BlackRock (BLK) 10-K28 Feb 202019 FY Annual reportFinancial data

Company Profile

Document and Entity Information

Document and Entity Information - USD ($) $ in Billions	12 Months Ended
Document and Entity Information - USD ($) $ in Billions	Dec. 31, 2019	Jan. 31, 2020	Jun. 30, 2019
Document Information [Line Items]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Entity Registrant Name	BlackRock, Inc.
Entity Central Index Key	0001364742
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		154,827,534
Entity Public Float			$ 71.9
Entity File Number	001-33099
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	32-0174431
Entity Address, Address Line One	55 East 52nd Street
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10055
City Area Code	212
Local Phone Number	810-5300
Document Annual Report	true
Document Transition Report	false
Entity Interactive Data Current	Yes
Documents Incorporated by Reference	The following documents are incorporated by reference herein: Portions of the definitive Proxy Statement of BlackRock, Inc. to be filed pursuant to Regulation 14A of the general rules and regulations under the Securities Exchange Act of 1934, as amended, for the 2020 annual meeting of stockholders to be held on May 21, 2020 (“Proxy Statement”) are incorporated by reference into Part III of this Form 10-K.
Common Stock, $.01 Par Value [Member]
Document Information [Line Items]
Trading Symbol	BLK
Title of 12(b) Security	Common Stock, $.01 par value
Security Exchange Name	NYSE
1.250% Notes due 2025 [Member]
Document Information [Line Items]
Trading Symbol	BLK25
Title of 12(b) Security	1.250% Notes due 2025
Security Exchange Name	NYSE

Consolidated Statements of Fina

Consolidated Statements of Financial Condition - USD ($) $ in Millions		Dec. 31, 2019	Dec. 31, 2018
Assets
Cash and cash equivalents	[1]	$ 4,829	$ 6,488
Accounts receivable		3,179	2,657
Investments	[1]	5,489	4,476
Separate account assets		102,844	90,285
Separate account collateral held under securities lending agreements		15,466	20,655
Property and equipment (net of accumulated depreciation of $880 and $750 at December 31, 2019 and 2018, respectively)		715	643
Intangible assets (net of accumulated amortization of $185 and $244 at December 31, 2019 and 2018, respectively)		18,369	17,839
Goodwill		14,562	13,526
Other assets	[1]	3,169	3,004
Total assets		168,622	159,573
Liabilities
Accrued compensation and benefits		2,057	1,988
Accounts payable and accrued liabilities		1,167	1,292
Borrowings		4,955	4,979
Separate account liabilities		102,844	90,285
Separate account collateral liabilities under securities lending agreements		15,466	20,655
Deferred income tax liabilities		3,734	3,571
Other liabilities	[1]	3,470	3,263
Total liabilities		133,693	126,033
Commitments and contingencies (Note 16)
Temporary equity
Redeemable noncontrolling interests		1,316	1,107
Permanent equity
Common stock, $0.01 par value; Shares authorized: 500,000,000 at December 31, 2019 and 2018; Shares issued: 171,252,185 at December 31, 2019 and 2018; Shares outstanding: 154,375,780 and 157,553,501 at December 31, 2019 and 2018, respectively		2	2
Additional paid-in capital		19,186	19,168
Retained earnings		21,662	19,282
Accumulated other comprehensive loss		(571)	(691)
Treasury stock, common, at cost (16,876,405 and 13,698,684 shares held at December 31, 2019 and 2018, respectively)		(6,732)	(5,387)
Total BlackRock, Inc. stockholders’ equity		33,547	32,374
Nonredeemable noncontrolling interests		66	59
Total permanent equity		33,613	32,433
Total liabilities, temporary equity and permanent equity		168,622	159,573
Series B Nonvoting Participating Preferred Stock [Member]
Permanent equity
Nonvoting participating preferred stock		0	0
Series C Nonvoting Participating Preferred Stock [Member]
Permanent equity
Nonvoting participating preferred stock		$ 0	$ 0

[1]	For 2019, cash and cash equivalents, investments, other assets and other liabilities include $131 million, $3,301 million, $68 million, and $820 million, respectively, related to consolidated variable interest entities (“VIEs”). For 2018, cash and cash equivalents, investments, other assets and other liabilities include $186 million, $2,680 million, $876 million, and $1,374 million, respectively, related to consolidated VIEs

Consolidated Statements of Fi_2

Consolidated Statements of Financial Condition (Parenthetical) - USD ($) $ in Millions		Dec. 31, 2019	Dec. 31, 2018
Property and equipment, accumulated depreciation		$ 880	$ 750
Intangible assets, accumulated amortization		$ 185	$ 244
Common stock, par value		$ 0.01	$ 0.01
Common stock, shares authorized		500,000,000	500,000,000
Common stock, shares issued		171,252,185	171,252,185
Common stock, shares outstanding		154,375,780	157,553,501
Preferred stock, par value		$ 0.01	$ 0.01
Treasury stock, common shares		16,876,405	13,698,684
Cash and cash equivalents	[1]	$ 4,829	$ 6,488
Investments	[1]	5,489	4,476
Other assets	[1]	3,169	3,004
Other liabilities	[1]	3,470	3,263
Consolidated Variable Interest Entities [Member]
Cash and cash equivalents		131	186
Investments		3,301	2,680
Other assets		68	876
Other liabilities		$ 820	$ 1,374
Series B Nonvoting Participating Preferred Stock [Member]
Preferred stock, par value		$ 0.01	$ 0.01
Preferred stock, shares authorized		150,000,000	150,000,000
Preferred stock, shares issued		823,188	823,188
Preferred stock, shares outstanding		823,188	823,188
Series C Nonvoting Participating Preferred Stock [Member]
Preferred stock, par value		$ 0.01	$ 0.01
Preferred stock, shares authorized		6,000,000	6,000,000
Preferred stock, shares issued		0	143,458
Preferred stock, shares outstanding		0	143,458

[1]	For 2019, cash and cash equivalents, investments, other assets and other liabilities include $131 million, $3,301 million, $68 million, and $820 million, respectively, related to consolidated variable interest entities (“VIEs”). For 2018, cash and cash equivalents, investments, other assets and other liabilities include $186 million, $2,680 million, $876 million, and $1,374 million, respectively, related to consolidated VIEs

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Millions	12 Months Ended
Consolidated Statements of Income - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenue
Total revenue	$ 14,539	$ 14,198	$ 13,600
Expense
Employee compensation and benefits	4,470	4,320	4,253
Distribution and servicing costs	1,685	1,675	1,663
Direct fund expense	978	998	895
General and administration	1,758	1,638	1,446
Restructuring charge		60
Amortization of intangible assets	97	50	89
Total expense	8,988	8,741	8,346
Operating income	5,551	5,457	5,254
Nonoperating income (expense)
Net gain (loss) on investments	342	1	161
Interest and dividend income	97	104	49
Interest expense	(203)	(184)	(205)
Total nonoperating income (expense)	236	(79)	5
Income before income taxes	5,787	5,378	5,259
Income tax expense	1,261	1,076	270
Net income	4,526	4,302	4,989
Net income (loss) attributable to noncontrolling interests	50	(3)	37
Net income attributable to BlackRock, Inc.	$ 4,476	$ 4,305	$ 4,952
Earnings per share attributable to BlackRock, Inc. common stockholders:
Basic	$ 28.69	$ 26.86	$ 30.54
Diluted	$ 28.43	$ 26.58	$ 30.12
Weighted-average common shares outstanding:
Basic	156,014,343	160,301,116	162,160,601
Diluted	157,459,546	161,948,732	164,415,035
Investment Advisory, Administration Fees and Securities Lending Revenue [Member]
Revenue
Total revenue	$ 11,777	$ 11,553	$ 10,868
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] \| Related Parties [Member]
Revenue
Total revenue	8,323	8,226	7,692
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] \| Other Third Parties [Member]
Revenue
Total revenue	3,454	3,327	3,176
Investment Advisory Performance Fees [Member]
Revenue
Total revenue	450	412	594
Technology Services Revenue [Member]
Revenue
Total revenue	974	785	657
Distribution Fees [Member]
Revenue
Total revenue	1,069	1,155	1,183
Advisory and Other Revenue [Member]
Revenue
Total revenue	$ 269	$ 293	$ 298

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement Of Income And Comprehensive Income [Abstract]
Net income		$ 4,526	$ 4,302	$ 4,989
Other comprehensive income (loss):
Foreign currency translation adjustments	[1]	120	(253)	284
Other comprehensive income (loss)		120	(253)	284
Comprehensive income		4,646	4,049	5,273
Less: Comprehensive income (loss) attributable to noncontrolling interests		50	(3)	37
Comprehensive income attributable to BlackRock, Inc.		$ 4,596	$ 4,052	$ 5,236

[1]	Amounts for 2019 and 2018 include gains from a net investment hedge of $11 million (net of tax expense of $3 million) and $30 million (net of tax expense of $10 million), respectively. Amount for 2017 includes a loss from a net investment hedge of $64 million (net of tax benefit of $38 million)

Consolidated Statements of Co_2

Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement Of Income And Comprehensive Income [Abstract]
Gain (loss) from net investment hedging, net of tax	$ 11	$ 30	$ (64)
Gain (loss) from net investment hedging, tax (expense) benefit	$ (3)	$ (10)	$ 38

Consolidated Statements of Chan

Consolidated Statements of Changes in Equity - USD ($) $ in Millions	Total	Additional Paid-in Capital [Member]	[1]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock Common [Member]	Total BlackRock Stockholders' Equity [Member]	Nonredeemable Noncontrolling Interests [Member]	Redeemable Noncontrolling Interests / Temporary Equity [Member]
Balance at Dec. 31, 2016	$ 29,140	$ 19,339		$ 13,650	$ (716)	$ (3,185)	$ 29,088	$ 52	$ 194
Net income	4,954			4,952			4,952	2	35
Dividends declared	(1,662)			(1,662)			(1,662)
Stock-based compensation	542	542					542
PNC preferred stock capital contribution	193	193					193
Retirement of preferred stock	(193)	(193)					(193)
Issuance of common shares related to employee stock transactions	13	(626)				639	13
Employee tax withholdings related to employee stock transactions	(321)					(321)	(321)
Shares repurchased	(1,100)					(1,100)	(1,100)
Subscriptions (redemptions/distributions) — noncontrolling interest holders	(18)							(18)	482
Net consolidations (deconsolidations) of sponsored investment funds	14							14	(295)
Other comprehensive income (loss)	284				284		284
Adoption of new accounting pronouncement	2	3		(1)			2
Balance at Dec. 31, 2017	31,848	19,258		16,939	(432)	(3,967)	31,798	50	416
Net income	4,305			4,305			4,305		(3)
Dividends declared	(1,968)			(1,968)			(1,968)
Stock-based compensation	564	564					564
PNC preferred stock capital contribution	58	58					58
Retirement of preferred stock	(58)	(58)					(58)
Issuance of common shares related to employee stock transactions	15	(652)				667	15
Employee tax withholdings related to employee stock transactions	(427)					(427)	(427)
Shares repurchased	(1,660)					(1,660)	(1,660)
Subscriptions (redemptions/distributions) — noncontrolling interest holders	9							9	1,254
Net consolidations (deconsolidations) of sponsored investment funds									(560)
Other comprehensive income (loss)	(253)				(253)		(253)
Adoption of new accounting pronouncement				6	(6)
Balance at Dec. 31, 2018	32,433	19,170		19,282	(691)	(5,387)	32,374	59	1,107
Net income	4,483			4,476			4,476	7	43
Dividends declared	(2,096)			(2,096)			(2,096)
Stock-based compensation	567	567					567
PNC preferred stock capital contribution	60	60					60
Retirement of preferred stock	(60)	(60)					(60)
Issuance of common shares related to employee stock transactions	17	(549)				566	17
Employee tax withholdings related to employee stock transactions	(245)					(245)	(245)
Shares repurchased	(1,666)					(1,666)	(1,666)
Subscriptions (redemptions/distributions) — noncontrolling interest holders	2							2	1,456
Net consolidations (deconsolidations) of sponsored investment funds	(2)							(2)	(1,290)
Other comprehensive income (loss)	120				120		120
Balance at Dec. 31, 2019	$ 33,613	$ 19,188		$ 21,662	$ (571)	$ (6,732)	$ 33,547	$ 66	$ 1,316

[1]	Amounts include $2

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Equity (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Additional Paid-in Capital, value of stock	$ 33,613	$ 32,433	$ 31,848
Common Stock [Member]
Additional Paid-in Capital, value of stock	$ 2	$ 2	$ 2
Dividends declared, amount per share	$ 13.20	$ 12.02	$ 10

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Operating activities
Net income	$ 4,526	$ 4,302	$ 4,989
Adjustments to reconcile net income to net cash provided by/(used in) operating activities:
Depreciation and amortization	405	220	240
Stock-based compensation	567	564	542
Deferred income tax expense (benefit)	17	(226)	(1,221)
Contingent consideration fair value adjustments	53	65	8
Other gains	(30)	(50)
Net (gains) losses within consolidated sponsored investment products	(254)	149	(218)
Net (purchases) proceeds within consolidated sponsored investment products	(1,746)	(1,938)	(570)
(Earnings) losses from equity method investees	(116)	(94)	(122)
Distributions of earnings from equity method investees	70	30	35
Changes in operating assets and liabilities:
Accounts receivable	(433)	4	(521)
Investments, trading	(21)	179	146
Other assets	141	(223)	(173)
Accrued compensation and benefits	58	(230)	276
Accounts payable and accrued liabilities	(111)	43	308
Other liabilities	(242)	280	231
Net cash provided by/(used in) operating activities	2,884	3,075	3,950
Investing activities
Purchases of investments	(693)	(327)	(489)
Proceeds from sales and maturities of investments	417	449	166
Distributions of capital from equity method investees	136	24	32
Net consolidations (deconsolidations) of sponsored investment funds	(110)	(51)	(60)
Acquisitions, net of cash acquired	(1,510)	(699)	(102)
Purchases of property and equipment	(254)	(204)	(155)
Net cash provided by/(used in) investing activities	(2,014)	(808)	(608)
Financing activities
Proceeds from long-term borrowings	992		697
Repayments of long-term borrowings	(1,000)		(700)
Cash dividends paid	(2,096)	(1,968)	(1,662)
Repurchases of common stock	(1,911)	(2,087)	(1,421)
Net proceeds from (repayments of) borrowings by consolidated sponsored investment products	111	40
Net (redemptions/distributions paid)/subscriptions received from noncontrolling interest holders	1,458	1,263	464
Other financing activities	(137)	(13)	(8)
Net cash provided by/(used in) financing activities	(2,583)	(2,765)	(2,630)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	54	(93)	192
Net increase (decrease) in cash, cash equivalents and restricted cash	(1,659)	(591)	904
Cash, cash equivalents and restricted cash, beginning of year	6,505	7,096	6,192
Cash, cash equivalents and restricted cash, end of year	4,846	6,505	7,096
Supplemental disclosure of cash flow information:
Interest	193	177	205
Income taxes (net of refunds)	1,168	1,159	1,124
Supplemental schedule of noncash investing and financing transactions:
Issuance of common stock	549	652	626
PNC preferred stock capital contribution	60	58	193
Increase (decrease) in noncontrolling interests due to net consolidation (deconsolidation) of sponsored investment funds	$ (1,292)	$ (560)	$ (281)

Business Overview

Business Overview	12 Months Ended
Business Overview	Dec. 31, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Business Overview	1. Business Overview BlackRock, Inc. (together, with its subsidiaries, unless the context otherwise indicates, “BlackRock” or the “Company”) is a leading publicly traded investment management firm providing a broad range of investment and technology services to institutional and retail clients worldwide. BlackRock’s diverse platform of alpha-seeking active, index and cash management investment strategies across asset classes enables the Company to tailor investment outcomes and asset allocation solutions for clients. Product offerings include single- and multi-asset portfolios investing in equities, fixed income, alternatives and money market instruments. Products are offered directly and through intermediaries in a variety of vehicles, including open-end and closed-end mutual funds, iShares ® Aladdin ® At December 31, 2019, The PNC Financial Services Group, Inc. (“PNC”) held 22.0% of the Company’s voting common stock and 22.4% of the Company’s capital stock, which includes outstanding common and nonvoting preferred stock.

Significant Accounting Policies

Significant Accounting Policies	12 Months Ended
Significant Accounting Policies	Dec. 31, 2019
Accounting Policies [Abstract]
Significant Accounting Policies	2. Significant Accounting Policies Basis of Presentation These consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) and include the accounts of the Company and its controlled subsidiaries. Noncontrolling interests (“NCI”) on the consolidated statements of financial condition represents the portion of consolidated sponsored investment funds in which the Company does not have direct equity ownership. Accounts and transactions between consolidated entities have been eliminated. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expense during the reporting periods. Actual results could differ from those estimates. Certain prior period presentations and disclosures, while not required to be recast, were reclassified to ensure comparability with current period classifications. The prior year amounts related to the Company’s consolidated variable interest entities have been reclassified to cash and cash equivalents, investments, other assets and other liabilities within the Company’s consolidated statement of financial condition for consistency with the current year’s presentation. In addition, conforming changes were made to the prior year amounts within the statements of cash flows and the related notes to the consolidated financial statements. The reclassifications had no effect on the previously reported total stockholders’ equity, results of operations, or cash flows from operating, investing or financing activities. Accounting Pronouncements Adopted in 2019 Leases . In February 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-02, , and several amendments (collectively, “ASU 2016-02”), which requires lessees to recognize assets and liabilities arising from most operating leases on the consolidated statements of financial condition. The Company adopted ASU 2016-02 on its effective date of January 1, 2019 on a modified retrospective basis and elected not to apply ASU 2016-02 to the comparative periods presented. Under this transition method, any cumulative effect adjustment is recognized in the opening balance of retained earnings in the period of adoption. The Company elected the package of practical expedients to alleviate certain operational complexities related to the adoption, which allowed the Company to carry forward the existing lease classification. The Company elected to account for lease and non-lease components as a single component for its leases. The Company also elected the short-term lease practical expedient. Consequently, leases with an initial term of 12 months or less are not recorded on the consolidated statement of financial condition. Upon adoption of ASU 2016-02, the Company recorded a net increase of approximately $0.7 billion in its assets and liabilities related to the right-of-use (“ROU”) asset and lease liability for its operating leases. The adoption of ASU 2016-02 did not have a material impact on the consolidated statement of income or cash flows. See Note 13, Leases Cash and Cash Equivalents . Cash and cash equivalents primarily consists of cash, money market funds and short-term, highly liquid investments with original maturities of three months or less in which the Company is exposed to market and credit risk. Cash and cash equivalent balances that are legally restricted from use by the Company are recorded in other assets on the consolidated statements of financial condition. Cash balances maintained by consolidated VIEs and voting rights entities (“VREs”) are not considered legally restricted and are included in cash and cash equivalents on the consolidated statements of financial condition Investments Investments in Debt Securities. The Company classifies debt investments as available-for-sale, held-to-maturity or trading based on the Company’s intent to sell the security or, its intent and ability to hold the debt security to maturity. Available-for-sale securities are those securities that are not classified as trading or held-to-maturity. Available-for-sale securities include certain investments in collateralized loan obligations (“CLOs”) and are carried at fair value on the consolidated statements of financial condition with changes in fair value recorded in accumulated other comprehensive income (loss) (“AOCI”) within stockholders’ equity in the period of the change. Upon the disposition of an available-for-sale security, the Company reclassifies the gain or loss on the security from AOCI to nonoperating income (expense) on the consolidated statements of income. Held-to-maturity securities are purchased with the positive intent and ability to be held to maturity and are recorded at amortized cost on the consolidated statements of financial condition. Trading securities are those investments that are purchased principally for the purpose of selling them in the near term. Trading securities are carried at fair value on the consolidated statements of financial condition with changes in fair value recorded in nonoperating income (expense) on the consolidated statements of income. Trading securities include certain investments in CLOs for which the fair value option is elected in order to reduce operational complexity of bifurcating embedded derivatives. Investments in Equity Securities. Equity securities are generally carried at fair value on the consolidated statements of financial condition with changes in the fair value recorded through net income (“FVTNI”) within nonoperating income (expense). For nonmarketable equity securities, the Company generally elects to apply the practicality exception to fair value measurement, under which such securities will be measured at cost, less impairment, plus or minus observable price changes for identical or similar securities of the same issuer with such changes recorded in the consolidated statements of income. Dividends received are recorded as dividend income within nonoperating income (expense). Equity Method. The Company applies the equity method of accounting for equity investments where the Company does not consolidate the investee, but can exert significant influence over the financial and operating policies of the investee. The Company’s share of the investee’s underlying net income or loss is recorded as net gain (loss) on investments within nonoperating income (expense) and as other revenue for certain corporate minority investments since such investees are considered to be an extension of the Company’s core business. The Company’s share of net income of the investee is recorded based upon the most current information available at the time, which may precede the date of the consolidated statement of financial condition. Distributions received reduce the Company’s carrying value of the investee and the cost basis if deemed to be a return of capital. Impairments of Investments. Management periodically assesses equity method, available-for-sale and held-to-maturity investments for other-than-temporary impairment (“OTTI”). If an OTTI exists, an impairment charge would be recorded for the excess of the carrying amount of the investment over its estimated fair value in the consolidated statements of income. For equity method investments and held-to-maturity investments, if circumstances indicate that an OTTI may exist, the investments are evaluated using market values, where available, or the expected future cash flows of the investment. For the Company’s investments in CLOs, the Company reviews cash flow estimates over the life of each CLO investment. On a quarterly basis, if the present value of the estimated future cash flows is lower than the carrying value of the investment and there is an adverse change in estimated cash flows, an impairment is considered to be other-than-temporary. In addition, for nonmarketable equity securities that are accounted for under the measurement alternative to fair value, the Company applies the impairment model that does not require the Company to consider whether the impairment is other-than-temporary. Consolidation. The Company performs an analysis for investment products to determine if the product is a VIE or a VRE. Assessing whether an entity is a VIE or a VRE involves judgment and analysis. Factors considered in this assessment include the entity’s legal organization, the entity’s capital structure and equity ownership, and any related party or de facto agent implications of the Company’s involvement with the entity. Investments that are determined to be VIEs are consolidated if the Company is the primary beneficiary (“PB”) of the entity. VREs are typically consolidated if the Company holds the majority voting interest. Upon the occurrence of certain events (such as contributions and redemptions, either by the Company, or third parties, or amendments to the governing documents of the Company’s investment products), management reviews and reconsiders its previous conclusion regarding the status of an entity as a VIE or a VRE. Additionally, management continually reconsiders whether the Company is deemed to be a VIE’s PB that consolidates such entity. Consolidation of Variable Interest Entities . Certain investment products for which a controlling financial interest is achieved through arrangements that do not involve or are not directly linked to voting interests are deemed VIEs. BlackRock reviews factors, including whether or not i) the entity has equity at risk that is sufficient to permit the entity to finance its activities without additional subordinated support from other parties and ii) the equity holders at risk have the obligation to absorb losses, the right to receive residual returns, and the right to direct the activities of the entity that most significantly impact the entity’s economic performance, to determine if the investment product is a VIE. BlackRock re-evaluates such factors as facts and circumstances change. The PB of a VIE is defined as the variable interest holder that has a controlling financial interest in the VIE. A controlling financial interest is defined as (i) the power to direct the activities of the VIE that most significantly impact its economic performance and (ii) the obligation to absorb losses of the entity or the right to receive benefits from the entity that potentially could be significant to the VIE. The Company generally consolidates VIEs in which it holds an economic interest of 10% or greater and deconsolidates such VIEs once equity ownership falls below 10%. Consolidation of Voting Rights Entities . BlackRock is required to consolidate an investee to the extent that BlackRock can exert control over the financial and operating policies of the investee, which generally exists if there is a greater than 50% voting equity interest. Retention of Specialized Investment Company Accounting Principles. Upon consolidation of sponsored investment funds, the Company retains the specialized investment company accounting principles of the underlying funds. All of the underlying investments held by such consolidated sponsored investment funds are carried at fair value with corresponding changes in the investments’ fair values reflected in nonoperating income (expense) on the consolidated statements of income. When the Company no longer controls these funds due to reduced ownership percentage or other reasons, the funds are deconsolidated and accounted for as an equity method investment or equity securities FVTNI if the Company still maintains an investment. Separate Account Assets and Liabilities . Separate account assets are maintained by BlackRock Life Limited, a wholly owned subsidiary of the Company, which is a registered life insurance company in the United Kingdom, and represent segregated assets held for purposes of funding individual and group pension contracts. The life insurance company does not underwrite any insurance contracts that involve any insurance risk transfer from the insured to the life insurance company. The separate account assets primarily include equity securities, debt securities, money market funds and derivatives. The separate account assets are not subject to general claims of the creditors of BlackRock. These separate account assets and the related equal and offsetting liabilities are recorded as separate account assets and separate account liabilities on the consolidated statements of financial condition. The net investment income attributable to separate account assets supporting individual and group pension contracts accrues directly to the contract owner and is not reported on the consolidated statements of income. While BlackRock has no economic interest in these separate account assets and liabilities, BlackRock earns policy administration and management fees associated with these products, which are included in investment advisory, administration fees and securities lending revenue on the consolidated statements of income. Separate Account Collateral Assets Held and Liabilities Under Securities Lending Agreements. The Company facilitates securities lending arrangements whereby securities held by separate accounts maintained by BlackRock Life Limited are lent to third parties under global master securities lending agreements. In exchange, the Company receives legal title to the collateral with minimum values generally ranging from approximately 102% to 112% of the value of the securities lent in order to reduce counterparty risk. The required collateral value is calculated on a daily basis. The global master securities lending agreements provide the Company the right to request additional collateral or, in the event of borrower default, the right to liquidate collateral. The securities lending transactions entered into by the Company are accompanied by an agreement that entitles the Company to request the borrower to return the securities at any time; therefore, these transactions are not reported as sales. The Company records on the consolidated statements of financial condition the cash and noncash collateral received under these BlackRock Life Limited securities lending arrangements as its own asset in addition to an equal and offsetting collateral liability for the obligation to return the collateral. The securities lending revenue earned from lending securities held by the separate accounts is included in investment advisory, administration fees and securities lending revenue on the consolidated statements of income. Property and Equipment . Property and equipment are recorded at cost less accumulated depreciation. Depreciation is generally determined by cost less any estimated residual value using the straight-line method over the estimated useful lives of the various classes of property and equipment. Leasehold improvements are amortized using the straight-line method over the shorter of the estimated useful life or the remaining lease term. The Company capitalizes certain costs incurred in connection with developing or obtaining software within property and equipment. Capitalized software costs are amortized, beginning when the software product is ready for its intended use, over the estimated useful life of the software of approximately three years. Goodwill and Intangible Assets . Goodwill represents the cost of a business acquisition in excess of the fair value of the net assets acquired. The Company has determined that it has one reporting unit for goodwill impairment testing purposes, the consolidated BlackRock single operating segment, which is consistent with internal management reporting and management's oversight of operations. In its assessment of goodwill for impairment, the Company considers such factors as the book value and market capitalization of the Company. On a quarterly basis, the Company considers if triggering events have occurred that may indicate a potential goodwill impairment. If a triggering event has occurred, the Company performs assessments, which may include reviews of significant valuation assumptions, to determine if goodwill may be impaired. The Company performs an impairment assessment of its goodwill at least annually, as of July 31 st Intangible assets are comprised of indefinite-lived intangible assets and finite-lived intangible assets acquired in a business acquisition. The value of contracts to manage assets in proprietary open-end funds and collective trust funds and certain other commingled products without a specified termination date is generally classified as indefinite-lived intangible assets. The assignment of indefinite lives to such contracts primarily is based upon the following: (i) the assumption that there is no foreseeable limit on the contract period to manage these products; (ii) the Company expects to, and has the ability to, continue to operate these products indefinitely; (iii) the products have multiple investors and are not reliant on a single investor or small group of investors for their continued operation; (iv) current competitive factors and economic conditions do not indicate a finite life; and (v) there is a high likelihood of continued renewal based on historical experience. In addition, trade names/trademarks are considered indefinite-lived intangible assets when they are expected to generate cash flows indefinitely. Indefinite-lived intangible assets and goodwill are not amortized. Finite-lived management contracts, which relate to acquired separate accounts and funds and investor/customer relationships, and technology-related assets that are expected to contribute to the future cash flows of the Company for a specified period of time, are amortized over their remaining useful lives. The Company performs assessments to determine if any intangible assets are potentially impaired and whether the indefinite-lived and finite-lived classifications are still appropriate at least annually, as of July 31 st In evaluating whether it is more likely than not that the fair value of indefinite-lived intangibles is less than its carrying value, BlackRock assesses various significant qualitative factors, including assets under management (“AUM”), revenue basis points, projected AUM growth rates, operating margins, tax rates and discount rates. In addition, the Company considers other factors, including (i) macroeconomic conditions such as a deterioration in general economic conditions, limitations on accessing capital, fluctuations in foreign exchange rates, or other developments in equity and credit markets; (ii) industry and market considerations such as a deterioration in the environment in which the entity operates, an increased competitive environment, a decline in market-dependent multiples or metrics, a change in the market for an entity’s services, or regulatory, legal or political developments; and (iii) entity-specific events, such as a change in management or key personnel, overall financial performance and litigation that could affect significant inputs used to determine the fair value of the indefinite-lived intangible asset. If an indefinite-lived intangible is determined to be more likely than not impaired, then the fair value of the asset is compared with its carrying value and any excess of the carrying value over the fair value would be recognized as an expense in the period in which the impairment occurs. For finite-lived intangible assets, if potential impairment circumstances are considered to exist, the Company will perform a recoverability test using an undiscounted cash flow analysis. Actual results could differ from these cash flow estimates, which could materially impact the impairment conclusion. If the carrying value of the asset is determined not to be recoverable based on the undiscounted cash flow test, the difference between the carrying value of the asset and its current fair value would be recognized as an expense in the period in which the impairment occurs. Noncontrolling Interests. The Company reports noncontrolling interests as equity, separate from the parent’s equity, on the consolidated statements of financial condition. In addition, the Company’s consolidated net income on the consolidated statements of income includes the income (loss) attributable to noncontrolling interest holders of the Company’s consolidated sponsored investment products. Income (loss) attributable to noncontrolling interests is not adjusted for income taxes for consolidated sponsored investment products that are treated as pass-through entities for tax purposes. Classification and Measurement of Redeemable Securities. The Company includes redeemable noncontrolling interests related to certain consolidated sponsored investment products in temporary equity on the consolidated statements of financial condition. Treasury Stock . The Company records common stock purchased for treasury at cost. At the date of subsequent reissuance, the treasury stock account is reduced by the cost of such stock using the average cost method. Revenue Recognition. Revenue is recognized upon transfer of control of promised services to customers in an amount to which the Company expects to be entitled in exchange for those services. The Company enters into contracts that can include multiple services, which are accounted for separately if they are determined to be distinct. Consideration for the Company’s services is generally in the form of variable consideration because the amount of fees is subject to market conditions that are outside of the Company’s influence. The Company includes variable consideration in revenue when it is no longer probable of significant reversal, i.e. when the associated uncertainty is resolved. For some contracts with customers, the Company has discretion to involve a third party in providing services to the customer. Generally, the Company is deemed to be the principal in these arrangements because the Company controls the promised services before they are transferred to customers, and accordingly presents the revenue gross of related costs. Investment Advisory, Administration Fees and Securities Lending Revenue. Investment advisory and administration fees are recognized as the services are performed over time because the customer is receiving and consuming the benefits as they are provided by the Company. Fees are primarily based on agreed-upon percentages of AUM and recognized for services provided during the period, which are distinct from services provided in other periods. Such fees are affected by changes in AUM, including market appreciation or depreciation, foreign exchange translation and net inflows or outflows. Investment advisory and administration fees for investment funds are shown net of fee waivers. In addition, the Company may contract with third parties to provide sub-advisory services on its behalf. The Company presents the investment advisory fees and associated costs to such third-party advisors on a gross basis where it is deemed to be the principal and on a net basis where it is deemed to be the agent. Management judgment involved in making these assessments is focused on ascertaining whether the Company is primarily responsible for fulfilling the promised service. The Company earns revenue by lending securities on behalf of clients, primarily to highly rated banks and broker-dealers. Revenue is recognized over time as services are performed. Generally, the securities lending fees are shared between the Company and the funds or other third-party accounts managed by the Company from which the securities are borrowed. Investment Advisory Performance Fees / Carried Interest. The Company receives investment advisory performance fees, including incentive allocations (carried interest) from certain actively managed investment funds and certain separately managed accounts. These performance fees are dependent upon exceeding specified relative or absolute investment return thresholds, which may vary by product or account, and include monthly, quarterly, annual or longer measurement periods. Performance fees, including carried interest, are recognized when it is determined that they are no longer probable of significant reversal (such as upon the sale of a fund’s investment or when the amount of AUM becomes known as of the end of a specified measurement period). Given the unique nature of each fee arrangement, contracts with customers are evaluated on an individual basis to determine the timing of revenue recognition. Significant judgement is involved in making such determination. Performance fees typically arise from investment management services that began in prior reporting periods. Consequently, a portion of the fees the Company recognizes may be partially related to the services performed in prior periods that meet the recognition criteria in the current period. At each reporting date, the Company considers various factors in estimating performance fees to be recognized, including carried interest. These factors include but are not limited to whether: (1) the fees are dependent on the market and thus are highly susceptible to factors outside the Company’s influence; (2) the fees have a large number and a broad range of possible amounts; and (3) the funds or separately managed accounts have the ability to invest or reinvest their sales proceeds. The Company is allocated carried interest from certain alternative investment products upon exceeding performance thresholds. The Company may be required to reverse/return all, or part, of such carried interest allocations/distributions depending upon future performance of these funds. Carried interest subject to such clawback provisions is recorded in investments or cash and cash equivalents t o the extent that it is distributed, on its consolidated statements of financial condition . The Company records a liability for deferred carried interest to the extent it receives cash or capital allocations related to carried interest prior to meeting the revenue recognition criteria. A portion of the deferred carried interest may also be paid to certain employees. The ultimate timing of the recognition of performance fee revenue and related compensation expense, if any, for these products is unknown. Technology services revenue. The Company offers investment management technology systems, risk management services, wealth management and digital distribution tools, all on a fee basis. Clients include banks, insurance companies, official institutions, pension funds, asset managers, retail distributors and other investors. Fees earned for technology services are primarily recorded as services are performed over time and are generally determined using the value of positions on the platform, or a fixed-rate basis. Revenue derived from the sale of software licenses is recognized upon the granting of access rights. Distribution Fees. The Company earns distribution and service fees for distributing investment products and providing ongoing shareholder support services to investment portfolios. Distribution fees are passed-through to third-party distributors, which perform various fund distribution services and shareholder servicing of certain funds on the Company’s behalf, and are recognized as distribution and servicing costs. The Company presents distribution fees and related distribution and servicing costs incurred on a gross basis. Distribution fees primarily consist of ongoing distribution fees, shareholder servicing fees and upfront sales commissions for serving as the principal underwriter and/or distributor for certain managed mutual funds. The service of distribution is satisfied at the point in time when an investor makes an investment in a share class of the managed mutual funds. Fees are generally considered variable consideration because they are based on the value of AUM and are uncertain on trade date. Accordingly, the Company recognizes distribution fees over the investment period as the amounts become known and the portion recognized in the current period may relate to distribution services performed in prior periods. Upfront sales commissions are recognized on a trade date basis. Shareholder servicing fees are based on AUM and recognized in revenue as the services are performed. Advisory and other revenue. Advisory and other revenue primarily includes fees earned for advisory services, fees earned for transition management services primarily comprised of commissions recognized in connection with buying and selling securities on behalf of customers, and equity method investment earnings related to certain corporate minority investments. Advisory services fees are determined using fixed-rate fees and are recognized over time as the related services are completed. Commissions related to transition management services are recorded on a trade-date basis as transactions occur. Stock-based Compensation . The Company recognizes compensation cost for equity classified awards based on the grant-date fair value of the award. The compensation cost is recognized over the period during which an employee is required to provide service (usually the vesting period) in exchange for the stock-based award. The Company measures the grant-date fair value of restricted stock units (“RSUs”) using the Company’s share price on the date of grant. For employee share options and instruments with market conditions, the Company uses pricing models. Stock option awards may have performance, market and/or service conditions. If an equity award is modified after the grant-date, incremental compensation cost is recognized for an amount equal to the excess of the fair value of the modified award over the fair value of the original award immediately before the modification. Awards under the Company’s stock-based compensation plans vest over various periods. Compensation cost is recorded by the Company on a straight-line basis over the requisite service period for each separate vesting portion of the award as if the award is, in-substance, multiple awards and is adjusted for actual forfeitures as they occur. The Company amortizes the grant-date fair value of stock-based compensation awards made to retirement-eligible employees over the requisite service period. Upon notification of retirement, the Company accelerates the unamortized portion of the award over the contractually required retirement notification period. The Company recognizes all excess tax benefits and deficiencies in income tax expense on the consolidated statements of income, which results in volatility of income tax expense as a result of fluctuations in the Company’s stock price. Accordingly, the Company recorded a discrete income tax benefit of $23 million, $64 million and $151 million during 2019, 2018 and 2017, respectively, for vested RSUs where the grant date stock price was lower than the vesting date stock price. The Company accounts for forfeitures as they occur. Distribution and Servicing Costs . Distribution and servicing costs include payments to third parties, primarily associated with distribution and servicing of client investments in certain BlackRock products. Distribution and servicing costs are expensed when incurred. Direct Fund Expense . Direct fund expense, which is expensed as incurred, primarily consists of third-party nonadvisory expense incurred by BlackRock related to certain funds for the use of certain index trademarks, reference data for certain indices, custodial services, fund administration, fund accounting, transfer agent services, shareholder reporting services, audit and tax services as well as other fund-related expense directly attributable to the nonadvisory operations of the fund. Leases . The Company determines if a contract is a lease or contains a lease at inception. The Company accounts for its office facility leases as operating leases, which may include escalation clauses that are based on an index or market rate. The Company accounts for lease and non-lease components as a single component for its leases. The Company elected the short-term lease exception for l eases with an initial term of 12 months or less. Consequently, such leases are not recorded on the consolidated statement of financial condition. The Company’s lease terms include options to extend or terminate the lease when it is reasonably certain they will be exercised or not, respectively. Fixed lease payments are included in ROU assets and lease liabilities within

Acquisition

Acquisition	12 Months Ended
Acquisition	Dec. 31, 2019
Business Combinations [Abstract]
Acquisition	3. Acquisition On May 10, 2019, the Company acquired 100% of the equity interests of eFront Holding SAS (“eFront Transaction” or “eFront”), a leading alternative investment management software and solutions provider for approximately $1.3 billion, excluding the settlement of eFront’s outstanding debt. The acquisition of eFront expands Aladdin The purchase price was funded through a combination of existing cash and issuance of commercial paper (subsequently repaid with existing cash) and long-term notes in April 2019. See Note 15, Borrowings The purchase price for the eFront Transaction was allocated to the assets acquired and liabilities assumed based upon their estimated fair values at the date of the transaction. The goodwill recognized in connection with the acquisition is non-deductible for tax purposes and is primarily attributable to anticipated synergies from the transaction. G oodwill, finite-lived intangible assets and deferred income tax liabilities were retrospectively adjusted to reflect new information obtained about facts that existed as of May 10, 2019, the eFront acquisition date. There was no material change to the consolidated statements of income for the year ended Dec ember 3 1 , 2019 as a result of these adjustments. A summary of the initial and revised fair values of the assets acquired and liabilities assumed in this acquisition is as follows (1) : Initial Revised Estimate of Estimate of (in millions) Fair Value Fair Value Accounts receivable $ 65 $ 61 Finite-lived intangible assets: Customer relationships (2) 452 400 Technology-related (3) 205 203 Trade name (4) 21 14 Goodwill 990 1,044 Other assets 31 49 Deferred income tax liabilities (194 ) (146 ) Other liabilities assumed (64 ) (125 ) Total consideration, net of cash acquired $ 1,506 $ 1,500 Summary of consideration, net of cash acquired: Cash paid including settlement of outstanding debt of approximately $0.2 billion $ 1,555 $ 1,555 Cash acquired (49 ) (55 ) Total consideration, net of cash acquired $ 1,506 $ 1,500 (1) At this time, the Company does not expect additional material changes to the value of the assets acquired or liabilities assumed in conjunction with the transaction. (2) The fair value was determined based on the excess earnings method (a Level 3 input), has a weighted-average estimated useful life of approximately 10 years and is amortized using the accelerated amortization method. (3) The fair value was determined based upon a relief from royalty method (a Level 3 input), has a weighted-average estimated useful life of approximately eight years and is amortized using the accelerated amortization method. (4) The fair value was determined using a relief from royalty method (a Level 3 input), has an estimated useful life of approximately four years and is amortized using the accelerated amortization method. Finite-lived intangible assets in the table above are amortized over their estimated useful lives, which range from four to 10 years. Amortization expense related to the finite-lived intangible assets was $38 million for the year ended December 31, 2019. The finite-lived intangible assets had a weighted-average remaining useful life of approximately nine years with remaining amortization expense as follows: (in millions) Year Amount 2020 $ 60 2021 64 2022 68 2023 69 2024 71 Thereafter 247 Total $ 579 For the year ended December 31, 2019, eFront contributed $96 million of revenue and did not have a material impact to net income attributable to BlackRock, Inc. Consequently, the Company has not presented pro forma combined results of operations for this acquisition.

