The Bank of New York Mellon Corporation (BK) 10-Q 6 Aug 20 2020 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information	6 Months Ended
	Jun. 30, 2020shares
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2020
Document Transition Report	false
Entity File Number	001-35651
Entity Registrant Name	THE BANK OF NEW YORK MELLON CORPORATION
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	13-2614959
Entity Address, Address Line One	240 Greenwich Street
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10286
City Area Code	212
Local Phone Number	495-1784
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (shares)	885,861,714
Amendment Flag	false
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q2
Entity Central Index Key	0001390777
Current Fiscal Year End Date	--12-31
Common Stock, $0.01 par value | New York Stock Exchange
Document Information [Line Items]
Title of 12(b) Security	Common Stock, $0.01 par value
Trading Symbol	BK
Security Exchange Name	NYSE
Series C Noncumulative Perpetual Preferred Stock | New York Stock Exchange
Document Information [Line Items]
Title of 12(b) Security	Depositary Shares, each representing 1/4,000th of a share of Series C Noncumulative Perpetual Preferred Stock
Trading Symbol	BK PrC
Security Exchange Name	NYSE
6.244% Fixed-to-Floating Rate Normal Preferred Capital Securities of Mellon Capital IV | New York Stock Exchange
Document Information [Line Items]
Title of 12(b) Security	6.244% Fixed-to-Floating Rate Normal Preferred Capital Securities of Mellon Capital IV
Trading Symbol	BK/P
Security Exchange Name	NYSE

Consolidated Income Statement (

Consolidated Income Statement (unaudited) - USD ($) shares in Thousands, $ in Millions		3 Months Ended			6 Months Ended
		Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020		Jun. 30, 2019
Fee and other revenue
Asset servicing fees		$ 1,173	$ 1,159	$ 1,141	$ 2,332		$ 2,263
Clearing services fees		431	470	410	901		808
Issuer services fees		277	263	291	540		542
Treasury services fees		144	149	140	293		272
Total investment services fees		2,025	2,041	1,982	4,066		3,885
Investment management and performance fees		786	862	833	1,648		1,674
Foreign exchange and other trading revenue		166	319	166	485		336
Financing-related fees		58	59	50	117		101
Distribution and servicing		27	31	31	58		62
Investment and other income		105	11	43	116		78
Total fee revenue		3,167	3,323	3,105	6,490		6,136
Net securities gains		9	9	7	18		8
Total fee and other revenue		3,176	3,332	3,112	6,508		6,144
Operations of consolidated investment management funds
Investment income (loss)		54	(38)	10	16		36
Interest of investment management fund note holders		0	0	0	0		0
Income (loss) from consolidated investment management funds		54	(38)	10	16		36
Net interest revenue
Interest revenue		943	1,570	1,965	2,513		3,885
Interest expense		163	756	1,163	919		2,242
Net interest revenue		780	814	802	1,594		1,643
Total revenue		4,010	4,108	3,924	8,118		7,823
Provision for credit losses		143	169	(8)	312	[1]	(1)	[1]
Noninterest expense
Staff		1,464	1,482	1,421	2,946		2,945
Software and equipment		345	326	304	671		587
Professional, legal and other purchased services		337	330	337	667		662
Net occupancy		137	135	138	272		275
Sub-custodian and clearing		120	105	115	225		220
Distribution and servicing		85	91	94	176		185
Bank assessment charges		35	35	31	70		62
Business development		20	42	56	62		101
Amortization of intangible assets		26	26	30	52		59
Other		117	140	121	257		250
Total noninterest expense		2,686	2,712	2,647	5,398		5,346
Income
Income before income taxes		1,181	1,227	1,285	2,408		2,478
Provision for income taxes		216	265	264	481		501
Net income		965	962	1,021	1,927		1,977
Net (income) loss attributable to noncontrolling interests related to consolidated investment management funds		(15)	18	(4)	3		(14)
Net income applicable to shareholders of The Bank of New York Mellon Corporation		950	980	1,017	1,930		1,963
Preferred stock dividends		(49)	(36)	(48)	(85)		(84)
Net income applicable to common shareholders of The Bank of New York Mellon Corporation		901	944	969	1,845		1,879
Net income applicable to common shareholders of The Bank of New York Mellon Corporation used for the earnings per share calculation
Net income applicable to common shareholders of The Bank of New York Mellon Corporation		901	944	969	1,845		1,879
Less: Earnings allocated to participating securities		1	3	4	4		9
Net income applicable to common shareholders of The Bank of New York Mellon Corporation after required adjustment for the calculation of basic and diluted earnings per common share		$ 900	$ 941	$ 965	$ 1,841		$ 1,870
Average common shares and equivalents outstanding of The Bank of New York Mellon Corporation
Basic (shares)		889,020	894,122	951,281	891,642		956,887
Common stock equivalents (shares)		2,044	3,941	3,891	2,866		4,894
Less: Participating securities (shares)		(503)	(1,374)	(1,244)	(905)		(1,824)
Diluted (shares)		890,561	896,689	953,928	893,603		959,957
Anti-dilutive securities (shares)	[2]	1,578	2,584	3,999	2,052		4,704
Earnings per share applicable to the common shareholders of The Bank of New York Mellon Corporation
Basic (usd per share)		$ 1.01	$ 1.05	$ 1.01	$ 2.06		$ 1.95
Diluted (usd per share)		$ 1.01	$ 1.05	$ 1.01	$ 2.06		$ 1.95
[1]	In the first quarter of 2020, we adopted new accounting guidance included in ASU 2016-13, Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments, on a prospective basis. See Note 2 of the Notes to Consolidated Financial Statements for additional information.
[2]	Represents stock options, restricted stock, restricted stock units and participating securities outstanding but not included in the computation of diluted average common shares because their effect would be anti-dilutive.

Consolidated Comprehensive Inco

Consolidated Comprehensive Income Statement (unaudited) - USD ($) $ in Millions		3 Months Ended			6 Months Ended
		Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income		$ 965	$ 962	$ 1,021	$ 1,927	$ 1,977
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments		115	(369)	10	(254)	39
Unrealized gain on assets available-for-sale:
Unrealized gain arising during the period		753	183	287	936	526
Reclassification adjustment		(7)	(7)	(5)	(14)	(6)
Total unrealized gain on assets available-for-sale		746	176	282	922	520
Defined benefit plans:
Net (loss) arising during the period		0	0	0	0	(9)
Amortization of prior service credit, net loss and initial obligation included in net periodic benefit cost		19	18	10	37	20
Total defined benefit plans		19	18	10	37	11
Net unrealized gain (loss) on cash flow hedges		4	(11)	0	(7)	5
Total other comprehensive income (loss), net of tax	[1]	884	(186)	302	698	575
Total comprehensive income		1,849	776	1,323	2,625	2,552
Total comprehensive income		(15)	18	(4)	3	(14)
Other comprehensive loss (income) attributable to noncontrolling interests		0	2	0	2	(2)
Comprehensive income applicable to shareholders of The Bank of New York Mellon Corporation		1,834	796	1,319	2,630	2,536
Other comprehensive (loss) income attributable to The Bank of New York Mellon Corporation shareholders		$ 884	$ (184)	$ 302	$ 700	$ 573
[1]	Other comprehensive income (loss) attributable to The Bank of New York Mellon Corporation shareholders was $884 million for the quarter ended June 30, 2020 , $(184) million for the quarter ended March 31, 2020 , $302 million for the quarter ended June 30, 2019 , $700 million for the six months ended June 30, 2020 and $573 million for the six months ended June 30, 2019 .

Consolidated Balance Sheet (una

Consolidated Balance Sheet (unaudited) - USD ($) $ in Millions		Jun. 30, 2020		Dec. 31, 2019
Securities:
Held-to-maturity (including allowance for credit losses of less than $1 at June 30, 2020; fair value of $45,983 and $34,805)		$ 44,615		$ 34,483
Available-for-sale (including allowance for credit losses of $12 at June 30, 2020; amortized cost of $106,668 and $87,435)		110,067		88,550
Goodwill		17,253		17,386
Intangible assets		3,045		3,107
Other assets (including allowance for credit losses on accounts receivable of $4 at June 30, 2020, also includes $529 and $419, at fair value)		21,306		20,221
Total assets		442,316		381,508
Deposits:
Total liabilities		398,350		339,780
Temporary equity
Redeemable noncontrolling interests		157		143
Permanent equity
Preferred stock – par value $0.01 per share; authorized 100,000,000 shares; issued 45,826 and 35,826 shares		4,532		3,542
Common stock – par value $0.01 per share; authorized 3,500,000,000 shares; issued 1,381,361,699 and 1,374,443,376 shares		14		14
Additional paid-in capital		27,702		27,515
Retained earnings		33,224		31,894
Accumulated other comprehensive loss, net of tax		(1,943)		(2,638)
Less: Treasury stock of 495,499,985 and 473,760,338 common shares, at cost		(19,832)		(18,844)
Total The Bank of New York Mellon Corporation shareholders’ equity		43,697		41,483
Nonredeemable noncontrolling interests of consolidated investment management funds		112		102
Total permanent equity	[2]	43,809	[1]	41,585	[3]
Total liabilities, temporary equity and permanent equity		442,316		381,508
Investment Management funds
Securities:
Trading assets		450		229
Assets of consolidated investment management funds, at fair value		460		245
Deposits:
Liabilities of consolidated investment management funds, at fair value		4		1
Operating segments
Assets
Cash and due from banks (including allowance for credit losses of $4 at June 30, 2020)	[4]	4,776		4,830
Interest-bearing deposits with the Federal Reserve and other central banks		112,728		95,042
Interest-bearing deposits with banks (including allowance for credit losses of $1 at June 30, 2020; $2,210 and $2,437 is restricted)	[4]	18,045		14,811
Federal funds sold and securities purchased under resale agreements (including allowance for credit losses of $(-) at June 30, 2020)		36,638		30,182
Securities:
Held-to-maturity (including allowance for credit losses of less than $1 at June 30, 2020; fair value of $45,983 and $34,805)	[4]	44,615		34,483
Available-for-sale (including allowance for credit losses of $12 at June 30, 2020; amortized cost of $106,668 and $87,435)	[4]	110,067		88,550
Total securities		154,682		123,033
Trading assets		14,150		13,571
Loans		55,397		54,953
Allowance for credit losses	[4]	(302)		(122)
Net loans		55,095		54,831
Premises and equipment		3,598		3,625
Accrued interest receivable		540		624
Goodwill		17,253		17,386
Intangible assets		3,045		3,107
Other assets (including allowance for credit losses on accounts receivable of $4 at June 30, 2020, also includes $529 and $419, at fair value)	[4]	21,306		20,221
Total assets		441,856		381,263
Deposits:
Noninterest-bearing (principally U.S. offices)		78,100		57,630
Interest-bearing deposits in U.S. offices		121,242		101,542
Interest-bearing deposits in non-U.S. offices		106,128		100,294
Total deposits		305,470		259,466
Federal funds purchased and securities sold under repurchase agreements		14,512		11,401
Trading liabilities		5,595		4,841
Payables to customers and broker-dealers		25,012		18,758
Commercial paper		665		3,959
Other borrowed funds		1,628		599
Accrued taxes and other expenses		5,029		5,642
Other liabilities (including allowance for credit losses on lending-related commitments of $152 and $94, also includes $964 and $607, at fair value)	[4]	12,869		7,612
Long-term debt (includes $399 and $387, at fair value)		27,566		27,501
Total liabilities		398,346		339,779
Operating segments | Investment Management funds
Securities:
Assets of consolidated investment management funds, at fair value		460		245
Deposits:
Liabilities of consolidated investment management funds, at fair value		$ 4		$ 1
[1]	Includes total The Bank of New York Mellon Corporation common shareholders’ equity of $37,603 million at March 31, 2020 and $39,165 million at June 30, 2020 .
[2]	Includes total The Bank of New York Mellon Corporation common shareholders’ equity of $37,941 million at Dec. 31, 2019 and $39,165 million at June 30, 2020 .
[3]	Includes total The Bank of New York Mellon Corporation common shareholders’ equity of $37,941 million at Dec. 31, 2019 and $37,603 million at March 31, 2020 .
[4]	In the first quarter of 2020, we adopted new accounting guidance included in ASU 2016-13, Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments, on a prospective basis. See Note 2 of the Notes to Consolidated Financial Statements for additional information.

Consolidated Balance Sheet (u_2

Consolidated Balance Sheet (unaudited) (Parenthetical) - USD ($)	Jun. 30, 2020	Dec. 31, 2019
Restricted cash	$ 2,000,000,000	$ 2,000,000,000
Debt securities, held-to-maturity, fair value	45,983,000,000	34,805,000,000
Debt securities, available-for-sale, allowance for credit loss	12,000,000
Debt securities, available-for-sale, amortized cost	106,668,000,000	87,435,000,000
Long-term debt, fair value	$ 399,000,000	$ 387,000,000
Preferred stock, par value (usd per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (shares)	100,000,000	100,000,000
Preferred stock, issued (shares)	45,826	35,826
Common stock, par value (usd per share)	$ 0.01	$ 0.01
Common stock, authorized (shares)	3,500,000,000	3,500,000,000
Common stock, issued (shares)	1,381,361,699	1,374,443,376
Treasury stock, common shares (shares)	495,499,985	473,760,338
Operating segments
Cash and due from banks, allowance for credit loss	$ 4,000,000
Interest-bearing deposits with banks, allowance for credit losses	1,000,000
Restricted cash	2,210,000,000	$ 2,437,000,000
Federal funds sold and securities purchased under resale agreements, allowance for credit losses	0
Debt securities, held-to-maturity, allowance for credit loss (less than)	0
Debt securities, held-to-maturity, fair value	45,983,000,000	34,805,000,000
Debt securities, available-for-sale, allowance for credit loss	12,000,000
Debt securities, available-for-sale, amortized cost	106,668,000,000	87,435,000,000
Other assets, allowance for credit loss on accounts receivable	4,000,000
Other assets, fair value	529,000,000	419,000,000
Allowance for credit losses on lending related commitments	152,000,000	94,000,000
Other liabilities, fair value	964,000,000	607,000,000
Long-term debt, fair value	$ 399,000,000	$ 387,000,000

Consolidated Statement of Cash

Consolidated Statement of Cash Flows (unaudited) - USD ($) $ in Millions		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019
Operating activities
Net income		$ 1,927	$ 1,977
Net loss (income) attributable to noncontrolling interests		3	(14)
Net income applicable to shareholders of The Bank of New York Mellon Corporation		1,930	1,963
Adjustments to reconcile net income to net cash provided by (used for) operating activities:
Provision for credit losses	[1]	312	(1)
Pension plan contributions		(12)	(22)
Depreciation and amortization		744	635
Deferred tax (benefit)		(363)	(110)
Net securities (gains)		(18)	(8)
Change in trading assets and liabilities		171	(1,306)
Change in accruals and other, net		2,361	(3,665)
Net cash provided by (used for) operating activities		5,125	(2,514)
Investing activities
Change in interest-bearing deposits with banks		(3,710)	(1,618)
Change in interest-bearing deposits with the Federal Reserve and other central banks		(18,117)	(1,714)
Purchases of securities held-to-maturity		(14,499)	(3,739)
Paydowns of securities held-to-maturity		3,541	2,078
Maturities of securities held-to-maturity		1,836	1,380
Purchases of securities available-for-sale		(44,865)	(21,503)
Sales of securities available-for-sale		8,414	6,346
Paydowns of securities available-for-sale		4,416	3,226
Maturities of securities available-for-sale		12,241	14,143
Net change in loans		(610)	4,116
Sales of loans and other real estate		2	52
Change in federal funds sold and securities purchased under resale agreements		(6,516)	(14,401)
Net change in seed capital investments		19	25
Purchases of premises and equipment/capitalized software		(623)	(717)
Other, net		(275)	940
Net cash (used for) investing activities		(58,746)	(11,386)
Financing activities
Change in deposits		47,576	14,255
Change in federal funds purchased and securities sold under repurchase agreements		3,155	(2,486)
Change in payables to customers and broker-dealers		6,260	(778)
Change in other borrowed funds		1,036	(1,328)
Change in commercial paper		(3,294)	6,955
Net proceeds from the issuance of long-term debt		2,246	1,248
Repayments of long-term debt		(3,000)	(2,750)
Proceeds from the exercise of stock options		33	35
Issuance of common stock		6	16
Issuance of preferred stock		990	0
Treasury stock acquired		(988)	(1,305)
Common cash dividends paid		(560)	(540)
Preferred cash dividends paid		(85)	(84)
Other, net		15	7
Net cash provided by financing activities		53,390	13,245
Effect of exchange rate changes on cash		(50)	(11)
Change in cash and due from banks and restricted cash
Change in cash and due from banks and restricted cash		(281)	(666)
Cash and due from banks and restricted cash at beginning of period		7,267	8,258
Cash and due from banks and restricted cash at end of period		6,986	7,592
Cash and due from banks and restricted cash at end of period		6,986	7,592
Supplemental disclosures
Interest paid		1,013	2,238
Income taxes paid		756	461
Income taxes refunded		$ 11	$ 347
[1]	In the first quarter of 2020, we adopted new accounting guidance included in ASU 2016-13, Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments, on a prospective basis. See Note 2 of the Notes to Consolidated Financial Statements for additional information.

Consolidated Statement of Chang

Consolidated Statement of Changes in Equity (unaudited) - USD ($) $ in Millions	Total		Preferred stock	Common stock	Additional paid-in capital	Retained earnings	Accumulated other comprehensive (loss), net of tax	Treasury stock	Non-redeemable noncontrolling interests of consolidated investment management funds	Redeemable non- controlling interests/ temporary equity	Cumulative Effect, Period Of Adoption, Adjustment	Cumulative Effect, Period Of Adoption, AdjustmentRetained earnings	Cumulative Effect, Period Of Adoption, AdjustmentAccumulated other comprehensive (loss), net of tax	Cumulative Effect, Period of Adoption, Adjusted Balance	Cumulative Effect, Period of Adoption, Adjusted BalancePreferred stock	Cumulative Effect, Period of Adoption, Adjusted BalanceCommon stock	Cumulative Effect, Period of Adoption, Adjusted BalanceAdditional paid-in capital	Cumulative Effect, Period of Adoption, Adjusted BalanceRetained earnings	Cumulative Effect, Period of Adoption, Adjusted BalanceAccumulated other comprehensive (loss), net of tax	Cumulative Effect, Period of Adoption, Adjusted BalanceTreasury stock	Cumulative Effect, Period of Adoption, Adjusted BalanceNon-redeemable noncontrolling interests of consolidated investment management funds	Cumulative Effect, Period of Adoption, Adjusted BalanceRedeemable non- controlling interests/ temporary equity
Dividends:
The Bank of New York Mellon Corporation shareholders’ equity				$ 37,096
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201602Member
Beginning balance at Dec. 31, 2018	$ 40,739	[1]	$ 3,542	14	$ 27,118	$ 28,652	$ (3,171)	$ (15,517)	$ 101	$ 129	$ 0	$ 90	$ (90)	$ 40,739	$ 3,542	$ 14	$ 27,118	$ 28,742	$ (3,261)	$ (15,517)	$ 101	$ 129
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued to shareholders of noncontrolling interests										36
Redemption of subsidiary shares from noncontrolling interests										(7)
Other net changes in noncontrolling interests	72				21				51	(24)
Net income	1,977					1,963			14
Other comprehensive (loss) income attributable to The Bank of New York Mellon Corporation shareholders	573						573
Other comprehensive income (loss)	2									2
Dividends:
Common stock	(540)					(540)
Preferred stock	(84)					(84)
Repurchase of common stock	(1,305)							(1,305)
Common stock issued under employee benefit plans	16				16
Direct stock purchase and dividend reinvestment plan	11				11
Stock awards and options exercised	240				240
Ending balance at Jun. 30, 2019	$ 41,699	[1],[2]	3,542	14	27,406	30,081	(2,688)	(16,822)	166	136
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201613Member
Beginning balance at Dec. 31, 2018	$ 40,739	[1]	3,542	14	27,118	28,652	(3,171)	(15,517)	101	129	0	90	(90)	40,739	3,542	14	27,118	28,742	(3,261)	(15,517)	101	129
Ending balance at Dec. 31, 2019	41,585	[3],[4]	3,542	14	27,515	31,894	(2,638)	(18,844)	102	143	40	45	(5)	41,625	3,542	14	27,515	31,939	(2,643)	(18,844)	102	143
Dividends:
The Bank of New York Mellon Corporation shareholders’ equity				37,683
Beginning balance at Mar. 31, 2019	41,347	[2]	3,542	14	27,349	29,382	(2,990)	(16,072)	122	122
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued to shareholders of noncontrolling interests										16
Other net changes in noncontrolling interests	42				2				40	(2)
Net income	1,021					1,017			4
Other comprehensive (loss) income attributable to The Bank of New York Mellon Corporation shareholders	302						302
Other comprehensive income (loss)	0
Dividends:
Common stock	(270)					(270)
Preferred stock	(48)					(48)
Repurchase of common stock	(750)							(750)
Common stock issued under employee benefit plans	6				6
Stock awards and options exercised	49				49
Ending balance at Jun. 30, 2019	41,699	[1],[2]	3,542	14	27,406	30,081	(2,688)	(16,822)	166	136
Dividends:
The Bank of New York Mellon Corporation shareholders’ equity				37,991
The Bank of New York Mellon Corporation shareholders’ equity	41,483			37,941
Beginning balance at Dec. 31, 2019	41,585	[3],[4]	3,542	14	27,515	31,894	(2,638)	(18,844)	102	143	40	45	(5)	41,625	3,542	14	27,515	31,939	(2,643)	(18,844)	102	143
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued to shareholders of noncontrolling interests										17
Redemption of subsidiary shares from noncontrolling interests										(16)
Other net changes in noncontrolling interests	5				(5)				10	(2)
Net income	962					980			(18)
Other comprehensive (loss) income attributable to The Bank of New York Mellon Corporation shareholders	(184)						(184)
Other comprehensive income (loss)	(2)									(2)
Dividends:
Common stock	(282)					(282)
Preferred stock	(36)					(36)
Repurchase of common stock	(985)							(985)
Common stock issued under employee benefit plans	9				9
Stock awards and options exercised	125				125
Ending balance at Mar. 31, 2020	$ 41,239	[3],[5]	3,542	14	27,644	32,601	(2,827)	(19,829)	94	140
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201613Member
Beginning balance at Dec. 31, 2019	$ 41,585	[3],[4]	3,542	14	27,515	31,894	(2,638)	(18,844)	102	143	$ 40	$ 45	$ (5)	$ 41,625	$ 3,542	$ 14	$ 27,515	$ 31,939	$ (2,643)	$ (18,844)	$ 102	$ 143
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued to shareholders of noncontrolling interests										34
Redemption of subsidiary shares from noncontrolling interests										(16)
Other net changes in noncontrolling interests	8				(5)				13	(2)
Net income	1,927					1,930			(3)
Other comprehensive (loss) income attributable to The Bank of New York Mellon Corporation shareholders	700						700
Other comprehensive income (loss)	(2)									(2)
Dividends:
Common stock	(560)					(560)
Preferred stock	(85)					(85)
Repurchase of common stock	(988)							(988)
Common stock issued under employee benefit plans	15				15
Preferred stock issued	990		990
Stock awards and options exercised	177				177
Ending balance at Jun. 30, 2020	43,809	[4],[5]	4,532	14	27,702	33,224	(1,943)	(19,832)	112	157
Dividends:
The Bank of New York Mellon Corporation shareholders’ equity				37,603
Beginning balance at Mar. 31, 2020	41,239	[3],[5]	3,542	14	27,644	32,601	(2,827)	(19,829)	94	140
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued to shareholders of noncontrolling interests										17
Other net changes in noncontrolling interests	3								3
Net income	965					950			15
Other comprehensive (loss) income attributable to The Bank of New York Mellon Corporation shareholders	884						884
Other comprehensive income (loss)	0
Dividends:
Common stock	(278)					(278)
Preferred stock	(49)					(49)
Repurchase of common stock	(3)							(3)
Common stock issued under employee benefit plans	6				6
Preferred stock issued	990		990
Stock awards and options exercised	52				52
Ending balance at Jun. 30, 2020	43,809	[4],[5]	$ 4,532	14	$ 27,702	$ 33,224	$ (1,943)	$ (19,832)	$ 112	$ 157
Dividends:
The Bank of New York Mellon Corporation shareholders’ equity	$ 43,697			$ 39,165
[1]	Includes total The Bank of New York Mellon Corporation common shareholders’ equity of $37,096 million at Dec. 31, 2018 and $37,991 million at June 30, 2019 .
[2]	Includes total The Bank of New York Mellon Corporation common shareholders’ equity of $37,683 million at March 31, 2019 and $37,991 million at June 30, 2019 .
[3]	Includes total The Bank of New York Mellon Corporation common shareholders’ equity of $37,941 million at Dec. 31, 2019 and $37,603 million at March 31, 2020 .
[4]	Includes total The Bank of New York Mellon Corporation common shareholders’ equity of $37,941 million at Dec. 31, 2019 and $39,165 million at June 30, 2020 .
[5]	Includes total The Bank of New York Mellon Corporation common shareholders’ equity of $37,603 million at March 31, 2020 and $39,165 million at June 30, 2020 .

Consolidated Statement of Cha_2

Consolidated Statement of Changes in Equity (unaudited) (Parenthetical) - $ / shares	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Stockholders' Equity [Abstract]
Dividends on common stock, cash paid (usd per share)	$ 0.31	$ 0.31	$ 0.28	$ 0.62	$ 0.56

Basis of presentation

Basis of presentation	6 Months Ended
	Jun. 30, 2020
Accounting Policies [Abstract]
Basis of presentation	Basis of presentation In this Quarterly Report on Form 10-Q, references to “our,” “we,” “us,” “BNY Mellon,” the “Company” and similar terms refer to The Bank of New York Mellon Corporation and its consolidated subsidiaries. The term “Parent” refers to The Bank of New York Mellon Corporation but not its subsidiaries. Basis of presentation The accounting and financial reporting policies of BNY Mellon, a global financial services company, conform to U.S. generally accepted accounting principles (“GAAP”) and prevailing industry practices. For information on our significant accounting and reporting policies, see Note 1 in our 2019 Annual Report. The accompanying consolidated financial statements are unaudited. In the opinion of management, all adjustments necessary for a fair presentation of financial position, results of operations and cash flows for the periods presented have been made. These financial statements should be read in conjunction with our 2019 Annual Report. Certain immaterial reclassifications have been made to prior periods to place them on a basis comparable with the current period presentation. Use of estimates

Accounting changes and new acco

Accounting changes and new accounting guidance	6 Months Ended
	Jun. 30, 2020
Accounting Policies [Abstract]
Accounting changes and new accounting guidance	Accounting changes and new accounting guidance The following accounting guidance was adopted in the first quarter of 2020. Accounting Standards Update (“ASU”) 2016-13, Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments In June 2016, the Financial Accounting Standards Board (“FASB”) issued an ASU, Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments . This ASU introduces a new current expected credit losses model, which applies to financial assets subject to credit losses and measured at amortized cost, including held-to-maturity securities and certain off-balance sheet credit exposures. The guidance also changes current practice for the impairment model for available-for-sale debt securities by requiring the use of an allowance to record estimated credit losses and subsequent recoveries. The standard requires a cumulative effect of initial application to be recognized in retained earnings at the date of initial application. In conjunction with adopting the new standard, we developed expected credit loss models and approaches that include consideration of multiple forecast scenarios and other methodologies. On Jan. 1, 2020, we adopted this new accounting guidance on a prospective basis and recognized a $45 million after-tax increase in retained earnings primarily attributable to a reduction to the allowance for credit losses for our commercial lending portfolios. The comparative financial information for prior periods has not been restated. See the Consolidated Balance Sheet and Notes 4 and 5 for the disclosures required by this ASU. The table below presents the reconciliation of the allowance for credit losses (pre-tax). Allowance for credit losses (in millions) Allowance for credit losses – Dec. 31, 2019 $ 216 Impact of adopting ASU 2016-13: Securities 7 Loans (a) (69 ) Other 3 Total impact of adoption of ASU 2016-13 (59 ) Reclassification of credit-related reserves on accounts receivable 4 Allowance for credit losses – Jan. 1, 2020 $ 161 (a) Includes $48 million related to loans and $21 million for lending-related commitments. Significant accounting policies Loans Loans are reported at amortized cost, net of any unearned income and deferred fees and costs. Certain loan origination and upfront commitment fees, as well as certain direct loan origination and commitment costs, are deferred and amortized as a yield adjustment over the lives of the related loans. Loans held for sale are carried at the lower of cost or fair value. Troubled debt restructuring/loan modifications A modified loan is considered a troubled debt restructuring (“TDR”) if the debtor is experiencing financial difficulties and the creditor grants a concession to the debtor that would not otherwise be considered. A TDR may include a transfer of real estate or other assets from the debtor to the creditor, or a modification of the term of the loan. Credit losses related to TDRs are accounted for under an individual evaluation methodology (see “Allowance for credit losses” below). Credit losses for anticipated TDRs are accounted for similarly to TDRs and are identified when there is a reasonable expectation that a TDR will be executed with the borrower and when we expect the modification to affect the timing or amount of payments and/or the payment term. Due to the coronavirus pandemic, there have been two forms of relief provided for classifying loans as TDRs: The Coronavirus Aid, Relief, and Economic Security Act (the “CARES Act”) and the Interagency Guidance (as defined below). Financial institutions may account for eligible loan modifications either under the CARES Act or the Interagency Guidance. The Company has elected to apply both the CARES Act and the Interagency Guidance, as applicable, in providing borrowers with loan modification relief in response to the coronavirus pandemic. The CARES Act, which became law on March 27, 2020, provides that financial institutions may, subject to certain conditions, elect to temporarily suspend the U.S. GAAP requirements with respect to loan modifications related to the coronavirus pandemic that were current as of Dec. 31, 2019 and that would otherwise be identified and treated as TDRs. This TDR relief is applicable to modifications that were made from March 1, 2020 until the earlier of Dec. 31, 2020 or 60 days from the date the national emergency related to the coronavirus pandemic officially ends. Various banking regulators issued guidance in the April 7, 2020 “Interagency Statement on Loan Modifications and Reporting for Financial Institutions Working with Customers Affected by the Coronavirus (revised)” (“Interagency Guidance”) on loan modification treatment pursuant to which financial institutions can apply the U.S. GAAP requirements for loan modifications. In accordance with this guidance, a loan modification is not considered a TDR if the modification is related to the coronavirus pandemic, the borrower had been current when the modification program was implemented, and the modification includes payment deferrals for not more than 6 months. Nonperforming assets Commercial loans are placed on nonaccrual status when principal or interest is past due 90 days or more, or when there is reasonable doubt that interest or principal will be collected. When a first or second lien residential mortgage loan reaches 90 days delinquent, it is subject to an individual evaluation of credit loss and placed on nonaccrual status. When a loan is placed on nonaccrual status, previously accrued and uncollected interest is reversed against current period interest revenue. Interest receipts on nonaccrual loans are recognized as interest revenue or are applied to principal when we believe the ultimate collectability of principal is in doubt. Nonaccrual loans generally are restored to an accrual basis when principal and interest become current and remain current for a specified period. “Allowance for credit losses” below provides additional information regarding the individual evaluation of credit losses for nonperforming loans. Allowance for credit losses The accounting policy for estimating credit losses related to financial assets measured at amortized cost, including loans and lending-related commitments changed beginning in the first quarter of 2020 as a result of the adoption of ASU 2016-13, Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments . This ASU also included targeted amendments with respect to credit losses for available-for-sale debt securities. The accounting policy for determining the allowances has been identified as a “critical accounting estimate” as it requires us to make numerous complex and subjective estimates and assumptions relating to amounts which are judgmental and inherently uncertain. Credit quality is monitored by management and is reflected within the allowance for credit losses. The allowance represents management’s estimate of expected credit losses over the expected contractual life of the financial instruments as of the balance sheet date. The allowance methodology is designed to provide procedural discipline in assessing the appropriateness of the allowance. A quantitative methodology and qualitative framework is used to estimate the allowance for credit losses. The qualitative framework is described in further detail within “Allowance for credit losses - Other” below. The quantitative component of our estimate uses models and methodologies that categorize financial assets based on product type, collateral type, and other credit trends and risk characteristics, including relevant information about past events, current conditions and reasonable and supportable forecasts of future economic conditions that affect the collectability of the recorded amounts. The allowance may be determined using various methods, including discounted cash flow methods, loss-rate methods, probability of default methods or other methods that we determine to be appropriate. We estimate our expected credit losses using the probability of default method for the majority of our financial assets. We measure expected credit losses of financial assets on a collective (pool) basis when similar risk characteristics exist. For a financial asset that does not share risk characteristics with other assets, expected credit losses are measured based on an individual evaluation method. In our estimate, with the exception of our small home equity line of credit portfolio, available-for-sale debt securities, and individually evaluated financial assets, we utilize a multi-scenario macroeconomic forecast which includes a weighting of baseline, stronger near-term growth and moderate recession scenarios. This approach allows us to develop our estimate using a wide span of economic input variables. Our baseline scenario reflects a view on likely performance of each global region and the other two scenarios are designed relative to the baseline scenario. The scenarios include both a reasonable and supportable forecast period as well as a reversion period. The reasonable and supportable forecast is typically over a two to three-year horizon, followed by a reversion period in which the economic data reverts to long-term historical experience. In general, the forecasts across the alternative economic scenarios tend to revert toward the long-term trends after the forecast period, which is the period in which the confidence interval is considered reasonable and supportable. The speed at which the scenario specific forecasts revert is based on observed historical patterns of mean reversion that are reflected in our model parameter estimates. Certain macroeconomic variables such as unemployment or home prices take longer to revert after a contraction, though specific recovery times are scenario-specific. Reversion will usually take longer the further away the scenario specific forecast is from the historical mean. On a quarterly basis, within a developed governance structure, we update these scenarios for current economic conditions and may adjust the scenario weighting based on our economic outlook. Allowance for credit losses - Loans and lending-related commitments The allowance for credit losses on loans is presented as a valuation allowance to loans, and the allowance for credit losses on lending-related commitments is recorded in other liabilities. The components of the allowance for credit losses on loans and lending-related commitments consist of the following three elements: • a pooled allowance component for higher risk-rated and pass-rated commercial and institutional credits; • a pooled allowance component for residential mortgage loans; and • an asset-specific allowance component involving individually evaluated credits of $1 million or greater. The first element, a pooled allowance component for higher risk-rated and pass-rated commercial and institutional credits, is based on our expected credit loss model. Individual credit analyses are performed on such loans before being assigned a credit rating. All borrowers are collectively evaluated based on their credit rating. The loss expected in each loan incorporates the borrower’s credit rating, facility rating and maturity. The loss given default, derived from the facility rating, incorporates a recovery expectation, and for unfunded lending exposures, an estimate of the use of the facility at default (usage given default). The borrower’s probability of default is derived from the associated credit rating. For each of the different parameters, specific credit models are developed for each segment of our portfolio, including commercial loans and lease financing, commercial real estate, financial institutions, and other. Segmentation is established based on risk characteristics of the loans and how risk is monitored. We use both internal and external data in the development of these parameters. In estimating the term of the exposures and resulting effect on the measurement of expected credit loss, we consider the impact of potential prepayments as well as the effect of borrower extension options. Borrower ratings are reviewed at least annually and are periodically mapped to third-party databases, including rating agency and default and recovery databases, to ensure ongoing consistency and validity. Higher risk-rated loans and lending-related commitments are reviewed quarterly. The second element, a pooled allowance component for residential mortgage loans, is determined by first segregating our mortgage pools into two categories: (i) our wealth management mortgages and (ii) our legacy mortgage portfolio disclosed as other residential mortgages. We then apply models to each portfolio to predict prepayments, default rates and loss severity. We consider historical loss experience and use a loan-level, multi-period default model which further segments each portfolio by product type including first lien fixed rate mortgages, first lien adjustable rate mortgages, second lien mortgages, and interest-only mortgages. We calculate the mortgage loss up to loan contractual maturity and embed a reasonable and supportable forecast and macroeconomic variable inputs which are described above. For home equity lines of credit, probability of default and loss given default are based on external data from third-party databases due to the small size of the portfolio and limited internal data. Our legacy mortgage portfolio and home equity line of credit portfolios represent small sub-segments of our mortgage loans. The third element, individually evaluated credits, is based on individual analysis of loans of $1 million and greater which no longer share the risk characteristics with other loans. Factors we consider in measuring the extent of expected credit loss include the payment status, collateral value, the borrower’s financial condition, guarantor support, the probability of collecting scheduled principal and interest payments when due, anticipated modifications of payment structure or term for troubled borrowers, and recoveries if they can be reasonably estimated. We measure the expected credit loss as the difference between the amortized cost basis in the loan and the present value of the expected future cash flows from the borrower which is generally discounted at the loan’s effective interest rate, or the fair value of the collateral, if the loan is collateral dependent. We generally consider nonperforming loans as well as loans that have been or are anticipated to be modified under a troubled debt restructuring for individual evaluation given the risk characteristics of such loans. Allowance for credit losses - Securities - Debt When estimating expected credit losses, we segment our available-for-sale and held-to-maturity debt securities portfolios by major asset class. This is influenced by whether the security is structured or non-structured (i.e., direct obligation), as well as the issuer type. Debt securities are classified as available-for-sale securities when we intend to hold the securities for an indefinite period of time or when the securities may be used for tactical asset/liability management purposes and may be sold from time to time to effectively manage interest rate exposure, prepayment risk and liquidity needs. Available-for-sale securities are measured at fair value. The difference between fair value and amortized cost represents the unrealized gains or losses on assets classified as available-for-sale, and is recorded net of tax as an addition to, or deduction from, other comprehensive income, unless we determine that this difference or a portion thereof represents an expected credit loss. If we determine that a credit loss exists, the amount is recognized as an allowance for credit losses in securities - available-for sale, with a corresponding adjustment to the provision for credit losses. We evaluate credit losses at the individual security level and do not recognize credit losses if the fair value exceeds amortized cost, and if we determine that a credit loss exists, we limit the recognition of the loss to the difference between fair value and amortized cost. In our determination of whether an expected credit loss exists, we routinely conduct periodic reviews and examine various quantitative and qualitative factors that are unique to each portfolio, including the severity of the unrealized loss position, agency rating, credit enhancement, cash flow deterioration and other factors. The measurement of an expected credit loss is then based on the best estimate of the present value of cash flows to be collected from the debt security. Generally, cash flows are discounted at the effective interest rate implicit in the debt security. Changes to the present value of cash flows due to the passage of time are recognized within the allowance for credit losses. We estimate expected credit losses for held-to-maturity debt securities using a similar methodology as described in the first allowance element within “Allowance for credit losses - Loans and lending-related commitments” above. The allowance for credit losses on held-to-maturity debt securities are recorded in securities - held-to-maturity. The components of the credit loss calculation for each major portfolio or asset class include a probability of default and loss given default and their values depend on the forecast behavior of variables in the macroeconomic environment. For structured debt securities, we estimated expected credit losses at the individual security level and use a cash flow model to project principal losses. Generally, cash flows are discounted at the effective interest rate implicit in the debt security. The difference is reflected in the allowance for credit losses, and changes to the present value of cash flows due to the passage of time are recognized within the allowance for credit losses. We currently do not require an estimate of expected credit losses to be measured and recorded for U.S. Treasury securities, agency debt securities, as well as other debt securities that meet certain conditions that are based on a combination of factors such as guarantees, credit ratings, and other credit quality factors. These assets are monitored within our established governance structure on a recurring basis to determine if any changes are warranted. Allowance for credit losses – Other financial instruments We also estimate expected credit losses associated with margin loans, reverse repurchase agreements, security lending indemnifications, and deposits with third-party financial institutions using a similar methodology as described in the first allowance element within “Allowance for credit losses - Loans and lending-related commitments” above. The allowance for credit losses on reverse repurchase agreements are recorded in federal funds sold and securities purchased under resale agreements; the allowance for credit losses on securities lending indemnifications is recorded in other liabilities and the allowance for credit losses on deposits with third party financial institutions is recorded in cash and due from banks or interest-bearing deposits with banks. Our reverse repurchase agreements are short term and subject to continuous overcollateralization by our counterparties and timely collateral replenishment, when necessary. As a result, we estimate the expected credit loss related to the uncollateralized portion of the asset at the balance sheet date, if any, and when there is a reasonable expectation that the counterparty will not replenish the collateral in compliance with the terms of the repurchase agreement. This method is also applied to margin lending arrangements and securities lending indemnifications. Allowance for credit losses - Other We do not apply our credit loss measurement methodologies to accrued interest receivable balances related to our loan, debt securities and deposits with third party financial institutions assets given our nonaccrual policy that requires charge-off of interest receivable when deemed uncollectible. Accrued interest receivable related to these instruments is presented in total with other interest-bearing instruments in the consolidated balance sheet. Accrued interest receivable related to each major loan class is disclosed within our credit quality disclosure in Note 5. Our policy for credit losses related to purchased financial assets requires an evaluation to be performed prior to the effective purchase date to determine if more than an insignificant decline in credit quality has occurred during the period between the origination and purchase date, or in the case of debt securities, the period between the issuance and purchase date. If we purchase a financial asset with more than insignificant deterioration in credit quality, the measurement of expected credit loss is performed using the methodologies described above, and the credit loss is recorded as an allowance for credit losses on the purchase date. Subsequent to purchase, changes (favorable and unfavorable) in expected cash flows are recognized immediately in net income by adjusting the allowance. We evaluate various factors in the determination of whether a more than an insignificant decline in credit quality has occurred and these factors vary depending upon the type of asset purchased. Such factors include changes in risk rating and/or agency rating, collateral deterioration, payment status, purchase price, credit spreads, and other factors. We did not purchase any such assets during the first six months of 2020 and did not own such assets as of June 30, 2020. We apply a separate credit loss methodology to accounts receivables to estimate the expected credit losses associated with these short-term receivables which historically have not resulted in significant credit losses. The allowance for credit losses on accounts receivable is reflected in other assets. The qualitative component of our estimate for the allowance for credit losses is intended to capture expected losses that may not have been fully captured in the quantitative component. Through an established governance structure, management determines the qualitative allowance each period based on an evaluation of various internal and environmental factors which include: scenario weighting and sensitivity risk, credit concentration risk, economic conditions and other considerations. We may also make adjustments for idiosyncratic risks. Once determined in the aggregate, our qualitative allowance is then allocated to each of our financial instrument portfolios except for debt securities and those instruments carried in other assets based on the respective instruments’ quantitative allowance balances. The allocation of this additional allowance for credit losses is inherently judgmental, and the entire allowance for credit losses is available to absorb credit losses regardless of the nature of the loss.

