 31, 2019 and 2018, securities included $ 323 340 (d) This category consists of several investment strategies diversified across several hedge fund managers. (e) This category consists of several investment strategies diversified across several private equity fund managers.
Summarizes the Changes for Qualified Pension Plan Assets Measured at Fair Value Using Significant Unobservable Inputs (Level 3)	The following table summarizes the changes in fair value for qualified pension plan investment assets measured at fair value using significant unobservable inputs (Level 3) for the years ended December 31: 2019 2018 2017 (Dollars in Millions) Other Other Other Balance at beginning of period $ 3 $ 2 $ 1 Unrealized gains (losses) relating to assets still held at end of year – – – Purchases, sales, and settlements, net – 1 1 Balance at end of period $ 3 $ 3 $ 2
Expected Future Benefit Payments	The following benefit payments are expected to be paid from the retirement plans for the years ended December 31: (Dollars in Millions) Pension Postretirement (a) Medicare 2020 $ 233 $ 7 $ 1 2021 254 6 1 2022 267 6 1 2023 294 6 1 2024 306 5 1 2025-2029 1,811 19 2 (a) Net of expected retiree contributions and before Medicare Part D subsidy.

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 Stock Options Outstanding and Exercised Under Prior and Existing Stock Incentive Plans	The following is a summary of stock options outstanding and exercised under prior and existing stock incentive plans of the Company: Year Ended December 31 Stock Weighted- Weighted-Average Aggregate 2019 Number outstanding at beginning of period 9,115,010 $ 34.52 Granted (a) — — Exercised (3,333,467 ) 26.36 Cancelled (b) (63,287 ) 36.74 Number outstanding at end of period (c) 5,718,256 $ 39.25 4.4 $ 115 Exercisable at end of period 4,869,805 $ 37.67 4.0 $ 105 2018 Number outstanding at beginning of period 12,668,467 $ 32.15 Granted (a) — — Exercised (3,443,494 ) 25.41 Cancelled (b) (109,963 ) 46.72 Number outstanding at end of period (c) 9,115,010 $ 34.52 4.3 $ 102 Exercisable at end of period 7,372,036 $ 31.61 3.5 $ 104 2017 Number outstanding at beginning of period 17,059,241 $ 29.95 Granted 1,066,188 54.97 Exercised (5,389,741 ) 29.58 Cancelled (b) (67,221 ) 43.31 Number outstanding at end of period (c) 12,668,467 $ 32.15 4.5 $ 272 Exercisable at end of period 9,647,937 $ 27.87 3.3 $ 248 (a) The Company did not grant any stock option awards during 2019 and 2018. (b) Options cancelled include both non-vested (c) Outstanding options include stock-based awards that may be forfeited in future periods. The impact of the estimated forfeitures is reflected in compensation expense.
Weighted-Average Estimated Fair Value of Stock Options Granted and Assumptions Utilized by Company for Newly Issued Grants	The following table includes the weighted-average estimated fair value of stock options granted and the assumptions utilized by the Company for newly issued grants for the year ended December 31, 2017: Year Ended December 31 2017 Estimated fair value $ 14.66 Risk-free interest rates 2.0 % Dividend yield 2.6 % Stock volatility factor . 35 Expected life of options (in years) 5.5
Summary of Certain Stock Option Activity	The following summarizes certain stock option activity of the Company: Year Ended December 31 (Dollars in Millions) 2019 2018 2017 Fair value of options vested $ 10 $ 14 $ 13 Intrinsic value of options exercised 95 97 127 Cash received from options exercised 88 87 159 Tax benefit realized from options exercised 24 24 49
Stock Options Outstanding Additional Information	Additional information regarding stock options outstanding as of December 31, 2019, is as follows: Outstanding Options Exercisable Options Range of Exercise Prices Shares Weighted- Weighted- Shares Weighted- $23.36—$25.00 236,661 .2 $ 23.82 236,661 $ 23.82 $25.01—$30.00 1,277,726 1.8 28.65 1,277,726 28.65 $30.01—$35.00 537,881 3.1 33.98 537,881 33.98 $35.01—$40.00 1,251,397 6.1 39.49 885,968 39.49 $40.01—$45.00 1,454,651 4.7 42.42 1,454,068 42.43 $45.01—$50.00 — — — — — $50.01—$55.01 959,940 7.1 54.97 477,501 54.97 5,718,256 4.4 $ 39.25 4,869,805 $ 37.67
Summary of Company's Restricted Shares of Stock and Unit Awards	A summary of the status of the Company’s restricted shares of stock and unit awards is presented below: 2019 2018 2017 Year Ended December 31 Shares Weighted- Value Shares Weighted- Value Shares Weighted- Value Outstanding at beginning of period 6,719,298 $ 48.17 7,446,955 $ 44.49 8,265,507 $ 39.50 Granted 3,519,474 50.45 3,213,023 55.03 2,850,927 54.45 Vested (3,270,778 ) 48.69 (3,373,323 ) 46.42 (3,295,376 ) 40.66 Cancelled (361,161 ) 50.55 (567,357 ) 49.07 (374,103 ) 43.91 Outstanding at end of period 6,606,833 $ 48.99 6,719,298 $ 48.17 7,446,955 $ 44.49

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
Income Taxes (Tables)	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Components of Income Tax Expense	The components of income tax expense were: Year Ended December 31 (Dollars in Millions) 2019 2018 2017 Federal Current $ 1,162 $ 1,287 $ 2,086 Deferred 166 (148 ) (1,180 ) Federal income tax 1,328 1,139 906 State Current 379 395 201 Deferred (59 ) 20 157 State income tax 320 415 358 Total income tax provision $ 1,648 $ 1,554 $ 1,264
Reconciliation of Expected Income Tax Expense at Federal Statutory Rate of 21 Percent and 35 Percent to Company's Applicable Income Tax Expense	A reconciliation of expected income tax expense at the federal statutory rate of 21 percent for 2019 and 2018 and 35 percent for 2017 to the Company’s applicable income tax expense follows: Year Ended December 31 (Dollars in Millions) 2019 2018 2017 Tax at statutory rate $ 1,805 $ 1,822 $ 2,631 State income tax, at statutory rates, net of federal tax benefit 355 352 281 Tax effect of Revaluation of tax related assets and liabilities (a) — — (910 ) Tax credits and benefits, net of related expenses (424 ) (513 ) (774 ) Tax-exempt (120 ) (130 ) (200 ) Nondeductible legal and regulatory expenses 23 52 213 Other items (b) 9 (29 ) 23 Applicable income taxes $ 1,648 $ 1,554 $ 1,264 (a) In late 2017, tax legislation was enacted that, among other provisions, reduced the federal statutory rate for corporations from 35 percent to 21 percent effective in 2018. In accordance with generally accepted accounting principles, the Company revalued its deferred tax assets and liabilities at December 31, 2017, resulting in an estimated net tax benefit of $910 million, which the Company recorded in 2017. (b) Includes excess tax benefits associated with stock-based compensation and adjustments related to deferred tax assets and liabilities.
Reconciliation of Changes in Federal, State and Foreign Unrecognized Tax Position Balances	A reconciliation of the changes in the federal, state and foreign un certain Year Ended December 31 (Dollars in Millions) 2019 2018 2017 Balance at beginning of period $ 335 $ 287 $ 302 Additions for tax positions taken in prior years 168 93 3 Additions for tax positions taken in the current year 6 10 9 Exam resolutions (62 ) (51 ) (23 ) Statute expirations (15 ) (4 ) (4 ) Balance at end of period $ 432 $ 335 $ 287
Significant Components of the Company's Net Deferred Tax Asset (Liability)	The significant components of the Company’s net deferred tax asset (liability) follows: At December 31 (Dollars in Millions) 201 9 2018 Deferred Tax Assets Federal, state and foreign net operating loss and credit carryforwards $ 2,592 $ 2,699 Allowance for credit losses 1,155 1,141 Accrued expenses 485 508 Obligation for operating leases 328 — Pension and postretirement benefits 193 85 Partnerships and other investment assets 91 69 Stock compensation 78 79 Fixed assets 2 58 Securities available-for-sale and financial instruments — 278 Other deferred tax assets, net 257 268 Gross deferred tax assets 5,181 5,185 Deferred Tax Liabilities Leasing activities (2,700 ) (2,652 ) Goodwill and other intangible assets (763 ) (703 ) Mortgage servicing rights (546 ) (642 ) Right of use assets (282 ) — Loans (139 ) (168 ) Securities available-for-sale and financial instruments (111 ) — Other deferred tax liabilities, net (131 ) (102 ) Gross deferred tax liabilities (4,672 ) (4,267 ) Valuation allowance (127 ) (109 ) Net Deferred Tax Asset $ 382 $ 809

Derivative Instruments (Tables)

Derivative Instruments (Tables)	12 Months Ended
Derivative Instruments (Tables)	Dec. 31, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Asset and Liability Management Derivative Positions of Company	The following table summarizes the asset and liability management derivative positions of the Company: Asset Derivatives Liability Derivatives (Dollars in Millions) Notional Fair Weighted-Average Notional Fair Weighted-Average December 31, 2019 Fair value hedges Interest rate contracts Receive fixed/pay floating swaps $ 18,300 $ – 3.89 $ 4,900 $ – 3.49 Cash flow hedges Interest rate contracts Pay fixed/receive floating swaps 1,532 – 6.06 7,150 10 2.11 Net investment hedges Foreign exchange forward contracts – – – 287 3 .04 Other economic hedges Interest rate contracts Futures and forwards Buy 5,409 17 .08 5,477 11 .07 Sell 16,333 13 .81 8,113 25 .03 Options Purchased 10,180 79 2.97 – – – Written 1,270 30 .08 4,238 81 2.07 Receive fixed/pay floating swaps 4,408 – 5.99 5,316 – 13.04 Pay fixed/receive floating swaps 1,259 – 5.67 4,497 – 6.03 Foreign exchange forward contracts 113 1 .05 467 6 .04 Equity contracts 128 2 .45 20 – 1.06 Other (a) 34 – .01 1,823 165 2.45 Total $ 58,966 $ 142 $ 42,288 $ 301 December 31, 2018 Cash flow hedges Interest rate contracts Pay fixed/receive floating swaps $ 7,422 $ 8 3.11 $ 4,320 $ – 1.77 Net investment hedges Foreign exchange forward contracts 209 5 .05 223 1 .05 Other economic hedges Interest rate contracts Futures and forwards Buy 2,839 27 .07 1,140 5 .05 Sell 994 3 .06 13,968 30 .72 Options Purchased 5,080 88 10.77 – – – Written 584 16 .09 3 – .09 Receive fixed/pay floating swaps 3,605 – 14.80 4,333 – 6.97 Pay fixed/receive floating swaps 4,333 – 6.97 1,132 – 7.64 Foreign exchange forward contracts 549 7 .03 75 1 .05 Equity contracts 19 1 .82 104 2 .45 Other (a) 1 – .01 1,458 84 1.50 Total $ 25,635 $ 155 $ 26,756 $ 123 (a) Includes derivative liability swap agreements related to the sale of a portion of the Company’s Class B common and preferred shares of Visa Inc. The Visa swap agreements had a total notional value, fair value and weighted-average remaining maturity of $ 1.8 165 2.50 1.5 84 34 1
Customer-Related Derivative Positions of Company	The following table summarizes the customer-related derivative positions of the Company: Asset Derivatives Liability Derivatives (Dollars in Millions) Notional Fair Weighted-Average Notional Fair Weighted-Average December 31, 2019 Interest rate contracts Receive fixed/pay floating swaps $ 108,560 $ 1,865 4.83 $ 31,544 $ 88 3.83 Pay fixed/receive floating swaps 28,150 30 3.83 101,078 753 4.55 Other (a) 6,895 1 3.45 6,218 2 2.98 Options Purchased 46,406 43 2.06 12,804 47 1.25 Written 6,901 49 1.93 49,741 41 1.82 Futures Buy 894 – .21 – – – Sell 3,874 1 1.18 1,995 – 1.04 Foreign exchange rate contracts Forwards, spots and swaps 36,350 748 .97 36,671 729 1.07 Options Purchased 1,354 17 .54 – – – Written – – – 1,354 17 .54 Credit contracts 2,879 1 3.28 7,488 5 4.33 Total $ 242,263 $ 2,755 $ 248,893 $ 1,682 December 31, 2018 Interest rate contracts Receive fixed/pay floating swaps $ 42,054 $ 754 6.73 $ 60,731 $ 456 4.32 Pay fixed/receive floating swaps 60,970 288 3.90 40,499 420 6.57 Other (a) 5,777 2 3.77 6,496 2 2.72 Options Purchased 41,711 51 1.54 1,940 30 1.98 Written 2,060 32 2.07 39,538 51 1.44 Futures Buy 460 – 1.58 – – – Sell – – – 6,190 1 .59 Foreign exchange rate contracts Forwards, spots and swaps 26,210 681 .91 25,571 663 .88 Options Purchased 2,779 47 .75 – – – Written – – – 2,779 47 .75 Credit contracts 2,318 – 3.50 4,923 2 4.04 Total $ 184,339 $ 1,855 $ 188,667 $ 1,672 (a) Primarily represents floating rate interest rate swaps that pay based on differentials between specified interest rate indexes.
Summary of Effective Portion of Gains (Losses) Recognized in Other Comprehensive Income (Loss) and Gains (Losses) Reclassified from Other Comprehensive Income (Loss) into Earnings	The table below shows the effective portion of the gains (losses) recognized in other comprehensive income (loss) and the gains (losses) reclassified from other comprehensive income (loss) into earnings (net-of-tax) Gains (Losses) Recognized in Other Gains (Losses) Reclassified from (Dollars in Millions) 2019 2018 2017 2019 2018 2017 Asset and Liability Management Positions Cash flow hedges Interest rate contracts $ (171 ) $ 29 $ (3 ) $ (8 ) $ 3 $ (19 ) Net investment hedges Foreign exchange forward contracts 3 39 (56 ) – – – Non-derivative 13 32 (46 ) – – – Note: The Company does not exclude components from effectiveness testing for cash flow and net investment hedges.
Effect of Fair Value and Cash Flow Hedge Accounting Included in Interest Expense on Consolidated Statement of Income	The table below shows the effect of fair value and cash flow hedge accounting on the Consolidated Statement of Income for the years ended December 31: Other Noninterest Income Interest Expense (Dollars in Millions) 2019 2018 2017 2019 2018 2017 Total amount of income and expense line items presented in the Consolidated Statement of Income in which the effects of fair value or cash flow hedges are recorded $ 926 $ 910 $ 774 $ 4,442 $ 3,254 $ 1,966 Asset and Liability Management Positions Fair value hedges Interest rate contract derivatives – – (28 ) (44 ) 5 – Hedged items – – 28 44 (5 ) – Cash Flow hedges Interest rate contract derivatives – – – 11 (5 ) 30 Note: The Company does not exclude components from effectiveness testing for fair value and cash flow hedges. The Company did not reclassify gains or losses into earnings as a result of the discontinuance of cash flow hedges during the years ended December 31, 2019, 2018 and 2017.
Summary of Cumulative Hedging Adjustments and the Carrying Amount of Assets (Liabilities) Designated in Fair Value Hedges	The table below shows cumulative hedging adjustments and the carrying amount of assets (liabilities) designated in fair value hedges: Carrying Amount of the Cumulative Hedging (a) At December 31 (Dollars in Millions) 2019 2018 2019 2018 Line Item in the Consolidated Balance Sheet Long-term Debt $ 23,195 $ – $ 35 $ (27 ) (a) The cumulative hedging adjustment related to discontinued hedging relationships at December 31, 2019 and 2018 was $(7) million and $(27) million, respectively.
Summary of Gains (Losses) Recognized in Earnings for Other Economic Hedges and Customer-Related Positions	The table below shows the gains (losses) recognized in earnings for other economic hedges and the customer-related positions for the years ended December 31: (Dollars in Millions) Location of Gains (Losses) 2019 2018 2017 Asset and Liability Management Positions Other economic hedges Interest rate contracts Futures and forwards Mortgage banking revenue $ 34 $ 110 $ 24 Purchased and written options Mortgage banking revenue 432 188 237 Swaps Mortgage banking revenue 316 (111 ) 35 Foreign exchange forward contracts Other noninterest income (24 ) 39 (69 ) Equity contracts Compensation expense – (4 ) 1 Other Other noninterest income (140 ) 2 (1 ) Customer-Related Positions Interest rate contracts Swaps Commercial products revenue 82 47 67 Purchased and written options Commercial products revenue 10 2 (24 ) Futures Commercial products revenue (5 ) 9 (3 ) Foreign exchange rate contracts Forwards, spots and swaps Commercial products revenue 82 84 92 Purchased and written options Commercial products revenue 1 – 2 Credit contracts Commercial products revenue (18 ) 2 3

Netting Arrangements for Cert_2

Netting Arrangements for Certain Financial Instruments and Securities Financing Activities (Tables)	12 Months Ended
	Dec. 31, 2019
Text Block [Abstract]
Summary of Maturities by Category of Collateral Pledged for Repurchase Agreements and Securities Loaned Transactions	The following table summarizes the maturities by category of collateral pledged for repurchase agreements and securities loaned transactions: (Dollars in Millions) Overnight and Less Than 30-89 Greater Than Total December 31, 2019 Repurchase agreements U.S. Treasury and agencies $ 289 $ — $ — $ — $ 289 Residential agency mortgage-backed securities 266 — — — 266 Corporate debt securities 610 — — — 610 Total repurchase agreements 1,165 — — — 1,165 Securities loaned Corporate debt securities 50 — — — 50 Total securities loaned 50 — — — 50 Gross amount of recognized liabilities $ 1,215 $ — $ — $ — $ 1,215 December 31, 2018 Repurchase agreements U.S. Treasury and agencies $ 134 $ — $ — $ — $ 134 Residential agency mortgage-backed securities 565 — 945 470 1,980 Corporate debt securities 480 — — — 480 Total repurchase agreements 1,179 — 945 470 2,594 Securities loaned Corporate debt securities 227 — — — 227 Total securities loaned 227 — — — 227 Gross amount of recognized liabilities $ 1,406 $ — $ 945 $ 470 $ 2,821
Information on Company's Accounting Netting Adjustments and Items Not Offset in Consolidated Balance Sheet Assets But Available for Offset in Event of Default	The following tables provide information on the Company’s netting adjustments, and items not offset on the Consolidated Balance Sheet but available for offset in the event of default: Gross Recognized Gross Amounts Consolidated (a) Net Amounts Consolidated Gross Amounts Not Offset on (Dollars in Millions) Financial (b) Collateral (c) Net Amount December 31, 2019 Derivative assets (d) $ 2,857 $ (982 ) $ 1,875 $ (80 ) $ (116 ) $ 1,679 Reverse repurchase agreements 1,021 — 1,021 (152 ) (869 ) — Securities borrowed 1,624 — 1,624 — (1,569 ) 55 Total $ 5,502 $ (982 ) $ 4,520 $ (232 ) $ (2,554 ) $ 1,734 December 31, 2018 Derivative assets (d) $ 1,987 $ (942 ) $ 1,045 $ (106 ) $ (16 ) $ 923 Reverse repurchase agreements 205 — 205 (114 ) (91 ) — Securities borrowed 1,069 — 1,069 — (1,039 ) 30 Total $ 3,261 $ (942 ) $ 2,319 $ (220 ) $ (1,146 ) $ 953 (a) Includes $429 million and $236 million of cash collateral related payables that were netted against derivative assets at December 31, 2019 and 2018, respectively. (b) For derivative assets this includes any derivative liability fair values that could be offset in the event of counterparty default; for reverse repurchase agreements this includes any repurchase agreement payables that could be offset in the event of counterparty default; for securities borrowed this includes any securities loaned payables that could be offset in the event of counterparty default. (c) Includes the fair value of securities received by the Company from the counterparty. These securities are not included on the Consolidated Balance Sheet unless the counterparty defaults. (d) Excludes $40 million and $23 million at December 31, 2019 and 2018, respectively, of derivative assets not subject to netting arrangements.
Information on Company's Accounting Netting Adjustments and Items Not Offset in Consolidated Balance Sheet Liabilities But Available for Offset in Event of Default	Gross Recognized Liabilities Gross Amounts Offset on the Consolidated Balance Sheet (a) Net Amounts Presented on the Consolidated Balance Sheet Gross Amounts Not Offset on (Dollars in Millions) Financial Instruments (b) Collateral Pledged (c) Net Amount December 31, 2019 Derivative liabilities (d) $ 1,816 $ (1,067 ) $ 749 $ (80 ) $ – $ 669 Repurchase agreements 1,165 – 1,165 (152 ) (1,012 ) 1 Securities loaned 50 – 50 – (49 ) 1 Total $ 3,031 $ (1,067 ) $ 1,964 $ (232 ) $ (1,061 ) $ 671 December 31, 2018 Derivative liabilities (d) $ 1,710 $ (946 ) $ 764 $ (106 ) $ – $ 658 Repurchase agreements 2,594 – 2,594 (114 ) (2,480 ) – Securities loaned 227 – 227 – (224 ) 3 Total $ 4,531 $ (946 ) $ 3,585 $ (220 ) $ (2,704 ) $ 661 (a) Includes $514 million and $240 million of cash collateral related receivables that were netted against derivative liabilities at December 31, 2019 and 2018, respectively. (b) For derivative liabilities this includes any derivative asset fair values that could be offset in the event of counterparty default; for repurchase agreements this includes any reverse repurchase agreement receivables that could be offset in the event of counterparty default; for securities loaned this includes any securities borrowed receivables that could be offset in the event of counterparty default. (c) Includes the fair value of securities pledged by the Company to the counterparty. These securities are included on the Consolidated Balance Sheet unless the Company defaults. (d) Excludes $167 million and $85 million at December 31, 2019 and 2018, respectively, of derivative liabilities not subject to netting arrangements.