Cash, Cash Equivalents and Rest

Cash, Cash Equivalents and Restricted Cash	12 Months Ended
Cash, Cash Equivalents and Restricted Cash	Dec. 31, 2019
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents [Abstract]
Cash, Cash Equivalents and Restricted Cash	4. Cash, Cash Equivalents and Restricted Cash The following table provides a reconciliation of cash and cash equivalents reported within the consolidated statements of financial condition to the cash, cash equivalents, and restricted cash reported within the consolidated statements of cash flows. December 31, December 31, (in millions) 2019 2018 Cash and cash equivalents $ 4,829 $ 6,488 Restricted cash included in other assets 17 17 Total cash, cash equivalents and restricted cash $ 4,846 $ 6,505

Investments

Investments	12 Months Ended
Investments	Dec. 31, 2019
Investments Debt And Equity Securities [Abstract]
Investments	5. Investments A summary of the carrying value of total investments is as follows: (in millions) December 31, 2019 December 31, 2018 Debt securities: Held-to-maturity investments $ 249 $ 188 Trading securities 1,249 1,660 Total debt securities 1,498 1,848 Equity securities at FVTNI 1,926 1,021 Equity method investments (1) 943 781 Bank loans 204 84 Federal Reserve Bank stock (2) 93 92 Carried interest (3) 528 387 Other investments (4) 297 263 Total investments $ 5,489 $ 4,476 (1) (2) (3) (4) Available-for-Sale Investments A summary of sale activity of available-for-sale during 2019, 2018 and 2017 is shown below. Year ended December 31, (in millions) 2019 2018 2017 Sales proceeds $ — $ 173 $ — Net realized gain (loss): Gross realized gains $ — $ — $ — Gross realized losses — — — Net realized gain (loss) $ — $ — $ — There were no available-for-sale investments at both December 31, 2019 and 2018. Held-to-Maturity Investments The carrying value of held-to-maturity investments was $249 million and $188 million at December 31, 2019 and 2018, respectively. Held-to-maturity investments included certain investments in BlackRock sponsored CLOs and foreign government debt held primarily for regulatory purposes. The amortized cost (carrying value) of these investments approximated fair value (primarily a Level 2 input). At December 31, 2019, $80 million of these investments mature between five years to ten years and $169 million mature after ten years. Equity and Trading Debt Securities A summary of the cost and carrying value of equity and trading debt securities is as follows: December 31, 2019 December 31, 2018 (in millions) Cost Carrying Value Cost Carrying Value Trading debt securities: Corporate debt $ 822 $ 844 $ 800 $ 798 Government debt 268 269 771 756 Asset/mortgage backed debt 141 136 115 106 Total trading debt securities $ 1,231 $ 1,249 $ 1,686 $ 1,660 Equity securities at FVTNI: Deferred compensation plan mutual funds $ 6 $ 23 $ 21 $ 34 Equity securities/multi-asset mutual funds 1,763 1,903 995 987 Total equity securities at FVTNI $ 1,769 $ 1,926 $ 1,016 $ 1,021

Consolidated Sponsored Investme

Consolidated Sponsored Investment Products	12 Months Ended
Consolidated Sponsored Investment Products	Dec. 31, 2019
Statement Of Financial Position [Abstract]
Consolidated Sponsored Investment Products	6. Consolidated Sponsored Investment Products The Company consolidates certain sponsored investment funds accounted for as VREs because it is deemed to control such funds. In the normal course of business, the Company is the manager of various types of sponsored investment vehicles, which may be considered VIEs. The Company may from time to time own equity or debt securities or enter into derivatives with the vehicles, each of which are considered variable interests. The Company’s involvement in financing the operations of the VIEs is generally limited to its investments in the entity. The Company’s consolidated VIEs include certain sponsored investment products in which BlackRock has an investment and as the investment manager, is deemed to have both the power to direct the most significant activities of the products and the right to receive benefits (or the obligation to absorb losses) that could potentially be significant to these sponsored investment products. The assets of these VIEs are not available to creditors of the Company. In addition, the investors in these VIEs have no recourse to the credit of the Company. The following table presents the balances related to these consolidated sponsored investment products accounted for as VIEs and VREs that were recorded on the consolidated statements of financial condition, including BlackRock’s net interest in these products: December 31, 2019 December 31, 2018 (in millions) VIEs VREs Total VIEs VREs Total Cash and cash equivalents $ 131 $ 10 $ 141 $ 186 $ 59 $ 245 Investments: Trading debt securities 1,059 151 1,210 1,395 233 $ 1,628 Equity securities at FVTNI 1,330 332 1,662 569 291 860 Bank loans 204 — 204 84 — 84 Other investments 194 — 194 263 — 263 Carried interest 514 — 514 369 — 369 Total investments 3,301 483 3,784 2,680 524 3,204 Other assets 68 5 73 876 8 884 Other liabilities (1) (820 ) (20 ) (840 ) (1,374 ) (53 ) (1,427 ) Noncontrolling interests (1,348 ) (34 ) (1,382 ) (1,076 ) (90 ) (1,166 ) BlackRock's net interest in consolidated investment products $ 1,332 $ 444 $ 1,776 $ 1,292 $ 448 $ 1,740 (1) At December 31, 2019 and 2018, other liabilities of VIEs include $195 million and $84 million, respectively, related to borrowings of a consolidated CLO. BlackRock’s total exposure to consolidated sponsored investment products represents the value of its economic ownership interest in these sponsored investment products. Valuation changes associated with investments held at fair value by these consolidated sponsored investment products are reflected in nonoperating income (expense) and partially offset in net income (loss) attributable to noncontrolling interests for the portion not attributable to BlackRock. The Company cannot readily access cash and cash equivalents held by consolidated sponsored investment products to use in its operating activities. Net gain (loss) related to consolidated VIEs is presented in the following table: (in millions) 2019 2018 2017 Nonoperating net gain (loss) on consolidated VIEs $ 210 $ (105 ) $ 118 Net income (loss) attributable to NCI on consolidated VIEs $ 42 $ (6 ) $ 33

Variable Interest Entities

Variable Interest Entities	12 Months Ended
Variable Interest Entities	Dec. 31, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Variable Interest Entities	7. Variable Interest Entities Nonconsolidated VIEs. At December 31, 2019 and 2018, the Company’s carrying value of assets and liabilities included on the consolidated statements of financial condition pertaining to nonconsolidated VIEs and its maximum risk of loss related to VIEs for which it held a variable interest, but for which it was not the PB, was as follows: (in millions) At December 31, 2019 Investments Advisory Fee Receivables Other Net Assets (Liabilities) Maximum Risk of Loss (1) Sponsored investment products $ 539 $ 71 $ (10 ) $ 627 At December 31, 2018 Sponsored investment products $ 348 $ 43 $ (6 ) $ 408 (1) At December 31, 2019 and 2018, BlackRock’s maximum risk of loss associated with these VIEs primarily related to BlackRock’s investments and the collection of advisory fee receivables. The net assets of sponsored investment products that are nonconsolidated VIEs approximated $12 billion and $9 billion at December 31, 2019 and 2018, respectively.

Fair Value Disclosures

Fair Value Disclosures	12 Months Ended
Fair Value Disclosures	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Fair Value Disclosures	8. Fair Value Disclosures Fair Value Hierarchy Assets and liabilities measured at fair value on a recurring basis December 31, 2019 (in millions) Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Investments Measured at NAV (1) Other (2) December 31, 2019 Assets: Investments Debt securities: Held-to-maturity investments $ — $ — $ — $ — $ 249 $ 249 Trading securities — 1,241 8 — — 1,249 Total debt securities — 1,241 8 — 249 1,498 Equity securities at FVTNI: Deferred compensation plan mutual funds 23 — — — — 23 Equity securities/Multi-asset mutual funds 1,903 — — — — 1,903 Total equity securities at FVTNI 1,926 — — — — 1,926 Equity method: Equity and fixed income mutual funds 157 — — — — 157 Hedge funds/funds of hedge funds — — — 220 — 220 Private equity funds — — — 248 — 248 Real assets funds — — — 296 — 296 Other 12 — — 10 — 22 Total equity method 169 — — 774 — 943 Bank loans — 27 177 — — 204 Federal Reserve Bank Stock — — — — 93 93 Carried interest — — — — 528 528 Other investments (3) — — 9 98 190 297 Total investments 2,095 1,268 194 872 1,060 5,489 Other assets (4) 173 — — — — 173 Separate account assets 72,515 29,582 — — 747 102,844 Separate account collateral held under securities lending agreements: Equity securities 10,209 — — — — 10,209 Debt securities — 5,257 — — — 5,257 Total separate account collateral held under securities lending agreements 10,209 5,257 — — — 15,466 Total $ 84,992 $ 36,107 $ 194 $ 872 $ 1,807 123,972 Liabilities: Separate account collateral liabilities under securities lending agreements $ 10,209 $ 5,257 $ — $ — $ — $ 15,466 Other liabilities (5) — 10 388 — — 398 Total $ 10,209 $ 5,267 $ 388 $ — $ — $ 15,864 (1) (2) (3) (4) ( 5 ) Amounts primarily include contingent liabilities related to certain acquisitions (see Note 16, Commitments and Contingencies Assets and liabilities measured at fair value on a recurring basis December 31, 2018 (in millions) Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Investments Measured at NAV (1) Other (2) December 31, 2018 Assets: Investments Debt securities: Held-to-maturity investments $ — $ — $ — $ — $ 188 $ 188 Trading securities — 1,656 4 — — 1,660 Total debt securities — 1,656 4 — 188 1,848 Equity securities at FVTNI: Deferred compensation plan mutual funds 34 — — — — 34 Equity securities/Multi-asset mutual funds 987 — — — — 987 Total equity securities at FVTNI 1,021 — — — — 1,021 Equity method: Equity and fixed income mutual funds 122 — — — — 122 Hedge funds/funds of hedge funds — — — 173 — 173 Private equity funds — — — 116 — 116 Real assets funds — — — 353 — 353 Other — — — 14 3 17 Total equity method 122 — — 656 3 781 Bank loans — 14 70 — — 84 Federal Reserve Bank Stock — — — — 92 92 Carried interest — — — — 387 387 Other investments (3) — — 82 106 75 263 Total investments 1,143 1,670 156 762 745 4,476 Other assets (4) 122 — — — — 122 Separate account assets 63,610 25,810 — — 865 90,285 Separate account collateral held under securities lending agreements: Equity securities 15,066 — — — — 15,066 Debt securities — 5,589 — — — 5,589 Total separate account collateral held under securities lending agreements 15,066 5,589 — — — 20,655 Total $ 79,941 $ 33,069 $ 156 $ 762 $ 1,610 $ 115,538 Liabilities: Separate account collateral liabilities under securities lending agreements $ 15,066 $ 5,589 $ — $ — $ — $ 20,655 Other liabilities (5) — 6 371 — — 377 Total $ 15,066 $ 5,595 $ 371 $ — $ — $ 21,032 (1) (2) (3) (4) (5) Commitments and Contingencies Level 3 Assets. Level 3 assets may include investments in CLOs and bank loans of consolidated CLOs, which were valued based on single-broker nonbinding quotes and direct private equity investments, which were valued using the market or income approach as described below. Direct investments in private equity companies may be valued using the market approach or the income approach, or a combination thereof, and were valued based on an assessment of each underlying investment, incorporating evaluation of additional significant third-party financing, changes in valuations of comparable peer companies, the business environment of the companies, market indices, assumptions relating to appropriate risk adjustments for nonperformance and legal restrictions on disposition, among other factors. The fair value derived from the methods used is evaluated and weighted, as appropriate, considering the reasonableness of the range of values indicated. Under the market approach, fair value may be determined by reference to multiples of market-comparable companies or transactions, including earnings before interest, taxes, depreciation and amortization (“EBITDA”) multiples. Under the income approach, fair value may be determined by discounting the expected cash flows to a single present value amount using current expectations about those future amounts. Unobservable inputs used in a discounted cash flow model may include projections of operating performance generally covering a five-year period and a terminal value of the private equity direct investment. For investments utilizing a discounted cash flow valuation technique, a significant increase (decrease) in the discount rate, risk premium or discount for lack of marketability in isolation could have resulted in a significantly lower (higher) fair value measurement as of December 31, 2019. For investments utilizing the market-comparable valuation technique, a significant increase (decrease) in a valuation multiple in isolation could have resulted in a significantly higher (lower) fair value measurement as of December 31, 2019. Level 3 Liabilities . Level 3 liabilities primarily include contingent liabilities associated with certain acquisitions, which were valued based upon discounted cash flow analyses using unobservable market data inputs and borrowings of a consolidated CLO, which were valued based on the fair value of the assets of the consolidated CLO less the fair value of the Company’s economic interest in the CLO. Changes in Level 3 Assets and Liabilities Measured at Fair Value on a Recurring Basis for 2019 (in millions) December 31, 2018 Realized and Unrealized Gains (Losses) Purchases Sales and Maturities Issuances and Other Settlements (1) Transfers into Level 3 Transfers out of Level 3 (2) December 31, 2019 Total Net Unrealized Gains (Losses) Included in Earnings (3) Assets: Investments: Debt securities: Trading $ 4 $ — $ 10 $ — $ — $ — $ (6 ) $ 8 $ — Total debt securities 4 — 10 — — — (6 ) 8 — Private equity 82 — — — — — (73 ) 9 — Bank loans (4) 70 — 107 — — — — 177 — Total investments 156 — 117 — — — (79 ) 194 — Total Level 3 assets $ 156 $ — $ 117 $ — $ — $ — $ (79 ) $ 194 $ — Liabilities: Other liabilities (4) $ 371 $ (53 ) $ — $ — $ (36 ) $ — $ — $ 388 $ (53 ) Total Level 3 liabilities $ 371 $ (53 ) $ — $ — $ (36 ) $ — $ — $ 388 $ (53 ) (1) Amounts include proceeds from borrowings of a consolidated CLO and contingent liability payments in connection with certain prior acquisitions. (2) Amounts include an investment in a consolidated entity that no longer qualifies as an investment company and is no longer accounted for under a fair value measure. (3) Earnings attributable to the change in unrealized gains (losses) relating to assets and liabilities still held at the reporting date. (4) Amounts include contingent liabilities in connection with certain acquisitions and bank loans and borrowings related to a consolidated CLO. Changes in Level 3 Assets and Liabilities Measured at Fair Value on a Recurring Basis for 201 8 (in millions) December 31, 2017 Realized and Unrealized Gains (Losses) Purchases Sales and Maturities Issuances and Other Settlements (1) Transfers into Level 3 Transfers out of Level 3 December 31, 2018 Total Net Unrealized Gains (Losses) Included in Earnings (2) Assets: Investments: Debt securities Available-for-sale securities (3) $ — $ — $ 26 $ — $ — $ — $ (26 ) $ — $ — Trading — — 9 — — — (5 ) 4 — Total debt securities — — 35 — — — (31 ) 4 — Private equity 116 (20 ) — (14 ) — — — 82 (20 ) Bank loans (4) — — — — 70 — — 70 — Total investments 116 (20 ) 35 (14 ) 70 — (31 ) 156 (20 ) Total Level 3 assets $ 116 $ (20 ) $ 35 $ (14 ) $ 70 $ — $ (31 ) $ 156 $ (20 ) Liabilities: Other liabilities (4) $ 236 $ (65 ) $ — $ — $ 70 $ — $ — $ 371 $ (65 ) Total Level 3 liabilities $ 236 $ (65 ) $ — $ — $ 70 $ — $ — $ 371 $ (65 ) (1) Issuances and other settlements amount includes a contingent liability in connection with an acquisition, partially offset by a contingent liability payment in connection with a prior acquisition. (2) Earnings attributable to the change in unrealized gains (losses) relating to assets and liabilities still held at the reporting date. (3) Amounts include investments in CLOs. (4) Amounts include contingent liabilities in connection with certain acquisitions and bank loans and borrowings related to the consolidation of one additional CLO. Realized and Unrealized Gains (Losses) for Level 3 Assets and Liabilities. Realized and unrealized gains (losses) recorded for Level 3 assets and liabilities are reported in nonoperating income (expense) on the consolidated statements of income. A portion of net income (loss) for consolidated sponsored investment funds are allocated to noncontrolling interests to reflect net income (loss) not attributable to the Company. Transfers in and/or out of Levels. Transfers in and/or out of levels are reflected when significant inputs, including market inputs or performance attributes, used for the fair value measurement become observable/unobservable, or when the carrying value of certain equity method investments no longer represents fair value as determined under valuation methodologies. Disclosures of Fair Value for Financial Instruments Not Held at Fair Value . At December 31, 2019 and 2018, the fair value of the Company’s financial instruments not held at fair value are categorized in the table below. December 31, 2019 December 31, 2018 (in millions) Carrying Amount Estimated Fair Value Carrying Amount Estimated Fair Value Fair Value Hierarchy Financial Assets (1) Cash and cash equivalents $ 4,829 $ 4,829 $ 6,488 $ 6,488 Level 1 (2) (3) Other assets 68 68 18 18 Level 1 (2) (4) Financial Liabilities: Long-term borrowings 4,955 5,254 4,979 5,034 Level 2 (5) (1) See Note 5 , Investments (2) Cash and cash equivalents are carried at either cost or amortized cost, which approximates fair value due to their short-term maturities. (3) At December 31, 2019 and 2018, approximately $674 million and $173 million of money market funds were recorded within cash and cash equivalents on the consolidated statements of financial condition. Money market funds are valued based on quoted market prices, or $1.00 per share, which generally is the NAV of the fund. (4) Other assets include restricted cash and cash collateral deposited with certain derivative counterparties. The carrying values of these assets approximate fair value due to their short-term maturities. (5) Long-term borrowings are recorded at amortized cost, net of debt issuance costs. The fair value of the long-term borrowings, including the current portion of long-term borrowings, is determined using market prices at the end of December 2019 and 2018, respectively. See Note 15, Borrowings Investments in Certain Entities that Calculate NAV Per Share As a practical expedient to value certain investments that do not have a readily determinable fair value and have attributes of an investment company, the Company uses NAV as the fair value. The following tables list information regarding all investments that use a fair value measurement to account for both their financial assets and financial liabilities in their calculation of a NAV per share (or equivalent). December 31, 2019 (in millions) Ref Fair Value Total Unfunded Commitments Redemption Frequency Redemption Notice Period Equity method: (1) Hedge funds/funds of hedge funds (a) $ 220 $ 120 Daily/Monthly (27%) Quarterly (15%) N/R (58%) 1 – 90 days Private equity funds (b) 248 212 N/R N/R Real assets funds (c) 296 120 Quarterly (57%) N/R (43%) 60 days Other 10 9 N/R N/R Consolidated sponsored investment products: Private equity funds of funds (d) 23 9 N/R N/R Hedge fund (a) 3 — Quarterly 90 days Real assets funds (c) 72 83 NR NR Total $ 872 $ 553 December 31, 2018 (in millions) Ref Fair Value Total Unfunded Commitments Redemption Frequency Redemption Notice Period Equity method: (1) Hedge funds/funds of hedge funds (a) $ 173 $ 96 Daily/Monthly (30%) Quarterly (18%) N/R (52%) 1 – 90 days Private equity funds (b) 116 83 N/R N/R Real assets funds (c) 353 93 Quarterly (68%) N/R (32%) 60 days Other 14 16 Daily (80%) N/R (20%) 5 days Consolidated sponsored investment products: Private equity funds of funds (d) 48 18 N/R N/R Hedge fund (a) 3 — Quarterly 90 days Real assets funds (c) 55 37 NR NR Total $ 762 $ 343 N/R – not redeemable (1) Comprised of equity method investments, which include investment companies that account for their financial assets and most financial liabilities under fair value measures; therefore, the Company’s investment in such equity method investees approximates fair value. (a) This category includes hedge funds and funds of hedge funds that invest primarily in equities, fixed income securities, distressed credit, opportunistic and mortgage instruments and other third-party hedge funds. The fair values of the investments have been estimated using the NAV of the Company’s ownership interest in partners’ capital. The liquidation period for the investments in the funds that are not subject to redemption is unknown at both December 31, 2019 and 2018. (b) This category includes several private equity funds that initially invest in nonmarketable securities of private companies, which ultimately may become public in the future. The fair values of these investments have been estimated using capital accounts representing the Company’s ownership interest in the funds as well as other performance inputs. The Company’s investment in each fund is not subject to redemption and is normally returned through distributions as a result of the liquidation of the underlying assets of the private equity funds. The liquidation period for the investments in the funds that are not subject to redemption is unknown at both December 31, 2019 and 2018. (c) This category includes several real assets funds that invest directly in real estate, real estate related assets and infrastructure. The fair values of the investments have been estimated using capital accounts representing the Company’s ownership interest in the funds. The Company’s investments that are not subject to redemption or are not currently redeemable are normally returned through distributions as a result of the liquidation of the underlying assets of the funds. The liquidation period for the investments in the funds that are not subject to redemption is unknown at both December 31, 2019 and December 31, 2018. The total remaining unfunded commitments to other third-party funds were $203 million and $130 million at December 31, 2019 and December 31, 2018, respectively. The Company had contractual obligations to the consolidated funds of $172 million and $117 million at December 31, 2019 and 2018, respectively. (d) This category includes the underlying third-party private equity funds within consolidated BlackRock sponsored private equity funds of funds. The fair values of the investments in the third-party funds have been estimated using capital accounts representing the Company’s ownership interest in each fund in the portfolio as well as other performance inputs. These investments are not subject to redemption; however, for certain funds, the Company may sell or transfer its interest, which may need approval by the general partner of the underlying funds. Due to the nature of the investments in this category, the Company reduces its investment by distributions that are received through the realization of the underlying assets of the funds. The liquidation period for the investments in the funds that are not subject to redemption is unknown at both December 31, 2019 and December 31, 2018. The total remaining unfunded commitments to other third-party funds were $9 million and $18 million at December 31, 2019 and 2018, respectively. The Company had contractual obligations to the consolidated funds of $22 million at both December 31, 2019 and 2018. Fair Value Option At December 31, 2019 and 2018, the Company elected the fair value option for certain investments in CLOs of approximately $37 million and $32 million, respectively, reported within investments. In addition, the Company elected the fair value option for bank loans and borrowings of a consolidated CLO, recorded within investments and other liabilities, respectively. The following table summarizes the information related to these bank loans and borrowings at December 31, 2019 and 2018: December 31, December 31, (in millions) 2019 2018 CLO Bank loans: Aggregate principal amounts outstanding $ 204 $ 84 Fair value 204 84 Aggregate unpaid principal balance in excess of (less than) fair value $ — $ — CLO Borrowings: Aggregate principal amounts outstanding $ 195 $ 84 Fair value $ 195 $ 84 At December 31, 2019, the principal amounts outstanding of the borrowings issued by the CLOs mature in 2030. During the year ended December 31, 2019 and 2018, the net gains (losses) from the change in fair value of the bank loans and borrowings held by the consolidated CLO were not material and were recorded in net gain (loss) on the consolidated statements of income. The change in fair value of the assets and liabilities included interest income and expense, respectively.

Derivatives and Hedging

Derivatives and Hedging	12 Months Ended
Derivatives and Hedging	Dec. 31, 2019
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Derivatives and Hedging	9. Derivatives and Hedging The Company maintains a program to enter into swaps to hedge against market price and interest rate exposures with respect to certain seed investments in sponsored investment products. At December 31, 2019 and 2018, the Company had outstanding total return swaps with aggregate notional values of approximately $644 million and $483 million, respectively. At both December 31, 2019 and 2018 , The Company executes forward foreign currency exchange contracts to mitigate the risk of certain foreign exchange movements. At December 31, 2019 and 2018, the Company had outstanding forward foreign currency exchange contracts with aggregate notional values of approximately $3.4 billion and $2.2 billion, respectively. The fair values of the outstanding total return swaps, credit default swap and forward foreign currency exchange contracts were not material to the consolidated statement of financial condition at both December 31, 2019 and 2018. The following table presents gains (losses) recognized in the consolidated statements of income on derivative instruments: (in millions) Gains (Losses) Derivative Instruments Statement of Income Classification 2019 2018 2017 Total return swaps Nonoperating income (expense) $ (106 ) $ 54 $ (118 ) Interest rate swaps Nonoperating income (expense) — — (2 ) Forward foreign currency exchange contracts General and administration expense 55 (124 ) 63 Total gain (loss) from derivative instruments $ (51 ) $ (70 ) $ (57 ) The Company consolidates certain sponsored investment funds, which may utilize derivative instruments as a part of the funds’ investment strategies. The change in fair value of such derivatives, which is recorded in nonoperating income (expense), was not material for 2019, 2018 and 2017. See Note 15, Borrowings

Property and Equipment

Property and Equipment	12 Months Ended
Property and Equipment	Dec. 31, 2019
Property Plant And Equipment [Abstract]
Property and Equipment	10. Property and Equipment Property and equipment consists of the following: Estimated useful December 31, (in millions) life-in years 2019 2018 Property and equipment: Land N/A $ 6 $ 6 Building 39 33 33 Building improvements 15 30 30 Leasehold improvements 1-15 565 534 Equipment and computer software 3 672 541 Other transportation equipment 10 136 135 Furniture and fixtures 7 70 66 Construction in progress N/A 83 48 Total 1,595 1,393 Less: accumulated depreciation and amortization 880 750 Property and equipment, net $ 715 $ 643 N/A – Not Applicable Qualifying software costs of approximately $93 million, $77 million and $60 million have been capitalized within equipment and computer software during 2019, 2018 and 2017, respectively, and are being amortized over an estimated useful life of three years. Depreciation and amortization expense was $182 million, $154 million and $132 million for 2019, 2018 and 2017, respectively.

Goodwill

Goodwill	12 Months Ended
Goodwill	Dec. 31, 2019
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill	11. Goodwill Goodwill activity during 2019 and 2018 was as follows: (in millions) 2019 2018 Beginning of year balance $ 13,526 $ 13,220 Acquisitions 1,044 316 Goodwill adjustments related to Quellos and other (1) (8 ) (10 ) End of year balance $ 14,562 $ 13,526 (1) Amounts primarily resulted from a decline related to tax benefits realized from tax-deductible goodwill in excess of book goodwill from the acquisition of the fund-of-funds business of Quellos Group, LLC in October 2007 (the “Quellos Transaction”). Goodwill related to the Quellos Transaction will continue to be reduced in future periods by the amount of tax benefits realized from tax-deductible goodwill in excess of book goodwill from the Quellos Transaction. The balance of the Quellos tax-deductible goodwill in excess of book goodwill was approximately In 2019, the $1,044 increase in goodwill resulted from the eFront Transaction, which closed on May 10, 2019. See Note 3, Acquisition In 2018, the $316 million increase in goodwill included $184 million of goodwill related to the acquisition of Tennenbaum Capital Partners, LLC, a middle market credit and special situation credit opportunities manager, in August 2018 (“TCP Transaction”). The Company believes the acquisition enhances its ability to provide clients with private credit solutions across a range of risk level, liquidity and geography. Total cash consideration paid at closing for the TCP Transaction was approximately $393 million. The amount also included $132 million of goodwill related to the acquisition of the asset management business of Citibanamex, a subsidiary of Citigroup, Inc. in September 2018 (“Citibanamex Transaction”). The Company acquired AUM across local fixed income, equity and multi-asset products, enabling the Company to offer a full range of local and international investment solutions for clients in Mexico. Total consideration at closing for the Citibanamex Transaction was approximately $360 million, including estimated contingent consideration at close. BlackRock assessed its goodwill for impairment as of July 31, 2019, 2018 and 2017 and considered such factors as the book value and the market capitalization of the Company. The impairment assessment indicated no impairment charges were required. The Company continues to monitor its book value per share compared with closing prices of its common stock for potential indicators of impairment. At December 31, 2019, the Company’s common stock closed at a market price of $502.70, which exceeded its book value of approximately $216.15 per share.

Intangible Assets

Intangible Assets	12 Months Ended
Intangible Assets	Dec. 31, 2019
Goodwill And Intangible Assets Disclosure [Abstract]
Intangible Assets	12. Intangible Assets Intangible assets at December 31, 2019 and 2018 consisted of the following: (in millions) Remaining Weighted- Average Estimated Useful Life Gross Carrying Amount Accumulated Amortization Net Carrying Amount At December 31, 2019 Indefinite-lived intangible assets: Management contracts N/A $ 16,169 $ — $ 16,169 Trade names / trademarks N/A 1,403 — 1,403 License N/A 6 — 6 Total indefinite-lived intangible assets 17,578 — 17,578 Finite-lived intangible assets: Management contracts 4.8 283 135 148 Investor/customer relationships 9.2 476 39 437 Technology-related 7.4 203 9 194 Trade names / trademarks 3.3 14 2 12 Total finite-lived intangible assets 7.8 976 185 791 Total intangible assets $ 18,554 $ 185 $ 18,369 At December 31, 2018 Indefinite-lived intangible assets: Management contracts N/A $ 16,169 $ — $ 16,169 Trade names / trademarks N/A 1,403 — 1,403 License N/A 6 — 6 Total indefinite-lived intangible assets 17,578 — 17,578 Finite-lived intangible assets: Management contracts 5.2 439 237 202 Investor/customer relationships 10.7 66 7 59 Total finite-lived intangible assets 6.5 505 244 261 Total intangible assets $ 18,083 $ 244 $ 17,839 N/A – Not Applicable The impairment tests performed for intangible assets as of July 31, 2019, 2018 and 2017 indicated no impairment charges were required. Estimated amortization expense for finite-lived intangible assets for each of the five succeeding years is as follows: (in millions) Year Amount 2020 $ 106 2021 107 2022 103 2023 97 2024 92 In 2019, in connection with the eFront Transaction, the Company acquired $400 million of finite-lived customer relationships, $203 million of finite-lived technology-related intangible assets and $14 million of a finite-lived trade name, with weighted-average estimated lives of approximately 10 years, eight years and four years, respectively. See Note 3, Acquisition In 2018, in connection with the TCP and Citibanamex transactions, the Company acquired $145 million and $255 million of indefinite-lived management contracts, respectively, and $48 million and $31 million of finite-lived management contracts, respectively, with a weighted-average estimated life of approximately six and eight years, respectively.

Leases

Leases	12 Months Ended
Leases	Dec. 31, 2019
Leases [Abstract]
Leases	13. Leases The following table presents components of lease cost included in general and administration expense on the consolidated statements of income: (in millions) 2019 Lease cost (1) Operating lease cost (2) $ 141 Variable lease cost (3) 39 Total lease cost $ 180 (1) Rent expense and certain office equipment expense under lease agreements amounted to $135 million and $132 million in 2018 and 2017, respectively. (2) Amount includes short-term leases, which are immaterial for 2019. (3) Amount includes operating lease payments, which may be adjusted based on usage, changes in an index or market rate. The following table presents operating leases included on the consolidated statement of financial condition: (in millions) Statement of Financial Condition Classification December 31, 2019 Statement of Financial Condition information: Operating lease ROU assets Other assets $ 669 Operating lease liabilities Other liabilities $ 776 Supplemental information related to operating leases is summarized below: (in millions) December 31, 2019 Supplemental cash flow information: Cash paid for amounts included in the measurement of operating lease liabilities $ 142 Supplemental noncash information: ROU assets in exchange for operating lease liabilities in connection with the adoption of ASU 2016-02 $ 661 ROU assets in exchange for operating lease liabilities $ 117 December 31, 2019 Lease term and discount rate: Weighted-average remaining lease term 9 years Weighted-average discount rate 3 % (in millions) Maturity of operating lease liabilities at December 31, 2019 Amount (1) 2020 $ 152 2021 147 2022 142 2023 91 2024 58 Thereafter 294 Total lease payments $ 884 Less: imputed interest 108 Present value of lease liabilities $ 776 (1) Amount excludes $1.5 billion of legally binding minimum lease payments for leases signed but not yet commenced. The table below summarizes BlackRock’s future minimum commitments under the operating leases at December 31, 2018, reflecting accounting guidance prior to the adoption of the new lease accounting standard: (in millions) Operating lease commitments at December 31, 2018 Amount 2019 $ 145 2020 139 2021 130 2022 121 2023 106 Thereafter 1,516 Total $ 2,157 In May 2017, the Company entered into an agreement with 50 HYMC Owner LLC, for the lease of approximately 847,000 square feet of office space located at 50 Hudson Yards, New York, New York. The term of the lease is twenty years from the date that rental payments begin, expected to occur in May 2023, with the option to renew for a specified term. The lease requires annual base rental payments of approximately $51 million per year during the first five years of the lease term, increasing every five years to $58 million, $66 million and $74 million per year (or approximately $1.2 billion in base rent over its twenty-year term). In November 2019, the Company exercised its initial expansion option with respect to two additional floors of approximately 122,000 square feet of office space. The additional space requires approximately $185 million in base rent over its twenty-year term.