Acquisitions and dispositions

Acquisitions and dispositions	6 Months Ended
	Jun. 30, 2020
Business Combinations [Abstract]
Acquisitions and dispositions	Acquisitions and dispositions We sometimes structure our acquisitions with both an initial payment and later contingent payments tied to post-closing revenue or income growth. Contingent payments totaled $3 million in the second quarter of 2020 and the first six months of 2020 . A t June 30, 2020 , we are potentially obligated to pay additional consideration which, using reasonable assumptions, could range from $5 million to $10 million over the next two years , but could be higher as certain of the arrangements do not contain a contractual maximum. Transaction in 2019 On Nov. 8, 2019, BNY Mellon, along with the other holders of Promontory Interfinancial Network, LLC (“PIN”), completed the sale of their interests in PIN. BNY Mellon recorded an after-tax gain of $622 million on the sale of this equity investment.

Securities

Securities	6 Months Ended
	Jun. 30, 2020
Securities [Abstract]
Securities	Securities On Jan. 1, 2020, we adopted ASU 2016-13, Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments on a prospective basis. See Note 2 for the significant accounting policy related to securities. The following tables present the amortized cost, the gross unrealized gains and losses and the fair value of securities at June 30, 2020 and Dec. 31, 2019 . Securities at June 30, 2020 Gross unrealized Fair value Amortized cost (in millions) Gains Losses Available-for-sale: Agency RMBS $ 26,005 $ 516 $ 84 $ 26,437 U.S. Treasury 23,537 1,600 — 25,137 Sovereign debt/sovereign guaranteed 15,724 165 2 15,887 Agency commercial mortgage-backed securities (“MBS”) 9,357 633 2 9,988 Foreign covered bonds 5,469 53 3 5,519 Supranational 5,385 64 1 5,448 Collateralized loan obligations (“CLOs”) 4,526 4 98 4,432 Foreign government agencies 3,536 42 — 3,578 U.S. government agencies 2,635 173 2 2,806 Other asset-backed securities (“ABS”) 2,724 29 10 2,743 Non-agency commercial MBS 2,517 129 16 2,630 Commercial paper/certificates of deposit (“CDs”) 1,849 4 — 1,853 Non-agency RMBS (a) 1,464 149 15 1,598 State and political subdivisions 1,150 31 2 1,179 Corporate bonds 789 42 — 831 Other debt securities 1 — — 1 Total securities available-for-sale (b)(c) $ 106,668 $ 3,634 $ 235 $ 110,067 Held-to-maturity: Agency RMBS $ 32,869 $ 1,108 $ 9 $ 33,968 U.S. Treasury 4,687 114 1 4,800 U.S. government agencies 2,349 6 3 2,352 Agency commercial MBS 1,982 108 — 2,090 Commercial paper/CDs 1,537 2 — 1,539 Sovereign debt/sovereign guaranteed 974 41 — 1,015 Foreign covered bonds 79 — — 79 Non-agency RMBS 73 3 2 74 Supranational 49 — — 49 State and political subdivisions 16 1 — 17 Total securities held-to-maturity $ 44,615 $ 1,383 $ 15 $ 45,983 Total securities $ 151,283 $ 5,017 $ 250 $ 156,050 (a) Includes $538 million that was included in the former Grantor Trust. (b) In the first quarter of 2020, we adopted new accounting guidance included in ASU 2016-13, Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments, on a prospective basis. The allowance for credit loss on available-for-sale securities of $12 million primarily relates to CLOs. See Note 2 for additional information. (c) Includes gross unrealized gains of $28 million and gross unrealized losses of $55 million recorded in accumulated other comprehensive income related to securities that were transferred from available-for-sale to held-to-maturity. The unrealized gains and losses are primarily related to Agency RMBS and will be amortized into net interest revenue over the contractual lives of the securities. Securities at Dec. 31, 2019 Gross unrealized Amortized cost Fair value (in millions) Gains Losses Available-for-sale: Agency RMBS $ 27,022 $ 164 $ 143 $ 27,043 U.S. Treasury 14,979 472 20 15,431 Sovereign debt/sovereign guaranteed 12,548 109 11 12,646 Agency commercial MBS 9,231 203 17 9,417 Foreign covered bonds 4,189 15 7 4,197 CLOs 4,078 1 16 4,063 Supranational 3,697 18 6 3,709 Foreign government agencies 2,638 7 2 2,643 Non-agency commercial MBS 2,134 46 2 2,178 Other ABS 2,141 7 5 2,143 U.S. government agencies 1,890 61 2 1,949 Non-agency RMBS (a) 1,038 202 7 1,233 State and political subdivisions 1,017 27 — 1,044 Corporate bonds 832 21 — 853 Other debt securities 1 — — 1 Total securities available-for-sale (b) $ 87,435 $ 1,353 $ 238 $ 88,550 Held-to-maturity: Agency RMBS $ 27,357 $ 292 $ 46 $ 27,603 U.S. Treasury 3,818 28 3 3,843 Agency commercial MBS 1,326 21 3 1,344 U.S. government agencies 1,023 1 2 1,022 Sovereign debt/sovereign guaranteed 756 31 — 787 Non-agency RMBS 80 4 1 83 Foreign covered bonds 79 — — 79 Supranational 27 — — 27 State and political subdivisions 17 — — 17 Total securities held-to-maturity $ 34,483 $ 377 $ 55 $ 34,805 Total securities $ 121,918 $ 1,730 $ 293 $ 123,355 (a) Includes $640 million that was included in the former Grantor Trust. (b) Includes gross unrealized gains of $32 million and gross unrealized losses of $65 million recorded in accumulated other comprehensive income related to securities that were transferred from available-for-sale to held-to-maturity. The unrealized gains and losses are primarily related to Agency RMBS and will be amortized into net interest revenue over the contractual lives of the securities. The following table presents the realized gains, losses and impairments, on a gross basis. Net securities gains (losses) (in millions) 2Q20 1Q20 2Q19 YTD20 YTD19 Realized gross gains $ 16 $ 12 $ 12 $ 28 $ 17 Realized gross losses (7 ) (3 ) (5 ) (10 ) (9 ) Recognized gross impairments — — — — — Total net securities gains $ 9 $ 9 $ 7 $ 18 $ 8 The following table presents pre-tax net securities gains by type. Net securities gains (in millions) 2Q20 1Q20 2Q19 YTD20 YTD19 Supranational $ 6 $ — $ — $ 6 $ — U.S. Treasury 1 5 3 6 4 Other 2 4 4 6 4 Total net securities gains $ 9 $ 9 $ 7 $ 18 $ 8 Allowance for credit losses - Securities In the first quarter of 2020, we adopted new accounting guidance included in ASU 2016-13, Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments , on a prospective basis. The allowance for credit losses related to securities was $7 million on Jan. 1, 2020 and $12 million at June 30, 2020 . The increase reflects additional credit deterioration in the available-for-sale CLO portfolio. For additional information about the review of securities under previous other-than-temporary impairment guidance, refer to Notes 1 and 4, both Notes to Consolidated Financial Statements, in our 2019 Annual Report. Credit quality indicators - Securities At June 30, 2020 , the gross unrealized losses on the securities portfolio were primarily attributable to an increase in credit spreads from the date of purchase, and for certain securities that were transferred from available-for-sale to held-to-maturity, an increase in interest rates through the date they were transferred. Specifically, $55 million of the unrealized losses at June 30, 2020 and $65 million at Dec. 31, 2019 reflected in the available-for-sale sections of the tables below relate to certain securities (primarily Agency RMBS) that were transferred in prior periods from available-for-sale to held-to-maturity. The unrealized losses will be amortized into net interest revenue over the contractual lives of the securities. The transfer created a new cost basis for the securities. As a result, if these securities have experienced unrealized losses since the date of transfer, the corresponding fair value and unrealized losses would be reflected in the held-to-maturity sections of the following tables. We do not intend to sell these securities, and it is not more likely than not that we will have to sell these securities. The following table shows the aggregate fair value of available-for-sale securities with a continuous unrealized loss position for less than 12 months and those that have been in a continuous unrealized loss position for 12 months or more without an allowance for credit losses. Available-for-sale securities in an unrealized loss position at June 30, 2020 (a) Less than 12 months 12 months or more Total Fair value Unrealized losses Fair value Unrealized losses Fair value Unrealized losses (in millions) Agency RMBS $ 2,809 $ 5 $ 6,030 $ 79 $ 8,839 $ 84 Sovereign debt/sovereign guaranteed 1,952 2 110 — 2,062 2 Agency commercial MBS 266 — 350 2 616 2 Foreign covered bonds 1,003 2 281 1 1,284 3 Supranational 931 1 233 — 1,164 1 CLOs 3,522 68 575 19 4,097 87 U.S. government agencies 79 2 — — 79 2 Other ABS 760 6 203 4 963 10 Non-agency commercial MBS 476 15 39 1 515 16 Non-agency RMBS (b) 508 7 96 7 604 14 State and political subdivisions 79 2 2 — 81 2 Total securities available-for-sale (c) $ 12,385 $ 110 $ 7,919 $ 113 $ 20,304 $ 223 (a) Includes $530 million of securities with an unrealized loss of greater than $1 million. (b) Includes $42 million of securities with an unrealized loss of $1 million for less than 12 months and $1 million of securities with an unrealized loss of less than $1 million for 12 months or more that were included in the former Grantor Trust. (c) Includes gross unrealized losses of $55 million for 12 months or more recorded in accumulated other comprehensive income related to securities that were transferred from available-for-sale to held-to-maturity. The unrealized losses are primarily related to Agency RMBS and will be amortized into net interest revenue over the contractual lives of the securities. There were no gross unrealized losses for less than 12 months. The following table presents the temporarily impaired securities under the disclosure guidance that existed prior to the adoption of ASU 2016-13 and shows the aggregate fair value of available-for-sale securities with a continuous unrealized loss position for less than 12 months and those that have been in a continuous unrealized loss position for 12 months or more. Temporarily impaired securities at Dec. 31, 2019 Less than 12 months 12 months or more Total (in millions) Fair value Unrealized losses Fair value Unrealized losses Fair value Unrealized losses Available-for-sale: Agency RMBS $ 8,373 $ 33 $ 5,912 $ 110 $ 14,285 $ 143 U.S. Treasury 1,976 16 766 4 2,742 20 Sovereign debt/sovereign guaranteed 4,045 10 225 1 4,270 11 Agency commercial MBS 1,960 12 775 5 2,735 17 Foreign covered bonds 1,009 4 690 3 1,699 7 CLOs 1,066 2 1,499 14 2,565 16 Supranational 1,336 6 360 — 1,696 6 Foreign government agencies 1,706 2 47 — 1,753 2 Non-agency commercial MBS 525 2 45 — 570 2 Other ABS 456 3 305 2 761 5 U.S. government agencies 377 2 — — 377 2 Non-agency RMBS (a) 101 — 113 7 214 7 State and political subdivisions — — 16 — 16 — Corporate bonds 82 — 21 — 103 — Total securities available-for-sale (b) $ 23,012 $ 92 $ 10,774 $ 146 $ 33,786 $ 238 (a) Includes $2 million of securities with an unrealized loss of less than $1 million for less than 12 months and $2 million of securities with an unrealized loss of less than $1 million for 12 months or more that were included in the former Grantor Trust. (b) Includes gross unrealized losses of $65 million for 12 months or more recorded in accumulated other comprehensive income related to securities that were transferred from available-for-sale to held-to-maturity. The unrealized losses are primarily related to Agency RMBS and will be amortized into net interest revenue over the contractual lives of the securities. There were no gross unrealized losses for less than 12 months. The following table shows the credit quality of the held-to-maturity securities. We have included certain credit ratings information because the information can indicate the degree of credit risk to which we are exposed. Significant changes in ratings classifications could indicate increased credit risk for us and could be accompanied by a reduction in the fair value of our securities portfolio. Held-to-maturity securities portfolio at June 30, 2020 (a) Ratings (b) Net unrealized gain BB+ A1+/A2/SP-1+ (dollars in millions) Amortized AAA/ A+/ BBB+/ Not Agency RMBS $ 32,869 $ 1,099 100 % — % — % — % — % — % U.S. Treasury 4,687 113 100 — — — — — U.S. government agencies 2,349 3 100 — — — — — Agency commercial MBS 1,982 108 100 — — — — — Commercial paper/CDs 1,537 2 — — — — 100 — Sovereign debt/sovereign guaranteed (c) 974 41 100 — — — — — Foreign covered bonds (d) 79 — 100 — — — — — Non-agency RMBS 73 1 42 43 2 12 — 1 Supranational 49 — 100 — — — — — State and political subdivisions 16 1 6 2 6 — — 86 Total held-to-maturity securities $ 44,615 $ 1,368 96 % 1 % — % — % 3 % — % (a) In the first quarter of 2020, we adopted new accounting guidance included in ASU 2016-13, Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments, on a prospective basis. See Note 2 for additional information. (b) Represents ratings by Standard & Poor’s (“S&P”) or the equivalent. (c) Primarily consists of exposure to France, UK and Germany. (d) Primarily consists of exposure to Canada. Maturity distribution The following table shows the maturity distribution by carrying amount and yield (on a tax equivalent basis) of our securities portfolio. Maturity distribution and yields on securities at June 30, 2020 U.S. Treasury U.S. government agencies State and political subdivisions Other bonds, notes and debentures Mortgage/ asset-backed (dollars in millions) Amount Yield (a) Amount Yield (a) Amount Yield (a) Amount Yield (a) Amount Yield (a) Total Securities available-for-sale: One year or less $ 5,348 0.50 % $ 25 2.55 % $ 178 2.92 % $ 13,826 0.71 % $ — — % $ 19,377 Over 1 through 5 years 10,350 1.52 1,038 1.22 646 3.29 16,098 0.68 — — 28,132 Over 5 through 10 years 6,171 1.67 1,623 2.56 107 2.42 2,838 0.53 — — 10,739 Over 10 years 3,268 3.11 120 2.06 248 2.37 355 0.97 — — 3,991 Mortgage-backed securities — — — — — — — — 40,653 2.24 40,653 Asset-backed securities — — — — — — — — 7,175 2.18 7,175 Total $ 25,137 1.54 % $ 2,806 2.04 % $ 1,179 2.96 % $ 33,117 0.69 % $ 47,828 2.23 % $ 110,067 Securities held-to-maturity: One year or less $ 1,899 0.41 % $ — — % $ — — % $ 1,646 1.21 % $ — — % $ 3,545 Over 1 through 5 years 2,788 1.91 1,696 1.12 3 5.66 919 0.66 — — 5,406 Over 5 through 10 years — — 212 1.98 — — 31 0.92 — — 243 Over 10 years — — 441 2.33 13 4.76 43 0.35 — — 497 Mortgage-backed securities — — — — — — — — 34,924 2.87 34,924 Total $ 4,687 1.32 % $ 2,349 1.42 % $ 16 4.91 % $ 2,639 1.00 % $ 34,924 2.87 % $ 44,615 (a) Yields are based upon the amortized cost of securities. Pledged assets At June 30, 2020 , BNY Mellon had pledged assets of $139 billion , including $109 billion pledged as collateral for potential borrowings at the Federal Reserve Discount Window and $6 billion pledged as collateral for borrowing at the Federal Home Loan Bank. The components of the assets pledged at June 30, 2020 included $121 billion of securities, $12 billion of loans, $5 billion of trading assets and $1 billion of interest-bearing deposits with banks. If there has been no borrowing at the Federal Reserve Discount Window, the Federal Reserve generally allows banks to freely move assets in and out of their pledged assets account to sell or repledge the assets for other purposes. BNY Mellon regularly moves assets in and out of its pledged assets account at the Federal Reserve. At Dec. 31, 2019 , BNY Mellon had pledged assets of $118 billion , including $80 billion pledged as collateral for potential borrowing at the Federal Reserve Discount Window and $6 billion pledged as collateral for borrowing at the Federal Home Loan Bank. The components of the assets pledged at Dec. 31, 2019 included $98 billion of securities, $13 billion of loans, $7 billion of trading assets and less than $1 billion of interest-bearing deposits with banks. At June 30, 2020 and Dec. 31, 2019 , pledged assets included $21 billion and $29 billion , respectively, for which the recipients were permitted to sell or repledge the assets delivered. At June 30, 2020 , we pledged commercial paper and CDs totaling $1.5 billion as collateral to the Federal Reserve Bank of Boston to secure non-recourse borrowings under the Federal Reserve’s Money Market Mutual Fund Liquidity Facility (“MMLF”) program. We also obtain securities as collateral, including receipts under resale agreements, securities borrowed, derivative contracts and custody agreements, on terms which permit us to sell or repledge the securities to others. At June 30, 2020 and Dec. 31, 2019 , the market value of the securities received that can be sold or repledged was $107 billion and $153 billion , respectively. We routinely sell or repledge these securities through delivery to third parties. As of June 30, 2020 and Dec. 31, 2019 , the market value of securities collateral sold or repledged was $72 billion and $107 billion , respectively. Restricted cash and securities Cash and securities may be segregated under federal and other regulations or requirements. At both June 30, 2020 and Dec. 31, 2019 , cash segregated under federal and other regulations or requirements was $2 billion . Restricted cash is included in interest-bearing deposits with banks on the consolidated balance sheet. Securities segregated under federal and other regulations or requirements were $6 billion at June 30, 2020 and $1 billion at Dec. 31, 2019

Loans and asset quality

Loans and asset quality	6 Months Ended
	Jun. 30, 2020
Receivables [Abstract]
Loans and asset quality	Loans and asset quality Loans The table below provides the details of our loan portfolio. Loans June 30, 2020 Dec. 31, 2019 (in millions) Domestic: Commercial $ 2,192 $ 1,442 Commercial real estate 6,217 5,575 Financial institutions 3,804 4,852 Lease financings 439 537 Wealth management loans and mortgages 15,753 16,050 Other residential mortgages 450 494 Overdrafts 1,073 524 Other 1,489 1,167 Margin loans 11,476 11,907 Total domestic 42,893 42,548 Foreign: Commercial 253 347 Commercial real estate 11 7 Financial institutions 6,949 7,626 Lease financings 589 576 Wealth management loans and mortgages 122 140 Other (primarily overdrafts) 3,147 2,230 Margin loans 1,433 1,479 Total foreign 12,504 12,405 Total loans (a) $ 55,397 $ 54,953 (a) Net of unearned income of $292 million at June 30, 2020 and $313 million at Dec. 31, 2019 primarily related to domestic and foreign lease financings. Our loan portfolio consists of three portfolio segments: commercial, lease financings and mortgages. We manage our portfolio at the class level, which consists of six classes of financing receivables: commercial, commercial real estate, financial institutions, lease financings, wealth management loans and mortgages, and other residential mortgages. The following tables are presented for each class of financing receivables and provide additional information about our credit risks. Allowance for credit losses On Jan. 1, 2020, we adopted ASU 2016-13, Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments, on a prospective basis. See Note 2 for the significant accounting policy related to allowance for credit losses on loans and lending-related commitments. Activity in the allowance for credit losses on loans and lending-related commitments is presented below. Allowance for credit losses activity for the quarter ended June 30, 2020 Wealth management loans and mortgages Other residential mortgages (in millions) Commercial Commercial real estate Financial institutions Lease financings Total Beginning balance $ 26 $ 208 $ 18 $ 13 $ 9 $ 14 $ 288 Charge-offs — — — — — — — Recoveries — — — — — 3 3 Net recoveries — — — — — 3 3 Provision 14 164 (2 ) (10 ) 2 (5 ) 163 Ending balance (a) $ 40 $ 372 $ 16 $ 3 $ 11 $ 12 $ 454 Allowance for: Loan losses $ 23 $ 244 $ 11 $ 3 $ 9 $ 12 $ 302 Lending-related commitments 17 128 5 — 2 — 152 Individually evaluated for impairment: Loan balance $ — $ — $ — $ — $ 18 (b) $ — $ 18 Allowance for loan losses — — — — — — — (a) Includes $11 million of allowance for credit losses related to foreign loans, primarily financial institutions. (b) Includes collateral dependent loans of $18 million with $26 million of collateral at fair value. Allowance for credit losses activity for the quarter ended March 31, 2020 Wealth management loans and mortgages Other residential mortgages (in millions) Commercial Commercial real estate Financial institutions Lease financings Foreign (a) Total Balance at Dec. 31, 2019 $ 60 $ 76 $ 20 $ 3 $ 20 $ 13 $ 24 $ 216 Impact of adopting ASU 2016-13 (43 ) 14 (6 ) — (12 ) 2 (24 ) (69 ) Balance at Jan. 1, 2020 17 90 14 3 8 15 — 147 Charge-offs — — — — — — — — Recoveries — — — — — — — — Net (charge-offs) recoveries — — — — — — — — Provision 9 118 4 10 1 (1 ) — 141 Ending balance (b) $ 26 $ 208 $ 18 $ 13 $ 9 $ 14 $ — $ 288 Allowance for: Loan losses $ 13 $ 83 $ 10 $ 13 $ 7 $ 14 $ — $ 140 Lending-related commitments 13 125 8 — 2 — — 148 Individually evaluated for impairment: Loan balance $ — $ — $ — $ — $ 18 (c) $ — $ — $ 18 Allowance for loan losses — — — — — — — — (a) The allowance related to foreign exposure has been reclassified to financial institutions ( $10 million ), commercial ( $10 million ) and lease financings ( $4 million ). (b) Includes $12 million of allowance for credit losses related to foreign loans, primarily financial institutions. (c) Includes collateral dependent loans of $18 million with $26 million of collateral at fair value. Allowance for credit losses activity for the quarter ended June 30, 2019 Wealth management loans and mortgages Other residential mortgages All other Foreign Total (in millions) Commercial Commercial real estate Financial institutions Lease financings Beginning balance $ 82 $ 74 $ 23 $ 4 $ 21 $ 15 $ — $ 29 $ 248 Charge-offs — — — — (1 ) — — — (1 ) Recoveries — — — — — 2 — — 2 Net (charge-offs) recoveries — — — — (1 ) 2 — — 1 Provision (5 ) (2 ) (2 ) — — (3 ) — 4 (8 ) Ending balance $ 77 $ 72 $ 21 $ 4 $ 20 $ 14 $ — $ 33 $ 241 Allowance for: Loan losses $ 23 $ 57 $ 8 $ 4 $ 17 $ 14 $ — $ 23 $ 146 Lending-related commitments 54 15 13 — 3 — — 10 95 Individually evaluated for impairment: Loan balance $ 96 $ — $ — $ — $ 16 $ — $ — $ — $ 112 Allowance for loan losses 10 — — — — — — — 10 Collectively evaluated for impairment: Loan balance $ 1,356 $ 5,192 $ 4,574 $ 662 $ 15,563 $ 549 $ 12,849 (a) $ 11,539 $ 52,284 Allowance for loan losses 13 57 8 4 17 14 — 23 136 (a) Includes $1,575 million of domestic overdrafts, $10,152 million of margin loans and $1,122 million of other loans at June 30, 2019 . Allowance for credit losses activity for the six months ended June 30, 2020 Wealth management loans and mortgages Other Foreign Total (in millions) Commercial Commercial Financial Lease Balance at Dec. 31, 2019 $ 60 $ 76 $ 20 $ 3 $ 20 $ 13 $ 24 $ 216 Impact of adopting ASU 2016-13 (43 ) 14 (6 ) — (12 ) 2 (24 ) (69 ) Balance at Jan. 1, 2020 17 90 14 3 8 15 — 147 Charge-offs — — — — — — — — Recoveries — — — — — 3 — 3 Net recoveries — — — — — 3 — 3 Provision 23 282 2 — 3 (6 ) — 304 Ending balance $ 40 $ 372 $ 16 $ 3 $ 11 $ 12 $ — $ 454 Allowance for credit losses activity for the six months ended June 30, 2019 Wealth management loans and mortgages Other All Foreign Total (in millions) Commercial Commercial Financial Lease Beginning balance $ 81 $ 75 $ 22 $ 5 $ 21 $ 16 $ — $ 32 $ 252 Charge-offs (11 ) — — — (1 ) — — — (12 ) Recoveries — — — — — 2 — — 2 Net (charge-offs) recoveries (11 ) — — — (1 ) 2 — — (10 ) Provision 7 (3 ) (1 ) (1 ) — (4 ) — 1 (1 ) Ending balance $ 77 $ 72 $ 21 $ 4 $ 20 $ 14 $ — $ 33 $ 241 Nonperforming assets The table below presents our nonperforming assets. Nonperforming assets June 30, 2020 Dec. 31, 2019 Recorded investment With an allowance Without an allowance (in millions) Total Nonperforming loans: Other residential mortgages $ 58 $ — $ 58 $ 62 Wealth management loans and mortgages 10 18 28 24 Total nonperforming loans 68 18 86 86 Other assets owned — 2 2 3 Total nonperforming assets $ 68 $ 20 $ 88 $ 89 At June 30, 2020 , undrawn commitments to borrowers whose loans were classified as nonaccrual or reduced rate were not material. Past due loans The table below presents our past due loans. Past due loans and still accruing interest June 30, 2020 Dec. 31, 2019 Days past due Total past due Days past due Total past due (in millions) 30-59 60-89 ≥90 30-59 60-89 ≥90 Wealth management loans and mortgages $ 31 $ 6 $ — $ 37 $ 22 $ 5 $ — $ 27 Other residential mortgages 5 1 — 6 8 3 — 11 Financial institutions — — — — 1 30 — 31 Commercial real estate — — — — 6 12 — 18 Total past due loans $ 36 $ 7 $ — $ 43 $ 37 $ 50 $ — $ 87 Loan modifications Due to the coronavirus pandemic, there have been two forms of relief provided for classifying loans as TDRs: The Coronavirus Aid, Relief, and Economic Security Act (the “CARES Act”) and the Interagency Guidance. See Note 2 for additional details on the CARES Act and Interagency Guidance. Financial institutions may account for eligible loan modifications either under the CARES Act or the Interagency Guidance. The Company has elected to apply both the CARES Act and the Interagency Guidance, as applicable, in providing borrowers with loan modification relief in response to the coronavirus pandemic. We modified loans totaling $282 million in the second quarter of 2020 by providing short-term loan payment forbearances or modified principal and/or interest payments. We did not identify these modifications as troubled debt restructurings (“TDRs”). These loans were primarily residential mortgage and commercial real estate loans. During the loan modification period, these loans are not reported as nonperforming or past due. We modified other residential mortgage loans totaling $1 million in both the second quarter of 2019 and first quarter of 2020 Credit quality indicators Our credit strategy is to focus on investment-grade clients that are active users of our non-credit services. Each customer is assigned an internal credit rating, which is mapped to an external rating agency grade equivalent, if possible, based upon a number of dimensions, which are continually evaluated and may change over time. The table below provides information about the credit profile of the loan portfolio by the period of origination. Credit profile of the loan portfolio June 30, 2020 Revolving loans Originated, at amortized cost Amortized cost Converted to term loans - Amortized cost Accrued (in millions) YTD20 2019 2018 2017 2016 Prior to 2016 Total (a) Commercial: Investment grade $ 107 $ 213 $ 106 $ 554 $ 57 $ — $ 1,054 $ — $ 2,091 Non-investment grade 40 69 12 — 3 — 230 — 354 Total commercial 147 282 118 554 60 — 1,284 — 2,445 $ 3 Commercial real estate: Investment grade 500 1,212 806 550 431 422 292 — 4,213 Non-investment grade 77 410 459 179 421 212 228 29 2,015 Total commercial real estate 577 1,622 1,265 729 852 634 520 29 6,228 8 Financial institutions: Investment grade 27 247 133 125 14 181 7,934 — 8,661 Non-investment grade 53 29 — — — — 2,010 — 2,092 Total financial institutions 80 276 133 125 14 181 9,944 — 10,753 25 Wealth management loans and mortgages: Investment grade 34 81 12 171 56 85 6,877 — 7,316 Non-investment grade — — — — — 35 79 — 114 Wealth management mortgages 491 1,126 719 1,360 1,736 2,976 37 — 8,445 Total wealth management loans and mortgages 525 1,207 731 1,531 1,792 3,096 6,993 — 15,875 27 Lease financings 45 20 20 12 29 902 — — 1,028 — Other residential mortgages — — — — — 450 — — 450 2 Other loans — — — — — — 1,530 — 1,530 1 Margin loans 2,552 1,000 — — — — 9,357 — 12,909 11 Total loans $ 3,926 $ 4,407 $ 2,267 $ 2,951 $ 2,747 $ 5,263 $ 29,628 $ 29 $ 51,218 $ 77 (a) Excludes overdrafts of $4,179 million . Overdrafts occur on a daily basis primarily in the custody and securities clearance business and are generally repaid within two business days. Commercial loans The commercial loan portfolio is divided into investment grade and non-investment grade categories based on the assigned internal credit ratings, which are generally consistent with those of the public rating agencies. Customers with ratings consistent with BBB- (S&P)/Baa3 (Moody’s) or better are considered to be investment grade. Those clients with ratings lower than this threshold are considered to be non-investment grade. Commercial real estate Our income-producing commercial real estate facilities are focused on experienced owners and are structured with moderate leverage based on existing cash flows. Our commercial real estate lending activities also include construction and renovation facilities. Financial institutions Financial institution exposures are high quality, with 95% of the exposures meeting the investment grade equivalent criteria of our internal credit rating classification at June 30, 2020 . In addition, 75% of the financial institutions exposure is secured. For example, securities industry clients and asset managers often borrow against marketable securities held in custody. The exposure to financial institutions is generally short-term with 90% expiring within one year. Wealth management loans and mortgages Wealth management non-mortgage loans are not typically rated by external rating agencies. A majority of the wealth management loans are secured by the customers’ investment management accounts or custody accounts. Eligible assets pledged for these loans are typically investment grade fixed-income securities, equities and/or mutual funds. Internal ratings for this portion of the wealth management portfolio, therefore, would equate to investment grade external ratings. Wealth management loans are provided to select customers based on the pledge of other types of assets, including business assets, fixed assets or a modest amount of commercial real estate. For the loans collateralized by other assets, the credit quality of the obligor is carefully analyzed, but we do not consider this portfolio of loans to be investment grade. Credit quality indicators for wealth management mortgages are not correlated to external ratings. Wealth management mortgages are typically loans to high-net-worth individuals, which are secured primarily by residential property. These loans are primarily interest-only, adjustable rate mortgages with a weighted-average loan-to-value ratio of 62% at origination. Delinquency rate is a key indicator of credit quality in the wealth management portfolio. At June 30, 2020 , less than 1% of the mortgages were past due. At June 30, 2020 , the wealth management mortgage portfolio consisted of the following geographic concentrations: California - 23% ; New York - 17% ; Massachusetts - 10% ; Florida - 8% ; and other - 42% . Lease financing At June 30, 2020 , the lease financings portfolio consisted of exposures backed by well-diversified assets, primarily large-ticket transportation equipment and real estate. The largest component of our lease residual value exposure is freight-related rail. Assets are both domestic and foreign-based, with primary concentrations in the U.S. and Germany. Other residential mortgages The other residential mortgage portfolio primarily consists of 1-4 family residential mortgage loans and totaled $450 million at June 30, 2020 and $494 million at Dec. 31, 2019 . These loans are not typically correlated to external ratings. Included in this portfolio at June 30, 2020 were $81 million of mortgage loans purchased in 2005, 2006 and the first quarter of 2007, of which 25% of the serviced loan balance was at least 60 days delinquent. Overdrafts Overdrafts primarily relate to custody and securities clearance clients and totaled $4.2 billion at June 30, 2020 and $2.7 billion at Dec. 31, 2019 . Overdrafts occur on a daily basis and are generally repaid within two business days. Other loans Other loans primarily include loans to consumers that are fully collateralized with equities, mutual funds and fixed-income securities. Margin loans We had $12.9 billion of secured margin loans at June 30, 2020 , compared with $13.4 billion at Dec. 31, 2019 . Margin loans are collateralized with marketable securities, and borrowers are required to maintain a daily collateral margin in excess of 100% of the value of the loan. We have rarely suffered a loss on these types of loans. Reverse repurchase agreements Reverse repurchase agreements at June 30, 2020 were fully secured with high quality collateral. As a result, there was no allowance for credit losses related to these assets at June 30, 2020 . This compares to an $18 million allowance at March 31, 2020. The decrease is driven by a reduction in exposure and improvement in collateral liquidity and values related to reverse repurchase agreements collateralized by non-agency debt securities.

Goodwill and intangible assets

Goodwill and intangible assets	6 Months Ended
	Jun. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and intangible assets	Goodwill and intangible assets Goodwill The tables below provide a breakdown of goodwill by business. Goodwill by business (in millions) Investment Investment and Wealth Other Consolidated Balance at Dec. 31, 2019 $ 8,332 $ 9,007 $ 47 $ 17,386 Foreign currency translation (24 ) (109 ) — (133 ) Other (a) 47 — (47 ) — Balance at June 30, 2020 $ 8,355 $ 8,898 $ — $ 17,253 (a) Reflects the transfer of goodwill associated with the Capital Markets business. Goodwill by business (in millions) Investment Investment and Wealth Management Other Consolidated Balance at Dec. 31, 2018 $ 8,333 $ 8,970 $ 47 $ 17,350 Foreign currency translation (6 ) (7 ) — (13 ) Balance at June 30, 2019 $ 8,327 $ 8,963 $ 47 $ 17,337 Intangible assets The tables below provide a breakdown of intangible assets by business. Intangible assets – net carrying amount by business (in millions) Investment Investment and Wealth Management Other Consolidated Balance at Dec. 31, 2019 $ 678 $ 1,580 $ 849 $ 3,107 Amortization (36 ) (16 ) — (52 ) Foreign currency translation — (10 ) — (10 ) Balance at June 30, 2020 $ 642 $ 1,554 $ 849 $ 3,045 Intangible assets – net carrying amount by business (in millions) Investment Investment and Wealth Management Other Consolidated Balance at Dec. 31, 2018 $ 758 $ 1,613 $ 849 $ 3,220 Amortization (41 ) (18 ) — (59 ) Foreign currency translation — (1 ) — (1 ) Balance at June 30, 2019 $ 717 $ 1,594 $ 849 $ 3,160 The table below provides a breakdown of intangible assets by type. Intangible assets June 30, 2020 Dec. 31, 2019 (in millions) Gross carrying amount Accumulated amortization Net carrying amount Remaining weighted- average amortization period Gross Accumulated Net carrying amount Subject to amortization: (a) Customer contracts—Investment Services $ 1,514 $ (1,244 ) $ 270 10 years $ 1,520 $ (1,214 ) $ 306 Customer relationships—Investment and Wealth Management 709 (554 ) 155 10 years 712 (544 ) 168 Other 64 (19 ) 45 14 years 64 (16 ) 48 Total subject to amortization 2,287 (1,817 ) 470 10 years 2,296 (1,774 ) 522 Not subject to amortization: (b) Tradenames 1,291 N/A 1,291 N/A 1,293 N/A 1,293 Customer relationships 1,284 N/A 1,284 N/A 1,292 N/A 1,292 Total not subject to amortization 2,575 N/A 2,575 N/A 2,585 N/A 2,585 Total intangible assets $ 4,862 $ (1,817 ) $ 3,045 N/A $ 4,881 $ (1,774 ) $ 3,107 (a) Excludes fully amortized intangible assets. (b) Intangible assets not subject to amortization have an indefinite life. Estimated annual amortization expense for current intangibles for the next five years is as follows: For the year ended Estimated amortization expense (in millions) 2020 $ 104 2021 81 2022 63 2023 52 2024 45 Impairment testing The goodwill impairment test is performed at least annually at the reporting unit level. Intangible assets not subject to amortization are tested for impairment annually or more often if events or circumstances indicate they may be impaired. BNY Mellon’s three business segments include six reporting units for which goodwill impairment testing is performed on an annual basis. The Investment Services segment is comprised of four reporting units and the Investment and Wealth Management segment is comprised of two reporting units. As a result of the annual goodwill impairment test of the six reporting units conducted in the second quarter of 2020 , no goodwill impairment was recognized.