Fair Values of Assets and Lia_2

Fair Values of Assets and Liabilities (Tables)	12 Months Ended
Fair Values of Assets and Liabilities (Tables)	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Valuation Assumption Ranges for MSRs	The following table shows the significant valuation assumption ranges for MSRs at December 31, 2019: Minimum Maximum Weighted (a) Expected prepayment 9 % 22 % 12 % Option adjusted spread 6 10 7 (a) Determined based on the relative fair value of the related mortgage loans serviced.
Valuation Assumption Ranges for Derivative Commitments	The following table shows the significant valuation assumption ranges for the Company’s derivative commitments to purchase and originate mortgage loans at December 31, 2019: Minimum Maximum Weighted (a) Expected loan close rate 12 % 100 % 78 % Inherent MSR value (basis points per loan) 56 221 130 (a) Determined based on the relative fair value of the related mortgage loans.
Balances of Assets and Liabilities Measured at Fair Value on Recurring Basis	The following table summarizes the balances of assets and liabilities measured at fair value on a recurring basis: (Dollars in Millions) Level 1 Level 2 Level 3 Netting Total December 31, 2019 Available-for-sale U.S. Treasury and agencies $ 18,986 $ 853 $ – $ – $ 19,839 Mortgage-backed securities Residential agency – 94,111 – – 94,111 Commercial agency – 1,453 – – 1,453 Asset-backed securities Collateralized debt obligations/Collateralized loan obligations – – 1 – 1 Other – 375 7 – 382 Obligations of state and political subdivisions – 6,813 1 – 6,814 Obligations of foreign governments – 9 – – 9 Corporate debt securities – 4 – – 4 Total available-for-sale 18,986 103,618 9 – 122,613 Mortgage loans held for sale – 5,533 – – 5,533 Mortgage servicing rights – – 2,546 – 2,546 Derivative assets 9 1,707 1,181 (982 ) 1,915 Other assets 312 1,563 – – 1,875 Total $ 19,307 $ 112,421 $ 3,736 $ (982 ) $ 134,482 Derivative liabilities $ – $ 1,612 $ 371 $ (1,067 ) $ 916 Short-term borrowings and other liabilities (a) 50 1,578 – – 1,628 Total $ 50 $ 3,190 $ 371 $ (1,067 ) $ 2,544 December 31, 2018 Available-for-sale U.S. Treasury and agencies $ 18,585 $ 672 $ – $ – $ 19,257 Mortgage-backed securities Residential agency – 39,752 – – 39,752 Commercial agency – 2 – – 2 Other asset-backed securities – 403 – – 403 Obligations of state and political subdivisions – 6,701 – – 6,701 Total available-for-sale 18,585 47,530 – – 66,115 Mortgage loans held for sale – 2,035 – – 2,035 Mortgage servicing rights – – 2,791 – 2,791 Derivative assets – 1,427 583 (942 ) 1,068 Other assets 392 1,273 – – 1,665 Total $ 18,977 $ 52,265 $ 3,374 $ (942 ) $ 73,674 Derivative liabilities $ 1 $ 1,291 $ 503 $ (946 ) $ 849 Short-term borrowings and other liabilities (a) 199 1,019 – – 1,218 Total $ 200 $ 2,310 $ 503 $ (946 ) $ 2,067 Note: Excluded from the table above are equity investments without readily determinable fair values. The Company has elected to carry these investments at historical cost, adjusted for impairment and any changes resulting from observable price changes for identical or similar investments of the issuer. The aggregate carrying amount of these equity investments was $91 million and $86 million at December 31, 2019 and (a) Primarily represents the Company’s obligation on securities sold short required to be accounted for at fair value per applicable accounting guidance.
Changes in Fair Value for All Assets and Liabilities Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (Level 3)	The following table presents the changes in fair value for all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the years ended December 31: (Dollars in Millions) Beginning Net Gains Net Gains Purchases Sales Principal Issuances Settlements Transfers into End of Net Change Held at End of Period 2019 Available-for-sale Asset-backed securities Collateralized debt obligations/Collateralized loan obligations $ – $ – $ – $ – $ – $ – $ – $ – $ 1 $ 1 $ – Other – – – – – – – – 7 7 – Obligations of state and political subdivisions – – – – – – – – 1 1 – Total available-for-sale – – – – – – – – 9 9 – Mortgage servicing rights 2,791 (829 ) (c) – 20 5 – 559 (e) – – 2,546 (829 ) (c) Net derivative assets and liabilities 80 769 (d) – 142 (9 ) – – (172 ) – 810 782 (f) 2018 Mortgage servicing rights $ 2,645 $ (232 ) (c) $ – $ 8 $ (27 ) $ – $ 397 (e) $ – $ – $ 2,791 $ (232 ) (c) Net derivative assets and liabilities 107 21 (g) – 13 (41 ) – – (20 ) – 80 34 (h) 2017 Available-for-sale Residential non-agency Prime (a) $ 242 $ – $ (2 ) $ – $ (234 ) $ (6 ) $ – $ – $ – $ – $ – Non-prime (b) 195 – (17 ) – (175 ) (3 ) – – – – – Other asset-backed securities 2 – – – (2 ) – – – – – – Corporate debt securities 9 – 2 – (11 ) – – – – – – Total available-for-sale 448 – (17 ) (i) – (422 ) (9 ) – – – – – Mortgage servicing rights 2,591 (404 ) (c) – 13 – – 445 (e) – – 2,645 (404 ) (c) Net derivative assets and liabilities 171 317 (j) – 1 (10 ) – – (372 ) – 107 (52 ) (k) (a) Prime securities are those designated as such by the issuer at origination. When an issuer designation is unavailable, the Company determines at acquisition date the categorization based on asset pool characteristics (such as weighted-average credit score, loan-to-value, (b) Includes all securities not meeting the conditions to be designated as prime. (c) Included in mortgage banking revenue. (d) Approximately $287 million included in other noninterest income and $482 million included in mortgage banking revenue. (e) Represents MSRs capitalized during the period. (f) Approximately $747 million included in other noninterest income and $35 million included in mortgage banking revenue. (g) Approximately $(139) million included in other noninterest income and $160 million included in mortgage banking revenue. (h) Approximately $14 million included in other noninterest income and $20 million included in mortgage banking revenue. (i) Included in changes in unrealized gains and losses on investment securities available-for-sale. (j) Approximately $21 million included in other noninterest income and $296 million included in mortgage banking revenue. (k) Approximately $(77) million included in other noninterest income and $25 million included in mortgage banking revenue.
Adjusted Carrying Values for Assets Measured at Fair Value on Nonrecurring Basis	The following table summarizes the balances as of the measurement date of assets measured at fair value on a nonrecurring basis, and still held as of December 31: 2019 2018 (Dollars in Millions) Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Loans (a) $ – $ – $ 136 $ 136 $ – $ – $ 40 $ 40 Other assets (b) – – 46 46 – – 57 57 (a) Represents the carrying value of loans for which adjustments were based on the fair value of the collateral, excluding loans fully charged-off. (b) Primarily represents the fair value of foreclosed properties that were measured at fair value based on an appraisal or broker price opinion of the collateral subsequent to their initial acquisition.
Losses Recognized Related to Nonrecurring Fair Value Measurements of Individual Assets or Portfolios	The following table summarizes losses recognized related to nonrecurring fair value measurements of individual assets or portfolios for the years ended December 31: (Dollars in Millions) 2019 2018 2017 Loans (a) $ 122 $ 83 $ 171 Other assets (b) 17 26 20 (a) Represents write-downs of loans which were based on the fair value of the collateral, excluding loans fully charged-off. (b) Primarily represents related losses of foreclosed properties that were measured at fair value subsequent to their initial acquisition.
Differences Between Aggregate Fair Value Carrying Amount of MLHFS for which Fair Value Option has been Elected and Aggregate Unpaid Principal Amount Contractually Obligated to Receive at Maturity	The following table summarizes the differences between the aggregate fair value carrying amount of MLHFS for which the fair value option has been elected and the aggregate unpaid principal amount that the Company is contractually obligated to receive at maturity as of December 31: 2019 2018 (Dollars in Millions) Fair Value Aggregate Carrying Fair Value Aggregate Carrying Total loans $ 5,533 $ 5,366 $ 167 $ 2,035 $ 1,972 $ 63 Nonaccrual loans 1 1 – 2 2 – Loans 90 days or more past due 1 1 – – – –
Estimated Fair Values of Financial Instruments	The estimated fair values of the Company’s financial instruments as of December 31, are shown in the table below: 2019 2018 Carrying Amount Fair Value Carrying Amount Fair Value (Dollars in Millions) Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total Financial Assets Cash and due from banks $ 22,405 $ 22,405 $ – $ – $ 22,405 $ 21,453 $ 21,453 $ – $ – $ 21,453 Federal funds sold and securities purchased under resale agreements 1,036 – 1,036 – 1,036 306 – 306 – 306 Investment securities held-to-maturity – – – – – 46,050 4,594 40,359 11 44,964 Loans held for sale (a) 45 – – 43 43 21 – – 21 21 Loans 292,082 – – 297,241 297,241 282,837 – – 284,790 284,790 Other 1,923 – 929 994 1,923 2,412 – 1,241 1,171 2,412 Financial Liabilities Time deposits 42,894 – 42,831 – 42,831 44,554 – 44,140 – 44,140 Short-term borrowings (b) 22,095 – 21,461 – 21,461 12,921 – 12,678 – 12,678 Long-term debt 40,167 – 41,077 – 41,077 41,340 – 41,003 – 41,003 Other 3,678 – 1,342 2,336 3,678 1,726 – – 1,726 1,726 (a) Excludes mortgages held for sale for which the fair value option under applicable accounting guidance was elected. (b) Excludes the Company’s obligation on securities sold short required to be accounted for at fair value per applicable accounting guidance.

Guarantees and Contingent Lia_2

Guarantees and Contingent Liabilities (Tables)	12 Months Ended
Guarantees and Contingent Liabilities (Tables)	Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Contract or Notional Amounts of Unfunded Commitments to Extend Credit	The contract or notional amounts of unfunded commitments to extend credit at December 31, 2019, excluding those commitments considered derivatives, were as follows: Term (Dollars in Millions) Less Than Greater Year Total Commercial and commercial real estate loans $ 31,235 $ 108,303 $ 139,538 Corporate and purchasing card loans (a) 29,296 – 29,296 Residential mortgages 416 1 417 Retail credit card loans (a) 111,773 – 111,773 Other retail loans 12,614 24,183 36,797 Other 6,325 – 6,325 (a) Primarily cancelable at the Company’s discretion.
Summary of Other Guarantees and Contingent Liabilities	The following table is a summary of other guarantees and contingent liabilities of the Company at December 31, 2019: (Dollars in Millions) Collateral Carrying Amount Maximum Standby letters of credit $ – $ 48 $ 10,258 Third - – – 7 Securities lending indemnifications 4,564 – 4,468 Asset sales – 68 5,069 Merchant processing 589 61 108,875 Tender option bond program guarantee 2,994 – 2,725 Minimum revenue guarantees – – 3 Other – 71 1,461
Contract or Notional Amount of Letters of Credit	The contract or notional amount of letters of credit at December 31, 2019, were as follows: Term (Dollars in Millions) Less Than Greater Total Standby $ 4,676 $ 5,582 $ 10,258 Commercial 339 28 367

Business Segments (Tables)

Business Segments (Tables)	12 Months Ended
Business Segments (Tables)	Dec. 31, 2019
Text Block [Abstract]
Business Segments Reporting Information Details	Business segment results for the years ended December 31 were as follows: Corporate and Commercial Banking Consumer and Business Banking Wealth Management and Investment Services Year Ended December 31 (Dollars in Millions) 2019 2018 2019 2018 2019 2018 Condensed Income Statement Net interest income (taxable-equivalent basis) $ 2,871 $ 2,936 $ 6,261 $ 6,156 $ 1,157 $ 1,131 Noninterest income 867 843 2,387 2,316 1,799 1,748 Securities gains (losses), net – – – – – – Total net revenue 3,738 3,779 8,648 8,472 2,956 2,879 Noninterest expense 1,607 1,591 5,285 5,232 1,752 1,778 Other intangibles 4 4 20 27 13 16 Total noninterest expense 1,611 1,595 5,305 5,259 1,765 1,794 Income before provision and income taxes 2,127 2,184 3,343 3,213 1,191 1,085 Provision for credit losses 78 65 310 232 (3 ) (2 ) Income before income taxes 2,049 2,119 3,033 2,981 1,194 1,087 Income taxes and taxable-equivalent adjustment 513 531 759 745 299 273 Net income 1,536 1,588 2,274 2,236 895 814 Net (income) loss attributable to noncontrolling interests – – – – – – Net income attributable to U.S. Bancorp $ 1,536 $ 1,588 $ 2,274 $ 2,236 $ 895 $ 814 Average Balance Sheet Loans $ 96,608 $ 93,854 $ 144,595 $ 140,875 $ 10,080 $ 9,364 Other earning assets 3,751 3,072 3,989 3,501 282 184 Goodwill 1,647 1,647 3,475 3,604 1,617 1,618 Other intangible assets 8 11 2,617 2,953 49 63 Assets 106,716 102,801 158,884 155,267 13,330 12,437 Noninterest-bearing deposits 29,152 32,938 27,876 27,691 13,195 14,006 Interest-bearing deposits 72,780 69,913 129,289 124,934 62,031 56,000 Total deposits 101,932 102,851 157,165 152,625 75,226 70,006 Total U.S. Bancorp shareholders’ equity 10,399 10,463 11,713 11,812 2,525 2,476 Payment Services Treasury and Corporate Support Consolidated Company Year Ended December 31 (Dollars in Millions) 2019 2018 2019 2018 2019 2018 Condensed Income Statement Net interest income (taxable-equivalent basis) $ 2,493 $ 2,443 $ 373 $ 369 $ 13,155 $ 13,035 Noninterest income 3,707 (a) 3,599 (a) 998 1,066 9,758 (b) 9,572 (b) Securities gains (losses), net – – 73 30 73 30 Total net revenue 6,200 6,042 1,444 1,465 22,986 22,637 Noninterest expense 2,940 2,859 1,033 843 12,617 12,303 Other intangibles 131 114 – – 168 161 Total noninterest expense 3,071 2,973 1,033 843 12,785 12,464 Income before provision and income taxes 3,129 3,069 411 622 10,201 10,173 Provision for credit losses 1,108 1,081 11 3 1,504 1,379 Income before income taxes 2,021 1,988 400 619 8,697 8,794 Income taxes and taxable-equivalent adjustment 505 497 (325 ) (376 ) 1,751 1,670 Net income 1,516 1,491 725 995 6,946 7,124 Net (income) loss attributable to noncontrolling interests – – (32 ) (28 ) (32 ) (28 ) Net income attributable to U.S. Bancorp $ 1,516 $ 1,491 $ 693 $ 967 $ 6,914 $ 7,096 Average Balance Sheet Loans $ 33,566 $ 31,102 $ 5,837 $ 5,506 $ 290,686 $ 280,701 Other earning assets 348 291 131,481 127,318 139,851 134,366 Goodwill 2,839 2,570 – – 9,578 9,439 Other intangible assets 538 406 – – 3,212 3,433 Assets 39,743 36,912 156,980 149,597 475,653 457,014 Noninterest-bearing deposits 1,205 1,099 2,435 2,462 73,863 78,196 Interest-bearing d 115 110 8,734 4,309 272,949 255,266 Total deposits 1,320 1,209 11,169 6,771 346,812 333,462 Total U.S. Bancorp shareholders’ equity 7,084 6,629 20,902 18,383 52,623 49,763 (a) Presented net of related rewards and rebate costs and certain partner payments of $2.2 billion for 2019 and 2018. (b) Includes revenue generated from certain contracts with customers of $7.3 billion and $7.4 billion for 2019 and 2018, respectively.

U.S. Bancorp (Parent Company) (

U.S. Bancorp (Parent Company) (Tables)	12 Months Ended
U.S. Bancorp (Parent Company) (Tables)	Dec. 31, 2019
Condensed Financial Information Disclosure [Abstract]
Condensed Statement of Financial Position of Parent Company Only	Condensed Balance Sheet At December 31 (Dollars in Millions) 2019 2018 Assets Due from banks, principally interest-bearing $ 11,583 $ 9,969 Available-for-sale 1,631 921 Investments in bank subsidiaries 48,518 47,549 Investments in nonbank subsidiaries 3,128 2,568 Advances to bank subsidiaries 3,850 3,800 Advances to nonbank subsidiaries 1,465 2,543 Other assets 1,211 813 Total assets $ 71,386 $ 68,163 Liabilities and Shareholders’ Equity Short-term funds borrowed $ 8 $ – Long-term debt 18,602 16,291 Other liabilities 923 843 Shareholders’ equity 51,853 51,029 Total liabilities and shareholders’ equity $ 71,386 $ 68,163
Condensed Income Statement of Parent Company Only	Condensed Income Statement Year Ended December 31 (Dollars in Millions) 2019 2018 2017 Income Dividends from bank subsidiaries $ 7,100 $ 5,300 $ 4,800 Dividends from nonbank subsidiaries 6 6 5 Interest from subsidiaries 317 220 159 Other income 25 33 41 Total income 7,448 5,559 5,005 Expense Interest expense 551 471 402 Other expense 140 133 124 Total expense 691 604 526 Income before income taxes and equity in undistributed income of subsidiaries 6,757 4,955 4,479 Applicable income taxes (92 ) (91 ) (176 ) Income of parent company 6,849 5,046 4,655 Equity in undistributed income of subsidiaries 65 2,050 1,563 Net income attributable to U.S. Bancorp $ 6,914 $ 7,096 $ 6,218
Condensed Statement of Cash Flows of Parent Company Only	Condensed Statement of Cash Flows Year Ended December 31 (Dollars in Millions) 2019 2018 2017 Operating Activities Net income attributable to U.S. Bancorp $ 6,914 $ 7,096 $ 6,218 Adjustments to reconcile net income to net cash provided by operating activities Equity in undistributed income of subsidiaries (65 ) (2,050 ) (1,563 ) Other, net 231 359 (125 ) Net cash provided by operating activities 7,080 5,405 4,530 Investing Activities Proceeds from sales and maturities of investment securities 291 39 100 Purchases of investment securities (1,013 ) (10 ) (844 ) Net (increase) decrease in short-term advances to subsidiaries 578 (488 ) (790 ) Long-term advances to subsidiaries (2,600 ) (500 ) – Principal collected on long-term advances to subsidiaries 2,550 – 500 Other, net (341 ) 304 (12 ) Net cash used in investing activities (535 ) (655 ) (1,046 ) Financing Activities Net increase (decrease) in short-term borrowings 8 (1 ) (21 ) Proceeds from issuance of long-term debt 3,743 2,100 3,920 Principal payments or redemption of long-term debt (1,500 ) (1,500 ) (1,250 ) Proceeds from issuance of preferred stock – 565 993 Proceeds from issuance of common stock 88 86 159 Repurchase of preferred stock – – (1,085 ) Repurchase of common stock (4,525 ) (2,822 ) (2,631 ) Cash dividends paid on preferred stock (302 ) (274 ) (284 ) Cash dividends paid on common stock (2,443 ) (2,092 ) (1,928 ) Net cash used in financing activities (4,931 ) (3,938 ) (2,127 ) Change in cash and due from banks 1,614 812 1,357 Cash and due from banks at beginning of year 9,969 9,157 7,800 Cash and due from banks at end of year $ 11,583 $ 9,969 $ 9,157

Accounting Changes - Additional

Accounting Changes - Additional Information (Detail) - USD ($) $ in Billions	Jan. 01, 2020	Dec. 31, 2019
Increase in lease assets related to adoption of accounting guidance		$ 1.3
Increase in lease related liabilities related to adoption of accounting guidance		$ 1.3
Accounting Standards Update 2016-13 [Member] \| Forecast [Member] \| Retained Earnings [Member]
Increase in allowance for credit losses	$ 1.5

Restrictions on Cash and Due _2

Restrictions on Cash and Due from Banks - Additional Information (Detail) - USD ($) $ in Billions	Dec. 31, 2019	Dec. 31, 2018
Cash and Cash Equivalents [Abstract]
Minimum Average Reserve Balances Required By Banking Regulators	$ 3.2	$ 3.1
Balances held at the federal reserve and other financial institutions	$ 8	$ 7.5

Investment Securities - Availab

Investment Securities - Available-for-Sale and Held-to-Maturity (Detail) - USD ($) $ in Millions		Dec. 31, 2019		Dec. 31, 2018
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity securities, Amortized Cost				$ 46,050
Held-to-maturity securities, Unrealized Gains				51
Held-to-maturity securities, Unrealized Losses Other				(1,137)
Held-to-maturity securities, Fair Value				44,964
Available-for-sale Securities, Amortized Cost		$ 122,117	[1]	67,381
Available-for-sale securities, Unrealized Gains		944		174
Available-for-sale securities, Unrealized Losses Other		(448)		(1,440)
Available-for-sale securities, Fair Value	[2]	122,613	[1]	66,115
U.S. Treasury and Agencies [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity securities, Amortized Cost				5,102
Held-to-maturity securities, Unrealized Gains				2
Held-to-maturity securities, Unrealized Losses Other				(143)
Held-to-maturity securities, Fair Value				4,961
Available-for-sale Securities, Amortized Cost		19,845		19,604
Available-for-sale securities, Unrealized Gains		61		11
Available-for-sale securities, Unrealized Losses Other		(67)		(358)
Available-for-sale securities, Fair Value		19,839		19,257
Residential Mortgage-Backed Securities [Member] \| Agency [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity securities, Amortized Cost				40,920
Held-to-maturity securities, Unrealized Gains				45
Held-to-maturity securities, Unrealized Losses Other				(994)
Held-to-maturity securities, Fair Value				39,971
Available-for-sale Securities, Amortized Cost		93,903		40,542
Available-for-sale securities, Unrealized Gains		557		120
Available-for-sale securities, Unrealized Losses Other		(349)		(910)
Available-for-sale securities, Fair Value		94,111		39,752
Commercial Agency [Member] \| Agency [Member]
Schedule of Held-to-maturity Securities [Line Items]
Available-for-sale Securities, Amortized Cost		1,482		2
Available-for-sale securities, Unrealized Losses Other		(29)
Available-for-sale securities, Fair Value		1,453		2
Asset-Backed Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Available-for-sale Securities, Amortized Cost	[3]	375
Available-for-sale securities, Fair Value	[3]	383
Asset-Backed Securities [Member] \| Collateralized Loan Obligations [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity securities, Unrealized Gains				1
Held-to-maturity securities, Fair Value				1
Available-for-sale securities, Unrealized Gains		1
Available-for-sale securities, Fair Value		1
Asset-Backed Securities [Member] \| Other Asset-Backed Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity securities, Amortized Cost				5
Held-to-maturity securities, Unrealized Gains				2
Held-to-maturity securities, Fair Value				7
Available-for-sale Securities, Amortized Cost		375		397
Available-for-sale securities, Unrealized Gains		7		6
Available-for-sale securities, Fair Value		382		403
Obligations of State and Political Subdivisions [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity securities, Amortized Cost				6
Held-to-maturity securities, Unrealized Gains				1
Held-to-maturity securities, Fair Value				7
Available-for-sale Securities, Amortized Cost		6,499	[4],[5]	6,836
Available-for-sale securities, Unrealized Gains		318		37
Available-for-sale securities, Unrealized Losses Other		(3)		(172)
Available-for-sale securities, Fair Value		6,814	[4],[5]	6,701
Obligations of Foreign Governments [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity securities, Amortized Cost				9
Held-to-maturity securities, Fair Value				9
Available-for-sale Securities, Amortized Cost		9
Available-for-sale securities, Fair Value		9
Other [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity securities, Amortized Cost				8
Held-to-maturity securities, Fair Value				$ 8
Corporate Debt Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Available-for-sale Securities, Amortized Cost		4
Available-for-sale securities, Fair Value		$ 4

[1]	The weighted-average maturity of total available-for-sale and held-to-maturity investment securities was 5.3 years at December 31, 2018, with a corresponding weighted-average yield of 2.53 percent.
[2]	Includes only collateral pledged by the Company where counterparties have the right to sell or pledge the collateral.
[3]	Information related to asset and mortgage-backed securities included above is presented based upon weighted-average maturities that take into account anticipated future prepayments.
[4]	Information related to obligations of state and political subdivisions is presented based upon yield to first optional call date if the security is purchased at a premium, and yield to maturity if the security is purchased at par or a discount.
[5]	Maturity calculations for obligations of state and political subdivisions are based on the first optional call date for securities with a fair value above par and the contractual maturity date for securities with a fair value equal to or below par.

Investment Securities - Amount

Investment Securities - Amount of Interest Income from Taxable and Non-Taxable Investment Securities (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Interest Income, Securities, Operating, by Taxable Status [Abstract]
Taxable	$ 2,680	$ 2,396	$ 2,043
Non-taxable	213	220	189
Total interest income from investment securities	$ 2,893	$ 2,616	$ 2,232

Investment Securities - Amoun_2

Investment Securities - Amount of Gross Gains and Losses Realized through Sales of Available-for-Sale Investment Securities (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Debt Securities, Available-for-sale, Realized Gain (Loss), Excluding Other-than-temporary Impairment [Abstract]
Realized gains	$ 99	$ 30	$ 75
Realized losses	(26)		(18)
Net realized gains (losses)	73	30	57
Income tax (benefit) on net realized gains (losses)	$ 18	$ 7	$ 22

Investment Securities - Additio

Investment Securities - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Investments, Debt and Equity Securities [Abstract]
Fair value of securities pledged	$ 8,400	$ 10,900
Fair value of securities pledged as collateral where counterparty has right to repledge or resell	269	$ 2,100
Held-to-maturity investment securities transferred to available-for-sale	43,600
Unrealized gains and losses on held-to-maturity investment securities transferred to available-for-sale	$ 141

Investment Securities - Gross U

Investment Securities - Gross Unrealized Losses and Fair Value of Company's Investment Securities (Detail) $ in Millions	Dec. 31, 2019USD ($)
Continuous Gross Unrealized Losses And Fair Value [Abstract]
Fair Value Less Than 12 Months	$ 21,983
Unrealized Losses Less Than 12 Months	(118)
Fair Value 12 Months or Greater	30,613
Unrealized Losses 12 Months or Greater	(330)
Fair Value Total	52,596
Unrealized Losses Total	(448)
Other Asset-Backed Securities [Member]
Continuous Gross Unrealized Losses And Fair Value [Abstract]
Fair Value 12 Months or Greater	2
Fair Value Total	2
U.S. Treasury and Agencies [Member]
Continuous Gross Unrealized Losses And Fair Value [Abstract]
Fair Value Less Than 12 Months	3,869
Unrealized Losses Less Than 12 Months	(40)
Fair Value 12 Months or Greater	6,265
Unrealized Losses 12 Months or Greater	(27)
Fair Value Total	10,134
Unrealized Losses Total	(67)
Residential Mortgage-Backed Securities [Member]
Continuous Gross Unrealized Losses And Fair Value [Abstract]
Fair Value Less Than 12 Months	16,292
Unrealized Losses Less Than 12 Months	(46)
Fair Value 12 Months or Greater	24,346
Unrealized Losses 12 Months or Greater	(303)
Fair Value Total	40,638
Unrealized Losses Total	(349)
Commercial agency mortgage-backed securities [Member]
Continuous Gross Unrealized Losses And Fair Value [Abstract]
Fair Value Less Than 12 Months	1,453
Unrealized Losses Less Than 12 Months	(29)
Fair Value Total	1,453
Unrealized Losses Total	(29)
Obligations of State and Political Subdivisions [Member]
Continuous Gross Unrealized Losses And Fair Value [Abstract]
Fair Value Less Than 12 Months	365
Unrealized Losses Less Than 12 Months	(3)
Fair Value Total	365
Unrealized Losses Total	(3)
Corporate Debt Securities [Member]
Continuous Gross Unrealized Losses And Fair Value [Abstract]
Fair Value Less Than 12 Months	4
Fair Value Total	$ 4