Other Assets

Other Assets	12 Months Ended
Other Assets	Dec. 31, 2019
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]
Other Assets	14. Other Assets The Company accounts for its interest in PennyMac Financial Services, Inc. (“PennyMac”) as an equity method investment. At December 31, 2019 and 2018, the Company’s investment in PennyMac is included in other assets on the consolidated statements of financial condition. The carrying value and market value of the Company’s interest (approximately 20% or 16 million shares) were approximately $451 million and $530 million, respectively, at December 31, 2019 and approximately $397 million and $331 million, respectively, at December 31, 2018. The market value of the Company’s interest reflected the PennyMac stock price at December 31, 2019 and 2018, respectively (a Level 1 input).

Borrowings

Borrowings	12 Months Ended
Borrowings	Dec. 31, 2019
Debt Disclosure [Abstract]
Borrowings	15. Borrowings Short-Term Borrowings 2019 Revolving Credit Facility. The Company’s credit facility has an aggregate commitment amount of $4 billion and was amended in March 2019 to extend the maturity date to March 2024 (the “2019 credit facility”). The 2019 credit facility permits the Company to request up to an additional $1 billion of borrowing capacity, subject to lender credit approval, increasing the overall size of the 2019 credit facility to an aggregate principal amount not to exceed $5 billion. Interest on borrowings outstanding accrues at a rate based on the applicable London Interbank Offered Rate plus a spread. The 2019 credit facility requires the Company not to exceed a maximum leverage ratio (ratio of net debt to EBITDA, where net debt equals total debt less unrestricted cash) of 3 to 1, which was satisfied with a ratio of less than 1 to 1 at December 31, 2019. The 2019 credit facility provides back-up liquidity to fund ongoing working capital for general corporate purposes and various investment opportunities. At December 31, 2019, the Company had no amount outstanding under the 2019 credit facility. Commercial Paper Program. The Company can issue unsecured commercial paper notes (the “CP Notes”) on a private-placement basis up to a maximum aggregate amount outstanding at any time of $4 billion. The commercial paper program is currently supported by the 2019 credit facility. At December 31, 2019, BlackRock had no CP Notes outstanding. Long-Term Borrowings The carrying value and fair value of long-term borrowings determined using market prices and EUR/USD foreign exchange rate at December 31, 2019 included the following: (in millions) Maturity Unamortized Discount and Debt Issuance Costs Carrying Value Fair Value 4.25% Notes due 2021 $ 750 $ (1 ) $ 749 $ 775 3.375% Notes due 2022 750 (2 ) 748 777 3.50% Notes due 2024 1,000 (4 ) 996 1,062 1.25% Notes due 2025 786 (5 ) 781 832 3.20% Notes due 2027 700 (5 ) 695 740 3.25% Notes due 2029 1,000 (14 ) 986 1,068 Total Long-term Borrowings $ 4,986 $ (31 ) $ 4,955 $ 5,254 Long-term borrowings at December 31, 2018 had both a carrying value and a fair value of approximately $5 billion determined using market prices at the end of December 2018. See Note 29, Subsequent Events 2029 Notes. In April 2019, the Company issued $1 billion in aggregate principal amount of 3.25% senior unsecured and unsubordinated notes maturing on April 30, 2029 (the “2029 Notes”). T he net proceeds of the 2029 Notes were used for general corporate purposes, which included a portion of the purchase price of the eFront Transaction, repayment of a portion of the $1 billion 5.00% notes in December 2019 and repayment of borrowings under its commercial paper program. Interest is payable semi-annually on April 30 and October 30 of each year, which commenced on October 30, 2019 In December 2019, the Company fully repaid $1 billion of 5.00% notes at maturity. 2027 Notes . In March 2017, the Company issued $700 million in aggregate principal amount of 3.20% senior unsecured and unsubordinated notes maturing on March 15, 2027 (the “2027 Notes”). The net proceeds of the 2027 Notes were used to fully repay $700 million in aggregate principal amount outstanding of 6.25% notes in April 2017 prior to their maturity in September 2017. Interest is payable semi-annually on March 15 and September 15 of each year, and is approximately $22 million per year. The 2027 Notes may be redeemed prior to maturity at any time in whole or in part at the option of the Company at a “make-whole” redemption price. The unamortized discount and debt issuance costs are being amortized over the remaining term of the 2027 Notes. 2025 Notes. In May 2015, the Company issued €700 million of 1.25% senior unsecured notes maturing on May 6, 2025 (the “2025 Notes”). The notes are listed on the New York Stock Exchange. The net proceeds of the 2025 Notes were used for general corporate purposes, including refinancing of outstanding indebtedness. Interest of approximately $10 million per year based on current exchange rates is payable annually on May 6 of each year. The 2025 Notes may be redeemed in whole or in part prior to maturity at any time at the option of the Company at a “make-whole” redemption price. The unamortized discount and debt issuance costs are being amortized over the remaining term of the 2025 Notes. Upon conversion to US dollars the Company designated the €700 million debt offering as a net investment hedge to offset its currency exposure relating to its net investment in certain euro functional currency operations. A gain of $11 million (net of tax expense of $3 million), a gain of $30 million (net of tax expense of $10 million), and a loss of $64 million (net of tax benefit of $38 million) were recognized in other comprehensive income for 2019, 2018 and 2017, respectively. No hedge ineffectiveness was recognized during 2019, 2018, and 2017. 2024 Notes . In March 2014, the Company issued $1 billion in aggregate principal amount of 3.50% senior unsecured and unsubordinated notes maturing on March 18, 2024 (the “2024 Notes”). The net proceeds of the 2024 Notes were used to refinance certain indebtedness which matured in the fourth quarter of 2014. Interest is payable semi-annually in arrears on March 18 and September 18 of each year, or approximately $35 million per year. The 2024 Notes may be redeemed prior to maturity at any time in whole or in part at the option of the Company at a “make-whole” redemption price. The unamortized discount and debt issuance costs are being amortized over the remaining term of the 2024 Notes. 2022 Notes. In May 2012, the Company issued $1.5 billion in aggregate principal amount of unsecured unsubordinated obligations. These notes were issued as two separate series of senior debt securities, including $750 million of 1.375% notes, which were repaid in June 2015 at maturity, and $750 million of 3.375% notes maturing in June 2022 (the “2022 Notes”). Net proceeds were used to fund the repurchase of BlackRock’s common stock and Series B Preferred from Barclays and affiliates and for general corporate purposes. Interest on the 2022 Notes of approximately $25 million per year is payable semi-annually on June 1 and December 1 of each year. The 2022 Notes may be redeemed prior to maturity at any time in whole or in part at the option of the Company at a “make-whole” redemption price. The “make-whole” redemption price represents a price, subject to the specific terms of the 2022 Notes and related indenture, that is the greater of (a) par value and (b) the present value of future payments that will not be paid because of an early redemption, which is discounted at a fixed spread over a comparable Treasury security. The unamortized discount and debt issuance costs are being amortized over the remaining term of the 2022 Notes. 2021 Notes. In May 2011, the Company issued $1.5 billion in aggregate principal amount of unsecured unsubordinated obligations. These notes were issued as two separate series of senior debt securities, including $750 million of 4.25% notes maturing in May 2021 and $750 million of floating rate notes, which were repaid in May 2013 at maturity. Net proceeds of this offering were used to fund the repurchase of BlackRock’s Series B Preferred from affiliates of Merrill Lynch & Co., Inc. Interest on the 4.25% notes due in 2021 (“2021 Notes”) is payable semi-annually on May 24 and November 24 of each year, and is approximately $32 million per year. The 2021 Notes may be redeemed prior to maturity at any time in whole or in part at the option of the Company at a “make-whole” redemption price. The unamortized discount and debt issuance costs are being amortized over the remaining term of the 2021 Notes.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
Commitments and Contingencies	Dec. 31, 2019
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	16. Commitments and Contingencies Investment Commitments . At December 31, 2019, the Company had $553 million of various capital commitments to fund sponsored investment products, including consolidated sponsored investment products. These products include private equity funds, real assets funds, and opportunistic funds. This amount excludes additional commitments made by consolidated funds of funds to underlying third-party funds as third-party noncontrolling interest holders have the legal obligation to fund the respective commitments of such funds of funds. Generally, the timing of the funding of these commitments is unknown and the commitments are callable on demand at any time prior to the expiration of the commitment. These unfunded commitments are not recorded on the consolidated statements of financial condition. These commitments do not include potential future commitments approved by the Company that are not yet legally binding. The Company intends to make additional capital commitments from time to time to fund additional investment products for, and with, its clients. Contingencies Contingent Payments Related to Business Acquisitions . In connection with certain acquisitions, BlackRock is required to make contingent payments, subject to achieving specified performance targets, which may include revenue related to acquired contracts or new capital commitments for certain products. The fair value of the remaining aggregate contingent payments at December 31, 2019 totaled $193 million, and is included in other liabilities on the consolidated statements of financial condition. Other Contingent Payments. The Company acts as the portfolio manager in a series of derivative transactions and has a maximum potential exposure of $17 million between the Company and counterparty. See Note 9, , for further discussion. Legal Proceedings. From time to time, BlackRock receives subpoenas or other requests for information from various US federal and state governmental and regulatory authorities and international governmental and regulatory authorities in connection with industry-wide or other investigations or proceedings. It is BlackRock’s policy to cooperate fully with such matters. The Company, certain of its subsidiaries and employees have been named as defendants in various legal actions, including arbitrations and other litigation arising in connection with BlackRock’s activities. Additionally, BlackRock-advised investment portfolios may be subject to lawsuits, any of which potentially could harm the investment returns of the applicable portfolio or result in the Company being liable to the portfolios for any resulting damages. On May 27, 2014, certain investors in the BlackRock Global Allocation Fund, Inc. and the BlackRock Equity Dividend Fund (collectively, the “Funds”) filed a consolidated complaint (the “Consolidated Complaint”) in the US District Court for the District of New Jersey against BlackRock Advisors, LLC, BlackRock Investment Management, LLC and BlackRock International Limited under the caption In re BlackRock Mutual Funds Advisory Fee Litigation On June 16, 2016, iShares iShares iShares issued by the ETFs the risks to the ETFs’ shareholders in the event of a "flash crash." The plaintiffs seek unspecified monetary and rescission damages. The plaintiffs’ complaint was dismissed in December 2016 and on January 6, 2017, the plaintiffs filed an amended complaint. On April 27, 2017, the court partially granted the defendants’ motion for judgment on the pleadings, dismissing certain of the plaintiffs’ claims. On September 18, 2017, the court issued a decision dismissing the remainder of the lawsuit after a one-day bench trial. On December 1, 2017, the plaintiffs appealed the dismissal of their lawsuit and, on January 23, 2020, the California Court of Appeal affirmed the trial court’s dismissal. The defendants believe the claims in this lawsuit are without merit. On April 5, 2017, BlackRock, Inc., BlackRock Institutional Trust Company, N.A. (“BTC”), the BlackRock, Inc. Retirement Committee and various sub-committees, and a BlackRock employee were named as defendants in a purported class action lawsuit brought in the US District Court for the Northern District of California by a former employee on behalf of all participants and beneficiaries in the BlackRock employee 401(k) Plan (the “Plan”) from April 5, 2011 to the present. The lawsuit generally alleges that the defendants breached their duties towards Plan participants in violation of the Employee Retirement Income Security Act of 1974 by, among other things, offering investment options that were overly expensive, underperformed unaffiliated peer funds, focused disproportionately on active versus passive strategies, and were unduly concentrated in investment options managed by BlackRock. On October 18, 2017, the plaintiffs filed an Amended Complaint, which, among other things, added as defendants certain current and former members of the BlackRock Retirement and Investment Committees. The Amended Complaint also included a new purported class claim on behalf of investors in certain Collective Trust Funds (“CTFs”) managed by BTC. Specifically, the plaintiffs allege that BTC, as fiduciary to the CTFs, engaged in self-dealing by, most significantly, selecting itself as the securities lending agent on terms that the plaintiffs claim were excessive. The Amended Complaint also alleged that BlackRock took undue risks in its management of securities lending cash reinvestment vehicles during the financial crisis. On August 23, 2018, the court granted permission to the plaintiffs to file a Second Amended Complaint (“SAC”) which added as defendants the BlackRock, Inc. Management Development and Compensation Committee, the Plan’s independent investment consultant and the Plan’s Administrative Committee and its members. On October 22, 2018, BlackRock filed a motion to dismiss the SAC, and on June 3, 2019, the plaintiffs filed a motion seeking to certify both the Plan and the CTF classes. On September 3, 2019, the court granted BlackRock’s motion to dismiss part of the plaintiffs’ claim seeking to recover alleged losses in the securities lending vehicles but denied the motion to dismiss in all other respects. On February 11, 2020, the court denied the plaintiffs’ motion to certify the CTF class and granted their motion to certify the Plan class. On February 25, 2020, the plaintiffs requested permission from the appeals court to immediately appeal the class certification ruling. The defendants believe the claims in this lawsuit are without merit. Management, after consultation with legal counsel, currently does not anticipate that the aggregate liability arising out of regulatory matters or lawsuits will have a material effect on BlackRock’s results of operations, financial position, or cash flows. However, there is no assurance as to whether any such pending or threatened matters will have a material effect on BlackRock’s results of operations, financial position or cash flows in any future reporting period. Due to uncertainties surrounding the outcome of these matters, management cannot reasonably estimate the possible loss or range of loss that may arise from these matters. Indemnifications. In the ordinary course of business or in connection with certain acquisition agreements, BlackRock enters into contracts pursuant to which it may agree to indemnify third parties in certain circumstances. The terms of these indemnities vary from contract to contract and the amount of indemnification liability, if any, cannot be determined or the likelihood of any liability is considered remote. Consequently, no liability has been recorded on the consolidated statements of financial condition. In connection with securities lending transactions, BlackRock has agreed to indemnify certain securities lending clients against potential loss resulting from a borrower’s failure to fulfill its obligations under the securities lending agreement should the value of the collateral pledged by the borrower at the time of default be insufficient to cover the borrower’s obligation under the securities lending agreement. The amount of securities on loan as of December 31, 2019 and subject to this type of indemnification was $210 billion. In the Company’s capacity as lending agent, cash and securities totaling $226 billion was held as collateral for indemnified securities on loan at December 31, 2019. The fair value of these indemnifications was not material at December 31, 2019.

Revenue

Revenue	12 Months Ended
Revenue	Dec. 31, 2019
Revenue From Contract With Customer [Abstract]
Revenue	17. Revenue The table below presents detail of revenue for 2019, 2018 and 2017 and includes the product mix of investment advisory, administration fees and securities lending revenue (collectively “base fees”) and performance fees. (in millions) 2019 2018 2017 Investment advisory, administration fees and securities lending revenue: Equity: Active $ 1,554 $ 1,654 $ 1,654 iShares ETFs 3,495 3,549 3,220 Non-ETF index 667 685 680 Equity subtotal 5,716 5,888 5,554 Fixed income: Active 1,918 1,840 1,717 iShares ETFs 963 825 808 Non-ETF index 405 387 344 Fixed income subtotal 3,286 3,052 2,869 Multi-asset 1,148 1,176 1,157 Alternatives: Illiquid alternatives 488 348 281 Liquid alternatives 413 384 358 Currency and commodities (1) 108 98 91 Alternatives subtotal 1,009 830 730 Long-term 11,159 10,946 10,310 Cash management 618 607 558 Total base fees 11,777 11,553 10,868 Investment advisory performance fees: Equity 36 91 152 Fixed income 10 8 34 Multi-asset 19 19 33 Alternatives: Illiquid alternatives 136 70 62 Liquid alternatives 249 224 313 Alternatives subtotal 385 294 375 Total performance fees 450 412 594 Technology services revenue 974 785 657 Distribution fees: Retrocessions 658 709 675 12b-1 fees (US mutual fund distribution fees) 358 406 466 Other 53 40 42 Total distribution fees 1,069 1,155 1,183 Advisory and other revenue: Advisory 99 113 128 Other 170 180 170 Total advisory and other revenue 269 293 298 Total revenue $ 14,539 $ 14,198 $ 13,600 (1) Amounts include commodity iShares The tables below present the investment advisory, administration fees and securities lending revenue by client type and investment style: (in millions) 2019 2018 2017 By client type: Retail $ 3,411 $ 3,413 $ 3,250 iShares ETFs 4,564 4,468 4,113 Institutional: Active 2,172 2,044 1,955 Index 1,012 1,021 992 Total institutional 3,184 3,065 2,947 Long-term 11,159 10,946 10,310 Cash management 618 607 558 Total $ 11,777 $ 11,553 $ 10,868 By investment style: Active $ 5,510 $ 5,391 $ 5,152 Index and iShares 5,649 5,555 5,158 Long-term 11,159 10,946 10,310 Cash management 618 607 558 Total $ 11,777 $ 11,553 $ 10,868 Investment advisory and administration fees – remaining performance obligation The tables below present estimated investment advisory and administration fees expected to be recognized in the future related to the unsatisfied portion of the performance obligations at December 31, 2019 and 2018: December 31, 2019 (in millions) 2020 2021 2022 Thereafter Total Investment advisory and administration fees: Alternatives (1)(2) $ 98 $ 88 $ 74 $ 107 $ 367 December 31, 2018 (in millions) 2019 2020 2021 Thereafter Total Investment advisory and administration fees: Alternatives (1)(2) $ 61 $ 53 $ 42 $ 70 $ 226 (1) Investment advisory and administration fees include management fees related to certain alternative products, which are based on contractual committed capital outstanding at December 31, 2019 and 2018. Actual management fees could be higher to the extent additional committed capital is raised. These fees are generally billed on a quarterly basis in arrears. (2) The Company elected the following practical expedients and therefore does not include amounts related to (1) performance obligations with an original duration of one year or less, and (2) variable consideration related to future service periods. Change in Deferred Carried Interest Liability The table below presents changes in the deferred carried interest liability, which is included in other liabilities on the consolidated statements of financial condition, for the year ended December 31, 2019 and 2018: (in millions) 2019 2018 Beginning balance $ 293 $ 219 Net increase (decrease) in unrealized allocations 259 92 Performance fee revenue recognized (75 ) (18 ) Other 6 — Ending balance $ 483 $ 293 Technology services revenue – remaining performance obligation The tables below present estimated technology services revenue expected to be recognized in the future related to the unsatisfied portion of the performance obligations at December 31, 2019 and 2018: December 31, 2019 (in millions) 2020 2021 2022 Thereafter Total Technology services revenue (1)(2) $ 117 $ 53 $ 31 $ 20 $ 221 December 31, 2018 (in millions) 2019 2020 2021 Thereafter Total Technology services revenue (1)(2) $ 28 $ 24 $ 18 $ 17 $ 87 (1) Technology services revenue primarily includes upfront payments from customers, which the Company generally recognizes as services are performed. (2) The Company elected the following practical expedients and therefore does not include amounts related to (1) performance obligations with an original duration of one year or less, and (2) variable consideration related to future service periods. In addition to amounts disclosed in the table above, certain technology services contracts require fixed minimum fees, which are billed on a monthly or quarterly basis in arrears. The Company recognizes such revenue as services are performed. As of December 31, 2019, the estimated fixed minimum fees for 2020 for outstanding contracts approximated $640 million. The term for these contracts, which are either in their initial or renewal period, ranges from one to five years. The table below presents changes in the technology services deferred revenue liability for the year ended December 31, 2019 and 2018, which is included in other liabilities on the consolidated statements of financial condition: (in millions) 2019 2018 Beginning balance $ 70 $ 62 Additions 86 44 Revenue recognized that was included in the beginning balance (40 ) (36 ) Ending balance $ 116 $ 70

Stock-Based Compensation

Stock-Based Compensation	12 Months Ended
Stock-Based Compensation	Dec. 31, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock-Based Compensation	18. Stock-Based Compensation The components of stock-based compensation expense are as follows: (in millions) 2019 2018 2017 Stock-based compensation: Restricted stock and RSUs $ 532 $ 514 $ 524 Long-term incentive plans to be funded by PNC — 14 15 Stock options 35 36 3 Total stock-based compensation $ 567 $ 564 $ 542 Stock Award and Incentive Plan. Pursuant to the BlackRock, Inc. Second Amended and Restated 1999 Stock Award and Incentive Plan (the “Award Plan”), options to purchase shares of the Company’s common stock at an exercise price not less than the market value of BlackRock’s common stock on the date of grant in the form of stock options, restricted stock or RSUs may be granted to employees and nonemployee directors. A maximum of 41,500,000 shares of common stock were authorized for issuance under the Award Plan. Of this amount, 7,197,212 shares remain available for future awards at December 31, 2019. Upon exercise of employee stock options, the issuance of restricted stock or the vesting of RSUs, the Company issues shares out of treasury to the extent available. Restricted Stock and RSUs. Pursuant to the Award Plan, restricted stock grants and RSUs may be granted to certain employees. Substantially all restricted stock and RSUs vest over periods ranging from one to three years and are expensed using the straight-line method over the requisite service period for each separately vesting portion of the award as if the award was, in-substance, multiple awards. Restricted stock and RSUs are not considered participating securities for purposes of calculating EPS as the dividend equivalents are subject to forfeiture prior to vesting of the award. Restricted stock and RSU activity for 2019 is summarized below. Outstanding at Restricted Stock and RSUs Weighted- Average Grant Date Fair Value December 31, 2018 2,139,890 $ 429.19 Granted 1,226,249 $ 414.41 Converted (1,047,423 ) $ 379.85 Forfeited (82,264 ) $ 434.02 December 31, 2019 (1) 2,236,452 $ 444.02 (1) At December 31, 2019, approximately 2.0 million awards are expected to vest and 0.2 million awards have vested but have not been converted. The Company values restricted stock and RSUs at their grant-date fair value as measured by BlackRock’s common stock price. The total fair market value of RSUs/restricted stock granted to employees during 2019, 2018 and 2017 was $508 million, $492 million and $421 million, respectively. The total grant-date fair market value of RSUs/restricted stock converted to common stock during 2019, 2018 and 2017 was $398 million, $443 million and $457 million, respectively. RSUs/restricted stock granted in connection with annual incentive compensation under the Award Plan primarily related to the following: 2019 2018 2017 Awards granted that vest ratably over three years from the date of grant 674,206 527,337 699,991 Awards granted that cliff vest 100% on: January 31, 2020 — — 277,313 January 31, 2021 — 209,201 — January 31, 2022 377,291 — — 1,051,497 736,538 977,304 In addition, the Company also granted RSUs of 174,752, 155,403 and 126,906 during 2019, 2018 and 2017, respectively, with varying vesting periods. At December 31, 2019, the intrinsic value of outstanding RSUs was $1.1 billion, reflecting a closing stock price of $502.70. At December 31, 2019, total unrecognized stock-based compensation expense related to unvested RSUs was $347 million. The unrecognized compensation cost is expected to be recognized over the remaining weighted-average period of 1.1 years. In January 2020, the Company granted under the Award Plan: • 517,129 RSUs or shares of restricted stock to employees as part of annual incentive compensation that vest ratably over three years from the date of grant; and • 380,335 RSUs or shares of restricted stock to employees that cliff vest 100% on January 31, 2023. Performance-Based RSUs. Pursuant to the Award Plan, performance-based RSUs may be granted to certain employees. Each performance-based award consists of a “base” number of RSUs granted to the employee. The number of shares that an employee ultimately receives at vesting will be equal to the base number of performance-based RSUs granted, multiplied by a predetermined percentage determined in accordance with the level of attainment of Company performance measures during the performance period and could be higher or lower than the original RSU grant. Performance-based RSUs are not considered participating securities as the dividend equivalents are subject to forfeiture prior to vesting of the award. In the first quarter of 2019, 2018 and 2017, the Company granted 283,014, 199,068, and 294,584, respectively, performance-based RSUs to certain employees that cliff vest 100% on January 31, 2022, 2021, and 2020 respectively. These awards are amortized over a service period of three years. The number of shares distributed at vesting could be higher or lower than the original grant based on the level of attainment of predetermined Company performance measures. In January 2019, the Company granted 2,117 additional RSUs to certain employees based on the attainment of Company performance measures during the performance period. Performance-based RSU activity for 2019 is summarized below. Outstanding at Performance- Based RSUs Weighted- Average Grant Date Fair Value December 31, 2018 845,285 $ 386.13 Granted 283,014 $ 410.32 Additional shares granted due to attainment of performance measures 2,117 $ 296.57 Converted (360,927 ) $ 296.57 Forfeited (26,571 ) $ 435.33 December 31, 2019 742,918 $ 436.84 The Company initially values performance-based RSUs at their grant-date fair value as measured by BlackRock’s common stock price. The total grant-date fair market value of performance-based RSUs granted to employees during 2019, 2018, and 2017 was $117 million, $121 million and $111 million, respectively. At December 31, 2019, the intrinsic value of outstanding performance-based RSUs was $373 million reflecting a closing stock price of $502.70. At December 31, 2019, total unrecognized stock-based compensation expense related to unvested performance-based awards was $107 million. The unrecognized compensation cost is expected to be recognized over the remaining weighted-average period of 1.1 years. In January 2020, the Company granted 239,415 performance-based RSUs to certain employees that cliff vest 100% on January 31, 2023. These awards are amortized over a service period of three years. The number of shares distributed at vesting could be higher or lower than the original grant based on the level of attainment of predetermined Company performance measures. Long-Term Incentive Plans Funded by PNC. Under a share surrender agreement, PNC committed to provide up to 4 million shares of BlackRock stock, held by PNC, to fund certain BlackRock long-term incentive plans (“LTIP”), including performance-based and market performance-based RSUs. The current share surrender agreement commits PNC to provide BlackRock Series C nonvoting participating preferred stock to fund the remaining committed shares. On January 31, 2019, PNC surrendered its remaining 143,458 shares to BlackRock and has completed its share delivery obligation in connection with the agreement. Performance-based Stock Options. Pursuant to the Award Plan , performance-based stock options may be granted to certain employees. Vesting of the performance-based stock options is contingent upon the achievement of obtaining 125% of BlackRock’s grant-date stock price within five years from the grant date and the attainment of Company performance measures during the four-year Outstanding at Shares Under Option Weighted Average Exercise Price December 31, 2018 2,106,482 $ 513.50 Forfeited (165,337 ) $ 513.50 December 31, 2019 1,941,145 $ 513.50 The options have a strike price of $513.50, which was the closing price of the shares on the grant date. The grant-date fair value of the awards issued in 2017 was Grant Year Expected Term (Years) Expected Stock Volatility Expected Dividend Yield Risk-Free Interest Rate 2017 6.56 22.23 % 2.16 % 2.33 % The expected term was derived using a Monte Carlo simulation with the embedded lattice model and represents the period of time that options granted are expected to be outstanding. The expected stock volatility was based upon an average of historical stock price fluctuations of BlackRock’s common stock and an implied volatility at the grant date. The dividend yield was calculated as the most recent quarterly dividend divided by the average three-month stock price as of the grant date. The risk free interest rate is based on the US Treasury Constant Maturities yield curve at date of grant. At December 31, 2019, total unrecognized stock-based compensation expense related to unvested performance-based stock options was $108 million. The unrecognized compensation cost is expected to be recognized over the remaining weighted-average period of 3.9 years. Employee Stock Purchase Plan (“ESPP”). The ESPP allows eligible employees to purchase the Company’s common stock at 95% of the fair market value on the last day of each three-month offering period. The Company does not record compensation expense related to employees purchasing shares under the ESPP.

Employee Benefit Plans

Employee Benefit Plans	12 Months Ended
Employee Benefit Plans	Dec. 31, 2019
Compensation And Retirement Disclosure [Abstract]
Employee Benefit Plans	19. Employee Benefit Plans Deferred Compensation Plans Voluntary Deferred Compensation Plan. The Company adopted a Voluntary Deferred Compensation Plan (“VDCP”) that allows eligible employees in the United States to elect to defer between 1% and 100% of their annual cash incentive compensation. The participants must specify a deferral period of up to 10 years from the year of deferral and additionally, elect to receive distributions in the form of a lump sum or in up to 10 annual installments. The Company may fund the obligation through the rabbi trust on behalf of the plan’s participants. The rabbi trust established for the VDCP, with assets totaling $23 million and $34 million at December 31, 2019 and 2018, respectively, is reflected in investments on the consolidated statements of financial condition. Such investments are classified as trading investments. The liability balance of $80 million and $71 million at December 31, 2019 and 2018, respectively, is reflected on the consolidated statements of financial condition as accrued compensation and benefits. Earnings in the rabbi trust, including unrealized appreciation or depreciation, are reflected as nonoperating income (expense) and changes in the liability are reflected as employee compensation and benefits expense on the consolidated statements of income. Leadership Retention Carry Plan. In 2019, the Company adopted a carried interest retention incentive program referred to as the BlackRock Leadership Retention Carry Plan, pursuant to which senior-level employees (but not including the Chief Executive Officer), as may be determined by the Company from time to time, will be eligible to receive a portion of the cash payments, based on their percentage points, in the total carried interest distributions payable to the Company from participating carry funds. Cash payments, if any, with respect to these percentage points will be made following the recipient’s termination of employment due to qualified retirement, death or disability, subject to his or her execution of a release of claims and continued compliance with his or her restrictive covenant obligations following termination. There was no impact to the consolidated financial statements. Other Deferred Compensation Plans. The Company has additional compensation plans for the purpose of providing deferred compensation and retention incentives to certain employees. For these plans, the final value of the deferred amount to be distributed in cash upon vesting is associated with investment returns of certain investment funds. The liabilities for these plans were $311 million and $236 million at December 31, 2019 and 2018, respectively, and are reflected in the consolidated statements of financial condition as accrued compensation and benefits. In January 2020, the Company granted approximately $137 million of additional deferred compensation that will fluctuate with investment returns and will vest ratably over three years from the date of grant. Defined Contribution Plans The Company has several defined contribution plans primarily in the United States and United Kingdom. Certain of the Company’s US employees participate in a defined contribution plan. Employee contributions of up to 8% of eligible compensation, as defined by the plan and subject to Internal Revenue Code limitations, are matched by the Company at 50% up to a maximum of $5,000 annually. In addition, the Company makes an annual retirement contribution to eligible participants equal to 3-5% of eligible compensation. The Company’s contribution expense related to this plan was $66 million in 2019, $63 million in 2018, and $78 million in 2017. Certain UK wholly owned subsidiaries of the Company contribute to defined contribution plans for their employees. The contributions range between 6% and 15% of each employee’s eligible compensation. The Company’s contribution expense related to these plans was $41 million in 2019, $35 million in 2018, and $29 million in 2017. In addition, the contribution expense related to defined contribution plans in other regions was $29 million in 2019, $22 million in 2018 and $21 million in 2017. Defined Benefit Plans. The Company has several defined benefit pension plans primarily in Japan and Germany. All accrued benefits under the Germany defined benefit plan are currently frozen and the plan is closed to new participants. The participant benefits under the Germany plan will not change with salary increases or additional years of service. At December 31, 2019 and 2018, the plan assets for these plans were approximately $28 million and $26 million, respectively. The underfunded obligations at December 31, 2019 and 2018 were not material. Benefit payments for the next five years and in aggregate for the five years thereafter are not expected to be material.

Related Party Transactions

Related Party Transactions	12 Months Ended
Related Party Transactions	Dec. 31, 2019
Related Party Transactions [Abstract]
Related Party Transactions	20. Related Party Transactions Determination of Related Parties PNC. The Company considers PNC, along with its affiliates, to be related parties based on the level of its ownership of BlackRock capital stock. At December 31, 2019, PNC owned approximately 22.0% of the Company’s voting common stock and held approximately 22.4% of the total capital stock. Revenue for services provided by the Company to PNC was not material for 2019, 2018 and 2017. Registered Investment Companies and Equity Method Investments. The Company considers the registered investment companies that it manages, which include mutual funds and exchange-traded funds, to be related parties as a result of the Company’s advisory relationship. In addition, equity method investments are considered related parties, due to the Company’s influence over the financial and operating policies of the investee. Revenue from Related Parties Revenue for services provided by the Company to these and other related parties are as follows: (in millions) 2019 2018 2017 Investment advisory, administration fees and securities lending revenue (1) $ 8,323 $ 8,226 $ 7,692 Investment advisory performance fees 131 112 143 Technology services revenue (2) 9 9 9 Advisory and other revenue (3) 59 65 59 Total revenue from related parties $ 8,522 $ 8,412 $ 7,903 (1) Amount primarily includes revenue from registered investment companies/and equity method investees. (2) Amount primarily includes revenue from PNC and affiliates. (3) Amount primarily includes revenue from equity method investees. The Company provides investment advisory and administration services to its open- and closed-end funds and other commingled or pooled funds and separate accounts in which related parties invest. The Company also provides investment advisory and administration services for fees based on AUM and risk management services to PNC and its affiliates. Expenses for Transactions with Related Parties Expenses for transactions with related parties, which are included within general and administration expense, were $2 million, $2 million and $10 million for 2019, 2018, and 2017, respectively. Certain Agreements and Arrangements with PNC PNC. On February 27, 2009, BlackRock entered into an amended and restated implementation and stockholder agreement with PNC, and a fourth amendment to the share surrender agreement with PNC. On January 31, 2019, PNC surrendered its remaining BlackRock Series C Preferred Stock to BlackRock and has completed its share delivery obligation in connection with the agreement. Receivables and Payables with Related Parties. Due from related parties, which is included within other assets on the consolidated statements of financial condition was $119 million and $179 million at December 31, 2019 and 2018, respectively, and primarily represented receivables from certain investment products managed by BlackRock. Accounts receivable at December 31, 2019 and 2018 included $995 million and $878 million, respectively, related to receivables from BlackRock mutual funds, including iShares ETFs, for investment advisory and administration services Due to related parties, which is included within other liabilities on the consolidated statements of financial condition, was $12 million and $11 million at December 31, 2019 and 2018, respectively, and primarily represented payables to certain investment products managed by BlackRock.

Net Capital Requirements

Net Capital Requirements	12 Months Ended
Net Capital Requirements	Dec. 31, 2019
Regulatory Capital Requirements [Abstract]
Net Capital Requirements	21. Net Capital Requirements The Company is required to maintain net capital in certain regulated subsidiaries within a number of jurisdictions, which is partially maintained by retaining cash and cash equivalent investments in those subsidiaries or jurisdictions. As a result, such subsidiaries of the Company may be restricted in their ability to transfer cash between different jurisdictions and to their parents. Additionally, transfers of cash between international jurisdictions may have adverse tax consequences that could discourage such transfers. Banking Regulatory Requirements. BTC, a wholly owned subsidiary of the Company, is chartered as a national bank whose powers are limited to trust and other fiduciary activities and which is subject to regulatory capital requirements administered by the Office of the Comptroller of the Currency. Federal banking regulators would be required to take certain actions and permitted to take other actions in the event of BTC’s failure to meet minimum capital requirements that, if undertaken, could have a direct material effect on the Company’s consolidated financial statements. Quantitative measures established by regulators to ensure capital adequacy require BTC to maintain a minimum Common Equity Tier 1 capital and Tier 1 leverage ratio, as well as Tier 1 and total risk-based capital ratios. Based on BTC’s calculations as of December 31, 201 9 and 201 8 , it exceeded the applicable capital adequacy requirements. Actual For Capital Adequacy Purposes To Be Well Capitalized Under Prompt Corrective Action Provisions (in millions) Amount Ratio Amount Ratio Amount Ratio December 31, 2019 Total capital (to risk weighted assets) $ 686 137.7 % $ 40 8.0 % $ 50 10.0 % Common Equity Tier 1 capital (to risk weighted assets) $ 686 137.7 % $ 22 4.5 % $ 32 6.5 % Tier 1 capital (to risk weighted assets) $ 686 137.7 % $ 30 6.0 % $ 40 8.0 % Tier 1 capital (to average assets) $ 686 72.8 % $ 38 4.0 % $ 47 5.0 % December 31, 2018 Total capital (to risk weighted assets) $ 572 131.1 % $ 35 8.0 % $ 44 10.0 % Common Equity Tier 1 capital (to risk weighted assets) $ 572 131.1 % $ 20 4.5 % $ 28 6.5 % Tier 1 capital (to risk weighted assets) $ 572 131.1 % $ 26 6.0 % $ 35 8.0 % Tier 1 capital (to average assets) $ 572 58.0 % $ 39 4.0 % $ 49 5.0 % Broker-dealers. BlackRock Investments, LLC and BlackRock Execution Services are registered broker-dealers and wholly owned subsidiaries of BlackRock that are subject to the Uniform Net Capital requirements under the Securities Exchange Act of 1934, which requires maintenance of certain minimum net capital levels. Capital Requirements. At December 31, 2019 and 2018, the Company was required to maintain approximately $1.9 billion and $1.8 billion, respectively, in net capital in certain regulated subsidiaries, including BTC, entities regulated by the Financial Conduct Authority and Prudential Regulation Authority in the United Kingdom, and the Company’s broker-dealers. The Company was in compliance with all applicable regulatory net capital requirements

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	12 Months Ended
Accumulated Other Comprehensive Income (Loss)	Dec. 31, 2019
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss)	22. Accumulated Other Comprehensive Income (Loss) The following table presents changes in AOCI by component for 2019, 2018 and 2017: (in millions) 2019 2018 2017 Beginning balance $ (691 ) $ (432 ) $ (716 ) Foreign currency translation adjustments (1) 120 (253 ) 284 Reclassification as a result of adoption of accounting guidance — (6 ) — Ending balance $ (571 ) $ (691 ) $ (432 ) (1) Amounts for 2019 and 2018 include gains from a net investment hedge of $11 million (net of tax expense of $3 million) and $30 million (net of tax expense of $10 million), respectively. Amount for 2017 includes a loss from a net investment hedge of $64 million (net of tax benefit of $38 million).