Other assets

Other assets	6 Months Ended
	Jun. 30, 2020
Other Assets [Abstract]
Other assets	Other assets The following table provides the components of other assets presented on the consolidated balance sheet. Other assets June 30, 2020 Dec. 31, 2019 (in millions) Corporate/bank-owned life insurance $ 5,245 $ 5,219 Accounts receivable 3,404 3,802 Fails to deliver 3,201 1,671 Software 1,778 1,590 Prepaid pension assets 1,545 1,464 Equity in a joint venture and other investments 1,146 1,102 Renewable energy investments 1,083 1,144 Qualified affordable housing project investments 962 1,024 Prepaid expense 544 491 Federal Reserve Bank stock 477 466 Income taxes receivable 194 388 Seed capital 149 184 Fair value of hedging derivatives 137 21 Other (a) 1,441 1,655 Total other assets $ 21,306 $ 20,221 (a) At June 30, 2020 and Dec. 31, 2019 , other assets include $7 million and $22 million , respectively, of Federal Home Loan Bank stock, at cost. Non-readily marketable equity securities Non-readily marketable equity securities do not have readily determinable fair values. These investments are valued using a measurement alternative where the investments are carried at cost, less any impairment, and plus or minus changes resulting from observable price changes in orderly transactions for an identical or similar investment of the same issuer. The observable price changes are recorded in investment and other income on the consolidated income statement. Our non-readily marketable equity securities totaled $106 million at June 30, 2020 and $61 million at Dec. 31, 2019 and are included in equity in a joint venture and other investments in the table above. The following table presents the adjustments on the non-readily marketable equity securities. Adjustments on non-readily marketable equity securities Life-to-date (in millions) 2Q20 1Q20 2Q19 YTD20 YTD19 Upward adjustments $ 2 $ 4 $ 2 $ 6 $ 2 $ 38 Downward adjustments — — (1 ) — (1 ) (4 ) Net adjustments $ 2 $ 4 $ 1 $ 6 $ 1 $ 34 Qualified affordable housing project investments We invest in affordable housing projects primarily to satisfy the Company’s requirements under the Community Reinvestment Act. Our total investment in qualified affordable housing projects totaled $1.0 billion at both June 30, 2020 and Dec. 31, 2019 . Commitments to fund future investments in qualified affordable housing projects totaled $363 million at June 30, 2020 and $422 million at Dec. 31, 2019 and are recorded in other liabilities. A summary of the commitments to fund future investments is as follows: 2020 – $72 million ; 2021 – $179 million ; 2022 – $82 million ; 2023 – $5 million ; 2024 – $1 million ; and 2025 and thereafter – $24 million . Tax credits and other tax benefits recognized were $38 million in the second quarter of 2020 , $38 million in the first quarter of 2020 and $39 million in the second quarter of 2019 , $76 million in the first six months of 2020 and $78 million in the first six months of 2019 . Amortization expense included in the provision for income taxes was $31 million in the second quarter of 2020 , $31 million in the first quarter of 2020 and $32 million in the second quarter of 2019 , $62 million in the first six months of 2020 and $64 million in the first six months of 2019 Investments valued using net asset value (“NAV”) per share In our Investment and Wealth Management business, we make seed capital investments in certain funds we manage. We also hold private equity investments, specifically small business investment companies (“SBICs”), which are compliant with the Volcker Rule, and certain other corporate investments. Seed capital, private equity and other corporate investments are included in other assets on the consolidated balance sheet. The fair value of certain of these investments was estimated using the NAV per share for our ownership interest in the funds. The table below presents information on our investments valued using NAV. Investments valued using NAV June 30, 2020 Dec. 31, 2019 (in millions) Fair value Unfunded commitments Fair value Unfunded commitments Seed capital (a) $ 56 $ 12 $ 59 $ — Private equity investments (SBICs) (b) 91 58 89 55 Other (c) 40 — 33 — Total $ 187 $ 70 $ 181 $ 55 (a) Primarily includes leveraged loans and structured credit funds, which are generally not redeemable. Distributions from such investments will be received as the underlying investments in the funds, which have lives of six to 11 years at June 30, 2020 and lives of six years at Dec. 31, 2019, are liquidated. (b) Private equity investments include Volcker Rule-compliant investments in SBICs that invest in various sectors of the economy. Private equity investments do not have redemption rights. Distributions from such investments will be received as the underlying investments in the private equity investments, which have a life of 10 years, are liquidated. (c) Primarily includes investments in funds that relate to deferred compensation arrangements with employees. Investments in funds can be redeemed on a monthly to quarterly basis with redemption notice periods of up to 95 days .

Contract revenue

Contract revenue	6 Months Ended
	Jun. 30, 2020
Revenue from Contract with Customer [Abstract]
Contract revenue	Contract revenue Fee revenue in Investment Services and Investment and Wealth Management is primarily variable, based on levels of assets under custody and/or administration, assets under management and the level of client-driven transactions, as specified in fee schedules. See Note 10 of the Notes to Consolidated Financial Statements in our 2019 Annual Report for information on the nature of our services and revenue recognition. See Note 24 of the Notes to Consolidated Financial Statements in our 2019 Annual Report for additional information on our principal businesses, Investment Services and Investment and Wealth Management, and the primary services provided. Disaggregation of contract revenue Contract revenue is included in fee revenue on the consolidated income statement. The following table presents fee revenue related to contracts with customers, disaggregated by type of fee revenue, for each business segment. Business segment data has been determined on an internal management basis of accounting, rather than the generally accepted accounting principles used for consolidated financial reporting. Disaggregation of contract revenue by business segment Quarter ended June 30, 2020 March 31, 2020 June 30, 2019 (a) (in millions) IS IWM Other Total IS IWM Other Total IS IWM Other Total Fee revenue - contract revenue: Investment services fees: Asset servicing fees $ 1,147 $ 25 $ (15 ) $ 1,157 $ 1,127 $ 23 $ (11 ) $ 1,139 $ 1,095 $ 20 $ (6 ) $ 1,109 Clearing services fees 431 — — 431 470 — — 470 411 — (1 ) 410 Issuer services fees 277 — — 277 263 — — 263 291 — — 291 Treasury services fees 144 — 1 145 149 — — 149 140 1 — 141 Total investment services fees 1,999 25 (14 ) 2,010 2,009 23 (11 ) 2,021 1,937 21 (7 ) 1,951 Investment management and performance fees 4 792 (5 ) 791 5 862 (4 ) 863 4 833 (4 ) 833 Financing-related fees 23 1 — 24 28 — — 28 16 — 1 17 Distribution and servicing (7 ) 34 — 27 (12 ) 43 — 31 (13 ) 44 — 31 Investment and other income 62 (41 ) 3 24 72 (50 ) — 22 69 (48 ) — 21 Total fee revenue - contract revenue 2,081 811 (16 ) 2,876 2,102 878 (15 ) 2,965 2,013 850 (10 ) 2,853 Fee and other revenue - not in scope of Accounting Standards Codification (“ASC”) 606 (b)(c) 258 27 54 339 334 (32 ) 45 347 220 4 41 265 Total fee and other revenue $ 2,339 $ 838 $ 38 $ 3,215 $ 2,436 $ 846 $ 30 $ 3,312 $ 2,233 $ 854 $ 31 $ 3,118 (a) Restated to reflect the first quarter 2020 business segment reclassifications. There was no impact on total revenue, by type or in aggregate. (b) Primarily includes foreign exchange and other trading revenue, investment and other income (loss), financing-related fees, asset servicing fees, net securities gains (losses), all of which are accounted for using other accounting guidance. (c) The Investment and Wealth Management business includes income (loss) from consolidated investment management funds, net of noncontrolling interests, of $39 million in the second quarter of 2020 , $(20) million in the first quarter of 2020 and $6 million in the second quarter of 2019 . IS - Investment Services segment. IWM - Investment and Wealth Management segment. Disaggregation of contract revenue by business segment Year-to-date June 30, 2020 June 30, 2019 (a) (in millions) IS IWM Other Total IS IWM Other Total Fee revenue - contract revenue: Investment services fees: Asset servicing fees $ 2,274 $ 48 $ (26 ) $ 2,296 $ 2,176 $ 40 $ (14 ) $ 2,202 Clearing services fees 901 — — 901 809 — (1 ) 808 Issuer services fees 540 — — 540 542 — — 542 Treasury services fees 293 — 1 294 272 1 — 273 Total investment services fees 4,008 48 (25 ) 4,031 3,799 41 (15 ) 3,825 Investment management and performance fees 9 1,654 (9 ) 1,654 8 1,674 (8 ) 1,674 Financing-related fees 51 1 — 52 33 — 1 34 Distribution and servicing (19 ) 77 — 58 (27 ) 89 — 62 Investment and other income 134 (91 ) 3 46 138 (97 ) — 41 Total fee revenue - contract revenue 4,183 1,689 (31 ) 5,841 3,951 1,707 (22 ) 5,636 Fee and other revenue - not in scope of ASC 606 (b)(c) 592 (5 ) 99 686 443 16 71 530 Total fee and other revenue $ 4,775 $ 1,684 $ 68 $ 6,527 $ 4,394 $ 1,723 $ 49 $ 6,166 (a) Restated to reflect the first quarter 2020 business segment reclassifications. There was no impact on total revenue, by type or in aggregate. (b) Primarily includes foreign exchange and other trading revenue, investment and other income (loss), financing-related fees, asset servicing fees, net securities gains (losses), all of which are accounted for using other accounting guidance. (c) The Investment and Wealth Management business includes income from consolidated investment management funds, net of noncontrolling interests, of $19 million in the first six months of 2020 and $22 million in the first six months of 2019 . IS - Investment Services segment. IWM - Investment and Wealth Management segment. Contract balances Our clients are billed based on fee schedules that are agreed upon in each customer contract. Receivables from customers were $2.4 billion at both June 30, 2020 and Dec. 31, 2019 . Contract assets represent accrued revenues that have not yet been billed to the customers due to certain contractual terms other than the passage of time and were $69 million at June 30, 2020 and $32 million at Dec. 31, 2019 . Accrued revenues recorded as contract assets are usually billed on an annual basis. Both receivables from customers and contract assets are included in other assets on the consolidated balance sheet. Contract liabilities represent payments received in advance of providing services under certain contracts and were $195 million at June 30, 2020 and $168 million at Dec. 31, 2019 . Contract liabilities are included in other liabilities on the consolidated balance sheet. Revenue recognized in the second quarter of 2020 relating to contract liabilities as of March 31, 2020 was $58 million . Revenue recognized in the first six months of 2020 relating to contract liabilities as of Dec. 31, 2019 was $78 million . Changes in contract assets and liabilities primarily relate to either party’s performance under the contracts. Contract costs Incremental costs for obtaining contracts that are deemed recoverable are capitalized as contract costs. Such costs result from the payment of sales incentives, primarily in the Wealth Management business, and totaled $80 million at June 30, 2020 and $86 million at Dec. 31, 2019 . Capitalized sales incentives are amortized based on the transfer of goods or services to which the assets relate and typically average nine years . The amortization of capitalized sales incentives, which is primarily included in staff expense on the consolidated income statement, totaled $5 million in the second quarter of 2020 , second quarter of 2019 and first quarter of 2020 and $10 million in both the first six months of 2020 and first six months of 2019 . Costs to fulfill a contract are capitalized when they relate directly to an existing contract or a specific anticipated contract, generate or enhance resources that will be used to fulfill performance obligations, and are recoverable. Such costs generally represent set-up costs, which include any direct cost incurred at the inception of a contract which enables the fulfillment of the performance obligation, and totaled $14 million at June 30, 2020 and $16 million at Dec. 31, 2019 . These capitalized costs are amortized on a straight-line basis over the expected contract period, which generally ranges from seven to nine years . The amortization is included in other expense on the consolidated income statement and totaled $2 million in the second quarter of 2020 and second quarter of 2019 , $1 million in the first quarter of 2020 and $3 million in the first six months of 2020 and first six months of 2019 . There were no impairments recorded on capitalized contract costs in the first six months of 2020 . Unsatisfied performance obligations We do not have any unsatisfied performance obligations other than those that are subject to a practical expedient election under ASC 606, Revenue From Contracts With Customers . The practical expedient election applies to (i) contracts with an original expected length of one year or less, and (ii) contracts for which we recognize revenue at the amount to which we have the right to invoice for services performed.

Net interest revenue

Net interest revenue	6 Months Ended
	Jun. 30, 2020
Interest Revenue (Expense), Net [Abstract]
Net interest revenue	Net interest revenue The following table provides the components of net interest revenue presented on the consolidated income statement. Net interest revenue Quarter ended Year-to-date (in millions) June 30, 2020 March 31, 2020 June 30, 2019 June 30, 2020 June 30, 2019 Interest revenue Deposits with the Federal Reserve and other central banks $ (7 ) $ 80 $ 113 $ 73 $ 252 Deposits with banks 40 58 64 98 127 Federal funds sold and securities purchased under resale agreements 61 396 568 457 1,042 Margin loans 40 87 119 127 254 Non-margin loans 230 309 365 539 720 Securities: Taxable 556 594 687 1,150 1,393 Exempt from federal income taxes 6 6 10 12 22 Total securities 562 600 697 1,162 1,415 Trading securities 17 40 39 57 75 Total interest revenue 943 1,570 1,965 2,513 3,885 Interest expense Deposits (17 ) 240 432 223 823 Federal funds purchased and securities sold under repurchase agreements 1 275 372 276 703 Trading liabilities 2 7 11 9 18 Other borrowed funds 7 4 20 11 44 Commercial paper 1 6 18 7 26 Customer payables (1 ) 30 69 29 139 Long-term debt 170 194 241 364 489 Total interest expense 163 756 1,163 919 2,242 Net interest revenue 780 814 802 1,594 1,643 Provision for credit losses 143 169 (8 ) 312 (1 ) Net interest revenue after provision for credit losses $ 637 $ 645 $ 810 $ 1,282 $ 1,644

Employee benefit plans

Employee benefit plans	6 Months Ended
	Jun. 30, 2020
Retirement Benefits [Abstract]
Employee benefit plans	Employee benefit plans The components of net periodic benefit (credit) cost are presented below. The service cost component is reflected in staff expense, whereas the remaining components are reflected in other expense. Net periodic benefit (credit) cost Quarter ended June 30, 2020 March 31, 2020 June 30, 2019 (in millions) Domestic pension benefits Foreign pension benefits Health care benefits Domestic pension benefits Foreign pension benefits Health care benefits Domestic pension benefits Foreign pension benefits Health care benefits Service cost $ — $ 3 $ — $ — $ 3 $ — $ — $ 3 $ — Interest cost 39 6 1 39 7 1 45 8 1 Expected return on assets (79 ) (9 ) (2 ) (80 ) (10 ) (1 ) (84 ) (12 ) (2 ) Other 21 3 — 22 3 (1 ) 13 1 — Net periodic benefit (credit) cost $ (19 ) $ 3 $ (1 ) $ (19 ) $ 3 $ (1 ) $ (26 ) $ — $ (1 ) Net periodic benefit (credit) cost Year-to-date June 30, 2020 June 30, 2019 (in millions) Domestic pension benefits Foreign pension benefits Health care benefits Domestic pension benefits Foreign pension benefits Health care benefits Service cost $ — $ 6 $ — $ — $ 6 $ — Interest cost 78 13 2 89 16 3 Expected return on assets (159 ) (19 ) (3 ) (168 ) (23 ) (4 ) Other 43 6 (1 ) 26 1 (1 ) Net periodic benefit (credit) cost $ (38 ) $ 6 $ (2 ) $ (53 ) $ — $ (2 )

Income taxes

Income taxes	6 Months Ended
	Jun. 30, 2020
Income Tax Disclosure [Abstract]
Income taxes	Income taxes BNY Mellon recorded an income tax provision of $216 million ( 18.3% effective tax rate) in the second quarter of 2020 , $264 million ( 20.5% effective tax rate) in the second quarter of 2019 and $265 million ( 21.6% effective tax rate) in the first quarter of 2020 . Our total tax reserves as of June 30, 2020 were $178 million compared with $173 million at Dec. 31, 2019 . If these tax reserves were unnecessary, $178 million would affect the effective tax rate in future periods. We recognize accrued interest and penalties, if applicable, related to income taxes in income tax expense. Included in the balance sheet at June 30, 2020 is accrued interest, where applicable, of $34 million . The additional tax expense related to interest for the six months ended June 30, 2020 was $3 million , compared with $6 million for the six months ended June 30, 2019 . It is reasonably possible the total reserve for uncertain tax positions could decrease within the next 12 months by approximately $100 million as a result of adjustments related to tax years that are still subject to examination. Our federal income tax returns are closed to examination through 2016. Our New York State, New York City and UK income tax returns are closed to examination through 2012.

Variable interest entities and

Variable interest entities and securitization	6 Months Ended
	Jun. 30, 2020
Securitizations And Variable Interest Entities Disclosure [Abstract]
Variable interest entities and securitization	Variable interest entities and securitization We have variable interests in variable interest entities (“VIEs”), which include investments in retail, institutional and alternative investment funds, including CLO structures in which we provide asset management services, some of which are consolidated. We earn management fees from these funds as well as performance fees in certain funds and may also provide start-up capital for new funds. The funds are primarily financed by our customers’ investments in the funds’ equity or debt. Additionally, we invest in qualified affordable housing and renewable energy projects, which are designed to generate a return primarily through the realization of tax credits. The projects, which are structured as limited partnerships and limited liability companies, are also VIEs, but are not consolidated. The following table presents the incremental assets and liabilities included in the consolidated balance sheet as of June 30, 2020 and Dec. 31, 2019 . The net assets of any consolidated VIE are solely available to settle the liabilities of the VIE and to settle any investors’ ownership liquidation requests, including any seed capital we invested in the VIE. Consolidated investments June 30, 2020 Dec. 31, 2019 (in millions) Investment Management funds Securitization Total consolidated investments Investment Management funds Securitization Total consolidated investments Trading assets $ 450 $ 400 $ 850 $ 229 $ 400 $ 629 Other assets 10 — 10 16 — 16 Total assets $ 460 (a) $ 400 $ 860 $ 245 (b) $ 400 $ 645 Other liabilities $ 4 $ 399 $ 403 $ 1 $ 387 $ 388 Total liabilities $ 4 (a) $ 399 $ 403 $ 1 (b) $ 387 $ 388 Nonredeemable noncontrolling interests $ 112 (a) $ — $ 112 $ 102 (b) $ — $ 102 (a) Includes voting model entities (“VMEs”) with assets of $283 million , liabilities of $1 million and nonredeemable noncontrolling interests of $37 million . (b) Includes VMEs with assets of $50 million , liabilities of $1 million and nonredeemable noncontrolling interests of $1 million . We have not provided financial or other support that was not otherwise contractually required to be provided to our VIEs. Additionally, creditors of any consolidated VIEs do not have any recourse to the general credit of BNY Mellon. Non-consolidated VIEs As of June 30, 2020 and Dec. 31, 2019 , the following assets and liabilities related to the VIEs where we are not the primary beneficiary were included in our consolidated balance sheets and primarily related to accounting for our investments in qualified affordable housing and renewable energy projects. The maximum loss exposure indicated in the table below relates solely to our investments in, and unfunded commitments to, the VIEs. Non-consolidated VIEs June 30, 2020 Dec. 31, 2019 (in millions) Assets Liabilities Maximum loss exposure Assets Liabilities Maximum loss exposure Securities - Available-for-sale (a) $ 199 $ — $ 199 $ 208 $ — $ 208 Other 2,237 363 2,609 2,400 422 2,822 (a) Includes investments in the Company’s sponsored CLOs.

Preferred stock

Preferred stock	6 Months Ended
	Jun. 30, 2020
Stockholders' Equity Note [Abstract]
Preferred stock	Preferred stock The Parent has 100 million authorized shares of preferred stock with a par value of $0.01 per share. The following table summarizes the Parent’s preferred stock issued and outstanding at June 30, 2020 and Dec. 31, 2019 . Preferred stock summary (a) Total shares issued and outstanding Carrying value (b) (in millions) June 30, 2020 Dec. 31, 2019 June 30, 2020 Dec. 31, 2019 Per annum dividend rate Series A Greater of (i) three-month LIBOR plus 0.565% for the related distribution period; or (ii) 4.000% 5,001 5,001 $ 500 $ 500 Series C 5.2% 5,825 5,825 568 568 Series D 4.50% to but excluding June 20, 2023, then a floating rate equal to the three-month LIBOR plus 2.46% 5,000 5,000 494 494 Series E 4.95% to but excluding June 20, 2020, then a floating rate equal to the three-month LIBOR plus 3.42% 10,000 10,000 990 990 Series F 4.625% to but excluding Sept. 20, 2026, then a floating rate equal to the three-month LIBOR plus 3.131% 10,000 10,000 990 990 Series G 4.70% to but excluding Sept. 20, 2025, then a floating rate equal to the five-year treasury rate plus 4.358% 10,000 — 990 — Total 45,826 35,826 $ 4,532 $ 3,542 (a) All outstanding preferred stock is noncumulative perpetual preferred stock with a liquidation preference of $100,000 per share. (b) The carrying value of the Series C, Series D, Series E, Series F and Series G preferred stock is recorded net of issuance costs. In May 2020, the Parent issued 1,000,000 depositary shares, each representing a 1/100th interest in a share of the Parent’s Series G Noncumulative Perpetual Preferred Stock (the “Series G Preferred Stock”). The Parent will pay dividends on the Series G Preferred Stock, if declared by its board of directors on each March 20 and September 20, at an annual rate of 4.70% , from the original issue date to but excluding Sept. 20, 2025; and at a floating rate equal to the five-year treasury rate on the date that is three business days prior to the reset date plus 4.358% for each reset period, from and including Sept. 20, 2025. The floating rate will initially reset on Sept. 20, 2025 and subsequently on each date falling on the fifth anniversary of the preceding reset date. The table below presents the dividends paid on the Parent’s preferred stock. Preferred dividends paid (dollars in millions, except per share amounts) Depositary shares per share 2Q20 1Q20 2Q19 YTD20 YTD19 Per share Total Per share Total Per share Total Per share Total Per share Total Series A 100 (a) $ 1,022.22 $ 5 $ 1,011.11 $ 5 $ 1,022.22 $ 5 $ 2,033.33 $ 10 $ 2,022.22 $ 10 Series C 4,000 1,300.00 8 1,300.00 8 1,300.00 7 2,600.00 16 2,600.00 15 Series D 100 2,250.00 11 N/A — 2,250.00 11 2,250.00 11 2,250.00 11 Series E 100 2,475.00 25 N/A — 2,475.00 25 2,475.00 25 2,475.00 25 Series F 100 N/A — 2,312.50 23 N/A — 2,312.50 23 2,312.50 23 Total $ 49 $ 36 $ 48 $ 85 $ 84 (a) Represents Normal Preferred Capital Securities. N/A - Not applicable. For additional information on the preferred stock, see Note 15 of the Notes to Consolidated Financial Statements in our 2019 Annual Report.

Other comprehensive income (los

Other comprehensive income (loss)	6 Months Ended
	Jun. 30, 2020
Equity [Abstract]
Other comprehensive income (loss)	Other comprehensive income (loss) Components of other comprehensive income (loss) Quarter ended June 30, 2020 March 31, 2020 June 30, 2019 (in millions) Pre-tax Tax After-tax Pre-tax Tax After-tax Pre-tax Tax After-tax Foreign currency translation: Foreign currency translation adjustments arising during the period (a) $ 104 $ 11 $ 115 $ (265 ) $ (104 ) $ (369 ) $ 29 $ (19 ) $ 10 Total foreign currency translation 104 11 115 (265 ) (104 ) (369 ) 29 (19 ) 10 Unrealized gain (loss) on assets available-for-sale: Unrealized gain (loss) arising during period 989 (236 ) 753 243 (60 ) 183 384 (97 ) 287 Reclassification adjustment (b) (9 ) 2 (7 ) (9 ) 2 (7 ) (7 ) 2 (5 ) Net unrealized gain (loss) on assets available-for-sale 980 (234 ) 746 234 (58 ) 176 377 (95 ) 282 Defined benefit plans: Amortization of prior service credit, net loss and initial obligation included in net periodic benefit cost (b) 24 (5 ) 19 24 (6 ) 18 12 (2 ) 10 Total defined benefit plans 24 (5 ) 19 24 (6 ) 18 12 (2 ) 10 Unrealized gain (loss) on cash flow hedges: Unrealized hedge gain (loss) arising during period 3 (1 ) 2 (13 ) 3 (10 ) 2 (2 ) — Reclassification of net (gain) loss to net income: Foreign exchange (“FX”) contracts - staff expense 3 (1 ) 2 (1 ) — (1 ) — — — Total reclassifications to net income 3 (1 ) 2 (1 ) — (1 ) — — — Net unrealized gain (loss) on cash flow hedges 6 (2 ) 4 (14 ) 3 (11 ) 2 (2 ) — Total other comprehensive income (loss) $ 1,114 $ (230 ) $ 884 $ (21 ) $ (165 ) $ (186 ) $ 420 $ (118 ) $ 302 (a) Includes the impact of hedges of net investments in foreign subsidiaries. See Note 17 for additional information. (b) The reclassification adjustment related to the unrealized gain (loss) on assets available-for-sale is recorded as net securities gains on the consolidated income statement. The amortization of prior service credit, net loss and initial obligation included in net periodic benefit cost is recorded as staff expense on the consolidated income statement. Components of other comprehensive income (loss) Year-to-date June 30, 2020 June 30, 2019 (in millions) Pre-tax amount Tax (expense) benefit After-tax amount Pre-tax amount Tax (expense) benefit After-tax amount Foreign currency translation: Foreign currency translation adjustments arising during the period (a) $ (161 ) $ (93 ) $ (254 ) $ 56 $ (17 ) $ 39 Total foreign currency translation (161 ) (93 ) (254 ) 56 (17 ) 39 Unrealized gain (loss) on assets available-for-sale: Unrealized gain (loss) arising during period 1,232 (296 ) 936 706 (180 ) 526 Reclassification adjustment (b) (18 ) 4 (14 ) (8 ) 2 (6 ) Net unrealized gain (loss) on assets available-for-sale 1,214 (292 ) 922 698 (178 ) 520 Defined benefit plans: Net gain (loss) arising during the period — — — (11 ) 2 (9 ) Amortization of prior service credit, net loss and initial obligation included in net periodic benefit cost (b) 48 (11 ) 37 25 (5 ) 20 Total defined benefit plans 48 (11 ) 37 14 (3 ) 11 Unrealized (loss) gain on cash flow hedges: Unrealized hedge (loss) gain arising during period (10 ) 2 (8 ) 8 (6 ) 2 Reclassification of net loss (gain) to net income : FX contracts - staff expense 2 (1 ) 1 1 2 3 Total reclassifications to net income 2 (1 ) 1 1 2 3 Net unrealized (loss) gain on cash flow hedges (8 ) 1 (7 ) 9 (4 ) 5 Total other comprehensive income (loss) $ 1,093 $ (395 ) $ 698 $ 777 $ (202 ) $ 575 (a) Includes the impact of hedges of net investments in foreign subsidiaries. See Note 17 for additional information. (b) The reclassification adjustment related to the unrealized gain (loss) on assets available-for-sale is recorded as net securities gains on the consolidated income statement. The amortization of prior service credit, net loss and initial obligation included in net periodic benefit cost is recorded as staff expense on the consolidated income statement.

Fair value measurement

Fair value measurement	6 Months Ended
	Jun. 30, 2020
Fair Value Disclosures [Abstract]
Fair value measurement	Fair value measurement Fair value is defined as the price that would be received to sell an asset, or paid to transfer a liability, in an orderly transaction between market participants at the measurement date. A three-level hierarchy for fair value measurements is utilized based upon the transparency of inputs to the valuation of an asset or liability as of the measurement date. BNY Mellon’s own creditworthiness is considered when valuing liabilities. See Note 20 of the Notes to Consolidated Financial Statements in our 2019 Annual Report for information on how we determine fair value and the fair value hierarchy. The following tables present the financial instruments carried at fair value at June 30, 2020 and Dec. 31, 2019 , by caption on the consolidated balance sheet and by the three-level valuation hierarchy. We have included credit ratings information in certain of the tables because the information indicates the degree of credit risk to which we are exposed, and significant changes in ratings classifications could result in increased risk for us. Assets measured at fair value on a recurring basis at June 30, 2020 Total carrying (dollars in millions) Level 1 Level 2 Level 3 Netting (a) Available-for-sale securities: Agency RMBS $ — $ 26,437 $ — $ — $ 26,437 U.S. Treasury 25,137 — — — 25,137 Sovereign debt/sovereign guaranteed 8,570 7,317 — — 15,887 Agency commercial MBS — 9,988 — — 9,988 Foreign covered bonds — 5,519 — — 5,519 Supranational — 5,448 — — 5,448 CLOs — 4,432 — — 4,432 Foreign government agencies — 3,578 — — 3,578 U.S. government agencies — 2,806 — — 2,806 Other ABS — 2,743 — — 2,743 Non-agency commercial MBS — 2,630 — — 2,630 Commercial paper/CDs — 1,853 — — 1,853 Non-agency RMBS (b) — 1,598 — — 1,598 State and political subdivisions — 1,179 — — 1,179 Corporate bonds — 831 — — 831 Other debt securities — 1 — — 1 Total available-for-sale securities 33,707 76,360 — — 110,067 Trading assets: Debt instruments 4,782 2,775 — — 7,557 Equity instruments (c) 2,397 — — — 2,397 Derivative assets not designated as hedging: Interest rate 5 5,496 — (2,436 ) 3,065 Foreign exchange — 4,322 — (3,204 ) 1,118 Equity and other contracts 2 11 — — 13 Total derivative assets not designated as hedging 7 9,829 — (5,640 ) 4,196 Total trading assets 7,186 12,604 — (5,640 ) 14,150 Other assets: Derivative assets designated as hedging: Foreign exchange — 137 — — 137 Total derivative assets designated as hedging — 137 — — 137 Other assets (d) 52 153 — — 205 Assets measured at NAV (d) 187 Subtotal assets of operations at fair value 40,945 89,254 — (5,640 ) 124,746 Percentage of assets of operations prior to netting 31 % 69 % — % Assets of consolidated investment management funds 416 44 — — 460 Total assets $ 41,361 $ 89,298 $ — $ (5,640 ) $ 125,206 Percentage of total assets prior to netting 32 % 68 % — % Liabilities measured at fair value on a recurring basis at June 30, 2020 Total carrying (dollars in millions) Level 1 Level 2 Level 3 Netting (a) Trading liabilities: Debt instruments $ 2,589 $ 75 $ — $ — $ 2,664 Equity instruments 20 — — — 20 Derivative liabilities not designated as hedging: Interest rate 7 4,661 — (2,680 ) 1,988 Foreign exchange — 4,036 — (3,134 ) 902 Equity and other contracts 1 23 — (3 ) 21 Total derivative liabilities not designated as hedging 8 8,720 — (5,817 ) 2,911 Total trading liabilities 2,617 8,795 — (5,817 ) 5,595 Long-term debt (c) — 399 — — 399 Other liabilities – derivative liabilities designated as hedging: Interest rate — 915 — — 915 Foreign exchange — 49 — — 49 Total other liabilities – derivative liabilities designated as hedging — 964 — — 964 Subtotal liabilities of operations at fair value 2,617 10,158 — (5,817 ) 6,958 Percentage of liabilities of operations prior to netting 20 % 80 % — % Liabilities of consolidated investment management funds — 4 — — 4 Total liabilities $ 2,617 $ 10,162 $ — $ (5,817 ) $ 6,962 Percentage of total liabilities prior to netting 20 % 80 % — % (a) ASC 815, Derivatives and Hedging, permits the netting of derivative receivables and derivative payables under legally enforceable master netting agreements and permits the netting of cash collateral. Netting is applicable to derivatives not designated as hedging instruments included in trading assets or trading liabilities and derivatives designated as hedging instruments included in other assets or other liabilities. Netting is allocated to the derivative products based on the net fair value of each product. (b) Includes $538 million in Level 2 that was included in the former Grantor Trust. (c) Includes certain interests in securitizations. (d) Includes seed capital, private equity investments and other assets. Assets measured at fair value on a recurring basis at Dec. 31, 2019 Total carrying value (dollars in millions) Level 1 Level 2 Level 3 Netting (a) Available-for-sale securities: Agency RMBS $ — $ 27,043 $ — $ — $ 27,043 U.S. Treasury 15,431 — — — 15,431 Sovereign debt/sovereign guaranteed 7,784 4,862 — — 12,646 Agency commercial MBS — 9,417 — — 9,417 Foreign covered bonds — 4,197 — — 4,197 CLOs — 4,063 — — 4,063 Supranational — 3,709 — — 3,709 Foreign government agencies — 2,643 — — 2,643 Non-agency commercial MBS — 2,178 — — 2,178 Other ABS — 2,143 — — 2,143 U.S. government agencies — 1,949 — — 1,949 Non-agency RMBS (b) — 1,233 — — 1,233 State and political subdivisions — 1,044 — — 1,044 Corporate bonds — 853 — — 853 Other debt securities — 1 — — 1 Total available-for-sale securities 23,215 65,335 — — 88,550 Trading assets: Debt instruments 1,568 4,243 — — 5,811 Equity instruments (c) 4,539 — — — 4,539 Derivative assets not designated as hedging: Interest rate 4 3,686 — (1,792 ) 1,898 Foreign exchange — 5,331 — (4,021 ) 1,310 Equity and other contracts — 19 — (6 ) 13 Total derivative assets not designated as hedging 4 9,036 — (5,819 ) 3,221 Total trading assets 6,111 13,279 — (5,819 ) 13,571 Other assets : Derivative assets designated as hedging: Foreign exchange — 21 — — 21 Total derivative assets designated as hedging — 21 — — 21 Other assets (d) 38 179 — — 217 Assets measured at NAV (d) 181 Subtotal assets of operations at fair value 29,364 78,814 — (5,819 ) 102,540 Percentage of assets of operations prior to netting 27 % 73 % — % Assets of consolidated investment management funds 212 33 — — 245 Total assets $ 29,576 $ 78,847 $ — $ (5,819 ) $ 102,785 Percentage of total assets prior to netting 27 % 73 % — % Liabilities measured at fair value on a recurring basis at Dec. 31, 2019 Total carrying value (dollars in millions) Level 1 Level 2 Level 3 Netting (a) Trading liabilities: Debt instruments $ 1,477 $ 107 $ — $ — $ 1,584 Equity instruments 73 — — — 73 Derivative liabilities not designated as hedging: Interest rate 6 3,244 — (1,986 ) 1,264 Foreign exchange — 5,340 — (3,428 ) 1,912 Equity and other contracts 3 6 — (1 ) 8 Total derivative liabilities not designated as hedging 9 8,590 — (5,415 ) 3,184 Total trading liabilities 1,559 8,697 — (5,415 ) 4,841 Long-term debt (c) — 387 — — 387 Other liabilities – derivative liabilities designated as hedging: Interest rate — 350 — — 350 Foreign exchange — 257 — — 257 Total other liabilities – derivative liabilities designated as hedging — 607 — — 607 Subtotal liabilities of operations at fair value 1,559 9,691 — (5,415 ) 5,835 Percentage of liabilities of operations prior to netting 14 % 86 % — % Liabilities of consolidated investment management funds 1 — — — 1 Total liabilities $ 1,560 $ 9,691 $ — $ (5,415 ) $ 5,836 Percentage of total liabilities prior to netting 14 % 86 % — % (a) ASC 815, Derivatives and Hedging, permits the netting of derivative receivables and derivative payables under legally enforceable master netting agreements and permits the netting of cash collateral. Netting is applicable to derivatives not designated as hedging instruments included in trading assets or trading liabilities and derivatives designated as hedging instruments included in other assets or other liabilities. Netting is allocated to the derivative products based on the net fair value of each product. (b) Includes $640 million in Level 2 that was included in the former Grantor Trust. (c) Includes certain interests in securitizations. (d) Includes seed capital, private equity investments and other assets. Details of certain available-for-sale securities measured at fair value on a recurring basis June 30, 2020 Dec. 31, 2019 Total carrying value Ratings (a) Total carrying value Ratings (a) AAA/ AA- A+/ A- BBB+/ BBB- BB+ and lower AAA/ AA- A+/ A- BBB+/ BBB- BB+ and lower (dollars in millions) (b) (b) Non-agency RMBS (c) , originated in: 2007-2020 $ 938 82 % 1 % — % 17 % $ 464 55 % 1 % — % 44 % 2006 250 — 22 — 78 291 — 21 — 79 2005 262 5 2 7 86 305 5 2 8 85 2004 and earlier 148 21 22 8 49 173 22 24 4 50 Total non-agency RMBS $ 1,598 51 % 6 % 2 % 41 % $ 1,233 25 % 9 % 3 % 63 % Non-agency commercial MBS originated in: 2009-2020 $ 2,630 100 % — % — % — % $ 2,178 98 % 2 % — % — % Foreign covered bonds: Canada $ 2,241 100 % — % — % — % $ 1,798 100 % — % — % — % UK 1,093 100 — — — 984 100 — — — Australia 750 100 — — — 431 100 — — — Norway 533 100 — — — 287 100 — — — Germany 407 100 — — — 357 100 — — — Other 495 100 — — — 340 100 — — — Total foreign covered bonds $ 5,519 100 % — % — % — % $ 4,197 100 % — % — % — % Sovereign debt/sovereign guaranteed: UK $ 3,773 100 % — % — % — % $ 3,318 100 % — % — % — % Germany 2,346 100 — — — 1,997 100 — — — France 2,238 100 — — — 1,272 100 — — — Spain 1,961 — 4 96 — 1,453 — 6 94 — Italy 1,069 — — 100 — 1,260 — — 100 — Singapore 931 100 — — — 742 100 — — — Ireland 676 29 71 — — 301 — 100 — — Netherlands 564 100 — — — 791 100 — — — Canada 502 100 — — — 271 100 — — — Japan 434 — 100 — — 274 — 100 — — Belgium 411 100 — — — 79 100 — — — Austria 331 100 — — — 240 100 — — — Hong Kong 330 100 — — — 411 100 — — — Other (d) 321 45 — 21 34 237 39 4 — 57 Total sovereign debt/sovereign guaranteed $ 15,887 74 % 6 % 19 % 1 % $ 12,646 73 % 5 % 21 % 1 % Foreign government agencies: Germany $ 1,398 100 % — % — % — % $ 1,131 100 % — % — % — % Netherlands 730 100 — — — 678 100 — — — Canada 321 62 38 — — 71 — 100 — — France 281 100 — — — 42 100 — — — Sweden 276 100 — — — 202 100 — — — Finland 241 100 — — — 245 100 — — — Other 331 84 16 — — 274 79 21 — — Total foreign government agencies $ 3,578 95 % 5 % — % — % $ 2,643 95 % 5 % — % — % (a) Represents ratings by S&P or the equivalent. (b) At June 30, 2020 and Dec. 31, 2019 , sovereign debt/sovereign guaranteed securities were included in Level 1 and Level 2 in the valuation hierarchy. All other assets in the table are Level 2 assets in the valuation hierarchy. (c) Includes $538 million at June 30, 2020 and $640 million at Dec. 31, 2019 that were included in the former Grantor Trust. (d) Includes non-investment grade sovereign debt/sovereign guaranteed securities related to Brazil of $109 million at June 30, 2020 and $134 million at Dec. 31, 2019 . Assets and liabilities measured at fair value on a nonrecurring basis Under certain circumstances, we make adjustments to the fair value of our assets, liabilities and unfunded lending-related commitments although they are not measured at fair value on an ongoing basis. Examples would be the recording of an impairment of an asset and non-readily marketable equity securities carried at cost with upward or downward adjustments. The following table presents the financial instruments carried on the consolidated balance sheet by caption and level in the fair value hierarchy as of June 30, 2020 and Dec. 31, 2019 . Assets measured at fair value on a nonrecurring basis June 30, 2020 Dec. 31, 2019 Total carrying value Total carrying value (in millions) Level 1 Level 2 Level 3 Level 1 Level 2 Level 3 Loans (a) $ — $ 53 $ — $ 53 $ — $ 58 $ — $ 58 Other assets (b) — 107 — 107 — 64 — 64 Total assets at fair value on a nonrecurring basis $ — $ 160 $ — $ 160 $ — $ 122 $ — $ 122 (a) The fair value of these loans decreased less than $1 million in the second quarter of 2020 and the fourth quarter of 2019, based on the fair value of the underlying collateral, as required by guidance in ASC 326, Financial Instruments – Credit Losses, with an offset to the allowance for credit losses. (b) Includes non-readily marketable equity securities carried at cost with upward or downward adjustments and other assets received in satisfaction of debt. Estimated fair value of financial instruments The following tables present the estimated fair value and the carrying amount of financial instruments not carried at fair value on the consolidated balance sheet at June 30, 2020 and Dec. 31, 2019 , by caption on the consolidated balance sheet and by the valuation hierarchy. Summary of financial instruments June 30, 2020 (in millions) Level 1 Level 2 Level 3 Total Carrying Assets: Interest-bearing deposits with the Federal Reserve and other central banks $ — $ 112,728 $ — $ 112,728 $ 112,728 Interest-bearing deposits with banks — 18,063 — 18,063 18,045 Federal funds sold and securities purchased under resale agreements — 36,638 — 36,638 36,638 Securities held-to-maturity 5,815 40,168 — 45,983 44,615 Loans (a) — 54,377 — 54,377 54,067 Other financial assets 4,776 1,165 — 5,941 5,941 Total $ 10,591 $ 263,139 $ — $ 273,730 $ 272,034 Liabilities: Noninterest-bearing deposits $ — $ 78,100 $ — $ 78,100 $ 78,100 Interest-bearing deposits — 226,917 — 226,917 227,370 Federal funds purchased and securities sold under repurchase agreements — 14,512 — 14,512 14,512 Payables to customers and broker-dealers — 25,012 — 25,012 25,012 Commercial paper — 665 — 665 665 Borrowings — 1,852 — 1,852 1,852 Long-term debt — 28,875 — 28,875 27,167 Total $ — $ 375,933 $ — $ 375,933 $ 374,678 (a) Does not include the leasing portfolio. Summary of financial instruments Dec. 31, 2019 (in millions) Level 1 Level 2 Level 3 Total estimated Carrying Assets: Interest-bearing deposits with the Federal Reserve and other central banks $ — $ 95,042 $ — $ 95,042 $ 95,042 Interest-bearing deposits with banks — 14,832 — 14,832 14,811 Federal funds sold and securities purchased under resale agreements — 30,182 — 30,182 30,182 Securities held-to-maturity 4,630 30,175 — 34,805 34,483 Loans (a) — 54,194 — 54,194 53,718 Other financial assets 4,830 1,233 — 6,063 6,063 Total $ 9,460 $ 225,658 $ — $ 235,118 $ 234,299 Liabilities: Noninterest-bearing deposits $ — $ 57,630 $ — $ 57,630 $ 57,630 Interest-bearing deposits — 200,846 — 200,846 201,836 Federal funds purchased and securities sold under repurchase agreements — 11,401 — 11,401 11,401 Payables to customers and broker-dealers — 18,758 — 18,758 18,758 Commercial paper — 3,959 — 3,959 3,959 Borrowings — 917 — 917 917 Long-term debt — 27,858 — 27,858 27,114 Total $ — $ 321,369 $ — $ 321,369 $ 321,615 (a) Does not include the leasing portfolio.