Investment Securities - Amortiz

Investment Securities - Amortized Cost, Fair Value and Yield by Maturity Date (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2019		Dec. 31, 2018
Contractual Maturities of Investment Securities [Line Items]
Available-for-sale securities, Amortized Cost		$ 122,117	[1]	$ 67,381
Available-for-sale securities, total, fair value	[2]	$ 122,613	[1]	66,115
Available-for-sale securities, total, weighted-average maturity in years	[1]	4 years 2 months 12 days
Available-for-sale securities, total, weighted-average yield	[1]	2.38%
U.S. Treasury and Agencies [Member]
Contractual Maturities of Investment Securities [Line Items]
Available-for-sale securities, maturing in one year or less, amortized cost		$ 4,243
Available-for-sale securities, maturing after one year through five years, amortized cost		12,881
Available-for-sale securities, maturing after five years through ten years, amortized cost		2,721
Available-for-sale securities, Amortized Cost		19,845		19,604
Available-for-sale securities, maturing in one year or less, fair value		4,242
Available-for-sale securities, maturing after one year through five years, fair value		12,901
Available-for-sale securities, maturing after five years through ten years, fair value		2,696
Available-for-sale securities, total, fair value		$ 19,839		19,257
Available-for-sale securities, maturing in one year or less, weighted-average maturity in years		7 months 6 days
Available-for-sale securities, maturing after one year through five years, weighted-average maturity in years		2 years 4 months 24 days
Available-for-sale securities, maturing after five years through ten years, weighted-average maturity in years		7 years 6 months
Available-for-sale securities, total, weighted-average maturity in years		2 years 8 months 12 days
Available-for-sale securities, maturing in one year or less, weighted-average yield	[3]	1.61%
Available-for-sale securities, maturing after one year through five years, weighted-average yield	[3]	1.65%
Available-for-sale securities, maturing after five years through ten years, weighted-average yield	[3]	1.95%
Available-for-sale securities, total, weighted-average yield	[3]	1.68%
Mortgage-Backed Securities [Member]
Contractual Maturities of Investment Securities [Line Items]
Available-for-sale securities, maturing in one year or less, amortized cost	[4]	$ 197
Available-for-sale securities, maturing after one year through five years, amortized cost	[4]	66,940
Available-for-sale securities, maturing after five years through ten years, amortized cost	[4]	27,339
Available-for-sale securities, maturing after ten years, amortized cost	[4]	909
Available-for-sale securities, Amortized Cost	[4]	95,385
Available-for-sale securities, maturing in one year or less, fair value	[4]	197
Available-for-sale securities, maturing after one year through five years, fair value	[4]	67,102
Available-for-sale securities, maturing after five years through ten years, fair value	[4]	27,349
Available-for-sale securities, maturing after ten years, fair value	[4]	916
Available-for-sale securities, total, fair value	[4]	$ 95,564
Available-for-sale securities, maturing in one year or less, weighted-average maturity in years	[4]	8 months 12 days
Available-for-sale securities, maturing after one year through five years, weighted-average maturity in years	[4]	3 years 7 months 6 days
Available-for-sale securities, maturing after five years through ten years, weighted-average maturity in years	[4]	6 years
Available-for-sale securities, maturing after ten years, weighted- average maturity in years	[4]	11 years 4 months 24 days
Available-for-sale securities, total, weighted-average maturity in years	[4]	4 years 4 months 24 days
Available-for-sale securities, maturing in one year or less, weighted-average yield	[3],[4]	2.28%
Available-for-sale securities, maturing after one year through five years, weighted-average yield	[3],[4]	2.30%
Available-for-sale securities, maturing after five years through ten years, weighted-average yield	[3],[4]	2.58%
Available-for-sale securities, maturing after ten years, weighted-average yield	[3],[4]	2.76%
Available-for-sale securities, total, weighted-average yield	[3],[4]	2.39%
Asset-Backed Securities [Member]
Contractual Maturities of Investment Securities [Line Items]
Available-for-sale securities, maturing after one year through five years, amortized cost	[4]	$ 374
Available-for-sale securities, maturing after five years through ten years, amortized cost	[4]	1
Available-for-sale securities, Amortized Cost	[4]	375
Available-for-sale securities, maturing after one year through five years, fair value	[4]	381
Available-for-sale securities, maturing after five years through ten years, fair value	[4]	1
Available-for-sale securities, maturing after ten years, fair value	[4]	1
Available-for-sale securities, total, fair value	[4]	$ 383
Available-for-sale securities, maturing after one year through five years, weighted-average maturity in years	[4]	3 years 1 month 6 days
Available-for-sale securities, maturing after five years through ten years, weighted-average maturity in years	[4]	6 years 1 month 6 days
Available-for-sale securities, maturing after ten years, weighted- average maturity in years	[4]	15 years 3 months 18 days
Available-for-sale securities, total, weighted-average maturity in years	[4]	3 years 1 month 6 days
Available-for-sale securities, maturing after one year through five years, weighted-average yield	[3],[4]	3.09%
Available-for-sale securities, maturing after five years through ten years, weighted-average yield	[3],[4]	2.56%
Available-for-sale securities, maturing after ten years, weighted-average yield	[3],[4]	2.41%
Available-for-sale securities, total, weighted-average yield	[3],[4]	3.09%
Obligations of State and Political Subdivisions [Member]
Contractual Maturities of Investment Securities [Line Items]
Available-for-sale securities, maturing in one year or less, amortized cost	[5],[6]	$ 66
Available-for-sale securities, maturing after one year through five years, amortized cost	[5],[6]	695
Available-for-sale securities, maturing after five years through ten years, amortized cost	[5],[6]	5,720
Available-for-sale securities, maturing after ten years, amortized cost	[5],[6]	18
Available-for-sale securities, Amortized Cost		6,499	[5],[6]	6,836
Available-for-sale securities, maturing in one year or less, fair value	[5],[6]	66
Available-for-sale securities, maturing after one year through five years, fair value	[5],[6]	722
Available-for-sale securities, maturing after five years through ten years, fair value	[5],[6]	6,004
Available-for-sale securities, maturing after ten years, fair value	[5],[6]	22
Available-for-sale securities, total, fair value		$ 6,814	[5],[6]	$ 6,701
Available-for-sale securities, maturing in one year or less, weighted-average maturity in years	[5],[6]	1 month 6 days
Available-for-sale securities, maturing after one year through five years, weighted-average maturity in years	[5],[6]	3 years
Available-for-sale securities, maturing after five years through ten years, weighted-average maturity in years	[5],[6]	7 years 1 month 6 days
Available-for-sale securities, maturing after ten years, weighted- average maturity in years	[5],[6]	14 years
Available-for-sale securities, total, weighted-average maturity in years	[5],[6]	6 years 7 months 6 days
Available-for-sale securities, maturing in one year or less, weighted-average yield	[3],[5],[6]	5.81%
Available-for-sale securities, maturing after one year through five years, weighted-average yield	[3],[5],[6]	4.50%
Available-for-sale securities, maturing after five years through ten years, weighted-average yield	[3],[5],[6]	4.24%
Available-for-sale securities, maturing after ten years, weighted-average yield	[3],[5],[6]	6.15%
Available-for-sale securities, total, weighted-average yield	[3],[5],[6]	4.29%
Other Debt Securities and Obligations of Foreign Governments [Member]
Contractual Maturities of Investment Securities [Line Items]
Available-for-sale securities, maturing in one year or less, amortized cost		$ 13
Available-for-sale securities, Amortized Cost		13
Available-for-sale securities, maturing in one year or less, fair value		13
Available-for-sale securities, total, fair value		$ 13
Available-for-sale securities, maturing in one year or less, weighted-average maturity in years		3 months 18 days
Available-for-sale securities, total, weighted-average maturity in years		3 months 18 days
Available-for-sale securities, maturing in one year or less, weighted-average yield	[3]	2.66%
Available-for-sale securities, total, weighted-average yield	[3]	2.66%

[1]	The weighted-average maturity of total available-for-sale and held-to-maturity investment securities was 5.3 years at December 31, 2018, with a corresponding weighted-average yield of 2.53 percent.
[2]	Includes only collateral pledged by the Company where counterparties have the right to sell or pledge the collateral.
[3]	Weighted-average yields for obligations of state and political subdivisions are presented on a fully-taxable equivalent basis based on a federal income tax rate of 21 percent. Yields on investment securities are computed based on amortized cost balances, excluding any premiums or discounts recorded related to the transfer of investment securities at fair value from available-for-sale to held-to-maturity.
[4]	Information related to asset and mortgage-backed securities included above is presented based upon weighted-average maturities that take into account anticipated future prepayments.
[5]	Information related to obligations of state and political subdivisions is presented based upon yield to first optional call date if the security is purchased at a premium, and yield to maturity if the security is purchased at par or a discount.
[6]	Maturity calculations for obligations of state and political subdivisions are based on the first optional call date for securities with a fair value above par and the contractual maturity date for securities with a fair value equal to or below par.

Investment Securities - Amort_2

Investment Securities - Amortized Cost, Fair Value and Yield by Maturity Date (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Contractual Maturities of Investment Securities [Abstract]
Federal statutory rate	21.00%	21.00%	35.00%
Available for sale and held to maturity securities weighted average maturities		5 years 3 months 18 days
Debt securities available for sale and held to maturity weighted average yield		2.52%

Loans and Allowance for Credi_3

Loans and Allowance for Credit Losses - Composition of Loan Portfolio (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 296,102	$ 286,810
Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	98,168	96,849
Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	103,863	102,444
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	39,746	39,539
Residential Mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	70,586	65,034
Other Retail [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	57,118	56,430
Lease Financing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	5,695	5,595
Commercial Mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	29,404	28,596
Construction and Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	10,342	10,943
Residential Mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	59,865	53,034
Home Equity Loans, First Liens [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	10,721	12,000
Credit Card [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	24,789	23,363
Retail Leasing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	8,490	8,546
Home Equity and Second Mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	15,036	16,122
Revolving Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	2,899	3,088
Installment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	11,038	9,676
Automobile [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	19,435	18,719
Student [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 220	$ 279

Loans and Allowance for Credi_4

Loans and Allowance for Credit Losses - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)MortgageLoanSecurityLoan	Dec. 31, 2018USD ($)
Loans and Allowance for Credit Losses [Line Items]
Loans pledged at the Federal Home Loan Bank	$ 96,200	$ 88,700
Loans pledged at the Federal Reserve Bank	76,300	70,100
Unearned interest and deferred fees and costs on originated loans	781	872
Foreclosed residential real estate property included in other real estate owned	74	106
Foreclosed residential real estate related to mortgage loans whose payments are insured by the Federal Housing Administration or guaranteed by the United States Department of Veterans Affairs	155	235
Residential mortgage loans secured by residential real estate in process of foreclosure	$ 1,500	1,500
Number of residential mortgage loans, home equity and second mortgage loans, and GNMA loans where trial period was unsuccessful and no longer eligible for a permanent modification \| MortgageLoan	826
Outstanding balance of residential mortgage loans, home equity and second mortgage loans, and GNMA loans where trial period was unsuccessful and no longer eligible for a permanent modification	$ 111
Nonperforming loans	692	817
Other real estate non-performing	78	111
Non-performing assets other	59	61
Non-performing assets	829	989
Government National Mortgage Association [Member]
Loans and Allowance for Credit Losses [Line Items]
Residential mortgage loans secured by residential real estate in process of foreclosure	$ 1,200	1,200
Home Equity and Second Mortgages [Member]
Loans and Allowance for Credit Losses [Line Items]
Number of loans in trial period \| SecurityLoan	17
Outstanding balance of loans in trial period	$ 1
Estimated post-modification balance of loans in trial period	$ 1
Residential Mortgages [Member]
Loans and Allowance for Credit Losses [Line Items]
Number of loans in trial period \| SecurityLoan	41
Outstanding balance of loans in trial period	$ 6
Estimated post-modification balance of loans in trial period	6
Nonperforming loans	$ 241	$ 296
Government National Mortgage Association [Member]
Loans and Allowance for Credit Losses [Line Items]
Number of loans in trial period \| SecurityLoan	990
Outstanding balance of loans in trial period	$ 136
Estimated post-modification balance of loans in trial period	$ 135

Loans and Allowance for Credi_5

Loans and Allowance for Credit Losses - Activity in Allowance for Credit Losses by Portfolio Class (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	$ 4,441	$ 4,417	$ 4,357
Provision for credit losses	1,504	1,379	1,390
Loans charged-off	1,867	1,760	1,751
Less recoveries of loans charged-off	(413)	(406)	(421)
Net loans charged-off	1,454	1,354	1,330
Other changes		(1)
Balance at end of period	4,491	4,441	4,417
Commercial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	1,454	1,372	1,450
Provision for credit losses	315	333	186
Loans charged-off	399	350	414
Less recoveries of loans charged-off	(114)	(99)	(150)
Net loans charged-off	285	251	264
Balance at end of period	1,484	1,454	1,372
Commercial Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	800	831	812
Provision for credit losses	13	(50)	19
Loans charged-off	21	9	30
Less recoveries of loans charged-off	(7)	(28)	(30)
Net loans charged-off	14	(19)
Balance at end of period	799	800	831
Residential Mortgages [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	455	449	510
Provision for credit losses	(19)	23	(24)
Loans charged-off	34	48	65
Less recoveries of loans charged-off	(31)	(31)	(28)
Net loans charged-off	3	17	37
Balance at end of period	433	455	449
Other Retail [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	630	678	617
Provision for credit losses	276	211	304
Loans charged-off	385	383	355
Less recoveries of loans charged-off	(126)	(124)	(112)
Net loans charged-off	259	259	243
Balance at end of period	647	630	678
Credit Card [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period	1,102	1,056	934
Provision for credit losses	919	892	908
Loans charged-off	1,028	970	887
Less recoveries of loans charged-off	(135)	(124)	(101)
Net loans charged-off	893	846	786
Balance at end of period	$ 1,128	1,102	1,056
Covered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance at beginning of period		31	34
Provision for credit losses		(30)	(3)
Other changes		$ (1)
Balance at end of period			$ 31

Loans and Allowance for Credi_6

Loans and Allowance for Credit Losses - Additional Detail of Allowance for Credit Losses and Related Loan Balances by Portfolio Class (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Allowance Balance at End of Period
Loans individually evaluated for impairment	$ 19	$ 24
TDRs collectively evaluated for impairment	223	225
Other loans collectively evaluated for impairment	4,234	4,176
Loans acquired with deteriorated credit quality	15	16
Total allowance for credit losses	4,491	4,441	$ 4,417	$ 4,357
Loan Balance at End of Period
Loans individually evaluated for impairment	314	348
TDRs collectively evaluated for impairment	3,793	3,960
Other loans collectively evaluated for impairment	291,734	282,158
Loans acquired with deteriorated credit quality	261	344
Total loans	296,102	286,810
Commercial [Member]
Allowance Balance at End of Period
Loans individually evaluated for impairment	16	16
TDRs collectively evaluated for impairment	20	15
Other loans collectively evaluated for impairment	1,448	1,423
Total allowance for credit losses	1,484	1,454	1,372	1,450
Loan Balance at End of Period
Loans individually evaluated for impairment	253	262
TDRs collectively evaluated for impairment	163	151
Other loans collectively evaluated for impairment	103,447	102,031
Total loans	103,863	102,444
Commercial Real Estate [Member]
Allowance Balance at End of Period
Loans individually evaluated for impairment	3	8
TDRs collectively evaluated for impairment	3	3
Other loans collectively evaluated for impairment	793	788
Loans acquired with deteriorated credit quality		1
Total allowance for credit losses	799	800	831	812
Loan Balance at End of Period
Loans individually evaluated for impairment	61	86
TDRs collectively evaluated for impairment	138	129
Other loans collectively evaluated for impairment	39,513	39,297
Loans acquired with deteriorated credit quality	34	27
Total loans	39,746	39,539
Residential Mortgages [Member]
Allowance Balance at End of Period
TDRs collectively evaluated for impairment	109	126
Other loans collectively evaluated for impairment	309	314
Loans acquired with deteriorated credit quality	15	15
Total allowance for credit losses	433	455	449	510
Loan Balance at End of Period
TDRs collectively evaluated for impairment	3,044	3,252
Other loans collectively evaluated for impairment	67,315	61,465
Loans acquired with deteriorated credit quality	227	317
Total loans	70,586	65,034
Other Retail [Member]
Allowance Balance at End of Period
TDRs collectively evaluated for impairment	10	12
Other loans collectively evaluated for impairment	637	618
Total allowance for credit losses	647	630	678	617
Loan Balance at End of Period
TDRs collectively evaluated for impairment	185	183
Other loans collectively evaluated for impairment	56,933	56,247
Total loans	57,118	56,430
Credit Card [Member]
Allowance Balance at End of Period
TDRs collectively evaluated for impairment	81	69
Other loans collectively evaluated for impairment	1,047	1,033
Total allowance for credit losses	1,128	1,102	$ 1,056	$ 934
Loan Balance at End of Period
TDRs collectively evaluated for impairment	263	245
Other loans collectively evaluated for impairment	24,526	23,118
Total loans	$ 24,789	$ 23,363

Loans and Allowance for Credi_7

Loans and Allowance for Credit Losses - Summary of Loans by Portfolio Class, Including Delinquency Status of those that Continue to Accrue Interest and are Nonperforming (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	$ 293,596	$ 284,109
Accruing 30-89 Days Past Due	1,209	1,300
Accruing 90 Days or More Past Due	605	584
Nonperforming	692	817
Total loans	296,102	286,810
Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	103,273	101,844
Accruing 30-89 Days Past Due	307	322
Accruing 90 Days or More Past Due	79	69
Nonperforming	204	209
Total loans	103,863	102,444
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	39,627	39,354
Accruing 30-89 Days Past Due	34	70
Accruing 90 Days or More Past Due	3
Nonperforming	82	115
Total loans	39,746	39,539
Residential Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	70,071	64,443
Accruing 30-89 Days Past Due	154	181
Accruing 90 Days or More Past Due	120	114
Nonperforming	241	296
Total loans	70,586	65,034
Other Retail [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	56,463	55,722
Accruing 30-89 Days Past Due	393	403
Accruing 90 Days or More Past Due	97	108
Nonperforming	165	197
Total loans	57,118	56,430
Credit Card [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	24,162	22,746
Accruing 30-89 Days Past Due	321	324
Accruing 90 Days or More Past Due	306	293
Total loans	$ 24,789	$ 23,363

Loans and Allowance for Credi_8

Loans and Allowance for Credit Losses - Summary of Loans by Portfolio Class, Including Delinquency Status of those that Continue to Accrue Interest and are Nonperforming (Parenthetical) (Detail) - Government National Mortgage Association [Member] - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans 30-89 days past due purchased from Government National Mortgage Association mortgage pools, classified as current	$ 428	$ 430
Loans 90 days or more past due purchased from Government National Mortgage Association mortgage pools, classified as current	$ 1,700	$ 1,700

Loans and Allowance for Credi_9

Loans and Allowance for Credit Losses - Summary of Loans by Portfolio Class and Company's Internal Credit Quality Rating (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 296,102	$ 286,810
Total outstanding commitments	624,548	606,656
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	292,204	282,228
Total outstanding commitments	619,224	600,407
Special Mention Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,643	1,740
Total outstanding commitments	2,451	2,801
Classified Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,255	2,842
Total outstanding commitments	2,873	3,448
Total Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	3,898	4,582
Total outstanding commitments	5,324	6,249
Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	103,863	102,444
Commercial [Member] \| Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	101,850	100,014
Commercial [Member] \| Special Mention Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,147	1,149
Commercial [Member] \| Classified Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	866	1,281
Commercial [Member] \| Total Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,013	2,430
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	39,746	39,539
Commercial Real Estate [Member] \| Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	38,872	38,473
Commercial Real Estate [Member] \| Special Mention Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	484	584
Commercial Real Estate [Member] \| Classified Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	390	482
Commercial Real Estate [Member] \| Total Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	874	1,066
Residential Mortgages [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	70,586	65,034
Residential Mortgages [Member] \| Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	70,174	64,570
Residential Mortgages [Member] \| Special Mention Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2	1
Residential Mortgages [Member] \| Classified Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	410	463
Residential Mortgages [Member] \| Total Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	412	464
Other Retail [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	57,118	56,430
Other Retail [Member] \| Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	56,825	56,101
Other Retail [Member] \| Special Mention Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	10	6
Other Retail [Member] \| Classified Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	283	323
Other Retail [Member] \| Total Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	293	329
Credit Card [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	24,789	23,363
Credit Card [Member] \| Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	24,483	23,070
Credit Card [Member] \| Classified Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	306	293
Credit Card [Member] \| Total Criticized [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 306	$ 293

Loans and Allowance for Cred_10

Loans and Allowance for Credit Losses - Summary of Loans by Portfolio Class and Company's Internal Credit Quality Rating (Parenthetical) (Detail) - Government National Mortgage Association [Member] $ in Billions	Dec. 31, 2019USD ($)
Financing Receivable, Recorded Investment [Line Items]
Restructured GNMA loans,classified with a pass rating	$ 1.7
GNMA loans 90 days or more past due, classified with a pass rating	$ 1.6

Loans and Allowance for Cred_11

Loans and Allowance for Credit Losses - Summary of Impaired Loans, which Include Nonaccrual and TDR Loans, by Portfolio Class (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Impaired [Line Items]
Period-end Recorded Investment	$ 4,443	$ 4,674
Unpaid Principal Balance	5,780	5,698
Valuation Allowance	249	254
Commitments to Lend Additional Funds	160	113
Commercial [Member]
Financing Receivable, Impaired [Line Items]
Period-end Recorded Investment	483	467
Unpaid Principal Balance	1,048	1,006
Valuation Allowance	39	32
Commitments to Lend Additional Funds	158	106
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Period-end Recorded Investment	242	279
Unpaid Principal Balance	603	511
Valuation Allowance	7	12
Commitments to Lend Additional Funds		2
Residential Mortgages [Member]
Financing Receivable, Impaired [Line Items]
Period-end Recorded Investment	1,515	1,709
Unpaid Principal Balance	1,827	1,879
Valuation Allowance	71	86
Other Retail [Member]
Financing Receivable, Impaired [Line Items]
Period-end Recorded Investment	318	335
Unpaid Principal Balance	417	418
Valuation Allowance	12	14
Commitments to Lend Additional Funds	2	5
Credit Card [Member]
Financing Receivable, Impaired [Line Items]
Period-end Recorded Investment	263	245
Unpaid Principal Balance	263	245
Valuation Allowance	81	69
Total Loans, Excluding Loans Purchased from GNMA Mortgage Pools [Member]
Financing Receivable, Impaired [Line Items]
Period-end Recorded Investment	2,821	3,035
Unpaid Principal Balance	4,158	4,059
Valuation Allowance	210	213
Commitments to Lend Additional Funds	160	113
Government National Mortgage Association [Member]
Financing Receivable, Impaired [Line Items]
Period-end Recorded Investment	1,622	1,639
Unpaid Principal Balance	1,622	1,639
Valuation Allowance	$ 39	$ 41

Loans and Allowance for Cred_12

Loans and Allowance for Credit Losses - Summary of Impaired Loans, which Include Nonaccrual and TDR Loans, by Portfolio Class (Parenthetical) (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)
Loan and Lease Receivables, Impaired [Abstract]
Interest income recognized on impaired loans	$ 194
Interest income that would have been recognized on impaired loans at original contractual loan terms	$ 246

Loans and Allowance for Cred_13

Loans and Allowance for Credit Losses - Impaired Loans Average Recorded Investment and Interest Income Recognized (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	$ 4,608	$ 4,797	$ 5,316
Interest Income Recognized	194	164	204
Commercial [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	520	497	683
Interest Income Recognized	9	8	7
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	248	273	273
Interest Income Recognized	11	13	11
Residential Mortgages [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	1,622	1,817	2,135
Interest Income Recognized	92	76	103
Other Retail [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	323	309	287
Interest Income Recognized	12	16	14
Credit Card [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	257	236	229
Interest Income Recognized		3	3
Covered Loans [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment		25	37
Interest Income Recognized		1	1
Total Loans, Excluding Loans Purchased from GNMA Mortgage Pools [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	2,970	3,157	3,644
Interest Income Recognized	124	117	139
Government National Mortgage Association [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	1,638	1,640	1,672
Interest Income Recognized	$ 70	$ 47	$ 65

Loans and Allowance for Cred_14

Loans and Allowance for Credit Losses - Summary of Loans Modified as TDRs (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)SecurityLoan	Dec. 31, 2018USD ($)SecurityLoan	Dec. 31, 2017USD ($)SecurityLoan
Financing Receivable, Modifications [Line Items]
Number of Loans \| SecurityLoan	47,454	45,528	47,984
Pre-Modification Outstanding Loan Balance	$ 1,664	$ 1,626	$ 1,675
Post-Modification Outstanding Loan Balance	$ 1,612	$ 1,579	$ 1,593
Commercial [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| SecurityLoan	3,445	2,824	2,758
Pre-Modification Outstanding Loan Balance	$ 376	$ 336	$ 380
Post-Modification Outstanding Loan Balance	$ 359	$ 311	$ 328
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| SecurityLoan	136	127	128
Pre-Modification Outstanding Loan Balance	$ 129	$ 168	$ 82
Post-Modification Outstanding Loan Balance	$ 125	$ 169	$ 78
Residential Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| SecurityLoan	417	526	800
Pre-Modification Outstanding Loan Balance	$ 55	$ 73	$ 90
Post-Modification Outstanding Loan Balance	$ 54	$ 69	$ 88
Other Retail [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| SecurityLoan	2,952	2,462	3,881
Pre-Modification Outstanding Loan Balance	$ 63	$ 58	$ 79
Post-Modification Outstanding Loan Balance	$ 61	$ 55	$ 68
Credit Card [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| SecurityLoan	34,247	33,318	33,615
Pre-Modification Outstanding Loan Balance	$ 185	$ 169	$ 161
Post-Modification Outstanding Loan Balance	$ 186	$ 171	$ 162
Covered Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| SecurityLoan		3	11
Pre-Modification Outstanding Loan Balance		$ 1	$ 2
Post-Modification Outstanding Loan Balance		$ 1	$ 2
Total Loans, Excluding Loans Purchased from GNMA Mortgage Pools [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| SecurityLoan	41,197	39,260	41,193
Pre-Modification Outstanding Loan Balance	$ 808	$ 805	$ 794
Post-Modification Outstanding Loan Balance	$ 785	$ 776	$ 726
Government National Mortgage Association [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| SecurityLoan	6,257	6,268	6,791
Pre-Modification Outstanding Loan Balance	$ 856	$ 821	$ 881
Post-Modification Outstanding Loan Balance	$ 827	$ 803	$ 867