Capital Stock

Capital Stock	12 Months Ended
Capital Stock	Dec. 31, 2019
Equity [Abstract]
Capital Stock	23. Capital Stock The Company’s authorized common stock and nonvoting participating preferred stock, $0.01 par value, (“Preferred”) consisted of the following: December 31, 2019 December 31, 2018 Common Stock 500,000,000 500,000,000 Nonvoting Participating Preferred Stock Series A Preferred 20,000,000 20,000,000 Series B Preferred 150,000,000 150,000,000 Series C Preferred 6,000,000 6,000,000 Series D Preferred 20,000,000 20,000,000 PNC Capital Contribution. During 2019 and 2018, PNC surrendered to BlackRock 143,458 and 103,064 shares, respectively, of BlackRock Series C Preferred to fund certain LTIP awards and has completed its share delivery obligation in connection with its share surrender agreement. Cash Dividends for Common and Preferred Shares / RSUs. During 2019, 2018 and 2017, the Company paid cash dividends of $13.20 per share (or $2,096 million), $12.02 per share (or $1,968 million) and $10.00 per share (or $1,662 million), respectively. Share Repurchases. During 2019, the Company repurchased 4.0 million common shares under the share repurchase program for $1.7 billion, including a $1.3 billion private transaction that closed on March 25, 2019. At December 31, 2019, there were 5.9 million shares still authorized to be repurchased. The Company’s common and preferred shares issued and outstanding and related activity consist of the following: Shares Issued Shares Outstanding Common Shares Treasury Common Shares Series B Preferred Series C Preferred Common Shares Series B Preferred Series C Preferred December 31, 2016 171,252,185 (9,717,742 ) 823,188 763,660 161,534,443 823,188 763,660 Shares repurchased — (2,647,670 ) — — (2,647,670 ) — — Net issuance of common shares related to employee stock transactions — 1,090,342 — — 1,090,342 — — PNC LTIP capital contribution — — — (517,138 ) — — (517,138 ) December 31, 2017 171,252,185 (11,275,070 ) 823,188 246,522 159,977,115 823,188 246,522 Shares repurchased — (3,511,603 ) — — (3,511,603 ) — — Net issuance of common shares related to employee stock transactions — 1,087,989 — — 1,087,989 — — PNC LTIP capital contribution — — — (103,064 ) — — (103,064 ) December 31, 2018 171,252,185 (13,698,684 ) 823,188 143,458 157,553,501 823,188 143,458 Shares repurchased — (4,018,905 ) — — (4,018,905 ) — — Net issuance of common shares related to employee stock transactions — 841,184 — — 841,184 — — PNC LTIP capital contribution — — — (143,458 ) — — (143,458 ) December 31, 2019 171,252,185 (16,876,405 ) 823,188 — 154,375,780 823,188 —

Restructuring Charge

Restructuring Charge	12 Months Ended
Restructuring Charge	Dec. 31, 2019
Restructuring And Related Activities [Abstract]
Restructuring Charge	24. Restructuring Charge A restructuring charge of $60 million ($47 million after-tax), comprised of $53 million of severance and $7 million of expense related to the accelerated amortization of previously granted equity compensation awards, was recorded in the fourth quarter of 2018 in connection with an initiative to modify the size and shape of the workforce. The table below presents a rollforward of the Company’s restructuring liability for the year ended December 31, 2019 and 2018, which is included in other liabilities on the consolidated statements of financial condition: (in millions) Liability as of December 31, 2017 $ — Additions 60 Accelerated amortization expense of equity-based awards (7 ) Liability as of December 31, 2018 $ 53 Cash payments (53 ) Liability as of December 31, 2019 $ —

Income Taxes

Income Taxes	12 Months Ended
Income Taxes	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Income Taxes	25. Income Taxes The components of income tax expense for 2019, 2018 and 2017, are as follows: (in millions) 2019 2018 2017 Current income tax expense: Federal $ 735 $ 605 $ 1,166 State and local 109 97 36 Foreign 400 600 289 Total net current income tax expense 1,244 1,302 1,491 Deferred income tax expense (benefit): Federal 15 (71 ) (1,382 ) State and local 7 (1 ) 81 Foreign (5 ) (154 ) 80 Total net deferred income tax expense (benefit) 17 (226 ) (1,221 ) Total income tax expense $ 1,261 $ 1,076 $ 270 Income tax expense has been based on the following components of income before taxes, less net income (loss) attributable to NCI: (in millions) 2019 2018 2017 Domestic $ 3,766 $ 3,536 $ 3,280 Foreign 1,971 1,845 1,942 Total $ 5,737 $ 5,381 $ 5,222 The foreign income before taxes includes countries that have statutory tax rates that are different than the US federal statutory tax rate of 21%, such as the United Kingdom, Ireland, Canada and Netherlands. A reconciliation of income tax expense with expected federal income tax expense computed at the applicable federal income tax rate of 21% for 2019 and 2018 and 35% for 2017 is as follows: (in millions) 2019 2018 2017 Statutory income tax expense $ 1,205 21 % $ 1,130 21 % $ 1,834 35 % Increase (decrease) in income taxes resulting from: State and local taxes (net of federal benefit) 96 2 99 2 60 1 Impact of federal, foreign, state, and local tax rate changes on deferred taxes 5 — 0 — (1,637 ) (31 ) Mandatory deemed repatriation tax — — 0 — 477 9 Stock-based compensation awards (23 ) — (64 ) (1 ) (159 ) (3 ) Effect of foreign tax rates (76 ) (1 ) (119 ) (2 ) (337 ) (6 ) Other 54 — 30 — 32 — Income tax expense $ 1,261 22 % $ 1,076 20 % $ 270 5 % Deferred income taxes are provided for the effects of temporary differences between the tax basis of an asset or liability and its reported amount in the consolidated financial statements. These temporary differences result in taxable or deductible amounts in future years. The components of deferred income tax assets and liabilities are shown below: December 31, (in millions) 2019 2018 Deferred income tax assets: Compensation and benefits $ 282 $ 267 Loss carryforwards 84 82 Other 481 362 Gross deferred tax assets 847 711 Less: deferred tax valuation allowances (51 ) (68 ) Deferred tax assets net of valuation allowances 796 643 Deferred income tax liabilities: Goodwill and acquired indefinite-lived intangibles 3,971 3,939 Acquired finite-lived intangibles 179 48 Unrealized investment gains 63 30 Other 142 34 Gross deferred tax liabilities 4,355 4,051 Net deferred tax (liabilities) $ (3,559 ) $ (3,408 ) Deferred income tax assets and liabilities are recorded net when related to the same tax jurisdiction. At December 31, 2019, the Company recorded on the consolidated statement of financial condition deferred income tax assets, within other assets, and deferred income tax liabilities of Income tax expense for 2019 included a $28 million discrete tax benefit, primarily related to stock-based compensation awards that vested in 2019. Income tax expense for 2018 reflected a reduced tax rate associated with The 2017 Tax Cuts and Jobs Act and $81 million of discrete tax benefits, primarily related to changes in the Company’s organizational entity structure and a $64 million discrete tax benefit, related to stock-based compensation awards that vested in 2018. At December 31, 2019 and 2018, the Company had available state net operating loss carryforwards of $1.9 billion and $2.9 billion, respectively, which will begin to expire in 2020. At December 31, 2019 and 2018, the Company had foreign net operating loss carryforwards of $110 million and $76 million, respectively, of which $3 million will begin to expire in 2021 At December 31, 2019 and 2018, the Company had $51 million and $68 million of valuation allowances for deferred income tax assets, respectively, recorded on the consolidated statements of financial condition. Goodwill recorded in connection with the Quellos Transaction has been reduced during the period by the amount of tax benefit realized from tax-deductible goodwill. See Note 11, Goodwill , for further Current income taxes are recorded net on the consolidated statements of financial condition when related to the same tax jurisdiction. At December 31, 2019, the Company had current income taxes receivable and payable of $282 million and $293 million, respectively, recorded in other assets and accounts payable and accrued liabilities, respectively. At December 31, 2018, the Company had current income taxes receivable and payable of $282 million and $341 million, respectively, recorded in other assets and accounts payable and accrued liabilities, respectively. The following tabular reconciliation presents the total amounts of gross unrecognized tax benefits: (in millions) 2019 2018 2017 Balance at January 1 $ 795 $ 629 $ 410 Additions for tax positions of prior years 99 82 161 Reductions for tax positions of prior years (27 ) (15 ) (3 ) Additions based on tax positions related to current year 47 102 67 Lapse of statute of limitations (4 ) (3 ) (6 ) Settlements (10 ) — — Balance at December 31 $ 900 $ 795 $ 629 Included in the balance of unrecognized tax benefits at December 31, 2019, 2018 and 2017, respectively, are $513 million, $462 million and $316 million of tax benefits that, if recognized, would affect the effective tax rate. The Company recognizes interest and penalties related to income tax matters as a component of income tax expense. Related to the unrecognized tax benefits noted above, the Company accrued interest and penalties of $27 million during 2019 and in total, as of December 31, 2019, had recognized a liability for interest and penalties of $133 million. The Company accrued interest and penalties of $30 million during 2018 and in total, as of December 31, 2018, had recognized a liability for interest and penalties of $106 million. The Company accrued interest and penalties of $17 million during 2017 and in total, as of December 31, 2017, had recognized a liability for interest and penalties of $76 million. BlackRock is subject to US federal income tax, state and local income tax, and foreign income tax in multiple jurisdictions. Tax years after 2009 remain open to US federal income tax examination. In June 2014, the Internal Revenue Service commenced its examination of BlackRock’s 2010 through 2012 tax years. During 2019, the Internal Revenue Service commenced its examination of BlackRock’s 2013 through 2015 tax years. While the examination impact on the Company’s consolidated financial statements is undetermined, it is not expected to be material. The Company is currently under audit in several state and local jurisdictions. The significant state and local income tax examinations are in New York State for tax years 2012 through 2014, New York City for tax years 2009 through 2011, and California for tax years 2015 through 2016. No state and local income tax audits cover years earlier than 2009. No state and local income tax audits are expected to result in an assessment material to BlackRock’s consolidated financial statements. Upon conclusion of its examination, Her Majesty’s Revenue and Customs issued a closure notice during 2017 for various UK BlackRock subsidiaries for tax years 2009 and years after. The Company made a decision to pursue litigation for the tax matters included on such notice. BlackRock does not expect the ultimate resolution to result in a material impact to the consolidated financial statements. From time to time, BlackRock may receive or be subject to tax authorities’ assessments and challenges related to income taxes. BlackRock does not currently expect the ultimate resolution of any existing matters to be material to the consolidated financial statements. At December 31, 2019, it is reasonably possible the total amounts of unrecognized tax benefits will change within the next twelve months due to completion of tax authorities’ exams or the expiration of statues of limitations. Management estimates that the existing liability for uncertain tax positions could decrease by approximately $5 million to $20 million within the next twelve months.

Earnings Per Share

Earnings Per Share	12 Months Ended
Earnings Per Share	Dec. 31, 2019
Earnings Per Share [Abstract]
Earnings Per Share	26. Earnings Per Share The following table sets forth the computation of basic and diluted EPS for 2019, 2018 and 2017 under the treasury stock method: (in millions, except shares and per share data) 2019 2018 2017 Net income attributable to BlackRock $ 4,476 $ 4,305 $ 4,952 Basic weighted-average shares outstanding 156,014,343 160,301,116 162,160,601 Dilutive effect of nonparticipating RSUs and stock options 1,445,203 1,647,616 2,254,434 Total diluted weighted-average shares outstanding 157,459,546 161,948,732 164,415,035 Basic earnings per share $ 28.69 $ 26.86 $ 30.54 Diluted earnings per share $ 28.43 $ 26.58 $ 30.12 Anti-dilutive RSUs and stock options for 2019, 2018 and 2017 were immaterial. In addition, performance-based RSUs and stock options are excluded from potential dilution until the designated performance conditions are met.

Segment Information

Segment Information	12 Months Ended
Segment Information	Dec. 31, 2019
Segment Reporting [Abstract]
Segment Information	27. Segment Information The Company’s management directs BlackRock’s operations as one business, the asset management business. The Company utilizes a consolidated approach to assess performance and allocate resources. As such, the Company operates in one business segment. The following table illustrates total revenue for 2019, 2018 and 2017 by geographic region. These amounts are aggregated on a legal entity basis and do not necessarily reflect where the customer resides or affiliated services are provided. (in millions) Revenue 2019 2018 2017 Americas $ 9,703 $ 9,303 $ 8,798 Europe 4,158 4,217 4,126 Asia-Pacific 678 678 676 Total revenue $ 14,539 $ 14,198 $ 13,600 See Note 17, Revenue The following table illustrates long-lived assets that consist of goodwill and property and equipment at December 31, 2019 and 2018 by geographic region. These amounts are aggregated on a legal entity basis and do not necessarily reflect where the asset is physically located. (in millions) Long-lived Assets 2019 2018 Americas $ 13,830 $ 13,780 Europe 1,360 303 Asia-Pacific 87 86 Total long-lived assets $ 15,277 $ 14,169 Americas is primarily comprised of the United States, Latin America and Canada, while Europe is primarily comprised of the United Kingdom, the Netherlands and Luxembourg. Asia-Pacific is primarily comprised of Hong Kong, Australia, Japan and Singapore.

Selected Quarterly Financial Da

Selected Quarterly Financial Data	12 Months Ended
Selected Quarterly Financial Data	Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]
Selected Quarterly Financial Data	28. Selected Quarterly Financial Data (unaudited) (in millions, except shares and per share data) 2019 1 st (1) 2 nd 3 rd (2) 4 th (3) Revenue $ 3,346 $ 3,524 $ 3,692 $ 3,977 Operating income $ 1,233 $ 1,278 $ 1,502 $ 1,538 Net income $ 1,060 $ 1,013 $ 1,119 $ 1,334 Net income attributable to BlackRock, Inc. $ 1,053 $ 1,003 $ 1,119 $ 1,301 Earnings per share attributable to BlackRock, Inc. common stockholders: Basic $ 6.65 $ 6.46 $ 7.21 $ 8.38 Diluted $ 6.61 $ 6.41 $ 7.15 $ 8.29 Weighted-average common shares outstanding: Basic 158,268,034 155,354,552 155,280,877 155,195,733 Diluted 159,348,431 156,360,741 156,447,387 156,894,201 Dividend declared per share $ 3.30 $ 3.30 $ 3.30 $ 3.30 2018 Revenue $ 3,583 $ 3,605 $ 3,576 $ 3,434 Operating income $ 1,375 $ 1,440 $ 1,396 $ 1,246 Net income $ 1,094 $ 1,078 $ 1,203 $ 927 Net income attributable to BlackRock, Inc. $ 1,089 $ 1,073 $ 1,216 $ 927 Earnings per share attributable to BlackRock, Inc. common stockholders: Basic $ 6.75 $ 6.67 $ 7.59 $ 5.84 Diluted $ 6.68 $ 6.62 $ 7.54 $ 5.78 Weighted-average common shares outstanding: Basic 161,250,018 160,980,960 160,141,506 158,859,998 Diluted 162,918,961 162,161,937 161,378,217 160,450,266 Dividend declared per share $ 2.88 $ 2.88 $ 3.13 $ 3.13 (1) The first quarter of 2019 and 2018 included $22 million and $56 million, respectively, of discrete tax benefit related to stock-based compensation awards that vested in the first quarter of each respective year. (2) The third quarter of 2018 benefited from $90 million of discrete tax items, primarily related to changes in the Company’s organizational entity structure. (3) The fourth quarter of 2018 included a pre-tax restructuring charge of $60 million.

Subsequent Events

Subsequent Events	12 Months Ended
Subsequent Events	Dec. 31, 2019
Subsequent Events [Abstract]
Subsequent Events	29. Subsequent Events In January 2020, the Company issued $1 billion in aggregate principal amount of 2.40% senior unsecured and unsubordinated notes maturing on April 30, 2030 (the “2030 Notes”). The net proceeds of the 2030 Notes will be used for general corporate purposes. Interest of approximately $24 million per year will be payable semi-annually on April 30 and October 30 of each year, commencing April 30, 2020. The 2030 Notes may be redeemed prior to January 30, 2030 in whole or in part at any time, at the option of the Company, at a “make-whole” redemption price or at 100% of the principal amount of the 2030 Notes thereafter. The discount and debt issuance costs will be amortized over the term of the 2030 Notes. On January 29, 2020, the Board of Directors approved BlackRock’s quarterly dividend of $3.63 per share to be paid on March 23, 2020 to stockholders of record at the close of business on March 5, 2020. On February 13, 2020, BlackRock announced the establishment of The BlackRock Foundation (the “Foundation”) and the contribution of its remaining stake in PennyMac Financial Services, Inc. to the new Foundation and the BlackRock Charitable Fund, which BlackRock established in 2013. The contribution will result in an operating expense of $589 million, which is expected to be offset by an approximately $125 million noncash, nonoperating pre-tax gain on the contributed shares and a tax benefit of approximately $241 million. The contribution will provide long-term funding for BlackRock’s philanthropic investments and partnerships. The Company conducted a review for additional subsequent events and determined that no subsequent events had occurred that would require accrual or additional disclosures.

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 These consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) and include the accounts of the Company and its controlled subsidiaries. Noncontrolling interests (“NCI”) on the consolidated statements of financial condition represents the portion of consolidated sponsored investment funds in which the Company does not have direct equity ownership. Accounts and transactions between consolidated entities have been eliminated. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expense during the reporting periods. Actual results could differ from those estimates. Certain prior period presentations and disclosures, while not required to be recast, were reclassified to ensure comparability with current period classifications. The prior year amounts related to the Company’s consolidated variable interest entities have been reclassified to cash and cash equivalents, investments, other assets and other liabilities within the Company’s consolidated statement of financial condition for consistency with the current year’s presentation. In addition, conforming changes were made to the prior year amounts within the statements of cash flows and the related notes to the consolidated financial statements. The reclassifications had no effect on the previously reported total stockholders’ equity, results of operations, or cash flows from operating, investing or financing activities.
Accounting Pronouncements Adopted in 2019	Accounting Pronouncements Adopted in 2019 Leases . In February 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-02, , and several amendments (collectively, “ASU 2016-02”), which requires lessees to recognize assets and liabilities arising from most operating leases on the consolidated statements of financial condition. The Company adopted ASU 2016-02 on its effective date of January 1, 2019 on a modified retrospective basis and elected not to apply ASU 2016-02 to the comparative periods presented. Under this transition method, any cumulative effect adjustment is recognized in the opening balance of retained earnings in the period of adoption. The Company elected the package of practical expedients to alleviate certain operational complexities related to the adoption, which allowed the Company to carry forward the existing lease classification. The Company elected to account for lease and non-lease components as a single component for its leases. The Company also elected the short-term lease practical expedient. Consequently, leases with an initial term of 12 months or less are not recorded on the consolidated statement of financial condition. Upon adoption of ASU 2016-02, the Company recorded a net increase of approximately $0.7 billion in its assets and liabilities related to the right-of-use (“ROU”) asset and lease liability for its operating leases. The adoption of ASU 2016-02 did not have a material impact on the consolidated statement of income or cash flows. See Note 13, Leases
Cash and Cash Equivalents	Cash and Cash Equivalents . Cash and cash equivalents primarily consists of cash, money market funds and short-term, highly liquid investments with original maturities of three months or less in which the Company is exposed to market and credit risk. Cash and cash equivalent balances that are legally restricted from use by the Company are recorded in other assets on the consolidated statements of financial condition. Cash balances maintained by consolidated VIEs and voting rights entities (“VREs”) are not considered legally restricted and are included in cash and cash equivalents on the consolidated statements of financial condition
Investments	Investments Investments in Debt Securities. The Company classifies debt investments as available-for-sale, held-to-maturity or trading based on the Company’s intent to sell the security or, its intent and ability to hold the debt security to maturity. Available-for-sale securities are those securities that are not classified as trading or held-to-maturity. Available-for-sale securities include certain investments in collateralized loan obligations (“CLOs”) and are carried at fair value on the consolidated statements of financial condition with changes in fair value recorded in accumulated other comprehensive income (loss) (“AOCI”) within stockholders’ equity in the period of the change. Upon the disposition of an available-for-sale security, the Company reclassifies the gain or loss on the security from AOCI to nonoperating income (expense) on the consolidated statements of income. Held-to-maturity securities are purchased with the positive intent and ability to be held to maturity and are recorded at amortized cost on the consolidated statements of financial condition. Trading securities are those investments that are purchased principally for the purpose of selling them in the near term. Trading securities are carried at fair value on the consolidated statements of financial condition with changes in fair value recorded in nonoperating income (expense) on the consolidated statements of income. Trading securities include certain investments in CLOs for which the fair value option is elected in order to reduce operational complexity of bifurcating embedded derivatives. Investments in Equity Securities. Equity securities are generally carried at fair value on the consolidated statements of financial condition with changes in the fair value recorded through net income (“FVTNI”) within nonoperating income (expense). For nonmarketable equity securities, the Company generally elects to apply the practicality exception to fair value measurement, under which such securities will be measured at cost, less impairment, plus or minus observable price changes for identical or similar securities of the same issuer with such changes recorded in the consolidated statements of income. Dividends received are recorded as dividend income within nonoperating income (expense). Equity Method. The Company applies the equity method of accounting for equity investments where the Company does not consolidate the investee, but can exert significant influence over the financial and operating policies of the investee. The Company’s share of the investee’s underlying net income or loss is recorded as net gain (loss) on investments within nonoperating income (expense) and as other revenue for certain corporate minority investments since such investees are considered to be an extension of the Company’s core business. The Company’s share of net income of the investee is recorded based upon the most current information available at the time, which may precede the date of the consolidated statement of financial condition. Distributions received reduce the Company’s carrying value of the investee and the cost basis if deemed to be a return of capital. Impairments of Investments. Management periodically assesses equity method, available-for-sale and held-to-maturity investments for other-than-temporary impairment (“OTTI”). If an OTTI exists, an impairment charge would be recorded for the excess of the carrying amount of the investment over its estimated fair value in the consolidated statements of income. For equity method investments and held-to-maturity investments, if circumstances indicate that an OTTI may exist, the investments are evaluated using market values, where available, or the expected future cash flows of the investment. For the Company’s investments in CLOs, the Company reviews cash flow estimates over the life of each CLO investment. On a quarterly basis, if the present value of the estimated future cash flows is lower than the carrying value of the investment and there is an adverse change in estimated cash flows, an impairment is considered to be other-than-temporary. In addition, for nonmarketable equity securities that are accounted for under the measurement alternative to fair value, the Company applies the impairment model that does not require the Company to consider whether the impairment is other-than-temporary.
Consolidation	Consolidation. The Company performs an analysis for investment products to determine if the product is a VIE or a VRE. Assessing whether an entity is a VIE or a VRE involves judgment and analysis. Factors considered in this assessment include the entity’s legal organization, the entity’s capital structure and equity ownership, and any related party or de facto agent implications of the Company’s involvement with the entity. Investments that are determined to be VIEs are consolidated if the Company is the primary beneficiary (“PB”) of the entity. VREs are typically consolidated if the Company holds the majority voting interest. Upon the occurrence of certain events (such as contributions and redemptions, either by the Company, or third parties, or amendments to the governing documents of the Company’s investment products), management reviews and reconsiders its previous conclusion regarding the status of an entity as a VIE or a VRE. Additionally, management continually reconsiders whether the Company is deemed to be a VIE’s PB that consolidates such entity. Consolidation of Variable Interest Entities . Certain investment products for which a controlling financial interest is achieved through arrangements that do not involve or are not directly linked to voting interests are deemed VIEs. BlackRock reviews factors, including whether or not i) the entity has equity at risk that is sufficient to permit the entity to finance its activities without additional subordinated support from other parties and ii) the equity holders at risk have the obligation to absorb losses, the right to receive residual returns, and the right to direct the activities of the entity that most significantly impact the entity’s economic performance, to determine if the investment product is a VIE. BlackRock re-evaluates such factors as facts and circumstances change. The PB of a VIE is defined as the variable interest holder that has a controlling financial interest in the VIE. A controlling financial interest is defined as (i) the power to direct the activities of the VIE that most significantly impact its economic performance and (ii) the obligation to absorb losses of the entity or the right to receive benefits from the entity that potentially could be significant to the VIE. The Company generally consolidates VIEs in which it holds an economic interest of 10% or greater and deconsolidates such VIEs once equity ownership falls below 10%. Consolidation of Voting Rights Entities . BlackRock is required to consolidate an investee to the extent that BlackRock can exert control over the financial and operating policies of the investee, which generally exists if there is a greater than 50% voting equity interest. Retention of Specialized Investment Company Accounting Principles. Upon consolidation of sponsored investment funds, the Company retains the specialized investment company accounting principles of the underlying funds. All of the underlying investments held by such consolidated sponsored investment funds are carried at fair value with corresponding changes in the investments’ fair values reflected in nonoperating income (expense) on the consolidated statements of income. When the Company no longer controls these funds due to reduced ownership percentage or other reasons, the funds are deconsolidated and accounted for as an equity method investment or equity securities FVTNI if the Company still maintains an investment.
Separate Account Assets and Liabilities	Separate Account Assets and Liabilities . Separate account assets are maintained by BlackRock Life Limited, a wholly owned subsidiary of the Company, which is a registered life insurance company in the United Kingdom, and represent segregated assets held for purposes of funding individual and group pension contracts. The life insurance company does not underwrite any insurance contracts that involve any insurance risk transfer from the insured to the life insurance company. The separate account assets primarily include equity securities, debt securities, money market funds and derivatives. The separate account assets are not subject to general claims of the creditors of BlackRock. These separate account assets and the related equal and offsetting liabilities are recorded as separate account assets and separate account liabilities on the consolidated statements of financial condition. The net investment income attributable to separate account assets supporting individual and group pension contracts accrues directly to the contract owner and is not reported on the consolidated statements of income. While BlackRock has no economic interest in these separate account assets and liabilities, BlackRock earns policy administration and management fees associated with these products, which are included in investment advisory, administration fees and securities lending revenue on the consolidated statements of income.
Separate Account Collateral Assets Held and Liabilities Under Securities Lending Agreements	Separate Account Collateral Assets Held and Liabilities Under Securities Lending Agreements. The Company facilitates securities lending arrangements whereby securities held by separate accounts maintained by BlackRock Life Limited are lent to third parties under global master securities lending agreements. In exchange, the Company receives legal title to the collateral with minimum values generally ranging from approximately 102% to 112% of the value of the securities lent in order to reduce counterparty risk. The required collateral value is calculated on a daily basis. The global master securities lending agreements provide the Company the right to request additional collateral or, in the event of borrower default, the right to liquidate collateral. The securities lending transactions entered into by the Company are accompanied by an agreement that entitles the Company to request the borrower to return the securities at any time; therefore, these transactions are not reported as sales. The Company records on the consolidated statements of financial condition the cash and noncash collateral received under these BlackRock Life Limited securities lending arrangements as its own asset in addition to an equal and offsetting collateral liability for the obligation to return the collateral. The securities lending revenue earned from lending securities held by the separate accounts is included in investment advisory, administration fees and securities lending revenue on the consolidated statements of income.
Property and Equipment	Property and Equipment . Property and equipment are recorded at cost less accumulated depreciation. Depreciation is generally determined by cost less any estimated residual value using the straight-line method over the estimated useful lives of the various classes of property and equipment. Leasehold improvements are amortized using the straight-line method over the shorter of the estimated useful life or the remaining lease term. The Company capitalizes certain costs incurred in connection with developing or obtaining software within property and equipment. Capitalized software costs are amortized, beginning when the software product is ready for its intended use, over the estimated useful life of the software of approximately three years.
Goodwill and Intangible Assets	Goodwill and Intangible Assets . Goodwill represents the cost of a business acquisition in excess of the fair value of the net assets acquired. The Company has determined that it has one reporting unit for goodwill impairment testing purposes, the consolidated BlackRock single operating segment, which is consistent with internal management reporting and management's oversight of operations. In its assessment of goodwill for impairment, the Company considers such factors as the book value and market capitalization of the Company. On a quarterly basis, the Company considers if triggering events have occurred that may indicate a potential goodwill impairment. If a triggering event has occurred, the Company performs assessments, which may include reviews of significant valuation assumptions, to determine if goodwill may be impaired. The Company performs an impairment assessment of its goodwill at least annually, as of July 31 st Intangible assets are comprised of indefinite-lived intangible assets and finite-lived intangible assets acquired in a business acquisition. The value of contracts to manage assets in proprietary open-end funds and collective trust funds and certain other commingled products without a specified termination date is generally classified as indefinite-lived intangible assets. The assignment of indefinite lives to such contracts primarily is based upon the following: (i) the assumption that there is no foreseeable limit on the contract period to manage these products; (ii) the Company expects to, and has the ability to, continue to operate these products indefinitely; (iii) the products have multiple investors and are not reliant on a single investor or small group of investors for their continued operation; (iv) current competitive factors and economic conditions do not indicate a finite life; and (v) there is a high likelihood of continued renewal based on historical experience. In addition, trade names/trademarks are considered indefinite-lived intangible assets when they are expected to generate cash flows indefinitely. Indefinite-lived intangible assets and goodwill are not amortized. Finite-lived management contracts, which relate to acquired separate accounts and funds and investor/customer relationships, and technology-related assets that are expected to contribute to the future cash flows of the Company for a specified period of time, are amortized over their remaining useful lives. The Company performs assessments to determine if any intangible assets are potentially impaired and whether the indefinite-lived and finite-lived classifications are still appropriate at least annually, as of July 31 st In evaluating whether it is more likely than not that the fair value of indefinite-lived intangibles is less than its carrying value, BlackRock assesses various significant qualitative factors, including assets under management (“AUM”), revenue basis points, projected AUM growth rates, operating margins, tax rates and discount rates. In addition, the Company considers other factors, including (i) macroeconomic conditions such as a deterioration in general economic conditions, limitations on accessing capital, fluctuations in foreign exchange rates, or other developments in equity and credit markets; (ii) industry and market considerations such as a deterioration in the environment in which the entity operates, an increased competitive environment, a decline in market-dependent multiples or metrics, a change in the market for an entity’s services, or regulatory, legal or political developments; and (iii) entity-specific events, such as a change in management or key personnel, overall financial performance and litigation that could affect significant inputs used to determine the fair value of the indefinite-lived intangible asset. If an indefinite-lived intangible is determined to be more likely than not impaired, then the fair value of the asset is compared with its carrying value and any excess of the carrying value over the fair value would be recognized as an expense in the period in which the impairment occurs. For finite-lived intangible assets, if potential impairment circumstances are considered to exist, the Company will perform a recoverability test using an undiscounted cash flow analysis. Actual results could differ from these cash flow estimates, which could materially impact the impairment conclusion. If the carrying value of the asset is determined not to be recoverable based on the undiscounted cash flow test, the difference between the carrying value of the asset and its current fair value would be recognized as an expense in the period in which the impairment occurs.
Noncontrolling Interests	Noncontrolling Interests. The Company reports noncontrolling interests as equity, separate from the parent’s equity, on the consolidated statements of financial condition. In addition, the Company’s consolidated net income on the consolidated statements of income includes the income (loss) attributable to noncontrolling interest holders of the Company’s consolidated sponsored investment products. Income (loss) attributable to noncontrolling interests is not adjusted for income taxes for consolidated sponsored investment products that are treated as pass-through entities for tax purposes.
Classification and Measurement of Redeemable Securities	Classification and Measurement of Redeemable Securities. The Company includes redeemable noncontrolling interests related to certain consolidated sponsored investment products in temporary equity on the consolidated statements of financial condition.
Treasury Stock	Treasury Stock . The Company records common stock purchased for treasury at cost. At the date of subsequent reissuance, the treasury stock account is reduced by the cost of such stock using the average cost method.
Revenue Recognition	Revenue Recognition. Revenue is recognized upon transfer of control of promised services to customers in an amount to which the Company expects to be entitled in exchange for those services. The Company enters into contracts that can include multiple services, which are accounted for separately if they are determined to be distinct. Consideration for the Company’s services is generally in the form of variable consideration because the amount of fees is subject to market conditions that are outside of the Company’s influence. The Company includes variable consideration in revenue when it is no longer probable of significant reversal, i.e. when the associated uncertainty is resolved. For some contracts with customers, the Company has discretion to involve a third party in providing services to the customer. Generally, the Company is deemed to be the principal in these arrangements because the Company controls the promised services before they are transferred to customers, and accordingly presents the revenue gross of related costs. Investment Advisory, Administration Fees and Securities Lending Revenue. Investment advisory and administration fees are recognized as the services are performed over time because the customer is receiving and consuming the benefits as they are provided by the Company. Fees are primarily based on agreed-upon percentages of AUM and recognized for services provided during the period, which are distinct from services provided in other periods. Such fees are affected by changes in AUM, including market appreciation or depreciation, foreign exchange translation and net inflows or outflows. Investment advisory and administration fees for investment funds are shown net of fee waivers. In addition, the Company may contract with third parties to provide sub-advisory services on its behalf. The Company presents the investment advisory fees and associated costs to such third-party advisors on a gross basis where it is deemed to be the principal and on a net basis where it is deemed to be the agent. Management judgment involved in making these assessments is focused on ascertaining whether the Company is primarily responsible for fulfilling the promised service. The Company earns revenue by lending securities on behalf of clients, primarily to highly rated banks and broker-dealers. Revenue is recognized over time as services are performed. Generally, the securities lending fees are shared between the Company and the funds or other third-party accounts managed by the Company from which the securities are borrowed. Investment Advisory Performance Fees / Carried Interest. The Company receives investment advisory performance fees, including incentive allocations (carried interest) from certain actively managed investment funds and certain separately managed accounts. These performance fees are dependent upon exceeding specified relative or absolute investment return thresholds, which may vary by product or account, and include monthly, quarterly, annual or longer measurement periods. Performance fees, including carried interest, are recognized when it is determined that they are no longer probable of significant reversal (such as upon the sale of a fund’s investment or when the amount of AUM becomes known as of the end of a specified measurement period). Given the unique nature of each fee arrangement, contracts with customers are evaluated on an individual basis to determine the timing of revenue recognition. Significant judgement is involved in making such determination. Performance fees typically arise from investment management services that began in prior reporting periods. Consequently, a portion of the fees the Company recognizes may be partially related to the services performed in prior periods that meet the recognition criteria in the current period. At each reporting date, the Company considers various factors in estimating performance fees to be recognized, including carried interest. These factors include but are not limited to whether: (1) the fees are dependent on the market and thus are highly susceptible to factors outside the Company’s influence; (2) the fees have a large number and a broad range of possible amounts; and (3) the funds or separately managed accounts have the ability to invest or reinvest their sales proceeds. The Company is allocated carried interest from certain alternative investment products upon exceeding performance thresholds. The Company may be required to reverse/return all, or part, of such carried interest allocations/distributions depending upon future performance of these funds. Carried interest subject to such clawback provisions is recorded in investments or cash and cash equivalents t o the extent that it is distributed, on its consolidated statements of financial condition . The Company records a liability for deferred carried interest to the extent it receives cash or capital allocations related to carried interest prior to meeting the revenue recognition criteria. A portion of the deferred carried interest may also be paid to certain employees. The ultimate timing of the recognition of performance fee revenue and related compensation expense, if any, for these products is unknown. Technology services revenue. The Company offers investment management technology systems, risk management services, wealth management and digital distribution tools, all on a fee basis. Clients include banks, insurance companies, official institutions, pension funds, asset managers, retail distributors and other investors. Fees earned for technology services are primarily recorded as services are performed over time and are generally determined using the value of positions on the platform, or a fixed-rate basis. Revenue derived from the sale of software licenses is recognized upon the granting of access rights. Distribution Fees. The Company earns distribution and service fees for distributing investment products and providing ongoing shareholder support services to investment portfolios. Distribution fees are passed-through to third-party distributors, which perform various fund distribution services and shareholder servicing of certain funds on the Company’s behalf, and are recognized as distribution and servicing costs. The Company presents distribution fees and related distribution and servicing costs incurred on a gross basis. Distribution fees primarily consist of ongoing distribution fees, shareholder servicing fees and upfront sales commissions for serving as the principal underwriter and/or distributor for certain managed mutual funds. The service of distribution is satisfied at the point in time when an investor makes an investment in a share class of the managed mutual funds. Fees are generally considered variable consideration because they are based on the value of AUM and are uncertain on trade date. Accordingly, the Company recognizes distribution fees over the investment period as the amounts become known and the portion recognized in the current period may relate to distribution services performed in prior periods. Upfront sales commissions are recognized on a trade date basis. Shareholder servicing fees are based on AUM and recognized in revenue as the services are performed. Advisory and other revenue. Advisory and other revenue primarily includes fees earned for advisory services, fees earned for transition management services primarily comprised of commissions recognized in connection with buying and selling securities on behalf of customers, and equity method investment earnings related to certain corporate minority investments. Advisory services fees are determined using fixed-rate fees and are recognized over time as the related services are completed. Commissions related to transition management services are recorded on a trade-date basis as transactions occur.
Stock-based Compensation	Stock-based Compensation . The Company recognizes compensation cost for equity classified awards based on the grant-date fair value of the award. The compensation cost is recognized over the period during which an employee is required to provide service (usually the vesting period) in exchange for the stock-based award. The Company measures the grant-date fair value of restricted stock units (“RSUs”) using the Company’s share price on the date of grant. For employee share options and instruments with market conditions, the Company uses pricing models. Stock option awards may have performance, market and/or service conditions. If an equity award is modified after the grant-date, incremental compensation cost is recognized for an amount equal to the excess of the fair value of the modified award over the fair value of the original award immediately before the modification. Awards under the Company’s stock-based compensation plans vest over various periods. Compensation cost is recorded by the Company on a straight-line basis over the requisite service period for each separate vesting portion of the award as if the award is, in-substance, multiple awards and is adjusted for actual forfeitures as they occur. The Company amortizes the grant-date fair value of stock-based compensation awards made to retirement-eligible employees over the requisite service period. Upon notification of retirement, the Company accelerates the unamortized portion of the award over the contractually required retirement notification period. The Company recognizes all excess tax benefits and deficiencies in income tax expense on the consolidated statements of income, which results in volatility of income tax expense as a result of fluctuations in the Company’s stock price. Accordingly, the Company recorded a discrete income tax benefit of $23 million, $64 million and $151 million during 2019, 2018 and 2017, respectively, for vested RSUs where the grant date stock price was lower than the vesting date stock price. The Company accounts for forfeitures as they occur.
Distribution and Servicing Costs	Distribution and Servicing Costs . Distribution and servicing costs include payments to third parties, primarily associated with distribution and servicing of client investments in certain BlackRock products. Distribution and servicing costs are expensed when incurred.
Direct Fund Expenses	Direct Fund Expense . Direct fund expense, which is expensed as incurred, primarily consists of third-party nonadvisory expense incurred by BlackRock related to certain funds for the use of certain index trademarks, reference data for certain indices, custodial services, fund administration, fund accounting, transfer agent services, shareholder reporting services, audit and tax services as well as other fund-related expense directly attributable to the nonadvisory operations of the fund.
Leases	Leases . The Company determines if a contract is a lease or contains a lease at inception. The Company accounts for its office facility leases as operating leases, which may include escalation clauses that are based on an index or market rate. The Company accounts for lease and non-lease components as a single component for its leases. The Company elected the short-term lease exception for l eases with an initial term of 12 months or less. Consequently, such leases are not recorded on the consolidated statement of financial condition. The Company’s lease terms include options to extend or terminate the lease when it is reasonably certain they will be exercised or not, respectively. Fixed lease payments are included in ROU assets and lease liabilities within other assets and other liabilities, respectively, on the consolidated statement of financial condition. ROU assets and lease liabilities are recognized based on the present value of the se future lease payments over the lease term at the commencement date using the Company’s incremental borrowing rate as the discount rate. Fixed lease payments made over the lease term are recorded as lease expense on a straight-line basis. Variable lease payments based on usage, changes in an index or market rate are expensed as incurred. Upon adoption of ASU 2016-02, for existing leases, the Company elected to determine the discount rate based on the remaining lease term as of January 1, 2019 and for lease payments based on an index or rate to apply the rate at commencement date. For new leases, the discount rates are based on the entire noncancelable lease term.
Foreign Exchange	Foreign Exchange . Foreign currency transactions are recorded at the exchange rates prevailing on the dates of the transactions. Monetary assets and liabilities that are denominated in foreign currencies are subsequently remeasured into the functional currencies of the Company's subsidiaries at the rates prevailing at each balance sheet date. Gains and losses arising on remeasurement are included in general and administration expense on the consolidated statements of income. Revenue and expenses are translated at average exchange rates during the period. Gains or losses resulting from translating foreign currency financial statements into US dollars are included in AOCI, a separate component of stockholders’ equity, on the consolidated statements of financial condition.
Income Taxes	Income Taxes . Deferred income tax assets and liabilities are recognized for the future tax consequences attributable to temporary differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases using currently enacted tax rates in effect for the year in which the differences are expected to reverse. The effect of a change in tax rates on deferred income tax assets and liabilities is recognized on the consolidated statements of income in the period that includes the enactment date. Management periodically assesses the recoverability of its deferred income tax assets based upon expected future earnings, taxable income in prior carryback years, future deductibility of the asset, changes in applicable tax laws and other factors. If management determines that it is not more likely than not that the deferred tax asset will be fully recoverable in the future, a valuation allowance will be established for the difference between the asset balance and the amount expected to be recoverable in the future. This allowance will result in additional income tax expense. Further, the Company records its income taxes receivable and payable based upon its estimated income tax position. Excess tax benefits related to stock-based compensation are recognized as an income tax benefit on the consolidated statements of income and are reflected as operating cash flows on the consolidated statements of cash flows.
Earnings per Share ("EPS")	Earnings per Share (“EPS”) . Basic EPS is calculated by dividing net income applicable to common shareholders by the weighted-average number of shares outstanding during the period. Diluted EPS includes the determinants of basic EPS and common stock equivalents outstanding during the period. Diluted EPS is computed using the treasury stock method. Due to the similarities in terms between BlackRock’s nonvoting participating preferred stock and the Company’s common stock, the Company considers its nonvoting participating preferred stock to be a common stock equivalent for purposes of EPS calculations. As such, the Company has included the outstanding nonvoting participating preferred stock in the calculation of average basic and diluted shares outstanding.
Business Segments	Business Segments . The Company’s management directs BlackRock’s operations as one business, the asset management business. The Company utilizes a consolidated approach to assess performance and allocate resources. As such, the Company operates in one business segment.
Fair Value Measurements	Fair Value Measurements Hierarchy of Fair Value Inputs. The Company uses a fair value hierarchy that prioritizes inputs to valuation approaches used to measure fair value. The fair value hierarchy gives the highest priority to quoted prices (unadjusted) in active markets for identical assets or liabilities and the lowest priority to unobservable inputs. Assets and liabilities measured and reported at fair value are classified and disclosed in one of the following categories: Level 1 Inputs: Quoted prices (unadjusted) in active markets for identical assets or liabilities at the reporting date. • Level 1 assets may include listed mutual funds, ETFs, listed equities and certain exchange-traded derivatives. Level 2 Inputs: Quoted prices for similar assets or liabilities in active markets; quoted prices for identical or similar assets or liabilities that are not active; quotes from pricing services or brokers for which the Company can determine that orderly transactions took place at the quoted price or that the inputs used to arrive at the price are observable; and inputs other than quoted prices that are observable, such as models or other valuation methodologies. • Level 2 assets may include debt securities, investments in CLOs, bank loans, short-term floating-rate notes, asset-backed securities, securities held within consolidated hedge funds, restricted public securities valued at a discount, as well as over-the-counter derivatives, including interest and inflation rate swaps and foreign currency exchange contracts that have inputs to the valuations that generally can be corroborated by observable market data. Level 3 Inputs: Unobservable inputs for the valuation of the asset or liability, which may include nonbinding broker quotes. Level 3 assets include investments for which there is little, if any, market activity. These inputs require significant management judgment or estimation. • Level 3 assets may include direct private equity investments held within consolidated funds, investments in CLOs and bank loans of a consolidated CLO. • Level 3 liabilities include contingent liabilities related to acquisitions valued based upon discounted cash flow analyses using unobservable market data and borrowings of a consolidated CLO. Significance of Inputs. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to the financial instrument. Valuation Approaches. The fair values of certain Level 3 assets and liabilities were determined using various valuation approaches as appropriate, including third-party pricing vendors, broker quotes and market and income approaches. A significant number of inputs used to value equity, debt securities, investments in CLOs and bank loans is sourced from third-party pricing vendors. Generally, prices obtained from pricing vendors are categorized as Level 1 inputs for identical securities traded in active markets and as Level 2 for other similar securities if the vendor uses observable inputs in determining the price. In addition, quotes obtained from brokers generally are nonbinding and categorized as Level 3 inputs. However, if the Company is able to determine that market participants have transacted for the asset in an orderly manner near the quoted price or if the Company can determine that the inputs used by the broker are observable, the quote is classified as a Level 2 input. Investments Measured at NAV. As a practical expedient, the Company uses net asset value (“NAV”) as the fair value for certain investments. The inputs to value these investments may include the Company’s capital accounts for its partnership interests in various alternative investments, including hedge funds, real assets and private equity funds, which may be adjusted by using the returns of certain market indices. The various partnerships generally are investment companies, which record their underlying investments at fair value based on fair value policies established by management of the underlying fund. Fair value policies at the underlying fund generally require the fund to utilize pricing/valuation information from third-party sources, including independent appraisals. However, in some instances, current valuation information for illiquid securities or securities in markets that are not active may not be available from any third-party source or fund management may conclude that the valuations that are available from third-party sources are not reliable. In these instances, fund management may perform model-based analytical valuations that could be used as an input to value these investments. Fair Value Assets and Liabilities of Consolidated CLO. The Company applies the fair value option provisions for eligible assets, including bank loans, held by a consolidated CLO. As the fair value of the financial assets of the consolidated CLO is more observable than the fair value of the borrowings of the consolidated CLO, the Company measures the fair value of the borrowings of the consolidated CLO as the fair value of the assets of the consolidated CLO less the fair value of the Company’s economic interest in the CLO.
Derivatives and Hedging Activities	Derivatives and Hedging Activities . The Company does not use derivative financial instruments for trading or speculative purposes. The Company uses derivative financial instruments primarily for purposes of hedging exposures to fluctuations in foreign currency exchange rates of certain assets and liabilities, and market exposures for certain seed investments. However, certain consolidated sponsored investment funds may also utilize derivatives as a part of their investment strategy. Changes in the fair value of the Company’s derivative financial instruments are recognized in earnings and, where applicable, are offset by the corresponding gain or loss on the related foreign-denominated assets or liabilities or hedged investments, on the consolidated statements of income. The Company may also use financial instruments designated as net investment hedges for accounting purposes to hedge net investments in international subsidiaries whose functional currency is not US dollars. The gain or loss from revaluing accounting hedges of net investments in foreign operations at the spot rate is deferred and reported within AOCI on the consolidated statements of financial condition. Amounts excluded from the effectiveness assessment are reported in the consolidated statements of income using a systematic and rational method. The Company reassesses the effectiveness of its net investment hedge at least quarterly.
Recent Accounting Pronouncements Not Yet Adopted in 2019	Recent Accounting Pronouncements Not Yet Adopted in 2019 Measurement of Credit Losses. In June 2016, the FASB issued ASU 2016-13, (“ASU 2016-13”), which significantly changes the accounting and disclosures for credit losses for most financial assets. The new guidance requires an estimate of expected lifetime credit losses and eliminates the existing recognition thresholds under current models. The adoption of ASU 2016-13, which was effective for the Company on January 1, 2020, did not have a material impact on its consolidated financial statements.