Fair value option

Fair value option	6 Months Ended
	Jun. 30, 2020
Fair Value Disclosures [Abstract]
Fair value option	Fair value option We elected fair value as an alternative measurement for selected financial assets and liabilities that are not otherwise required to be measured at fair value, including the assets and liabilities of consolidated investment management funds and certain long-term debt. The following table presents the assets and liabilities of consolidated investment management funds, at fair value. Assets and liabilities of consolidated investment management funds, at fair value June 30, 2020 Dec. 31, 2019 (in millions) Assets of consolidated investment management funds: Trading assets $ 450 $ 229 Other assets 10 16 Total assets of consolidated investment management funds $ 460 $ 245 Liabilities of consolidated investment management funds: Other liabilities 4 1 Total liabilities of consolidated investment management funds $ 4 $ 1 BNY Mellon values the assets and liabilities of its consolidated investment management funds using quoted prices for identical assets or liabilities in active markets or observable inputs such as quoted prices for similar assets or liabilities. Quoted prices for either identical or similar assets or liabilities in inactive markets may also be used. Accordingly, fair value best reflects the interests BNY Mellon holds in the economic performance of the consolidated investment management funds. Changes in the value of the assets and liabilities are recorded in the consolidated income statement as investment income of consolidated investment management funds and in the interest of investment management fund note holders, respectively. We have elected the fair value option on $240 million of long-term debt. The fair value of this long-term debt was $399 million at June 30, 2020 and $387 million at Dec. 31, 2019 . The long-term debt is valued using observable market inputs and is included in Level 2 of the valuation hierarchy. The following table presents the changes in fair value of long-term debt recorded in foreign exchange and other trading revenue in the consolidated income statement. Change in fair value of long-term debt (a) (in millions) 2Q20 1Q20 2Q19 YTD20 YTD19 Foreign exchange and other trading revenue $ (2 ) $ (10 ) $ (7 ) $ (12 ) $ (12 ) (a) The changes in fair value are approximately offset by an economic hedge included in foreign exchange and other trading revenue.

Derivative instruments

Derivative instruments	6 Months Ended
	Jun. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative instruments	Derivative instruments We use derivatives to manage exposure to market risk, including interest rate risk, equity price risk and foreign currency risk, as well as credit risk. Our trading activities are focused on acting as a market-maker for our customers and facilitating customer trades in compliance with the Volcker Rule. The notional amounts for derivative financial instruments express the dollar volume of the transactions; however, credit risk is much smaller. We perform credit reviews and enter into netting agreements and collateral arrangements to minimize the credit risk of derivative financial instruments. We enter into offsetting positions to reduce exposure to foreign currency, interest rate and equity price risk. Use of derivative financial instruments involves reliance on counterparties. Failure of a counterparty to honor its obligation under a derivative contract is a risk we assume whenever we engage in a derivative contract. There were no counterparty default losses recorded in the second quarter of 2020 . Hedging derivatives We utilize interest rate swap agreements to manage our exposure to interest rate fluctuations. We enter into fair value hedges as an interest rate risk management strategy to reduce fair value variability by converting certain fixed rate interest payments associated with available-for-sale securities and long-term debt to floating interest rates. We also utilize interest rate swaps and forward exchange contracts as cash flow hedges to manage our exposure to interest rate and foreign exchange rate changes. The available-for-sale securities hedged consist of U.S. Treasury, agency and non-agency commercial MBS, sovereign debt/sovereign guaranteed, corporate bonds and foreign covered bonds. At June 30, 2020 , $13.9 billion par value of available-for-sale securities were hedged with interest rate swaps designated as fair value hedges that had notional values of $13.9 billion . The fixed rate long-term debt instruments hedged generally have original maturities of five to 30 years . In fair value hedging relationships, debt is hedged with “receive fixed rate, pay variable rate” swaps. At June 30, 2020 , $13.9 billion par value of debt was hedged with interest rate swaps designated as fair value hedges that had notional values of $13.9 billion . In addition, we utilize forward foreign exchange contracts as hedges to mitigate foreign exchange exposures. We use forward foreign exchange contracts as cash flow hedges to convert certain forecasted non-U.S. dollar revenue and expenses into U.S. dollars. We use forward foreign exchange contracts with maturities of 12 months or less as cash flow hedges to hedge our foreign exchange exposure to currencies such as Indian rupee, British pound, Hong Kong dollar, Singapore dollar and Polish zloty used in revenue and expense transactions for entities that have the U.S. dollar as their functional currency. As of June 30, 2020 , the hedged forecasted foreign currency transactions and designated forward foreign exchange contract hedges were $312 million (notional), with a pre-tax loss of $3 million recorded in accumulated OCI. This loss will be reclassified to earnings over the next 12 months . We also utilize forward foreign exchange contracts as fair value hedges of the foreign exchange risk associated with available-for-sale securities. Forward points are designated as an excluded component and amortized into earnings over the hedge period. The unamortized derivative value associated with the excluded component is recognized in accumulated OCI. At June 30, 2020 , $131 million par value of available-for-sale securities was hedged with foreign currency forward contracts that had a notional value of $131 million . Forward foreign exchange contracts are also used to hedge the value of our net investments in foreign subsidiaries. These forward foreign exchange contracts have maturities of less than one year . The derivatives employed are designated as hedges of changes in value of our foreign investments due to exchange rates. The change in fair market value of these forward foreign exchange contracts is reported within foreign currency translation adjustments in shareholders’ equity, net of tax. At June 30, 2020 , forward foreign exchange contracts with notional amounts totaling $7.6 billion were designated as net investment hedges. In addition to forward foreign exchange contracts, we also designate non-derivative financial instruments as hedges of our net investments in foreign subsidiaries. Those non-derivative financial instruments designated as hedges of our net investments in foreign subsidiaries were all long-term liabilities of BNY Mellon and, at June 30, 2020 , had a combined U.S. dollar equivalent carrying value of $172 million . The following table presents the pre-tax gains (losses) related to our fair value and cash flow hedging activities recognized in the consolidated income statement. Income statement impact of fair value and cash flow hedges (in millions) Location of gains (losses) 2Q20 1Q20 2Q19 YTD20 YTD19 Interest rate fair value hedges of available-for-sale securities Derivative Interest revenue $ 19 $ (1,033 ) $ (486 ) $ (1,014 ) $ (869 ) Hedged item Interest revenue (15 ) 1,011 480 996 856 Interest rate fair value hedges of long-term debt Derivative Interest expense 47 714 300 761 485 Hedged item Interest expense (49 ) (708 ) (298 ) (757 ) (482 ) Foreign exchange fair value hedges of available-for-sale securities Derivative (a) Other revenue 5 7 (5 ) 12 1 Hedged item Other revenue (5 ) (7 ) 5 (12 ) — Cash flow hedges of forecasted FX exposures (Loss) gain reclassified from OCI into income Staff expense (3 ) 1 — (2 ) (1 ) (Loss) recognized in the consolidated income statement due to fair value and cash flow hedging relationships $ (1 ) $ (15 ) $ (4 ) $ (16 ) $ (10 ) (a) Includes gains of less than $1 million in the second quarter of 2020 and first quarter of 2020 , a de minimis gain in the second quarter of 2019 , a gain of less than $1 million in the first six months of 2020 and a gain of $1 million in the first six months of 2019 associated with the amortization of the excluded component. At June 30, 2020 and Dec. 31, 2019 , the remaining accumulated OCI balance associated with the excluded component was de minimis. The following table presents the impact of hedging derivatives used in net investment hedging relationships. Impact of derivative instruments used in net investment hedging relationships (in millions) Derivatives in net investment hedging relationships Gain or (loss) recognized in accumulated OCI on derivatives Location of gain or (loss) reclassified from accumulated OCI into income Gain or (loss) reclassified from accumulated OCI into income 2Q20 1Q20 2Q19 YTD20 YTD19 2Q20 1Q20 2Q19 YTD20 YTD19 FX contracts $ (45 ) $ 437 $ 76 $ 392 $ 70 Net interest revenue $ — $ — $ — $ — $ — The following table presents information on the hedged items in fair value hedging relationships. Hedged items in fair value hedging relationships Carrying amount of hedged asset or liability Hedge accounting basis adjustment increase (decrease) (a) (in millions) June 30, 2020 Dec. 31, 2019 June 30, 2020 Dec. 31, 2019 Available-for-sale securities (b)(c) $ 13,952 $ 13,792 $ 1,817 $ 687 Long-term debt $ 14,956 $ 13,945 $ 919 $ 116 (a) Includes $196 million and $53 million of basis adjustment increases on discontinued hedges associated with available-for-sale securities at June 30, 2020 and Dec. 31, 2019 , respectively, and $156 million and $200 million of basis adjustment decreases on discontinued hedges associated with long-term debt at June 30, 2020 and Dec. 31, 2019 , respectively. (b) Excludes hedged items where only foreign currency risk is the designated hedged risk, as the basis adjustments related to foreign currency hedges will not reverse through the consolidated income statement in future periods. The carrying amount excluded for available-for-sale securities was $131 million at June 30, 2020 and $142 million at Dec. 31, 2019 . (c) Carrying amount represents the amortized cost. The following table summarizes the notional amount and carrying values of our total derivative portfolio at June 30, 2020 and Dec. 31, 2019 . Impact of derivative instruments on the balance sheet Notional value Asset derivatives fair value Liability derivatives fair value June 30, 2020 Dec. 31, 2019 June 30, 2020 Dec. 31, 2019 June 30, 2020 Dec. 31, 2019 (in millions) Derivatives designated as hedging instruments: (a)(b) Interest rate contracts $ 27,775 $ 28,365 $ — $ — $ 915 $ 350 Foreign exchange contracts 8,040 8,390 137 21 49 257 Total derivatives designated as hedging instruments $ 137 $ 21 $ 964 $ 607 Derivatives not designated as hedging instruments: (b)(c) Interest rate contracts $ 217,613 $ 306,790 $ 5,501 $ 3,690 $ 4,668 $ 3,250 Foreign exchange contracts 781,991 848,961 4,322 5,331 4,036 5,340 Equity contracts 1,657 3,189 13 19 22 5 Credit contracts 165 165 — — 2 4 Total derivatives not designated as hedging instruments $ 9,836 $ 9,040 $ 8,728 $ 8,599 Total derivatives fair value (d) $ 9,973 $ 9,061 $ 9,692 $ 9,206 Effect of master netting agreements (e) (5,640 ) (5,819 ) (5,817 ) (5,415 ) Fair value after effect of master netting agreements $ 4,333 $ 3,242 $ 3,875 $ 3,791 (a) The fair value of asset derivatives and liability derivatives designated as hedging instruments is recorded as other assets and other liabilities, respectively, on the consolidated balance sheet. (b) For derivative transactions settled at clearing organizations, cash collateral exchanged is deemed a settlement of the derivative each day. The settlement reduces the gross fair value of derivative assets and liabilities and results in a corresponding decrease in the effect of master netting agreements, with no impact to the consolidated balance sheet. (c) The fair value of asset derivatives and liability derivatives not designated as hedging instruments is recorded as trading assets and trading liabilities, respectively, on the consolidated balance sheet. (d) Fair values are on a gross basis, before consideration of master netting agreements, as required by ASC 815, Derivatives and Hedging. (e) Effect of master netting agreements includes cash collateral received and paid of $869 million and $1,046 million , respectively, at June 30, 2020 , and $1,022 million and $618 million , respectively, at Dec. 31, 2019 . Trading activities (including trading derivatives) Our trading activities are focused on acting as a market-maker for our customers, facilitating customer trades and risk mitigating economic hedging in compliance with the Volcker Rule. The change in the fair value of the derivatives utilized in our trading activities is recorded in foreign exchange and other trading revenue on the consolidated income statement. The following table presents our foreign exchange and other trading revenue. Foreign exchange and other trading revenue (in millions) 2Q20 1Q20 2Q19 YTD20 YTD19 Foreign exchange $ 174 $ 253 $ 150 $ 427 $ 310 Other trading (loss) revenue (8 ) 66 16 58 26 Total foreign exchange and other trading revenue $ 166 $ 319 $ 166 $ 485 $ 336 Foreign exchange revenue includes income from purchasing and selling foreign currencies and currency forwards, futures and options. Other trading revenue reflects results from trading in cash instruments, including fixed income and equity securities and non-foreign exchange derivatives. We also use derivative financial instruments as risk mitigating economic hedges, which are not formally designated as accounting hedges. This includes hedging the foreign currency, interest rate or market risks inherent in some of our balance sheet exposures, such as seed capital investments and deposits, as well as certain investment management fee revenue streams. We also use total return swaps to economically hedge obligations arising from the Company’s deferred compensation plan whereby the participants defer compensation and earn a return linked to the performance of investments they select. The gains or losses on these total return swaps are recorded in staff expense on the consolidated income statement and were gains of $28 million in the second quarter of 2020 and $5 million in the second quarter of 2019 , losses of $41 million in the first quarter of 2020 and $13 million in the first six months of 2020 and a gain of $23 million in the first six months of 2019 . We manage trading risk through a system of position limits, a value-at-risk (“VaR”) methodology based on historical simulation and other market sensitivity measures. Risk is monitored and reported to senior management by a separate unit, independent from trading, on a daily basis. Based on certain assumptions, the VaR methodology is designed to capture the potential overnight pre-tax dollar loss from adverse changes in fair values of all trading positions. The calculation assumes a one-day holding period, utilizes a 99% confidence level and incorporates non-linear product characteristics. The VaR model is one of several statistical models used to develop economic capital results, which are allocated to lines of business for computing risk-adjusted performance. VaR methodology does not evaluate risk attributable to extraordinary financial, economic or other occurrences. As a result, the risk assessment process includes a number of stress scenarios based upon the risk factors in the portfolio and management’s assessment of market conditions. Additional stress scenarios based upon historical market events are also performed. Stress tests may incorporate the impact of reduced market liquidity and the breakdown of historically observed correlations and extreme scenarios. VaR and other statistical measures, stress testing and sensitivity analysis are incorporated into other risk management materials. Counterparty credit risk and collateral We assess the credit risk of our counterparties through regular examination of their financial statements, confidential communication with the management of those counterparties and regular monitoring of publicly available credit rating information. This and other information is used to develop proprietary credit rating metrics used to assess credit quality. Collateral requirements are determined after a comprehensive review of the credit quality of each counterparty. Collateral is generally held or pledged in the form of cash and/or highly liquid government securities. Collateral requirements are monitored and adjusted daily. Additional disclosures concerning derivative financial instruments are provided in Note 15. Disclosure of contingent features in over-the-counter (“OTC”) derivative instruments Certain OTC derivative contracts and/or collateral agreements contain credit-risk contingent features triggered upon a rating downgrade in which the counterparty has the right to request additional collateral or the right to terminate the contracts in a net liability position. The following table shows the aggregate fair value of OTC derivative contracts in net liability positions that contained credit-risk contingent features and the value of collateral that has been posted. June 30, 2020 Dec. 31, 2019 (in millions) Aggregate fair value of OTC derivatives in net liability positions (a) $ 5,951 $ 3,442 Collateral posted $ 6,372 $ 3,671 (a) Before consideration of cash collateral. The aggregate fair value of OTC derivative contracts containing credit-risk contingent features can fluctuate from quarter to quarter due to changes in market conditions, composition of counterparty trades, new business or changes to the contingent features. The Bank of New York Mellon, our largest banking subsidiary, enters into the substantial majority of our OTC derivative contracts and/or collateral agreements. As such, the contingent features may be triggered if The Bank of New York Mellon’s long-term issuer rating was downgraded. The following table shows the fair value of contracts falling under early termination provisions that were in net liability positions for three key ratings triggers. Potential close-out exposures (fair value) (a) June 30, 2020 Dec. 31, 2019 (in millions) If The Bank of New York Mellon’s rating changed to: (b) A3/A- $ 31 $ 56 Baa2/BBB $ 558 $ 608 Ba1/BB+ $ 2,981 $ 2,084 (a) The amounts represent potential total close-out values if The Bank of New York Mellon’s long-term issuer rating were to immediately drop to the indicated levels, and do not reflect collateral posted. (b) Represents ratings by Moody’s/S&P. If The Bank of New York Mellon’s debt rating had fallen below investment grade on June 30, 2020 and Dec. 31, 2019 , existing collateral arrangements would have required us to post additional collateral of $31 million and $63 million , respectively. Offsetting assets and liabilities The following tables present derivative and financial instruments and their related offsets. There were no derivative instruments or financial instruments subject to a legally enforceable netting agreement for which we are not currently netting. Offsetting of derivative assets and financial assets at June 30, 2020 Gross assets recognized Gross amounts offset in the balance sheet Net assets recognized in the balance sheet Gross amounts not offset in the balance sheet (in millions) (a) Financial instruments Cash collateral received Net amount Derivatives subject to netting arrangements: Interest rate contracts $ 3,549 $ 2,436 $ 1,113 $ 384 $ — $ 729 Foreign exchange contracts 4,026 3,204 822 7 — 815 Equity and other contracts 9 — 9 1 — 8 Total derivatives subject to netting arrangements 7,584 5,640 1,944 392 — 1,552 Total derivatives not subject to netting arrangements 2,389 — 2,389 — — 2,389 Total derivatives 9,973 5,640 4,333 392 — 3,941 Reverse repurchase agreements 72,781 48,615 (b) 24,166 24,140 — 26 Securities borrowing 12,472 — 12,472 11,843 — 629 Total $ 95,226 $ 54,255 $ 40,971 $ 36,375 $ — $ 4,596 (a) Includes the effect of netting agreements and net cash collateral received. The offset related to the OTC derivatives was allocated to the various types of derivatives based on the net positions. (b) Offsetting of reverse repurchase agreements relates to our involvement in the Fixed Income Clearing Corporation (“FICC”), where we settle government securities transactions on a net basis for payment and delivery through the Fedwire system. Offsetting of derivative assets and financial assets at Dec. 31, 2019 Gross assets recognized Gross amounts offset in the balance sheet Net assets recognized in the balance sheet Gross amounts not offset in the balance sheet (in millions) (a) Financial instruments Cash collateral received Net amount Derivatives subject to netting arrangements: Interest rate contracts $ 2,394 $ 1,792 $ 602 $ 207 $ — $ 395 Foreign exchange contracts 4,861 4,021 840 44 — 796 Equity and other contracts 9 6 3 — — 3 Total derivatives subject to netting arrangements 7,264 5,819 1,445 251 — 1,194 Total derivatives not subject to netting arrangements 1,797 — 1,797 — — 1,797 Total derivatives 9,061 5,819 3,242 251 — 2,991 Reverse repurchase agreements 112,355 93,794 (b) 18,561 18,554 — 7 Securities borrowing 11,621 — 11,621 11,278 — 343 Total $ 133,037 $ 99,613 $ 33,424 $ 30,083 $ — $ 3,341 (a) Includes the effect of netting agreements and net cash collateral received. The offset related to the OTC derivatives was allocated to the various types of derivatives based on the net positions. (b) Offsetting of reverse repurchase agreements relates to our involvement in the FICC, where we settle government securities transactions on a net basis for payment and delivery through the Fedwire system. Offsetting of derivative liabilities and financial liabilities at June 30, 2020 Net liabilities recognized in the balance sheet Gross liabilities recognized Gross amounts offset in the balance sheet Gross amounts not offset in the balance sheet (in millions) (a) Financial instruments Cash collateral pledged Net amount Derivatives subject to netting arrangements: Interest rate contracts $ 5,563 $ 2,680 $ 2,883 $ 2,849 $ — $ 34 Foreign exchange contracts 3,690 3,134 556 150 — 406 Equity and other contracts 22 3 19 — — 19 Total derivatives subject to netting arrangements 9,275 5,817 3,458 2,999 — 459 Total derivatives not subject to netting arrangements 417 — 417 — — 417 Total derivatives 9,692 5,817 3,875 2,999 — 876 Repurchase agreements 59,794 48,615 (b) 11,179 11,175 — 4 Securities lending 982 — 982 962 — 20 Total $ 70,468 $ 54,432 $ 16,036 $ 15,136 $ — $ 900 (a) Includes the effect of netting agreements and net cash collateral paid. The offset related to the OTC derivatives was allocated to the various types of derivatives based on the net positions. (b) Offsetting of repurchase agreements relates to our involvement in the FICC, where we settle government securities transactions on a net basis for payment and delivery through the Fedwire system. Offsetting of derivative liabilities and financial liabilities at Dec. 31, 2019 Net liabilities recognized in the balance sheet Gross liabilities recognized Gross amounts offset in the balance sheet Gross amounts not offset in the balance sheet (in millions) (a) Financial instruments Cash collateral pledged Net amount Derivatives subject to netting arrangements: Interest rate contracts $ 3,550 $ 1,986 $ 1,564 $ 1,539 $ — $ 25 Foreign exchange contracts 4,873 3,428 1,445 74 — 1,371 Equity and other contracts 5 1 4 2 — 2 Total derivatives subject to netting arrangements 8,428 5,415 3,013 1,615 — 1,398 Total derivatives not subject to netting arrangements 778 — 778 — — 778 Total derivatives 9,206 5,415 3,791 1,615 — 2,176 Repurchase agreements 104,451 93,794 (b) 10,657 10,657 — — Securities lending 718 — 718 694 — 24 Total $ 114,375 $ 99,209 $ 15,166 $ 12,966 $ — $ 2,200 (a) Includes the effect of netting agreements and net cash collateral paid. The offset related to the OTC derivatives was allocated to the various types of derivatives based on the net positions. (b) Offsetting of repurchase agreements relates to our involvement in the FICC, where we settle government securities transactions on a net basis for payment and delivery through the Fedwire system. Secured borrowings The following table presents the contract value of repurchase agreements and securities lending transactions accounted for as secured borrowings by the type of collateral provided to counterparties. Repurchase agreements and securities lending transactions accounted for as secured borrowings June 30, 2020 Dec. 31, 2019 Remaining contractual maturity Total Remaining contractual maturity Total (in millions) Overnight and continuous Up to 30 days 30 days or more Overnight and continuous Up to 30 days 30 days or more Repurchase agreements: U.S. Treasury $ 52,950 $ 300 $ 109 $ 53,359 $ 94,788 $ 10 $ — $ 94,798 U.S. government agencies 642 — — 642 594 16 — 610 Agency RMBS 1,384 — 149 1,533 4,234 774 — 5,008 Corporate bonds 195 23 1,272 1,490 266 236 1,617 2,119 Other debt securities 93 79 1,749 1,921 40 188 1,079 1,307 Equity securities — 98 751 849 31 99 479 609 Total $ 55,264 $ 500 $ 4,030 $ 59,794 $ 99,953 $ 1,323 $ 3,175 $ 104,451 Securities lending: U.S. government agencies $ 21 $ — $ — $ 21 $ 19 $ — $ — $ 19 Other debt securities 191 — — 191 201 — — 201 Equity securities 770 — — 770 498 — — 498 Total $ 982 $ — $ — $ 982 $ 718 $ — $ — $ 718 Total secured borrowings $ 56,246 $ 500 $ 4,030 $ 60,776 $ 100,671 $ 1,323 $ 3,175 $ 105,169 BNY Mellon’s repurchase agreements and securities lending transactions primarily encounter risk associated with liquidity. We are required to pledge collateral based on predetermined terms within the agreements. If we were to experience a decline in the fair value of the collateral pledged for these transactions, we could be required to provide additional collateral to the counterparty, therefore decreasing the amount of assets available for other liquidity needs that may arise. BNY Mellon also offers tri-party collateral agency services in the tri-party repo market where we are exposed to credit risk. In order to mitigate this risk, we require dealers to fully secure intraday credit.

Commitments and contingent liab

Commitments and contingent liabilities	6 Months Ended
	Jun. 30, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments and contingent liabilities	Commitments and contingent liabilities Off-balance sheet arrangements In the normal course of business, various commitments and contingent liabilities are outstanding that are not reflected in the accompanying consolidated balance sheets. Our significant trading and off-balance sheet risks are securities, foreign currency and interest rate risk management products, commercial lending commitments, letters of credit and securities lending indemnifications. We assume these risks to reduce interest rate and foreign currency risks, to provide customers with the ability to meet credit and liquidity needs and to hedge foreign currency and interest rate risks. These items involve, to varying degrees, credit, foreign currency and interest rate risks not recognized on the balance sheet. Our off-balance sheet risks are managed and monitored in manners similar to those used for on-balance sheet risks. The following table presents a summary of our off-balance sheet credit risks. Off-balance sheet credit risks June 30, 2020 Dec. 31, 2019 (in millions) Lending commitments $ 49,147 $ 49,119 Standby letters of credit (“SBLC”) (a) 2,291 2,298 Commercial letters of credit 59 74 Securities lending indemnifications (b)(c) 417,924 408,378 (a) Net of participations totaling $145 million at June 30, 2020 and $146 million at Dec. 31, 2019 . (b) Excludes the indemnification for securities for which BNY Mellon acts as an agent on behalf of CIBC Mellon clients, which totaled $58 billion at June 30, 2020 and $57 billion at Dec. 31, 2019 . (c) Includes cash collateral, invested in indemnified repurchase agreements, held by us as securities lending agent of $40 billion at June 30, 2020 and $37 billion at Dec. 31, 2019 . The total potential loss on undrawn lending commitments, standby and commercial letters of credit, and securities lending indemnifications is equal to the total notional amount if drawn upon, which does not consider the value of any collateral. Since many of the lending commitments are expected to expire without being drawn upon, the total amount does not necessarily represent future cash requirements. A summary of lending commitment maturities is as follows: $32.6 billion in less than one year, $16.2 billion in one to five years and $319 million over five years. SBLCs principally support obligations of corporate clients and were collateralized with cash and securities of $185 million at June 30, 2020 and $184 million at Dec. 31, 2019 . At June 30, 2020 , $1.7 billion of the SBLCs will expire within one year, $545 million in one to five years and $7 million over five years. We must recognize, at the inception of an SBLC and foreign and other guarantees, a liability for the fair value of the obligation undertaken in issuing the guarantee. The fair value of the liability, which was recorded with a corresponding asset in other assets, was estimated as the present value of contractual customer fees. The estimated liability for losses related to SBLCs and foreign and other guarantees, if any, is included in the allowance for lending-related commitments. Payment/performance risk of SBLCs is monitored using both historical performance and internal ratings criteria. BNY Mellon’s historical experience is that SBLCs typically expire without being funded. SBLCs below investment grade are monitored closely for payment/performance risk. The table below shows SBLCs by investment grade: Standby letters of credit June 30, 2020 Dec. 31, 2019 Investment grade 89 % 90 % Non-investment grade 11 % 10 % A commercial letter of credit is normally a short-term instrument used to finance a commercial contract for the shipment of goods from a seller to a buyer. Although the commercial letter of credit is contingent upon the satisfaction of specified conditions, it represents a credit exposure if the buyer defaults on the underlying transaction. As a result, the total contractual amounts do not necessarily represent future cash requirements. Commercial letters of credit totaled $59 million at June 30, 2020 and $74 million at Dec. 31, 2019 . We expect many of the lending commitments and letters of credit to expire without the need to advance any cash. The revenue associated with guarantees frequently depends on the credit rating of the obligor and the structure of the transaction, including collateral, if any. The allowance for lending-related commitments was $152 million at June 30, 2020 and $94 million at Dec. 31, 2019 . A securities lending transaction is a fully collateralized transaction in which the owner of a security agrees to lend the security (typically through an agent, in our case, The Bank of New York Mellon) to a borrower, usually a broker-dealer or bank, on an open, overnight or term basis, under the terms of a prearranged contract. We typically lend securities with indemnification against borrower default. We generally require the borrower to provide collateral with a minimum value of 102% of the fair value of the securities borrowed, which is monitored on a daily basis, thus reducing credit risk. Market risk can also arise in securities lending transactions. These risks are controlled through policies limiting the level of risk that can be undertaken. Securities lending transactions are generally entered into only with highly rated counterparties. Securities lending indemnifications were secured by collateral of $438 billion at June 30, 2020 and $428 billion at Dec. 31, 2019 . CIBC Mellon, a joint venture between BNY Mellon and the Canadian Imperial Bank of Commerce (“CIBC”), engages in securities lending activities. CIBC Mellon, BNY Mellon and CIBC jointly and severally indemnify securities lenders against specific types of borrower default. At June 30, 2020 and Dec. 31, 2019 , $58 billion and $57 billion , respectively, of borrowings at CIBC Mellon, for which BNY Mellon acts as agent on behalf of CIBC Mellon clients, were secured by collateral of $62 billion and $61 billion , respectively. If, upon a default, a borrower’s collateral was not sufficient to cover its related obligations, certain losses related to the indemnification could be covered by the indemnitors. Unsettled repurchase and reverse repurchase agreements In the normal course of business, we enter into repurchase agreements and reverse repurchase agreements that settle at a future date. In repurchase agreements, BNY Mellon receives cash from and provides securities as collateral to a counterparty at settlement. In reverse repurchase agreements, BNY Mellon advances cash to and receives securities as collateral from the counterparty at settlement. These transactions are recorded on the consolidated balance sheet on the settlement date. At June 30, 2020 , we had no unsettled repurchase agreements and no unsettled reverse repurchase agreements. Industry concentrations We have significant industry concentrations related to credit exposure at June 30, 2020 . The tables below present our credit exposure in the financial institutions and commercial portfolios. Financial institutions portfolio exposure (in billions) June 30, 2020 Loans Unfunded commitments Total exposure Securities industry $ 1.6 $ 24.5 $ 26.1 Banks 7.0 1.1 8.1 Asset managers 1.3 6.3 7.6 Insurance 0.1 2.7 2.8 Government 0.1 0.2 0.3 Other 0.7 0.7 1.4 Total $ 10.8 $ 35.5 $ 46.3 Commercial portfolio exposure (in billions) June 30, 2020 Loans Unfunded commitments Total exposure Manufacturing $ 1.1 $ 3.5 $ 4.6 Services and other 1.1 3.3 4.4 Energy and utilities 0.1 4.1 4.2 Media and telecom 0.1 0.9 1.0 Total $ 2.4 $ 11.8 $ 14.2 Major concentrations in securities lending are primarily to broker-dealers and are generally collateralized with cash and/or securities. Sponsored Member Repo Program BNY Mellon is a sponsoring member in the FICC sponsored member program, where we submit eligible overnight repurchase and reverse repurchase transactions in U.S. Treasury securities (“Sponsored Member Transactions”) between BNY Mellon and our sponsored member clients for novation and clearing through FICC pursuant to the FICC Government Securities Division rulebook (the “FICC Rules”). We also guarantee to FICC the prompt and full payment and performance of our sponsored member clients’ respective obligations under the FICC Rules in connection with such clients’ Sponsored Member Transactions. We minimize our credit exposure under this guaranty by obtaining a security interest in our sponsored member clients’ collateral and rights under Sponsored Member Transactions. See “Offsetting assets and liabilities” in Note 17 for additional information on our repurchase and reverse repurchase agreements. Indemnification arrangements We have provided standard representations for underwriting agreements, acquisition and divestiture agreements, sales of loans and commitments, and other similar types of arrangements and customary indemnification for claims and legal proceedings related to providing financial services that are not otherwise included above. Insurance has been purchased to mitigate certain of these risks. Generally, there are no stated or notional amounts included in these indemnifications and the contingencies triggering the obligation for indemnification are not expected to occur. Furthermore, often counterparties to these transactions provide us with comparable indemnifications. We are unable to develop an estimate of the maximum payout under these indemnifications for several reasons. In addition to the lack of a stated or notional amount in a majority of such indemnifications, we are unable to predict the nature of events that would trigger indemnification or the level of indemnification for a certain event. We believe, however, that the possibility that we will have to make any material payments for these indemnifications is remote. At June 30, 2020 and Dec. 31, 2019 , we have not recorded any material liabilities under these arrangements. Clearing and settlement exchanges We are a noncontrolling equity investor in, and/or member of, several industry clearing or settlement exchanges through which foreign exchange, securities, derivatives or other transactions settle. Certain of these industry clearing and settlement exchanges require their members to guarantee their obligations and liabilities and/or to provide liquidity support in the event other members do not honor their obligations. We believe the likelihood that a clearing or settlement exchange (of which we are a member) would become insolvent is remote. Additionally, certain settlement exchanges have implemented loss allocation policies that enable the exchange to allocate settlement losses to the members of the exchange. It is not possible to quantify such mark-to-market loss until the loss occurs. Any ancillary costs that occur as a result of any mark-to-market loss cannot be quantified. In addition, we also sponsor clients as members on clearing and settlement exchanges and guarantee their obligations. At June 30, 2020 and Dec. 31, 2019 , we did not record any material liabilities under these arrangements. Legal proceedings In the ordinary course of business, The Bank of New York Mellon Corporation and its subsidiaries are routinely named as defendants in or made parties to pending and potential legal actions. We also are subject to governmental and regulatory examinations, information-gathering requests, investigations and proceedings (both formal and informal). Claims for significant monetary damages are often asserted in many of these legal actions, while claims for disgorgement, restitution, penalties and/or other remedial actions or sanctions may be sought in governmental and regulatory matters. It is inherently difficult to predict the eventual outcomes of such matters given their complexity and the particular facts and circumstances at issue in each of these matters. However, on the basis of our current knowledge and understanding, we do not believe that judgments, settlements or orders, if any, arising from these matters (either individually or in the aggregate, after giving effect to applicable reserves and insurance coverage) will have a material adverse effect on the consolidated financial position or liquidity of BNY Mellon, although they could have a material effect on our results of operations in a given period. In view of the inherent unpredictability of outcomes in litigation and regulatory matters, particularly where (i) the damages sought are substantial or indeterminate, (ii) the proceedings are in the early stages, or (iii) the matters involve novel legal theories or a large number of parties, as a matter of course there is considerable uncertainty surrounding the timing or ultimate resolution of litigation and regulatory matters, including a possible eventual loss, fine, penalty or business impact, if any, associated with each such matter. In accordance with applicable accounting guidance, we establish accruals for litigation and regulatory matters when those matters proceed to a stage where they present loss contingencies that are both probable and reasonably estimable. In such cases, there may be a possible exposure to loss in excess of any amounts accrued. We regularly monitor such matters for developments that could affect the amount of the accrual, and will adjust the accrual amount as appropriate. If the loss contingency in question is not both probable and reasonably estimable, we do not establish an accrual and the matter continues to be monitored for any developments that would make the loss contingency both probable and reasonably estimable. We believe that our accruals for legal proceedings are appropriate and, in the aggregate, are not material to the consolidated financial position of BNY Mellon, although future accruals could have a material effect on the results of operations in a given period. In addition, if we have the potential to recover a portion of an estimated loss from a third party, we record a receivable up to the amount of the accrual that is probable of recovery. For certain of those matters described here for which a loss contingency may, in the future, be reasonably possible (whether in excess of a related accrued liability or where there is no accrued liability), BNY Mellon is currently unable to estimate a range of reasonably possible loss. For those matters described here where BNY Mellon is able to estimate a reasonably possible loss, the aggregate range of such reasonably possible loss is up to $730 million in excess of the accrued liability (if any) related to those matters. For matters where a reasonably possible loss is denominated in a foreign currency, our estimate is adjusted quarterly based on prevailing exchange rates. We do not consider potential recoveries when estimating reasonably possible losses. The following describes certain judicial, regulatory and arbitration proceedings involving BNY Mellon: Mortgage-Securitization Trusts Proceedings The Bank of New York Mellon has been named as a defendant in a number of legal actions brought by MBS investors alleging that the trustee has expansive duties under the governing agreements, including the duty to investigate and pursue breach of representation and warranty claims against other parties to the MBS transactions. Four actions commenced in August 2014, December 2014, December 2015 and February 2017 are pending in New York federal court; and one action commenced in May 2016 is pending in New York state court. Matters Related to R. Allen Stanford In late December 2005, Pershing LLC (“Pershing”) became a clearing firm for Stanford Group Co. (“SGC”), a registered broker-dealer that was part of a group of entities ultimately controlled by R. Allen Stanford (“Stanford”). Stanford International Bank (“SIB”), also controlled by Stanford, issued certificates of deposit (“CDs”). Some investors allegedly wired funds from their SGC accounts to purchase CDs. In 2009, the Securities and Exchange Commission (“SEC”) charged Stanford with operating a Ponzi scheme in connection with the sale of CDs, and SGC was placed into receivership. Alleged purchasers of CDs have filed two putative class action proceedings against Pershing: one in November 2009 in Texas federal court, and one in May 2016 in New Jersey federal court. Thirteen lawsuits have been filed against Pershing in Louisiana, Florida and New Jersey federal courts in January 2010, January and February 2015, October 2015 and May 2016. The purchasers allege that Pershing, as SGC’s clearing firm, assisted Stanford in a fraudulent scheme and assert contractual, statutory and common law claims. In March 2019, a group of investors filed a putative class action against The Bank of New York Mellon in New Jersey federal court, making the same allegations as in the prior actions brought against Pershing. All of the cases that have been brought in federal court against Pershing and the case brought against The Bank of New York Mellon have been consolidated in Texas federal court for discovery purposes. On Dec. 19, 2019, the Court of Appeals for the Fifth Circuit affirmed the dismissal of six individual federal lawsuits brought under Florida law, which will also apply to four other similarly situated cases. On March 18, 2020, the plaintiffs in those lawsuits filed a Petition for Writ of Certiorari seeking permission to appeal to the United States Supreme Court. Financial Industry Regulatory Authority, Inc. (“FINRA”) arbitration proceedings also have been initiated by alleged purchasers asserting similar claims. Brazilian Postalis Litigation BNY Mellon Servicos Financeiros DTVM S.A. (“DTVM”), a subsidiary that provides asset services in Brazil, acts as administrator for certain investment funds in which a public pension fund for postal workers called Postalis-Instituto de Seguridade Social dos Correios e Telégrafos (“Postalis”) invested. On Aug. 22, 2014, Postalis sued DTVM in Rio de Janeiro, Brazil for losses related to a Postalis fund for which DTVM is administrator. Postalis alleges that DTVM failed to properly perform duties, including to conduct due diligence of and exert control over the manager. On March 12, 2015, Postalis filed a lawsuit in Rio de Janeiro against DTVM and BNY Mellon Administração de Ativos Ltda. (“Ativos”) alleging failure to properly perform duties relating to another fund of which DTVM is administrator and Ativos is manager. On Dec. 14, 2015, Associacão dos Profissionais dos Correios (“ADCAP”), a Brazilian postal workers association, filed a lawsuit in São Paulo against DTVM and other defendants alleging that DTVM improperly contributed to Postalis investment losses. On March 20, 2017, the lawsuit was dismissed without prejudice, and ADCAP has appealed that decision. On Dec. 17, 2015, Postalis filed three lawsuits in Rio de Janeiro against DTVM and Ativos alleging failure to properly perform duties with respect to investments in several other funds. On Feb. 4, 2016, Postalis filed a lawsuit in Brasilia against DTVM, Ativos and BNY Mellon Alocação de Patrimônio Ltda. (“Alocação de Patrimônio”), an investment management subsidiary, alleging failure to properly perform duties and liability for losses with respect to investments in various funds of which the defendants were administrator and/or manager. On Jan. 16, 2018, the Brazilian Federal Prosecution Service (“MPF”) filed a civil lawsuit in São Paulo against DTVM alleging liability for Postalis losses based on alleged failures to properly perform certain duties as administrator to certain funds in which Postalis invested or as controller of Postalis’s own investment portfolio. On April 18, 2018, the court dismissed the lawsuit without prejudice, and the MPF has appealed that decision. In addition, the Tribunal de Contas da Uniao, an administrative tribunal, has initiated two proceedings with the purpose of determining liability for losses to two investment funds administered by DTVM in which Postalis was the exclusive investor. On Oct. 4, 2019, Postalis and another pension fund filed a request for arbitration in São Paulo against DTVM and Ativos alleging liability for losses to an investment fund for which DTVM was administrator and Ativos was manager. On Oct. 25, 2019, Postalis filed a lawsuit in Rio de Janeiro against DTVM and Alocação de Patrimônio, alleging liability for losses in another fund for which DTVM was administrator and Alocação de Patrimônio and Ativos were managers. Brazilian Silverado Litigation DTVM acts as administrator for the Fundo de Investimento em Direitos Creditórios Multisetorial Silverado Maximum (“Silverado Maximum Fund”), which invests in commercial credit receivables. On June 2, 2016, the Silverado Maximum Fund sued DTVM in its capacity as administrator, along with Deutsche Bank S.A. - Banco Alemão in its capacity as custodian and Silverado Gestão e Investimentos Ltda. in its capacity as investment manager. The Fund alleges that each of the defendants failed to fulfill its respective duty, and caused losses to the Fund for which the defendants are jointly and severally liable. German Tax Matters German authorities are investigating past “cum/ex” trading, which involved the purchase of equity securities on or shortly before the dividend date, but settled after that date, potentially resulting in an unwarranted refund of withholding tax. German authorities have taken the view that past cum/ex trading may have resulted in tax avoidance or evasion. European subsidiaries of BNY Mellon have been informed by German authorities about investigations into potential cum/ex trading by certain third-party investment funds, where one of the subsidiaries had acquired entities that served as depositary and/or fund manager for those third-party investment funds. We have received information requests from the authorities relating to pre-acquisition activity and are cooperating fully with those requests. We have not received any tax demand concerning cum/ex trading. In August 2019, the District Court of Bonn ordered that one of these subsidiaries be joined as a secondary party in connection with the prosecution of unrelated individual defendants. Trial commenced in September 2019. In March 2020, the court stated that it would refrain from taking action against the subsidiary in order to expedite the conclusion of the trial. The court convicted the unrelated individual defendants, and determined that the cum/ex trading activities of the relevant third-party investment funds were unlawful. In connection with the acquisition of the subject entities, we obtained an indemnity for liabilities from the sellers that we intend to pursue as necessary.