Loans and Allowance for Cred_15

Loans and Allowance for Credit Losses - Summary of Loans Modified as TDRs in the Past Twelve Months that have Subsequently Defaulted (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)SecurityLoan	Dec. 31, 2018USD ($)SecurityLoan	Dec. 31, 2017USD ($)SecurityLoan
Financing Receivable, Modifications [Line Items]
Number of Loans	10,863	10,860	11,294
Amount Defaulted \| $	$ 266	$ 331	$ 321
Commercial [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	1,040	836	724
Amount Defaulted \| $	$ 46	$ 71	$ 53
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	36	39	36
Amount Defaulted \| $	$ 24	$ 15	$ 9
Residential Mortgages [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	137	191	374
Amount Defaulted \| $	$ 15	$ 18	$ 41
Other Retail [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	380	334	415
Amount Defaulted \| $	$ 10	$ 5	$ 5
Credit Card [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	8,273	8,012	8,372
Amount Defaulted \| $	$ 40	$ 35	$ 36
Covered Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans		1	4
Total Loans, Excluding Loans Purchased from GNMA Mortgage Pools [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	9,866	9,413	9,925
Amount Defaulted \| $	$ 135	$ 144	$ 144
Government National Mortgage Association [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	997	1,447	1,369
Amount Defaulted \| $	$ 131	$ 187	$ 177

Leases - Additional Information

Leases - Additional Information (Detail) $ in Millions	12 Months Ended
Leases - Additional Information (Detail) $ in Millions	Dec. 31, 2019USD ($)
Operating Leased Assets [Line Items]
Lease revenue	$ 996
Right of use lease assets	1,300
Lease liabilities	1,400
Lease cost	$ 394

Leases - Components of Net Inve

Leases - Components of Net Investment in Sales - Type and Direct Financing Leases (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Net Investment in Leases [Abstract]
Lease receivables	$ 12,324	$ 12,207
Unguaranteed residual values accruing to the lessor's benefit	1,834	1,877
Total net investment in sales-type and direct financing leases	$ 14,158	$ 14,084

Leases - Contractual Future Lea

Leases - Contractual Future Lease Payments to be Received (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Leases [Abstract]
Sales-type and direct finance leases, 2020	$ 4,755
Sales-type and direct finance leases, 2021	3,729
Sales-type and direct finance leases, 2022	2,766
Sales-type and direct finance leases, 2023	1,248
Sales-type and direct finance leases, 2024	382
Sales-type and direct finance leases, thereafter	483
Sales-type and direct finance leases, lease payments	13,363
Sales-type and direct finance leases, amounts representing interest	(1,039)
Sales-type and direct finance leases, lease receivables	12,324	$ 12,207
Operating leases, 2020	176
Operating leases, 2021	142
Operating leases, 2022	103
Operating leases, 2023	69
Operating leases, 2024	50
Operating leases, thereafter	52
Operating leases, lease payments	$ 592

Leases - Summary of Amounts Rel

Leases - Summary of Amounts Relevant to Company's Assets Leased for Use in its Operations (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$ 302
Operating cash flows from finance leases	7
Financing cash flows from finance leases	10
Right of use assets obtained in exchange for new operating lease liabilities	134
Right of use assets obtained in exchange for new finance lease liabilities	$ 10

Leases - Summary of Weighted-Av

Leases - Summary of Weighted-Average Remaining Lease Terms and Discount Rates (Detail)	Dec. 31, 2019
Leases [Abstract]
Weighted-average remaining lease term of operating leases (in years)	7 years 4 months 24 days
Weighted-average remaining lease term of finance leases (in years)	10 years 8 months 12 days
Weighted-average discount rate of operating leases	3.20%
Weighted-average discount rate of finance leases	14.30%

Leases - Schedule of Contractua

Leases - Schedule of Contractual Future Lease Obligations (Detail) $ in Millions	Dec. 31, 2019USD ($)
Contractual Obligation, Fiscal Year Maturity Schedule [Abstract]
Operating leases, 2020	$ 296
Operating leases, 2021	267
Operating leases, 2022	226
Operating leases, 2023	180
Operating leases, 2024	132
Operating leases, Thereafter	391
Operating leases	1,492
Operating leases, amounts representing interest	(150)
Operating leases, lease liabilities	1,342
Finance leases, 2020	17
Finance leases, 2021	15
Finance leases, 2022	13
Finance leases, 2023	12
Finance leases, 2024	10
Finance leases, thereafter	38
Finance leases	105
Finance leases, Amounts representing interest	(31)
Finance leases, lease liabilities	$ 74

Accounting for Transfers and _3

Accounting for Transfers and Servicing of Financial Assets and Variable Interest Entities - Additional Information (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2019		Dec. 31, 2018	Dec. 31, 2017
Variable Interest Entity [Line Items]
Assets related to consolidated VIEs		$ 495,426		$ 467,374
Liabilities related to consolidated VIEs		442,943		415,717
Available-for-sale securities	[1]	122,613	[2]	66,115
Held-to-maturity scurities				46,050
Minimum [Member]
Variable Interest Entity [Line Items]
Aggregate amount of investments in unconsolidated VIEs		1		1
Maximum [Member]
Variable Interest Entity [Line Items]
Aggregate amount of investments in unconsolidated VIEs		87		95
Financial Support Waived Fees [Member]
Variable Interest Entity [Line Items]
Financial or other support to money market funds		30		25	$ 23
Private Investment Funds and Partnerships [Member]
Variable Interest Entity [Line Items]
Investment carrying amount		31		27
Maximum exposure to loss		55		52
Community Development and Tax Advantaged Investments [Member]
Variable Interest Entity [Line Items]
Federal and state income tax credits recognized in tax expense		615		689	711
Expense related to investments		557		604	741
Investment tax credits		506		639	1,500
Expenses related to investments recognized in tax expense		318		275	$ 317
Investment carrying amount		6,148		5,823
Maximum exposure to loss		12,118		12,360
Community Development and Tax Advantaged Investments [Member] \| Variable Interest Entity [Member]
Variable Interest Entity [Line Items]
Assets related to consolidated VIEs		4,000		3,900
Liabilities related to consolidated VIEs		3,200		2,700
Conduit [Member]
Variable Interest Entity [Line Items]
Available-for-sale securities		12
Held-to-maturity scurities				14
Tender Option Bond Program [Member] \| Variable Interest Entity [Member]
Variable Interest Entity [Line Items]
Assets related to consolidated VIEs		3,000		2,400
Liabilities related to consolidated VIEs		$ 2,700		$ 2,300

[1]	Includes only collateral pledged by the Company where counterparties have the right to sell or pledge the collateral.
[2]	The weighted-average maturity of total available-for-sale and held-to-maturity investment securities was 5.3 years at December 31, 2018, with a corresponding weighted-average yield of 2.53 percent.

Accounting for Transfers and _4

Accounting for Transfers and Servicing of Financial Assets and Variable Interest Entities - Summary of Investments in Community Development and Tax-advantaged VIEs (Detail) - Community Development and Tax Advantaged Investments [Member] - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Variable Interest Entity [Line Items]
Investment carrying amount	$ 6,148	$ 5,823
Unfunded capital and other commitments	2,938	2,778
Maximum exposure to loss	$ 12,118	$ 12,360

Premises and Equipment - Premis

Premises and Equipment - Premises and Equipment (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Gross Premises and Equipment	$ 8,656	$ 7,247
Less accumulated depreciation and amortization	(4,954)	(4,790)
Total Premises and Equipment	3,702	2,457
Land [Member]
Property, Plant and Equipment [Line Items]
Gross Premises and Equipment	504	515
Buildings and Improvements [Member]
Property, Plant and Equipment [Line Items]
Gross Premises and Equipment	3,513	3,481
Furniture, Fixtures and Equipment [Member]
Property, Plant and Equipment [Line Items]
Gross Premises and Equipment	3,366	3,110
Right of Use Assets on Operating Leases [Member]
Property, Plant and Equipment [Line Items]
Gross Premises and Equipment	1,141
Right of Use Assets on Finance Leases [Member]
Property, Plant and Equipment [Line Items]
Gross Premises and Equipment	111	121
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Gross Premises and Equipment	$ 21	$ 20

Mortgage Servicing Rights - Add

Mortgage Servicing Rights - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Transfers and Servicing of Financial Assets [Abstract]
Residential mortgage loans serviced for others including subserviced mortgages with no corresponding MSRs asset	$ 226,000	$ 231,500
Gain (Loss) on fair value changes of MSRs due to changes in valuation assumptions and derivatives used to economically hedge MSRs	(24)	47	$ 15
Loan servicing and ancillary fees	$ 734	$ 746	$ 746

Mortgage Servicing Rights - Cha

Mortgage Servicing Rights - Changes in Fair Value of Capitalized MSRs (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Transfers and Servicing of Financial Assets [Abstract]
Balance at beginning of period	$ 2,791	$ 2,645	$ 2,591
Rights purchased	20	8	13
Rights capitalized	559	397	445
Rights sold	5	(27)
Changes in fair value of MSRs
Due to fluctuations in market interest rates	(390)	98	(23)
Due to revised assumptions or models	23	56	18
Other changes in fair value	(462)	(386)	(399)
Balance at end of period	$ 2,546	$ 2,791	$ 2,645

Mortgage Servicing Rights - Sen

Mortgage Servicing Rights - Sensitivity to Changes in Interest Rates of the Fair Value of MSR Portfolio and Related Derivative Instruments (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Down Scenario [Member] \| Mortgage Servicing Rights [Member]
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]
Net fair value 100 basis points	$ (663)	$ (501)
Net fair value 50 basis points	(316)	(223)
Net fair value 25 basis points	(153)	(105)
Down Scenario [Member] \| Derivative [Member]
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]
Net fair value 100 basis points	613	455
Net fair value 50 basis points	306	215
Net fair value 25 basis points	152	104
Down Scenario [Member] \| Net Sensitivity [Member]
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]
Net fair value 100 basis points	(50)	(46)
Net fair value 50 basis points	(10)	(8)
Net fair value 25 basis points	(1)	(1)
Up Scenario [Member] \| Mortgage Servicing Rights [Member]
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]
Net fair value 100 basis points	485	295
Net fair value 50 basis points	269	171
Net fair value 25 basis points	141	92
Up Scenario [Member] \| Derivative [Member]
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]
Net fair value 100 basis points	(550)	(321)
Net fair value 50 basis points	(279)	(177)
Net fair value 25 basis points	(143)	(94)
Up Scenario [Member] \| Net Sensitivity [Member]
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]
Net fair value 100 basis points	(65)	(26)
Net fair value 50 basis points	(10)	(6)
Net fair value 25 basis points	$ (2)	$ (2)

Mortgage Servicing Rights - MSR

Mortgage Servicing Rights - MSRs and Related Characteristics by Portfolio (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)BasisPointMultiple	Dec. 31, 2018USD ($)MultipleBasisPoint	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)
Servicing Assets at Fair Value [Line Items]
Fair value	$ 2,546	$ 2,791	$ 2,645	$ 2,591
Mortgage Servicing Rights [Member]
Servicing Assets at Fair Value [Line Items]
Servicing portfolio	223,518	229,284
Fair value	$ 2,546	$ 2,791
Value (bps) \| BasisPoint	114	122
Weighted-average servicing fees (bps) \| BasisPoint	31	30
Multiple (value/servicing fees) \| Multiple	3.67	4.11
Weighted-average note rate	4.17%	4.15%
Weighted-average age (in years)	4 years 7 months 6 days	4 years 3 months 18 days
Weighted-average expected prepayment (constant prepayment rate)	12.40%	9.50%
Weighted-average expected life (in years)	6 years	7 years 2 months 12 days
Weighted-average option adjusted spread	7.30%	7.60%
HFA [Member] \| Mortgage Servicing Rights [Member]
Servicing Assets at Fair Value [Line Items]
Servicing portfolio	$ 44,906	$ 44,384
Fair value	$ 486	$ 526
Value (bps) \| BasisPoint	108	119
Weighted-average servicing fees (bps) \| BasisPoint	34	34
Multiple (value/servicing fees) \| Multiple	3.15	3.45
Weighted-average note rate	4.65%	4.59%
Weighted-average age (in years)	3 years 8 months 12 days	3 years 3 months 18 days
Weighted-average expected prepayment (constant prepayment rate)	12.20%	9.80%
Weighted-average expected life (in years)	6 years 6 months	7 years 8 months 12 days
Weighted-average option adjusted spread	8.40%	8.60%
Government Insured [Member] \| Mortgage Servicing Rights [Member]
Servicing Assets at Fair Value [Line Items]
Servicing portfolio	$ 35,302	$ 35,990
Fair value	$ 451	$ 465
Value (bps) \| BasisPoint	128	129
Weighted-average servicing fees (bps) \| BasisPoint	39	36
Multiple (value/servicing fees) \| Multiple	3.29	3.63
Weighted-average note rate	3.99%	3.97%
Weighted-average age (in years)	4 years 10 months 24 days	4 years 8 months 12 days
Weighted-average expected prepayment (constant prepayment rate)	13.70%	11.00%
Weighted-average expected life (in years)	5 years 8 months 12 days	6 years 8 months 12 days
Weighted-average option adjusted spread	7.90%	8.30%
Conventional [Member] \| Mortgage Servicing Rights [Member]
Servicing Assets at Fair Value [Line Items]
Servicing portfolio	$ 143,310	$ 148,910
Fair value	$ 1,609	$ 1,800
Value (bps) \| BasisPoint	112	121
Weighted-average servicing fees (bps) \| BasisPoint	28	27
Multiple (value/servicing fees) \| Multiple	4	4.52
Weighted-average note rate	4.07%	4.06%
Weighted-average age (in years)	4 years 9 months 18 days	4 years 6 months
Weighted-average expected prepayment (constant prepayment rate)	12.20%	9.10%
Weighted-average expected life (in years)	5 years 10 months 24 days	7 years 1 month 6 days
Weighted-average option adjusted spread	6.90%	7.20%

Intangible Assets - Intangible

Intangible Assets - Intangible Assets (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 9,655	$ 9,369	$ 9,434	$ 9,344
Mortgage servicing rights	2,546	2,791	$ 2,645	$ 2,591
Total	$ 12,878	12,761
Merchant Processing Contracts [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization Method	SL/AC
Finite-Lived Intangible Assets	$ 225	155
Core Deposit Benefits [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization Method	SL/AC
Finite-Lived Intangible Assets	$ 82	104
Trust Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization Method	SL/AC
Finite-Lived Intangible Assets	$ 27	34
Other Identified Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization Method	SL/AC
Finite-Lived Intangible Assets	$ 343	$ 308
Straight line method [Member] \| Merchant Processing Contracts [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Life	6 years
Straight line method [Member] \| Core Deposit Benefits [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Life	22 years
Straight line method [Member] \| Trust Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Life	10 years
Straight line method [Member] \| Other Identified Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Life	6 years
Accelerated method [Member] \| Merchant Processing Contracts [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Life	7 years
Accelerated method [Member] \| Core Deposit Benefits [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Life	5 years
Accelerated method [Member] \| Trust Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Life	7 years
Accelerated method [Member] \| Other Identified Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated Life	4 years

Intangible Assets - Aggregate A

Intangible Assets - Aggregate Amortization Expense (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	$ 168	$ 161	$ 175
Merchant Processing Contracts [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	45	24	24
Core Deposit Benefits [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	22	26	30
Trust Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	10	11	14
Other Identified Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	$ 91	$ 100	$ 107

Intangible Assets - Estimated A

Intangible Assets - Estimated Amortization Expense (Detail) $ in Millions	Dec. 31, 2019USD ($)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2020	$ 155
2021	130
2022	109
2023	76
2024	$ 60

Intangible Assets - Changes in

Intangible Assets - Changes in Carrying Value of Goodwill (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Goodwill [Line Items]
Goodwill, Beginning Balance	$ 9,369	$ 9,434	$ 9,344
Goodwill acquired	285	105	62
Disposal		(155)
Foreign exchange translation and other	1	(15)	28
Goodwill, Ending Balance	9,655	9,369	9,434
Corporate and Commercial Banking [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	1,647	1,647	1,647
Goodwill, Ending Balance	1,647	1,647	1,647
Consumer and Business Banking [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	3,475	3,681	3,681
Disposal		(155)
Foreign exchange translation and other		(51)
Goodwill, Ending Balance	3,475	3,475	3,681
Wealth Management and Investment Services [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	1,618	1,569	1,566
Foreign exchange translation and other	(1)	49	3
Goodwill, Ending Balance	1,617	1,618	1,569
Payment Services [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	2,629	2,537	2,450
Goodwill acquired	285	105	62
Foreign exchange translation and other	2	(13)	25
Goodwill, Ending Balance	$ 2,916	$ 2,629	$ 2,537

Deposits - Composition of Depos

Deposits - Composition of Deposits (Detail) - USD ($) $ in Millions		Dec. 31, 2019	Dec. 31, 2018
Banking and Thrift [Abstract]
Noninterest-bearing deposits		$ 75,590	$ 81,811
Interest-bearing deposits
Interest checking		75,949	73,994
Money market savings		120,082	100,396
Savings accounts		47,401	44,720
Time deposits		42,894	44,554
Total interest-bearing deposits	[1]	286,326	263,664
Total deposits		$ 361,916	$ 345,475

[1]	lncludes time deposits greater than $250,000 balances of $7.8 billion and $15.3 billion at December 31, 2019 and 2018, respectively.

Deposits - Maturities of Time D

Deposits - Maturities of Time Deposits Outstanding (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Banking and Thrift [Abstract]
2020	$ 37,731
2021	2,700
2022	1,183
2023	673
2024	602
Thereafter	5
Total	$ 42,894	$ 44,554

Short-Term Borrowings - Summary

Short-Term Borrowings - Summary of Short-Term Borrowings (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Short-term Debt [Line Items]
Short-term borrowings	$ 23,723	$ 14,139	$ 16,651
Short-term borrowings, interest rate, at year end	1.62%	1.92%	1.31%
Short-term borrowings, average for the year	$ 18,137	$ 21,790	$ 15,022
Short-term borrowings, interest rate, average for the year	2.04%	1.78%	1.00%
Federal Funds Purchased [Member]
Short-term Debt [Line Items]
Short-term borrowings	$ 828	$ 458	$ 252
Short-term borrowings, interest rate, at year end	1.45%	2.05%	0.77%
Short-term borrowings, average for the year	$ 1,457	$ 1,070	$ 528
Short-term borrowings, interest rate, average for the year	1.94%	1.70%	0.86%
Short-term borrowings, maximum month end balance	$ 3,629	$ 4,532	$ 600
Securities Sold under Agreements to Repurchase [Member]
Short-term Debt [Line Items]
Short-term borrowings	$ 1,165	$ 2,582	$ 803
Short-term borrowings, interest rate, at year end	1.41%	2.20%	0.61%
Short-term borrowings, average for the year	$ 1,770	$ 2,279	$ 917
Short-term borrowings, interest rate, average for the year	2.00%	1.87%	0.44%
Short-term borrowings, maximum month end balance	$ 2,755	$ 3,225	$ 927
Commercial Paper [Member]
Short-term Debt [Line Items]
Short-term borrowings	$ 7,576	$ 6,940	$ 8,303
Short-term borrowings, interest rate, at year end	1.07%	1.35%	0.68%
Short-term borrowings, average for the year	$ 8,186	$ 6,929	$ 8,236
Short-term borrowings, interest rate, average for the year	1.45%	0.94%	0.49%
Short-term borrowings, maximum month end balance	$ 9,431	$ 7,846	$ 9,950
Other Short-Term Borrowings [Member]
Short-term Debt [Line Items]
Short-term borrowings	$ 14,154	$ 4,159	$ 7,293
Short-term borrowings, interest rate, at year end	1.94%	2.68%	2.13%
Short-term borrowings, average for the year	$ 6,724	$ 11,512	$ 5,341
Short-term borrowings, interest rate, average for the year	2.78%	2.27%	1.90%
Short-term borrowings, maximum month end balance	$ 14,154	$ 16,588	$ 7,293

Short-Term Borrowings - Summa_2

Short-Term Borrowings - Summary of Short-Term Borrowings (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Short-term Debt [Abstract]
Federal statutory rate	21.00%	21.00%	35.00%

Long-Term Debt - Summary of Lon

Long-Term Debt - Summary of Long-term Debt (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Long-term debt	$ 40,167	$ 41,340
Parent Company [Member]
Debt Instrument [Line Items]
Long-term debt	18,602	16,291
Parent Company [Member] \| Other Debt Issuance Fees and Unrealized Gains and Losses and Deferred Amounts Relating to Derivative Instruments [Member]
Debt Instrument [Line Items]
Long-term debt	33	(53)
Subsidiaries [Member]
Debt Instrument [Line Items]
Long-term debt	21,565	25,049
Subsidiaries [Member] \| Other Consolidated Community Development and Tax-Advantaged Investment Vies, Capitalized Lease Obligations, Debt Issuance Fees, and Unrealized Gains and Losses and Deferred Amounts Relating to Derivative Instruments [Member]
Debt Instrument [Line Items]
Long-term debt	$ 848	1,006
Fixed Rate [Member] \| Parent Company [Member] \| Subordinated Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.95%
Debt Instrument Maturity Year, End	Dec. 31, 2022
Long-term debt	$ 1,300	1,300
Fixed Rate [Member] \| Parent Company [Member] \| Subordinated Debt One [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.60%
Debt Instrument Maturity Year, End	Dec. 31, 2024
Long-term debt	$ 1,000	1,000
Fixed Rate [Member] \| Parent Company [Member] \| Subordinated Notes Two [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	7.50%
Debt Instrument Maturity Year, End	Dec. 31, 2026
Long-term debt	$ 199	199
Fixed Rate [Member] \| Parent Company [Member] \| Subordinated Notes Three [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.10%
Debt Instrument Maturity Year, End	Dec. 31, 2026
Long-term debt	$ 1,000	1,000
Fixed Rate [Member] \| Parent Company [Member] \| Medium-term Notes [Member]
Debt Instrument [Line Items]
Debt Instrument Maturity Year, start	Jan. 1, 2021
Debt Instrument Maturity Year, End	Dec. 31, 2028
Long-term debt	$ 13,820	12,345
Fixed Rate [Member] \| Parent Company [Member] \| Medium-term Notes [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	0.85%
Fixed Rate [Member] \| Parent Company [Member] \| Medium-term Notes [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.125%
Fixed Rate [Member] \| Parent Company [Member] \| Subordinated Debt Four [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.00%
Debt Instrument Maturity Year, End	Dec. 31, 2029
Long-term debt	$ 1,000
Fixed Rate [Member] \| Subsidiaries [Member] \| Federal Home Loan Bank Advances [Member]
Debt Instrument [Line Items]
Debt Instrument Maturity Year, start	Jan. 1, 2020
Debt Instrument Maturity Year, End	Dec. 31, 2026
Long-term debt	$ 1,106	307
Fixed Rate [Member] \| Subsidiaries [Member] \| Federal Home Loan Bank Advances [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	1.25%
Fixed Rate [Member] \| Subsidiaries [Member] \| Federal Home Loan Bank Advances [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	8.25%
Fixed Rate [Member] \| Subsidiaries [Member] \| Bank Notes [Member]
Debt Instrument [Line Items]
Debt Instrument Maturity Year, start	Jan. 1, 2020
Debt Instrument Maturity Year, End	Dec. 31, 2025
Long-term debt	$ 9,550	11,600
Fixed Rate [Member] \| Subsidiaries [Member] \| Bank Notes [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	1.95%
Fixed Rate [Member] \| Subsidiaries [Member] \| Bank Notes [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.45%
Floating Rate [Member] \| Parent Company [Member] \| Medium-term Notes [Member]
Debt Instrument [Line Items]
Debt Instrument Maturity Year, End	Dec. 31, 2022
Long-term debt	$ 250	500
Floating Rate [Member] \| Parent Company [Member] \| Medium-term Notes [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.576%
Floating Rate [Member] \| Subsidiaries [Member] \| Federal Home Loan Bank Advances [Member]
Debt Instrument [Line Items]
Debt Instrument Maturity Year, start	Jan. 1, 2022
Debt Instrument Maturity Year, End	Dec. 31, 2026
Long-term debt	$ 3,272	4,272
Floating Rate [Member] \| Subsidiaries [Member] \| Federal Home Loan Bank Advances [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.165%
Floating Rate [Member] \| Subsidiaries [Member] \| Federal Home Loan Bank Advances [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.461%
Floating Rate [Member] \| Subsidiaries [Member] \| Bank Notes [Member]
Debt Instrument [Line Items]
Debt Instrument Maturity Year, start	Jan. 1, 2020
Debt Instrument Maturity Year, End	Dec. 31, 2059
Long-term debt	$ 6,789	$ 7,864
Floating Rate [Member] \| Subsidiaries [Member] \| Bank Notes [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	0.60%
Floating Rate [Member] \| Subsidiaries [Member] \| Bank Notes [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.35%