Acquisition (Tables)

Acquisition (Tables)	12 Months Ended
Acquisition (Tables)	Dec. 31, 2019
Business Combinations [Abstract]
Summary of Initial and Revised Fair Values of Assets Acquired and Liabilities Assumed	A summary of the initial and revised fair values of the assets acquired and liabilities assumed in this acquisition is as follows (1) : Initial Revised Estimate of Estimate of (in millions) Fair Value Fair Value Accounts receivable $ 65 $ 61 Finite-lived intangible assets: Customer relationships (2) 452 400 Technology-related (3) 205 203 Trade name (4) 21 14 Goodwill 990 1,044 Other assets 31 49 Deferred income tax liabilities (194 ) (146 ) Other liabilities assumed (64 ) (125 ) Total consideration, net of cash acquired $ 1,506 $ 1,500 Summary of consideration, net of cash acquired: Cash paid including settlement of outstanding debt of approximately $0.2 billion $ 1,555 $ 1,555 Cash acquired (49 ) (55 ) Total consideration, net of cash acquired $ 1,506 $ 1,500 (1) At this time, the Company does not expect additional material changes to the value of the assets acquired or liabilities assumed in conjunction with the transaction. (2) The fair value was determined based on the excess earnings method (a Level 3 input), has a weighted-average estimated useful life of approximately 10 years and is amortized using the accelerated amortization method. (3) The fair value was determined based upon a relief from royalty method (a Level 3 input), has a weighted-average estimated useful life of approximately eight years and is amortized using the accelerated amortization method. (4) The fair value was determined using a relief from royalty method (a Level 3 input), has an estimated useful life of approximately four years and is amortized using the accelerated amortization method.
Summary of Finite-Lived Intangible Assets Remaining Amortization Expense	The finite-lived intangible assets had a weighted-average remaining useful life of approximately nine years with remaining amortization expense as follows: (in millions) Year Amount 2020 $ 60 2021 64 2022 68 2023 69 2024 71 Thereafter 247 Total $ 579

Cash, Cash Equivalents and Re_2

Cash, Cash Equivalents and Restricted Cash (Tables)	12 Months Ended
Cash, Cash Equivalents and Restricted Cash (Tables)	Dec. 31, 2019
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents [Abstract]
Schedule of Reconciliation of Cash, Cash Equivalents and Restricted Cash	The following table provides a reconciliation of cash and cash equivalents reported within the consolidated statements of financial condition to the cash, cash equivalents, and restricted cash reported within the consolidated statements of cash flows. December 31, December 31, (in millions) 2019 2018 Cash and cash equivalents $ 4,829 $ 6,488 Restricted cash included in other assets 17 17 Total cash, cash equivalents and restricted cash $ 4,846 $ 6,505

Investments (Tables)

Investments (Tables)	12 Months Ended
Investments (Tables)	Dec. 31, 2019
Investments Debt And Equity Securities [Abstract]
Summary of Carrying Value of Total Investments	A summary of the carrying value of total investments is as follows: (in millions) December 31, 2019 December 31, 2018 Debt securities: Held-to-maturity investments $ 249 $ 188 Trading securities 1,249 1,660 Total debt securities 1,498 1,848 Equity securities at FVTNI 1,926 1,021 Equity method investments (1) 943 781 Bank loans 204 84 Federal Reserve Bank stock (2) 93 92 Carried interest (3) 528 387 Other investments (4) 297 263 Total investments $ 5,489 $ 4,476 (1) (2) (3) (4)
Summary of Sale Activity of Available-for-Sale-Securities	A summary of sale activity of available-for-sale during 2019, 2018 and 2017 is shown below. Year ended December 31, (in millions) 2019 2018 2017 Sales proceeds $ — $ 173 $ — Net realized gain (loss): Gross realized gains $ — $ — $ — Gross realized losses — — — Net realized gain (loss) $ — $ — $ —
Summary of Cost and Carrying Value of Equity and Trading Debt Securities	A summary of the cost and carrying value of equity and trading debt securities is as follows: December 31, 2019 December 31, 2018 (in millions) Cost Carrying Value Cost Carrying Value Trading debt securities: Corporate debt $ 822 $ 844 $ 800 $ 798 Government debt 268 269 771 756 Asset/mortgage backed debt 141 136 115 106 Total trading debt securities $ 1,231 $ 1,249 $ 1,686 $ 1,660 Equity securities at FVTNI: Deferred compensation plan mutual funds $ 6 $ 23 $ 21 $ 34 Equity securities/multi-asset mutual funds 1,763 1,903 995 987 Total equity securities at FVTNI $ 1,769 $ 1,926 $ 1,016 $ 1,021

Consolidated Sponsored Invest_2

Consolidated Sponsored Investment Products (Tables)	12 Months Ended
Consolidated Sponsored Investment Products (Tables)	Dec. 31, 2019
Statement Of Financial Position [Abstract]
Consolidated VIEs And VREs Recorded in Condensed Consolidated Statements of Financial Condition	The following table presents the balances related to these consolidated sponsored investment products accounted for as VIEs and VREs that were recorded on the consolidated statements of financial condition, including BlackRock’s net interest in these products: December 31, 2019 December 31, 2018 (in millions) VIEs VREs Total VIEs VREs Total Cash and cash equivalents $ 131 $ 10 $ 141 $ 186 $ 59 $ 245 Investments: Trading debt securities 1,059 151 1,210 1,395 233 $ 1,628 Equity securities at FVTNI 1,330 332 1,662 569 291 860 Bank loans 204 — 204 84 — 84 Other investments 194 — 194 263 — 263 Carried interest 514 — 514 369 — 369 Total investments 3,301 483 3,784 2,680 524 3,204 Other assets 68 5 73 876 8 884 Other liabilities (1) (820 ) (20 ) (840 ) (1,374 ) (53 ) (1,427 ) Noncontrolling interests (1,348 ) (34 ) (1,382 ) (1,076 ) (90 ) (1,166 ) BlackRock's net interest in consolidated investment products $ 1,332 $ 444 $ 1,776 $ 1,292 $ 448 $ 1,740 (1) At December 31, 2019 and 2018, other liabilities of VIEs include $195 million and $84 million, respectively, related to borrowings of a consolidated CLO.
Schedule of Nonoperating Gains (Loss) Related to Consolidated Variable Interest Entity	Net gain (loss) related to consolidated VIEs is presented in the following table: (in millions) 2019 2018 2017 Nonoperating net gain (loss) on consolidated VIEs $ 210 $ (105 ) $ 118 Net income (loss) attributable to NCI on consolidated VIEs $ 42 $ (6 ) $ 33

Variable Interest Entities (Tab

Variable Interest Entities (Tables)	12 Months Ended
Variable Interest Entities (Tables)	Dec. 31, 2019
Variable Interest Entity, Not Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Schedule of VIE Assets and Liabilities	At December 31, 2019 and 2018, the Company’s carrying value of assets and liabilities included on the consolidated statements of financial condition pertaining to nonconsolidated VIEs and its maximum risk of loss related to VIEs for which it held a variable interest, but for which it was not the PB, was as follows: (in millions) At December 31, 2019 Investments Advisory Fee Receivables Other Net Assets (Liabilities) Maximum Risk of Loss (1) Sponsored investment products $ 539 $ 71 $ (10 ) $ 627 At December 31, 2018 Sponsored investment products $ 348 $ 43 $ (6 ) $ 408 (1) At December 31, 2019 and 2018, BlackRock’s maximum risk of loss associated with these VIEs primarily related to BlackRock’s investments and the collection of advisory fee receivables.

Fair Value Disclosures (Tables)

Fair Value Disclosures (Tables)	12 Months Ended
Fair Value Disclosures (Tables)	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Assets and Liabilities Measured at Fair Value on Recurring Basis	Assets and liabilities measured at fair value on a recurring basis December 31, 2019 (in millions) Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Investments Measured at NAV (1) Other (2) December 31, 2019 Assets: Investments Debt securities: Held-to-maturity investments $ — $ — $ — $ — $ 249 $ 249 Trading securities — 1,241 8 — — 1,249 Total debt securities — 1,241 8 — 249 1,498 Equity securities at FVTNI: Deferred compensation plan mutual funds 23 — — — — 23 Equity securities/Multi-asset mutual funds 1,903 — — — — 1,903 Total equity securities at FVTNI 1,926 — — — — 1,926 Equity method: Equity and fixed income mutual funds 157 — — — — 157 Hedge funds/funds of hedge funds — — — 220 — 220 Private equity funds — — — 248 — 248 Real assets funds — — — 296 — 296 Other 12 — — 10 — 22 Total equity method 169 — — 774 — 943 Bank loans — 27 177 — — 204 Federal Reserve Bank Stock — — — — 93 93 Carried interest — — — — 528 528 Other investments (3) — — 9 98 190 297 Total investments 2,095 1,268 194 872 1,060 5,489 Other assets (4) 173 — — — — 173 Separate account assets 72,515 29,582 — — 747 102,844 Separate account collateral held under securities lending agreements: Equity securities 10,209 — — — — 10,209 Debt securities — 5,257 — — — 5,257 Total separate account collateral held under securities lending agreements 10,209 5,257 — — — 15,466 Total $ 84,992 $ 36,107 $ 194 $ 872 $ 1,807 123,972 Liabilities: Separate account collateral liabilities under securities lending agreements $ 10,209 $ 5,257 $ — $ — $ — $ 15,466 Other liabilities (5) — 10 388 — — 398 Total $ 10,209 $ 5,267 $ 388 $ — $ — $ 15,864 (1) (2) (3) (4) ( 5 ) Amounts primarily include contingent liabilities related to certain acquisitions (see Note 16, Commitments and Contingencies Assets and liabilities measured at fair value on a recurring basis December 31, 2018 (in millions) Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Investments Measured at NAV (1) Other (2) December 31, 2018 Assets: Investments Debt securities: Held-to-maturity investments $ — $ — $ — $ — $ 188 $ 188 Trading securities — 1,656 4 — — 1,660 Total debt securities — 1,656 4 — 188 1,848 Equity securities at FVTNI: Deferred compensation plan mutual funds 34 — — — — 34 Equity securities/Multi-asset mutual funds 987 — — — — 987 Total equity securities at FVTNI 1,021 — — — — 1,021 Equity method: Equity and fixed income mutual funds 122 — — — — 122 Hedge funds/funds of hedge funds — — — 173 — 173 Private equity funds — — — 116 — 116 Real assets funds — — — 353 — 353 Other — — — 14 3 17 Total equity method 122 — — 656 3 781 Bank loans — 14 70 — — 84 Federal Reserve Bank Stock — — — — 92 92 Carried interest — — — — 387 387 Other investments (3) — — 82 106 75 263 Total investments 1,143 1,670 156 762 745 4,476 Other assets (4) 122 — — — — 122 Separate account assets 63,610 25,810 — — 865 90,285 Separate account collateral held under securities lending agreements: Equity securities 15,066 — — — — 15,066 Debt securities — 5,589 — — — 5,589 Total separate account collateral held under securities lending agreements 15,066 5,589 — — — 20,655 Total $ 79,941 $ 33,069 $ 156 $ 762 $ 1,610 $ 115,538 Liabilities: Separate account collateral liabilities under securities lending agreements $ 15,066 $ 5,589 $ — $ — $ — $ 20,655 Other liabilities (5) — 6 371 — — 377 Total $ 15,066 $ 5,595 $ 371 $ — $ — $ 21,032 (1) (2) (3) (4) (5) Commitments and Contingencies
Changes in Level 3 Assets and Liabilities Measured at Fair Value on Recurring Basis	Changes in Level 3 Assets and Liabilities Measured at Fair Value on a Recurring Basis for 2019 (in millions) December 31, 2018 Realized and Unrealized Gains (Losses) Purchases Sales and Maturities Issuances and Other Settlements (1) Transfers into Level 3 Transfers out of Level 3 (2) December 31, 2019 Total Net Unrealized Gains (Losses) Included in Earnings (3) Assets: Investments: Debt securities: Trading $ 4 $ — $ 10 $ — $ — $ — $ (6 ) $ 8 $ — Total debt securities 4 — 10 — — — (6 ) 8 — Private equity 82 — — — — — (73 ) 9 — Bank loans (4) 70 — 107 — — — — 177 — Total investments 156 — 117 — — — (79 ) 194 — Total Level 3 assets $ 156 $ — $ 117 $ — $ — $ — $ (79 ) $ 194 $ — Liabilities: Other liabilities (4) $ 371 $ (53 ) $ — $ — $ (36 ) $ — $ — $ 388 $ (53 ) Total Level 3 liabilities $ 371 $ (53 ) $ — $ — $ (36 ) $ — $ — $ 388 $ (53 ) (1) Amounts include proceeds from borrowings of a consolidated CLO and contingent liability payments in connection with certain prior acquisitions. (2) Amounts include an investment in a consolidated entity that no longer qualifies as an investment company and is no longer accounted for under a fair value measure. (3) Earnings attributable to the change in unrealized gains (losses) relating to assets and liabilities still held at the reporting date. (4) Amounts include contingent liabilities in connection with certain acquisitions and bank loans and borrowings related to a consolidated CLO. Changes in Level 3 Assets and Liabilities Measured at Fair Value on a Recurring Basis for 201 8 (in millions) December 31, 2017 Realized and Unrealized Gains (Losses) Purchases Sales and Maturities Issuances and Other Settlements (1) Transfers into Level 3 Transfers out of Level 3 December 31, 2018 Total Net Unrealized Gains (Losses) Included in Earnings (2) Assets: Investments: Debt securities Available-for-sale securities (3) $ — $ — $ 26 $ — $ — $ — $ (26 ) $ — $ — Trading — — 9 — — — (5 ) 4 — Total debt securities — — 35 — — — (31 ) 4 — Private equity 116 (20 ) — (14 ) — — — 82 (20 ) Bank loans (4) — — — — 70 — — 70 — Total investments 116 (20 ) 35 (14 ) 70 — (31 ) 156 (20 ) Total Level 3 assets $ 116 $ (20 ) $ 35 $ (14 ) $ 70 $ — $ (31 ) $ 156 $ (20 ) Liabilities: Other liabilities (4) $ 236 $ (65 ) $ — $ — $ 70 $ — $ — $ 371 $ (65 ) Total Level 3 liabilities $ 236 $ (65 ) $ — $ — $ 70 $ — $ — $ 371 $ (65 ) (1) Issuances and other settlements amount includes a contingent liability in connection with an acquisition, partially offset by a contingent liability payment in connection with a prior acquisition. (2) Earnings attributable to the change in unrealized gains (losses) relating to assets and liabilities still held at the reporting date. (3) Amounts include investments in CLOs. (4) Amounts include contingent liabilities in connection with certain acquisitions and bank loans and borrowings related to the consolidation of one additional CLO.
Fair Value of Financial Assets and Financial Liabilities	Disclosures of Fair Value for Financial Instruments Not Held at Fair Value . At December 31, 2019 and 2018, the fair value of the Company’s financial instruments not held at fair value are categorized in the table below. December 31, 2019 December 31, 2018 (in millions) Carrying Amount Estimated Fair Value Carrying Amount Estimated Fair Value Fair Value Hierarchy Financial Assets (1) Cash and cash equivalents $ 4,829 $ 4,829 $ 6,488 $ 6,488 Level 1 (2) (3) Other assets 68 68 18 18 Level 1 (2) (4) Financial Liabilities: Long-term borrowings 4,955 5,254 4,979 5,034 Level 2 (5) (1) See Note 5 , Investments (2) Cash and cash equivalents are carried at either cost or amortized cost, which approximates fair value due to their short-term maturities. (3) At December 31, 2019 and 2018, approximately $674 million and $173 million of money market funds were recorded within cash and cash equivalents on the consolidated statements of financial condition. Money market funds are valued based on quoted market prices, or $1.00 per share, which generally is the NAV of the fund. (4) Other assets include restricted cash and cash collateral deposited with certain derivative counterparties. The carrying values of these assets approximate fair value due to their short-term maturities. (5) Long-term borrowings are recorded at amortized cost, net of debt issuance costs. The fair value of the long-term borrowings, including the current portion of long-term borrowings, is determined using market prices at the end of December 2019 and 2018, respectively. See Note 15, Borrowings
Investments in Certain Entities that Calculate Net Asset Value per Share	The following tables list information regarding all investments that use a fair value measurement to account for both their financial assets and financial liabilities in their calculation of a NAV per share (or equivalent). December 31, 2019 (in millions) Ref Fair Value Total Unfunded Commitments Redemption Frequency Redemption Notice Period Equity method: (1) Hedge funds/funds of hedge funds (a) $ 220 $ 120 Daily/Monthly (27%) Quarterly (15%) N/R (58%) 1 – 90 days Private equity funds (b) 248 212 N/R N/R Real assets funds (c) 296 120 Quarterly (57%) N/R (43%) 60 days Other 10 9 N/R N/R Consolidated sponsored investment products: Private equity funds of funds (d) 23 9 N/R N/R Hedge fund (a) 3 — Quarterly 90 days Real assets funds (c) 72 83 NR NR Total $ 872 $ 553 December 31, 2018 (in millions) Ref Fair Value Total Unfunded Commitments Redemption Frequency Redemption Notice Period Equity method: (1) Hedge funds/funds of hedge funds (a) $ 173 $ 96 Daily/Monthly (30%) Quarterly (18%) N/R (52%) 1 – 90 days Private equity funds (b) 116 83 N/R N/R Real assets funds (c) 353 93 Quarterly (68%) N/R (32%) 60 days Other 14 16 Daily (80%) N/R (20%) 5 days Consolidated sponsored investment products: Private equity funds of funds (d) 48 18 N/R N/R Hedge fund (a) 3 — Quarterly 90 days Real assets funds (c) 55 37 NR NR Total $ 762 $ 343 N/R – not redeemable (1) Comprised of equity method investments, which include investment companies that account for their financial assets and most financial liabilities under fair value measures; therefore, the Company’s investment in such equity method investees approximates fair value. (a) This category includes hedge funds and funds of hedge funds that invest primarily in equities, fixed income securities, distressed credit, opportunistic and mortgage instruments and other third-party hedge funds. The fair values of the investments have been estimated using the NAV of the Company’s ownership interest in partners’ capital. The liquidation period for the investments in the funds that are not subject to redemption is unknown at both December 31, 2019 and 2018. (b) This category includes several private equity funds that initially invest in nonmarketable securities of private companies, which ultimately may become public in the future. The fair values of these investments have been estimated using capital accounts representing the Company’s ownership interest in the funds as well as other performance inputs. The Company’s investment in each fund is not subject to redemption and is normally returned through distributions as a result of the liquidation of the underlying assets of the private equity funds. The liquidation period for the investments in the funds that are not subject to redemption is unknown at both December 31, 2019 and 2018. (c) This category includes several real assets funds that invest directly in real estate, real estate related assets and infrastructure. The fair values of the investments have been estimated using capital accounts representing the Company’s ownership interest in the funds. The Company’s investments that are not subject to redemption or are not currently redeemable are normally returned through distributions as a result of the liquidation of the underlying assets of the funds. The liquidation period for the investments in the funds that are not subject to redemption is unknown at both December 31, 2019 and December 31, 2018. The total remaining unfunded commitments to other third-party funds were $203 million and $130 million at December 31, 2019 and December 31, 2018, respectively. The Company had contractual obligations to the consolidated funds of $172 million and $117 million at December 31, 2019 and 2018, respectively. (d) This category includes the underlying third-party private equity funds within consolidated BlackRock sponsored private equity funds of funds. The fair values of the investments in the third-party funds have been estimated using capital accounts representing the Company’s ownership interest in each fund in the portfolio as well as other performance inputs. These investments are not subject to redemption; however, for certain funds, the Company may sell or transfer its interest, which may need approval by the general partner of the underlying funds. Due to the nature of the investments in this category, the Company reduces its investment by distributions that are received through the realization of the underlying assets of the funds. The liquidation period for the investments in the funds that are not subject to redemption is unknown at both December 31, 2019 and December 31, 2018. The total remaining unfunded commitments to other third-party funds were $9 million and $18 million at December 31, 2019 and 2018, respectively. The Company had contractual obligations to the consolidated funds of $22 million at both December 31, 2019 and 2018.
Summary of Information Related to Bank Loans and Borrowings of Consolidated CLO Recorded within Investments and Borrowings of Consolidated VIEs Respectively for which Fair Value Option was Elected	In addition, the Company elected the fair value option for bank loans and borrowings of a consolidated CLO, recorded within investments and other liabilities, respectively. The following table summarizes the information related to these bank loans and borrowings at December 31, 2019 and 2018: December 31, December 31, (in millions) 2019 2018 CLO Bank loans: Aggregate principal amounts outstanding $ 204 $ 84 Fair value 204 84 Aggregate unpaid principal balance in excess of (less than) fair value $ — $ — CLO Borrowings: Aggregate principal amounts outstanding $ 195 $ 84 Fair value $ 195 $ 84

Derivative and Hedging (Tables)

Derivative and Hedging (Tables)	12 Months Ended
Derivative and Hedging (Tables)	Dec. 31, 2019
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Summary of Gains (Losses) Recognized in Consolidated Statements of Income on Derivative Instruments	The following table presents gains (losses) recognized in the consolidated statements of income on derivative instruments: (in millions) Gains (Losses) Derivative Instruments Statement of Income Classification 2019 2018 2017 Total return swaps Nonoperating income (expense) $ (106 ) $ 54 $ (118 ) Interest rate swaps Nonoperating income (expense) — — (2 ) Forward foreign currency exchange contracts General and administration expense 55 (124 ) 63 Total gain (loss) from derivative instruments $ (51 ) $ (70 ) $ (57 )

Property and Equipment (Tables)

Property and Equipment (Tables)	12 Months Ended
Property and Equipment (Tables)	Dec. 31, 2019
Property Plant And Equipment [Abstract]
Schedule of Property and Equipment	Property and equipment consists of the following: Estimated useful December 31, (in millions) life-in years 2019 2018 Property and equipment: Land N/A $ 6 $ 6 Building 39 33 33 Building improvements 15 30 30 Leasehold improvements 1-15 565 534 Equipment and computer software 3 672 541 Other transportation equipment 10 136 135 Furniture and fixtures 7 70 66 Construction in progress N/A 83 48 Total 1,595 1,393 Less: accumulated depreciation and amortization 880 750 Property and equipment, net $ 715 $ 643

Goodwill (Tables)

Goodwill (Tables)	12 Months Ended
Goodwill (Tables)	Dec. 31, 2019
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill Activity	Goodwill activity during 2019 and 2018 was as follows: (in millions) 2019 2018 Beginning of year balance $ 13,526 $ 13,220 Acquisitions 1,044 316 Goodwill adjustments related to Quellos and other (1) (8 ) (10 ) End of year balance $ 14,562 $ 13,526 (1) Amounts primarily resulted from a decline related to tax benefits realized from tax-deductible goodwill in excess of book goodwill from the acquisition of the fund-of-funds business of Quellos Group, LLC in October 2007 (the “Quellos Transaction”). Goodwill related to the Quellos Transaction will continue to be reduced in future periods by the amount of tax benefits realized from tax-deductible goodwill in excess of book goodwill from the Quellos Transaction. The balance of the Quellos tax-deductible goodwill in excess of book goodwill was approximately

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 at December 31, 2019 and 2018 consisted of the following: (in millions) Remaining Weighted- Average Estimated Useful Life Gross Carrying Amount Accumulated Amortization Net Carrying Amount At December 31, 2019 Indefinite-lived intangible assets: Management contracts N/A $ 16,169 $ — $ 16,169 Trade names / trademarks N/A 1,403 — 1,403 License N/A 6 — 6 Total indefinite-lived intangible assets 17,578 — 17,578 Finite-lived intangible assets: Management contracts 4.8 283 135 148 Investor/customer relationships 9.2 476 39 437 Technology-related 7.4 203 9 194 Trade names / trademarks 3.3 14 2 12 Total finite-lived intangible assets 7.8 976 185 791 Total intangible assets $ 18,554 $ 185 $ 18,369 At December 31, 2018 Indefinite-lived intangible assets: Management contracts N/A $ 16,169 $ — $ 16,169 Trade names / trademarks N/A 1,403 — 1,403 License N/A 6 — 6 Total indefinite-lived intangible assets 17,578 — 17,578 Finite-lived intangible assets: Management contracts 5.2 439 237 202 Investor/customer relationships 10.7 66 7 59 Total finite-lived intangible assets 6.5 505 244 261 Total intangible assets $ 18,083 $ 244 $ 17,839 N/A – Not Applicable
Estimated Amortization Expense for Finite-lived Intangible Assets	Estimated amortization expense for finite-lived intangible assets for each of the five succeeding years is as follows: (in millions) Year Amount 2020 $ 106 2021 107 2022 103 2023 97 2024 92

Leases (Tables)

Leases (Tables)	12 Months Ended
Leases (Tables)	Dec. 31, 2019
Leases [Abstract]
Components of Lease Cost	The following table presents components of lease cost included in general and administration expense on the consolidated statements of income: (in millions) 2019 Lease cost (1) Operating lease cost (2) $ 141 Variable lease cost (3) 39 Total lease cost $ 180 (1) Rent expense and certain office equipment expense under lease agreements amounted to $135 million and $132 million in 2018 and 2017, respectively. (2) Amount includes short-term leases, which are immaterial for 2019. (3) Amount includes operating lease payments, which may be adjusted based on usage, changes in an index or market rate.
Schedule of Operating Leases Included on Consolidated Statement of Financial Condition	The following table presents operating leases included on the consolidated statement of financial condition: (in millions) Statement of Financial Condition Classification December 31, 2019 Statement of Financial Condition information: Operating lease ROU assets Other assets $ 669 Operating lease liabilities Other liabilities $ 776
Schedule of Supplemental Information Related to Operating Lease	Supplemental information related to operating leases is summarized below: (in millions) December 31, 2019 Supplemental cash flow information: Cash paid for amounts included in the measurement of operating lease liabilities $ 142 Supplemental noncash information: ROU assets in exchange for operating lease liabilities in connection with the adoption of ASU 2016-02 $ 661 ROU assets in exchange for operating lease liabilities $ 117 December 31, 2019 Lease term and discount rate: Weighted-average remaining lease term 9 years Weighted-average discount rate 3 %
Schedule of Maturity of Operating Lease Liabilities	(in millions) Maturity of operating lease liabilities at December 31, 2019 Amount (1) 2020 $ 152 2021 147 2022 142 2023 91 2024 58 Thereafter 294 Total lease payments $ 884 Less: imputed interest 108 Present value of lease liabilities $ 776 (1) Amount excludes $1.5 billion of legally binding minimum lease payments for leases signed but not yet commenced.
Future Minimum Commitments under Operating Leases	The table below summarizes BlackRock’s future minimum commitments under the operating leases at December 31, 2018, reflecting accounting guidance prior to the adoption of the new lease accounting standard: (in millions) Operating lease commitments at December 31, 2018 Amount 2019 $ 145 2020 139 2021 130 2022 121 2023 106 Thereafter 1,516 Total $ 2,157