Lines of business

Lines of business	6 Months Ended
	Jun. 30, 2020
Segment Reporting [Abstract]
Lines of business	Lines of business We have an internal information system that produces performance data along product and service lines for our two principal businesses and the Other segment. The primary products and services and types of revenue for our principal businesses and a description of the Other segment are presented in Note 24 of the Notes to Consolidated Financial Statements in our 2019 Annual Report. Business accounting principles Our business data has been determined on an internal management basis of accounting, rather than the generally accepted accounting principles used for consolidated financial reporting. These measurement principles are designed so that reported results of the businesses will track their economic performance. Business results are subject to reclassification when organizational changes are made. There were no significant organizational changes in the second quarter of 2020. The results are also subject to refinements in revenue and expense allocation methodologies, which are typically reflected on a prospective basis. In the first quarter of 2020, we reclassified the results of certain services provided between the segments from noninterest expense to fee and other revenue. This activity is offset in the Other segment and relates to services that are also provided to third parties and provides consistency with the reporting of the revenues. This adjustment had no impact on income before taxes of the businesses. Also in the first quarter of 2020, we reclassified the results related to certain lending activities from the Wealth Management business to the Pershing business. These loans were originated by the Wealth Management business as a service to Pershing clients. This resulted in an increase in total revenue, noninterest expense and income before taxes in the Pershing business and corresponding decrease in the Wealth Management business. Prior periods were restated in the first quarter of 2020 for both reclassifications. The accounting policies of the businesses are the same as those described in Note 1 of the Notes to Consolidated Financial Statements in our 2019 Annual Report. The results of our businesses are presented and analyzed on an internal management reporting basis. • Revenue amounts reflect fee and other revenue generated by each business and include revenue for services provided between the segments that are also provided to third parties. Fee and other revenue transferred between businesses under revenue transfer agreements is included within other revenue in each business. • Revenues and expenses associated with specific client bases are included in those businesses. For example, foreign exchange activity associated with clients using custody products is included in Investment Services. • Net interest revenue is allocated to businesses based on the yields on the assets and liabilities generated by each business. We employ a funds transfer pricing system that matches funds with the specific assets and liabilities of each business based on their interest sensitivity and maturity characteristics. • The provision for credit losses associated with the respective credit portfolios is reflected in each business segment. • Incentives expense related to restricted stock is allocated to the businesses. • Support and other indirect expenses, including services provided between segments that are not provided to third parties or not subject to a revenue transfer agreement, are allocated to businesses based on internally developed methodologies and reflected in noninterest expense. • Recurring FDIC expense is allocated to the businesses based on average deposits generated within each business. • Litigation expense is generally recorded in the business in which the charge occurs. • Management of the securities portfolio is a shared service contained in the Other segment. As a result, gains and losses associated with the valuation of the securities portfolio are generally included in the Other segment. • Client deposits serve as the primary funding source for our securities portfolio. We typically allocate all interest revenue to the businesses generating the deposits. Accordingly, accretion related to the portion of the securities portfolio restructured in 2009 has been included in the results of the businesses. • Balance sheet assets and liabilities and their related income or expense are specifically assigned to each business. Businesses with a net liability position have been allocated assets. • Goodwill and intangible assets are reflected within individual businesses. The following consolidating schedules present the contribution of our businesses to our overall profitability. For the quarter ended June 30, 2020 Investment Investment and Wealth Other Consolidated (dollars in millions) Total fee and other revenue $ 2,339 $ 838 (a) $ 38 $ 3,215 (a) Net interest revenue (expense) 768 48 (36 ) 780 Total revenue 3,107 886 (a) 2 3,995 (a) Provision for credit losses 145 7 (9 ) 143 Noninterest expense 1,989 658 39 2,686 Income (loss) before income taxes $ 973 $ 221 (a) $ (28 ) $ 1,166 (a) Pre-tax operating margin (b) 31 % 25 % N/M 29 % Average assets $ 335,288 $ 30,327 $ 49,744 $ 415,359 (a) Total fee and other revenue includes net income from consolidated investment management funds of $39 million , representing $54 million of income and noncontrolling interests of $15 million . Total revenue and income before income taxes are net of noncontrolling interests of $15 million . (b) Income before income taxes divided by total revenue. N/M - Not meaningful. For the quarter ended March 31, 2020 Investment Investment and Wealth Other Consolidated (dollars in millions) Total fee and other revenue $ 2,436 $ 846 (a) $ 30 $ 3,312 (a) Net interest revenue (expense) 806 52 (44 ) 814 Total revenue (loss) 3,242 898 (a) (14 ) 4,126 (a) Provision for credit losses 149 9 11 169 Noninterest expense 1,987 695 30 2,712 Income (loss) before income taxes $ 1,106 $ 194 (a) $ (55 ) $ 1,245 (a) Pre-tax operating margin (b) 34 % 22 % N/M 30 % Average assets $ 304,089 $ 30,543 $ 50,646 $ 385,278 (a) Total fee and other revenue includes net loss from consolidated investment management funds of $20 million , representing $38 million of losses and a loss attributable to noncontrolling interests of $18 million . Total revenue and income before income taxes are net of a loss attributable to noncontrolling interests of $18 million . (b) Income before income taxes divided by total revenue. N/M - Not meaningful. For the quarter ended June 30, 2019 Investment Investment and Wealth Other Consolidated (dollars in millions) Total fee and other revenue $ 2,233 $ 854 (a) $ 31 $ 3,118 (a) Net interest revenue (expense) 783 59 (40 ) 802 Total revenue (loss) 3,016 913 (a) (9 ) 3,920 (a) Provision for credit losses (4 ) (2 ) (2 ) (8 ) Noninterest expense 1,963 655 29 2,647 Income (loss) before income taxes $ 1,057 $ 260 (a) $ (36 ) $ 1,281 (a) Pre-tax operating margin (b) 35 % 29 % N/M 33 % Average assets $ 264,781 $ 29,793 $ 47,810 $ 342,384 (a) Total fee and other revenue includes net income from consolidated investment management funds of $6 million , representing $10 million of income and noncontrolling interests of $4 million . Total revenue and income before income taxes are net of noncontrolling interests of $4 million . (b) Income before income taxes divided by total revenue. N/M - Not meaningful. For the six months ended June 30, 2020 Investment Investment and Wealth Other Consolidated (dollars in millions) Total fee and other revenue $ 4,775 $ 1,684 (a) $ 68 $ 6,527 (a) Net interest revenue (expense) 1,574 100 (80 ) 1,594 Total revenue (loss) 6,349 1,784 (a) (12 ) 8,121 (a) Provision for credit losses 294 16 2 312 Noninterest expense 3,976 1,353 69 5,398 Income (loss) before income taxes $ 2,079 $ 415 (a) $ (83 ) $ 2,411 (a) Pre-tax operating margin (b) 33 % 23 % N/M 30 % Average assets $ 319,689 $ 30,435 $ 50,194 $ 400,318 (a) Total fee and other revenue includes net income from consolidated investment management funds of $19 million , representing $16 million of income and a loss attributable to noncontrolling interests of $3 million . Total revenue and income before income taxes are net of a loss attributable to noncontrolling interests of $3 million . (b) Income before income taxes divided by total revenue. N/M - Not meaningful. For the six months ended June 30, 2019 Investment Investment and Wealth Other Consolidated (dollars in millions) Total fee and other revenue $ 4,394 $ 1,723 (a) $ 49 $ 6,166 (a) Net interest revenue (expense) 1,587 126 (70 ) 1,643 Total revenue (loss) 5,981 1,849 (a) (21 ) 7,809 (a) Provision for credit losses 4 (1 ) (4 ) (1 ) Noninterest expense 3,944 1,324 78 5,346 Income (loss) before income taxes $ 2,033 $ 526 (a) $ (95 ) $ 2,464 (a) Pre-tax operating margin (b) 34 % 28 % N/M 32 % Average assets $ 260,432 $ 30,819 $ 48,041 $ 339,292 (a) Total fee and other revenue includes net income from consolidated investment management funds of $22 million , representing $36 million of income and noncontrolling interests of $14 million . Total revenue and income before income taxes are net of noncontrolling interests of $14 million . (b) Income before income taxes divided by total revenue. N/M - Not meaningful.

Supplemental information to the

Supplemental information to the Consolidated Statement of Cash Flows	6 Months Ended
	Jun. 30, 2020
Supplemental Cash Flow Information [Abstract]
Supplemental information to the Consolidated Statement of Cash Flows	Supplemental information to the Consolidated Statement of Cash Flows Non-cash investing and financing transactions that, appropriately, are not reflected in the consolidated statement of cash flows are listed below. Non-cash investing and financing transactions Six months ended June 30, (in millions) 2020 2019 Change in assets of consolidated investment management funds $ 215 $ 76 Change in liabilities of consolidated investment management funds 3 4 Change in nonredeemable noncontrolling interests of consolidated investment management funds 10 65 Securities purchased not settled 1,730 1,113 Securities matured not settled — 10 Premises and equipment/capitalized software funded by finance lease obligations — 14 Premises and equipment/operating lease obligations 66 1,272 (a) Investment redemptions not settled — — (a) Includes $1,244 million related to the adoption of ASU 2016-02, Leases, and $28 million related to new or modified leases.

Basis of presentation (Policies

Basis of presentation (Policies)	6 Months Ended
	Jun. 30, 2020
Accounting Policies [Abstract]
Basis of presentation	Basis of presentation The accounting and financial reporting policies of BNY Mellon, a global financial services company, conform to U.S. generally accepted accounting principles (“GAAP”) and prevailing industry practices. For information on our significant accounting and reporting policies, see Note 1 in our 2019 Annual Report.
Reclassifications	Certain immaterial reclassifications have been made to prior periods to place them on a basis comparable with the current period presentation.
Use of estimates	Use of estimates
Fair value measurement	Fair value measurement Fair value is defined as the price that would be received to sell an asset, or paid to transfer a liability, in an orderly transaction between market participants at the measurement date. A three-level hierarchy for fair value measurements is utilized based upon the transparency of inputs to the valuation of an asset or liability as of the measurement date. BNY Mellon’s own creditworthiness is considered when valuing liabilities. See Note 20 of the Notes to Consolidated Financial Statements in our 2019 Annual Report for information on how we determine fair value and the fair value hierarchy. The following tables present the financial instruments carried at fair value at June 30, 2020 and Dec. 31, 2019 , by caption on the consolidated balance sheet and by the three-level valuation hierarchy. We have included credit ratings information in certain of the tables because the information indicates the degree of credit risk to which we are exposed, and significant changes in ratings classifications could result in increased risk for us.

Accounting changes and new ac_2

Accounting changes and new accounting guidance (Policies)	6 Months Ended
	Jun. 30, 2020
Accounting Policies [Abstract]
Loans	Loans Loans are reported at amortized cost, net of any unearned income and deferred fees and costs. Certain loan origination and upfront commitment fees, as well as certain direct loan origination and commitment costs, are deferred and amortized as a yield adjustment over the lives of the related loans. Loans held for sale are carried at the lower of cost or fair value.
Troubled debt restructuring/loan modifications	Troubled debt restructuring/loan modifications A modified loan is considered a troubled debt restructuring (“TDR”) if the debtor is experiencing financial difficulties and the creditor grants a concession to the debtor that would not otherwise be considered. A TDR may include a transfer of real estate or other assets from the debtor to the creditor, or a modification of the term of the loan. Credit losses related to TDRs are accounted for under an individual evaluation methodology (see “Allowance for credit losses” below). Credit losses for anticipated TDRs are accounted for similarly to TDRs and are identified when there is a reasonable expectation that a TDR will be executed with the borrower and when we expect the modification to affect the timing or amount of payments and/or the payment term. Due to the coronavirus pandemic, there have been two forms of relief provided for classifying loans as TDRs: The Coronavirus Aid, Relief, and Economic Security Act (the “CARES Act”) and the Interagency Guidance (as defined below). Financial institutions may account for eligible loan modifications either under the CARES Act or the Interagency Guidance. The Company has elected to apply both the CARES Act and the Interagency Guidance, as applicable, in providing borrowers with loan modification relief in response to the coronavirus pandemic. The CARES Act, which became law on March 27, 2020, provides that financial institutions may, subject to certain conditions, elect to temporarily suspend the U.S. GAAP requirements with respect to loan modifications related to the coronavirus pandemic that were current as of Dec. 31, 2019 and that would otherwise be identified and treated as TDRs. This TDR relief is applicable to modifications that were made from March 1, 2020 until the earlier of Dec. 31, 2020 or 60 days from the date the national emergency related to the coronavirus pandemic officially ends. Various banking regulators issued guidance in the April 7, 2020 “Interagency Statement on Loan Modifications and Reporting for Financial Institutions Working with Customers Affected by the Coronavirus (revised)” (“Interagency Guidance”) on loan modification treatment pursuant to which financial institutions can apply the U.S. GAAP requirements for loan modifications. In accordance with this guidance, a loan modification is not considered a TDR if the modification is related to the coronavirus pandemic, the borrower had been current when the modification program was implemented, and the modification includes payment deferrals for not more than 6 months.
Nonperforming assets	Nonperforming assets Commercial loans are placed on nonaccrual status when principal or interest is past due 90 days or more, or when there is reasonable doubt that interest or principal will be collected. When a first or second lien residential mortgage loan reaches 90 days delinquent, it is subject to an individual evaluation of credit loss and placed on nonaccrual status. When a loan is placed on nonaccrual status, previously accrued and uncollected interest is reversed against current period interest revenue. Interest receipts on nonaccrual loans are recognized as interest revenue or are applied to principal when we believe the ultimate collectability of principal is in doubt. Nonaccrual loans generally are restored to an accrual basis when principal and interest become current and remain current for a specified period.
Allowance for credit losses	Allowance for credit losses The accounting policy for estimating credit losses related to financial assets measured at amortized cost, including loans and lending-related commitments changed beginning in the first quarter of 2020 as a result of the adoption of ASU 2016-13, Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments . This ASU also included targeted amendments with respect to credit losses for available-for-sale debt securities. The accounting policy for determining the allowances has been identified as a “critical accounting estimate” as it requires us to make numerous complex and subjective estimates and assumptions relating to amounts which are judgmental and inherently uncertain. Credit quality is monitored by management and is reflected within the allowance for credit losses. The allowance represents management’s estimate of expected credit losses over the expected contractual life of the financial instruments as of the balance sheet date. The allowance methodology is designed to provide procedural discipline in assessing the appropriateness of the allowance. A quantitative methodology and qualitative framework is used to estimate the allowance for credit losses. The qualitative framework is described in further detail within “Allowance for credit losses - Other” below. The quantitative component of our estimate uses models and methodologies that categorize financial assets based on product type, collateral type, and other credit trends and risk characteristics, including relevant information about past events, current conditions and reasonable and supportable forecasts of future economic conditions that affect the collectability of the recorded amounts. The allowance may be determined using various methods, including discounted cash flow methods, loss-rate methods, probability of default methods or other methods that we determine to be appropriate. We estimate our expected credit losses using the probability of default method for the majority of our financial assets. We measure expected credit losses of financial assets on a collective (pool) basis when similar risk characteristics exist. For a financial asset that does not share risk characteristics with other assets, expected credit losses are measured based on an individual evaluation method. In our estimate, with the exception of our small home equity line of credit portfolio, available-for-sale debt securities, and individually evaluated financial assets, we utilize a multi-scenario macroeconomic forecast which includes a weighting of baseline, stronger near-term growth and moderate recession scenarios. This approach allows us to develop our estimate using a wide span of economic input variables. Our baseline scenario reflects a view on likely performance of each global region and the other two scenarios are designed relative to the baseline scenario. The scenarios include both a reasonable and supportable forecast period as well as a reversion period. The reasonable and supportable forecast is typically over a two to three-year horizon, followed by a reversion period in which the economic data reverts to long-term historical experience. In general, the forecasts across the alternative economic scenarios tend to revert toward the long-term trends after the forecast period, which is the period in which the confidence interval is considered reasonable and supportable. The speed at which the scenario specific forecasts revert is based on observed historical patterns of mean reversion that are reflected in our model parameter estimates. Certain macroeconomic variables such as unemployment or home prices take longer to revert after a contraction, though specific recovery times are scenario-specific. Reversion will usually take longer the further away the scenario specific forecast is from the historical mean. On a quarterly basis, within a developed governance structure, we update these scenarios for current economic conditions and may adjust the scenario weighting based on our economic outlook. Allowance for credit losses - Loans and lending-related commitments The allowance for credit losses on loans is presented as a valuation allowance to loans, and the allowance for credit losses on lending-related commitments is recorded in other liabilities. The components of the allowance for credit losses on loans and lending-related commitments consist of the following three elements: • a pooled allowance component for higher risk-rated and pass-rated commercial and institutional credits; • a pooled allowance component for residential mortgage loans; and • an asset-specific allowance component involving individually evaluated credits of $1 million or greater. The first element, a pooled allowance component for higher risk-rated and pass-rated commercial and institutional credits, is based on our expected credit loss model. Individual credit analyses are performed on such loans before being assigned a credit rating. All borrowers are collectively evaluated based on their credit rating. The loss expected in each loan incorporates the borrower’s credit rating, facility rating and maturity. The loss given default, derived from the facility rating, incorporates a recovery expectation, and for unfunded lending exposures, an estimate of the use of the facility at default (usage given default). The borrower’s probability of default is derived from the associated credit rating. For each of the different parameters, specific credit models are developed for each segment of our portfolio, including commercial loans and lease financing, commercial real estate, financial institutions, and other. Segmentation is established based on risk characteristics of the loans and how risk is monitored. We use both internal and external data in the development of these parameters. In estimating the term of the exposures and resulting effect on the measurement of expected credit loss, we consider the impact of potential prepayments as well as the effect of borrower extension options. Borrower ratings are reviewed at least annually and are periodically mapped to third-party databases, including rating agency and default and recovery databases, to ensure ongoing consistency and validity. Higher risk-rated loans and lending-related commitments are reviewed quarterly. The second element, a pooled allowance component for residential mortgage loans, is determined by first segregating our mortgage pools into two categories: (i) our wealth management mortgages and (ii) our legacy mortgage portfolio disclosed as other residential mortgages. We then apply models to each portfolio to predict prepayments, default rates and loss severity. We consider historical loss experience and use a loan-level, multi-period default model which further segments each portfolio by product type including first lien fixed rate mortgages, first lien adjustable rate mortgages, second lien mortgages, and interest-only mortgages. We calculate the mortgage loss up to loan contractual maturity and embed a reasonable and supportable forecast and macroeconomic variable inputs which are described above. For home equity lines of credit, probability of default and loss given default are based on external data from third-party databases due to the small size of the portfolio and limited internal data. Our legacy mortgage portfolio and home equity line of credit portfolios represent small sub-segments of our mortgage loans. The third element, individually evaluated credits, is based on individual analysis of loans of $1 million and greater which no longer share the risk characteristics with other loans. Factors we consider in measuring the extent of expected credit loss include the payment status, collateral value, the borrower’s financial condition, guarantor support, the probability of collecting scheduled principal and interest payments when due, anticipated modifications of payment structure or term for troubled borrowers, and recoveries if they can be reasonably estimated. We measure the expected credit loss as the difference between the amortized cost basis in the loan and the present value of the expected future cash flows from the borrower which is generally discounted at the loan’s effective interest rate, or the fair value of the collateral, if the loan is collateral dependent. We generally consider nonperforming loans as well as loans that have been or are anticipated to be modified under a troubled debt restructuring for individual evaluation given the risk characteristics of such loans. Allowance for credit losses - Securities - Debt When estimating expected credit losses, we segment our available-for-sale and held-to-maturity debt securities portfolios by major asset class. This is influenced by whether the security is structured or non-structured (i.e., direct obligation), as well as the issuer type. Debt securities are classified as available-for-sale securities when we intend to hold the securities for an indefinite period of time or when the securities may be used for tactical asset/liability management purposes and may be sold from time to time to effectively manage interest rate exposure, prepayment risk and liquidity needs. Available-for-sale securities are measured at fair value. The difference between fair value and amortized cost represents the unrealized gains or losses on assets classified as available-for-sale, and is recorded net of tax as an addition to, or deduction from, other comprehensive income, unless we determine that this difference or a portion thereof represents an expected credit loss. If we determine that a credit loss exists, the amount is recognized as an allowance for credit losses in securities - available-for sale, with a corresponding adjustment to the provision for credit losses. We evaluate credit losses at the individual security level and do not recognize credit losses if the fair value exceeds amortized cost, and if we determine that a credit loss exists, we limit the recognition of the loss to the difference between fair value and amortized cost. In our determination of whether an expected credit loss exists, we routinely conduct periodic reviews and examine various quantitative and qualitative factors that are unique to each portfolio, including the severity of the unrealized loss position, agency rating, credit enhancement, cash flow deterioration and other factors. The measurement of an expected credit loss is then based on the best estimate of the present value of cash flows to be collected from the debt security. Generally, cash flows are discounted at the effective interest rate implicit in the debt security. Changes to the present value of cash flows due to the passage of time are recognized within the allowance for credit losses. We estimate expected credit losses for held-to-maturity debt securities using a similar methodology as described in the first allowance element within “Allowance for credit losses - Loans and lending-related commitments” above. The allowance for credit losses on held-to-maturity debt securities are recorded in securities - held-to-maturity. The components of the credit loss calculation for each major portfolio or asset class include a probability of default and loss given default and their values depend on the forecast behavior of variables in the macroeconomic environment. For structured debt securities, we estimated expected credit losses at the individual security level and use a cash flow model to project principal losses. Generally, cash flows are discounted at the effective interest rate implicit in the debt security. The difference is reflected in the allowance for credit losses, and changes to the present value of cash flows due to the passage of time are recognized within the allowance for credit losses. We currently do not require an estimate of expected credit losses to be measured and recorded for U.S. Treasury securities, agency debt securities, as well as other debt securities that meet certain conditions that are based on a combination of factors such as guarantees, credit ratings, and other credit quality factors. These assets are monitored within our established governance structure on a recurring basis to determine if any changes are warranted. Allowance for credit losses – Other financial instruments We also estimate expected credit losses associated with margin loans, reverse repurchase agreements, security lending indemnifications, and deposits with third-party financial institutions using a similar methodology as described in the first allowance element within “Allowance for credit losses - Loans and lending-related commitments” above. The allowance for credit losses on reverse repurchase agreements are recorded in federal funds sold and securities purchased under resale agreements; the allowance for credit losses on securities lending indemnifications is recorded in other liabilities and the allowance for credit losses on deposits with third party financial institutions is recorded in cash and due from banks or interest-bearing deposits with banks. Our reverse repurchase agreements are short term and subject to continuous overcollateralization by our counterparties and timely collateral replenishment, when necessary. As a result, we estimate the expected credit loss related to the uncollateralized portion of the asset at the balance sheet date, if any, and when there is a reasonable expectation that the counterparty will not replenish the collateral in compliance with the terms of the repurchase agreement. This method is also applied to margin lending arrangements and securities lending indemnifications. Allowance for credit losses - Other We do not apply our credit loss measurement methodologies to accrued interest receivable balances related to our loan, debt securities and deposits with third party financial institutions assets given our nonaccrual policy that requires charge-off of interest receivable when deemed uncollectible. Accrued interest receivable related to these instruments is presented in total with other interest-bearing instruments in the consolidated balance sheet. Accrued interest receivable related to each major loan class is disclosed within our credit quality disclosure in Note 5. Our policy for credit losses related to purchased financial assets requires an evaluation to be performed prior to the effective purchase date to determine if more than an insignificant decline in credit quality has occurred during the period between the origination and purchase date, or in the case of debt securities, the period between the issuance and purchase date. If we purchase a financial asset with more than insignificant deterioration in credit quality, the measurement of expected credit loss is performed using the methodologies described above, and the credit loss is recorded as an allowance for credit losses on the purchase date. Subsequent to purchase, changes (favorable and unfavorable) in expected cash flows are recognized immediately in net income by adjusting the allowance. We evaluate various factors in the determination of whether a more than an insignificant decline in credit quality has occurred and these factors vary depending upon the type of asset purchased. Such factors include changes in risk rating and/or agency rating, collateral deterioration, payment status, purchase price, credit spreads, and other factors. We did not purchase any such assets during the first six months of 2020 and did not own such assets as of June 30, 2020. We apply a separate credit loss methodology to accounts receivables to estimate the expected credit losses associated with these short-term receivables which historically have not resulted in significant credit losses. The allowance for credit losses on accounts receivable is reflected in other assets. The qualitative component of our estimate for the allowance for credit losses is intended to capture expected losses that may not have been fully captured in the quantitative component. Through an established governance structure, management determines the qualitative allowance each period based on an evaluation of various internal and environmental factors which include: scenario weighting and sensitivity risk, credit concentration risk, economic conditions and other considerations. We may also make adjustments for idiosyncratic risks. Once determined in the aggregate, our qualitative allowance is then allocated to each of our financial instrument portfolios except for debt securities and those instruments carried in other assets based on the respective instruments’ quantitative allowance balances. The allocation of this additional allowance for credit losses is inherently judgmental, and the entire allowance for credit losses is available to absorb credit losses regardless of the nature of the loss.

Accounting changes and new ac_3

Accounting changes and new accounting guidance (Tables)	6 Months Ended
	Jun. 30, 2020
Accounting Policies [Abstract]
Reconciliation of Allowance for Credit Losses	The table below presents the reconciliation of the allowance for credit losses (pre-tax). Allowance for credit losses (in millions) Allowance for credit losses – Dec. 31, 2019 $ 216 Impact of adopting ASU 2016-13: Securities 7 Loans (a) (69 ) Other 3 Total impact of adoption of ASU 2016-13 (59 ) Reclassification of credit-related reserves on accounts receivable 4 Allowance for credit losses – Jan. 1, 2020 $ 161 (a) Includes $48 million related to loans and $21 million for lending-related commitments.

Securities (Tables)

Securities (Tables)	6 Months Ended
	Jun. 30, 2020
Securities [Abstract]
Amortized Cost and Fair Values of Securities	The following tables present the amortized cost, the gross unrealized gains and losses and the fair value of securities at June 30, 2020 and Dec. 31, 2019 . Securities at June 30, 2020 Gross unrealized Fair value Amortized cost (in millions) Gains Losses Available-for-sale: Agency RMBS $ 26,005 $ 516 $ 84 $ 26,437 U.S. Treasury 23,537 1,600 — 25,137 Sovereign debt/sovereign guaranteed 15,724 165 2 15,887 Agency commercial mortgage-backed securities (“MBS”) 9,357 633 2 9,988 Foreign covered bonds 5,469 53 3 5,519 Supranational 5,385 64 1 5,448 Collateralized loan obligations (“CLOs”) 4,526 4 98 4,432 Foreign government agencies 3,536 42 — 3,578 U.S. government agencies 2,635 173 2 2,806 Other asset-backed securities (“ABS”) 2,724 29 10 2,743 Non-agency commercial MBS 2,517 129 16 2,630 Commercial paper/certificates of deposit (“CDs”) 1,849 4 — 1,853 Non-agency RMBS (a) 1,464 149 15 1,598 State and political subdivisions 1,150 31 2 1,179 Corporate bonds 789 42 — 831 Other debt securities 1 — — 1 Total securities available-for-sale (b)(c) $ 106,668 $ 3,634 $ 235 $ 110,067 Held-to-maturity: Agency RMBS $ 32,869 $ 1,108 $ 9 $ 33,968 U.S. Treasury 4,687 114 1 4,800 U.S. government agencies 2,349 6 3 2,352 Agency commercial MBS 1,982 108 — 2,090 Commercial paper/CDs 1,537 2 — 1,539 Sovereign debt/sovereign guaranteed 974 41 — 1,015 Foreign covered bonds 79 — — 79 Non-agency RMBS 73 3 2 74 Supranational 49 — — 49 State and political subdivisions 16 1 — 17 Total securities held-to-maturity $ 44,615 $ 1,383 $ 15 $ 45,983 Total securities $ 151,283 $ 5,017 $ 250 $ 156,050 (a) Includes $538 million that was included in the former Grantor Trust. (b) In the first quarter of 2020, we adopted new accounting guidance included in ASU 2016-13, Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments, on a prospective basis. The allowance for credit loss on available-for-sale securities of $12 million primarily relates to CLOs. See Note 2 for additional information. (c) Includes gross unrealized gains of $28 million and gross unrealized losses of $55 million recorded in accumulated other comprehensive income related to securities that were transferred from available-for-sale to held-to-maturity. The unrealized gains and losses are primarily related to Agency RMBS and will be amortized into net interest revenue over the contractual lives of the securities. Securities at Dec. 31, 2019 Gross unrealized Amortized cost Fair value (in millions) Gains Losses Available-for-sale: Agency RMBS $ 27,022 $ 164 $ 143 $ 27,043 U.S. Treasury 14,979 472 20 15,431 Sovereign debt/sovereign guaranteed 12,548 109 11 12,646 Agency commercial MBS 9,231 203 17 9,417 Foreign covered bonds 4,189 15 7 4,197 CLOs 4,078 1 16 4,063 Supranational 3,697 18 6 3,709 Foreign government agencies 2,638 7 2 2,643 Non-agency commercial MBS 2,134 46 2 2,178 Other ABS 2,141 7 5 2,143 U.S. government agencies 1,890 61 2 1,949 Non-agency RMBS (a) 1,038 202 7 1,233 State and political subdivisions 1,017 27 — 1,044 Corporate bonds 832 21 — 853 Other debt securities 1 — — 1 Total securities available-for-sale (b) $ 87,435 $ 1,353 $ 238 $ 88,550 Held-to-maturity: Agency RMBS $ 27,357 $ 292 $ 46 $ 27,603 U.S. Treasury 3,818 28 3 3,843 Agency commercial MBS 1,326 21 3 1,344 U.S. government agencies 1,023 1 2 1,022 Sovereign debt/sovereign guaranteed 756 31 — 787 Non-agency RMBS 80 4 1 83 Foreign covered bonds 79 — — 79 Supranational 27 — — 27 State and political subdivisions 17 — — 17 Total securities held-to-maturity $ 34,483 $ 377 $ 55 $ 34,805 Total securities $ 121,918 $ 1,730 $ 293 $ 123,355 (a) Includes $640 million that was included in the former Grantor Trust. (b) Includes gross unrealized gains of $32 million and gross unrealized losses of $65 million recorded in accumulated other comprehensive income related to securities that were transferred from available-for-sale to held-to-maturity. The unrealized gains and losses are primarily related to Agency RMBS and will be amortized into net interest revenue over the contractual lives of the securities.
Schedule of Realized Gains, Losses, and Impairments	The following table presents the realized gains, losses and impairments, on a gross basis. Net securities gains (losses) (in millions) 2Q20 1Q20 2Q19 YTD20 YTD19 Realized gross gains $ 16 $ 12 $ 12 $ 28 $ 17 Realized gross losses (7 ) (3 ) (5 ) (10 ) (9 ) Recognized gross impairments — — — — — Total net securities gains $ 9 $ 9 $ 7 $ 18 $ 8
Pre-Tax Securities Gains (Losses) by Type	The following table presents pre-tax net securities gains by type. Net securities gains (in millions) 2Q20 1Q20 2Q19 YTD20 YTD19 Supranational $ 6 $ — $ — $ 6 $ — U.S. Treasury 1 5 3 6 4 Other 2 4 4 6 4 Total net securities gains $ 9 $ 9 $ 7 $ 18 $ 8
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	The following table shows the aggregate fair value of available-for-sale securities with a continuous unrealized loss position for less than 12 months and those that have been in a continuous unrealized loss position for 12 months or more without an allowance for credit losses. Available-for-sale securities in an unrealized loss position at June 30, 2020 (a) Less than 12 months 12 months or more Total Fair value Unrealized losses Fair value Unrealized losses Fair value Unrealized losses (in millions) Agency RMBS $ 2,809 $ 5 $ 6,030 $ 79 $ 8,839 $ 84 Sovereign debt/sovereign guaranteed 1,952 2 110 — 2,062 2 Agency commercial MBS 266 — 350 2 616 2 Foreign covered bonds 1,003 2 281 1 1,284 3 Supranational 931 1 233 — 1,164 1 CLOs 3,522 68 575 19 4,097 87 U.S. government agencies 79 2 — — 79 2 Other ABS 760 6 203 4 963 10 Non-agency commercial MBS 476 15 39 1 515 16 Non-agency RMBS (b) 508 7 96 7 604 14 State and political subdivisions 79 2 2 — 81 2 Total securities available-for-sale (c) $ 12,385 $ 110 $ 7,919 $ 113 $ 20,304 $ 223 (a) Includes $530 million of securities with an unrealized loss of greater than $1 million. (b) Includes $42 million of securities with an unrealized loss of $1 million for less than 12 months and $1 million of securities with an unrealized loss of less than $1 million for 12 months or more that were included in the former Grantor Trust. (c) Includes gross unrealized losses of $55 million for 12 months or more recorded in accumulated other comprehensive income related to securities that were transferred from available-for-sale to held-to-maturity. The unrealized losses are primarily related to Agency RMBS and will be amortized into net interest revenue over the contractual lives of the securities. There were no gross unrealized losses for less than 12 months. The following table presents the temporarily impaired securities under the disclosure guidance that existed prior to the adoption of ASU 2016-13 and shows the aggregate fair value of available-for-sale securities with a continuous unrealized loss position for less than 12 months and those that have been in a continuous unrealized loss position for 12 months or more. Temporarily impaired securities at Dec. 31, 2019 Less than 12 months 12 months or more Total (in millions) Fair value Unrealized losses Fair value Unrealized losses Fair value Unrealized losses Available-for-sale: Agency RMBS $ 8,373 $ 33 $ 5,912 $ 110 $ 14,285 $ 143 U.S. Treasury 1,976 16 766 4 2,742 20 Sovereign debt/sovereign guaranteed 4,045 10 225 1 4,270 11 Agency commercial MBS 1,960 12 775 5 2,735 17 Foreign covered bonds 1,009 4 690 3 1,699 7 CLOs 1,066 2 1,499 14 2,565 16 Supranational 1,336 6 360 — 1,696 6 Foreign government agencies 1,706 2 47 — 1,753 2 Non-agency commercial MBS 525 2 45 — 570 2 Other ABS 456 3 305 2 761 5 U.S. government agencies 377 2 — — 377 2 Non-agency RMBS (a) 101 — 113 7 214 7 State and political subdivisions — — 16 — 16 — Corporate bonds 82 — 21 — 103 — Total securities available-for-sale (b) $ 23,012 $ 92 $ 10,774 $ 146 $ 33,786 $ 238 (a) Includes $2 million of securities with an unrealized loss of less than $1 million for less than 12 months and $2 million of securities with an unrealized loss of less than $1 million for 12 months or more that were included in the former Grantor Trust. (b) Includes gross unrealized losses of $65 million for 12 months or more recorded in accumulated other comprehensive income related to securities that were transferred from available-for-sale to held-to-maturity. The unrealized losses are primarily related to Agency RMBS and will be amortized into net interest revenue over the contractual lives of the securities. There were no gross unrealized losses for less than 12 months.
Debt Securities, Held-to-maturity, Credit Quality Indicator	The following table shows the credit quality of the held-to-maturity securities. We have included certain credit ratings information because the information can indicate the degree of credit risk to which we are exposed. Significant changes in ratings classifications could indicate increased credit risk for us and could be accompanied by a reduction in the fair value of our securities portfolio. Held-to-maturity securities portfolio at June 30, 2020 (a) Ratings (b) Net unrealized gain BB+ A1+/A2/SP-1+ (dollars in millions) Amortized AAA/ A+/ BBB+/ Not Agency RMBS $ 32,869 $ 1,099 100 % — % — % — % — % — % U.S. Treasury 4,687 113 100 — — — — — U.S. government agencies 2,349 3 100 — — — — — Agency commercial MBS 1,982 108 100 — — — — — Commercial paper/CDs 1,537 2 — — — — 100 — Sovereign debt/sovereign guaranteed (c) 974 41 100 — — — — — Foreign covered bonds (d) 79 — 100 — — — — — Non-agency RMBS 73 1 42 43 2 12 — 1 Supranational 49 — 100 — — — — — State and political subdivisions 16 1 6 2 6 — — 86 Total held-to-maturity securities $ 44,615 $ 1,368 96 % 1 % — % — % 3 % — % (a) In the first quarter of 2020, we adopted new accounting guidance included in ASU 2016-13, Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments, on a prospective basis. See Note 2 for additional information. (b) Represents ratings by Standard & Poor’s (“S&P”) or the equivalent. (c) Primarily consists of exposure to France, UK and Germany. (d) Primarily consists of exposure to Canada.
Maturity Distribution by Carrying Amount and Yield (on Tax Equivalent Basis) of Investment Securities Portfolio	The following table shows the maturity distribution by carrying amount and yield (on a tax equivalent basis) of our securities portfolio. Maturity distribution and yields on securities at June 30, 2020 U.S. Treasury U.S. government agencies State and political subdivisions Other bonds, notes and debentures Mortgage/ asset-backed (dollars in millions) Amount Yield (a) Amount Yield (a) Amount Yield (a) Amount Yield (a) Amount Yield (a) Total Securities available-for-sale: One year or less $ 5,348 0.50 % $ 25 2.55 % $ 178 2.92 % $ 13,826 0.71 % $ — — % $ 19,377 Over 1 through 5 years 10,350 1.52 1,038 1.22 646 3.29 16,098 0.68 — — 28,132 Over 5 through 10 years 6,171 1.67 1,623 2.56 107 2.42 2,838 0.53 — — 10,739 Over 10 years 3,268 3.11 120 2.06 248 2.37 355 0.97 — — 3,991 Mortgage-backed securities — — — — — — — — 40,653 2.24 40,653 Asset-backed securities — — — — — — — — 7,175 2.18 7,175 Total $ 25,137 1.54 % $ 2,806 2.04 % $ 1,179 2.96 % $ 33,117 0.69 % $ 47,828 2.23 % $ 110,067 Securities held-to-maturity: One year or less $ 1,899 0.41 % $ — — % $ — — % $ 1,646 1.21 % $ — — % $ 3,545 Over 1 through 5 years 2,788 1.91 1,696 1.12 3 5.66 919 0.66 — — 5,406 Over 5 through 10 years — — 212 1.98 — — 31 0.92 — — 243 Over 10 years — — 441 2.33 13 4.76 43 0.35 — — 497 Mortgage-backed securities — — — — — — — — 34,924 2.87 34,924 Total $ 4,687 1.32 % $ 2,349 1.42 % $ 16 4.91 % $ 2,639 1.00 % $ 34,924 2.87 % $ 44,615 (a) Yields are based upon the amortized cost of securities.