Long-Term Debt - Summary of L_2

Long-Term Debt - Summary of Long-term Debt (Parenthetical) (Detail)	Dec. 31, 2019
Medium-term Notes [Member]
Debt Instrument [Line Items]
Weighted-average interest rate	2.87%
Federal Home Loan Bank Advances [Member]
Debt Instrument [Line Items]
Weighted-average interest rate	2.42%
Bank Notes [Member]
Debt Instrument [Line Items]
Weighted-average interest rate	2.54%

Long-Term Debt - Additional Inf

Long-Term Debt - Additional Information (Detail) - USD ($) $ in Billions	Dec. 31, 2019	Dec. 31, 2018
Federal Home Loan Bank and Federal Reserve Bank [Member]
Debt Instrument [Line Items]
Unused Borrowing Capacity under Federal Home Loan Bank and Federal Reserve Bank	$ 97.4	$ 98.8

Long-Term Debt - Maturities of

Long-Term Debt - Maturities of Long-term Debt Outstanding (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
2020	$ 3,772
2021	9,430
2022	6,298
2023	2,799
2024	5,663
Thereafter	12,205
Total	40,167	$ 41,340
Parent Company [Member]
Debt Instrument [Line Items]
2021	2,696
2022	3,790
2024	5,657
Thereafter	6,459
Total	$ 18,602	$ 16,291

Shareholders' Equity - Addition

Shareholders' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Billions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2006	Dec. 31, 2019
Class of Stock [Line Items]
Number of preferred stock shares authorized	50,000,000									50,000,000
Number of common stock shares authorized	4,000,000,000									4,000,000,000
Number of common stock shares outstanding	1,600,000,000									1,500,000,000
Number of common stock shares reserved for future issuance										45,000,000
Remaining authorized share repurchase amount										$ 2.4
Preferred stock outstanding	209,510									209,510
Series H [Member]
Class of Stock [Line Items]
Preferred Stock, Shares Issued					20,000
Liquidation preference per share					$ 25,000
Preferred stock dividend rate fixed percentage					5.15%
Preferred stock outstanding	20,000									20,000
Series F [Member]
Class of Stock [Line Items]
Preferred Stock, Shares Issued						44,000
Liquidation preference per share						$ 25,000
Preferred stock dividend rate fixed percentage						6.50%
Redemption period of preferred stock						90 days
Preferred stock redemption date						Jan. 15, 2022
Preferred stock dividend rate variable percentage						4.468%
Preferred stock outstanding	44,000									44,000
Series K Preferred Stock [Member]
Class of Stock [Line Items]
Preferred Stock, Shares Issued	23,000
Liquidation preference per share	$ 25,000
Preferred stock dividend rate fixed percentage	5.50%
Redemption period of preferred stock	90 days
Preferred stock redemption date	Oct. 15, 2023
Preferred stock outstanding	23,000									23,000
Series A [Member]
Class of Stock [Line Items]
Preferred Stock, Shares Issued							6,764	5,746
Liquidation preference per share							$ 100,000	$ 100,000
Preferred stock dividend rate fixed percentage							3.50%	3.50%
Preferred stock dividend rate variable percentage							1.02%	1.02%
Preferred stock outstanding	12,510									12,510
Series A [Member] \| Noncontrolling Interests [Member]
Class of Stock [Line Items]
Liquidation preference per share									$ 100,000
Preferred stock dividend rate variable percentage									1.147%
Minority interest preferred stock, shares issued									5,000
Number of stock repurchased during period			500
Preferred stock outstanding										4,500
Series B [Member]
Class of Stock [Line Items]
Preferred Stock, Shares Issued									40,000
Liquidation preference per share									$ 25,000
Preferred stock dividend rate fixed percentage									3.50%
Preferred stock dividend rate variable percentage									0.60%
Preferred stock outstanding	40,000									40,000
Series I [Member]
Class of Stock [Line Items]
Preferred Stock, Shares Issued				30,000
Liquidation preference per share				$ 25,000
Preferred stock dividend rate fixed percentage				5.125%
Redemption period of preferred stock				90 days
Preferred stock redemption date				Jan. 15, 2021
Preferred stock dividend rate variable percentage				3.486%
Preferred stock outstanding	30,000									30,000
Series J [Member]
Class of Stock [Line Items]
Preferred Stock, Shares Issued		40,000
Liquidation preference per share		$ 25,000
Preferred stock dividend rate fixed percentage		5.30%
Redemption period of preferred stock		90 days
Preferred stock redemption date		Apr. 15, 2027
Preferred stock dividend rate variable percentage		2.914%
Preferred stock outstanding	40,000									40,000

Shareholders' Equity - Number o

Shareholders' Equity - Number of Shares Issued and Outstanding and Carrying Amount of Preferred Stock (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Class of Stock [Line Items]
Shares Issued and Outstanding	209,510	209,510
Liquidation Preference	$ 6,176	$ 6,176
Discount	192	192
Carrying Amount	$ 5,984	$ 5,984
Series A [Member]
Class of Stock [Line Items]
Shares Issued and Outstanding	12,510	12,510
Liquidation Preference	$ 1,251	$ 1,251
Discount	145	145
Carrying Amount	$ 1,106	$ 1,106
Series B [Member]
Class of Stock [Line Items]
Shares Issued and Outstanding	40,000	40,000
Liquidation Preference	$ 1,000	$ 1,000
Carrying Amount	$ 1,000	$ 1,000
Series F [Member]
Class of Stock [Line Items]
Shares Issued and Outstanding	44,000	44,000
Liquidation Preference	$ 1,100	$ 1,100
Discount	12	12
Carrying Amount	$ 1,088	$ 1,088
Series H [Member]
Class of Stock [Line Items]
Shares Issued and Outstanding	20,000	20,000
Liquidation Preference	$ 500	$ 500
Discount	13	13
Carrying Amount	$ 487	$ 487
Series I [Member]
Class of Stock [Line Items]
Shares Issued and Outstanding	30,000	30,000
Liquidation Preference	$ 750	$ 750
Discount	5	5
Carrying Amount	$ 745	$ 745
Series J [Member]
Class of Stock [Line Items]
Shares Issued and Outstanding	40,000	40,000
Liquidation Preference	$ 1,000	$ 1,000
Discount	7	7
Carrying Amount	$ 993	$ 993
Series K [Member]
Class of Stock [Line Items]
Shares Issued and Outstanding	23,000	23,000
Liquidation Preference	$ 575	$ 575
Discount	10	10
Carrying Amount	$ 565	$ 565

Shareholders' Equity - Number_2

Shareholders' Equity - Number of Shares Issued and Outstanding and Carrying Amount of Preferred Stock (Parenthetical) (Detail) - $ / shares	Dec. 31, 2019	Dec. 31, 2018
Equity [Abstract]
Preferred stock, par value	$ 1	$ 1

Shareholders' Equity - Common S

Shareholders' Equity - Common Stock Repurchased (Detail) - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Equity [Abstract]
Common stock repurchased shares	81	54	49
Purchase of treasury stock	$ 4,515	$ 2,844	$ 2,622

Shareholders' Equity - Reconcil

Shareholders' Equity - Reconciliation of Transactions Affecting Accumulated Other Comprehensive Income (Loss) Included in Shareholders' Equity (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	$ (2,322)	$ (1,404)	$ (1,535)
Revaluation of tax related balances		(300)
Changes in unrealized gains and losses	1,693	(656)	178
Changes in unrealized gains and losses	(229)	39	(5)
Changes in unrealized gains and losses	(380)	(302)	(41)
Changes in unrealized gains and losses	1,084	(919)	132
Unrealized gains and losses on held-to-maturity investment securities transferred to available-for-sale	141
Foreign currency translation adjustment	26	3	(2)
Reclassification to earnings of realized gains and losses	20	93	77
Applicable income taxes	(322)	205	(76)
Balance at end of period	(1,373)	(2,322)	(1,404)
Foreign Currency Translation [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	(84)	(69)	(71)
Revaluation of tax related balances		(13)
Foreign currency translation adjustment	26	3	(2)
Applicable income taxes	(7)	(5)	4
Balance at end of period	(65)	(84)	(69)
Unrealized Gains (Losses) on Retirement Plans [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	(1,418)	(1,066)	(1,113)
Revaluation of tax related balances		(229)
Changes in unrealized gains and losses	(380)	(302)	(41)
Reclassification to earnings of realized gains and losses	89	137	117
Applicable income taxes	73	42	(29)
Balance at end of period	(1,636)	(1,418)	(1,066)
Unrealized Gains (Losses) on Derivative Hedges [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	112	71	55
Revaluation of tax related balances		15
Changes in unrealized gains and losses	(229)	39	(5)
Reclassification to earnings of realized gains and losses	11	(5)	30
Applicable income taxes	55	(8)	(9)
Balance at end of period	(51)	112	71
Unrealized Gains (Losses) on Investment Securities Transferred From Available For Sale to Held To Maturity [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	14	17	25
Revaluation of tax related balances		4
Unrealized gains and losses on held-to-maturity investment securities transferred to available-for-sale	(9)
Reclassification to earnings of realized gains and losses	(7)	(9)	(13)
Applicable income taxes	2	2	5
Balance at end of period		14	17
Unrealized Gains (Losses) on Investment Securities Available-For-Sale [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	(946)	(357)	(431)
Revaluation of tax related balances		(77)
Changes in unrealized gains and losses	1,693	(656)	178
Unrealized gains and losses on held-to-maturity investment securities transferred to available-for-sale	150
Reclassification to earnings of realized gains and losses	(73)	(30)	(57)
Applicable income taxes	(445)	174	(47)
Balance at end of period	$ 379	$ (946)	$ (357)

Shareholders' Equity - Impact t

Shareholders' Equity - Impact to Net Income for Items Reclassified out of Accumulated Other Comprehensive Income and into Earnings (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Realized gains (losses) on sale of investment securities	$ 73	$ 30	$ 57
Amortization of unrealized gains on securities transferred from available-for-sale to held-to-maturity, Interest income	17,494	16,173	14,346
Realized gains (losses) on derivative hedges	(4,442)	(3,254)	(1,966)
Actuarial gains (losses) and prior service cost (credit) amortization	(1,618)	(1,709)	(2,529)
Applicable income taxes	(1,648)	(1,554)	(1,264)
Net income	6,946	7,124	6,253
Reclassification Out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net income	(15)	(69)	(48)
Reclassification Out of Accumulated Other Comprehensive Income [Member] \| Unrealized Gains (Losses) on Investment Securities Available-For-Sale [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Realized gains (losses) on sale of investment securities	73	30	57
Applicable income taxes	(18)	(7)	(22)
Net income	55	23	35
Reclassification Out of Accumulated Other Comprehensive Income [Member] \| Unrealized Gains (Losses) on Investment Securities Transferred From Available For Sale to Held To Maturity [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amortization of unrealized gains on securities transferred from available-for-sale to held-to-maturity, Interest income	7	9	13
Applicable income taxes	(2)	(2)	(5)
Net income	5	7	8
Reclassification Out of Accumulated Other Comprehensive Income [Member] \| Unrealized Gains (Losses) on Derivative Hedges [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Realized gains (losses) on derivative hedges	(11)	5	(30)
Applicable income taxes	3	(2)	11
Net income	(8)	3	(19)
Reclassification Out of Accumulated Other Comprehensive Income [Member] \| Unrealized Gains (Losses) on Retirement Plans [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Actuarial gains (losses) and prior service cost (credit) amortization	(89)	(137)	(117)
Applicable income taxes	22	35	45
Net income	$ (67)	$ (102)	$ (72)

Shareholders' Equity - Componen

Shareholders' Equity - Components of Company's Regulatory Capital Requirements Under Banking Regulations (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Less intangible assets
Qualifying preferred stock	$ 5,984	$ 5,984
Bank Regulatory Capital Requirements
Common equity tier 1 capital as a percent of risk-weighted assets - Minimum capital ratio requirement	7.00%	6.375%
Tier 1 capital as a percent of risk-weighted assets - Minimum capital ratio requirement	8.50%	7.875%
Total risk-based capital as a percent of risk-weighted assets - Minimum capital ratio requirement	10.50%	9.875%
Tier 1 capital as a percent of adjusted quarterly average assets (leverage ratio) - Minimum capital ratio requirement	4.00%	4.00%
Tier 1 capital as a percent of total on- and off-balance sheet leverage exposure (total leverage exposure ratio) - Minimum capital ratio requirement	3.00%	3.00%
Common equity tier 1 capital as a percent of risk-weighted assets - Well capitalized ratio requirement	6.50%	6.50%
Tier 1 capital as a percent of risk-weighted assets - Well capitalized ratio requirement	8.00%	8.00%
Total risk-based capital as a percent of risk-weighted assets - Well capitalized ratio requirement	10.00%	10.00%
Tier 1 capital as a percent of adjusted quarterly average assets (leverage ratio) - Well capitalized ratio requirement	5.00%	5.00%
Tier 1 capital as a percent of total on- and off-balance sheet leverage exposure (total leverage exposure ratio) - Well capitalized ratio requirement	3.00%	3.00%
U.S. Bancorp [Member] \| Basel III Standardized Approach: [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common shareholders' equity	$ 45,869	$ 45,045
Less intangible assets
Goodwill (net of deferred tax liability)	(8,788)	(8,549)
Other disallowed intangible assets	(677)	(601)
Other	(691)	(1,171)
Total common equity tier 1 capital	35,713	34,724
Qualifying preferred stock	5,984	5,984
Noncontrolling interests eligible for tier 1 capital	28	36
Other	(4)	(3)
Total tier 1 capital	41,721	40,741
Eligible portion of allowance for credit losses	4,491	4,441
Subordinated debt and noncontrolling interests eligible for tier 2 capital	3,532	2,996
Total tier 2 capital	8,023	7,437
Total risk-based capital	49,744	48,178
Risk-weighted assets	$ 391,269	$ 381,661
Common equity tier 1 capital as a percent of risk-weighted assets	9.10%	9.10%
Tier 1 capital as a percent of risk-weighted assets	10.70%	10.70%
Total risk-based capital as a percent of risk-weighted assets	12.70%	12.60%
Tier 1 capital as a percent of adjusted quarterly average assets	8.80%	9.00%
U.S. Bancorp [Member] \| Basel III Advanced Approaches: [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common shareholders' equity		$ 45,045
Less intangible assets
Goodwill (net of deferred tax liability)		(8,549)
Other disallowed intangible assets		(601)
Other		(1,171)
Total common equity tier 1 capital		34,724
Qualifying preferred stock		5,984
Noncontrolling interests eligible for tier 1 capital		36
Other		(3)
Total tier 1 capital		40,741
Eligible portion of allowance for credit losses		1,399
Subordinated debt and noncontrolling interests eligible for tier 2 capital		2,996
Total tier 2 capital		4,395
Total risk-based capital		45,136
Risk-weighted assets		$ 295,002
Common equity tier 1 capital as a percent of risk-weighted assets		11.80%
Tier 1 capital as a percent of risk-weighted assets		13.80%
Total risk-based capital as a percent of risk-weighted assets		15.30%
Tier 1 capital as a percent of total on- and off-balance sheet leverage exposure	7.00%	7.20%
U.S. Bank National Association [Member] \| Basel III Standardized Approach: [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common shareholders' equity	$ 48,592	$ 47,728
Less intangible assets
Goodwill (net of deferred tax liability)	(8,806)	(8,566)
Other disallowed intangible assets	(710)	(732)
Other	38	(112)
Total common equity tier 1 capital	39,114	38,318
Noncontrolling interests eligible for tier 1 capital	28	36
Other	(4)	(3)
Total tier 1 capital	39,138	38,351
Eligible portion of allowance for credit losses	4,491	4,441
Subordinated debt and noncontrolling interests eligible for tier 2 capital	3,365	3,168
Total tier 2 capital	7,856	7,609
Total risk-based capital	46,994	45,960
Risk-weighted assets	$ 383,560	$ 374,299
Common equity tier 1 capital as a percent of risk-weighted assets	10.20%	10.20%
Tier 1 capital as a percent of risk-weighted assets	10.20%	10.20%
Total risk-based capital as a percent of risk-weighted assets	12.30%	12.30%
Tier 1 capital as a percent of adjusted quarterly average assets	8.40%	8.60%
U.S. Bank National Association [Member] \| Basel III Advanced Approaches: [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common shareholders' equity		$ 47,728
Less intangible assets
Goodwill (net of deferred tax liability)		(8,566)
Other disallowed intangible assets		(732)
Other		(112)
Total common equity tier 1 capital		38,318
Noncontrolling interests eligible for tier 1 capital		36
Other		(3)
Total tier 1 capital		38,351
Eligible portion of allowance for credit losses		1,364
Subordinated debt and noncontrolling interests eligible for tier 2 capital		3,168
Total tier 2 capital		4,532
Total risk-based capital		42,883
Risk-weighted assets		$ 287,897
Common equity tier 1 capital as a percent of risk-weighted assets		13.30%
Tier 1 capital as a percent of risk-weighted assets		13.30%
Total risk-based capital as a percent of risk-weighted assets		14.90%
Tier 1 capital as a percent of total on- and off-balance sheet leverage exposure	6.70%	6.90%

Shareholders' Equity - Compon_2

Shareholders' Equity - Components of Company's Regulatory Capital Requirements Under Banking Regulations (Detail) (Parenthetical)	Dec. 31, 2019	Dec. 31, 2018
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Capital conservation buffer ratio	2.50%	1.875%

Earnings Per Share - Components

Earnings Per Share - Components of Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019		Dec. 31, 2018		Dec. 31, 2017
Earnings Per Share [Abstract]
Net income attributable to U.S. Bancorp	$ 6,914		$ 7,096		$ 6,218
Preferred dividends	(302)	[1]	(282)	[2]	(267)	[3]
Impact of preferred stock redemption					(10)
Earnings allocated to participating stock awards	(29)		(30)		(28)
Net income applicable to U.S. Bancorp common shareholders	$ 6,583		$ 6,784		$ 5,913
Average common shares outstanding	1,581		1,634		1,677
Net effect of the exercise and assumed purchase of stock awards	2		4		6
Average diluted common shares outstanding	1,583		1,638		1,683
Earnings per common share	$ 4.16		$ 4.15		$ 3.53
Diluted earnings per common share	$ 4.16		$ 4.14		$ 3.51

[1]	Reflects dividends declared per share on the Company’s Series A, Series B, Series F, Series H, Series I, Series J and Series K Non-Cumulative Perpetual Preferred Stock of $3,654.95, $887.15, $1,625.00, $1,287.52, $1,281.25, $1,325.00 and $1,375.00, respectively.
[2]	Reflects dividends declared per share on the Company’s Series A, Series B, Series F, Series H, Series I, Series J and Series K Non-Cumulative Perpetual Preferred Stock of $3,548.61, $887.15, $1,625.00, $1,287.52, $1,281.25, $1,325.00 and $576.74, respectively.
[3]	Reflects dividends declared per share on the Company’s Series A, Series B, Series F, Series G, Series H, Series I and Series J Non-Cumulative Perpetual Preferred Stock of $3,548.61, $887.15, $1,625.00, $375.00, $1,287.52, $1,281.25 and $890.69, respectively.

Earnings Per Share - Additional

Earnings Per Share - Additional Information (Detail) - shares shares in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Stock Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Options outstanding of common shares	1	1	1

Employee Benefits - Additional

Employee Benefits - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Defined Benefit Plan Disclosure [Line Items]
Qualified employees maximum contribution to defined contribution savings plan allowed in percentage of annual compensation	75.00%
Company contribution, percentage company contribution matches of the employee's percentage contribution matched	100.00%
Employee retirement savings plan matching expenses	$ 179	$ 171	$ 156
Vesting service period for defined benefit pension plan	3 years
Global Equities [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset allocation for the company's qualified pension plan	30.00%
Domestic Mid-Small Cap Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset allocation for the company's qualified pension plan	5.00%
Emerging Markets Equities [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset allocation for the company's qualified pension plan	5.00%
Real Estate Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset allocation for the company's qualified pension plan	10.00%
Long-duration bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset allocation for the company's qualified pension plan	35.00%
Hedge Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset allocation for the company's qualified pension plan	5.00%
Private Equity Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset allocation for the company's qualified pension plan	10.00%
Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Company contributions to qualified pension and postretirement welfare plan	$ 26	24
Plan assets measured at fair value	5,838	4,936	5,482
Pension Plans [Member] \| Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Company contributions to qualified pension and postretirement welfare plan	0	0
Company contributions to pension and postretirement welfare plan in next fiscal year	125
Pension Plans [Member] \| Nonqualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Company contributions to pension and postretirement welfare plan in next fiscal year	25
Pension Plans [Member] \| Real Estate Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value		109
Pension Plans [Member] \| Hedge Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	283	290
Pension Plans [Member] \| Private Equity Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	304	225
Postretirement Welfare Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Company contributions to qualified pension and postretirement welfare plan	4	5
Company contributions to pension and postretirement welfare plan in next fiscal year	4
Plan assets measured at fair value	84	81	$ 87
Management Arrangement With Related Party [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	$ 57	$ 52

Employee Benefits - Summary of

Employee Benefits - Summary of Changes in Projected Benefit Obligation, Plan Assets, Funded Status, Amounts Recognized in Consolidated Balance Sheet and Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Pension Plans [Member]
Change In Projected Benefit Obligation
Benefit obligation at beginning of measurement period	$ 5,507	$ 5,720
Service cost	192	208	$ 187
Interest cost	249	224	220
Actuarial loss (gain)	1,100	(440)
Lump sum settlements	(56)	(50)
Benefit payments	(163)	(155)
Benefit obligation at end of measurement period	6,829	5,507	5,720
Change In Fair Value Of Plan Assets
Balance at beginning of period	4,936	5,482
Actual return on plan assets	1,095	(365)
Employer contributions	26	24
Lump sum settlements	(56)	(50)
Benefit payments	(163)	(155)
Balance at end of period	5,838	4,936	5,482
Funded (Unfunded) Status	(991)	(571)
Current benefit liability	(25)	(23)
Noncurrent benefit liability	(966)	(548)
Recognized amount	(991)	(571)
Net actuarial gain (loss)	(2,271)	(1,981)
Recognized amount	(2,271)	(1,981)
Postretirement Welfare Plan [Member]
Change In Projected Benefit Obligation
Benefit obligation at beginning of measurement period	54	68
Interest cost	2	2	2
Participants' contributions	7	8
Actuarial loss (gain)	(4)	(7)
Benefit payments	(13)	(18)
Federal subsidy on benefits paid	1	1
Benefit obligation at end of measurement period	47	54	68
Change In Fair Value Of Plan Assets
Balance at beginning of period	81	87
Actual return on plan assets	6
Employer contributions	4	5
Participants' contributions	6	7
Benefit payments	(13)	(18)
Balance at end of period	84	81	$ 87
Funded (Unfunded) Status	37	27
Noncurrent benefit asset	37	27
Recognized amount	37	27
Net actuarial gain (loss)	68	66
Net prior service credit (cost)	14	18
Recognized amount	$ 82	$ 84

Employee Benefits - Summary o_2

Employee Benefits - Summary of Changes in Projected Benefit Obligation, Plan Assets, Funded Status, Amounts Recognized in Consolidated Balance Sheet and Accumulated Other Comprehensive Income (Loss) (Parenthetical) (Detail) - USD ($) $ in Billions	Dec. 31, 2019	Dec. 31, 2018
Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation for all pension plans	$ 6.2	$ 5

Employee Benefits - Pension Pla

Employee Benefits - Pension Plans with Benefit Obligations in Excess of Plan Assets (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Pension Plans with Projected Benefit Obligations in Excess of Plan Assets
Projected benefit obligation	$ 6,829	$ 5,507
Fair value of plan assets	5,838	4,936
Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets
Accumulated benefit obligation	$ 553	$ 467

Employee Benefits - Components

Employee Benefits - Components of Net Periodic Benefit Cost and Other Amounts Recognized in Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Pension Plans [Member]
Components Of Net Periodic Benefit Cost
Service cost	$ 192	$ 208	$ 187
Interest cost	249	224	220
Expected return on plan assets	(383)	(379)	(284)
Prior service cost (credit) and transition obligation (asset) amortization			(2)
Actuarial loss (gain) amortization	98	146	127
Net periodic benefit cost	156	199	248
Net actuarial gain (loss) arising during the year	(388)	(305)	(48)
Net actuarial loss (gain) amortized during the year	98	146	127
Net prior service cost (credit) and transition obligation (asset) amortized during the year			(2)
Total recognized in other comprehensive income (loss)	(290)	(159)	77
Total recognized in net periodic benefit cost and other comprehensive income (loss)	(446)	(358)	(171)
Postretirement Welfare Plan [Member]
Components Of Net Periodic Benefit Cost
Interest cost	2	2	2
Expected return on plan assets	(3)	(3)	(3)
Prior service cost (credit) and transition obligation (asset) amortization	(3)	(3)	(3)
Actuarial loss (gain) amortization	(6)	(6)	(5)
Net periodic benefit cost	(10)	(10)	(9)
Net actuarial gain (loss) arising during the year	7	3	7
Net actuarial loss (gain) amortized during the year	(6)	(6)	(5)
Net prior service cost (credit) and transition obligation (asset) amortized during the year	(3)	(3)	(3)
Total recognized in other comprehensive income (loss)	(2)	(6)	(1)
Total recognized in net periodic benefit cost and other comprehensive income (loss)	$ 8	$ 4	$ 8