Borrowings (Tables)

Borrowings (Tables)	12 Months Ended
Borrowings (Tables)	Dec. 31, 2019
Debt Disclosure [Abstract]
Carrying Value and Fair Value of Long-Term Borrowings Determined Market Prices EUR/USD Foreign Exchange Rate	The carrying value and fair value of long-term borrowings determined using market prices and EUR/USD foreign exchange rate at December 31, 2019 included the following: (in millions) Maturity Unamortized Discount and Debt Issuance Costs Carrying Value Fair Value 4.25% Notes due 2021 $ 750 $ (1 ) $ 749 $ 775 3.375% Notes due 2022 750 (2 ) 748 777 3.50% Notes due 2024 1,000 (4 ) 996 1,062 1.25% Notes due 2025 786 (5 ) 781 832 3.20% Notes due 2027 700 (5 ) 695 740 3.25% Notes due 2029 1,000 (14 ) 986 1,068 Total Long-term Borrowings $ 4,986 $ (31 ) $ 4,955 $ 5,254

Revenue (Tables)

Revenue (Tables)	12 Months Ended
Revenue (Tables)	Dec. 31, 2019
Revenue From Contract With Customer [Abstract]
Summary of Investment Advisory, Administration Fees and Securities Lending Revenue by Type	The table below presents detail of revenue for 2019, 2018 and 2017 and includes the product mix of investment advisory, administration fees and securities lending revenue (collectively “base fees”) and performance fees. (in millions) 2019 2018 2017 Investment advisory, administration fees and securities lending revenue: Equity: Active $ 1,554 $ 1,654 $ 1,654 iShares ETFs 3,495 3,549 3,220 Non-ETF index 667 685 680 Equity subtotal 5,716 5,888 5,554 Fixed income: Active 1,918 1,840 1,717 iShares ETFs 963 825 808 Non-ETF index 405 387 344 Fixed income subtotal 3,286 3,052 2,869 Multi-asset 1,148 1,176 1,157 Alternatives: Illiquid alternatives 488 348 281 Liquid alternatives 413 384 358 Currency and commodities (1) 108 98 91 Alternatives subtotal 1,009 830 730 Long-term 11,159 10,946 10,310 Cash management 618 607 558 Total base fees 11,777 11,553 10,868 Investment advisory performance fees: Equity 36 91 152 Fixed income 10 8 34 Multi-asset 19 19 33 Alternatives: Illiquid alternatives 136 70 62 Liquid alternatives 249 224 313 Alternatives subtotal 385 294 375 Total performance fees 450 412 594 Technology services revenue 974 785 657 Distribution fees: Retrocessions 658 709 675 12b-1 fees (US mutual fund distribution fees) 358 406 466 Other 53 40 42 Total distribution fees 1,069 1,155 1,183 Advisory and other revenue: Advisory 99 113 128 Other 170 180 170 Total advisory and other revenue 269 293 298 Total revenue $ 14,539 $ 14,198 $ 13,600 (1) Amounts include commodity iShares The tables below present the investment advisory, administration fees and securities lending revenue by client type and investment style: (in millions) 2019 2018 2017 By client type: Retail $ 3,411 $ 3,413 $ 3,250 iShares ETFs 4,564 4,468 4,113 Institutional: Active 2,172 2,044 1,955 Index 1,012 1,021 992 Total institutional 3,184 3,065 2,947 Long-term 11,159 10,946 10,310 Cash management 618 607 558 Total $ 11,777 $ 11,553 $ 10,868 By investment style: Active $ 5,510 $ 5,391 $ 5,152 Index and iShares 5,649 5,555 5,158 Long-term 11,159 10,946 10,310 Cash management 618 607 558 Total $ 11,777 $ 11,553 $ 10,868
Schedule of Estimated Investment Advisory, Administration Fees Expected to be Recognized in Future, Related to Unsatisfied Portion of Performance Obligations	The tables below present estimated investment advisory and administration fees expected to be recognized in the future related to the unsatisfied portion of the performance obligations at December 31, 2019 and 2018: December 31, 2019 (in millions) 2020 2021 2022 Thereafter Total Investment advisory and administration fees: Alternatives (1)(2) $ 98 $ 88 $ 74 $ 107 $ 367 December 31, 2018 (in millions) 2019 2020 2021 Thereafter Total Investment advisory and administration fees: Alternatives (1)(2) $ 61 $ 53 $ 42 $ 70 $ 226 (1) Investment advisory and administration fees include management fees related to certain alternative products, which are based on contractual committed capital outstanding at December 31, 2019 and 2018. Actual management fees could be higher to the extent additional committed capital is raised. These fees are generally billed on a quarterly basis in arrears. (2) The Company elected the following practical expedients and therefore does not include amounts related to (1) performance obligations with an original duration of one year or less, and (2) variable consideration related to future service periods.
Schedule of Changes in Deferred Carried Interest Liability	The table below presents changes in the deferred carried interest liability, which is included in other liabilities on the consolidated statements of financial condition, for the year ended December 31, 2019 and 2018: (in millions) 2019 2018 Beginning balance $ 293 $ 219 Net increase (decrease) in unrealized allocations 259 92 Performance fee revenue recognized (75 ) (18 ) Other 6 — Ending balance $ 483 $ 293
Schedule of Estimated Technology Services Revenue Expected to Be Recognized in Future, Related to Unsatisfied Portion of Performance Obligations	The tables below present estimated technology services revenue expected to be recognized in the future related to the unsatisfied portion of the performance obligations at December 31, 2019 and 2018: December 31, 2019 (in millions) 2020 2021 2022 Thereafter Total Technology services revenue (1)(2) $ 117 $ 53 $ 31 $ 20 $ 221 December 31, 2018 (in millions) 2019 2020 2021 Thereafter Total Technology services revenue (1)(2) $ 28 $ 24 $ 18 $ 17 $ 87 (1) Technology services revenue primarily includes upfront payments from customers, which the Company generally recognizes as services are performed. (2) The Company elected the following practical expedients and therefore does not include amounts related to (1) performance obligations with an original duration of one year or less, and (2) variable consideration related to future service periods.
Schedule of Changes in Technology Services Deferred Revenue Liability	The table below presents changes in the technology services deferred revenue liability for the year ended December 31, 2019 and 2018, which is included in other liabilities on the consolidated statements of financial condition: (in millions) 2019 2018 Beginning balance $ 70 $ 62 Additions 86 44 Revenue recognized that was included in the beginning balance (40 ) (36 ) Ending balance $ 116 $ 70

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	12 Months Ended
Stock-Based Compensation (Tables)	Dec. 31, 2019
Components of Stock-Based Compensation Expense	The components of stock-based compensation expense are as follows: (in millions) 2019 2018 2017 Stock-based compensation: Restricted stock and RSUs $ 532 $ 514 $ 524 Long-term incentive plans to be funded by PNC — 14 15 Stock options 35 36 3 Total stock-based compensation $ 567 $ 564 $ 542
Restricted Stock and RSU Activity	Restricted stock and RSU activity for 2019 is summarized below. Outstanding at Restricted Stock and RSUs Weighted- Average Grant Date Fair Value December 31, 2018 2,139,890 $ 429.19 Granted 1,226,249 $ 414.41 Converted (1,047,423 ) $ 379.85 Forfeited (82,264 ) $ 434.02 December 31, 2019 (1) 2,236,452 $ 444.02 (1) At December 31, 2019, approximately 2.0 million awards are expected to vest and 0.2 million awards have vested but have not been converted.
Summary of RSUs/Restricted Stock Granted in Connection with Annual Incentive Compensation under Award Plan	RSUs/restricted stock granted in connection with annual incentive compensation under the Award Plan primarily related to the following: 2019 2018 2017 Awards granted that vest ratably over three years from the date of grant 674,206 527,337 699,991 Awards granted that cliff vest 100% on: January 31, 2020 — — 277,313 January 31, 2021 — 209,201 — January 31, 2022 377,291 — — 1,051,497 736,538 977,304
Performance-Based RSUs [Member]
Restricted Stock and RSU Activity	Performance-based RSU activity for 2019 is summarized below. Outstanding at Performance- Based RSUs Weighted- Average Grant Date Fair Value December 31, 2018 845,285 $ 386.13 Granted 283,014 $ 410.32 Additional shares granted due to attainment of performance measures 2,117 $ 296.57 Converted (360,927 ) $ 296.57 Forfeited (26,571 ) $ 435.33 December 31, 2019 742,918 $ 436.84
Performance-Based Stock Options [Member]
Stock Option Activity	Stock option activity for 2019 is summarized below. Outstanding at Shares Under Option Weighted Average Exercise Price December 31, 2018 2,106,482 $ 513.50 Forfeited (165,337 ) $ 513.50 December 31, 2019 1,941,145 $ 513.50
Schedule of Fair Value of Market Performance-Based Award at Grant Date	The grant-date fair value of the awards issued in 2017 was Grant Year Expected Term (Years) Expected Stock Volatility Expected Dividend Yield Risk-Free Interest Rate 2017 6.56 22.23 % 2.16 % 2.33 %

Related Party Transactions (Tab

Related Party Transactions (Tables)	12 Months Ended
Related Party Transactions (Tables)	Dec. 31, 2019
Related Party Transactions [Abstract]
Revenue for Services Provided to Related Parties	Revenue from Related Parties Revenue for services provided by the Company to these and other related parties are as follows: (in millions) 2019 2018 2017 Investment advisory, administration fees and securities lending revenue (1) $ 8,323 $ 8,226 $ 7,692 Investment advisory performance fees 131 112 143 Technology services revenue (2) 9 9 9 Advisory and other revenue (3) 59 65 59 Total revenue from related parties $ 8,522 $ 8,412 $ 7,903 (1) Amount primarily includes revenue from registered investment companies/and equity method investees. (2) Amount primarily includes revenue from PNC and affiliates. (3) Amount primarily includes revenue from equity method investees.

Net Capital Requirements (Table

Net Capital Requirements (Tables)	12 Months Ended
Net Capital Requirements (Tables)	Dec. 31, 2019
Regulatory Capital Requirements [Abstract]
Summary of Capital Adequacy Requirements	Actual For Capital Adequacy Purposes To Be Well Capitalized Under Prompt Corrective Action Provisions (in millions) Amount Ratio Amount Ratio Amount Ratio December 31, 2019 Total capital (to risk weighted assets) $ 686 137.7 % $ 40 8.0 % $ 50 10.0 % Common Equity Tier 1 capital (to risk weighted assets) $ 686 137.7 % $ 22 4.5 % $ 32 6.5 % Tier 1 capital (to risk weighted assets) $ 686 137.7 % $ 30 6.0 % $ 40 8.0 % Tier 1 capital (to average assets) $ 686 72.8 % $ 38 4.0 % $ 47 5.0 % December 31, 2018 Total capital (to risk weighted assets) $ 572 131.1 % $ 35 8.0 % $ 44 10.0 % Common Equity Tier 1 capital (to risk weighted assets) $ 572 131.1 % $ 20 4.5 % $ 28 6.5 % Tier 1 capital (to risk weighted assets) $ 572 131.1 % $ 26 6.0 % $ 35 8.0 % Tier 1 capital (to average assets) $ 572 58.0 % $ 39 4.0 % $ 49 5.0 %

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) (Tables)	12 Months Ended
Accumulated Other Comprehensive Income (Loss) (Tables)	Dec. 31, 2019
Equity [Abstract]
Changes in AOCI	The following table presents changes in AOCI by component for 2019, 2018 and 2017: (in millions) 2019 2018 2017 Beginning balance $ (691 ) $ (432 ) $ (716 ) Foreign currency translation adjustments (1) 120 (253 ) 284 Reclassification as a result of adoption of accounting guidance — (6 ) — Ending balance $ (571 ) $ (691 ) $ (432 ) (1) Amounts for 2019 and 2018 include gains from a net investment hedge of $11 million (net of tax expense of $3 million) and $30 million (net of tax expense of $10 million), respectively. Amount for 2017 includes a loss from a net investment hedge of $64 million (net of tax benefit of $38 million).

Capital Stock (Tables)

Capital Stock (Tables)	12 Months Ended
Capital Stock (Tables)	Dec. 31, 2019
Equity [Abstract]
Common and Preferred Shares Authorized, Issued and Outstanding and Related Activity	The Company’s authorized common stock and nonvoting participating preferred stock, $0.01 par value, (“Preferred”) consisted of the following: December 31, 2019 December 31, 2018 Common Stock 500,000,000 500,000,000 Nonvoting Participating Preferred Stock Series A Preferred 20,000,000 20,000,000 Series B Preferred 150,000,000 150,000,000 Series C Preferred 6,000,000 6,000,000 Series D Preferred 20,000,000 20,000,000 The Company’s common and preferred shares issued and outstanding and related activity consist of the following: Shares Issued Shares Outstanding Common Shares Treasury Common Shares Series B Preferred Series C Preferred Common Shares Series B Preferred Series C Preferred December 31, 2016 171,252,185 (9,717,742 ) 823,188 763,660 161,534,443 823,188 763,660 Shares repurchased — (2,647,670 ) — — (2,647,670 ) — — Net issuance of common shares related to employee stock transactions — 1,090,342 — — 1,090,342 — — PNC LTIP capital contribution — — — (517,138 ) — — (517,138 ) December 31, 2017 171,252,185 (11,275,070 ) 823,188 246,522 159,977,115 823,188 246,522 Shares repurchased — (3,511,603 ) — — (3,511,603 ) — — Net issuance of common shares related to employee stock transactions — 1,087,989 — — 1,087,989 — — PNC LTIP capital contribution — — — (103,064 ) — — (103,064 ) December 31, 2018 171,252,185 (13,698,684 ) 823,188 143,458 157,553,501 823,188 143,458 Shares repurchased — (4,018,905 ) — — (4,018,905 ) — — Net issuance of common shares related to employee stock transactions — 841,184 — — 841,184 — — PNC LTIP capital contribution — — — (143,458 ) — — (143,458 ) December 31, 2019 171,252,185 (16,876,405 ) 823,188 — 154,375,780 823,188 —

Restructuring Charge (Tables)

Restructuring Charge (Tables)	12 Months Ended
Restructuring Charge (Tables)	Dec. 31, 2019
Restructuring And Related Activities [Abstract]
Rollforward of Restructuring Liability	The table below presents a rollforward of the Company’s restructuring liability for the year ended December 31, 2019 and 2018, which is included in other liabilities on the consolidated statements of financial condition: (in millions) Liability as of December 31, 2017 $ — Additions 60 Accelerated amortization expense of equity-based awards (7 ) Liability as of December 31, 2018 $ 53 Cash payments (53 ) Liability as of December 31, 2019 $ —

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 for 2019, 2018 and 2017, are as follows: (in millions) 2019 2018 2017 Current income tax expense: Federal $ 735 $ 605 $ 1,166 State and local 109 97 36 Foreign 400 600 289 Total net current income tax expense 1,244 1,302 1,491 Deferred income tax expense (benefit): Federal 15 (71 ) (1,382 ) State and local 7 (1 ) 81 Foreign (5 ) (154 ) 80 Total net deferred income tax expense (benefit) 17 (226 ) (1,221 ) Total income tax expense $ 1,261 $ 1,076 $ 270
Components of Income before Taxes, Less Net Income (Loss) Attributable to Noncontrolling Interests	Income tax expense has been based on the following components of income before taxes, less net income (loss) attributable to NCI: (in millions) 2019 2018 2017 Domestic $ 3,766 $ 3,536 $ 3,280 Foreign 1,971 1,845 1,942 Total $ 5,737 $ 5,381 $ 5,222
Reconciliation of Income Tax Expense with Expected Federal Income Tax Expense	A reconciliation of income tax expense with expected federal income tax expense computed at the applicable federal income tax rate of 21% for 2019 and 2018 and 35% for 2017 is as follows: (in millions) 2019 2018 2017 Statutory income tax expense $ 1,205 21 % $ 1,130 21 % $ 1,834 35 % Increase (decrease) in income taxes resulting from: State and local taxes (net of federal benefit) 96 2 99 2 60 1 Impact of federal, foreign, state, and local tax rate changes on deferred taxes 5 — 0 — (1,637 ) (31 ) Mandatory deemed repatriation tax — — 0 — 477 9 Stock-based compensation awards (23 ) — (64 ) (1 ) (159 ) (3 ) Effect of foreign tax rates (76 ) (1 ) (119 ) (2 ) (337 ) (6 ) Other 54 — 30 — 32 — Income tax expense $ 1,261 22 % $ 1,076 20 % $ 270 5 %
Components of Deferred Income Tax Assets and Liabilities	The components of deferred income tax assets and liabilities are shown below: December 31, (in millions) 2019 2018 Deferred income tax assets: Compensation and benefits $ 282 $ 267 Loss carryforwards 84 82 Other 481 362 Gross deferred tax assets 847 711 Less: deferred tax valuation allowances (51 ) (68 ) Deferred tax assets net of valuation allowances 796 643 Deferred income tax liabilities: Goodwill and acquired indefinite-lived intangibles 3,971 3,939 Acquired finite-lived intangibles 179 48 Unrealized investment gains 63 30 Other 142 34 Gross deferred tax liabilities 4,355 4,051 Net deferred tax (liabilities) $ (3,559 ) $ (3,408 )
Reconciliation of Gross Unrecognized Tax Benefits	The following tabular reconciliation presents the total amounts of gross unrecognized tax benefits: (in millions) 2019 2018 2017 Balance at January 1 $ 795 $ 629 $ 410 Additions for tax positions of prior years 99 82 161 Reductions for tax positions of prior years (27 ) (15 ) (3 ) Additions based on tax positions related to current year 47 102 67 Lapse of statute of limitations (4 ) (3 ) (6 ) Settlements (10 ) — — Balance at December 31 $ 900 $ 795 $ 629

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
Earnings Per Share (Tables)	Dec. 31, 2019
Earnings Per Share [Abstract]
Computation of Basic and Diluted EPS under Treasury Stock Method	The following table sets forth the computation of basic and diluted EPS for 2019, 2018 and 2017 under the treasury stock method: (in millions, except shares and per share data) 2019 2018 2017 Net income attributable to BlackRock $ 4,476 $ 4,305 $ 4,952 Basic weighted-average shares outstanding 156,014,343 160,301,116 162,160,601 Dilutive effect of nonparticipating RSUs and stock options 1,445,203 1,647,616 2,254,434 Total diluted weighted-average shares outstanding 157,459,546 161,948,732 164,415,035 Basic earnings per share $ 28.69 $ 26.86 $ 30.54 Diluted earnings per share $ 28.43 $ 26.58 $ 30.12

Segment Information (Tables)

Segment Information (Tables)	12 Months Ended
Segment Information (Tables)	Dec. 31, 2019
Segment Reporting [Abstract]
Total Revenue by Geographic Region	The following table illustrates total revenue for 2019, 2018 and 2017 by geographic region. These amounts are aggregated on a legal entity basis and do not necessarily reflect where the customer resides or affiliated services are provided. (in millions) Revenue 2019 2018 2017 Americas $ 9,703 $ 9,303 $ 8,798 Europe 4,158 4,217 4,126 Asia-Pacific 678 678 676 Total revenue $ 14,539 $ 14,198 $ 13,600
Schedule of Long-Lived Assets by Geographic Region	The following table illustrates long-lived assets that consist of goodwill and property and equipment at December 31, 2019 and 2018 by geographic region. These amounts are aggregated on a legal entity basis and do not necessarily reflect where the asset is physically located. (in millions) Long-lived Assets 2019 2018 Americas $ 13,830 $ 13,780 Europe 1,360 303 Asia-Pacific 87 86 Total long-lived assets $ 15,277 $ 14,169

Selected Quarterly Financial _2

Selected Quarterly Financial Data (Tables)	12 Months Ended
Selected Quarterly Financial Data (Tables)	Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]
Schedule of Selected Quarterly Financial Data	(in millions, except shares and per share data) 2019 1 st (1) 2 nd 3 rd (2) 4 th (3) Revenue $ 3,346 $ 3,524 $ 3,692 $ 3,977 Operating income $ 1,233 $ 1,278 $ 1,502 $ 1,538 Net income $ 1,060 $ 1,013 $ 1,119 $ 1,334 Net income attributable to BlackRock, Inc. $ 1,053 $ 1,003 $ 1,119 $ 1,301 Earnings per share attributable to BlackRock, Inc. common stockholders: Basic $ 6.65 $ 6.46 $ 7.21 $ 8.38 Diluted $ 6.61 $ 6.41 $ 7.15 $ 8.29 Weighted-average common shares outstanding: Basic 158,268,034 155,354,552 155,280,877 155,195,733 Diluted 159,348,431 156,360,741 156,447,387 156,894,201 Dividend declared per share $ 3.30 $ 3.30 $ 3.30 $ 3.30 2018 Revenue $ 3,583 $ 3,605 $ 3,576 $ 3,434 Operating income $ 1,375 $ 1,440 $ 1,396 $ 1,246 Net income $ 1,094 $ 1,078 $ 1,203 $ 927 Net income attributable to BlackRock, Inc. $ 1,089 $ 1,073 $ 1,216 $ 927 Earnings per share attributable to BlackRock, Inc. common stockholders: Basic $ 6.75 $ 6.67 $ 7.59 $ 5.84 Diluted $ 6.68 $ 6.62 $ 7.54 $ 5.78 Weighted-average common shares outstanding: Basic 161,250,018 160,980,960 160,141,506 158,859,998 Diluted 162,918,961 162,161,937 161,378,217 160,450,266 Dividend declared per share $ 2.88 $ 2.88 $ 3.13 $ 3.13 (1) The first quarter of 2019 and 2018 included $22 million and $56 million, respectively, of discrete tax benefit related to stock-based compensation awards that vested in the first quarter of each respective year. (2) The third quarter of 2018 benefited from $90 million of discrete tax items, primarily related to changes in the Company’s organizational entity structure. (3) The fourth quarter of 2018 included a pre-tax restructuring charge of $60 million.

Business Overview - Additional

Business Overview - Additional Information (Detail) - PNC [Member]	Dec. 31, 2019
Related Party Transaction [Line Items]
Percentage of common stock of parent owned	22.00%
Percentage of capital stock of parent owned	22.40%

Significant Accounting Polici_3

Significant Accounting Policies - Additional Information (Detail) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2019USD ($)	Mar. 31, 2018USD ($)	Dec. 31, 2019USD ($)Segment	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Significant Accounting Policies [Line Items]
Operating lease right-of-use asset			$ 669
Operating lease liability			$ 776
Cash and cash equivalents maturities			three months or less
Fair value of loaned securities			$ 14,400	$ 18,900
Fair value of collateral held for loan securities			15,500	20,700
Discrete income tax benefit for vested stock awards	$ 22	$ 56	$ 28	64
Number of business segments \| Segment			1
Restricted Stock Units (RSUs) [Member]
Significant Accounting Policies [Line Items]
Discrete income tax benefit for vested stock awards			$ 23	$ 64	$ 151
Minimum [Member]
Significant Accounting Policies [Line Items]
VIE, economic interest percentage			10.00%
Collateral cash and securities received in exchange of value of securities lent in order to reduce counterparty risk			102.00%
Maximum [Member]
Significant Accounting Policies [Line Items]
Collateral cash and securities received in exchange of value of securities lent in order to reduce counterparty risk			112.00%
Maximum [Member] \| Software [Member]
Significant Accounting Policies [Line Items]
Estimated useful life			3 years
Accounting Standards Update 2016-02 [Member]
Significant Accounting Policies [Line Items]
Operating lease right-of-use asset			$ 700
Operating lease liability			$ 700

Acquisition - Additional Inform

Acquisition - Additional Information (Detail) - USD ($) $ in Millions	May 10, 2019	Dec. 31, 2019	Dec. 30, 2019	Dec. 31, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Amortization of intangible assets		$ 97		$ 50	$ 89
Finite-lived intangible assets had a weighted-average remaining useful life		7 years 9 months 18 days		6 years 6 months
Revenue		$ 14,539		$ 14,198	$ 13,600
eFront [Member]
Business Acquisition [Line Items]
Business acquisition, percentage of equity interest acquired	100.00%
Business acquisition purchase price, excluding settlement of debt	$ 1,300
Amortization of intangible assets		$ 38
Finite-lived intangible assets had a weighted-average remaining useful life		9 years
Revenue			$ 96
eFront [Member] \| Minimum [Member]
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life		4 years
eFront [Member] \| Maximum [Member]
Business Acquisition [Line Items]
Finite-lived intangible asset, useful life		10 years

Acquisition - Summary of Initia

Acquisition - Summary of Initial and Revised Fair Values of Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Millions	May 10, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Goodwill		$ 14,562	$ 13,526	$ 13,220
Total consideration, net of cash acquired		$ 1,510	$ 699	$ 102
eFront [Member]
Business Acquisition [Line Items]
Accounts receivable	$ 61
Goodwill	1,044
Other assets	49
Deferred income tax liabilities	(146)
Other liabilities assumed	(125)
Total consideration, net of cash acquired	1,500
Cash paid including settlement of outstanding debt of approximately $0.2 billion	1,555
Cash acquired	(55)
Total consideration, net of cash acquired	1,500
eFront [Member] \| Customer Relationships [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets	400
eFront [Member] \| Technology-Related [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets	203
eFront [Member] \| Trade Names [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets	14
eFront [Member] \| Initial Estimate of Fair Value [Member]
Business Acquisition [Line Items]
Accounts receivable	65
Goodwill	990
Other assets	31
Deferred income tax liabilities	(194)
Other liabilities assumed	(64)
Total consideration, net of cash acquired	1,506
Cash paid including settlement of outstanding debt of approximately $0.2 billion	1,555
Cash acquired	(49)
Total consideration, net of cash acquired	1,506
eFront [Member] \| Initial Estimate of Fair Value [Member] \| Customer Relationships [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets	452
eFront [Member] \| Initial Estimate of Fair Value [Member] \| Technology-Related [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets	205
eFront [Member] \| Initial Estimate of Fair Value [Member] \| Trade Names [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets	$ 21

Acquisition - Summary of Init_2

Acquisition - Summary of Initial and Revised Fair Values of Assets Acquired and Liabilities Assumed (Parenthetical) (Detail) - eFront [Member] - USD ($) $ in Billions	May 10, 2019	Dec. 31, 2019
Business Acquisition [Line Items]
Settlement of outstanding debt	$ 0.2
Customer Relationships [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets, weighed-average estimated useful life	10 years	10 years
Technology-Related [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets, weighed-average estimated useful life	8 years	8 years
Trade Names [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets, weighed-average estimated useful life	4 years	4 years

Acquisition - Summary of Finite

Acquisition - Summary of Finite-Lived Intangible Assets Remaining Amortization Expense (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
2020	$ 106
2021	107
2022	103
2023	97
2024	92
Total	791	$ 261
eFront [Member]
Business Acquisition [Line Items]
2020	60
2021	64
2022	68
2023	69
2024	71
Thereafter	247
Total	$ 579

Cash, Cash Equivalents and Re_3

Cash, Cash Equivalents and Restricted Cash - Schedule of Reconciliation of Cash, Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Millions		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents [Abstract]
Cash and cash equivalents	[1]	$ 4,829	$ 6,488
Restricted cash included in other assets		$ 17	$ 17
Restricted Cash, Asset, Statement of Financial Position [Extensible List]		us-gaap:OtherAssetsMember	us-gaap:OtherAssetsMember
Total cash, cash equivalents and restricted cash		$ 4,846	$ 6,505	$ 7,096	$ 6,192

[1]	For 2019, cash and cash equivalents, investments, other assets and other liabilities include $131 million, $3,301 million, $68 million, and $820 million, respectively, related to consolidated variable interest entities (“VIEs”). For 2018, cash and cash equivalents, investments, other assets and other liabilities include $186 million, $2,680 million, $876 million, and $1,374 million, respectively, related to consolidated VIEs

Investments - Summary of Carryi

Investments - Summary of Carrying Value of Total Investments (Detail) - USD ($) $ in Millions		Dec. 31, 2019	Dec. 31, 2018
Schedule of Investments [Line Items]
Held-to-maturity investments		$ 249	$ 188
Trading securities		1,249	1,660
Total debt securities		1,498	1,848
Equity securities at FVTNI		1,926	1,021
Total investments	[1]	5,489	4,476
Bank loans		204	84
Other Investments [Member]
Schedule of Investments [Line Items]
Total investments		297	263
Equity Method Investments [Member]
Schedule of Investments [Line Items]
Total investments		943	781
Federal Reserve Bank Stock [Member]
Schedule of Investments [Line Items]
Total investments		93	92
Consolidated Entities [Member] \| Carried Interest [Member]
Schedule of Investments [Line Items]
Total investments		$ 528	$ 387

[1]	For 2019, cash and cash equivalents, investments, other assets and other liabilities include $131 million, $3,301 million, $68 million, and $820 million, respectively, related to consolidated variable interest entities (“VIEs”). For 2018, cash and cash equivalents, investments, other assets and other liabilities include $186 million, $2,680 million, $876 million, and $1,374 million, respectively, related to consolidated VIEs

Investments - Summary of Sale A

Investments - Summary of Sale Activity of Available-for-Sale-Securities (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2018USD ($)
Available For Sale Securities [Abstract]
Sales proceeds	$ 173

Investments - Additional Inform

Investments - Additional Information (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Investments Debt And Equity Securities [Abstract]
Available for sale investments	$ 0	$ 0
Held-to-maturity investments	249	$ 188
Foreign government debt, after five years through ten years	80
Held-to-maturity investments, after ten years	$ 169

Investments - Summary of Cost a

Investments - Summary of Cost and Carrying Value of Equity and Trading Debt Securities (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Schedule of Investments [Line Items]
Total trading debt securities, Cost	$ 1,231	$ 1,686
Equity securities at FVTNI, Cost	1,769	1,016
Total trading debt, Carrying Value	1,249	1,660
Equity securities at FVTNI, Carrying Value	1,926	1,021
Corporate Debt [Member]
Schedule of Investments [Line Items]
Total trading debt securities, Cost	822	800
Total trading debt, Carrying Value	844	798
Government Debt [Member]
Schedule of Investments [Line Items]
Total trading debt securities, Cost	268	771
Total trading debt, Carrying Value	269	756
Asset/Mortgage-Backed Debt [Member]
Schedule of Investments [Line Items]
Total trading debt securities, Cost	141	115
Total trading debt, Carrying Value	136	106
Deferred Compensation Plan Fund [Member]
Schedule of Investments [Line Items]
Equity securities at FVTNI, Cost	6	21
Equity securities at FVTNI, Carrying Value	23	34
Equity Securities/Multi-Asset Mutual Funds [Member]
Schedule of Investments [Line Items]
Equity securities at FVTNI, Cost	1,763	995
Equity securities at FVTNI, Carrying Value	$ 1,903	$ 987

Consolidated Sponsored Invest_3

Consolidated Sponsored Investment Products - Consolidated VIEs And VREs Recorded in Consolidated Statements of Financial Condition (Detail) - USD ($) $ in Millions		Dec. 31, 2019	Dec. 31, 2018
Consolidated Sponsored Investment Funds [Line Items]
Cash and cash equivalents	[1]	$ 4,829	$ 6,488
Investments:
Trading debt securities		1,249	1,660
Equity securities		1,926	1,021
Bank loans		204	84
Total investments	[1]	5,489	4,476
Other assets	[1]	3,169	3,004
Other liabilities	[1]	(3,470)	(3,263)
Noncontrolling interests		(66)	(59)
Consolidated Variable Interest Entities [Member]
Consolidated Sponsored Investment Funds [Line Items]
Cash and cash equivalents		131	186
Investments:
Trading debt securities		1,059	1,395
Bank loans		204	84
Other investments		194	263
Carried interest		514	369
Total investments		3,301	2,680
Other assets		68	876
Other liabilities		(820)	(1,374)
Noncontrolling interests		(1,348)	(1,076)
BlackRock's net interest in consolidated investment products		1,332	1,292
Consolidated Voting Rights Entities [Member]
Consolidated Sponsored Investment Funds [Line Items]
Cash and cash equivalents		10	59
Investments:
Trading debt securities		151	233
Total investments		483	524
Other assets		5	8
Other liabilities		(20)	(53)
Noncontrolling interests		(34)	(90)
BlackRock's net interest in consolidated investment products		444	448
Consolidated Sponsored Investment Products [Member]
Consolidated Sponsored Investment Funds [Line Items]
Cash and cash equivalents		141	245
Investments:
Trading debt securities		1,210	1,628
Bank loans		204	84
Other investments		194	263
Carried interest		514	369
Total investments		3,784	3,204
Other assets		73	884
Other liabilities		(840)	(1,427)
Noncontrolling interests		(1,382)	(1,166)
BlackRock's net interest in consolidated investment products		1,776	1,740
Equity securities [Member]
Investments:
Equity securities		1,903	987
Equity securities [Member] \| Consolidated Variable Interest Entities [Member]
Investments:
Equity securities		1,330	569
Equity securities [Member] \| Consolidated Voting Rights Entities [Member]
Investments:
Equity securities		332	291
Equity securities [Member] \| Consolidated Sponsored Investment Products [Member]
Investments:
Equity securities		$ 1,662	$ 860

[1]	For 2019, cash and cash equivalents, investments, other assets and other liabilities include $131 million, $3,301 million, $68 million, and $820 million, respectively, related to consolidated variable interest entities (“VIEs”). For 2018, cash and cash equivalents, investments, other assets and other liabilities include $186 million, $2,680 million, $876 million, and $1,374 million, respectively, related to consolidated VIEs

Consolidated Sponsored Invest_4

Consolidated Sponsored Investment Products - Consolidated VIEs And VREs Recorded in Consolidated Statements of Financial Condition (Detail) (Parenthetical) - USD ($) $ in Millions		Dec. 31, 2019	Dec. 31, 2018
Consolidated Sponsored Investment Funds [Line Items]
Other liabilities	[1]	$ 3,470	$ 3,263
Consolidated Variable Interest Entities [Member]
Consolidated Sponsored Investment Funds [Line Items]
Other liabilities		820	1,374
Consolidated Variable Interest Entities [Member] \| Borrowings of Consolidated CLO [Member]
Consolidated Sponsored Investment Funds [Line Items]
Other liabilities		$ 195	$ 84

[1]	For 2019, cash and cash equivalents, investments, other assets and other liabilities include $131 million, $3,301 million, $68 million, and $820 million, respectively, related to consolidated variable interest entities (“VIEs”). For 2018, cash and cash equivalents, investments, other assets and other liabilities include $186 million, $2,680 million, $876 million, and $1,374 million, respectively, related to consolidated VIEs

Consolidated Sponsored Invest_5

Consolidated Sponsored Investment Products - Schedule of Net Gain (Loss) Related to Consolidated VIEs (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Variable Interest Entity [Line Items]
Nonoperating net gain (loss) on consolidated VIEs	$ 342	$ 1	$ 161
Net income (loss) attributable to noncontrolling interests	50	(3)	37
Consolidated Variable Interest Entities [Member]
Variable Interest Entity [Line Items]
Nonoperating net gain (loss) on consolidated VIEs	210	(105)	118
Net income (loss) attributable to noncontrolling interests	$ 42	$ (6)	$ 33

Variable Interest Entities Refl

Variable Interest Entities Reflects adoption of ASU 2015-12 - Balances Relating to Variable Interest Entities in which BlackRock is Not Primary Beneficiary (Detail) - Variable Interest Entity, Not Primary Beneficiary [Member] - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Investments [Member]
Variable Interest Entity [Line Items]
Sponsored investment products	$ 539,000,000	$ 348,000,000
Advisory Fee Receivables [Member]
Variable Interest Entity [Line Items]
Sponsored investment products	71,000,000	43,000,000
Other Net Assets (Liabilities) [Member]
Variable Interest Entity [Line Items]
Sponsored investment products	(10,000,000)	(6,000,000)
Maximum Risk of Loss [Member]
Variable Interest Entity [Line Items]
Sponsored investment products	$ 627,000,000	$ 408,000,000

Variable Interest Entities Re_2

Variable Interest Entities Reflects adoption of ASU 2015-12 - Additional Information (Detail) - USD ($) $ in Billions	Dec. 31, 2019	Dec. 31, 2018
Variable Interest Entity, Not Primary Beneficiary [Member] \| Sponsored Investment Products [Member]
Variable Interest Entity [Line Items]
Net assets of investments funds	$ 12	$ 9