Loans and asset quality (Tables

Loans and asset quality (Tables)	6 Months Ended
	Jun. 30, 2020
Receivables [Abstract]
Schedule of Loan Portfolio and Industry Concentrations of Credit Risk	The table below provides the details of our loan portfolio. Loans June 30, 2020 Dec. 31, 2019 (in millions) Domestic: Commercial $ 2,192 $ 1,442 Commercial real estate 6,217 5,575 Financial institutions 3,804 4,852 Lease financings 439 537 Wealth management loans and mortgages 15,753 16,050 Other residential mortgages 450 494 Overdrafts 1,073 524 Other 1,489 1,167 Margin loans 11,476 11,907 Total domestic 42,893 42,548 Foreign: Commercial 253 347 Commercial real estate 11 7 Financial institutions 6,949 7,626 Lease financings 589 576 Wealth management loans and mortgages 122 140 Other (primarily overdrafts) 3,147 2,230 Margin loans 1,433 1,479 Total foreign 12,504 12,405 Total loans (a) $ 55,397 $ 54,953 (a) Net of unearned income of $292 million at June 30, 2020 and $313 million at Dec. 31, 2019 primarily related to domestic and foreign lease financings.
Summary of Transactions in the Allowance for Credit Losses	Activity in the allowance for credit losses on loans and lending-related commitments is presented below. Allowance for credit losses activity for the quarter ended June 30, 2020 Wealth management loans and mortgages Other residential mortgages (in millions) Commercial Commercial real estate Financial institutions Lease financings Total Beginning balance $ 26 $ 208 $ 18 $ 13 $ 9 $ 14 $ 288 Charge-offs — — — — — — — Recoveries — — — — — 3 3 Net recoveries — — — — — 3 3 Provision 14 164 (2 ) (10 ) 2 (5 ) 163 Ending balance (a) $ 40 $ 372 $ 16 $ 3 $ 11 $ 12 $ 454 Allowance for: Loan losses $ 23 $ 244 $ 11 $ 3 $ 9 $ 12 $ 302 Lending-related commitments 17 128 5 — 2 — 152 Individually evaluated for impairment: Loan balance $ — $ — $ — $ — $ 18 (b) $ — $ 18 Allowance for loan losses — — — — — — — (a) Includes $11 million of allowance for credit losses related to foreign loans, primarily financial institutions. (b) Includes collateral dependent loans of $18 million with $26 million of collateral at fair value. Allowance for credit losses activity for the quarter ended March 31, 2020 Wealth management loans and mortgages Other residential mortgages (in millions) Commercial Commercial real estate Financial institutions Lease financings Foreign (a) Total Balance at Dec. 31, 2019 $ 60 $ 76 $ 20 $ 3 $ 20 $ 13 $ 24 $ 216 Impact of adopting ASU 2016-13 (43 ) 14 (6 ) — (12 ) 2 (24 ) (69 ) Balance at Jan. 1, 2020 17 90 14 3 8 15 — 147 Charge-offs — — — — — — — — Recoveries — — — — — — — — Net (charge-offs) recoveries — — — — — — — — Provision 9 118 4 10 1 (1 ) — 141 Ending balance (b) $ 26 $ 208 $ 18 $ 13 $ 9 $ 14 $ — $ 288 Allowance for: Loan losses $ 13 $ 83 $ 10 $ 13 $ 7 $ 14 $ — $ 140 Lending-related commitments 13 125 8 — 2 — — 148 Individually evaluated for impairment: Loan balance $ — $ — $ — $ — $ 18 (c) $ — $ — $ 18 Allowance for loan losses — — — — — — — — (a) The allowance related to foreign exposure has been reclassified to financial institutions ( $10 million ), commercial ( $10 million ) and lease financings ( $4 million ). (b) Includes $12 million of allowance for credit losses related to foreign loans, primarily financial institutions. (c) Includes collateral dependent loans of $18 million with $26 million of collateral at fair value. Allowance for credit losses activity for the quarter ended June 30, 2019 Wealth management loans and mortgages Other residential mortgages All other Foreign Total (in millions) Commercial Commercial real estate Financial institutions Lease financings Beginning balance $ 82 $ 74 $ 23 $ 4 $ 21 $ 15 $ — $ 29 $ 248 Charge-offs — — — — (1 ) — — — (1 ) Recoveries — — — — — 2 — — 2 Net (charge-offs) recoveries — — — — (1 ) 2 — — 1 Provision (5 ) (2 ) (2 ) — — (3 ) — 4 (8 ) Ending balance $ 77 $ 72 $ 21 $ 4 $ 20 $ 14 $ — $ 33 $ 241 Allowance for: Loan losses $ 23 $ 57 $ 8 $ 4 $ 17 $ 14 $ — $ 23 $ 146 Lending-related commitments 54 15 13 — 3 — — 10 95 Individually evaluated for impairment: Loan balance $ 96 $ — $ — $ — $ 16 $ — $ — $ — $ 112 Allowance for loan losses 10 — — — — — — — 10 Collectively evaluated for impairment: Loan balance $ 1,356 $ 5,192 $ 4,574 $ 662 $ 15,563 $ 549 $ 12,849 (a) $ 11,539 $ 52,284 Allowance for loan losses 13 57 8 4 17 14 — 23 136 (a) Includes $1,575 million of domestic overdrafts, $10,152 million of margin loans and $1,122 million of other loans at June 30, 2019 . Allowance for credit losses activity for the six months ended June 30, 2020 Wealth management loans and mortgages Other Foreign Total (in millions) Commercial Commercial Financial Lease Balance at Dec. 31, 2019 $ 60 $ 76 $ 20 $ 3 $ 20 $ 13 $ 24 $ 216 Impact of adopting ASU 2016-13 (43 ) 14 (6 ) — (12 ) 2 (24 ) (69 ) Balance at Jan. 1, 2020 17 90 14 3 8 15 — 147 Charge-offs — — — — — — — — Recoveries — — — — — 3 — 3 Net recoveries — — — — — 3 — 3 Provision 23 282 2 — 3 (6 ) — 304 Ending balance $ 40 $ 372 $ 16 $ 3 $ 11 $ 12 $ — $ 454 Allowance for credit losses activity for the six months ended June 30, 2019 Wealth management loans and mortgages Other All Foreign Total (in millions) Commercial Commercial Financial Lease Beginning balance $ 81 $ 75 $ 22 $ 5 $ 21 $ 16 $ — $ 32 $ 252 Charge-offs (11 ) — — — (1 ) — — — (12 ) Recoveries — — — — — 2 — — 2 Net (charge-offs) recoveries (11 ) — — — (1 ) 2 — — (10 ) Provision 7 (3 ) (1 ) (1 ) — (4 ) — 1 (1 ) Ending balance $ 77 $ 72 $ 21 $ 4 $ 20 $ 14 $ — $ 33 $ 241
Distribution of Nonperforming Assets	The table below presents our nonperforming assets. Nonperforming assets June 30, 2020 Dec. 31, 2019 Recorded investment With an allowance Without an allowance (in millions) Total Nonperforming loans: Other residential mortgages $ 58 $ — $ 58 $ 62 Wealth management loans and mortgages 10 18 28 24 Total nonperforming loans 68 18 86 86 Other assets owned — 2 2 3 Total nonperforming assets $ 68 $ 20 $ 88 $ 89
Information about Past Due Loans	The table below presents our past due loans. Past due loans and still accruing interest June 30, 2020 Dec. 31, 2019 Days past due Total past due Days past due Total past due (in millions) 30-59 60-89 ≥90 30-59 60-89 ≥90 Wealth management loans and mortgages $ 31 $ 6 $ — $ 37 $ 22 $ 5 $ — $ 27 Other residential mortgages 5 1 — 6 8 3 — 11 Financial institutions — — — — 1 30 — 31 Commercial real estate — — — — 6 12 — 18 Total past due loans $ 36 $ 7 $ — $ 43 $ 37 $ 50 $ — $ 87
Credit Profile of Loan Portfolio by Origination	The table below provides information about the credit profile of the loan portfolio by the period of origination. Credit profile of the loan portfolio June 30, 2020 Revolving loans Originated, at amortized cost Amortized cost Converted to term loans - Amortized cost Accrued (in millions) YTD20 2019 2018 2017 2016 Prior to 2016 Total (a) Commercial: Investment grade $ 107 $ 213 $ 106 $ 554 $ 57 $ — $ 1,054 $ — $ 2,091 Non-investment grade 40 69 12 — 3 — 230 — 354 Total commercial 147 282 118 554 60 — 1,284 — 2,445 $ 3 Commercial real estate: Investment grade 500 1,212 806 550 431 422 292 — 4,213 Non-investment grade 77 410 459 179 421 212 228 29 2,015 Total commercial real estate 577 1,622 1,265 729 852 634 520 29 6,228 8 Financial institutions: Investment grade 27 247 133 125 14 181 7,934 — 8,661 Non-investment grade 53 29 — — — — 2,010 — 2,092 Total financial institutions 80 276 133 125 14 181 9,944 — 10,753 25 Wealth management loans and mortgages: Investment grade 34 81 12 171 56 85 6,877 — 7,316 Non-investment grade — — — — — 35 79 — 114 Wealth management mortgages 491 1,126 719 1,360 1,736 2,976 37 — 8,445 Total wealth management loans and mortgages 525 1,207 731 1,531 1,792 3,096 6,993 — 15,875 27 Lease financings 45 20 20 12 29 902 — — 1,028 — Other residential mortgages — — — — — 450 — — 450 2 Other loans — — — — — — 1,530 — 1,530 1 Margin loans 2,552 1,000 — — — — 9,357 — 12,909 11 Total loans $ 3,926 $ 4,407 $ 2,267 $ 2,951 $ 2,747 $ 5,263 $ 29,628 $ 29 $ 51,218 $ 77 (a) Excludes overdrafts of $4,179 million . Overdrafts occur on a daily basis primarily in the custody and securities clearance business and are generally repaid within two business days.

Goodwill and intangible assets

Goodwill and intangible assets (Tables)	6 Months Ended
	Jun. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Breakdown of Goodwill by Business	The tables below provide a breakdown of goodwill by business. Goodwill by business (in millions) Investment Investment and Wealth Other Consolidated Balance at Dec. 31, 2019 $ 8,332 $ 9,007 $ 47 $ 17,386 Foreign currency translation (24 ) (109 ) — (133 ) Other (a) 47 — (47 ) — Balance at June 30, 2020 $ 8,355 $ 8,898 $ — $ 17,253 (a) Reflects the transfer of goodwill associated with the Capital Markets business. Goodwill by business (in millions) Investment Investment and Wealth Management Other Consolidated Balance at Dec. 31, 2018 $ 8,333 $ 8,970 $ 47 $ 17,350 Foreign currency translation (6 ) (7 ) — (13 ) Balance at June 30, 2019 $ 8,327 $ 8,963 $ 47 $ 17,337
Breakdown of Intangible Assets by Business	The tables below provide a breakdown of intangible assets by business. Intangible assets – net carrying amount by business (in millions) Investment Investment and Wealth Management Other Consolidated Balance at Dec. 31, 2019 $ 678 $ 1,580 $ 849 $ 3,107 Amortization (36 ) (16 ) — (52 ) Foreign currency translation — (10 ) — (10 ) Balance at June 30, 2020 $ 642 $ 1,554 $ 849 $ 3,045 Intangible assets – net carrying amount by business (in millions) Investment Investment and Wealth Management Other Consolidated Balance at Dec. 31, 2018 $ 758 $ 1,613 $ 849 $ 3,220 Amortization (41 ) (18 ) — (59 ) Foreign currency translation — (1 ) — (1 ) Balance at June 30, 2019 $ 717 $ 1,594 $ 849 $ 3,160
Breakdown of Intangible Assets by Type	The table below provides a breakdown of intangible assets by type. Intangible assets June 30, 2020 Dec. 31, 2019 (in millions) Gross carrying amount Accumulated amortization Net carrying amount Remaining weighted- average amortization period Gross Accumulated Net carrying amount Subject to amortization: (a) Customer contracts—Investment Services $ 1,514 $ (1,244 ) $ 270 10 years $ 1,520 $ (1,214 ) $ 306 Customer relationships—Investment and Wealth Management 709 (554 ) 155 10 years 712 (544 ) 168 Other 64 (19 ) 45 14 years 64 (16 ) 48 Total subject to amortization 2,287 (1,817 ) 470 10 years 2,296 (1,774 ) 522 Not subject to amortization: (b) Tradenames 1,291 N/A 1,291 N/A 1,293 N/A 1,293 Customer relationships 1,284 N/A 1,284 N/A 1,292 N/A 1,292 Total not subject to amortization 2,575 N/A 2,575 N/A 2,585 N/A 2,585 Total intangible assets $ 4,862 $ (1,817 ) $ 3,045 N/A $ 4,881 $ (1,774 ) $ 3,107 (a) Excludes fully amortized intangible assets. (b) Intangible assets not subject to amortization have an indefinite life.
Estimated Annual Amortization Expense	Estimated annual amortization expense for current intangibles for the next five years is as follows: For the year ended Estimated amortization expense (in millions) 2020 $ 104 2021 81 2022 63 2023 52 2024 45

Other assets (Tables)

Other assets (Tables)	6 Months Ended
	Jun. 30, 2020
Other Assets [Abstract]
Summary of Other Assets Presented on the Consolidated Balance Sheet	The following table provides the components of other assets presented on the consolidated balance sheet. Other assets June 30, 2020 Dec. 31, 2019 (in millions) Corporate/bank-owned life insurance $ 5,245 $ 5,219 Accounts receivable 3,404 3,802 Fails to deliver 3,201 1,671 Software 1,778 1,590 Prepaid pension assets 1,545 1,464 Equity in a joint venture and other investments 1,146 1,102 Renewable energy investments 1,083 1,144 Qualified affordable housing project investments 962 1,024 Prepaid expense 544 491 Federal Reserve Bank stock 477 466 Income taxes receivable 194 388 Seed capital 149 184 Fair value of hedging derivatives 137 21 Other (a) 1,441 1,655 Total other assets $ 21,306 $ 20,221 (a) At June 30, 2020 and Dec. 31, 2019 , other assets include $7 million and $22 million , respectively, of Federal Home Loan Bank stock, at cost.
Equity Securities without Readily Determinable Fair Value	The following table presents the adjustments on the non-readily marketable equity securities. Adjustments on non-readily marketable equity securities Life-to-date (in millions) 2Q20 1Q20 2Q19 YTD20 YTD19 Upward adjustments $ 2 $ 4 $ 2 $ 6 $ 2 $ 38 Downward adjustments — — (1 ) — (1 ) (4 ) Net adjustments $ 2 $ 4 $ 1 $ 6 $ 1 $ 34
Summary of Investments Valued Using NAV	The table below presents information on our investments valued using NAV. Investments valued using NAV June 30, 2020 Dec. 31, 2019 (in millions) Fair value Unfunded commitments Fair value Unfunded commitments Seed capital (a) $ 56 $ 12 $ 59 $ — Private equity investments (SBICs) (b) 91 58 89 55 Other (c) 40 — 33 — Total $ 187 $ 70 $ 181 $ 55 (a) Primarily includes leveraged loans and structured credit funds, which are generally not redeemable. Distributions from such investments will be received as the underlying investments in the funds, which have lives of six to 11 years at June 30, 2020 and lives of six years at Dec. 31, 2019, are liquidated. (b) Private equity investments include Volcker Rule-compliant investments in SBICs that invest in various sectors of the economy. Private equity investments do not have redemption rights. Distributions from such investments will be received as the underlying investments in the private equity investments, which have a life of 10 years, are liquidated. (c) Primarily includes investments in funds that relate to deferred compensation arrangements with employees. Investments in funds can be redeemed on a monthly to quarterly basis with redemption notice periods of up to 95 days .

Contract revenue (Tables)

Contract revenue (Tables)	6 Months Ended
	Jun. 30, 2020
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	The following table presents fee revenue related to contracts with customers, disaggregated by type of fee revenue, for each business segment. Business segment data has been determined on an internal management basis of accounting, rather than the generally accepted accounting principles used for consolidated financial reporting. Disaggregation of contract revenue by business segment Quarter ended June 30, 2020 March 31, 2020 June 30, 2019 (a) (in millions) IS IWM Other Total IS IWM Other Total IS IWM Other Total Fee revenue - contract revenue: Investment services fees: Asset servicing fees $ 1,147 $ 25 $ (15 ) $ 1,157 $ 1,127 $ 23 $ (11 ) $ 1,139 $ 1,095 $ 20 $ (6 ) $ 1,109 Clearing services fees 431 — — 431 470 — — 470 411 — (1 ) 410 Issuer services fees 277 — — 277 263 — — 263 291 — — 291 Treasury services fees 144 — 1 145 149 — — 149 140 1 — 141 Total investment services fees 1,999 25 (14 ) 2,010 2,009 23 (11 ) 2,021 1,937 21 (7 ) 1,951 Investment management and performance fees 4 792 (5 ) 791 5 862 (4 ) 863 4 833 (4 ) 833 Financing-related fees 23 1 — 24 28 — — 28 16 — 1 17 Distribution and servicing (7 ) 34 — 27 (12 ) 43 — 31 (13 ) 44 — 31 Investment and other income 62 (41 ) 3 24 72 (50 ) — 22 69 (48 ) — 21 Total fee revenue - contract revenue 2,081 811 (16 ) 2,876 2,102 878 (15 ) 2,965 2,013 850 (10 ) 2,853 Fee and other revenue - not in scope of Accounting Standards Codification (“ASC”) 606 (b)(c) 258 27 54 339 334 (32 ) 45 347 220 4 41 265 Total fee and other revenue $ 2,339 $ 838 $ 38 $ 3,215 $ 2,436 $ 846 $ 30 $ 3,312 $ 2,233 $ 854 $ 31 $ 3,118 (a) Restated to reflect the first quarter 2020 business segment reclassifications. There was no impact on total revenue, by type or in aggregate. (b) Primarily includes foreign exchange and other trading revenue, investment and other income (loss), financing-related fees, asset servicing fees, net securities gains (losses), all of which are accounted for using other accounting guidance. (c) The Investment and Wealth Management business includes income (loss) from consolidated investment management funds, net of noncontrolling interests, of $39 million in the second quarter of 2020 , $(20) million in the first quarter of 2020 and $6 million in the second quarter of 2019 . IS - Investment Services segment. IWM - Investment and Wealth Management segment. Disaggregation of contract revenue by business segment Year-to-date June 30, 2020 June 30, 2019 (a) (in millions) IS IWM Other Total IS IWM Other Total Fee revenue - contract revenue: Investment services fees: Asset servicing fees $ 2,274 $ 48 $ (26 ) $ 2,296 $ 2,176 $ 40 $ (14 ) $ 2,202 Clearing services fees 901 — — 901 809 — (1 ) 808 Issuer services fees 540 — — 540 542 — — 542 Treasury services fees 293 — 1 294 272 1 — 273 Total investment services fees 4,008 48 (25 ) 4,031 3,799 41 (15 ) 3,825 Investment management and performance fees 9 1,654 (9 ) 1,654 8 1,674 (8 ) 1,674 Financing-related fees 51 1 — 52 33 — 1 34 Distribution and servicing (19 ) 77 — 58 (27 ) 89 — 62 Investment and other income 134 (91 ) 3 46 138 (97 ) — 41 Total fee revenue - contract revenue 4,183 1,689 (31 ) 5,841 3,951 1,707 (22 ) 5,636 Fee and other revenue - not in scope of ASC 606 (b)(c) 592 (5 ) 99 686 443 16 71 530 Total fee and other revenue $ 4,775 $ 1,684 $ 68 $ 6,527 $ 4,394 $ 1,723 $ 49 $ 6,166 (a) Restated to reflect the first quarter 2020 business segment reclassifications. There was no impact on total revenue, by type or in aggregate. (b) Primarily includes foreign exchange and other trading revenue, investment and other income (loss), financing-related fees, asset servicing fees, net securities gains (losses), all of which are accounted for using other accounting guidance. (c) The Investment and Wealth Management business includes income from consolidated investment management funds, net of noncontrolling interests, of $19 million in the first six months of 2020 and $22 million in the first six months of 2019 . IS - Investment Services segment. IWM - Investment and Wealth Management segment.

Net interest revenue (Tables)

Net interest revenue (Tables)	6 Months Ended
	Jun. 30, 2020
Interest Revenue (Expense), Net [Abstract]
Components of Net Interest Revenue	The following table provides the components of net interest revenue presented on the consolidated income statement. Net interest revenue Quarter ended Year-to-date (in millions) June 30, 2020 March 31, 2020 June 30, 2019 June 30, 2020 June 30, 2019 Interest revenue Deposits with the Federal Reserve and other central banks $ (7 ) $ 80 $ 113 $ 73 $ 252 Deposits with banks 40 58 64 98 127 Federal funds sold and securities purchased under resale agreements 61 396 568 457 1,042 Margin loans 40 87 119 127 254 Non-margin loans 230 309 365 539 720 Securities: Taxable 556 594 687 1,150 1,393 Exempt from federal income taxes 6 6 10 12 22 Total securities 562 600 697 1,162 1,415 Trading securities 17 40 39 57 75 Total interest revenue 943 1,570 1,965 2,513 3,885 Interest expense Deposits (17 ) 240 432 223 823 Federal funds purchased and securities sold under repurchase agreements 1 275 372 276 703 Trading liabilities 2 7 11 9 18 Other borrowed funds 7 4 20 11 44 Commercial paper 1 6 18 7 26 Customer payables (1 ) 30 69 29 139 Long-term debt 170 194 241 364 489 Total interest expense 163 756 1,163 919 2,242 Net interest revenue 780 814 802 1,594 1,643 Provision for credit losses 143 169 (8 ) 312 (1 ) Net interest revenue after provision for credit losses $ 637 $ 645 $ 810 $ 1,282 $ 1,644

Employee benefit plans (Tables)

Employee benefit plans (Tables)	6 Months Ended
	Jun. 30, 2020
Retirement Benefits [Abstract]
Combined Data for Domestic and Foreign Defined Benefit Pension and Post Retirement Healthcare Plans	The components of net periodic benefit (credit) cost are presented below. The service cost component is reflected in staff expense, whereas the remaining components are reflected in other expense. Net periodic benefit (credit) cost Quarter ended June 30, 2020 March 31, 2020 June 30, 2019 (in millions) Domestic pension benefits Foreign pension benefits Health care benefits Domestic pension benefits Foreign pension benefits Health care benefits Domestic pension benefits Foreign pension benefits Health care benefits Service cost $ — $ 3 $ — $ — $ 3 $ — $ — $ 3 $ — Interest cost 39 6 1 39 7 1 45 8 1 Expected return on assets (79 ) (9 ) (2 ) (80 ) (10 ) (1 ) (84 ) (12 ) (2 ) Other 21 3 — 22 3 (1 ) 13 1 — Net periodic benefit (credit) cost $ (19 ) $ 3 $ (1 ) $ (19 ) $ 3 $ (1 ) $ (26 ) $ — $ (1 ) Net periodic benefit (credit) cost Year-to-date June 30, 2020 June 30, 2019 (in millions) Domestic pension benefits Foreign pension benefits Health care benefits Domestic pension benefits Foreign pension benefits Health care benefits Service cost $ — $ 6 $ — $ — $ 6 $ — Interest cost 78 13 2 89 16 3 Expected return on assets (159 ) (19 ) (3 ) (168 ) (23 ) (4 ) Other 43 6 (1 ) 26 1 (1 ) Net periodic benefit (credit) cost $ (38 ) $ 6 $ (2 ) $ (53 ) $ — $ (2 )

Variable interest entities an_2

Variable interest entities and securitization (Tables)	6 Months Ended
	Jun. 30, 2020
Securitizations And Variable Interest Entities Disclosure [Abstract]
Incremental Assets and Liabilities Included in Consolidated Financial Statements	The following table presents the incremental assets and liabilities included in the consolidated balance sheet as of June 30, 2020 and Dec. 31, 2019 . The net assets of any consolidated VIE are solely available to settle the liabilities of the VIE and to settle any investors’ ownership liquidation requests, including any seed capital we invested in the VIE. Consolidated investments June 30, 2020 Dec. 31, 2019 (in millions) Investment Management funds Securitization Total consolidated investments Investment Management funds Securitization Total consolidated investments Trading assets $ 450 $ 400 $ 850 $ 229 $ 400 $ 629 Other assets 10 — 10 16 — 16 Total assets $ 460 (a) $ 400 $ 860 $ 245 (b) $ 400 $ 645 Other liabilities $ 4 $ 399 $ 403 $ 1 $ 387 $ 388 Total liabilities $ 4 (a) $ 399 $ 403 $ 1 (b) $ 387 $ 388 Nonredeemable noncontrolling interests $ 112 (a) $ — $ 112 $ 102 (b) $ — $ 102 (a) Includes voting model entities (“VMEs”) with assets of $283 million , liabilities of $1 million and nonredeemable noncontrolling interests of $37 million . (b) Includes VMEs with assets of $50 million , liabilities of $1 million and nonredeemable noncontrolling interests of $1 million .
Schedule of Variable Interest Entities	As of June 30, 2020 and Dec. 31, 2019 , the following assets and liabilities related to the VIEs where we are not the primary beneficiary were included in our consolidated balance sheets and primarily related to accounting for our investments in qualified affordable housing and renewable energy projects. The maximum loss exposure indicated in the table below relates solely to our investments in, and unfunded commitments to, the VIEs. Non-consolidated VIEs June 30, 2020 Dec. 31, 2019 (in millions) Assets Liabilities Maximum loss exposure Assets Liabilities Maximum loss exposure Securities - Available-for-sale (a) $ 199 $ — $ 199 $ 208 $ — $ 208 Other 2,237 363 2,609 2,400 422 2,822 (a) Includes investments in the Company’s sponsored CLOs.

Preferred stock (Tables)

Preferred stock (Tables)	6 Months Ended
	Jun. 30, 2020
Stockholders' Equity Note [Abstract]
Preferred Stock Summary	The following table summarizes the Parent’s preferred stock issued and outstanding at June 30, 2020 and Dec. 31, 2019 . Preferred stock summary (a) Total shares issued and outstanding Carrying value (b) (in millions) June 30, 2020 Dec. 31, 2019 June 30, 2020 Dec. 31, 2019 Per annum dividend rate Series A Greater of (i) three-month LIBOR plus 0.565% for the related distribution period; or (ii) 4.000% 5,001 5,001 $ 500 $ 500 Series C 5.2% 5,825 5,825 568 568 Series D 4.50% to but excluding June 20, 2023, then a floating rate equal to the three-month LIBOR plus 2.46% 5,000 5,000 494 494 Series E 4.95% to but excluding June 20, 2020, then a floating rate equal to the three-month LIBOR plus 3.42% 10,000 10,000 990 990 Series F 4.625% to but excluding Sept. 20, 2026, then a floating rate equal to the three-month LIBOR plus 3.131% 10,000 10,000 990 990 Series G 4.70% to but excluding Sept. 20, 2025, then a floating rate equal to the five-year treasury rate plus 4.358% 10,000 — 990 — Total 45,826 35,826 $ 4,532 $ 3,542 (a) All outstanding preferred stock is noncumulative perpetual preferred stock with a liquidation preference of $100,000 per share. (b) The carrying value of the Series C, Series D, Series E, Series F and Series G preferred stock is recorded net of issuance costs.
Summary of Preferred Dividends Paid	The table below presents the dividends paid on the Parent’s preferred stock. Preferred dividends paid (dollars in millions, except per share amounts) Depositary shares per share 2Q20 1Q20 2Q19 YTD20 YTD19 Per share Total Per share Total Per share Total Per share Total Per share Total Series A 100 (a) $ 1,022.22 $ 5 $ 1,011.11 $ 5 $ 1,022.22 $ 5 $ 2,033.33 $ 10 $ 2,022.22 $ 10 Series C 4,000 1,300.00 8 1,300.00 8 1,300.00 7 2,600.00 16 2,600.00 15 Series D 100 2,250.00 11 N/A — 2,250.00 11 2,250.00 11 2,250.00 11 Series E 100 2,475.00 25 N/A — 2,475.00 25 2,475.00 25 2,475.00 25 Series F 100 N/A — 2,312.50 23 N/A — 2,312.50 23 2,312.50 23 Total $ 49 $ 36 $ 48 $ 85 $ 84 (a) Represents Normal Preferred Capital Securities. N/A - Not applicable.

Other comprehensive income (l_2

Other comprehensive income (loss) (Tables)	6 Months Ended
	Jun. 30, 2020
Equity [Abstract]
Components of Other Comprehensive Income (Loss)	Components of other comprehensive income (loss) Quarter ended June 30, 2020 March 31, 2020 June 30, 2019 (in millions) Pre-tax Tax After-tax Pre-tax Tax After-tax Pre-tax Tax After-tax Foreign currency translation: Foreign currency translation adjustments arising during the period (a) $ 104 $ 11 $ 115 $ (265 ) $ (104 ) $ (369 ) $ 29 $ (19 ) $ 10 Total foreign currency translation 104 11 115 (265 ) (104 ) (369 ) 29 (19 ) 10 Unrealized gain (loss) on assets available-for-sale: Unrealized gain (loss) arising during period 989 (236 ) 753 243 (60 ) 183 384 (97 ) 287 Reclassification adjustment (b) (9 ) 2 (7 ) (9 ) 2 (7 ) (7 ) 2 (5 ) Net unrealized gain (loss) on assets available-for-sale 980 (234 ) 746 234 (58 ) 176 377 (95 ) 282 Defined benefit plans: Amortization of prior service credit, net loss and initial obligation included in net periodic benefit cost (b) 24 (5 ) 19 24 (6 ) 18 12 (2 ) 10 Total defined benefit plans 24 (5 ) 19 24 (6 ) 18 12 (2 ) 10 Unrealized gain (loss) on cash flow hedges: Unrealized hedge gain (loss) arising during period 3 (1 ) 2 (13 ) 3 (10 ) 2 (2 ) — Reclassification of net (gain) loss to net income: Foreign exchange (“FX”) contracts - staff expense 3 (1 ) 2 (1 ) — (1 ) — — — Total reclassifications to net income 3 (1 ) 2 (1 ) — (1 ) — — — Net unrealized gain (loss) on cash flow hedges 6 (2 ) 4 (14 ) 3 (11 ) 2 (2 ) — Total other comprehensive income (loss) $ 1,114 $ (230 ) $ 884 $ (21 ) $ (165 ) $ (186 ) $ 420 $ (118 ) $ 302 (a) Includes the impact of hedges of net investments in foreign subsidiaries. See Note 17 for additional information. (b) The reclassification adjustment related to the unrealized gain (loss) on assets available-for-sale is recorded as net securities gains on the consolidated income statement. The amortization of prior service credit, net loss and initial obligation included in net periodic benefit cost is recorded as staff expense on the consolidated income statement. Components of other comprehensive income (loss) Year-to-date June 30, 2020 June 30, 2019 (in millions) Pre-tax amount Tax (expense) benefit After-tax amount Pre-tax amount Tax (expense) benefit After-tax amount Foreign currency translation: Foreign currency translation adjustments arising during the period (a) $ (161 ) $ (93 ) $ (254 ) $ 56 $ (17 ) $ 39 Total foreign currency translation (161 ) (93 ) (254 ) 56 (17 ) 39 Unrealized gain (loss) on assets available-for-sale: Unrealized gain (loss) arising during period 1,232 (296 ) 936 706 (180 ) 526 Reclassification adjustment (b) (18 ) 4 (14 ) (8 ) 2 (6 ) Net unrealized gain (loss) on assets available-for-sale 1,214 (292 ) 922 698 (178 ) 520 Defined benefit plans: Net gain (loss) arising during the period — — — (11 ) 2 (9 ) Amortization of prior service credit, net loss and initial obligation included in net periodic benefit cost (b) 48 (11 ) 37 25 (5 ) 20 Total defined benefit plans 48 (11 ) 37 14 (3 ) 11 Unrealized (loss) gain on cash flow hedges: Unrealized hedge (loss) gain arising during period (10 ) 2 (8 ) 8 (6 ) 2 Reclassification of net loss (gain) to net income : FX contracts - staff expense 2 (1 ) 1 1 2 3 Total reclassifications to net income 2 (1 ) 1 1 2 3 Net unrealized (loss) gain on cash flow hedges (8 ) 1 (7 ) 9 (4 ) 5 Total other comprehensive income (loss) $ 1,093 $ (395 ) $ 698 $ 777 $ (202 ) $ 575 (a) Includes the impact of hedges of net investments in foreign subsidiaries. See Note 17 for additional information. (b) The reclassification adjustment related to the unrealized gain (loss) on assets available-for-sale is recorded as net securities gains on the consolidated income statement. The amortization of prior service credit, net loss and initial obligation included in net periodic benefit cost is recorded as staff expense on the consolidated income statement.