Employee Benefits - Weighted Av

Employee Benefits - Weighted Average Assumptions to Determine Projected Benefit Obligations (Detail)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Projected Benefit Obligation Assumptions [Member] \| Prior to age 65 [Member]
Health care cost trend rate
Health care cost trend rate	6.25%	6.50%
Projected Benefit Obligation Assumptions [Member] \| After age 65 [Member]
Health care cost trend rate
Health care cost trend rate	6.25%	10.00%
Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.40%	4.45%
Cash balance interest crediting rate	3.00%	3.00%
Rate of compensation increase	3.56%	3.52%
Postretirement Welfare Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	2.80%	4.05%

Employee Benefits - Weighted _2

Employee Benefits - Weighted Average Assumptions to Determine Projected Benefit Obligations (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Projected Benefit Obligation Assumptions [Member] \| Prior to age 65 [Member]
Defined Benefit Plan Disclosure [Line Items]
Assumed rate decrease	5.00%	5.00%
Health care cost trend rate to decrease Period	2025	2025
Projected Benefit Obligation Assumptions [Member] \| After age 65 [Member]
Defined Benefit Plan Disclosure [Line Items]
Assumed rate decrease	5.00%	5.00%
Health care cost trend rate to decrease Period	2025	2025
Postretirement Welfare Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Assumed plan duration	6 years 1 month 6 days	5 years 10 months 24 days
Qualified Plan [Member] \| Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Assumed plan duration	15 years 9 months 18 days	14 years 8 months 12 days
Nonqualified Plan [Member] \| Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Assumed plan duration	12 years 3 months 18 days	11 years 6 months

Employee Benefits - Weighted _3

Employee Benefits - Weighted Average Assumptions Used to Determine Net Periodic Benefit Cost (Detail)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.45%	3.84%	4.27%
Cash balance interest crediting rate	3.00%	3.00%	3.00%
Expected return on plan assets	7.25%	7.25%	7.25%
Rate of compensation increase	3.52%	3.56%	3.58%
Postretirement Welfare Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	4.05%	3.34%	3.57%
Expected return on plan assets	3.50%	3.50%	3.50%
Net Periodic Benefit Cost Assumptions [Member] \| Prior to age 65 [Member]
Health care cost trend rate
Health care cost trend rate	6.50%	6.75%	7.00%
Net Periodic Benefit Cost Assumptions [Member] \| After age 65 [Member]
Health care cost trend rate
Health care cost trend rate	10.00%	6.75%	7.00%

Employee Benefits - Weighted _4

Employee Benefits - Weighted Average Assumptions Used to Determine Net Periodic Benefit Cost (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Net Periodic Benefit Cost Assumptions [Member] \| Prior to age 65 [Member]
Defined Benefit Plan Disclosure [Line Items]
Assumed rate decrease	5.00%	5.00%	5.00%
Health care cost trend rate to decrease Period	2025	2025	2025
Net Periodic Benefit Cost Assumptions [Member] \| After age 65 [Member]
Defined Benefit Plan Disclosure [Line Items]
Assumed rate decrease	5.00%	5.00%	5.00%
Health care cost trend rate to decrease Period	2025	2025	2025
Net Periodic Benefit Cost Assumptions [Member] \| Postretirement Welfare Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Assumed plan duration	5 years 10 months 24 days	6 years 1 month 6 days
Net Periodic Benefit Cost Assumptions [Member] \| Qualified Plan [Member] \| Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Assumed plan duration	14 years 8 months 12 days	15 years 9 months 18 days
Net Periodic Benefit Cost Assumptions [Member] \| Nonqualified Plan [Member] \| Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Assumed plan duration	11 years 6 months	12 years 3 months 18 days

Employee Benefits - Summary o_3

Employee Benefits - Summary of Plan Investment Assets Measured at Fair Value (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Level 3 [Member] \| Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	$ 3	$ 3	$ 2	$ 1
Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	5,838	4,936	5,482
Plan assets measured at fair value, excluding assets not classified in fair hierarchy	2,301	2,109
Pension Plans [Member] \| Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	58	54
Pension Plans [Member] \| Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	1,800	1,535
Pension Plans [Member] \| Real Estate Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value		109
Pension Plans [Member] \| Debt Securities Mutual Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	304	295
Pension Plans [Member] \| Emerging Markets Equity Mutual Fund Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	136	113
Pension Plans [Member] \| Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	3	3
Pension Plans [Member] \| Collective Investment Funds Domestic Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	1,328	1,183
Pension Plans [Member] \| Collective Investment Fund Mid-Small Cap Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	323	340
Pension Plans [Member] \| Collective Investment Funds International Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	752	643
Pension Plans [Member] \| Real estate securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	547	146
Pension Plans [Member] \| Hedge Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	283	290
Pension Plans [Member] \| Private Equity Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	304	225
Pension Plans [Member] \| Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value, excluding assets not classified in fair hierarchy	785	794
Pension Plans [Member] \| Level 1 [Member] \| Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	58	54
Pension Plans [Member] \| Level 1 [Member] \| Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	727	631
Pension Plans [Member] \| Level 1 [Member] \| Real Estate Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value		109
Pension Plans [Member] \| Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value, excluding assets not classified in fair hierarchy	1,513	1,312
Pension Plans [Member] \| Level 2 [Member] \| Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	1,073	904
Pension Plans [Member] \| Level 2 [Member] \| Debt Securities Mutual Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	304	295
Pension Plans [Member] \| Level 2 [Member] \| Emerging Markets Equity Mutual Fund Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	136	113
Pension Plans [Member] \| Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value, excluding assets not classified in fair hierarchy	3	3
Pension Plans [Member] \| Level 3 [Member] \| Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	3	3
Postretirement Welfare Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	84	81	$ 87
Postretirement Welfare Plan [Member] \| Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	84	81
Plan assets measured at fair value, excluding assets not classified in fair hierarchy	40	42
Postretirement Welfare Plan [Member] \| Level 1 [Member] \| Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	40	42
Postretirement Welfare Plan [Member] \| Level 1 [Member] \| Collective Investment Funds Domestic Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	27	24
Postretirement Welfare Plan [Member] \| Level 1 [Member] \| Collective Investment Funds International Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	$ 17	$ 15

Employee Benefits - Summary o_4

Employee Benefits - Summary of Plan Investment Assets Measured at Fair Value (Parenthetical) (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Real Estate Equity Securities [Member] \| Level 1 [Member] \| Domestic Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value		$ 56
Real Estate Equity Securities [Member] \| Level 1 [Member] \| International Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value		53
Collective Investment Fund Mid-Small Cap Equity Securities [Member] \| Domestic Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets measured at fair value	$ 323	$ 340

Employee Benefits - Summarizes

Employee Benefits - Summarizes Changes for Qualified Pension Plan Investment Assets Measured at Fair Value Using Significant Unobservable Inputs (Level 3) (Detail) - Other [Member] - Level 3 [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Defined Benefit Plan Disclosure [Line Items]
Balance at beginning of period	$ 3	$ 2	$ 1
Purchases, sales, and settlements, net		1	1
Balance at end of period	$ 3	$ 3	$ 2

Employee Benefits - Expected Fu

Employee Benefits - Expected Future Benefit Payments (Detail) $ in Millions	Dec. 31, 2019USD ($)
Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
2020	$ 233
2021	254
2022	267
2023	294
2024	306
2025-2029	1,811
Postretirement Welfare Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
2020	7
2021	6
2022	6
2023	6
2024	5
2025-2029	19
Medicare Part D Subsidy [Member]
Defined Benefit Plan Disclosure [Line Items]
2020	1
2021	1
2022	1
2023	1
2024	1
2025-2029	$ 2

Stock-Based Compensation - Addi

Stock-Based Compensation - Additional Information (Detail) - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Shares available for grant under Company's stock incentive plan (subject to adjustment for forfeitures)	32
Fair value of shares vested	$ 175	$ 182	$ 180
Stock-based compensation expense	178	174	163
Stock-based compensation expense on an after tax basis	133	$ 130	$ 101
Unrecognized compensation cost related to nonvested share-based arrangements granted under plans	$ 143
Unrecognized compensation cost recognized over a weighted-average period as compensation expense	1 year 8 months 12 days
Minimum [Member]
Date of grant exercisable period	10 years
Stock and unit awards vesting period	3 years
Maximum [Member]
Stock and unit awards vesting period	5 years

Stock-Based Compensation - Summ

Stock-Based Compensation - Summary of Stock Options Outstanding and Exercised Under Prior and Existing Stock Incentive Plans (Detail) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Stock Options/Shares Outstanding, Weighted-Average Exercise Price, and Additional Disclosures [Abstract]
Stock Options/Shares, Outstanding at Beginning of the Period	9,115,010	12,668,467	17,059,241
Stock Options/Shares, Granted			1,066,188
Stock Options/Shares, Exercised	(3,333,467)	(3,443,494)	(5,389,741)
Stock Options/Shares, Cancelled	(63,287)	(109,963)	(67,221)
Stock Options/Shares, Outstanding at End of the Period	5,718,256	9,115,010	12,668,467
Stock Options/Shares, Exercisable at End of Period	4,869,805	7,372,036	9,647,937
Weighted-Average Exercise Price, Outstanding at Beginning of the Period	$ 34.52	$ 32.15	$ 29.95
Weighted-Average Exercise Price, Granted			54.97
Weighted-Average Exercise Price, Exercised	26.36	25.41	29.58
Weighted-Average Exercise Price, Cancelled	36.74	46.72	43.31
Weighted-Average Exercise Price, Outstanding at End of the Period	39.25	34.52	32.15
Weighted-Average Exercise Price, Exercisable at End of Period	$ 37.67	$ 31.61	$ 27.87
Weighted-Average Remaining Contractual Term, Outstanding at the End of the Period	4 years 4 months 24 days	4 years 3 months 18 days	4 years 6 months
Weighted-Average Remaining Contractual Term, Exercisable at End of Period	4 years	3 years 6 months	3 years 3 months 18 days
Aggregate Intrinsic Value, Outstanding at the End of the Period	$ 115	$ 102	$ 272
Aggregate Intrinsic Value, Exercisable at End of Period	$ 105	$ 104	$ 248

Stock-Based Compensation - Weig

Stock-Based Compensation - Weighted-Average Estimated Fair Value of Stock Options Granted and Assumptions Utilized by Company for Newly Issued Grants (Detail)	12 Months Ended
	Dec. 31, 2017$ / shares
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Estimated fair value	$ 14.66
Risk-free interest rates	2.00%
Dividend yield	2.60%
Stock volatility factor	0.35%
Expected life of options (in years)	5 years 6 months

Stock-Based Compensation - Su_2

Stock-Based Compensation - Summary of Certain Stock Option Activity (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Fair value of options vested	$ 10	$ 14	$ 13
Intrinsic value of options exercised	95	97	127
Cash received from options exercised	88	87	159
Tax benefit realized from options exercised	$ 24	$ 24	$ 49

Stock-Based Compensation - Stoc

Stock-Based Compensation - Stock Options Outstanding Additional Information (Detail)	12 Months Ended
	Dec. 31, 2019$ / sharesshares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Outstanding Options, Shares \| shares	5,718,256
Outstanding Options, Weighted-Average Remaining Contractual Life (Years)	4 years 4 months 24 days
Outstanding Options, Weighted-Average Exercise Price	$ 39.25
Exercisable Options, Shares \| shares	4,869,805
Exercisable Options, Weighted-Average Exercise Price	$ 37.67
Exercise Price Range $23.36-$25.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Lower range limit of Exercise Prices	23.36
Upper range limit of Exercise Prices	$ 25
Outstanding Options, Shares \| shares	236,661
Outstanding Options, Weighted-Average Remaining Contractual Life (Years)	2 months 12 days
Outstanding Options, Weighted-Average Exercise Price	$ 23.82
Exercisable Options, Shares \| shares	236,661
Exercisable Options, Weighted-Average Exercise Price	$ 23.82
Exercise Price Range $25.01-$30.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Lower range limit of Exercise Prices	25.01
Upper range limit of Exercise Prices	$ 30
Outstanding Options, Shares \| shares	1,277,726
Outstanding Options, Weighted-Average Remaining Contractual Life (Years)	1 year 9 months 18 days
Outstanding Options, Weighted-Average Exercise Price	$ 28.65
Exercisable Options, Shares \| shares	1,277,726
Exercisable Options, Weighted-Average Exercise Price	$ 28.65
Exercise Price Range $30.01-$35.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Lower range limit of Exercise Prices	30.01
Upper range limit of Exercise Prices	$ 35
Outstanding Options, Shares \| shares	537,881
Outstanding Options, Weighted-Average Remaining Contractual Life (Years)	3 years 1 month 6 days
Outstanding Options, Weighted-Average Exercise Price	$ 33.98
Exercisable Options, Shares \| shares	537,881
Exercisable Options, Weighted-Average Exercise Price	$ 33.98
Exercise Price Range $35.01-$40.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Lower range limit of Exercise Prices	35.01
Upper range limit of Exercise Prices	$ 40
Outstanding Options, Shares \| shares	1,251,397
Outstanding Options, Weighted-Average Remaining Contractual Life (Years)	6 years 1 month 6 days
Outstanding Options, Weighted-Average Exercise Price	$ 39.49
Exercisable Options, Shares \| shares	885,968
Exercisable Options, Weighted-Average Exercise Price	$ 39.49
Exercise Price Range $40.01-$45.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Lower range limit of Exercise Prices	40.01
Upper range limit of Exercise Prices	$ 45
Outstanding Options, Shares \| shares	1,454,651
Outstanding Options, Weighted-Average Remaining Contractual Life (Years)	4 years 8 months 12 days
Outstanding Options, Weighted-Average Exercise Price	$ 42.42
Exercisable Options, Shares \| shares	1,454,068
Exercisable Options, Weighted-Average Exercise Price	$ 42.43
Exercise Price Range $45.01-$50.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Lower range limit of Exercise Prices	45.01
Upper range limit of Exercise Prices	50
Exercise Price Range $50.01-$55.01 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Lower range limit of Exercise Prices	50.01
Upper range limit of Exercise Prices	$ 55.01
Outstanding Options, Shares \| shares	959,940
Outstanding Options, Weighted-Average Remaining Contractual Life (Years)	7 years 1 month 6 days
Outstanding Options, Weighted-Average Exercise Price	$ 54.97
Exercisable Options, Shares \| shares	477,501
Exercisable Options, Weighted-Average Exercise Price	$ 54.97

Stock-Based Compensation - Su_3

Stock-Based Compensation - Summary of Company's Restricted Shares of Stock and Unit Awards (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number Of Shares And Weighted Average Grant Date Fair Value [Abstract]
Outstanding at beginning of period, shares	6,719,298	7,446,955	8,265,507
Granted, shares	3,519,474	3,213,023	2,850,927
Vested, shares	(3,270,778)	(3,373,323)	(3,295,376)
Cancelled, shares	(361,161)	(567,357)	(374,103)
Outstanding at end of period, shares	6,606,833	6,719,298	7,446,955
Outstanding at beginning of period, weighted-average grant-date fair value	$ 48.17	$ 44.49	$ 39.50
Granted, weighted-average grant-date fair value	50.45	55.03	54.45
Vested, weighted-average grant-date fair value	48.69	46.42	40.66
Cancelled, weighted-average grant-date fair value	50.55	49.07	43.91
Outstanding at end of period, weighted-average grant-date fair value	$ 48.99	$ 48.17	$ 44.49

Income Taxes - Components of In

Income Taxes - Components of Income Tax Expense (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Federal
Current	$ 1,162	$ 1,287	$ 2,086
Deferred	166	(148)	(1,180)
Federal income tax	1,328	1,139	906
State
Current	379	395	201
Deferred	(59)	20	157
State income tax	320	415	358
Applicable income taxes	$ 1,648	$ 1,554	$ 1,264

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Taxes Additional Information [Abstract]
Federal statutory rate	21.00%	21.00%	35.00%
Unrecognized tax positions that if recognized would impact the effective tax rate	$ 274	$ 273	$ 265
Interest recorded on unrecognized tax positions	7	$ (25)	$ 16
Unrecognized tax positions as a component of income taxes expense, accrued interest	35
Federal, state and foreign net operating loss carryforwards	$ 2
Income tax returns, years under examination	2011 2012 2015 2016
Base year reserves included in retained earnings of acquired thrift institutions for which no deferred federal income tax liability has been recognized	$ 102
Minimum [Member]
Income Taxes Additional Information [Abstract]
Federal, state and foreign net operating loss carryforwards expiration term	Dec. 31, 2020
Federal [Member]
Income Taxes Additional Information [Abstract]
Credit carryforwards	$ 2,500
Federal [Member] \| Maximum [Member]
Income Taxes Additional Information [Abstract]
Credit carryforwards expiration term	Dec. 31, 2039

Income Taxes - Reconciliation o

Income Taxes - Reconciliation of Expected Income Tax Expense at Federal Statutory Rate of 21 Percent and 35 Percent to Company's Applicable Income Tax Expense (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Tax at statutory rate	$ 1,805	$ 1,822	$ 2,631
State income tax, at statutory rates, net of federal tax benefit	355	352	281
Revaluation of tax related assets and liabilities			(910)
Tax credits and benefits, net of related expenses	(424)	(513)	(774)
Tax-exempt income	(120)	(130)	(200)
Nondeductible legal and regulatory expenses	23	52	213
Other items	9	(29)	23
Applicable income taxes	$ 1,648	$ 1,554	$ 1,264

Income Taxes - Reconciliation_2

Income Taxes - Reconciliation of Expected Income Tax Expense at Federal Statutory Rate of 21 Percent and 35 Percent to Company's Applicable Income Tax Expense (Parenthetical) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Corporate tax	21.00%	21.00%	35.00%
Net income tax benefit			$ (910)

Income Taxes - Reconciliation_3

Income Taxes - Reconciliation of Changes in Federal, State and Foreign Unrecognized Tax Position Balances (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Uncertainties [Abstract]
Balance at beginning of period	$ 335	$ 287	$ 302
Additions for tax positions taken in prior years	168	93	3
Additions for tax positions taken in the current year	6	10	9
Exam resolutions	(62)	(51)	(23)
Statute expirations	(15)	(4)	(4)
Balance at end of period	$ 432	$ 335	$ 287

Income Taxes - Significant Comp

Income Taxes - Significant Components of the Company's Net Deferred Tax Asset (Liability) (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Deferred Tax Assets, Gross [Abstract]
Federal, state and foreign net operating loss and credit carryforwards	$ 2,592	$ 2,699
Allowance for credit losses	1,155	1,141
Accrued expenses	485	508
Obligation for operating leases	328
Pension and postretirement benefits	193	85
Partnerships and other investment assets	91	69
Stock compensation	78	79
Fixed assets	2	58
Securities available-for-sale and financial instruments		278
Other deferred tax assets, net	257	268
Gross deferred tax assets	5,181	5,185
Deferred Tax Liabilities
Leasing activities	(2,700)	(2,652)
Goodwill and other intangible assets	(763)	(703)
Mortgage servicing rights	(546)	(642)
Right of use assets	(282)
Loans	(139)	(168)
Securities available-for-sale and financial instruments	(111)
Other deferred tax liabilities, net	(131)	(102)
Gross deferred tax liabilities	(4,672)	(4,267)
Valuation allowance	(127)	(109)
Net Deferred Tax Asset	$ 382	$ 809

Derivative Instruments - Additi

Derivative Instruments - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Derivative [Line Items]
Realized and unrealized gains (losses) on derivatives classified as cash flow hedges recorded in other comprehensive income (loss)		$ (51)	$ 112
Fair value of derivatives under collateral agreements in a net liability position		717
Collateral posted by company netted against net liability position		514
Net Investment Hedging [Member]
Derivative [Line Items]
Non-derivative debt instruments designated as net investment hedges		$ 1,300	$ 1,100
Scenario, Forecast [Member]
Derivative [Line Items]
Estimated gain to be reclassified from other comprehensive income (loss) into earnings	$ 32

Derivative Instruments - Asset

Derivative Instruments - Asset and Liability Management Derivative Positions of Company (Detail) - Asset and Liability Management Positions [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Derivative [Line Items]
Notional Value, Assets	$ 58,966	$ 25,635
Fair Value, Assets	142	155
Notional Value, Liabilities	42,288	26,756
Fair Value, Liabilities	301	123
Other Derivatives [Member]
Derivative [Line Items]
Notional Value, Assets	$ 34	$ 1
Derivative Asset Average Remaining Maturity Period	3 days	3 days
Notional Value, Liabilities	$ 1,823	$ 1,458
Fair Value, Liabilities	$ 165	$ 84
Derivative Liability Average Remaining Maturity Period	2 years 5 months 12 days	1 year 6 months
Other Economic Hedges [Member] \| Interest Rate Contracts [Member] \| Receive Fixed/Pay Floating Swaps [Member]
Derivative [Line Items]
Notional Value, Assets	$ 4,408	$ 3,605
Derivative Asset Average Remaining Maturity Period	5 years 11 months 26 days	14 years 9 months 18 days
Notional Value, Liabilities	$ 5,316	$ 4,333
Derivative Liability Average Remaining Maturity Period	13 years 14 days	6 years 11 months 19 days
Other Economic Hedges [Member] \| Interest Rate Contracts [Member] \| Pay Fixed/Receive Floating Swaps [Member]
Derivative [Line Items]
Notional Value, Assets	$ 1,259	$ 4,333
Derivative Asset Average Remaining Maturity Period	5 years 8 months 1 day	6 years 11 months 19 days
Notional Value, Liabilities	$ 4,497	$ 1,132
Derivative Liability Average Remaining Maturity Period	6 years 10 days	7 years 7 months 20 days
Other Economic Hedges [Member] \| Interest Rate Contracts [Member] \| Futures and Forwards [Member] \| Purchased [Member]
Derivative [Line Items]
Notional Value, Assets	$ 5,409	$ 2,839
Fair Value, Assets	$ 17	$ 27
Derivative Asset Average Remaining Maturity Period	29 days	25 days
Notional Value, Liabilities	$ 5,477	$ 1,140
Fair Value, Liabilities	$ 11	$ 5
Derivative Liability Average Remaining Maturity Period	25 days	18 days
Other Economic Hedges [Member] \| Interest Rate Contracts [Member] \| Futures and Forwards [Member] \| Written [Member]
Derivative [Line Items]
Notional Value, Assets	$ 16,333	$ 994
Fair Value, Assets	$ 13	$ 3
Derivative Asset Average Remaining Maturity Period	9 months 21 days	21 days
Notional Value, Liabilities	$ 8,113	$ 13,968
Fair Value, Liabilities	$ 25	$ 30
Derivative Liability Average Remaining Maturity Period	10 days	8 months 19 days
Other Economic Hedges [Member] \| Interest Rate Contracts [Member] \| Options [Member] \| Purchased [Member]
Derivative [Line Items]
Notional Value, Assets	$ 10,180	$ 5,080
Fair Value, Assets	$ 79	$ 88
Derivative Asset Average Remaining Maturity Period	2 years 11 months 19 days	10 years 9 months 7 days
Other Economic Hedges [Member] \| Interest Rate Contracts [Member] \| Options [Member] \| Written [Member]
Derivative [Line Items]
Notional Value, Assets	$ 1,270	$ 584
Fair Value, Assets	$ 30	$ 16
Derivative Asset Average Remaining Maturity Period	29 days	1 month 2 days
Notional Value, Liabilities	$ 4,238	$ 3
Fair Value, Liabilities	$ 81
Derivative Liability Average Remaining Maturity Period	2 years 25 days	1 month 2 days
Other Economic Hedges [Member] \| Foreign Exchange Forward Contracts [Member]
Derivative [Line Items]
Notional Value, Assets	$ 113	$ 549
Fair Value, Assets	$ 1	$ 7
Derivative Asset Average Remaining Maturity Period	18 days	10 days
Notional Value, Liabilities	$ 467	$ 75
Fair Value, Liabilities	$ 6	$ 1
Derivative Liability Average Remaining Maturity Period	14 days	18 days
Other Economic Hedges [Member] \| Equity Contracts [Member]
Derivative [Line Items]
Notional Value, Assets	$ 128	$ 19
Fair Value, Assets	$ 2	$ 1
Derivative Asset Average Remaining Maturity Period	5 months 12 days	9 months 25 days
Notional Value, Liabilities	$ 20	$ 104
Fair Value, Liabilities		$ 2
Derivative Liability Average Remaining Maturity Period	1 year 21 days	5 months 12 days
Fair Value Hedges [Member] \| Interest Rate Contracts [Member] \| Receive Fixed/Pay Floating Swaps [Member]
Derivative [Line Items]
Notional Value, Assets	$ 18,300
Derivative Asset Average Remaining Maturity Period	3 years 10 months 20 days
Notional Value, Liabilities	$ 4,900
Derivative Liability Average Remaining Maturity Period	3 years 5 months 26 days
Cash Flow Hedges [Member] \| Interest Rate Contracts [Member] \| Pay Fixed/Receive Floating Swaps [Member]
Derivative [Line Items]
Notional Value, Assets	$ 1,532	$ 7,422
Fair Value, Assets		$ 8
Derivative Asset Average Remaining Maturity Period	6 years 21 days	3 years 1 month 9 days
Notional Value, Liabilities	$ 7,150	$ 4,320
Fair Value, Liabilities	$ 10
Derivative Liability Average Remaining Maturity Period	2 years 1 month 9 days	1 year 9 months 7 days
Net Investment Hedges [Member] \| Foreign Exchange Forward Contracts [Member]
Derivative [Line Items]
Notional Value, Assets		$ 209
Fair Value, Assets		$ 5
Derivative Asset Average Remaining Maturity Period		18 days
Notional Value, Liabilities	$ 287	$ 223
Fair Value, Liabilities	$ 3	$ 1
Derivative Liability Average Remaining Maturity Period	14 days	18 days