Fair Value Disclosures - Assets

Fair Value Disclosures - Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Trading securities	$ 1,249	$ 1,660
Total equity securities at FVTNI	1,926	1,021
Separate account assets	102,844	90,285
Total separate account collateral held under securities lending agreements	15,500	20,700
Separate account collateral liabilities under securities lending agreements	15,466	20,655
Investments Measured at NAV [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Other assets	68	18
Equity securities [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total equity securities at FVTNI	1,903	987
Fair Value, Measurements, Recurring [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Held-to-maturity investments	249	188
Total debt securities	1,498	1,848
Total equity securities at FVTNI	1,926	1,021
Total equity method	943	781
Bank loans	204	84
Federal Reserve Bank Stock	93	92
Carried interest	528	387
Other investments	297	263
Total investments	5,489	4,476
Other assets	173	122
Separate account assets	102,844	90,285
Total separate account collateral held under securities lending agreements	15,466	20,655
Total	123,972	115,538
Separate account collateral liabilities under securities lending agreements	15,466	20,655
Other liabilities	398	377
Total liabilities measured at fair value	15,864	21,032
Fair Value, Measurements, Recurring [Member] \| Debt Securities/ Fixed Income Mutual Funds [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Trading securities	1,249	1,660
Fair Value, Measurements, Recurring [Member] \| Equity Securities/Multi-asset Mutual Funds [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total equity securities at FVTNI	1,903	987
Fair Value, Measurements, Recurring [Member] \| Equity And Fixed Income Mutual Funds [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total equity method	157	122
Fair Value, Measurements, Recurring [Member] \| Hedge Funds/Funds of Hedge Funds [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total equity method	220	173
Fair Value, Measurements, Recurring [Member] \| Private/ Public Equity [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total equity method	248	116
Fair Value, Measurements, Recurring [Member] \| Real Assets Funds [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total equity method	296	353
Fair Value, Measurements, Recurring [Member] \| Other Types Of Investments [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total equity method	22	17
Fair Value, Measurements, Recurring [Member] \| Deferred Compensation Plan Mutual Funds [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total equity securities at FVTNI	23	34
Fair Value, Measurements, Recurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total equity securities at FVTNI	1,926	1,021
Total equity method	169	122
Total investments	2,095	1,143
Other assets	173	122
Separate account assets	72,515	63,610
Total separate account collateral held under securities lending agreements	10,209	15,066
Total	84,992	79,941
Separate account collateral liabilities under securities lending agreements	10,209	15,066
Total liabilities measured at fair value	10,209	15,066
Fair Value, Measurements, Recurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Equity Securities/Multi-asset Mutual Funds [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total equity securities at FVTNI	1,903	987
Fair Value, Measurements, Recurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Equity And Fixed Income Mutual Funds [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total equity method	157	122
Fair Value, Measurements, Recurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Other Types Of Investments [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total equity method	12
Fair Value, Measurements, Recurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Deferred Compensation Plan Mutual Funds [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total equity securities at FVTNI	23	34
Fair Value, Measurements, Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total debt securities	1,241	1,656
Bank loans	27	14
Total investments	1,268	1,670
Separate account assets	29,582	25,810
Total separate account collateral held under securities lending agreements	5,257	5,589
Total	36,107	33,069
Separate account collateral liabilities under securities lending agreements	5,257	5,589
Other liabilities	10	6
Total liabilities measured at fair value	5,267	5,595
Fair Value, Measurements, Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member] \| Debt Securities/ Fixed Income Mutual Funds [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Trading securities	1,241	1,656
Fair Value, Measurements, Recurring [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total debt securities	8	4
Bank loans	177	70
Other investments	9	82
Total investments	194	156
Total	194	156
Other liabilities	388	371
Total liabilities measured at fair value	388	371
Fair Value, Measurements, Recurring [Member] \| Significant Unobservable Inputs (Level 3) [Member] \| Debt Securities/ Fixed Income Mutual Funds [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Trading securities	8	4
Fair Value, Measurements, Recurring [Member] \| Investments Measured at NAV [Member] \| Investment in NAV [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total equity method	774	656
Other investments	98	106
Total investments	872	762
Total	872	762
Fair Value, Measurements, Recurring [Member] \| Investments Measured at NAV [Member] \| Hedge Funds/Funds of Hedge Funds [Member] \| Investment in NAV [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total equity method	220	173
Fair Value, Measurements, Recurring [Member] \| Investments Measured at NAV [Member] \| Private/ Public Equity [Member] \| Investment in NAV [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total equity method	248	116
Fair Value, Measurements, Recurring [Member] \| Investments Measured at NAV [Member] \| Real Assets Funds [Member] \| Investment in NAV [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total equity method	296	353
Fair Value, Measurements, Recurring [Member] \| Investments Measured at NAV [Member] \| Other Types Of Investments [Member] \| Investment in NAV [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total equity method	10	14
Fair Value, Measurements, Recurring [Member] \| Other [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Held-to-maturity investments	249	188
Total debt securities	249	188
Total equity method		3
Federal Reserve Bank Stock	93	92
Carried interest	528	387
Other investments	190	75
Total investments	1,060	745
Separate account assets	747	865
Total	1,807	1,610
Fair Value, Measurements, Recurring [Member] \| Other [Member] \| Other Types Of Investments [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total equity method		3
Fair Value, Measurements, Recurring [Member] \| Equity securities [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total separate account collateral held under securities lending agreements	10,209	15,066
Fair Value, Measurements, Recurring [Member] \| Equity securities [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total separate account collateral held under securities lending agreements	10,209	15,066
Fair Value, Measurements, Recurring [Member] \| Debt securities [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total separate account collateral held under securities lending agreements	5,257	5,589
Fair Value, Measurements, Recurring [Member] \| Debt securities [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total separate account collateral held under securities lending agreements	$ 5,257	$ 5,589

Fair Value Disclosures - Additi

Fair Value Disclosures - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Collateralized loan obligations outstanding borrowings maturity year	2030
Fair Value Option [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total investments	$ 37	$ 32
Significant Unobservable Inputs (Level 3) [Member] \| Private/ Public Equity [Member] \| Consolidated Variable Interest Entities [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Total investments	$ 194	$ 156

Fair Value Disclosures - Change

Fair Value Disclosures - Changes in Level 3 Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets measured at fair value, beginning balance	$ 156	$ 116
Realized and Unrealized Gains (Losses),Assets		(20)
Purchases, Assets	117	35
Sales and Maturities, Assets		(14)
Issuances and Other Settlements, Assets		70
Transfers out of Level 3, Assets	(79)	(31)
Assets measured at fair value, ending balance	194	156
Total Net Unrealized Gains (Losses) Included in Earnings		(20)
Liabilities measured at fair value, beginning balance	371	236
Realized and Unrealized Gains (Losses), Liabilities	(53)	(65)
Issuances and Other Settlements, Liabilities	(36)	70
Liabilities measured at fair value, ending balance	388	371
Total Net Unrealized Gains (Losses) Included in Earnings	(53)	(65)
Other Liabilities [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Liabilities measured at fair value, beginning balance	371	236
Realized and Unrealized Gains (Losses), Liabilities	(53)	(65)
Issuances and Other Settlements, Liabilities	(36)	70
Liabilities measured at fair value, ending balance	388	371
Total Net Unrealized Gains (Losses) Included in Earnings	(53)	(65)
Investments [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets measured at fair value, beginning balance	156	116
Realized and Unrealized Gains (Losses),Assets		(20)
Purchases, Assets	117	35
Sales and Maturities, Assets		(14)
Issuances and Other Settlements, Assets		70
Transfers out of Level 3, Assets	(79)	(31)
Assets measured at fair value, ending balance	194	156
Total Net Unrealized Gains (Losses) Included in Earnings		(20)
Debt securities [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets measured at fair value, beginning balance	4
Purchases, Assets	10	35
Transfers out of Level 3, Assets	(6)	(31)
Assets measured at fair value, ending balance	8	4
Debt securities [Member] \| Trading [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets measured at fair value, beginning balance	4
Purchases, Assets	10	9
Transfers out of Level 3, Assets	(6)	(5)
Assets measured at fair value, ending balance	8	4
Consolidated Variable Interest Entities [Member] \| Bank Loans [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets measured at fair value, beginning balance	70
Purchases, Assets	107
Issuances and Other Settlements, Assets		70
Assets measured at fair value, ending balance	177	70
Consolidated Variable Interest Entities [Member] \| Private/ Public Equity [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets measured at fair value, beginning balance	82	116
Realized and Unrealized Gains (Losses),Assets		(20)
Sales and Maturities, Assets		(14)
Transfers out of Level 3, Assets	(73)
Assets measured at fair value, ending balance	$ 9	82
Total Net Unrealized Gains (Losses) Included in Earnings		$ (20)

Fair Value Disclosures - Fair V

Fair Value Disclosures - Fair Value of Financial Assets and Financial Liabilities (Detail) - USD ($) $ in Millions		Dec. 31, 2019	Dec. 31, 2018
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Cash and cash equivalents	[1]	$ 4,829	$ 6,488
Long-term borrowings		4,955	4,979
Carrying Amount [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Cash and cash equivalents		4,829	6,488
Other assets		68	18
Carrying Amount [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Long-term borrowings		4,955	4,979
Estimated Fair Value [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Cash and cash equivalents		4,829	6,488
Other assets		68	18
Estimated Fair Value [Member] \| Significant Other Observable Inputs (Level 2) [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Long-term borrowings		$ 5,254	$ 5,034

[1]	For 2019, cash and cash equivalents, investments, other assets and other liabilities include $131 million, $3,301 million, $68 million, and $820 million, respectively, related to consolidated variable interest entities (“VIEs”). For 2018, cash and cash equivalents, investments, other assets and other liabilities include $186 million, $2,680 million, $876 million, and $1,374 million, respectively, related to consolidated VIEs

Fair Value Disclosures - Fair_2

Fair Value Disclosures - Fair Value of Financial Assets and Financial Liabilities (Parenthetical) (Detail) - USD ($) $ / shares in Units, $ in Millions		Dec. 31, 2019	Dec. 31, 2018
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Cash and cash equivalents	[1]	$ 4,829	$ 6,488
Money market valuation per share floor		$ 1
Money Market Funds [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Cash and cash equivalents		$ 674	$ 173

[1]	For 2019, cash and cash equivalents, investments, other assets and other liabilities include $131 million, $3,301 million, $68 million, and $820 million, respectively, related to consolidated variable interest entities (“VIEs”). For 2018, cash and cash equivalents, investments, other assets and other liabilities include $186 million, $2,680 million, $876 million, and $1,374 million, respectively, related to consolidated VIEs

Fair Value Disclosures - Invest

Fair Value Disclosures - Investments in Certain Entities Calculate Net Asset Value per Share (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total Unfunded Commitments	$ 553	$ 343
Fair Value Measured at NAV per share [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value	$ 872	$ 762
Hedge Funds/Funds of Hedge Funds [Member] \| Consolidated Variable Interest Entities [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Redemption Notice Period, days	90 days	90 days
Hedge Funds/Funds of Hedge Funds [Member] \| Consolidated Variable Interest Entities [Member] \| Fair Value Measured at NAV per share [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value	$ 3	$ 3
Real Assets Funds [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total Unfunded Commitments	203	130
Real Assets Funds [Member] \| Consolidated Variable Interest Entities [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total Unfunded Commitments	83	37
Real Assets Funds [Member] \| Consolidated Variable Interest Entities [Member] \| Fair Value Measured at NAV per share [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value	72	55
Private Equity Funds Of Funds [Member] \| Consolidated Variable Interest Entities [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total Unfunded Commitments	9	18
Private Equity Funds Of Funds [Member] \| Consolidated Variable Interest Entities [Member] \| Fair Value Measured at NAV per share [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value	23	48
Equity Method Investments [Member] \| Hedge Funds/Funds of Hedge Funds [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total Unfunded Commitments	$ 120	$ 96
Redemption Frequency (Daily)	27.00%	30.00%
Redemption Frequency (Monthly)	27.00%	30.00%
Redemption Frequency (Quarterly)	15.00%	18.00%
Redemption Frequency (Not Redeemable)	58.00%	52.00%
Equity Method Investments [Member] \| Hedge Funds/Funds of Hedge Funds [Member] \| Fair Value Measured at NAV per share [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value	$ 220	$ 173
Equity Method Investments [Member] \| Hedge Funds/Funds of Hedge Funds [Member] \| Minimum [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Redemption Notice Period, days	1 day	1 day
Equity Method Investments [Member] \| Hedge Funds/Funds of Hedge Funds [Member] \| Maximum [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Redemption Notice Period, days	90 days	90 days
Equity Method Investments [Member] \| Private Equity Funds [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total Unfunded Commitments	$ 212	$ 83
Equity Method Investments [Member] \| Private Equity Funds [Member] \| Fair Value Measured at NAV per share [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value	248	116
Equity Method Investments [Member] \| Real Assets Funds [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total Unfunded Commitments	$ 120	$ 93
Redemption Frequency (Quarterly)	57.00%	68.00%
Redemption Frequency (Not Redeemable)	43.00%	32.00%
Redemption Notice Period, Not Redeemable	60 days	60 days
Equity Method Investments [Member] \| Real Assets Funds [Member] \| Fair Value Measured at NAV per share [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value	$ 296	$ 353
Equity Method Investments [Member] \| Other Types Of Investments [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total Unfunded Commitments	9	$ 16
Redemption Frequency (Daily)		80.00%
Redemption Frequency (Not Redeemable)		20.00%
Redemption Notice Period, days		5 days
Equity Method Investments [Member] \| Other Types Of Investments [Member] \| Fair Value Measured at NAV per share [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Fair Value	$ 10	$ 14

Fair Value Disclosures - Inve_2

Fair Value Disclosures - Investments in Certain Entities Calculate Net Asset Value per Share (Parenthetical) (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total Unfunded Commitments	$ 553	$ 343
Real Assets Funds [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total Unfunded Commitments	203	130
Amount of unfunded commitments contractually obligated to fund	172	117
Real Assets Funds [Member] \| Consolidated Variable Interest Entities [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total Unfunded Commitments	83	37
Private Equity Funds Of Funds [Member] \| Consolidated Variable Interest Entities [Member]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Total Unfunded Commitments	9	18
Amount of unfunded commitments contractually obligated to fund	$ 22	$ 22

Fair Value Disclosures - Summar

Fair Value Disclosures - Summary of Information Related to Bank Loans and Borrowings of Consolidated CLO Recorded within Investments and Borrowings of Consolidated VIEs Respectively for which Fair Value Option was Elected (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Fair Value Option Quantitative Disclosures [Line Items]
Aggregate principal amounts outstanding	$ 4,986
CLO Bank Loans [Member]
Fair Value Option Quantitative Disclosures [Line Items]
Aggregate principal amounts outstanding	204	$ 84
Fair value	204	84
CLO Borrowings [Member]
Fair Value Option Quantitative Disclosures [Line Items]
Aggregate principal amounts outstanding	195	84
Fair value	$ 195	$ 84

Derivatives and Hedging - Addit

Derivatives and Hedging - Additional Information (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Derivative [Line Items]
Derivative maximum risk of loss	$ 17	$ 17
Forward Foreign Currency Exchange Contracts [Member]
Derivative [Line Items]
Notional value	3,400	2,200
Total Return Swaps [Member]
Derivative [Line Items]
Notional value	$ 644	$ 483

Derivatives and Hedging - Summa

Derivatives and Hedging - Summary of Gains (Losses) Recognized in Consolidated Statements of Income on Derivative Instruments (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Derivative Instruments Gain Loss [Line Items]
Total gain (loss) from derivative instruments	$ (51)	$ (70)	$ (57)
Total Return Swaps [Member] \| Nonoperating Income (Expense) [Member]
Derivative Instruments Gain Loss [Line Items]
Total gain (loss) from derivative instruments	(106)	54	(118)
Interest Rate Swaps [Member] \| Nonoperating Income (Expense) [Member]
Derivative Instruments Gain Loss [Line Items]
Total gain (loss) from derivative instruments			(2)
Forward Foreign Currency Exchange Contracts [Member] \| General and Administration Expense [Member]
Derivative Instruments Gain Loss [Line Items]
Total gain (loss) from derivative instruments	$ 55	$ (124)	$ 63

Property and Equipment - Schedu

Property and Equipment - Schedule of Property and Equipment (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 1,595	$ 1,393
Less: accumulated depreciation and amortization	880	750
Property and equipment, net	715	643
Land [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	6	6
Building [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 33	33
Estimated useful life-in years	39 years
Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 30	30
Estimated useful life-in years	15 years
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 565	534
Leasehold Improvements [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life-in years	1 year
Leasehold Improvements [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life-in years	15 years
Equipment and Computer Software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 672	541
Estimated useful life-in years	3 years
Other Transportation Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 136	135
Estimated useful life-in years	10 years
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 70	66
Estimated useful life-in years	7 years
Construction in progress [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 83	$ 48

Property and Equipment - Additi

Property and Equipment - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Depreciation and amortization expense	$ 182	$ 154	$ 132
Equipment and Computer Software [Member]
Property, Plant and Equipment [Line Items]
Qualifying software costs	$ 93	$ 77	$ 60
Estimated useful life	3 years

Goodwill - Goodwill Activity (D

Goodwill - Goodwill Activity (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Goodwill Roll Forward
Beginning of year balance	$ 13,526	$ 13,220
Acquisitions	1,044	316
Goodwill adjustments related to Quellos and other	(8)	(10)
End of year balance	$ 14,562	$ 13,526

Goodwill - Goodwill Activity (P

Goodwill - Goodwill Activity (Parenthetical) (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Goodwill Roll Forward
Excess of tax goodwill over book goodwill	$ 106	$ 137

Goodwill - Additional Informati

Goodwill - Additional Information (Detail) - USD ($)	May 10, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Goodwill [Line Items]
Acquisitions		$ 1,044,000,000	$ 316,000,000
Impairment of goodwill		$ 0	0	$ 0
Closing market price of common stock		$ 502.70
Book value per share		$ 216.15
eFront [Member]
Goodwill [Line Items]
Acquisitions		$ 1,044,000,000
Total cash consideration paid for acquisitions	$ 1,555,000,000
Citibanamex [Member]
Goodwill [Line Items]
Acquisitions			132,000,000
Total consideration at closing for acquisitions			360,000,000
Tennenbaum Capital Partners, LLC [Member]
Goodwill [Line Items]
Acquisitions			184,000,000
Total cash consideration paid for acquisitions			$ 393,000,000

Intangible Assets - Intangible

Intangible Assets - Intangible Assets (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Intangible Assets Net Excluding Goodwill [Abstract]
Total intangible assets - Gross Carrying Amount	$ 18,554	$ 18,083
Total intangible assets - Net Carrying Amount	$ 18,369	$ 17,839

Intangible Assets - Finite-live

Intangible Assets - Finite-lived Intangible Assets (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets - Remaining Weighted-Average Estimated Useful Life	7 years 9 months 18 days	6 years 6 months
Finite-lived intangible assets - Gross Carrying Amount	$ 976	$ 505
Finite-lived intangible assets - Accumulated Amortization	185	244
Total	$ 791	$ 261
Management Contracts [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets - Remaining Weighted-Average Estimated Useful Life	4 years 9 months 18 days	5 years 2 months 12 days
Finite-lived intangible assets - Gross Carrying Amount	$ 283	$ 439
Finite-lived intangible assets - Accumulated Amortization	135	237
Total	$ 148	$ 202
Investor/Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets - Remaining Weighted-Average Estimated Useful Life	9 years 2 months 12 days	10 years 8 months 12 days
Finite-lived intangible assets - Gross Carrying Amount	$ 476	$ 66
Finite-lived intangible assets - Accumulated Amortization	39	7
Total	$ 437	$ 59
Technology-Related [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets - Remaining Weighted-Average Estimated Useful Life	7 years 4 months 24 days
Finite-lived intangible assets - Gross Carrying Amount	$ 203
Finite-lived intangible assets - Accumulated Amortization	9
Total	$ 194
Trade Names / Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets - Remaining Weighted-Average Estimated Useful Life	3 years 3 months 18 days
Finite-lived intangible assets - Gross Carrying Amount	$ 14
Finite-lived intangible assets - Accumulated Amortization	2
Total	$ 12

Intangible Assets - Indefinite-

Intangible Assets - Indefinite-lived Intangible Assets (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	$ 17,578	$ 17,578
Management Contracts [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	16,169	16,169
Trade Names / Trademarks [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	1,403	1,403
License [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	$ 6	$ 6

Intangible Assets - Additional

Intangible Assets - Additional Information (Detail) - USD ($)	Jul. 31, 2019	May 10, 2019	Jul. 31, 2018	Jul. 31, 2017	Dec. 31, 2019	Dec. 31, 2018
Schedule Of Intangible Assets [Line Items]
Impairment of intangible assets	$ 0		$ 0	$ 0
eFront [Member] \| Customer Relationships [Member]
Schedule Of Intangible Assets [Line Items]
Finite-lived intangible assets, acquired					$ 400,000,000
Acquired finite-lived intangible assets weighted-average useful life		10 years			10 years
eFront [Member] \| Technology-Related [Member]
Schedule Of Intangible Assets [Line Items]
Finite-lived intangible assets, acquired					$ 203,000,000
Acquired finite-lived intangible assets weighted-average useful life		8 years			8 years
eFront [Member] \| Trade Names [Member]
Schedule Of Intangible Assets [Line Items]
Finite-lived intangible assets, acquired					$ 14,000,000
Acquired finite-lived intangible assets weighted-average useful life		4 years			4 years
TCP Transaction [Member]
Schedule Of Intangible Assets [Line Items]
Finite-lived intangible assets, acquired						$ 48,000,000
Acquired finite-lived intangible assets weighted-average useful life						6 years
Acquired indefinite-lived management contracts						$ 145,000,000
Citibanamex Transaction [Member]
Schedule Of Intangible Assets [Line Items]
Finite-lived intangible assets, acquired						$ 31,000,000
Acquired finite-lived intangible assets weighted-average useful life						8 years
Acquired indefinite-lived management contracts						$ 255,000,000

Intangible Assets - Estimated A

Intangible Assets - Estimated Amortization Expense for Finite-Lived Intangible Assets (Detail) $ in Millions	Dec. 31, 2019USD ($)
Finite Lived Intangible Assets Future Amortization Expense [Abstract]
2020	$ 106
2021	107
2022	103
2023	97
2024	$ 92

Leases - Components of Lease Co

Leases - Components of Lease Cost (Detail) $ in Millions	12 Months Ended
Leases - Components of Lease Cost (Detail) $ in Millions	Dec. 31, 2019USD ($)	[1]
Lease cost:
Operating lease cost	$ 141	[2]
Variable lease cost	39	[3]
Total lease cost	$ 180

[1]	(1) Rent expense and certain office equipment expense under lease agreements amounted to $135 million and $132 million in 2018 and 2017, respectively.
[2]	Amount includes short-term leases, which are immaterial for 2019.
[3]	Amount includes operating lease payments, which may be adjusted based on usage, changes in an index or market rate.

Leases - Components of Lease _2

Leases - Components of Lease Cost (Parenthetical) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Leases [Abstract]
Rent expense and certain office equipment expense	$ 135	$ 132

Leases - Schedule of Operating

Leases - Schedule of Operating Leases Included on Consolidated Statement of Financial Condition (Detail) $ in Millions	Dec. 31, 2019USD ($)
Leases [Abstract]
Operating lease ROU assets	$ 669
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:OtherAssets
Operating lease liability	$ 776
Operating Lease, Liability, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilities

Leases - Schedule of Supplement

Leases - Schedule of Supplemental Information Related to Operating Leases (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2019USD ($)
Supplemental disclosure of cash flow information:
Cash paid for amounts included in the measurement of operating lease liabilities	$ 142
Supplemental noncash information:
ROU assets in exchange for operating lease liabilities in connection with the adoption of ASU 2016-02	$ 117
Weighted-average remaining lease term	9 years
Weighted-average discount rate	3.00%
Accounting Standards Update 2016-02 [Member]
Supplemental noncash information:
ROU assets in exchange for operating lease liabilities in connection with the adoption of ASU 2016-02	$ 661

Leases - Schedule of Maturity o

Leases - Schedule of Maturity of Operating Lease Liabilities (Details) $ in Millions	Dec. 31, 2019USD ($)
Leases [Abstract]
2020	$ 152
2021	147
2022	142
2023	91
2024	58
Thereafter	294
Total lease payments	884
Less: imputed interest	108
Present value of lease liabilities	$ 776

Leases - Schedule of Maturity_2

Leases - Schedule of Maturity of Operating Lease Liabilities (Parenthetical) (Details) $ in Billions	Dec. 31, 2019USD ($)
Leases [Abstract]
Minimum lease payments for leases signed but not yet commenced excluded	$ 1.5

Leases - Future Minimum Commitm

Leases - Future Minimum Commitments under Operating Leases (Detail) $ in Millions	Dec. 31, 2018USD ($)
Leases [Abstract]
2019	$ 145
2020	139
2021	130
2022	121
2023	106
Thereafter	1,516
Total	$ 2,157

Leases - Additional Information

Leases - Additional Information (Detail) $ in Millions	12 Months Ended
Leases - Additional Information (Detail) $ in Millions	Dec. 31, 2019USD ($)ft²Floor	Dec. 31, 2018USD ($)
Lessee Lease Description [Line Items]
Total operating lease minimum commitments		$ 2,157
Operating Lease [Member]
Lessee Lease Description [Line Items]
Area of office space \| ft²	847,000
Operating leases, term of contract	20 years
Expected lease commencement date	2023-05
Annual base rental payments first five years	$ 51
Annual base rental payments five to ten years	58
Annual base rental payments ten to fifteen years	66
Annual base rental payments fifteen to twenty years	74
Total operating lease minimum commitments	$ 1,200
Initial expansion option exercised, number of additional floors \| Floor	2
Initial expansion option exercised, area of office space \| ft²	122,000
Total operating lease minimum commitments, additional space	$ 185

Other Assets - Additional Infor

Other Assets - Additional Information (Detail) - PennyMac [Member] - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Other Assets [Line Items]
Ownership percentage	20.00%
Shares	16
Carrying value - equity method investment	$ 451	$ 397
Market value of equity method investments	$ 530	$ 331

Borrowings - Additional Informa

Borrowings - Additional Information (Detail) € in Millions

May 06, 2015USD ($)

Dec. 31, 2019USD ($)

Apr. 30, 2019USD ($)

Apr. 30, 2017USD ($)

Mar. 31, 2017USD ($)

Mar. 31, 2014USD ($)

May 31, 2012USD ($)

May 31, 2011USD ($)

Dec. 31, 2019USD ($)

Dec. 31, 2018USD ($)

Dec. 31, 2017USD ($)

Dec. 31, 2019EUR (€)

May 06, 2015EUR (€)

Debt Instrument [Line Items]

Borrowings

$ 4,955,000,000

$ 4,979,000,000

Fair Value

5,254,000,000

5,000,000,000

Debt instrument, aggregate principal amount

4,986,000,000

Repayments of long-term debt

1,000,000,000

$ 700,000,000

Gain (loss) from net investment hedging, net of tax

11,000,000

30,000,000

(64,000,000)

Gain (loss) from net investment hedging, tax expense (benefit)

3,000,000

10,000,000

(38,000,000)

Other Comprehensive Income [Member]

Debt Instrument [Line Items]

Amount of ineffectiveness on net investment hedges

$ 0

Foreign Exchange Contract [Member] | Designated as Hedging Instrument [Member]

Debt Instrument [Line Items]

Debt offering designated as net investment hedge to offset its currency exposure | €

€ 700

Unsecured Debt 2027 Notes [Member]

Debt Instrument [Line Items]

Debt instrument, aggregate principal amount

$ 700,000,000

Debt instrument, interest rate

3.20%

Debt instrument, maturity date

Mar. 15,
2027

Debt instrument, Approximate annual interest expense

$ 22,000,000

Debt instrument, payment terms

Interest is payable semi-annually on March 15 and September 15 of each year

Unsecured Debt 2024 Notes [Member]

Debt Instrument [Line Items]

Debt instrument, aggregate principal amount

$ 1,000,000,000

Debt instrument, interest rate

3.50%

Debt instrument, maturity date

Mar. 18,
2024

Debt instrument, Approximate annual interest expense

$ 35,000,000

Debt instrument, payment terms

Interest is payable semi-annually in arrears on March 18 and September 18 of each year

Unsecured Unsubordinated Notes [Member]

Debt Instrument [Line Items]

Debt instrument, aggregate principal amount

$ 1,500,000,000

Unsecured Debt 2015 Notes [Member]

Debt Instrument [Line Items]

Debt instrument, aggregate principal amount

$ 750,000,000

Debt instrument, interest rate

1.375%

Unsecured Debt 2022 Notes [Member]

Debt Instrument [Line Items]

Debt instrument, aggregate principal amount

$ 750,000,000

Debt instrument, interest rate

3.375%

Debt instrument, Approximate annual interest expense

$ 25,000,000

Debt instrument, payment terms

is payable semi-annually on June 1 and December 1 of each year

Unsecured Debt 2013 [Member]

Debt Instrument [Line Items]

Debt instrument, aggregate principal amount

750,000,000

Unsecured Notes Due in 2021 [Member]

Debt Instrument [Line Items]

Debt instrument, aggregate principal amount

$ 750,000,000

Debt instrument, interest rate

4.25%

Debt instrument, Approximate annual interest expense

$ 32,000,000

Debt instrument, payment terms

is payable semi-annually on May 24 and November 24 of each year

Commercial Paper [Member]

Debt Instrument [Line Items]

Maximum amount available under facility

4,000,000,000

$ 4,000,000,000

Amount outstanding under credit facility

2019 Revolving Credit Facility [Member]

Debt Instrument [Line Items]

Unsecured revolving credit facility

4,000,000,000

Additional amount available, subject to lender credit approval

1,000,000,000

Maximum amount available under facility

5,000,000,000

Amount outstanding under credit facility

$ 0

Extended debt instrument maturity date

2024-03

Line of credit facility, covenant terms

The 2019 credit facility requires the Company not to exceed a maximum leverage ratio (ratio of net debt to EBITDA, where net debt equals total debt less unrestricted cash) of 3 to 1

Line of credit facility, covenant compliance

satisfied with a ratio of less than 1 to 1

3.25% Notes due 2029 [Member]

Debt Instrument [Line Items]

Borrowings

986,000,000

$ 986,000,000

Fair Value

1,068,000,000

Debt instrument, aggregate principal amount

$ 1,000,000,000

Debt instrument, interest rate

3.25%

Debt instrument, maturity date

Apr. 30,
2029

Debt instrument, Approximate annual interest expense

$ 33,000,000

Debt instrument, payment terms

Interest is payable semi-annually on April 30 and October 30 of each year, which commenced on October 30, 2019

5.00% Notes due 2019 [Member]

Debt Instrument [Line Items]

Debt instrument, interest rate

5.00%

Repayments of long-term debt

$ 1,000,000,000

6.25% Notes due 2017 [Member]

Debt Instrument [Line Items]

Debt instrument, interest rate

6.25%

Repayments of long-term debt

$ 700,000,000

Long-term debt, maturity date

2017-09

2025 Notes [Member]

Debt Instrument [Line Items]

Borrowings

781,000,000

$ 781,000,000

Fair Value

832,000,000

Debt instrument, aggregate principal amount

$ 786,000,000

€ 700

Debt instrument, interest rate

1.25%

Debt instrument, maturity date

May 6,
2025

Debt instrument, Approximate annual interest expense

$ 10,000,000

Debt instrument, payment terms

annually on May 6 of each year

Borrowings - Carrying Value and

Borrowings - Carrying Value and Fair Value of Long-Term Borrowings Determined Market Prices EUR/USD Foreign Exchange Rate (Detail) € in Millions, $ in Millions	Dec. 31, 2019USD ($)	Apr. 30, 2019USD ($)	Dec. 31, 2018USD ($)	May 06, 2015EUR (€)
Debt Instrument [Line Items]
Maturity Amount	$ 4,986
Unamortized Discount and Debt Issuance Costs	(31)
Carrying Value	4,955		$ 4,979
Fair Value	5,254		$ 5,000
4.25% Notes due 2021 [Member]
Debt Instrument [Line Items]
Maturity Amount	750
Unamortized Discount and Debt Issuance Costs	(1)
Carrying Value	749
Fair Value	775
3.375% Notes due 2022 [Member]
Debt Instrument [Line Items]
Maturity Amount	750
Unamortized Discount and Debt Issuance Costs	(2)
Carrying Value	748
Fair Value	777
3.50% Notes due 2024 [Member]
Debt Instrument [Line Items]
Maturity Amount	1,000
Unamortized Discount and Debt Issuance Costs	(4)
Carrying Value	996
Fair Value	1,062
1.25% Notes due 2025 [Member]
Debt Instrument [Line Items]
Maturity Amount	786			€ 700
Unamortized Discount and Debt Issuance Costs	(5)
Carrying Value	781
Fair Value	832
3.20% Notes due 2027 [Member]
Debt Instrument [Line Items]
Maturity Amount	700
Unamortized Discount and Debt Issuance Costs	(5)
Carrying Value	695
Fair Value	740
3.25% Notes due 2029 [Member]
Debt Instrument [Line Items]
Maturity Amount	1,000	$ 1,000
Unamortized Discount and Debt Issuance Costs	(14)
Carrying Value	986
Fair Value	$ 1,068

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Commitment And Contingencies [Line Items]
Various capital commitments to fund sponsored investment products, including funds of private equity funds, real assets funds, opportunistic funds and distressed credit funds	$ 553
Derivative maximum risk of loss for credit protection	17	$ 17
Amount of securities on loan subject to indemnification	210,000
Collateral for indemnified securities	226,000
Other Liabilities [Member]
Commitment And Contingencies [Line Items]
Contingent consideration at fair value	$ 193

Revenue - Summary of Investment

Revenue - Summary of Investment Advisory, Administration Fees and Securities Lending Revenue (Collectively "Base Fees") by Type (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disaggregation Of Revenue [Line Items]
Total revenue	$ 14,539	$ 14,198	$ 13,600
Investment Advisory, Administration Fees and Securities Lending Revenue [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	11,777	11,553	10,868
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] \| Equity Active Product [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	1,554	1,654	1,654
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] \| Equity iShares ETFs [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	3,495	3,549	3,220
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] \| Equity Non-ETF Index [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	667	685	680
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] \| Equity [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	5,716	5,888	5,554
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] \| Fixed Income Active [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	1,918	1,840	1,717
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] \| Fixed Income iShares ETFs [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	963	825	808
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] \| Fixed Income Non-ETF Index [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	405	387	344
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] \| Fixed Income [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	3,286	3,052	2,869
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] \| Multi-asset [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	1,148	1,176	1,157
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] \| Alternatives [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	1,009	830	730
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] \| Alternatives [Member] \| Illiquid Alternatives [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	488	348	281
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] \| Alternatives [Member] \| Liquid Alternatives [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	413	384	358
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] \| Alternatives [Member] \| Currency and Commodities [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	108	98	91
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] \| Cash Management [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	618	607	558
Investment Advisory, Administration Fees and Securities Lending Revenue [Member] \| Long-term [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	11,159	10,946	10,310
Investment Advisory Performance Fees [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	450	412	594
Investment Advisory Performance Fees [Member] \| Equity [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	36	91	152
Investment Advisory Performance Fees [Member] \| Fixed Income [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	10	8	34
Investment Advisory Performance Fees [Member] \| Multi-asset [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	19	19	33
Investment Advisory Performance Fees [Member] \| Alternatives [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	385	294	375
Investment Advisory Performance Fees [Member] \| Alternatives [Member] \| Illiquid Alternatives [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	136	70	62
Investment Advisory Performance Fees [Member] \| Alternatives [Member] \| Liquid Alternatives [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	249	224	313
Technology Services Revenue [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	974	785	657
Distribution Fees [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	1,069	1,155	1,183
Distribution Fees [Member] \| Retrocessions [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	658	709	675
Distribution Fees [Member] \| 12b-1 Fees (US Mutual Fund Distribution Fees) [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	358	406	466
Distribution Fees [Member] \| Other Distribution Fees [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	53	40	42
Advisory and Other Revenue [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	269	293	298
Advisory and Other Revenue [Member] \| Advisory [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	99	113	128
Advisory and Other Revenue [Member] \| Other [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	$ 170	$ 180	$ 170

Revenue - Summary of Investme_2

Revenue - Summary of Investment Advisory, Administration Fees and Securities Lending Revenue by Client Type and Investment Style (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disaggregation Of Revenue [Line Items]
Total revenue	$ 14,539	$ 14,198	$ 13,600
Revenue by Client Type [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	11,777	11,553	10,868
Revenue by Client Type [Member] \| Retail [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	3,411	3,413	3,250
Revenue by Client Type [Member] \| Institutional Active [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	2,172	2,044	1,955
Revenue by Client Type [Member] \| iShares ETFs [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	4,564	4,468	4,113
Revenue by Client Type [Member] \| Institutional Index [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	1,012	1,021	992
Revenue by Client Type [Member] \| Institutional [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	3,184	3,065	2,947
Revenue by Client Type [Member] \| Cash Management [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	618	607	558
Revenue by Client Type [Member] \| Long-term [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	11,159	10,946	10,310
Revenue by Investment Style [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	11,777	11,553	10,868
Revenue by Investment Style [Member] \| Active [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	5,510	5,391	5,152
Revenue by Investment Style [Member] \| Index and iShares ETFs [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	5,649	5,555	5,158
Revenue by Investment Style [Member] \| Cash Management [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	618	607	558
Revenue by Investment Style [Member] \| Long-term [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	$ 11,159	$ 10,946	$ 10,310