Fair value measurement (Tables)

Fair value measurement (Tables)	6 Months Ended
	Jun. 30, 2020
Fair Value Disclosures [Abstract]
Financial Instruments Carried at Fair Value on Recurring Basis	The following tables present the financial instruments carried at fair value at June 30, 2020 and Dec. 31, 2019 , by caption on the consolidated balance sheet and by the three-level valuation hierarchy. We have included credit ratings information in certain of the tables because the information indicates the degree of credit risk to which we are exposed, and significant changes in ratings classifications could result in increased risk for us. Assets measured at fair value on a recurring basis at June 30, 2020 Total carrying (dollars in millions) Level 1 Level 2 Level 3 Netting (a) Available-for-sale securities: Agency RMBS $ — $ 26,437 $ — $ — $ 26,437 U.S. Treasury 25,137 — — — 25,137 Sovereign debt/sovereign guaranteed 8,570 7,317 — — 15,887 Agency commercial MBS — 9,988 — — 9,988 Foreign covered bonds — 5,519 — — 5,519 Supranational — 5,448 — — 5,448 CLOs — 4,432 — — 4,432 Foreign government agencies — 3,578 — — 3,578 U.S. government agencies — 2,806 — — 2,806 Other ABS — 2,743 — — 2,743 Non-agency commercial MBS — 2,630 — — 2,630 Commercial paper/CDs — 1,853 — — 1,853 Non-agency RMBS (b) — 1,598 — — 1,598 State and political subdivisions — 1,179 — — 1,179 Corporate bonds — 831 — — 831 Other debt securities — 1 — — 1 Total available-for-sale securities 33,707 76,360 — — 110,067 Trading assets: Debt instruments 4,782 2,775 — — 7,557 Equity instruments (c) 2,397 — — — 2,397 Derivative assets not designated as hedging: Interest rate 5 5,496 — (2,436 ) 3,065 Foreign exchange — 4,322 — (3,204 ) 1,118 Equity and other contracts 2 11 — — 13 Total derivative assets not designated as hedging 7 9,829 — (5,640 ) 4,196 Total trading assets 7,186 12,604 — (5,640 ) 14,150 Other assets: Derivative assets designated as hedging: Foreign exchange — 137 — — 137 Total derivative assets designated as hedging — 137 — — 137 Other assets (d) 52 153 — — 205 Assets measured at NAV (d) 187 Subtotal assets of operations at fair value 40,945 89,254 — (5,640 ) 124,746 Percentage of assets of operations prior to netting 31 % 69 % — % Assets of consolidated investment management funds 416 44 — — 460 Total assets $ 41,361 $ 89,298 $ — $ (5,640 ) $ 125,206 Percentage of total assets prior to netting 32 % 68 % — % Liabilities measured at fair value on a recurring basis at June 30, 2020 Total carrying (dollars in millions) Level 1 Level 2 Level 3 Netting (a) Trading liabilities: Debt instruments $ 2,589 $ 75 $ — $ — $ 2,664 Equity instruments 20 — — — 20 Derivative liabilities not designated as hedging: Interest rate 7 4,661 — (2,680 ) 1,988 Foreign exchange — 4,036 — (3,134 ) 902 Equity and other contracts 1 23 — (3 ) 21 Total derivative liabilities not designated as hedging 8 8,720 — (5,817 ) 2,911 Total trading liabilities 2,617 8,795 — (5,817 ) 5,595 Long-term debt (c) — 399 — — 399 Other liabilities – derivative liabilities designated as hedging: Interest rate — 915 — — 915 Foreign exchange — 49 — — 49 Total other liabilities – derivative liabilities designated as hedging — 964 — — 964 Subtotal liabilities of operations at fair value 2,617 10,158 — (5,817 ) 6,958 Percentage of liabilities of operations prior to netting 20 % 80 % — % Liabilities of consolidated investment management funds — 4 — — 4 Total liabilities $ 2,617 $ 10,162 $ — $ (5,817 ) $ 6,962 Percentage of total liabilities prior to netting 20 % 80 % — % (a) ASC 815, Derivatives and Hedging, permits the netting of derivative receivables and derivative payables under legally enforceable master netting agreements and permits the netting of cash collateral. Netting is applicable to derivatives not designated as hedging instruments included in trading assets or trading liabilities and derivatives designated as hedging instruments included in other assets or other liabilities. Netting is allocated to the derivative products based on the net fair value of each product. (b) Includes $538 million in Level 2 that was included in the former Grantor Trust. (c) Includes certain interests in securitizations. (d) Includes seed capital, private equity investments and other assets. Assets measured at fair value on a recurring basis at Dec. 31, 2019 Total carrying value (dollars in millions) Level 1 Level 2 Level 3 Netting (a) Available-for-sale securities: Agency RMBS $ — $ 27,043 $ — $ — $ 27,043 U.S. Treasury 15,431 — — — 15,431 Sovereign debt/sovereign guaranteed 7,784 4,862 — — 12,646 Agency commercial MBS — 9,417 — — 9,417 Foreign covered bonds — 4,197 — — 4,197 CLOs — 4,063 — — 4,063 Supranational — 3,709 — — 3,709 Foreign government agencies — 2,643 — — 2,643 Non-agency commercial MBS — 2,178 — — 2,178 Other ABS — 2,143 — — 2,143 U.S. government agencies — 1,949 — — 1,949 Non-agency RMBS (b) — 1,233 — — 1,233 State and political subdivisions — 1,044 — — 1,044 Corporate bonds — 853 — — 853 Other debt securities — 1 — — 1 Total available-for-sale securities 23,215 65,335 — — 88,550 Trading assets: Debt instruments 1,568 4,243 — — 5,811 Equity instruments (c) 4,539 — — — 4,539 Derivative assets not designated as hedging: Interest rate 4 3,686 — (1,792 ) 1,898 Foreign exchange — 5,331 — (4,021 ) 1,310 Equity and other contracts — 19 — (6 ) 13 Total derivative assets not designated as hedging 4 9,036 — (5,819 ) 3,221 Total trading assets 6,111 13,279 — (5,819 ) 13,571 Other assets : Derivative assets designated as hedging: Foreign exchange — 21 — — 21 Total derivative assets designated as hedging — 21 — — 21 Other assets (d) 38 179 — — 217 Assets measured at NAV (d) 181 Subtotal assets of operations at fair value 29,364 78,814 — (5,819 ) 102,540 Percentage of assets of operations prior to netting 27 % 73 % — % Assets of consolidated investment management funds 212 33 — — 245 Total assets $ 29,576 $ 78,847 $ — $ (5,819 ) $ 102,785 Percentage of total assets prior to netting 27 % 73 % — % Liabilities measured at fair value on a recurring basis at Dec. 31, 2019 Total carrying value (dollars in millions) Level 1 Level 2 Level 3 Netting (a) Trading liabilities: Debt instruments $ 1,477 $ 107 $ — $ — $ 1,584 Equity instruments 73 — — — 73 Derivative liabilities not designated as hedging: Interest rate 6 3,244 — (1,986 ) 1,264 Foreign exchange — 5,340 — (3,428 ) 1,912 Equity and other contracts 3 6 — (1 ) 8 Total derivative liabilities not designated as hedging 9 8,590 — (5,415 ) 3,184 Total trading liabilities 1,559 8,697 — (5,415 ) 4,841 Long-term debt (c) — 387 — — 387 Other liabilities – derivative liabilities designated as hedging: Interest rate — 350 — — 350 Foreign exchange — 257 — — 257 Total other liabilities – derivative liabilities designated as hedging — 607 — — 607 Subtotal liabilities of operations at fair value 1,559 9,691 — (5,415 ) 5,835 Percentage of liabilities of operations prior to netting 14 % 86 % — % Liabilities of consolidated investment management funds 1 — — — 1 Total liabilities $ 1,560 $ 9,691 $ — $ (5,415 ) $ 5,836 Percentage of total liabilities prior to netting 14 % 86 % — % (a) ASC 815, Derivatives and Hedging, permits the netting of derivative receivables and derivative payables under legally enforceable master netting agreements and permits the netting of cash collateral. Netting is applicable to derivatives not designated as hedging instruments included in trading assets or trading liabilities and derivatives designated as hedging instruments included in other assets or other liabilities. Netting is allocated to the derivative products based on the net fair value of each product. (b) Includes $640 million in Level 2 that was included in the former Grantor Trust. (c) Includes certain interests in securitizations. (d) Includes seed capital, private equity investments and other assets.
Details Of Certain Items Measured At Fair Value on Recurring Basis	Details of certain available-for-sale securities measured at fair value on a recurring basis June 30, 2020 Dec. 31, 2019 Total carrying value Ratings (a) Total carrying value Ratings (a) AAA/ AA- A+/ A- BBB+/ BBB- BB+ and lower AAA/ AA- A+/ A- BBB+/ BBB- BB+ and lower (dollars in millions) (b) (b) Non-agency RMBS (c) , originated in: 2007-2020 $ 938 82 % 1 % — % 17 % $ 464 55 % 1 % — % 44 % 2006 250 — 22 — 78 291 — 21 — 79 2005 262 5 2 7 86 305 5 2 8 85 2004 and earlier 148 21 22 8 49 173 22 24 4 50 Total non-agency RMBS $ 1,598 51 % 6 % 2 % 41 % $ 1,233 25 % 9 % 3 % 63 % Non-agency commercial MBS originated in: 2009-2020 $ 2,630 100 % — % — % — % $ 2,178 98 % 2 % — % — % Foreign covered bonds: Canada $ 2,241 100 % — % — % — % $ 1,798 100 % — % — % — % UK 1,093 100 — — — 984 100 — — — Australia 750 100 — — — 431 100 — — — Norway 533 100 — — — 287 100 — — — Germany 407 100 — — — 357 100 — — — Other 495 100 — — — 340 100 — — — Total foreign covered bonds $ 5,519 100 % — % — % — % $ 4,197 100 % — % — % — % Sovereign debt/sovereign guaranteed: UK $ 3,773 100 % — % — % — % $ 3,318 100 % — % — % — % Germany 2,346 100 — — — 1,997 100 — — — France 2,238 100 — — — 1,272 100 — — — Spain 1,961 — 4 96 — 1,453 — 6 94 — Italy 1,069 — — 100 — 1,260 — — 100 — Singapore 931 100 — — — 742 100 — — — Ireland 676 29 71 — — 301 — 100 — — Netherlands 564 100 — — — 791 100 — — — Canada 502 100 — — — 271 100 — — — Japan 434 — 100 — — 274 — 100 — — Belgium 411 100 — — — 79 100 — — — Austria 331 100 — — — 240 100 — — — Hong Kong 330 100 — — — 411 100 — — — Other (d) 321 45 — 21 34 237 39 4 — 57 Total sovereign debt/sovereign guaranteed $ 15,887 74 % 6 % 19 % 1 % $ 12,646 73 % 5 % 21 % 1 % Foreign government agencies: Germany $ 1,398 100 % — % — % — % $ 1,131 100 % — % — % — % Netherlands 730 100 — — — 678 100 — — — Canada 321 62 38 — — 71 — 100 — — France 281 100 — — — 42 100 — — — Sweden 276 100 — — — 202 100 — — — Finland 241 100 — — — 245 100 — — — Other 331 84 16 — — 274 79 21 — — Total foreign government agencies $ 3,578 95 % 5 % — % — % $ 2,643 95 % 5 % — % — % (a) Represents ratings by S&P or the equivalent. (b) At June 30, 2020 and Dec. 31, 2019 , sovereign debt/sovereign guaranteed securities were included in Level 1 and Level 2 in the valuation hierarchy. All other assets in the table are Level 2 assets in the valuation hierarchy. (c) Includes $538 million at June 30, 2020 and $640 million at Dec. 31, 2019 that were included in the former Grantor Trust. (d) Includes non-investment grade sovereign debt/sovereign guaranteed securities related to Brazil of $109 million at June 30, 2020 and $134 million at Dec. 31, 2019 .
Assets Measured at Fair Value on Nonrecurring Basis	The following table presents the financial instruments carried on the consolidated balance sheet by caption and level in the fair value hierarchy as of June 30, 2020 and Dec. 31, 2019 . Assets measured at fair value on a nonrecurring basis June 30, 2020 Dec. 31, 2019 Total carrying value Total carrying value (in millions) Level 1 Level 2 Level 3 Level 1 Level 2 Level 3 Loans (a) $ — $ 53 $ — $ 53 $ — $ 58 $ — $ 58 Other assets (b) — 107 — 107 — 64 — 64 Total assets at fair value on a nonrecurring basis $ — $ 160 $ — $ 160 $ — $ 122 $ — $ 122 (a) The fair value of these loans decreased less than $1 million in the second quarter of 2020 and the fourth quarter of 2019, based on the fair value of the underlying collateral, as required by guidance in ASC 326, Financial Instruments – Credit Losses, with an offset to the allowance for credit losses. (b) Includes non-readily marketable equity securities carried at cost with upward or downward adjustments and other assets received in satisfaction of debt.
Summary of Financial Instruments Not Carried at Fair Value	The following tables present the estimated fair value and the carrying amount of financial instruments not carried at fair value on the consolidated balance sheet at June 30, 2020 and Dec. 31, 2019 , by caption on the consolidated balance sheet and by the valuation hierarchy. Summary of financial instruments June 30, 2020 (in millions) Level 1 Level 2 Level 3 Total Carrying Assets: Interest-bearing deposits with the Federal Reserve and other central banks $ — $ 112,728 $ — $ 112,728 $ 112,728 Interest-bearing deposits with banks — 18,063 — 18,063 18,045 Federal funds sold and securities purchased under resale agreements — 36,638 — 36,638 36,638 Securities held-to-maturity 5,815 40,168 — 45,983 44,615 Loans (a) — 54,377 — 54,377 54,067 Other financial assets 4,776 1,165 — 5,941 5,941 Total $ 10,591 $ 263,139 $ — $ 273,730 $ 272,034 Liabilities: Noninterest-bearing deposits $ — $ 78,100 $ — $ 78,100 $ 78,100 Interest-bearing deposits — 226,917 — 226,917 227,370 Federal funds purchased and securities sold under repurchase agreements — 14,512 — 14,512 14,512 Payables to customers and broker-dealers — 25,012 — 25,012 25,012 Commercial paper — 665 — 665 665 Borrowings — 1,852 — 1,852 1,852 Long-term debt — 28,875 — 28,875 27,167 Total $ — $ 375,933 $ — $ 375,933 $ 374,678 (a) Does not include the leasing portfolio. Summary of financial instruments Dec. 31, 2019 (in millions) Level 1 Level 2 Level 3 Total estimated Carrying Assets: Interest-bearing deposits with the Federal Reserve and other central banks $ — $ 95,042 $ — $ 95,042 $ 95,042 Interest-bearing deposits with banks — 14,832 — 14,832 14,811 Federal funds sold and securities purchased under resale agreements — 30,182 — 30,182 30,182 Securities held-to-maturity 4,630 30,175 — 34,805 34,483 Loans (a) — 54,194 — 54,194 53,718 Other financial assets 4,830 1,233 — 6,063 6,063 Total $ 9,460 $ 225,658 $ — $ 235,118 $ 234,299 Liabilities: Noninterest-bearing deposits $ — $ 57,630 $ — $ 57,630 $ 57,630 Interest-bearing deposits — 200,846 — 200,846 201,836 Federal funds purchased and securities sold under repurchase agreements — 11,401 — 11,401 11,401 Payables to customers and broker-dealers — 18,758 — 18,758 18,758 Commercial paper — 3,959 — 3,959 3,959 Borrowings — 917 — 917 917 Long-term debt — 27,858 — 27,858 27,114 Total $ — $ 321,369 $ — $ 321,369 $ 321,615 (a) Does not include the leasing portfolio.

Fair value option (Tables)

Fair value option (Tables)	6 Months Ended
	Jun. 30, 2020
Fair Value Disclosures [Abstract]
Assets and Liabilities of Consolidated Investment Management Funds, at Fair Value	The following table presents the changes in fair value of long-term debt recorded in foreign exchange and other trading revenue in the consolidated income statement. Change in fair value of long-term debt (a) (in millions) 2Q20 1Q20 2Q19 YTD20 YTD19 Foreign exchange and other trading revenue $ (2 ) $ (10 ) $ (7 ) $ (12 ) $ (12 ) (a) The changes in fair value are approximately offset by an economic hedge included in foreign exchange and other trading revenue. Assets and liabilities of consolidated investment management funds, at fair value June 30, 2020 Dec. 31, 2019 (in millions) Assets of consolidated investment management funds: Trading assets $ 450 $ 229 Other assets 10 16 Total assets of consolidated investment management funds $ 460 $ 245 Liabilities of consolidated investment management funds: Other liabilities 4 1 Total liabilities of consolidated investment management funds $ 4 $ 1

Derivative instruments (Tables)

Derivative instruments (Tables)	6 Months Ended
	Jun. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Gains (Losses) Related to Hedging	The following table presents the pre-tax gains (losses) related to our fair value and cash flow hedging activities recognized in the consolidated income statement. Income statement impact of fair value and cash flow hedges (in millions) Location of gains (losses) 2Q20 1Q20 2Q19 YTD20 YTD19 Interest rate fair value hedges of available-for-sale securities Derivative Interest revenue $ 19 $ (1,033 ) $ (486 ) $ (1,014 ) $ (869 ) Hedged item Interest revenue (15 ) 1,011 480 996 856 Interest rate fair value hedges of long-term debt Derivative Interest expense 47 714 300 761 485 Hedged item Interest expense (49 ) (708 ) (298 ) (757 ) (482 ) Foreign exchange fair value hedges of available-for-sale securities Derivative (a) Other revenue 5 7 (5 ) 12 1 Hedged item Other revenue (5 ) (7 ) 5 (12 ) — Cash flow hedges of forecasted FX exposures (Loss) gain reclassified from OCI into income Staff expense (3 ) 1 — (2 ) (1 ) (Loss) recognized in the consolidated income statement due to fair value and cash flow hedging relationships $ (1 ) $ (15 ) $ (4 ) $ (16 ) $ (10 ) (a) Includes gains of less than $1 million in the second quarter of 2020 and first quarter of 2020 , a de minimis gain in the second quarter of 2019 , a gain of less than $1 million in the first six months of 2020 and a gain of $1 million in the first six months of 2019 associated with the amortization of the excluded component. At June 30, 2020 and Dec. 31, 2019 , the remaining accumulated OCI balance associated with the excluded component was de minimis.
Impacts of Hedging Derivatives in Net Investment Hedging Relationships	The following table presents the impact of hedging derivatives used in net investment hedging relationships. Impact of derivative instruments used in net investment hedging relationships (in millions) Derivatives in net investment hedging relationships Gain or (loss) recognized in accumulated OCI on derivatives Location of gain or (loss) reclassified from accumulated OCI into income Gain or (loss) reclassified from accumulated OCI into income 2Q20 1Q20 2Q19 YTD20 YTD19 2Q20 1Q20 2Q19 YTD20 YTD19 FX contracts $ (45 ) $ 437 $ 76 $ 392 $ 70 Net interest revenue $ — $ — $ — $ — $ —
Summary of Hedged Items in Fair Value Hedging Relationships	The following table presents information on the hedged items in fair value hedging relationships. Hedged items in fair value hedging relationships Carrying amount of hedged asset or liability Hedge accounting basis adjustment increase (decrease) (a) (in millions) June 30, 2020 Dec. 31, 2019 June 30, 2020 Dec. 31, 2019 Available-for-sale securities (b)(c) $ 13,952 $ 13,792 $ 1,817 $ 687 Long-term debt $ 14,956 $ 13,945 $ 919 $ 116 (a) Includes $196 million and $53 million of basis adjustment increases on discontinued hedges associated with available-for-sale securities at June 30, 2020 and Dec. 31, 2019 , respectively, and $156 million and $200 million of basis adjustment decreases on discontinued hedges associated with long-term debt at June 30, 2020 and Dec. 31, 2019 , respectively. (b) Excludes hedged items where only foreign currency risk is the designated hedged risk, as the basis adjustments related to foreign currency hedges will not reverse through the consolidated income statement in future periods. The carrying amount excluded for available-for-sale securities was $131 million at June 30, 2020 and $142 million at Dec. 31, 2019 . (c) Carrying amount represents the amortized cost.
Impact of Derivative Instruments on the Balance Sheet	The following table summarizes the notional amount and carrying values of our total derivative portfolio at June 30, 2020 and Dec. 31, 2019 . Impact of derivative instruments on the balance sheet Notional value Asset derivatives fair value Liability derivatives fair value June 30, 2020 Dec. 31, 2019 June 30, 2020 Dec. 31, 2019 June 30, 2020 Dec. 31, 2019 (in millions) Derivatives designated as hedging instruments: (a)(b) Interest rate contracts $ 27,775 $ 28,365 $ — $ — $ 915 $ 350 Foreign exchange contracts 8,040 8,390 137 21 49 257 Total derivatives designated as hedging instruments $ 137 $ 21 $ 964 $ 607 Derivatives not designated as hedging instruments: (b)(c) Interest rate contracts $ 217,613 $ 306,790 $ 5,501 $ 3,690 $ 4,668 $ 3,250 Foreign exchange contracts 781,991 848,961 4,322 5,331 4,036 5,340 Equity contracts 1,657 3,189 13 19 22 5 Credit contracts 165 165 — — 2 4 Total derivatives not designated as hedging instruments $ 9,836 $ 9,040 $ 8,728 $ 8,599 Total derivatives fair value (d) $ 9,973 $ 9,061 $ 9,692 $ 9,206 Effect of master netting agreements (e) (5,640 ) (5,819 ) (5,817 ) (5,415 ) Fair value after effect of master netting agreements $ 4,333 $ 3,242 $ 3,875 $ 3,791 (a) The fair value of asset derivatives and liability derivatives designated as hedging instruments is recorded as other assets and other liabilities, respectively, on the consolidated balance sheet. (b) For derivative transactions settled at clearing organizations, cash collateral exchanged is deemed a settlement of the derivative each day. The settlement reduces the gross fair value of derivative assets and liabilities and results in a corresponding decrease in the effect of master netting agreements, with no impact to the consolidated balance sheet. (c) The fair value of asset derivatives and liability derivatives not designated as hedging instruments is recorded as trading assets and trading liabilities, respectively, on the consolidated balance sheet. (d) Fair values are on a gross basis, before consideration of master netting agreements, as required by ASC 815, Derivatives and Hedging. (e) Effect of master netting agreements includes cash collateral received and paid of $869 million and $1,046 million , respectively, at June 30, 2020 , and $1,022 million and $618 million , respectively, at Dec. 31, 2019 .
Revenue from Foreign Exchange and Other Trading	The following table presents our foreign exchange and other trading revenue. Foreign exchange and other trading revenue (in millions) 2Q20 1Q20 2Q19 YTD20 YTD19 Foreign exchange $ 174 $ 253 $ 150 $ 427 $ 310 Other trading (loss) revenue (8 ) 66 16 58 26 Total foreign exchange and other trading revenue $ 166 $ 319 $ 166 $ 485 $ 336
Fair Value of Derivative Contracts Falling under Early Termination Provisions that were in Net Liability Position	The following table shows the aggregate fair value of OTC derivative contracts in net liability positions that contained credit-risk contingent features and the value of collateral that has been posted. June 30, 2020 Dec. 31, 2019 (in millions) Aggregate fair value of OTC derivatives in net liability positions (a) $ 5,951 $ 3,442 Collateral posted $ 6,372 $ 3,671 (a) Before consideration of cash collateral. The following table shows the fair value of contracts falling under early termination provisions that were in net liability positions for three key ratings triggers. Potential close-out exposures (fair value) (a) June 30, 2020 Dec. 31, 2019 (in millions) If The Bank of New York Mellon’s rating changed to: (b) A3/A- $ 31 $ 56 Baa2/BBB $ 558 $ 608 Ba1/BB+ $ 2,981 $ 2,084 (a) The amounts represent potential total close-out values if The Bank of New York Mellon’s long-term issuer rating were to immediately drop to the indicated levels, and do not reflect collateral posted. (b) Represents ratings by Moody’s/S&P.
Offsetting Assets	The following tables present derivative and financial instruments and their related offsets. There were no derivative instruments or financial instruments subject to a legally enforceable netting agreement for which we are not currently netting. Offsetting of derivative assets and financial assets at June 30, 2020 Gross assets recognized Gross amounts offset in the balance sheet Net assets recognized in the balance sheet Gross amounts not offset in the balance sheet (in millions) (a) Financial instruments Cash collateral received Net amount Derivatives subject to netting arrangements: Interest rate contracts $ 3,549 $ 2,436 $ 1,113 $ 384 $ — $ 729 Foreign exchange contracts 4,026 3,204 822 7 — 815 Equity and other contracts 9 — 9 1 — 8 Total derivatives subject to netting arrangements 7,584 5,640 1,944 392 — 1,552 Total derivatives not subject to netting arrangements 2,389 — 2,389 — — 2,389 Total derivatives 9,973 5,640 4,333 392 — 3,941 Reverse repurchase agreements 72,781 48,615 (b) 24,166 24,140 — 26 Securities borrowing 12,472 — 12,472 11,843 — 629 Total $ 95,226 $ 54,255 $ 40,971 $ 36,375 $ — $ 4,596 (a) Includes the effect of netting agreements and net cash collateral received. The offset related to the OTC derivatives was allocated to the various types of derivatives based on the net positions. (b) Offsetting of reverse repurchase agreements relates to our involvement in the Fixed Income Clearing Corporation (“FICC”), where we settle government securities transactions on a net basis for payment and delivery through the Fedwire system. Offsetting of derivative assets and financial assets at Dec. 31, 2019 Gross assets recognized Gross amounts offset in the balance sheet Net assets recognized in the balance sheet Gross amounts not offset in the balance sheet (in millions) (a) Financial instruments Cash collateral received Net amount Derivatives subject to netting arrangements: Interest rate contracts $ 2,394 $ 1,792 $ 602 $ 207 $ — $ 395 Foreign exchange contracts 4,861 4,021 840 44 — 796 Equity and other contracts 9 6 3 — — 3 Total derivatives subject to netting arrangements 7,264 5,819 1,445 251 — 1,194 Total derivatives not subject to netting arrangements 1,797 — 1,797 — — 1,797 Total derivatives 9,061 5,819 3,242 251 — 2,991 Reverse repurchase agreements 112,355 93,794 (b) 18,561 18,554 — 7 Securities borrowing 11,621 — 11,621 11,278 — 343 Total $ 133,037 $ 99,613 $ 33,424 $ 30,083 $ — $ 3,341 (a) Includes the effect of netting agreements and net cash collateral received. The offset related to the OTC derivatives was allocated to the various types of derivatives based on the net positions. (b) Offsetting of reverse repurchase agreements relates to our involvement in the FICC, where we settle government securities transactions on a net basis for payment and delivery through the Fedwire system.
Offsetting Liabilities	Offsetting of derivative liabilities and financial liabilities at June 30, 2020 Net liabilities recognized in the balance sheet Gross liabilities recognized Gross amounts offset in the balance sheet Gross amounts not offset in the balance sheet (in millions) (a) Financial instruments Cash collateral pledged Net amount Derivatives subject to netting arrangements: Interest rate contracts $ 5,563 $ 2,680 $ 2,883 $ 2,849 $ — $ 34 Foreign exchange contracts 3,690 3,134 556 150 — 406 Equity and other contracts 22 3 19 — — 19 Total derivatives subject to netting arrangements 9,275 5,817 3,458 2,999 — 459 Total derivatives not subject to netting arrangements 417 — 417 — — 417 Total derivatives 9,692 5,817 3,875 2,999 — 876 Repurchase agreements 59,794 48,615 (b) 11,179 11,175 — 4 Securities lending 982 — 982 962 — 20 Total $ 70,468 $ 54,432 $ 16,036 $ 15,136 $ — $ 900 (a) Includes the effect of netting agreements and net cash collateral paid. The offset related to the OTC derivatives was allocated to the various types of derivatives based on the net positions. (b) Offsetting of repurchase agreements relates to our involvement in the FICC, where we settle government securities transactions on a net basis for payment and delivery through the Fedwire system. Offsetting of derivative liabilities and financial liabilities at Dec. 31, 2019 Net liabilities recognized in the balance sheet Gross liabilities recognized Gross amounts offset in the balance sheet Gross amounts not offset in the balance sheet (in millions) (a) Financial instruments Cash collateral pledged Net amount Derivatives subject to netting arrangements: Interest rate contracts $ 3,550 $ 1,986 $ 1,564 $ 1,539 $ — $ 25 Foreign exchange contracts 4,873 3,428 1,445 74 — 1,371 Equity and other contracts 5 1 4 2 — 2 Total derivatives subject to netting arrangements 8,428 5,415 3,013 1,615 — 1,398 Total derivatives not subject to netting arrangements 778 — 778 — — 778 Total derivatives 9,206 5,415 3,791 1,615 — 2,176 Repurchase agreements 104,451 93,794 (b) 10,657 10,657 — — Securities lending 718 — 718 694 — 24 Total $ 114,375 $ 99,209 $ 15,166 $ 12,966 $ — $ 2,200 (a) Includes the effect of netting agreements and net cash collateral paid. The offset related to the OTC derivatives was allocated to the various types of derivatives based on the net positions. (b) Offsetting of repurchase agreements relates to our involvement in the FICC, where we settle government securities transactions on a net basis for payment and delivery through the Fedwire system.
Transfer of Certain Financial Assets Accounted for as Secured Borrowings	The following table presents the contract value of repurchase agreements and securities lending transactions accounted for as secured borrowings by the type of collateral provided to counterparties. Repurchase agreements and securities lending transactions accounted for as secured borrowings June 30, 2020 Dec. 31, 2019 Remaining contractual maturity Total Remaining contractual maturity Total (in millions) Overnight and continuous Up to 30 days 30 days or more Overnight and continuous Up to 30 days 30 days or more Repurchase agreements: U.S. Treasury $ 52,950 $ 300 $ 109 $ 53,359 $ 94,788 $ 10 $ — $ 94,798 U.S. government agencies 642 — — 642 594 16 — 610 Agency RMBS 1,384 — 149 1,533 4,234 774 — 5,008 Corporate bonds 195 23 1,272 1,490 266 236 1,617 2,119 Other debt securities 93 79 1,749 1,921 40 188 1,079 1,307 Equity securities — 98 751 849 31 99 479 609 Total $ 55,264 $ 500 $ 4,030 $ 59,794 $ 99,953 $ 1,323 $ 3,175 $ 104,451 Securities lending: U.S. government agencies $ 21 $ — $ — $ 21 $ 19 $ — $ — $ 19 Other debt securities 191 — — 191 201 — — 201 Equity securities 770 — — 770 498 — — 498 Total $ 982 $ — $ — $ 982 $ 718 $ — $ — $ 718 Total secured borrowings $ 56,246 $ 500 $ 4,030 $ 60,776 $ 100,671 $ 1,323 $ 3,175 $ 105,169

Commitments and contingent li_2

Commitments and contingent liabilities (Tables)	6 Months Ended
	Jun. 30, 2020
Commitments and Contingencies Disclosure [Abstract]
Summary of Off-Balance Sheet Credit Risks, Net of Participations	The following table presents a summary of our off-balance sheet credit risks. Off-balance sheet credit risks June 30, 2020 Dec. 31, 2019 (in millions) Lending commitments $ 49,147 $ 49,119 Standby letters of credit (“SBLC”) (a) 2,291 2,298 Commercial letters of credit 59 74 Securities lending indemnifications (b)(c) 417,924 408,378 (a) Net of participations totaling $145 million at June 30, 2020 and $146 million at Dec. 31, 2019 . (b) Excludes the indemnification for securities for which BNY Mellon acts as an agent on behalf of CIBC Mellon clients, which totaled $58 billion at June 30, 2020 and $57 billion at Dec. 31, 2019 . (c) Includes cash collateral, invested in indemnified repurchase agreements, held by us as securities lending agent of $40 billion at June 30, 2020 and $37 billion at Dec. 31, 2019 .
Standby Letters of Credits by Investment Grade	The table below shows SBLCs by investment grade: Standby letters of credit June 30, 2020 Dec. 31, 2019 Investment grade 89 % 90 % Non-investment grade 11 % 10 %
Summary of Credit Exposure in the Financial Institutions and Commercial Portfolios	The tables below present our credit exposure in the financial institutions and commercial portfolios. Financial institutions portfolio exposure (in billions) June 30, 2020 Loans Unfunded commitments Total exposure Securities industry $ 1.6 $ 24.5 $ 26.1 Banks 7.0 1.1 8.1 Asset managers 1.3 6.3 7.6 Insurance 0.1 2.7 2.8 Government 0.1 0.2 0.3 Other 0.7 0.7 1.4 Total $ 10.8 $ 35.5 $ 46.3 Commercial portfolio exposure (in billions) June 30, 2020 Loans Unfunded commitments Total exposure Manufacturing $ 1.1 $ 3.5 $ 4.6 Services and other 1.1 3.3 4.4 Energy and utilities 0.1 4.1 4.2 Media and telecom 0.1 0.9 1.0 Total $ 2.4 $ 11.8 $ 14.2

Lines of business (Tables)

Lines of business (Tables)	6 Months Ended
	Jun. 30, 2020
Segment Reporting [Abstract]
Contribution of Segments to Overall Profitability	The following consolidating schedules present the contribution of our businesses to our overall profitability. For the quarter ended June 30, 2020 Investment Investment and Wealth Other Consolidated (dollars in millions) Total fee and other revenue $ 2,339 $ 838 (a) $ 38 $ 3,215 (a) Net interest revenue (expense) 768 48 (36 ) 780 Total revenue 3,107 886 (a) 2 3,995 (a) Provision for credit losses 145 7 (9 ) 143 Noninterest expense 1,989 658 39 2,686 Income (loss) before income taxes $ 973 $ 221 (a) $ (28 ) $ 1,166 (a) Pre-tax operating margin (b) 31 % 25 % N/M 29 % Average assets $ 335,288 $ 30,327 $ 49,744 $ 415,359 (a) Total fee and other revenue includes net income from consolidated investment management funds of $39 million , representing $54 million of income and noncontrolling interests of $15 million . Total revenue and income before income taxes are net of noncontrolling interests of $15 million . (b) Income before income taxes divided by total revenue. N/M - Not meaningful. For the quarter ended March 31, 2020 Investment Investment and Wealth Other Consolidated (dollars in millions) Total fee and other revenue $ 2,436 $ 846 (a) $ 30 $ 3,312 (a) Net interest revenue (expense) 806 52 (44 ) 814 Total revenue (loss) 3,242 898 (a) (14 ) 4,126 (a) Provision for credit losses 149 9 11 169 Noninterest expense 1,987 695 30 2,712 Income (loss) before income taxes $ 1,106 $ 194 (a) $ (55 ) $ 1,245 (a) Pre-tax operating margin (b) 34 % 22 % N/M 30 % Average assets $ 304,089 $ 30,543 $ 50,646 $ 385,278 (a) Total fee and other revenue includes net loss from consolidated investment management funds of $20 million , representing $38 million of losses and a loss attributable to noncontrolling interests of $18 million . Total revenue and income before income taxes are net of a loss attributable to noncontrolling interests of $18 million . (b) Income before income taxes divided by total revenue. N/M - Not meaningful. For the quarter ended June 30, 2019 Investment Investment and Wealth Other Consolidated (dollars in millions) Total fee and other revenue $ 2,233 $ 854 (a) $ 31 $ 3,118 (a) Net interest revenue (expense) 783 59 (40 ) 802 Total revenue (loss) 3,016 913 (a) (9 ) 3,920 (a) Provision for credit losses (4 ) (2 ) (2 ) (8 ) Noninterest expense 1,963 655 29 2,647 Income (loss) before income taxes $ 1,057 $ 260 (a) $ (36 ) $ 1,281 (a) Pre-tax operating margin (b) 35 % 29 % N/M 33 % Average assets $ 264,781 $ 29,793 $ 47,810 $ 342,384 (a) Total fee and other revenue includes net income from consolidated investment management funds of $6 million , representing $10 million of income and noncontrolling interests of $4 million . Total revenue and income before income taxes are net of noncontrolling interests of $4 million . (b) Income before income taxes divided by total revenue. N/M - Not meaningful. For the six months ended June 30, 2020 Investment Investment and Wealth Other Consolidated (dollars in millions) Total fee and other revenue $ 4,775 $ 1,684 (a) $ 68 $ 6,527 (a) Net interest revenue (expense) 1,574 100 (80 ) 1,594 Total revenue (loss) 6,349 1,784 (a) (12 ) 8,121 (a) Provision for credit losses 294 16 2 312 Noninterest expense 3,976 1,353 69 5,398 Income (loss) before income taxes $ 2,079 $ 415 (a) $ (83 ) $ 2,411 (a) Pre-tax operating margin (b) 33 % 23 % N/M 30 % Average assets $ 319,689 $ 30,435 $ 50,194 $ 400,318 (a) Total fee and other revenue includes net income from consolidated investment management funds of $19 million , representing $16 million of income and a loss attributable to noncontrolling interests of $3 million . Total revenue and income before income taxes are net of a loss attributable to noncontrolling interests of $3 million . (b) Income before income taxes divided by total revenue. N/M - Not meaningful. For the six months ended June 30, 2019 Investment Investment and Wealth Other Consolidated (dollars in millions) Total fee and other revenue $ 4,394 $ 1,723 (a) $ 49 $ 6,166 (a) Net interest revenue (expense) 1,587 126 (70 ) 1,643 Total revenue (loss) 5,981 1,849 (a) (21 ) 7,809 (a) Provision for credit losses 4 (1 ) (4 ) (1 ) Noninterest expense 3,944 1,324 78 5,346 Income (loss) before income taxes $ 2,033 $ 526 (a) $ (95 ) $ 2,464 (a) Pre-tax operating margin (b) 34 % 28 % N/M 32 % Average assets $ 260,432 $ 30,819 $ 48,041 $ 339,292 (a) Total fee and other revenue includes net income from consolidated investment management funds of $22 million , representing $36 million of income and noncontrolling interests of $14 million . Total revenue and income before income taxes are net of noncontrolling interests of $14 million . (b) Income before income taxes divided by total revenue. N/M - Not meaningful.

Supplemental information to t_2

Supplemental information to the Consolidated Statement of Cash Flows (Tables)	6 Months Ended
	Jun. 30, 2020
Supplemental Cash Flow Information [Abstract]
Noncash Investing and Financing Transactions that are Not Reflected in Consolidated Statement of Cash Flows	Non-cash investing and financing transactions that, appropriately, are not reflected in the consolidated statement of cash flows are listed below. Non-cash investing and financing transactions Six months ended June 30, (in millions) 2020 2019 Change in assets of consolidated investment management funds $ 215 $ 76 Change in liabilities of consolidated investment management funds 3 4 Change in nonredeemable noncontrolling interests of consolidated investment management funds 10 65 Securities purchased not settled 1,730 1,113 Securities matured not settled — 10 Premises and equipment/capitalized software funded by finance lease obligations — 14 Premises and equipment/operating lease obligations 66 1,272 (a) Investment redemptions not settled — — (a) Includes $1,244 million related to the adoption of ASU 2016-02, Leases, and $28 million related to new or modified leases.