Derivative Instruments - Asse_2

Derivative Instruments - Asset and Liability Management Derivative Positions of Company (Parenthetical) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Swap [Member] \| Visa Class B Shares [Member]
Derivative [Line Items]
Notional Value, Liabilities	$ 1,800	$ 1,500
Fair Value, Liabilities	$ 165	$ 84
Derivative Liability Average Remaining Maturity Period	2 years 6 months	1 year 6 months
Underwriting Purchase and Sale Commitments [Member]
Derivative [Line Items]
Notional Value, Assets	$ 34	$ 1
Notional Value, Liabilities	$ 34	$ 1

Derivative Instruments - Custom

Derivative Instruments - Customer-Related Derivative Positions of Company (Detail) - Customer-Related Positions [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Derivative [Line Items]
Notional Value, Assets	$ 242,263	$ 184,339
Fair Value, Assets	2,755	1,855
Notional Value, Liabilities	248,893	188,667
Fair Value, Liabilities	1,682	1,672
Interest Rate Contracts [Member] \| Receive Fixed/Pay Floating Swaps [Member]
Derivative [Line Items]
Notional Value, Assets	108,560	42,054
Fair Value, Assets	$ 1,865	$ 754
Derivative Asset Average Remaining Maturity Period	4 years 9 months 29 days	6 years 8 months 23 days
Notional Value, Liabilities	$ 31,544	$ 60,731
Fair Value, Liabilities	$ 88	$ 456
Derivative Liability Average Remaining Maturity Period	3 years 9 months 29 days	4 years 3 months 25 days
Interest Rate Contracts [Member] \| Pay Fixed/Receive Floating Swaps [Member]
Derivative [Line Items]
Notional Value, Assets	$ 28,150	$ 60,970
Fair Value, Assets	$ 30	$ 288
Derivative Asset Average Remaining Maturity Period	3 years 9 months 29 days	3 years 10 months 24 days
Notional Value, Liabilities	$ 101,078	$ 40,499
Fair Value, Liabilities	$ 753	$ 420
Derivative Liability Average Remaining Maturity Period	4 years 6 months 18 days	6 years 6 months 25 days
Interest Rate Contracts [Member] \| Other Derivatives [Member]
Derivative [Line Items]
Notional Value, Assets	$ 6,895	$ 5,777
Fair Value, Assets	$ 1	$ 2
Derivative Asset Average Remaining Maturity Period	3 years 5 months 12 days	3 years 9 months 7 days
Notional Value, Liabilities	$ 6,218	$ 6,496
Fair Value, Liabilities	$ 2	$ 2
Derivative Liability Average Remaining Maturity Period	2 years 11 months 23 days	2 years 8 months 19 days
Interest Rate Contracts [Member] \| Options [Member] \| Purchased [Member]
Derivative [Line Items]
Notional Value, Assets	$ 46,406	$ 41,711
Fair Value, Assets	$ 43	$ 51
Derivative Asset Average Remaining Maturity Period	2 years 21 days	1 year 6 months 14 days
Notional Value, Liabilities	$ 12,804	$ 1,940
Fair Value, Liabilities	$ 47	$ 30
Derivative Liability Average Remaining Maturity Period	1 year 3 months	1 year 11 months 23 days
Interest Rate Contracts [Member] \| Options [Member] \| Written [Member]
Derivative [Line Items]
Notional Value, Assets	$ 6,901	$ 2,060
Fair Value, Assets	$ 49	$ 32
Derivative Asset Average Remaining Maturity Period	1 year 11 months 4 days	2 years 25 days
Notional Value, Liabilities	$ 49,741	$ 39,538
Fair Value, Liabilities	$ 41	$ 51
Derivative Liability Average Remaining Maturity Period	1 year 9 months 25 days	1 year 5 months 8 days
Interest Rate Contracts [Member] \| Futures [Member] \| Purchased [Member]
Derivative [Line Items]
Notional Value, Assets	$ 894	$ 460
Derivative Asset Average Remaining Maturity Period	2 months 15 days	1 year 6 months 29 days
Interest Rate Contracts [Member] \| Futures [Member] \| Written [Member]
Derivative [Line Items]
Notional Value, Assets	$ 3,874
Fair Value, Assets	$ 1
Derivative Asset Average Remaining Maturity Period	1 year 2 months 4 days
Notional Value, Liabilities	$ 1,995	$ 6,190
Fair Value, Liabilities		$ 1
Derivative Liability Average Remaining Maturity Period	1 year 14 days	7 months 2 days
Foreign Exchange Rate Contracts [Member] \| Forwards, Spots and Swaps [Member]
Derivative [Line Items]
Notional Value, Assets	$ 36,350	$ 26,210
Fair Value, Assets	$ 748	$ 681
Derivative Asset Average Remaining Maturity Period	11 months 19 days	10 months 28 days
Notional Value, Liabilities	$ 36,671	$ 25,571
Fair Value, Liabilities	$ 729	$ 663
Derivative Liability Average Remaining Maturity Period	1 year 25 days	10 months 17 days
Foreign Exchange Option [Member] \| Purchased [Member]
Derivative [Line Items]
Notional Value, Assets	$ 1,354	$ 2,779
Fair Value, Assets	$ 17	$ 47
Derivative Asset Average Remaining Maturity Period	6 months 14 days	9 months
Foreign Exchange Option [Member] \| Written [Member]
Derivative [Line Items]
Notional Value, Liabilities	$ 1,354	$ 2,779
Fair Value, Liabilities	$ 17	$ 47
Derivative Liability Average Remaining Maturity Period	6 months 14 days	9 months
Credit Contracts [Member]
Derivative [Line Items]
Notional Value, Assets	$ 2,879	$ 2,318
Fair Value, Assets	$ 1
Derivative Asset Average Remaining Maturity Period	3 years 3 months 10 days	3 years 6 months
Notional Value, Liabilities	$ 7,488	$ 4,923
Fair Value, Liabilities	$ 5	$ 2
Derivative Liability Average Remaining Maturity Period	4 years 3 months 29 days	4 years 14 days

Derivative Instruments - Summar

Derivative Instruments - Summary of Effective Portion of Gains (Losses) Recognized in Other Comprehensive Income (Loss) and Gains (Losses) Reclassified from Other Comprehensive Income (Loss) into Earnings (Detail) - Asset and Liability Management Positions [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash Flow Hedges [Member] \| Interest Rate Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Losses) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	$ (171)	$ 29	$ (3)
Derivative Instruments, Gains (Losses) Reclassified from Other Comprehensive Income (Loss) into Earnings	(8)	3	(19)
Net Investment Hedges [Member] \| Foreign Exchange Forward Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Losses) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	3	39	(56)
Net Investment Hedges [Member] \| Non Derivative Debt Instruments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Losses) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	$ 13	$ 32	$ (46)

Derivative Instruments - Effect

Derivative Instruments - Effect of Fair Value and Cash Flow Hedge Accounting Included in Interest Expense on Consolidated Statement of Income (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Other Noninterest Income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Total amount of income line items presented in the Consolidated Statement of Income in which the effects of fair value or cash flow hedges are recorded	$ 926	$ 910	$ 774
Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Total amount of expense line items presented in the Consolidated Statement of Income in which the effects of fair value or cash flow hedges are recorded	4,442	3,254	1,966
Asset and Liability Management Positions [Member] \| Fair Value Hedges [Member] \| Other Noninterest Income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gains (Losses) Recognized in Earnings related to fair value hedged item			28
Asset and Liability Management Positions [Member] \| Fair Value Hedges [Member] \| Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gains (Losses) Recognized in Earnings related to fair value hedged item	44	(5)
Asset and Liability Management Positions [Member] \| Fair Value Hedges [Member] \| Interest Rate Contracts [Member] \| Other Noninterest Income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gains (Losses) Recognized in Earnings related to fair value hedge			(28)
Asset and Liability Management Positions [Member] \| Fair Value Hedges [Member] \| Interest Rate Contracts [Member] \| Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gains (Losses) Recognized in Earnings related to fair value hedge	(44)	5
Asset and Liability Management Positions [Member] \| Cash Flow Hedges [Member] \| Interest Rate Contracts [Member] \| Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gains (Losses) Recognized in Earnings related to cash flow hedge	$ 11	$ (5)	$ 30

Derivative Instruments - Summ_2

Derivative Instruments - Summary of Cumulative Hedging Adjustments and the Carrying Amount of Assets (Liabilities) Designated in Fair Value Hedges (Detail) - Fair Value Hedges [Member] - Long-term Debt Securities [Member] - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Carrying amount of the hedged assets (liabilities), Long-term debt	$ 23,195
Cumulative hedging Adjustment included in the carrying amount of the hedged assets (liabilities)	$ 35	$ (27)

Derivative Instruments - Summ_3

Derivative Instruments - Summary of Cumulative Hedging Adjustments and the Carrying Amount of Assets (Liabilities) Designated in Fair Value Hedges (Parenthetical) (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Fair Value Hedges [Member] \| Long-term Debt Securities [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Cumulative hedging adjustment related to discontinued hedging relationships	$ (7)	$ (27)

Derivative Instruments - Summ_4

Derivative Instruments - Summary of Gains (Losses) Recognized in Earnings for Other Economic Hedges and Customer-Related Positions (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Customer-Related Positions [Member] \| Interest Rate Contracts [Member] \| Commercial Products Revenue [Member] \| Options [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in earnings	$ 10	$ 2	$ (24)
Customer-Related Positions [Member] \| Interest Rate Contracts [Member] \| Commercial Products Revenue [Member] \| Futures [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in earnings	(5)	9	(3)
Customer-Related Positions [Member] \| Swaps [Member] \| Commercial Products Revenue [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in earnings	82	47	67
Customer-Related Positions [Member] \| Credit Contracts [Member] \| Commercial Products Revenue [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in earnings	(18)	2	3
Customer-Related Positions [Member] \| Foreign Exchange Rate Contracts [Member] \| Commercial Products Revenue [Member] \| Options [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in earnings	1		2
Customer-Related Positions [Member] \| Foreign Exchange Rate Contracts [Member] \| Commercial Products Revenue [Member] \| Forwards, Spots and Swaps [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in earnings	82	84	92
Asset and Liability Management Positions [Member] \| Other Economic Hedges [Member] \| Interest Rate Contracts [Member] \| Mortgage Banking Revenue [Member] \| Futures and Forwards [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in earnings	34	110	24
Asset and Liability Management Positions [Member] \| Other Economic Hedges [Member] \| Interest Rate Contracts [Member] \| Mortgage Banking Revenue [Member] \| Options [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in earnings	432	188	237
Asset and Liability Management Positions [Member] \| Other Economic Hedges [Member] \| Swaps [Member] \| Mortgage Banking Revenue [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in earnings	316	(111)	35
Asset and Liability Management Positions [Member] \| Other Economic Hedges [Member] \| Foreign Exchange Forward Contracts [Member] \| Other Noninterest Income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in earnings	(24)	39	(69)
Asset and Liability Management Positions [Member] \| Other Economic Hedges [Member] \| Equity Contracts [Member] \| Compensation Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in earnings		(4)	1
Asset and Liability Management Positions [Member] \| Other Economic Hedges [Member] \| Other Derivatives [Member] \| Other Noninterest Income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in earnings	$ (140)	$ 2	$ (1)

Netting Arrangements for Cert_3

Netting Arrangements for Certain Financial Instruments and Securities Financing Activities - Additional Information (Detail) $ in Billions	Dec. 31, 2019USD ($)
Derivative [Line Items]
Notional amount of derivative	$ 592.4
Over the Counter Trades [Member]
Derivative [Line Items]
Notional amount of derivative	299.4
Exchange Cleared [Member]
Derivative [Line Items]
Notional amount of derivative	272.4
Exchange Traded [Member]
Derivative [Line Items]
Notional amount of derivative	$ 20.6

Netting Arrangements for Cert_4

Netting Arrangements for Certain Financial Instruments and Securities Financing Activities - Summary of Maturities by Category of Collateral Pledged for Repurchase Agreements and Securities Loaned Transactions (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	$ 1,165	$ 2,594
Securities loaned	50	227
Gross amount of recognized liabilities for repurchase agreements and securities loaned	1,215	2,821
Overnight and Continuous [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	1,165	1,179
Securities loaned	50	227
Gross amount of recognized liabilities for repurchase agreements and securities loaned	1,215	1,406
30-89 Days [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements		945
Gross amount of recognized liabilities for repurchase agreements and securities loaned		945
Greater than 90 Days [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements		470
Gross amount of recognized liabilities for repurchase agreements and securities loaned		470
U.S. Treasury and Agencies [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	289	134
U.S. Treasury and Agencies [Member] \| Overnight and Continuous [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	289	134
Residential Mortgage-Backed Securities [Member] \| Agency [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	266	1,980
Residential Mortgage-Backed Securities [Member] \| Overnight and Continuous [Member] \| Agency [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	266	565
Residential Mortgage-Backed Securities [Member] \| 30-89 Days [Member] \| Agency [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements		945
Residential Mortgage-Backed Securities [Member] \| Greater than 90 Days [Member] \| Agency [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements		470
Corporate Debt Securities [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	610	480
Securities loaned	50	227
Corporate Debt Securities [Member] \| Overnight and Continuous [Member]
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	610	480
Securities loaned	$ 50	$ 227

Netting Arrangements for Cert_5

Netting Arrangements for Certain Financial Instruments and Securities Financing Activities - Information on Company's Accounting Netting Adjustments and Items Not Offset in Consolidated Balance Sheet Assets But Available for Offset in Event of Default (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Offsetting [Abstract]
Derivative assets Gross Recognized Assets	$ 2,857	$ 1,987
Reverse repurchase agreements Gross Recognized Assets	1,021	205
Securities borrowed Gross Recognized Assets	1,624	1,069
Total Gross Recognized Assets	5,502	3,261
Derivative assets Gross amounts assets offset in consolidated balance sheet	(982)	(942)
Total Gross amounts assets offset in consolidated balance sheet	(982)	(942)
Derivative assets Net Amounts Presented in the Consolidated Balance Sheet	1,875	1,045
Reverse repurchase agreements Net Amounts Presented in the Consolidated Balance Sheet	1,021	205
Securities borrowed Net Amounts Presented in the Consolidated Balance Sheet	1,624	1,069
Total Net Amounts Presented in the Consolidated Balance Sheet	4,520	2,319
Derivative assets Gross financial instrument asset amounts not offset in consolidated balance sheet	(80)	(106)
Reverse repurchase agreements Gross financial instrument asset amounts not offset in consolidated balance sheet	(152)	(114)
Total Gross financial instrument asset amounts not offset in consolidated balance sheet	(232)	(220)
Derivative assets Gross collateral received amounts not offset in consolidated balance sheet	(116)	(16)
Reverse repurchase agreements Gross collateral received amounts not offset in consolidated balance sheet	(869)	(91)
Securities borrowed Gross collateral received amounts not offset in consolidated balance sheet	(1,569)	(1,039)
Total Gross collateral received amounts not offset in consolidated balance sheet	(2,554)	(1,146)
Derivative assets Net Amount	1,679	923
Securities borrowed Net Amount	55	30
Total Net Amount Assets	$ 1,734	$ 953

Netting Arrangements for Cert_6

Netting Arrangements for Certain Financial Instruments and Securities Financing Activities - Information on Company's Accounting Netting Adjustments and Items Not Offset in Consolidated Balance Sheet Assets But Available for Offset in Event of Default (Parenthetical) (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Offsetting [Abstract]
Cash collateral netted against derivative assets	$ 429	$ 236
Derivative assets not subject to netting arrangements	$ 40	$ 23

Netting Arrangements for Cert_7

Netting Arrangements for Certain Financial Instruments and Securities Financing Activities - Information on Company's Accounting Netting Adjustments and Items Not Offset in Consolidated Balance Sheet Liabilities But Available for Offset in Event of Default (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Offsetting [Abstract]
Derivative liabilities Gross recognized liabilities	$ 1,816	$ 1,710
Repurchase agreements Gross recognized liabilities	1,165	2,594
Securities loaned Gross recognized liabilities	50	227
Total Gross recognized liabilities	3,031	4,531
Derivative liabilities Gross amounts liabilities offset in consolidated balance sheet	(1,067)	(946)
Total Gross amounts liabilities offset in consolidated balance sheet	(1,067)	(946)
Derivative liabilities Net amounts liabilities presented in consolidated balance sheet	749	764
Repurchase agreements Net amounts liabilities presented in consolidated balance sheet	1,165	2,594
Securities loaned Net amounts liabilities presented in consolidated balance sheet	50	227
Total Net amounts liabilities presented in consolidated balance sheet	1,964	3,585
Derivative liabilities Gross financial instrument liability amounts not offset in consolidated balance sheet	(80)	(106)
Repurchase agreements Gross financial instrument liability amounts not offset in consolidated balance sheet	(152)	(114)
Total Gross financial instrument liability amounts not offset in consolidated balance sheet	(232)	(220)
Repurchase agreements Gross collateral pledged amounts not offset in consolidated balance sheet	(1,012)	(2,480)
Securities loaned Gross collateral pledged amounts not offset in consolidated balance sheet	(49)	(224)
Total Gross collateral pledged amounts not offset in consolidated balance sheet	(1,061)	(2,704)
Derivative liabilities Net Amount	669	658
Repurchase agreements Net Amount	1
Securities loaned Net Amount	1	3
Total Net Amount Liabilities	$ 671	$ 661

Netting Arrangements for Cert_8

Netting Arrangements for Certain Financial Instruments and Securities Financing Activities - Information on Company's Accounting Netting Adjustments and Items Not Offset in Consolidated Balance Sheet Liabilities But Available for Offset in Event of Default (Parenthetical) (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Offsetting [Abstract]
Cash collateral netted against derivative liabilities	$ 514	$ 240
Derivative liabilities not subject to netting arrangements	$ 167	$ 85

Fair Values of Assets and Lia_3

Fair Values of Assets and Liabilities - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Carrying value of unfunded commitments, deferred non-yield related loan fees and standby letters of credit	$ 528	$ 532
Other guarantees carrying value	200	263
Changes to fair value of these MLHFS	$ 73	$ (60)	$ 84
Minimum [Member]
Fair Value Disclosures [Abstract]
Assumed credit valuation adjustment as percentage of derivative contract fair value	0.00%
Maximum [Member]
Fair Value Disclosures [Abstract]
Assumed credit valuation adjustment as percentage of derivative contract fair value	671.00%
Weighted Average [Member]
Fair Value Disclosures [Abstract]
Assumed credit valuation adjustment as percentage of derivative contract fair value	1.00%

Fair Values of Assets and Lia_4

Fair Values of Assets and Liabilities - Valuation Assumption Ranges for MSRs (Detail) - Mortgage Servicing Rights [Member]	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Expected prepayment	12.40%	9.50%
Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Expected prepayment	9.00%
Option adjusted spread	6.00%
Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Expected prepayment	22.00%
Option adjusted spread	10.00%
Weighted Average [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Expected prepayment	12.00%
Option adjusted spread	7.00%

Fair Values of Assets and Lia_5

Fair Values of Assets and Liabilities - Valuation Assumption Ranges for Derivative Commitments (Detail) - Derivative Mortgage Loans Commitments [Member]	Dec. 31, 2019
Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Expected loan close rate	12.00%
Inherent MSR value (basis points per loan)	56.00%
Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Expected loan close rate	100.00%
Inherent MSR value (basis points per loan)	221.00%
Weighted Average [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Expected loan close rate	78.00%
Inherent MSR value (basis points per loan)	130.00%

Fair Values of Assets and Lia_6

Fair Values of Assets and Liabilities - Balances of Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Millions		Dec. 31, 2019		Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities netting		$ (1,067)		$ (946)
Derivative assets netting		(982)		(942)
Available-for-sale securities	[1]	122,613	[2]	66,115
Mortgage loans held for sale		5,533		2,035
Mortgage servicing rights		2,546		2,791	$ 2,645	$ 2,591
Asset-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities	[3]	383
Asset-Backed Securities [Member] \| Collateralized Loan Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		1
Asset-Backed Securities [Member] \| Other Asset-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		382		403
Obligations of Foreign Governments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		9
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities total		916		849
Derivative assets total		1,915		1,068
Available-for-sale securities		122,613		66,115
Mortgage servicing rights		2,546		2,791
Other assets		1,875		1,665
Total		134,482		73,674
Short-term borrowings and other liabilities	[4]	1,628		1,218
Total		2,544		2,067
Fair Value, Measurements, Recurring [Member] \| Netting and Collateral One [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities netting		(1,067)		(946)
Derivative assets netting		(982)		(942)
Total		(982)		(942)
Total		(1,067)		(946)
Fair Value, Measurements, Recurring [Member] \| U.S. Treasury and Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		19,839		19,257
Fair Value, Measurements, Recurring [Member] \| Obligations of State and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		6,814		6,701
Fair Value, Measurements, Recurring [Member] \| Residential Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		94,111		39,752
Fair Value, Measurements, Recurring [Member] \| Commercial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		1,453		2
Fair Value, Measurements, Recurring [Member] \| Asset-Backed Securities [Member] \| Collateralized Loan Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		1
Fair Value, Measurements, Recurring [Member] \| Asset-Backed Securities [Member] \| Other Asset-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		382		403
Fair Value, Measurements, Recurring [Member] \| Obligations of Foreign Governments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		9
Fair Value, Measurements, Recurring [Member] \| Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		4
Level 1 [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities before netting				1
Derivative assets before netting		9
Available-for-sale securities		18,986		18,585
Other assets		312		392
Total		19,307		18,977
Short-term borrowings and other liabilities	[4]	50		199
Total		50		200
Level 1 [Member] \| Fair Value, Measurements, Recurring [Member] \| U.S. Treasury and Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		18,986		18,585
Level 2 [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities before netting		1,612		1,291
Derivative assets before netting		1,707		1,427
Available-for-sale securities		103,618		47,530
Mortgage loans held for sale		5,533		2,035
Other assets		1,563		1,273
Total		112,421		52,265
Short-term borrowings and other liabilities	[4]	1,578		1,019
Total		3,190		2,310
Level 2 [Member] \| Fair Value, Measurements, Recurring [Member] \| U.S. Treasury and Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		853		672
Level 2 [Member] \| Fair Value, Measurements, Recurring [Member] \| Obligations of State and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		6,813		6,701
Level 2 [Member] \| Fair Value, Measurements, Recurring [Member] \| Residential Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		94,111		39,752
Level 2 [Member] \| Fair Value, Measurements, Recurring [Member] \| Commercial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		1,453		2
Level 2 [Member] \| Fair Value, Measurements, Recurring [Member] \| Asset-Backed Securities [Member] \| Other Asset-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		375		403
Level 2 [Member] \| Fair Value, Measurements, Recurring [Member] \| Obligations of Foreign Governments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		9
Level 2 [Member] \| Fair Value, Measurements, Recurring [Member] \| Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		4
Level 3 [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities before netting		371		503
Derivative assets before netting		1,181		583
Available-for-sale securities		9
Mortgage servicing rights		2,546		2,791
Total		3,736		3,374
Total		371		$ 503
Level 3 [Member] \| Fair Value, Measurements, Recurring [Member] \| Obligations of State and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		1
Level 3 [Member] \| Fair Value, Measurements, Recurring [Member] \| Asset-Backed Securities [Member] \| Collateralized Loan Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		1
Level 3 [Member] \| Fair Value, Measurements, Recurring [Member] \| Asset-Backed Securities [Member] \| Other Asset-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities		$ 7

[1]	Includes only collateral pledged by the Company where counterparties have the right to sell or pledge the collateral.
[2]	The weighted-average maturity of total available-for-sale and held-to-maturity investment securities was 5.3 years at December 31, 2018, with a corresponding weighted-average yield of 2.53 percent.
[3]	Information related to asset and mortgage-backed securities included above is presented based upon weighted-average maturities that take into account anticipated future prepayments.
[4]	Primarily represents the Company’s obligation on securities sold short required to be accounted for at fair value per applicable accounting guidance.