Revenue - Schedule of Estimated

Revenue - Schedule of Estimated Investment Advisory, Administration Fees Expected to be Recognized in Future, Related to Unsatisfied Portion of Performance Obligations (Detail) - Investment Advisory, Administration Fees and Securities Lending Revenue [Member] - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Schedule of Investment Advisory Administration Fees and Performance Fees by Type [line Items]
Revenue, Remaining Performance Obligation	$ 367	$ 226
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2019-01-01
Schedule of Investment Advisory Administration Fees and Performance Fees by Type [line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period		1 year
Revenue, Remaining Performance Obligation		$ 61
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2020-01-01
Schedule of Investment Advisory Administration Fees and Performance Fees by Type [line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year	1 year
Revenue, Remaining Performance Obligation	$ 98	$ 53
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2021-01-01
Schedule of Investment Advisory Administration Fees and Performance Fees by Type [line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year	1 year
Revenue, Remaining Performance Obligation	$ 88	$ 42
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2022-01-01
Schedule of Investment Advisory Administration Fees and Performance Fees by Type [line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Revenue, Remaining Performance Obligation	$ 74	$ 70
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2023-01-01
Schedule of Investment Advisory Administration Fees and Performance Fees by Type [line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period
Revenue, Remaining Performance Obligation	$ 107

Revenue - Schedule of Estimat_2

Revenue - Schedule of Estimated Investment Advisory, Administration Fees Expected to be Recognized in Future, Related to Unsatisfied Portion of Performance Obligations (Detail 1) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Investment Advisory, Administration Fees and Securities Lending Revenue [Member]
Schedule of Investment Advisory Administration Fees and Performance Fees by Type [line Items]
Revenue, Remaining Performance Obligation	$ 367	$ 226

Revenue - Schedule of Changes i

Revenue - Schedule of Changes in Deferred Carried Interest Liability (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Revenue From Contract With Customer [Abstract]
Beginning balance	$ 293	$ 219
Net increase (decrease) in unrealized allocations	259	92
Performance fee revenue recognized	(75)	(18)
Other	6
Ending balance	$ 483	$ 293

Revenue - Schedule of Estimat_3

Revenue - Schedule of Estimated Technology Services Revenue Expected to Be Recognized in Future, Related to Unsatisfied Portion of Performance Obligations (Detail) - Technology Services Revenue [Member] - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Schedule of Investment Advisory Administration Fees and Securities Lending Revenue and Performance Fees by Type [line Items]
Revenue, Remaining Performance Obligation	$ 221	$ 87
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2019-01-01
Schedule of Investment Advisory Administration Fees and Securities Lending Revenue and Performance Fees by Type [line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period		1 year
Revenue, Remaining Performance Obligation		$ 28
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2020-01-01
Schedule of Investment Advisory Administration Fees and Securities Lending Revenue and Performance Fees by Type [line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year	1 year
Revenue, Remaining Performance Obligation	$ 117	$ 24
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2021-01-01
Schedule of Investment Advisory Administration Fees and Securities Lending Revenue and Performance Fees by Type [line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year	1 year
Revenue, Remaining Performance Obligation	$ 53	$ 18
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2022-01-01
Schedule of Investment Advisory Administration Fees and Securities Lending Revenue and Performance Fees by Type [line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Revenue, Remaining Performance Obligation	$ 31	$ 17
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2023-01-01
Schedule of Investment Advisory Administration Fees and Securities Lending Revenue and Performance Fees by Type [line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period
Revenue, Remaining Performance Obligation	$ 20

Revenue - Schedule of Estimat_4

Revenue - Schedule of Estimated Technology Services Revenue Expected to Be Recognized in Future, Related to Unsatisfied Portion of Performance Obligations (Detail 1) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Technology Services Revenue [Member]
Schedule of Investment Advisory Administration Fees and Securities Lending Revenue and Performance Fees by Type [line Items]
Revenue, Remaining Performance Obligation	$ 221	$ 87

Revenue - Additional Informatio

Revenue - Additional Information (Detail) $ in Millions	12 Months Ended
Revenue - Additional Information (Detail) $ in Millions	Dec. 31, 2019USD ($)
Schedule of Investment Advisory Administration Fees and Securities Lending Revenue and Performance Fees by Type [line Items]
Estimated annual fixed minimum fees for currently outstanding contracts	$ 640
Minimum [Member]
Schedule of Investment Advisory Administration Fees and Securities Lending Revenue and Performance Fees by Type [line Items]
Term of currently outstanding contracts	1 year
Maximum [Member]
Schedule of Investment Advisory Administration Fees and Securities Lending Revenue and Performance Fees by Type [line Items]
Term of currently outstanding contracts	5 years

Revenue - Schedule of Changes_2

Revenue - Schedule of Changes in Technology Services Deferred Revenue Liability (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Revenue From Contract With Customer [Abstract]
Beginning balance	$ 70	$ 62
Additions	86	44
Revenue recognized that was included in the beginning balance	(40)	(36)
Ending balance	$ 116	$ 70

Stock-Based Compensation - Comp

Stock-Based Compensation - Components of Stock-Based Compensation Expense (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 [Line Items]
Restricted stock and RSUs	$ 532	$ 514	$ 524
Stock options	35	36	3
Total stock-based compensation	$ 567	564	542
Long-Term Incentive Plans Funded by PNC [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock and RSUs		$ 14	$ 15

Stock-Based Compensation - Addi

Stock-Based Compensation - Additional Information (Detail) $ / shares in Units, $ in Millions	Jan. 31, 2019shares	Jan. 31, 2020shares	Jan. 31, 2019shares	Mar. 31, 2019shares	Mar. 31, 2018shares	Mar. 31, 2017shares	Dec. 31, 2019USD ($)installment$ / sharesshares	Dec. 31, 2018USD ($)$ / sharesshares	Dec. 31, 2017USD ($)shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock shares authorized for issuance under Award Plan							41,500,000
Number of shares remaining for future awards							7,197,212
Fair value of RSUs/restricted stock granted to employees \| $							$ 508	$ 492	$ 421
Fair market value of RSUs/restricted stock converted to common stock \| $							$ 398	$ 443	$ 457
Restricted Stock and RSUs, Granted							1,226,249
Employee stock purchase plan, purchase price percentage							95.00%
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock and RSUs, Granted							174,752	155,403	126,906
Intrinsic value of outstanding RSUs \| $							$ 1,100
Stock price \| $ / shares							$ 502.70
Unrecognized stock-based compensation expense \| $							$ 347
Remaining weighted-average period							1 year 1 month 6 days
RSUs/Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period, years							3 years	3 years	3 years
Restricted Stock and RSUs, Granted							674,206	527,337	699,991
Awards to employees cliff vesting							377,291	209,201	277,313
RSUs to employees that cliff vest, percentage							100.00%	100.00%	100.00%
RSUs to employees that cliff vest, date							Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2020
RSUs/Restricted Stock [Member] \| Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period, years		3 years
Restricted Stock and RSUs, Granted		517,129
Awards to employees cliff vesting		380,335
RSUs to employees that cliff vest, percentage		100.00%
RSUs to employees that cliff vest, date		Jan. 31, 2023
Performance-Based RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period, years				3 years	3 years	3 years
Restricted Stock and RSUs, Granted							283,014
Intrinsic value of outstanding RSUs \| $							$ 373
Stock price \| $ / shares							$ 502.70
Unrecognized stock-based compensation expense \| $							$ 107
Remaining weighted-average period							1 year 1 month 6 days
Awards to employees cliff vesting				283,014	199,068	294,584
RSUs to employees that cliff vest, percentage				100.00%	100.00%	100.00%
RSUs to employees that cliff vest, date				Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2020
Additional Restricted Stock and RSUs, Granted			2,117				2,117
Fair value of RSUs/restricted stock granted to employees \| $							$ 117	$ 121	$ 111
Performance-Based RSUs [Member] \| Subsequent Event [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period, years		3 years
Awards to employees cliff vesting		239,415
RSUs to employees that cliff vest, percentage		100.00%
RSUs to employees that cliff vest, date		Jan. 31, 2023
Long-Term Incentive Plans Funded by PNC [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of additional shares surrendered	143,458
Performance-Based Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Remaining weighted-average period							3 years 10 months 24 days
Award vesting percentage of BlackRock's grant-date stock price							125.00%
Award vesting period of BlackRock's grant-date stock price							5 years
Award performance measurement period							4 years
Award vesting, number of equal installments \| installment							3
Strike price \| $ / shares							$ 513.50	$ 513.50
Grant-date fair value of awards issued \| $									$ 208
Unrecognized stock-based compensation expense \| $							$ 108
Performance-Based Stock Options [Member] \| Share-based Payment Arrangement, Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Service period of awards							5 years
Performance-Based Stock Options [Member] \| Share-based Payment Arrangement, Tranche Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Service period of awards							6 years
Performance-Based Stock Options [Member] \| Share-based Payment Arrangement, Tranche Three [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Service period of awards							7 years
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period, years							1 year
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period, years							3 years
Maximum [Member] \| Long-Term Incentive Plans Funded by PNC [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares committed to fund long-term incentive plans							4,000,000
Maximum [Member] \| Performance-Based Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period, years							9 years

Stock-Based Compensation - Rest

Stock-Based Compensation - Restricted Stock and RSU Activity (Detail) - $ / shares	1 Months Ended	12 Months Ended
	Jan. 31, 2019	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock and RSUs, beginning of period	2,139,890	2,139,890
Restricted Stock and RSUs, Granted		1,226,249
Restricted Stock and RSUs, Converted		(1,047,423)
Restricted Stock and RSUs, Forfeited		(82,264)
Restricted Stock and RSUs, end of period		2,236,452
Weighted-Average Grant Date Fair Value, beginning of period	$ 429.19	$ 429.19
Weighted-Average Grant Date Fair Value, Granted		414.41
Weighted-Average Grant Date Fair Value, Converted		379.85
Weighted-Average Grant Date Fair Value, Forfeited		434.02
Weighted-Average Grant Date Fair Value, end of period		$ 444.02
Performance-Based RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock and RSUs, beginning of period	845,285	845,285
Restricted Stock and RSUs, Granted		283,014
Restricted Stock and RSUs, Additional shares granted due to attainment of performance measures	2,117	2,117
Restricted Stock and RSUs, Converted		(360,927)
Restricted Stock and RSUs, Forfeited		(26,571)
Restricted Stock and RSUs, end of period		742,918
Weighted-Average Grant Date Fair Value, beginning of period	$ 386.13	$ 386.13
Weighted-Average Grant Date Fair Value, Granted		410.32
Weighted-Average Grant Date Fair Value, Additional Grants		296.57
Weighted-Average Grant Date Fair Value, Converted		296.57
Weighted-Average Grant Date Fair Value, Forfeited		435.33
Weighted-Average Grant Date Fair Value, end of period		$ 436.84

Stock-Based Compensation - Re_2

Stock-Based Compensation - Restricted Stock and RSU Activity (Parenthetical) (Detail) shares in Millions	Dec. 31, 2019shares
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Share-based compensation awards expected to vest	2
Awards vested, not converted	0.2

Stock-Based Compensation - Summ

Stock-Based Compensation - Summary of RSUs/Restricted Stock Granted in Connection with Annual Incentive Compensation under Award Plan (Detail) - shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock and RSUs, Granted	1,226,249
RSUs/Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock and RSUs, Granted	674,206	527,337	699,991
Awards to employees cliff vesting	377,291	209,201	277,313
Annual RSUs Granted [Member] \| RSUs/Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock and RSUs, Granted	1,051,497	736,538	977,304

Stock-Based Compensation - Su_2

Stock-Based Compensation - Summary of RSUs/Restricted Stock Granted in Connection with Annual Incentive Compensation under Award Plan (Parenthetical) (Detail) - RSUs/Restricted Stock [Member]	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units vesting period, years	3 years	3 years	3 years
RSUs to employees that cliff vest, date	Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2020
RSUs to employees that cliff vest, percentage	100.00%	100.00%	100.00%

Stock-Based Compensation - Stoc

Stock-Based Compensation - Stock Option Activity (Detail) - Performance-Based Stock Options [Member]	12 Months Ended
	Dec. 31, 2019$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding, Shares Under Option, Beginning of Period \| shares	2,106,482
Outstanding, Shares Under Option, Forfeited \| shares	(165,337)
Outstanding, Shares Under Option, End of Period \| shares	1,941,145
Weighted Average Exercise Price, Beginning of Period \| $ / shares	$ 513.50
Weighted Average Exercise Price, Forfeited \| $ / shares	513.50
Weighted Average Exercise Price, End of Period \| $ / shares	$ 513.50

Stock-Based Compensation - Sche

Stock-Based Compensation - Schedule of Fair Value of Market Performance-Based Award at Grant Date (Detail) - Performance-Based Stock Options [Member]	12 Months Ended
	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected Term (Years)	6 years 6 months 21 days
Expected Stock Volatility	22.23%
Expected Dividend Yield	2.16%
Risk-Free Interest Rate	2.33%

Employee Benefit Plans - Additi

Employee Benefit Plans - Additional Information (Detail)	1 Months Ended	12 Months Ended
Employee Benefit Plans - Additional Information (Detail)	Jan. 31, 2020USD ($)	Dec. 31, 2019USD ($)installment	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Deferred Compensation Plans [Member]
Deferred Compensation Plans, Defined Contribution Plans and Defined Benefit Plans [Line Items]
Other deferred compensation plan liability		$ 311,000,000	$ 236,000,000
Deferred Compensation Plans [Member] \| Subsequent Event [Member]
Deferred Compensation Plans, Defined Contribution Plans and Defined Benefit Plans [Line Items]
Additional deferred compensation granted	$ 137,000,000
Deferred compensation, vesting period	3 years
Deferred Compensation Plans [Member] \| Voluntary Deferred Compensation Plan [Member]
Deferred Compensation Plans, Defined Contribution Plans and Defined Benefit Plans [Line Items]
Deferred compensation plan, annual percentage of incentive compensation deferred, minimum		1.00%
Deferred compensation plan, annual percentage of incentive compensation deferred, maximum		100.00%
Deferred compensation plan, deferral period, years		up to 10 years
Deferred compensation plan, number of annual installments \| installment		10
Deferred Compensation Plans [Member] \| Rabbi Trust [Member]
Deferred Compensation Plans, Defined Contribution Plans and Defined Benefit Plans [Line Items]
Deferred compensation plan assets		$ 23,000,000	34,000,000
Deferred compensation plan liability		$ 80,000,000	71,000,000
Defined Contribution Plans [Member] \| U.S. Plan [Member]
Deferred Compensation Plans, Defined Contribution Plans and Defined Benefit Plans [Line Items]
Defined contribution plan, employee contribution, percentage of employee compensation, maximum		8.00%
Defined Contribution plan, employer matching contribution percentage of employee contribution		50.00%
Defined contribution plan, employer matching annual contribution, percentage of eligible compensation, minimum		3.00%
Defined contribution plan, employer matching annual contribution, percentage of eligible compensation, maximum		5.00%
Defined contribution plan, employer matching contribution, maximum amount		$ 5,000
Defined contribution plan expense		$ 66,000,000	63,000,000	$ 78,000,000
Defined Contribution Plans [Member] \| U.K. Plan [Member]
Deferred Compensation Plans, Defined Contribution Plans and Defined Benefit Plans [Line Items]
Defined contribution plan, employee contribution, percentage of employee compensation, maximum		15.00%
Defined contribution plan, employer matching annual contribution, percentage of eligible compensation, minimum		6.00%
Defined contribution plan expense		$ 41,000,000	35,000,000	29,000,000
Defined Contribution Plans [Member] \| Other Regions [Member]
Deferred Compensation Plans, Defined Contribution Plans and Defined Benefit Plans [Line Items]
Defined contribution plan expense		29,000,000	22,000,000	$ 21,000,000
Defined Benefit Plans [Member] \| Japan and Germany Plan [Member]
Deferred Compensation Plans, Defined Contribution Plans and Defined Benefit Plans [Line Items]
Deferred compensation plan assets		$ 28,000,000	$ 26,000,000

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Related Party Transaction [Line Items]
Due from related parties	$ 119	$ 179
Due to related parties	12	11
BlackRock Mutual Funds and iShares ETFs [Member]
Related Party Transaction [Line Items]
Accounts receivable from related parties	995	878
General and Administration Expense [Member]
Related Party Transaction [Line Items]
Expense with related parties	$ 2	$ 2	$ 10
PNC [Member]
Related Party Transaction [Line Items]
Percentage of common stock of parent owned	22.00%
Percentage of capital stock of parent owned	22.40%

Related Party Transactions - Re

Related Party Transactions - Revenue for Services Provided to Related Parties (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Related Party Transaction [Line Items]
Revenues from related parties	$ 8,522	$ 8,412	$ 7,903
Investment Advisory, Administration Fees and Securities Lending Revenue [Member]
Related Party Transaction [Line Items]
Revenues from related parties	8,323	8,226	7,692
Investment Advisory Performance Fees [Member]
Related Party Transaction [Line Items]
Revenues from related parties	131	112	143
Technology Services Revenue [Member]
Related Party Transaction [Line Items]
Revenues from related parties	9	9	9
Advisory and Other Revenue [Member]
Related Party Transaction [Line Items]
Revenues from related parties	$ 59	$ 65	$ 59

Net Capital Requirements - Summ

Net Capital Requirements - Summary of Capital Adequacy Requirements (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Regulatory Capital Requirements [Abstract]
Total capital (to risk weighted assets), Actual, Amount	$ 686	$ 572
Total capital (to risk weighted assets), Actual, Ratio	137.70%	131.10%
Total capital (to risk weighted assets), For Capital Adequacy Purposes, Amount	$ 40	$ 35
Total capital (to risk weighted assets), For Capital Adequacy Purposes, Ratio	8.00%	8.00%
Total capital (to risk weighted assets), To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 50	$ 44
Total capital (to risk weighted assets), To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	10.00%	10.00%
Tier 1 capital (to risk weighted assets), Actual, Amount	$ 686	$ 572
Tier 1 capital (to risk weighted assets), Actual, Ratio	137.70%	131.10%
Tier 1 capital (to risk weighted assets), For Capital Adequacy Purposes, Amount	$ 30	$ 26
Tier 1 capital (to risk weighted assets), For Capital Adequacy Purposes, Ratio	6.00%	6.00%
Tier 1 capital (to risk weighted assets), To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 40	$ 35
Tier 1 capital (to risk weighted assets), To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	8.00%	8.00%
Tier 1 capital (to average assets), Actual, Amount	$ 686	$ 572
Tier 1 capital (to average assets), Actual, Ratio	72.80%	58.00%
Tier 1 capital (to average assets), For Capital Adequacy Purposes, Amount	$ 38	$ 39
Tier 1 capital (to average assets), For Capital Adequacy Purposes, Ratio	4.00%	4.00%
Tier 1 capital (to average assets), To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 47	$ 49
Tier 1 capital (to average assets), To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	5.00%	5.00%
Common Equity Tier 1 capital (to risk weighted assets), Actual, Amount	$ 686	$ 572
Common Equity Tier 1 capital (to risk weighted assets), Actual, Ratio	137.70%	131.10%
Common Equity Tier 1 capital (to risk weighted assets), For Capital Adequacy Purposes, Amount	$ 22	$ 20
Common Equity Tier 1 capital (to risk weighted assets), For Capital Adequacy Purposes, Ratio	4.50%	4.50%
Common Equity Tier 1 capital (to risk weighted assets), To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 32	$ 28
Common Equity Tier 1 capital (to risk weighted assets), To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	6.50%	6.50%

Net Capital Requirements - Addi

Net Capital Requirements - Additional Information (Detail) - USD ($) $ in Billions	Dec. 31, 2019	Dec. 31, 2018
Regulatory Capital Requirements [Abstract]
Net capital requirement in certain regulated subsidiaries	$ 1.9	$ 1.8

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Loss) - Changes in AOCI (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance		$ 32,433	$ 31,848	$ 29,140
Foreign currency translation adjustments	[1]	120	(253)	284
Balance		33,613	32,433	31,848
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance		(691)	(432)	(716)
Foreign currency translation adjustments	[1]	120	(253)	284
Reclassification as a result of adoption of accounting guidance			(6)
Balance		$ (571)	$ (691)	$ (432)

[1]	Amounts for 2019 and 2018 include gains from a net investment hedge of $11 million (net of tax expense of $3 million) and $30 million (net of tax expense of $10 million), respectively. Amount for 2017 includes a loss from a net investment hedge of $64 million (net of tax benefit of $38 million)

Accumulated Other Comprehensi_4

Accumulated Other Comprehensive Income (Loss) - Changes in AOCI (Parenthetical) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Amounts Reclassified Out Of Accumulated Other Comprehensive Income Loss [Abstract]
Gain (loss) from net investment hedging, net of tax	$ 11	$ 30	$ (64)
Gain (loss) from net investment hedging, tax (expense) benefit	$ (3)	$ (10)	$ 38

Capital Stock - Additional Info

Capital Stock - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	Mar. 25, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Schedule of Capitalization, Equity [Line Items]
Common stock, par value		$ 0.01	$ 0.01
Preferred stock, par value		0.01	0.01
Dividends, cash per common or preferred share		$ 13.20	$ 12.02	$ 10
Aggregate dividends		$ 2,096	$ 1,968	$ 1,662
Common shares repurchased		4,000,000
Common shares repurchased, value		$ 1,666	$ 1,660	$ 1,100
Shares authorized to be repurchased		5,900,000
Private Transaction
Schedule of Capitalization, Equity [Line Items]
Common shares repurchased, value	$ 1,300
Series C Nonvoting Participating Preferred Stock [Member]
Schedule of Capitalization, Equity [Line Items]
Preferred stock, par value		$ 0.01	$ 0.01
Series C Nonvoting Participating Preferred Stock [Member] \| PNC [Member]
Schedule of Capitalization, Equity [Line Items]
Surrender of share of series non- voting preferred stock		143,458	103,064

Capital Stock - Common and Pref

Capital Stock - Common and Preferred Stock Authorized (Detail) - shares	Dec. 31, 2019	Dec. 31, 2018
Class of Stock [Line Items]
Common stock, shares authorized	500,000,000	500,000,000
Series A Nonvoting Participating Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock, shares authorized	20,000,000	20,000,000
Series B Nonvoting Participating Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock, shares authorized	150,000,000	150,000,000
Series C Nonvoting Participating Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock, shares authorized	6,000,000	6,000,000
Series D Nonvoting Participating Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock, shares authorized	20,000,000	20,000,000

Capital Stock - Common and Pr_2

Capital Stock - Common and Preferred Shares Issued and Outstanding and Related Activity (Detail) - shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Common Stock [Member]
Schedule of Capitalization, Equity [Line Items]
Shares, beginning balance	171,252,185	171,252,185	171,252,185
Shares repurchased	0	0	0
Net issuance of common shares related to employee stock transactions	0	0	0
PNC LTIP capital contribution	0	0	0
Shares, ending balance	171,252,185	171,252,185	171,252,185
Common Stock [Member] \| Shares Outstanding [Member]
Schedule of Capitalization, Equity [Line Items]
Shares, beginning balance	157,553,501	159,977,115	161,534,443
Shares repurchased	(4,018,905)	(3,511,603)	(2,647,670)
Net issuance of common shares related to employee stock transactions	841,184	1,087,989	1,090,342
PNC LTIP capital contribution	0	0	0
Shares, ending balance	154,375,780	157,553,501	159,977,115
Treasury Stock Common [Member]
Schedule of Capitalization, Equity [Line Items]
Shares, beginning balance	(13,698,684)	(11,275,070)	(9,717,742)
Shares repurchased	(4,018,905)	(3,511,603)	(2,647,670)
Net issuance of common shares related to employee stock transactions	841,184	1,087,989	1,090,342
PNC LTIP capital contribution	0	0	0
Shares, ending balance	(16,876,405)	(13,698,684)	(11,275,070)
Series B Nonvoting Participating Preferred Stock [Member]
Schedule of Capitalization, Equity [Line Items]
Shares, beginning balance	823,188	823,188	823,188
Shares repurchased	0	0	0
Net issuance of common shares related to employee stock transactions	0	0	0
PNC LTIP capital contribution	0	0	0
Shares, ending balance	823,188	823,188	823,188
Series B Nonvoting Participating Preferred Stock [Member] \| Shares Outstanding [Member]
Schedule of Capitalization, Equity [Line Items]
Shares, beginning balance	823,188	823,188	823,188
Shares repurchased	0	0	0
Net issuance of common shares related to employee stock transactions	0	0	0
PNC LTIP capital contribution	0	0	0
Shares, ending balance	823,188	823,188	823,188
Series C Nonvoting Participating Preferred Stock [Member]
Schedule of Capitalization, Equity [Line Items]
Shares, beginning balance	143,458	246,522	763,660
Shares repurchased	0	0	0
Net issuance of common shares related to employee stock transactions	0	0	0
PNC LTIP capital contribution	(143,458)	(103,064)	(517,138)
Shares, ending balance	0	143,458	246,522
Series C Nonvoting Participating Preferred Stock [Member] \| Shares Outstanding [Member]
Schedule of Capitalization, Equity [Line Items]
Shares, beginning balance	143,458	246,522	763,660
Shares repurchased	0	0	0
Net issuance of common shares related to employee stock transactions	0	0	0
PNC LTIP capital contribution	(143,458)	(103,064)	(517,138)
Shares, ending balance	0	143,458	246,522

Restructuring Charge - Addition

Restructuring Charge - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2018
Restructuring Cost And Reserve [Line Items]
Pre-tax restructuring charge	$ 60	$ 60
After-tax restructuring charge	47
Employee Severance [Member]
Restructuring Cost And Reserve [Line Items]
Pre-tax restructuring charge	53
Accelerated Amortization of Equity Compensation Awards [Member]
Restructuring Cost And Reserve [Line Items]
Pre-tax restructuring charge	$ 7

Restructuring Charge - Rollforw

Restructuring Charge - Rollforward of Restructuring Liability (Detail) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Restructuring And Related Activities [Abstract]
Restructuring liability, beginning balance		$ 53	$ 0
Additions	$ 60		60
Accelerated amortization expense of equity-based awards			(7)
Cash payments		$ (53)
Restructuring liability, ending balance	$ 53		$ 53

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
Income Tax Disclosure [Abstract]
Current income tax expense: Federal	$ 735	$ 605	$ 1,166
Current income tax expense: State and local	109	97	36
Current income tax expense: Foreign	400	600	289
Total net current income tax expense	1,244	1,302	1,491
Deferred income tax expense (benefit): Federal	15	(71)	(1,382)
Deferred income tax expense (benefit): State and local	7	(1)	81
Deferred income tax expense (benefit): Foreign	(5)	(154)	80
Total net deferred income tax expense (benefit)	17	(226)	(1,221)
Total income tax expense	$ 1,261	$ 1,076	$ 270

Income Taxes - Components of _2

Income Taxes - Components of Income before Taxes, Less Net Income (Loss) Attributable to Noncontrolling Interests (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Components Of Income Before Tax Less Noncontrolling Interest [Line Items]
Income tax expense based on components of income before taxes, net income (loss) attributable to non-controlling interests	$ 5,737	$ 5,381	$ 5,222
Domestic [Member]
Components Of Income Before Tax Less Noncontrolling Interest [Line Items]
Income tax expense based on components of income before taxes, net income (loss) attributable to non-controlling interests	3,766	3,536	3,280
Foreign [Member]
Components Of Income Before Tax Less Noncontrolling Interest [Line Items]
Income tax expense based on components of income before taxes, net income (loss) attributable to non-controlling interests	$ 1,971	$ 1,845	$ 1,942

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended			12 Months Ended
	Mar. 31, 2019	Sep. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Taxes Disclosure [Line Items]
Federal statutory tax rate				21.00%	21.00%	35.00%
Deferred tax asset				$ 796	$ 643
Deferred income tax liabilities				3,734	3,571
Discrete income tax benefit for vested stock awards	$ 22		$ 56	28	64
Discrete income tax benefit related to changes in organizational structure		$ 90			81
Deferred tax assets, valuation allowance				51	68
Income taxes receivable				282	282
Income taxes payable				293	341
Unrecognized tax benefits that would affect effective tax rate if recognized				513	462	$ 316
Interest and penalties accrued during period				27	30	17
Liability for interest and penalties				133	106	$ 76
Minimum [Member]
Income Taxes Disclosure [Line Items]
Liability for uncertain tax positions				5
Maximum [Member]
Income Taxes Disclosure [Line Items]
Liability for uncertain tax positions				20
Related to the Same Tax Jurisdiction [Member]
Income Taxes Disclosure [Line Items]
Deferred tax asset				175	163
Deferred income tax liabilities				3,734	3,571
State and Local Jurisdiction [Member]
Income Taxes Disclosure [Line Items]
Net operating loss carryforwards				$ 1,900	2,900
Net operating loss carryforwards, maturity year				2020
Foreign [Member]
Income Taxes Disclosure [Line Items]
Net operating loss carryforwards				$ 110	$ 76
Net operating loss carryforwards, maturity year				2021
Foreign net loss carry forwards, subject to expiration				$ 3

Income Taxes - Reconciliation o

Income Taxes - Reconciliation of Income Tax Expense with Expected Federal Income Tax Expense (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Statutory income tax expense, amount	$ 1,205	$ 1,130	$ 1,834
State and local taxes (net of federal benefit), amount	96	99	60
Impact of federal, foreign, state, and local tax rate changes on deferred taxes, amount	5	0	(1,637)
Mandatory deemed repatriation tax, rate		0	477
Stock-based compensation awards, amount	(23)	(64)	(159)
Effect of foreign tax rates, amount	(76)	(119)	(337)
Other, amount	54	30	32
Total income tax expense	$ 1,261	$ 1,076	$ 270
Statutory income tax expense, rate	21.00%	21.00%	35.00%
State and local taxes (net of federal benefit), rate	2.00%	2.00%	1.00%
Impact of federal, foreign, state, and local tax rate changes on deferred taxes, rate			(31.00%)
Mandatory deemed repatriation tax, rate			9.00%
Stock-based compensation awards, rate		(1.00%)	(3.00%)
Effect of foreign tax rates, rate	(1.00%)	(2.00%)	(6.00%)
Other, rate	0.00%	0.00%	0.00%
Effective income tax rate	22.00%	20.00%	5.00%

Income Taxes - Components of De

Income Taxes - Components of Deferred Income Tax Assets and Liabilities (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Components Of Deferred Tax Assets And Liabilities [Abstract]
Deferred tax assets: Compensation and benefits	$ 282	$ 267
Deferred tax assets: Loss carryforwards	84	82
Deferred tax assets: Other	481	362
Gross deferred tax assets	847	711
Less: deferred tax valuation allowances	(51)	(68)
Deferred tax assets net of valuation allowances	796	643
Deferred tax liabilities: Goodwill and acquired indefinite-lived intangibles	3,971	3,939
Deferred tax liabilities: Acquired finite-lived intangibles	179	48
Unrealized investment gains	63	30
Deferred tax liabilities: Other	142	34
Gross deferred tax liabilities	4,355	4,051
Net deferred tax (liabilities)	$ (3,559)	$ (3,408)

Income Taxes - Reconciliation_2

Income Taxes - Reconciliation of Gross Unrecognized Tax Benefits (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Unrecognized tax benefits, beginning balance	$ 795	$ 629	$ 410
Additions for tax positions of prior years	99	82	161
Reductions for tax positions of prior years	(27)	(15)	(3)
Additions based on tax positions related to current year	47	102	67
Lapse of statute of limitations	(4)	(3)	(6)
Settlements	(10)
Unrecognized tax benefits, ending balance	$ 900	$ 795	$ 629

Earnings Per Share - Computatio

Earnings Per Share - Computation of Basic and Diluted EPS under Treasury Stock Method (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Earnings Per Share [Abstract]
Net income attributable to BlackRock	$ 1,301	$ 1,119	$ 1,003	$ 1,053	$ 927	$ 1,216	$ 1,073	$ 1,089	$ 4,476	$ 4,305	$ 4,952
Basic weighted-average shares outstanding	155,195,733	155,280,877	155,354,552	158,268,034	158,859,998	160,141,506	160,980,960	161,250,018	156,014,343	160,301,116	162,160,601
Dilutive effect of nonparticipating RSUs and stock options									1,445,203	1,647,616	2,254,434
Total diluted weighted-average shares outstanding	156,894,201	156,447,387	156,360,741	159,348,431	160,450,266	161,378,217	162,161,937	162,918,961	157,459,546	161,948,732	164,415,035
Basic earnings per share	$ 8.38	$ 7.21	$ 6.46	$ 6.65	$ 5.84	$ 7.59	$ 6.67	$ 6.75	$ 28.69	$ 26.86	$ 30.54
Diluted earnings per share	$ 8.29	$ 7.15	$ 6.41	$ 6.61	$ 5.78	$ 7.54	$ 6.62	$ 6.68	$ 28.43	$ 26.58	$ 30.12

Segment Information - Additiona

Segment Information - Additional Information (Detail)	12 Months Ended
Segment Information - Additional Information (Detail)	Dec. 31, 2019Segment
Segment Reporting [Abstract]
Number of business segments	1

Segment Information - Total Rev

Segment Information - Total Revenue by Geographic Region (Detail) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Revenue	$ 3,977	$ 3,692	$ 3,524	$ 3,346	$ 3,434	$ 3,576	$ 3,605	$ 3,583	$ 14,539	$ 14,198	$ 13,600
Americas [Member]
Segment Reporting Information [Line Items]
Revenue									9,703	9,303	8,798
Europe [Member]
Segment Reporting Information [Line Items]
Revenue									4,158	4,217	4,126
Asia-Pacific [Member]
Segment Reporting Information [Line Items]
Revenue									$ 678	$ 678	$ 676

Segment Information - Schedule

Segment Information - Schedule of Long-Lived Assets by Geographic Region (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Long-lived assets	$ 15,277	$ 14,169
Americas [Member]
Segment Reporting Information [Line Items]
Long-lived assets	13,830	13,780
Europe [Member]
Segment Reporting Information [Line Items]
Long-lived assets	1,360	303
Asia-Pacific [Member]
Segment Reporting Information [Line Items]
Long-lived assets	$ 87	$ 86

Selected Quarterly Financial _3

Selected Quarterly Financial Data - Schedule of Selected Quarterly Financial Data (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Revenue	$ 3,977	$ 3,692	$ 3,524	$ 3,346	$ 3,434	$ 3,576	$ 3,605	$ 3,583	$ 14,539	$ 14,198	$ 13,600
Operating income	1,538	1,502	1,278	1,233	1,246	1,396	1,440	1,375	5,551	5,457	5,254
Net income	1,334	1,119	1,013	1,060	927	1,203	1,078	1,094	4,526	4,302	4,989
Net income attributable to BlackRock, Inc.	$ 1,301	$ 1,119	$ 1,003	$ 1,053	$ 927	$ 1,216	$ 1,073	$ 1,089	$ 4,476	$ 4,305	$ 4,952
Earnings per share attributable to BlackRock, Inc. common stockholders: Basic	$ 8.38	$ 7.21	$ 6.46	$ 6.65	$ 5.84	$ 7.59	$ 6.67	$ 6.75	$ 28.69	$ 26.86	$ 30.54
Earnings per share attributable to Black Rock, Inc. common stockholders: Diluted	$ 8.29	$ 7.15	$ 6.41	$ 6.61	$ 5.78	$ 7.54	$ 6.62	$ 6.68	$ 28.43	$ 26.58	$ 30.12
Weighted-average common shares outstanding: Basic	155,195,733	155,280,877	155,354,552	158,268,034	158,859,998	160,141,506	160,980,960	161,250,018	156,014,343	160,301,116	162,160,601
Weighted-average common shares outstanding: Diluted	156,894,201	156,447,387	156,360,741	159,348,431	160,450,266	161,378,217	162,161,937	162,918,961	157,459,546	161,948,732	164,415,035
Dividend declared per share	$ 3.30	$ 3.30	$ 3.30	$ 3.30	$ 3.13	$ 3.13	$ 2.88	$ 2.88

Selected Quarterly Financial _4

Selected Quarterly Financial Data - Schedule of Selected Quarterly Financial Data (Parenthetical) (Detail) - USD ($) $ in Millions	3 Months Ended				12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract]
Discrete income tax benefit for vested stock awards	$ 22			$ 56	$ 28	$ 64
Deferred tax expense (benefit) associated with changes in organizational entity structure			$ (90)			(81)
Pre-tax restructuring charge		$ 60				$ 60

Subsequent Events - Additional

Subsequent Events - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	Feb. 13, 2020	Jan. 29, 2020	Jan. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Subsequent Event [Line Items]
Debt instrument, aggregate principal amount				$ 4,986
Dividend declared date				Jan. 29, 2020
Operating expenses				$ 8,988	$ 8,741	$ 8,346
Tax benefit				$ (1,261)	$ (1,076)	$ (270)
Subsequent Event [Member]
Subsequent Event [Line Items]
Quarterly dividend payable, per share		$ 3.63
Dividend payable date		Mar. 23, 2020
Dividend payable, record date		Mar. 5, 2020
Subsequent Event [Member] \| BlackRock Foundation [Member]
Subsequent Event [Line Items]
Operating expenses	$ 589
Operating expenses expected to be offset by noncash	125
Tax benefit	$ 241
2.40% Notes due 2030 [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Debt instrument, aggregate principal amount			$ 1,000
Debt instrument, interest rate			2.40%
Debt instrument, maturity date			Apr. 30, 2030
Debt instrument, approximate annual interest expense			$ 24
Debt instrument, payment terms			Interest of approximately $24 million per year will be payable semi-annually on April 30 and October 30 of each year, commencing April 30, 2020
Debt instrument, redemption period, end date			Jan. 30, 2030
Debt Instrument, redemption price, percentage of principal amount redeemed			100.00%