Fair Values of Assets and Lia_7

Fair Values of Assets and Liabilities - Balances of Assets and Liabilities Measured at Fair Value on Recurring Basis (Parenthetical) (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Fair Value Disclosures [Abstract]
Equity investments without readily determinable fair values	$ 91	$ 86

Fair Values of Assets and Lia_8

Fair Values of Assets and Liabilities - Changes in Fair Value for All Assets and Liabilities Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (Level 3) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Mortgage Servicing Rights [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning of Period Balance	$ 2,791	$ 2,645	$ 2,591
Net Gains (Losses) Included in Net Income	(829)	(232)	(404)
Purchases	20	8	13
Sales	5	(27)
Issuances	559	397	445
End of Period Balance	2,546	2,791	2,645
Net Change in Unrealized Gains (Losses) Relating to Assets and Liabilities Held at End of Period	(829)	(232)	(404)
Corporate Debt Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning of Period Balance			9
Net Gains (Losses) Included in Other Comprehensive Income (Loss)			2
Sales			(11)
Obligations of State and Political Subdivisions [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Transfers into Level 3	1
End of Period Balance	1
Available-for-Sale Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning of Period Balance			448
Net Gains (Losses) Included in Other Comprehensive Income (Loss)			(17)
Sales			(422)
Principal Payments			(9)
Transfers into Level 3	9
End of Period Balance	9
Derivative [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning of Period Balance	80	107	171
Net Gains (Losses) Included in Net Income	769	21	317
Purchases	142	13	1
Sales	(9)	(41)	(10)
Settlements	(172)	(20)	(372)
End of Period Balance	810	80	107
Net Change in Unrealized Gains (Losses) Relating to Assets and Liabilities Held at End of Period	782	$ 34	(52)
Residential Mortgage-Backed Securities [Member] \| Non-Agency Prime [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning of Period Balance			242
Net Gains (Losses) Included in Other Comprehensive Income (Loss)			(2)
Sales			(234)
Principal Payments			(6)
Residential Mortgage-Backed Securities [Member] \| Non-Agency Non-Prime [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning of Period Balance			195
Net Gains (Losses) Included in Other Comprehensive Income (Loss)			(17)
Sales			(175)
Principal Payments			(3)
Asset-Backed Securities [Member] \| Other Asset-Backed Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning of Period Balance			2
Sales			$ (2)
Transfers into Level 3	7
End of Period Balance	7
Asset-Backed Securities [Member] \| Collateralized Loan Obligations [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Transfers into Level 3	1
End of Period Balance	$ 1

Fair Values of Assets and Lia_9

Fair Values of Assets and Liabilities - Changes in Fair Value for All Assets and Liabilities Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (Level 3) (Parenthetical) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Other Noninterest Income [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Net gains and (losses) on net derivative assets and liabilities included in net income	$ 287	$ (139)	$ 21
Net Change in net derivative asset and liability unrealized gains (losses) relating to assets still held at end of period	747	14	(77)
Mortgage Banking Revenue [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Net gains and (losses) on net derivative assets and liabilities included in net income	482	160	296
Net Change in net derivative asset and liability unrealized gains (losses) relating to assets still held at end of period	$ 35	$ 20	$ 25

Fair Values of Assets and Li_10

Fair Values of Assets and Liabilities - Adjusted Carrying Values for Assets Measured at Fair Value on Nonrecurring Basis (Detail) - Fair Value, Measurements, Nonrecurring [Member] - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	$ 136	$ 40
Other assets	46	57
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	136	40
Other assets	$ 46	$ 57

Fair Values of Assets and Li_11

Fair Values of Assets and Liabilities - Losses Recognized Related to Nonrecurring Fair Value Measurements of Individual Assets or Portfolios (Detail) - Fair Value, Measurements, Nonrecurring [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Loans Receivable [Member]
Fair Value Assets Measured On Nonrecurring Basis Losses Recognized [Line Items]
Losses recognized related to nonrecurring fair value measurements	$ 122	$ 83	$ 171
Other Assets [Member]
Fair Value Assets Measured On Nonrecurring Basis Losses Recognized [Line Items]
Losses recognized related to nonrecurring fair value measurements	$ 17	$ 26	$ 20

Fair Values of Assets and Li_12

Fair Values of Assets and Liabilities - Differences Between Aggregate Fair Value Carrying Amount of MLHFS for which Fair Value Option has been Elected and Aggregate Unpaid Principal Amount Contractually Obligated to Receive at Maturity (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Fair Value Disclosures [Abstract]
Fair value carrying amount, total loans	$ 5,533	$ 2,035
Fair value carrying amount, nonaccrual loans	1	2
Fair value carrying amount, loans 90 days or more past due	1
Aggregate unpaid principal, total loans	5,366	1,972
Aggregate unpaid principal, nonaccrual loans	1	2
Aggregate unpaid principal, loans 90 days or more past due	1
Carrying amount over (under) unpaid principal, total loans	$ 167	$ 63

Fair Values of Assets and Li_13

Fair Values of Assets and Liabilities - Estimated Fair Values of Financial Instruments (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Financial Assets
Cash and due from banks	$ 22,405	$ 21,453	$ 19,505	$ 15,705
Investment securities held-to-maturity		46,050
Loans	292,082	282,837
Financial Liabilities
Time deposits	42,894	44,554
Long-term debt	40,167	41,340
Carrying Amount [Member]
Financial Assets
Cash and due from banks	22,405	21,453
Federal funds sold and securities purchased under resale agreements	1,036	306
Investment securities held-to-maturity		46,050
Loans held for sale	45	21
Loans	292,082	282,837
Other	1,923	2,412
Financial Liabilities
Time deposits	42,894	44,554
Short-term borrowings	22,095	12,921
Long-term debt	40,167	41,340
Other	3,678	1,726
Fair Value [Member]
Financial Assets
Cash and due from banks	22,405	21,453
Federal funds sold and securities purchased under resale agreements	1,036	306
Investment securities held-to-maturity		44,964
Loans held for sale	43	21
Loans	297,241	284,790
Other	1,923	2,412
Financial Liabilities
Time deposits	42,831	44,140
Short-term borrowings	21,461	12,678
Long-term debt	41,077	41,003
Other	3,678	1,726
Fair Value [Member] \| Level 1 [Member]
Financial Assets
Cash and due from banks	22,405	21,453
Investment securities held-to-maturity		4,594
Fair Value [Member] \| Level 2 [Member]
Financial Assets
Federal funds sold and securities purchased under resale agreements	1,036	306
Investment securities held-to-maturity		40,359
Other	929	1,241
Financial Liabilities
Time deposits	42,831	44,140
Short-term borrowings	21,461	12,678
Long-term debt	41,077	41,003
Other	1,342
Fair Value [Member] \| Level 3 [Member]
Financial Assets
Investment securities held-to-maturity		11
Loans held for sale	43	21
Loans	297,241	284,790
Other	994	1,171
Financial Liabilities
Other	$ 2,336	$ 1,726

Guarantees and Contingent Lia_3

Guarantees and Contingent Liabilities - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Securities Lending Indemnifications [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Maximum Potential Future Payments	$ 4,468
Collateral Held	4,564
Tender Option Bond Program Guarantee [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Maximum Potential Future Payments	2,725
Collateral Held	2,994
Minimum Revenue Guarantees [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Maximum Potential Future Payments	3
Standby Letters of Credit [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Maximum Potential Future Payments	$ 10,258
Weighted-average term of standby letter of credit arrangements	21 months
Carrying Amount	$ 48
Third Party Borrowing Arrangements [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Maximum Potential Future Payments	7
Asset Sales [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Maximum Potential Future Payments	5,069
Carrying Amount	68
Merchant Processing [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Maximum Potential Future Payments	108,875
Carrying Amount	61
Collateral Held	589
Airline Processing Arrangements [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Value of airline tickets purchased to deliver at future date through card transactions	8,300
Representation and Warranty [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Carrying Amount	9	$ 10
Unresolved representation and warranty claims from GSEs	10	$ 15
Tax Advantaged Investments Sales [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Carrying Amount	68
Unresolved Merchant Charge-backs [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Carrying Amount	89
Collateral Held	17
Escrow Deposits Letters of Credit Indemnities [Member] \| Airline Processing Arrangements [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Collateral Held	496
Merchant Escrow Deposits [Member] \| Airline Processing Arrangements [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Collateral Held	44
Wholly Owned Unconsolidated Trust [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Maximum Potential Future Payments	$ 681
Percentage of common equity in wholly owned USB Capital IX	100.00%
Total assets of trust consisting primarily of Series A Preferred Stock	$ 682
Subsidiaries Financial Performance [Member]
Guarantees And Contingent Liabilities (Textual) [Abstract]
Maximum Potential Future Payments	$ 781

Guarantees and Contingent Lia_4

Guarantees and Contingent Liabilities - Contract or Notional Amounts of Unfunded Commitments to Extend Credit (Detail) $ in Millions	Dec. 31, 2019USD ($)
Commercial and Commercial Real Estate Loans [Member]
Other Commitments [Line Items]
Contract or notional amounts of unfunded commitments to extend credit	$ 139,538
Corporate and Purchasing Card Loans [Member]
Other Commitments [Line Items]
Contract or notional amounts of unfunded commitments to extend credit	29,296
Residential Mortgages [Member]
Other Commitments [Line Items]
Contract or notional amounts of unfunded commitments to extend credit	417
Credit Card [Member]
Other Commitments [Line Items]
Contract or notional amounts of unfunded commitments to extend credit	111,773
Other Retail Loans [Member]
Other Commitments [Line Items]
Contract or notional amounts of unfunded commitments to extend credit	36,797
Other [Member]
Other Commitments [Line Items]
Contract or notional amounts of unfunded commitments to extend credit	6,325
Less Than One Year [Member] \| Commercial and Commercial Real Estate Loans [Member]
Other Commitments [Line Items]
Contract or notional amounts of unfunded commitments to extend credit	31,235
Less Than One Year [Member] \| Corporate and Purchasing Card Loans [Member]
Other Commitments [Line Items]
Contract or notional amounts of unfunded commitments to extend credit	29,296
Less Than One Year [Member] \| Residential Mortgages [Member]
Other Commitments [Line Items]
Contract or notional amounts of unfunded commitments to extend credit	416
Less Than One Year [Member] \| Credit Card [Member]
Other Commitments [Line Items]
Contract or notional amounts of unfunded commitments to extend credit	111,773
Less Than One Year [Member] \| Other Retail Loans [Member]
Other Commitments [Line Items]
Contract or notional amounts of unfunded commitments to extend credit	12,614
Less Than One Year [Member] \| Other [Member]
Other Commitments [Line Items]
Contract or notional amounts of unfunded commitments to extend credit	6,325
Greater Than One Year [Member] \| Commercial and Commercial Real Estate Loans [Member]
Other Commitments [Line Items]
Contract or notional amounts of unfunded commitments to extend credit	108,303
Greater Than One Year [Member] \| Residential Mortgages [Member]
Other Commitments [Line Items]
Contract or notional amounts of unfunded commitments to extend credit	1
Greater Than One Year [Member] \| Other Retail Loans [Member]
Other Commitments [Line Items]
Contract or notional amounts of unfunded commitments to extend credit	$ 24,183

Guarantees and Contingent Lia_5

Guarantees and Contingent Liabilities - Summary of Other Guarantees and Contingent Liabilities (Detail) $ in Millions	Dec. 31, 2019USD ($)
Standby Letters of Credit [Member]
Guarantor Obligations [Line Items]
Carrying Amount	$ 48
Maximum Potential Future Payments	10,258
Third Party Borrowing Arrangements [Member]
Guarantor Obligations [Line Items]
Maximum Potential Future Payments	7
Securities Lending Indemnifications [Member]
Guarantor Obligations [Line Items]
Collateral Held	4,564
Maximum Potential Future Payments	4,468
Asset Sales [Member]
Guarantor Obligations [Line Items]
Carrying Amount	68
Maximum Potential Future Payments	5,069
Merchant Processing [Member]
Guarantor Obligations [Line Items]
Collateral Held	589
Carrying Amount	61
Maximum Potential Future Payments	108,875
Tender Option Bond Program Guarantee [Member]
Guarantor Obligations [Line Items]
Collateral Held	2,994
Maximum Potential Future Payments	2,725
Minimum Revenue Guarantees [Member]
Guarantor Obligations [Line Items]
Maximum Potential Future Payments	3
Other Guarantees [Member]
Guarantor Obligations [Line Items]
Carrying Amount	71
Maximum Potential Future Payments	$ 1,461

Guarantees and Contingent Lia_6

Guarantees and Contingent Liabilities - Contract or Notional Amount of Letters of Credit (Detail) $ in Millions	Dec. 31, 2019USD ($)
Commercial [Member]
Letters Of Credit [Line Items]
Contract or notional amount of letters of credit	$ 367
Commercial [Member] \| Less Than One Year [Member]
Letters Of Credit [Line Items]
Contract or notional amount of letters of credit	339
Commercial [Member] \| Greater Than One Year [Member]
Letters Of Credit [Line Items]
Contract or notional amount of letters of credit	28
Standby Letters of Credit [Member]
Letters Of Credit [Line Items]
Contract or notional amount of letters of credit	10,258
Standby Letters of Credit [Member] \| Less Than One Year [Member]
Letters Of Credit [Line Items]
Contract or notional amount of letters of credit	4,676
Standby Letters of Credit [Member] \| Greater Than One Year [Member]
Letters Of Credit [Line Items]
Contract or notional amount of letters of credit	$ 5,582

Business Segments - Additional

Business Segments - Additional Information (Detail) - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Revenue generated from certain contracts with customers included in non-interest income	$ 7.3	$ 7.4
Payment Services [Member]
Rewards and Rebate Costs and Certain Partner Payments Included in Noninterest Income	$ 2.2	$ 2.2

Business Segments - Business Se

Business Segments - Business Segment Results (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Securities gains (losses), net	$ 73	$ 30	$ 57
Other intangibles	168	161	175
Total noninterest expense	12,785	12,464	12,790
Provision for credit losses	1,504	1,379	1,390
Net income	6,946	7,124	6,253
Net (income) loss attributable to noncontrolling interests	32	28	35
Net income attributable to U.S. Bancorp	6,914	7,096	$ 6,218
Corporate and Commercial Banking [Member]
Segment Reporting Information [Line Items]
Net interest income (taxable-equivalent basis)	2,871	2,936
Noninterest income	867	843
Total net revenue	3,738	3,779
Noninterest expense	1,607	1,591
Other intangibles	4	4
Total noninterest expense	1,611	1,595
Income before provision and income taxes	2,127	2,184
Provision for credit losses	78	65
Income before income taxes	2,049	2,119
Income taxes and taxable-equivalent adjustment	513	531
Net income	1,536	1,588
Net income attributable to U.S. Bancorp	1,536	1,588
Loans	96,608	93,854
Other earning assets	3,751	3,072
Goodwill	1,647	1,647
Other intangible assets	8	11
Assets	106,716	102,801
Noninterest-bearing deposits	29,152	32,938
Interest-bearing Deposits	72,780	69,913
Total deposits	101,932	102,851
Total U.S. Bancorp shareholders' equity	10,399	10,463
Consumer and Business Banking [Member]
Segment Reporting Information [Line Items]
Net interest income (taxable-equivalent basis)	6,261	6,156
Noninterest income	2,387	2,316
Total net revenue	8,648	8,472
Noninterest expense	5,285	5,232
Other intangibles	20	27
Total noninterest expense	5,305	5,259
Income before provision and income taxes	3,343	3,213
Provision for credit losses	310	232
Income before income taxes	3,033	2,981
Income taxes and taxable-equivalent adjustment	759	745
Net income	2,274	2,236
Net income attributable to U.S. Bancorp	2,274	2,236
Loans	144,595	140,875
Other earning assets	3,989	3,501
Goodwill	3,475	3,604
Other intangible assets	2,617	2,953
Assets	158,884	155,267
Noninterest-bearing deposits	27,876	27,691
Interest-bearing Deposits	129,289	124,934
Total deposits	157,165	152,625
Total U.S. Bancorp shareholders' equity	11,713	11,812
Wealth Management and Investment Services [Member]
Segment Reporting Information [Line Items]
Net interest income (taxable-equivalent basis)	1,157	1,131
Noninterest income	1,799	1,748
Total net revenue	2,956	2,879
Noninterest expense	1,752	1,778
Other intangibles	13	16
Total noninterest expense	1,765	1,794
Income before provision and income taxes	1,191	1,085
Provision for credit losses	(3)	(2)
Income before income taxes	1,194	1,087
Income taxes and taxable-equivalent adjustment	299	273
Net income	895	814
Net income attributable to U.S. Bancorp	895	814
Loans	10,080	9,364
Other earning assets	282	184
Goodwill	1,617	1,618
Other intangible assets	49	63
Assets	13,330	12,437
Noninterest-bearing deposits	13,195	14,006
Interest-bearing Deposits	62,031	56,000
Total deposits	75,226	70,006
Total U.S. Bancorp shareholders' equity	2,525	2,476
Payments Services [Member]
Segment Reporting Information [Line Items]
Net interest income (taxable-equivalent basis)	2,493	2,443
Noninterest income	3,707	3,599
Total net revenue	6,200	6,042
Noninterest expense	2,940	2,859
Other intangibles	131	114
Total noninterest expense	3,071	2,973
Income before provision and income taxes	3,129	3,069
Provision for credit losses	1,108	1,081
Income before income taxes	2,021	1,988
Income taxes and taxable-equivalent adjustment	505	497
Net income	1,516	1,491
Net income attributable to U.S. Bancorp	1,516	1,491
Loans	33,566	31,102
Other earning assets	348	291
Goodwill	2,839	2,570
Other intangible assets	538	406
Assets	39,743	36,912
Noninterest-bearing deposits	1,205	1,099
Interest-bearing Deposits	115	110
Total deposits	1,320	1,209
Total U.S. Bancorp shareholders' equity	7,084	6,629
Treasury and Corporate Support [Member]
Segment Reporting Information [Line Items]
Net interest income (taxable-equivalent basis)	373	369
Noninterest income	998	1,066
Securities gains (losses), net	73	30
Total net revenue	1,444	1,465
Noninterest expense	1,033	843
Total noninterest expense	1,033	843
Income before provision and income taxes	411	622
Provision for credit losses	11	3
Income before income taxes	400	619
Income taxes and taxable-equivalent adjustment	(325)	(376)
Net income	725	995
Net (income) loss attributable to noncontrolling interests	(32)	(28)
Net income attributable to U.S. Bancorp	693	967
Loans	5,837	5,506
Other earning assets	131,481	127,318
Assets	156,980	149,597
Noninterest-bearing deposits	2,435	2,462
Interest-bearing Deposits	8,734	4,309
Total deposits	11,169	6,771
Total U.S. Bancorp shareholders' equity	20,902	18,383
Consolidated Company [Member]
Segment Reporting Information [Line Items]
Net interest income (taxable-equivalent basis)	13,155	13,035
Noninterest income	9,758	9,572
Securities gains (losses), net	73	30
Total net revenue	22,986	22,637
Noninterest expense	12,617	12,303
Other intangibles	168	161
Total noninterest expense	12,785	12,464
Income before provision and income taxes	10,201	10,173
Provision for credit losses	1,504	1,379
Income before income taxes	8,697	8,794
Income taxes and taxable-equivalent adjustment	1,751	1,670
Net income	6,946	7,124
Net (income) loss attributable to noncontrolling interests	(32)	(28)
Net income attributable to U.S. Bancorp	6,914	7,096
Loans	290,686	280,701
Other earning assets	139,851	134,366
Goodwill	9,578	9,439
Other intangible assets	3,212	3,433
Assets	475,653	457,014
Noninterest-bearing deposits	73,863	78,196
Interest-bearing Deposits	272,949	255,266
Total deposits	346,812	333,462
Total U.S. Bancorp shareholders' equity	$ 52,623	$ 49,763

U.S. Bancorp (Parent Company) -

U.S. Bancorp (Parent Company) - Additional Information (Detail)	Dec. 31, 2019
Receivables
Loan Limits to the company or individual affiliate	10.00%
Maximum limit of loans to the Company and all affiliates	20.00%

U.S. Bancorp (Parent Company)_2

U.S. Bancorp (Parent Company) - Condensed Statement of Financial Position of Parent Company Only (Detail) - USD ($) $ in Millions		Dec. 31, 2019		Dec. 31, 2018	Dec. 31, 2017
Assets
Available-for-sale securities	[1]	$ 122,613	[2]	$ 66,115
Other assets		36,168		33,645
Total assets		495,426		467,374
Liabilities and Shareholders' Equity
Short-term funds borrowed		23,723		14,139	$ 16,651
Long-term debt		40,167		41,340
Other liabilities		17,137		14,763
Shareholders' equity		51,853		51,029
Total liabilities and equity		495,426		467,374
Parent Company [Member]
Assets
Due from banks, principally interest-bearing		11,583		9,969
Available-for-sale securities		1,631		921
Other assets		1,211		813
Total assets		71,386		68,163
Liabilities and Shareholders' Equity
Short-term funds borrowed		8
Long-term debt		18,602		16,291
Other liabilities		923		843
Shareholders' equity		51,853		51,029
Total liabilities and equity		71,386		68,163
Bank Subsidiaries [Member] \| Parent Company [Member]
Assets
Investments in subsidiaries		48,518		47,549
Advances to subsidiaries		3,850		3,800
Nonbank Subsidiaries [Member] \| Parent Company [Member]
Assets
Investments in subsidiaries		3,128		2,568
Advances to subsidiaries		$ 1,465		$ 2,543

[1]	Includes only collateral pledged by the Company where counterparties have the right to sell or pledge the collateral.
[2]	The weighted-average maturity of total available-for-sale and held-to-maturity investment securities was 5.3 years at December 31, 2018, with a corresponding weighted-average yield of 2.53 percent.

U.S. Bancorp (Parent Company)_3

U.S. Bancorp (Parent Company) - Condensed Income Statement of Parent Company Only (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income
Other income	$ 926	$ 910	$ 774
Expense
Interest expense	4,442	3,254	1,966
Other expense	1,618	1,709	2,529
Income before income taxes and equity in undistributed income of subsidiaries	8,594	8,678	7,517
Applicable income taxes	1,648	1,554	1,264
Net income attributable to U.S. Bancorp	6,914	7,096	6,218
Parent Company [Member]
Income
Interest from subsidiaries	317	220	159
Other income	25	33	41
Total net revenue	7,448	5,559	5,005
Expense
Interest expense	551	471	402
Other expense	140	133	124
Total expense	691	604	526
Income before income taxes and equity in undistributed income of subsidiaries	6,757	4,955	4,479
Applicable income taxes	(92)	(91)	(176)
Income of parent company	6,849	5,046	4,655
Equity in undistributed income of subsidiaries	65	2,050	1,563
Net income attributable to U.S. Bancorp	6,914	7,096	6,218
Bank Subsidiaries [Member] \| Parent Company [Member]
Income
Dividends from subsidiaries	7,100	5,300	4,800
Nonbank Subsidiaries [Member] \| Parent Company [Member]
Income
Dividends from subsidiaries	$ 6	$ 6	$ 5

U.S. Bancorp (Parent Company)_4

U.S. Bancorp (Parent Company) - Condensed Statement of Cash Flows of Parent Company Only (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Operating Activities
Net income attributable to U.S. Bancorp	$ 6,914	$ 7,096	$ 6,218
Adjustments to reconcile net income to net cash provided by operating activities
Other, net	458	1,010	(2,049)
Net cash provided by operating activities	4,889	10,564	6,472
Investing Activities
Other, net	(1,295)	(289)	(404)
Net cash used in investing activities	(21,560)	(8,977)	(12,126)
Financing Activities
Net increase (decrease) in short-term borrowings	9,584	(2,512)	2,688
Proceeds from issuance of long-term debt	9,899	12,078	9,434
Principal payments or redemption of long-term debt	(11,119)	(2,928)	(10,517)
Proceeds from issuance of preferred stock		565	993
Proceeds from issuance of common stock	88	86	159
Repurchase of preferred stock			(1,085)
Repurchase of common stock	(4,525)	(2,822)	(2,631)
Cash dividends paid on preferred stock	(302)	(274)	(284)
Cash dividends paid on common stock	(2,443)	(2,092)	(1,928)
Net cash used in financing activities	17,623	361	9,454
Cash and due from banks at beginning of period	21,453	19,505	15,705
Cash and due from banks at end of period	22,405	21,453	19,505
Parent Company [Member]
Operating Activities
Net income attributable to U.S. Bancorp	6,914	7,096	6,218
Adjustments to reconcile net income to net cash provided by operating activities
Equity in undistributed income of subsidiaries	(65)	(2,050)	(1,563)
Other, net	231	359	(125)
Net cash provided by operating activities	7,080	5,405	4,530
Investing Activities
Proceeds from sales and maturities of investment securities	291	39	100
Purchases of investment securities	(1,013)	(10)	(844)
Net (increase) decrease in short-term advances to subsidiaries	578	(488)	(790)
Long-term advances to subsidiaries	(2,600)	(500)
Principal collected on long-term advances to subsidiaries	2,550		500
Other, net	(341)	304	(12)
Net cash used in investing activities	(535)	(655)	(1,046)
Financing Activities
Net increase (decrease) in short-term borrowings	8	(1)	(21)
Proceeds from issuance of long-term debt	3,743	2,100	3,920
Principal payments or redemption of long-term debt	(1,500)	(1,500)	(1,250)
Proceeds from issuance of preferred stock		565	993
Proceeds from issuance of common stock	88	86	159
Repurchase of preferred stock			(1,085)
Repurchase of common stock	(4,525)	(2,822)	(2,631)
Cash dividends paid on preferred stock	(302)	(274)	(284)
Cash dividends paid on common stock	(2,443)	(2,092)	(1,928)
Net cash used in financing activities	(4,931)	(3,938)	(2,127)
Change in cash and due from banks	1,614	812	1,357
Cash and due from banks at beginning of period	9,969	9,157	7,800
Cash and due from banks at end of period	$ 11,583	$ 9,969	$ 9,157