Accounting changes and new ac_4

Accounting changes and new accounting guidance - Narrative (Details) - USD ($)

6 Months Ended

12 Months Ended

Jun. 30, 2020

Jun. 30, 2019

Dec. 31, 2019

Dec. 31, 2018

Mar. 31, 2020

Jan. 01, 2020

Mar. 31, 2019

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Accounting Standards Update [Extensible List]

us-gaap:AccountingStandardsUpdate201613Member

us-gaap:AccountingStandardsUpdate201602Member

us-gaap:AccountingStandardsUpdate201613Member

us-gaap:AccountingStandardsUpdate201802Member

Adjustment for the cumulative effect of applying the ASU

$ 43,809,000,000

[1],[2]

$ 41,699,000,000

[3],[4]

$ 41,585,000,000

[2],[5]

$ 40,739,000,000

[4]

$ 41,239,000,000

[1],[5]

$ 41,347,000,000

[3]

Minimum loan amount required to measure impairment allowance

1,000,000

Retained earnings

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Adjustment for the cumulative effect of applying the ASU

$ 33,224,000,000

$ 30,081,000,000

31,894,000,000

28,652,000,000

$ 32,601,000,000

$ 29,382,000,000

Commercial Loan

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Threshold period past due for nonaccrual status

90 days

First Lien Residential Mortgage

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Threshold period past due subject to impairment test

90 days

Second Lien Residential Mortgage

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Threshold period past due subject to further impairment testing

90 days

Cumulative Effect, Period Of Adoption, Adjustment

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Adjustment for the cumulative effect of applying the ASU

40,000,000

0

Cumulative Effect, Period Of Adoption, Adjustment | Retained earnings

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Adjustment for the cumulative effect of applying the ASU

$ 45,000,000

$ 90,000,000

$ 45,000,000

[1]

Includes total The Bank of New York Mellon Corporation common shareholders’ equity of $37,603 million at March 31, 2020 and $39,165 million at June 30, 2020 .

[2]

Includes total The Bank of New York Mellon Corporation common shareholders’ equity of $37,941 million at Dec. 31, 2019 and $39,165 million at June 30, 2020 .

[3]

Includes total The Bank of New York Mellon Corporation common shareholders’ equity of $37,683 million at March 31, 2019 and $37,991 million at June 30, 2019 .

[4]

Includes total The Bank of New York Mellon Corporation common shareholders’ equity of $37,096 million at Dec. 31, 2018 and $37,991 million at June 30, 2019 .

[5]

Includes total The Bank of New York Mellon Corporation common shareholders’ equity of $37,941 million at Dec. 31, 2019 and $37,603 million at March 31, 2020 .

Accounting changes and new ac_5

Accounting changes and new accounting guidance - Allowance for Credit Losses (Details) - USD ($) $ in Millions	Jun. 30, 2020	Mar. 31, 2020	Jan. 01, 2020	Dec. 31, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses, loans	$ 454	$ 288		$ 216	$ 241	$ 248	$ 252
Securities	12
Allowance for credit losses			$ 161
Reclassification of credit-related reserves on accounts receivable			4
Cumulative Effect, Period Of Adoption, Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses, loans			(69)	$ (69)
Securities			7
Other			3
Allowance for credit losses			(59)
Loans
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses, loans	302	140	48		146
Lending-related commitments
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit losses, loans	$ 152	$ 148	$ 21		$ 95

Acquisitions and dispositions -

Acquisitions and dispositions - Narrative (Details) - USD ($) $ in Millions	Nov. 08, 2019	Jun. 30, 2020	Jun. 30, 2020
Business Acquisition [Line Items]
Contingent payments		$ 3	$ 3
Potential obligation to pay additional consideration, lower range		5	5
Potential obligation to pay additional consideration, upper range		$ 10	$ 10
Contingent consideration payment period			2 years
Promontory Interfinancial Network
Business Acquisition [Line Items]
Gain on disposal	$ 622

Securities - Amortized Cost, Gr

Securities - Amortized Cost, Gross Unrealized Gains and Losses and Fair Value (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Available-for-sale:
Amortized cost	$ 106,668	$ 87,435
Gross unrealized, Gain	3,634	1,353
Gross unrealized, Loss	235	238
Available-for-sale	110,067	88,550
Held-to-maturity:
Amortized cost	44,615	34,483
Gross unrealized, Gains	1,383	377
Gross unrealized, Losses	15	55
Securities held-to-maturity	45,983	34,805
Amortized cost, Total	151,283	121,918
Gross unrealized, Gain, Total	5,017	1,730
Gross unrealized, Losses, Total	250	293
Fair value, Total	156,050	123,355
Debt securities, available-for-sale, allowance for credit loss	12
AOCI, transfers from AFS to HTM Securities, gross unrealized gains	28	32
AOCI, transfers from AFS to HTM Securities, gross unrealized losses	55	65
Agency RMBS
Available-for-sale:
Amortized cost	26,005	27,022
Gross unrealized, Gain	516	164
Gross unrealized, Loss	84	143
Available-for-sale	26,437	27,043
Held-to-maturity:
Amortized cost	32,869	27,357
Gross unrealized, Gains	1,108	292
Gross unrealized, Losses	9	46
Securities held-to-maturity	33,968	27,603
U.S. Treasury
Available-for-sale:
Amortized cost	23,537	14,979
Gross unrealized, Gain	1,600	472
Gross unrealized, Loss	0	20
Available-for-sale	25,137	15,431
Held-to-maturity:
Amortized cost	4,687	3,818
Gross unrealized, Gains	114	28
Gross unrealized, Losses	1	3
Securities held-to-maturity	4,800	3,843
Sovereign debt/sovereign guaranteed
Available-for-sale:
Amortized cost	15,724	12,548
Gross unrealized, Gain	165	109
Gross unrealized, Loss	2	11
Available-for-sale	15,887	12,646
Held-to-maturity:
Amortized cost	974	756
Gross unrealized, Gains	41	31
Gross unrealized, Losses	0	0
Securities held-to-maturity	1,015	787
Agency commercial mortgage-backed securities (“MBS”)
Available-for-sale:
Amortized cost	9,357	9,231
Gross unrealized, Gain	633	203
Gross unrealized, Loss	2	17
Available-for-sale	9,988	9,417
Held-to-maturity:
Amortized cost	1,982	1,326
Gross unrealized, Gains	108	21
Gross unrealized, Losses	0	3
Securities held-to-maturity	2,090	1,344
Foreign covered bonds
Available-for-sale:
Amortized cost	5,469	4,189
Gross unrealized, Gain	53	15
Gross unrealized, Loss	3	7
Available-for-sale	5,519	4,197
Held-to-maturity:
Amortized cost	79	79
Gross unrealized, Gains	0	0
Gross unrealized, Losses	0	0
Securities held-to-maturity	79	79
Supranational
Available-for-sale:
Amortized cost	5,385	3,697
Gross unrealized, Gain	64	18
Gross unrealized, Loss	1	6
Available-for-sale	5,448	3,709
Held-to-maturity:
Amortized cost	49	27
Gross unrealized, Gains	0	0
Gross unrealized, Losses	0	0
Securities held-to-maturity	49	27
Collateralized loan obligations (“CLOs”)
Available-for-sale:
Amortized cost	4,526	4,078
Gross unrealized, Gain	4	1
Gross unrealized, Loss	98	16
Available-for-sale	4,432	4,063
Foreign government agencies
Available-for-sale:
Amortized cost	3,536	2,638
Gross unrealized, Gain	42	7
Gross unrealized, Loss	0	2
Available-for-sale	3,578	2,643
U.S. government agencies
Available-for-sale:
Amortized cost	2,635	1,890
Gross unrealized, Gain	173	61
Gross unrealized, Loss	2	2
Available-for-sale	2,806	1,949
Held-to-maturity:
Amortized cost	2,349	1,023
Gross unrealized, Gains	6	1
Gross unrealized, Losses	3	2
Securities held-to-maturity	2,352	1,022
Other ABS
Available-for-sale:
Amortized cost	2,724	2,141
Gross unrealized, Gain	29	7
Gross unrealized, Loss	10	5
Available-for-sale	2,743	2,143
Non-agency commercial MBS
Available-for-sale:
Amortized cost	2,517	2,134
Gross unrealized, Gain	129	46
Gross unrealized, Loss	16	2
Available-for-sale	2,630	2,178
Commercial paper/certificates of deposit (“CDs”)
Available-for-sale:
Amortized cost	1,849
Gross unrealized, Gain	4
Gross unrealized, Loss	0
Available-for-sale	1,853
Held-to-maturity:
Amortized cost	1,537
Gross unrealized, Gains	2
Gross unrealized, Losses	0
Securities held-to-maturity	1,539
Non-agency RMBS
Available-for-sale:
Amortized cost	1,464	1,038
Gross unrealized, Gain	149	202
Gross unrealized, Loss	15	7
Available-for-sale	1,598	1,233
Held-to-maturity:
Amortized cost	73	80
Gross unrealized, Gains	3	4
Gross unrealized, Losses	2	1
Securities held-to-maturity	74	83
Non-agency RMBS | Grantor Trust
Available-for-sale:
Available-for-sale	538	640
State and political subdivisions
Available-for-sale:
Amortized cost	1,150	1,017
Gross unrealized, Gain	31	27
Gross unrealized, Loss	2	0
Available-for-sale	1,179	1,044
Held-to-maturity:
Amortized cost	16	17
Gross unrealized, Gains	1	0
Gross unrealized, Losses	0	0
Securities held-to-maturity	17	17
Corporate bonds
Available-for-sale:
Amortized cost	789	832
Gross unrealized, Gain	42	21
Gross unrealized, Loss	0	0
Available-for-sale	831	853
Other debt securities
Available-for-sale:
Amortized cost	1	1
Gross unrealized, Gain	0	0
Gross unrealized, Loss	0	0
Available-for-sale	$ 1	$ 1

Securities - Net Securities Gai

Securities - Net Securities Gains (Losses) (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Securities [Abstract]
Realized gross gains	$ 16	$ 12	$ 12	$ 28	$ 17
Realized gross losses	(7)	(3)	(5)	(10)	(9)
Recognized gross impairments	0	0	0	0	0
Total net securities gains	$ 9	$ 9	$ 7	$ 18	$ 8

Securities - Pre-Tax Net Securi

Securities - Pre-Tax Net Securities Gains (Losses) by Type (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Total net securities gains (losses)	$ 9	$ 9	$ 7	$ 18	$ 8
Supranational
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Total net securities gains (losses)	6	0	0	6	0
U.S. Treasury
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Total net securities gains (losses)	1	5	3	6	4
Other
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Total net securities gains (losses)	$ 2	$ 4	$ 4	$ 6	$ 4

Securities - Narrative (Details

Securities - Narrative (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018	Jan. 01, 2020
Debt Securities, Available-for-sale [Line Items]
Accounting Standards Update [Extensible List]			us-gaap:AccountingStandardsUpdate201613Member	us-gaap:AccountingStandardsUpdate201602Member	us-gaap:AccountingStandardsUpdate201613Member	us-gaap:AccountingStandardsUpdate201802Member
Debt securities, available-for-sale, allowance for credit loss	$ 12		$ 12
AOCI, transfers from AFS to HTM Securities, gross unrealized losses	$ 55	$ 65
Cumulative Effect, Period Of Adoption, Adjustment
Debt Securities, Available-for-sale [Line Items]
Debt securities, available-for-sale, allowance for credit loss							$ 7

Securities - Fair Value of Inve

Securities - Fair Value of Investments with Continuous Unrealized Loss Position (Details) - USD ($)	Jun. 30, 2020	Dec. 31, 2019
Available-for-sale:
Less than 12 months, Fair value	$ 12,385,000,000	$ 23,012,000,000
Less than 12 months, Unrealized losses	110,000,000	92,000,000
12 months or more, Fair value	7,919,000,000	10,774,000,000
12 months or more, Unrealized losses	113,000,000	146,000,000
Total, Fair value	20,304,000,000	33,786,000,000
Total, Unrealized losses	223,000,000	238,000,000
AOCI, transfers from AFS to HTM Securities, gross unrealized losses, greater than 12 months	55,000,000	65,000,000
AOCI, transfers from AFS to HTM Securities, gross unrealized losses, less than 12 months	0	0
Grantor Trust
Available-for-sale:
Less than 12 months, Fair value	530,000,000
Agency RMBS
Available-for-sale:
Less than 12 months, Fair value	2,809,000,000	8,373,000,000
Less than 12 months, Unrealized losses	5,000,000	33,000,000
12 months or more, Fair value	6,030,000,000	5,912,000,000
12 months or more, Unrealized losses	79,000,000	110,000,000
Total, Fair value	8,839,000,000	14,285,000,000
Total, Unrealized losses	84,000,000	143,000,000
U.S. Treasury
Available-for-sale:
Less than 12 months, Fair value		1,976,000,000
Less than 12 months, Unrealized losses		16,000,000
12 months or more, Fair value		766,000,000
12 months or more, Unrealized losses		4,000,000
Total, Fair value		2,742,000,000
Total, Unrealized losses		20,000,000
Sovereign debt/sovereign guaranteed
Available-for-sale:
Less than 12 months, Fair value	1,952,000,000	4,045,000,000
Less than 12 months, Unrealized losses	2,000,000	10,000,000
12 months or more, Fair value	110,000,000	225,000,000
12 months or more, Unrealized losses	0	1,000,000
Total, Fair value	2,062,000,000	4,270,000,000
Total, Unrealized losses	2,000,000	11,000,000
Agency commercial mortgage-backed securities (“MBS”)
Available-for-sale:
Less than 12 months, Fair value	266,000,000	1,960,000,000
Less than 12 months, Unrealized losses	0	12,000,000
12 months or more, Fair value	350,000,000	775,000,000
12 months or more, Unrealized losses	2,000,000	5,000,000
Total, Fair value	616,000,000	2,735,000,000
Total, Unrealized losses	2,000,000	17,000,000
Foreign covered bonds
Available-for-sale:
Less than 12 months, Fair value	1,003,000,000	1,009,000,000
Less than 12 months, Unrealized losses	2,000,000	4,000,000
12 months or more, Fair value	281,000,000	690,000,000
12 months or more, Unrealized losses	1,000,000	3,000,000
Total, Fair value	1,284,000,000	1,699,000,000
Total, Unrealized losses	3,000,000	7,000,000
Supranational
Available-for-sale:
Less than 12 months, Fair value	931,000,000	1,336,000,000
Less than 12 months, Unrealized losses	1,000,000	6,000,000
12 months or more, Fair value	233,000,000	360,000,000
12 months or more, Unrealized losses	0	0
Total, Fair value	1,164,000,000	1,696,000,000
Total, Unrealized losses	1,000,000	6,000,000
Collateralized loan obligations (“CLOs”)
Available-for-sale:
Less than 12 months, Fair value	3,522,000,000	1,066,000,000
Less than 12 months, Unrealized losses	68,000,000	2,000,000
12 months or more, Fair value	575,000,000	1,499,000,000
12 months or more, Unrealized losses	19,000,000	14,000,000
Total, Fair value	4,097,000,000	2,565,000,000
Total, Unrealized losses	87,000,000	16,000,000
Foreign government agencies
Available-for-sale:
Less than 12 months, Fair value		1,706,000,000
Less than 12 months, Unrealized losses		2,000,000
12 months or more, Fair value		47,000,000
12 months or more, Unrealized losses		0
Total, Fair value		1,753,000,000
Total, Unrealized losses		2,000,000
U.S. government agencies
Available-for-sale:
Less than 12 months, Fair value	79,000,000	377,000,000
Less than 12 months, Unrealized losses	2,000,000	2,000,000
12 months or more, Fair value	0	0
12 months or more, Unrealized losses	0	0
Total, Fair value	79,000,000	377,000,000
Total, Unrealized losses	2,000,000	2,000,000
Other ABS
Available-for-sale:
Less than 12 months, Fair value	760,000,000	456,000,000
Less than 12 months, Unrealized losses	6,000,000	3,000,000
12 months or more, Fair value	203,000,000	305,000,000
12 months or more, Unrealized losses	4,000,000	2,000,000
Total, Fair value	963,000,000	761,000,000
Total, Unrealized losses	10,000,000	5,000,000
Non-agency commercial MBS
Available-for-sale:
Less than 12 months, Fair value	476,000,000	525,000,000
Less than 12 months, Unrealized losses	15,000,000	2,000,000
12 months or more, Fair value	39,000,000	45,000,000
12 months or more, Unrealized losses	1,000,000	0
Total, Fair value	515,000,000	570,000,000
Total, Unrealized losses	16,000,000	2,000,000
Non-agency RMBS
Available-for-sale:
Less than 12 months, Fair value	508,000,000	101,000,000
Less than 12 months, Unrealized losses	7,000,000	0
12 months or more, Fair value	96,000,000	113,000,000
12 months or more, Unrealized losses	7,000,000	7,000,000
Total, Fair value	604,000,000	214,000,000
Total, Unrealized losses	14,000,000	7,000,000
Non-agency RMBS | Grantor Trust
Available-for-sale:
Less than 12 months, Fair value	42,000,000	2,000,000
Less than 12 months, Unrealized losses	1,000,000	1,000,000
12 months or more, Fair value	1,000,000	2,000,000
12 months or more, Unrealized losses	1,000,000	1,000,000
State and political subdivisions
Available-for-sale:
Less than 12 months, Fair value	79,000,000	0
Less than 12 months, Unrealized losses	2,000,000	0
12 months or more, Fair value	2,000,000	16,000,000
12 months or more, Unrealized losses	0	0
Total, Fair value	81,000,000	16,000,000
Total, Unrealized losses	$ 2,000,000	0
Corporate bonds
Available-for-sale:
Less than 12 months, Fair value		82,000,000
Less than 12 months, Unrealized losses		0
12 months or more, Fair value		21,000,000
12 months or more, Unrealized losses		0
Total, Fair value		103,000,000
Total, Unrealized losses		$ 0

Securities - Debt Securities, H

Securities - Debt Securities, Held-to-maturity, Credit Quality Indicator (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized cost	$ 44,615	$ 34,483
Unrealized gain (loss)	$ 1,368
Ratings (percent)	0.00%
Agency RMBS
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized cost	$ 32,869	27,357
Unrealized gain (loss)	$ 1,099
Ratings (percent)	0.00%
U.S. Treasury
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized cost	$ 4,687	3,818
Unrealized gain (loss)	$ 113
Ratings (percent)	0.00%
U.S. government agencies
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized cost	$ 2,349	1,023
Unrealized gain (loss)	$ 3
Ratings (percent)	0.00%
Agency commercial mortgage-backed securities (“MBS”)
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized cost	$ 1,982	1,326
Unrealized gain (loss)	$ 108
Ratings (percent)	0.00%
Commercial paper/certificates of deposit (“CDs”)
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized cost	$ 1,537
Unrealized gain (loss)	$ 2
Ratings (percent)	0.00%
Sovereign debt/sovereign guaranteed
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized cost	$ 974	756
Unrealized gain (loss)	$ 41
Ratings (percent)	0.00%
Foreign covered bonds
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized cost	$ 79	79
Unrealized gain (loss)	$ 0
Ratings (percent)	0.00%
Non-agency RMBS
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized cost	$ 73	80
Unrealized gain (loss)	$ 1
Ratings (percent)	1.00%
Supranational
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized cost	$ 49	27
Unrealized gain (loss)	$ 0
Ratings (percent)	0.00%
State and political subdivisions
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Amortized cost	$ 16	$ 17
Unrealized gain (loss)	$ 1
Ratings (percent)	86.00%
AAA/ AA-
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	96.00%
AAA/ AA- | Agency RMBS
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	100.00%
AAA/ AA- | U.S. Treasury
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	100.00%
AAA/ AA- | U.S. government agencies
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	100.00%
AAA/ AA- | Agency commercial mortgage-backed securities (“MBS”)
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	100.00%
AAA/ AA- | Commercial paper/certificates of deposit (“CDs”)
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
AAA/ AA- | Sovereign debt/sovereign guaranteed
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	100.00%
AAA/ AA- | Foreign covered bonds
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	100.00%
AAA/ AA- | Non-agency RMBS
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	42.00%
AAA/ AA- | Supranational
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	100.00%
AAA/ AA- | State and political subdivisions
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	6.00%
A/ A-
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	1.00%
A/ A- | Agency RMBS
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
A/ A- | U.S. Treasury
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
A/ A- | U.S. government agencies
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
A/ A- | Agency commercial mortgage-backed securities (“MBS”)
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
A/ A- | Commercial paper/certificates of deposit (“CDs”)
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
A/ A- | Sovereign debt/sovereign guaranteed
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
A/ A- | Foreign covered bonds
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
A/ A- | Non-agency RMBS
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	43.00%
A/ A- | Supranational
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
A/ A- | State and political subdivisions
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	2.00%
BBB/ BBB-
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
BBB/ BBB- | Agency RMBS
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
BBB/ BBB- | U.S. Treasury
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
BBB/ BBB- | U.S. government agencies
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
BBB/ BBB- | Agency commercial mortgage-backed securities (“MBS”)
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
BBB/ BBB- | Commercial paper/certificates of deposit (“CDs”)
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
BBB/ BBB- | Sovereign debt/sovereign guaranteed
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
BBB/ BBB- | Foreign covered bonds
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
BBB/ BBB- | Non-agency RMBS
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	2.00%
BBB/ BBB- | Supranational
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
BBB/ BBB- | State and political subdivisions
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	6.00%
BB and lower
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
BB and lower | Agency RMBS
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
BB and lower | U.S. Treasury
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
BB and lower | U.S. government agencies
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
BB and lower | Agency commercial mortgage-backed securities (“MBS”)
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
BB and lower | Commercial paper/certificates of deposit (“CDs”)
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
BB and lower | Sovereign debt/sovereign guaranteed
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
BB and lower | Foreign covered bonds
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
BB and lower | Non-agency RMBS
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	12.00%
BB and lower | Supranational
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
BB and lower | State and political subdivisions
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
A1/A2/SP-1
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	3.00%
A1/A2/SP-1 | Agency RMBS
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
A1/A2/SP-1 | U.S. Treasury
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
A1/A2/SP-1 | U.S. government agencies
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
A1/A2/SP-1 | Agency commercial mortgage-backed securities (“MBS”)
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
A1/A2/SP-1 | Commercial paper/certificates of deposit (“CDs”)
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	100.00%
A1/A2/SP-1 | Sovereign debt/sovereign guaranteed
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
A1/A2/SP-1 | Foreign covered bonds
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
A1/A2/SP-1 | Non-agency RMBS
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
A1/A2/SP-1 | Supranational
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%
A1/A2/SP-1 | State and political subdivisions
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]
Ratings (percent)	0.00%

Securities - Maturity Distribut

Securities - Maturity Distribution and Yield of Investment Securities Portfolio (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Securities available-for-sale, Amount:
One year or less	$ 19,377
Over 1 through 5 years	28,132
Over 5 through 10 years	10,739
Over 10 years	3,991
Total	110,067	$ 88,550
Securities held-to-maturity, Amount:
One year or less	3,545
Over 1 through 5 years	5,406
Over 5 through 10 years	243
Over 10 years	497
Amortized cost	44,615	34,483
Mortgage-backed securities
Securities available-for-sale, Amount:
Without single maturity date	40,653
Securities held-to-maturity, Amount:
Mortgage-backed securities	34,924
Asset-backed securities
Securities available-for-sale, Amount:
Without single maturity date	7,175
U.S. Treasury
Securities available-for-sale, Amount:
One year or less	5,348
Over 1 through 5 years	10,350
Over 5 through 10 years	6,171
Over 10 years	3,268
Total	$ 25,137	15,431
Securities available-for-sale (Yield):
One year or less	0.50%
Over 1 through 5 years	1.52%
Over 5 through 10 years	1.67%
Over 10 years	3.11%
Total	1.54%
Securities held-to-maturity, Amount:
One year or less	$ 1,899
Over 1 through 5 years	2,788
Over 5 through 10 years	0
Over 10 years	0
Amortized cost	$ 4,687	3,818
Securities held-to-maturity (Yield):
One year or less	0.41%
Over 1 through 5 years	1.91%
Over 5 through 10 years	0.00%
Over 10 years	0.00%
Total	1.32%
U.S. government agencies
Securities available-for-sale, Amount:
One year or less	$ 25
Over 1 through 5 years	1,038
Over 5 through 10 years	1,623
Over 10 years	120
Total	$ 2,806	1,949
Securities available-for-sale (Yield):
One year or less	2.55%
Over 1 through 5 years	1.22%
Over 5 through 10 years	2.56%
Over 10 years	2.06%
Total	2.04%
Securities held-to-maturity, Amount:
One year or less	$ 0
Over 1 through 5 years	1,696
Over 5 through 10 years	212
Over 10 years	441
Amortized cost	$ 2,349	1,023
Securities held-to-maturity (Yield):
One year or less	0.00%
Over 1 through 5 years	1.12%
Over 5 through 10 years	1.98%
Over 10 years	2.33%
Total	1.42%
State and political subdivisions
Securities available-for-sale, Amount:
One year or less	$ 178
Over 1 through 5 years	646
Over 5 through 10 years	107
Over 10 years	248
Total	$ 1,179	1,044
Securities available-for-sale (Yield):
One year or less	2.92%
Over 1 through 5 years	3.29%
Over 5 through 10 years	2.42%
Over 10 years	2.37%
Total	2.96%
Securities held-to-maturity, Amount:
One year or less	$ 0
Over 1 through 5 years	3
Over 5 through 10 years	0
Over 10 years	13
Amortized cost	$ 16	$ 17
Securities held-to-maturity (Yield):
One year or less	0.00%
Over 1 through 5 years	5.66%
Over 5 through 10 years	0.00%
Over 10 years	4.76%
Total	4.91%
Other bonds, notes and debentures
Securities available-for-sale, Amount:
One year or less	$ 13,826
Over 1 through 5 years	16,098
Over 5 through 10 years	2,838
Over 10 years	355
Total	$ 33,117
Securities available-for-sale (Yield):
One year or less	0.71%
Over 1 through 5 years	0.68%
Over 5 through 10 years	0.53%
Over 10 years	0.97%
Total	0.69%
Securities held-to-maturity, Amount:
One year or less	$ 1,646
Over 1 through 5 years	919
Over 5 through 10 years	31
Over 10 years	43
Amortized cost	$ 2,639
Securities held-to-maturity (Yield):
One year or less	1.21%
Over 1 through 5 years	0.66%
Over 5 through 10 years	0.92%
Over 10 years	0.35%
Total	1.00%
Mortgage/ asset-backed
Securities available-for-sale, Amount:
Total	$ 47,828
Securities available-for-sale (Yield):
Total	2.23%
Securities held-to-maturity, Amount:
Amortized cost	$ 34,924
Securities held-to-maturity (Yield):
Total	2.87%
Mortgage/ asset-backed | Mortgage-backed securities
Securities available-for-sale, Amount:
Without single maturity date	$ 40,653
Securities available-for-sale (Yield):
Without single maturity date	2.24%
Securities held-to-maturity, Amount:
Mortgage-backed securities	$ 34,924
Securities held-to-maturity (Yield):
Without single maturity date	2.87%
Mortgage/ asset-backed | Asset-backed securities
Securities available-for-sale, Amount:
Without single maturity date	$ 7,175
Securities available-for-sale (Yield):
Without single maturity date	2.18%

Securities - Pledged assets (De

Securities - Pledged assets (Details) - USD ($) $ in Billions	Jun. 30, 2020	Dec. 31, 2019
Securities [Abstract]
Pledged assets	$ 139	$ 118
Pledged collateral for potential borrowings at the Federal Reserve Discount Window	109	80
Pledged asset, other not separately reported, potential borrowings at FHLB	6	6
Pledged securities	121	98
Pledged loans	12	13
Pledged trading assets	5	7
Pledged interest-bearing deposits	1	1
Financial instruments owned and pledged as collateral, amount eligible to be pledged by counterparty	21	29
Pledged collateral for potential borrowings at the Federal Reserve	1.5
Pledged assets permitted to be sold or repledged	107	153
Market value of securities received as collateral that have been sold or repledged	72	107
Cash segregated under federal or other regulations	2	2
Securities segregated under federal or other regulations	$ 6	$ 1

Loans and asset quality - Loan

Loans and asset quality - Loan Distribution and Industry Concentrations (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 55,397	$ 54,953
Unearned income on lease financings	292	313
Other residential mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	450	494
Overdrafts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		2,700
Margin loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	12,900	13,400
Domestic
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	42,893	42,548
Domestic | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	2,192	1,442
Domestic | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	6,217	5,575
Domestic | Financial institutions
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	3,804	4,852
Domestic | Lease financings
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	439	537
Domestic | Wealth management loans and mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	15,753	16,050
Domestic | Other residential mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	450	494
Domestic | Overdrafts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	1,073	524
Domestic | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	1,489	1,167
Domestic | Margin loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	11,476	11,907
Foreign
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	12,504	12,405
Foreign | Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	253	347
Foreign | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	11	7
Foreign | Financial institutions
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	6,949	7,626
Foreign | Lease financings
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	589	576
Foreign | Wealth management loans and mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	122	140
Foreign | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	3,147	2,230
Foreign | Margin loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 1,433	$ 1,479

Loans and asset quality - Loans

Loans and asset quality - Loans Additional Information (Details)	6 Months Ended
	Jun. 30, 2020class_of_receivablesegment
Receivables [Abstract]
Number of portfolio segments (segment) | segment	3
Number of classes of financing receivables (class of receivable) | class_of_receivable	6

Loans and asset quality - Allow

Loans and asset quality - Allowance for Credit Losses Activity (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Allowance for Credit Loss [Line Items]
Accounting Standards Update [Extensible List]				us-gaap:AccountingStandardsUpdate201613Member	us-gaap:AccountingStandardsUpdate201602Member	us-gaap:AccountingStandardsUpdate201613Member	us-gaap:AccountingStandardsUpdate201802Member
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 288	$ 216	$ 248	$ 216	$ 252	$ 252
Charge-offs	0	0	(1)	0	(12)
Recoveries	3	0	2	3	2
Net (charge-offs) recoveries	3	0	1	3	(10)
Provision	163	141	(8)	304	(1)
Ending balance	454	288	241	454	241	216	$ 252
Individually evaluated for impairment:
Loan balance	18	18	112	18	112
Allowance for loan losses	0	0	10	0	10
Collectively evaluated for impairment:
Loan balance			52,284		52,284
Allowance for loan losses			136		136
Collateral dependent loans	18	18		18
Fair value of collateral	26	26		26
Loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	140
Ending balance	302	140	146	302	146
Lending-related commitments
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	148
Ending balance	152	148	95	152	95
Domestic | Overdrafts
Collectively evaluated for impairment:
Loans			1,575		1,575
Domestic | Margin loans
Collectively evaluated for impairment:
Loans			10,152		10,152
Domestic | Other
Collectively evaluated for impairment:
Loans			1,122		1,122
Foreign
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	0	24	29	24	32	32
Charge-offs		0	0	0	0
Recoveries		0	0	0	0
Net (charge-offs) recoveries		0	0	0	0
Provision		0	4	0	1
Ending balance	0	0	33	0	33	24	32
Individually evaluated for impairment:
Loan balance		0	0		0
Allowance for loan losses		0	0		0
Collectively evaluated for impairment:
Loan balance			11,539		11,539
Allowance for loan losses			23		23
Foreign | Loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	0
Ending balance		0	23		23
Foreign | Lending-related commitments
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	0
Ending balance		0	10		10
Commercial | Domestic
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	26	60	82	60	81	81
Charge-offs	0	0	0	0	(11)
Recoveries	0	0	0	0	0
Net (charge-offs) recoveries	0	0	0	0	(11)
Provision	14	9	(5)	23	7
Ending balance	40	26	77	40	77	60	81
Individually evaluated for impairment:
Loan balance	0	0	96	0	96
Allowance for loan losses	0	0	10	0	10
Collectively evaluated for impairment:
Loan balance			1,356		1,356
Allowance for loan losses			13		13
Commercial | Domestic | Loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	13
Ending balance	23	13	23	23	23
Commercial | Domestic | Lending-related commitments
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	13
Ending balance	17	13	54	17	54
Commercial | Foreign
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	10
Ending balance		10
Commercial real estate | Domestic
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	208	76	74	76	75	75
Charge-offs	0	0	0	0	0
Recoveries	0	0	0	0	0
Net (charge-offs) recoveries	0	0	0	0	0
Provision	164	118	(2)	282	(3)
Ending balance	372	208	72	372	72	76	75
Individually evaluated for impairment:
Loan balance	0	0	0	0	0
Allowance for loan losses	0	0	0	0	0
Collectively evaluated for impairment:
Loan balance			5,192		5,192
Allowance for loan losses			57		57
Commercial real estate | Domestic | Loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	83
Ending balance	244	83	57	244	57
Commercial real estate | Domestic | Lending-related commitments
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	125
Ending balance	128	125	15	128	15
Financial institutions | Domestic
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	18	20	23	20	22	22
Charge-offs	0	0	0	0	0
Recoveries	0	0	0	0	0
Net (charge-offs) recoveries	0	0	0	0	0
Provision	(2)	4	(2)	2	(1)
Ending balance	16	18	21	16	21	20	22
Individually evaluated for impairment:
Loan balance	0	0	0	0	0
Allowance for loan losses	0	0	0	0	0
Collectively evaluated for impairment:
Loan balance			4,574		4,574
Allowance for loan losses			8		8
Financial institutions | Domestic | Loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	10
Ending balance	11	10	8	11	8
Financial institutions | Domestic | Lending-related commitments
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	8
Ending balance	5	8	13	5	13
Financial institutions | Foreign
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	10
Ending balance	11	10		11
Lease financings | Domestic
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	13	3	4	3	5	5
Charge-offs	0	0	0	0	0
Recoveries	0	0	0	0	0
Net (charge-offs) recoveries	0	0	0	0	0
Provision	(10)	10	0	0	(1)
Ending balance	3	13	4	3	4	3	5
Individually evaluated for impairment:
Loan balance	0	0	0	0	0
Allowance for loan losses	0	0	0	0	0
Collectively evaluated for impairment:
Loan balance			662		662
Allowance for loan losses			4		4
Lease financings | Domestic | Loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	13
Ending balance	3	13	4	3	4
Lease financings | Domestic | Lending-related commitments
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	0
Ending balance	0	0	0	0	0
Lease financings | Foreign
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	4
Ending balance		4
Wealth management loans and mortgages | Domestic
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	9	20	21	20	21	21
Charge-offs	0	0	(1)	0	(1)
Recoveries	0	0	0	0	0
Net (charge-offs) recoveries	0	0	(1)	0	(1)
Provision	2	1	0	3	0
Ending balance	11	9	20	11	20	20	21
Individually evaluated for impairment:
Loan balance	18	18	16	18	16
Allowance for loan losses	0	0	0	0	0
Collectively evaluated for impairment:
Loan balance			15,563		15,563
Allowance for loan losses			17		17
Wealth management loans and mortgages | Domestic | Loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	7
Ending balance	9	7	17	9	17
Wealth management loans and mortgages | Domestic | Lending-related commitments
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	2
Ending balance	2	2	3	2	3
Other residential mortgages | Domestic
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	14	13	15	13	16	16
Charge-offs	0	0	0	0	0
Recoveries	3	0	2	3	2
Net (charge-offs) recoveries	3	0	2	3	2
Provision	(5)	(1)	(3)	(6)	(4)
Ending balance	12	14	14	12	14	13	16
Individually evaluated for impairment:
Loan balance	0	0	0	0	0
Allowance for loan losses	0	0	0	0	0
Collectively evaluated for impairment:
Loan balance			549		549
Allowance for loan losses			14		14
Other residential mortgages | Domestic | Loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	14
Ending balance	12	14	14	12	14
Other residential mortgages | Domestic | Lending-related commitments
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	0
Ending balance	0	0	0	0	0
All other | Domestic
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance			0		0	0
Charge-offs			0		0
Recoveries			0		0
Net (charge-offs) recoveries			0		0
Provision			0		0
Ending balance			0		0		$ 0
Individually evaluated for impairment:
Loan balance			0		0
Allowance for loan losses			0		0
Collectively evaluated for impairment:
Loan balance			12,849		12,849
Allowance for loan losses			0		0
All other | Domestic | Loans
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Ending balance			0		0
All other | Domestic | Lending-related commitments
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Ending balance			$ 0		$ 0
Financial Institutions and Other | Foreign
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 12
Ending balance		12
Cumulative Effect, Period Of Adoption, Adjustment
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		(69)		(69)
Ending balance						(69)
Cumulative Effect, Period Of Adoption, Adjustment | Foreign
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		(24)		(24)
Ending balance						(24)
Cumulative Effect, Period Of Adoption, Adjustment | Commercial | Domestic
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		(43)		(43)
Ending balance						(43)
Cumulative Effect, Period Of Adoption, Adjustment | Commercial real estate | Domestic
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		14		14
Ending balance						14
Cumulative Effect, Period Of Adoption, Adjustment | Financial institutions | Domestic
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		(6)		(6)
Ending balance						(6)
Cumulative Effect, Period Of Adoption, Adjustment | Lease financings | Domestic
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		0		0
Ending balance						0
Cumulative Effect, Period Of Adoption, Adjustment | Wealth management loans and mortgages | Domestic
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		(12)		(12)
Ending balance						(12)
Cumulative Effect, Period Of Adoption, Adjustment | Other residential mortgages | Domestic
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		2		2
Ending balance						2
Cumulative Effect, Period of Adoption, Adjusted Balance
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		147		147
Ending balance						147
Cumulative Effect, Period of Adoption, Adjusted Balance | Foreign
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		0		0
Ending balance						0
Cumulative Effect, Period of Adoption, Adjusted Balance | Commercial | Domestic
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		17		17
Ending balance						17
Cumulative Effect, Period of Adoption, Adjusted Balance | Commercial real estate | Domestic
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		90		90
Ending balance						90
Cumulative Effect, Period of Adoption, Adjusted Balance | Financial institutions | Domestic
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		14		14
Ending balance						14
Cumulative Effect, Period of Adoption, Adjusted Balance | Lease financings | Domestic
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		3		3
Ending balance						3
Cumulative Effect, Period of Adoption, Adjusted Balance | Wealth management loans and mortgages | Domestic
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		8		8
Ending balance						8
Cumulative Effect, Period of Adoption, Adjusted Balance | Other residential mortgages | Domestic
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance		$ 15		$ 15
Ending balance						$ 15

Loans and asset quality - Nonpe

Loans and asset quality - Nonperforming Assets (Details) - Domestic - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Financing Receivable, Impaired [Line Items]
With an allowance	$ 68
Without an allowance	18
Total nonperforming loans	86	$ 86
With an allowance, Other assets owned	0
Without an allowance, Other assets owned	2
Other assets owned	2	3
With an allowance, Total nonperforming assets	68
Without an allowance, Total nonperforming assets	20
Total nonperforming assets	88	89
Other residential mortgages
Financing Receivable, Impaired [Line Items]
With an allowance	58
Without an allowance	0
Total nonperforming loans	58	62
Wealth management loans and mortgages
Financing Receivable, Impaired [Line Items]
With an allowance	10
Without an allowance	18
Total nonperforming loans	$ 28	$ 24

Loans and asset quality - Past

Loans and asset quality - Past Due Loans (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Financing Receivable, Past Due [Line Items]
Total past due loans	$ 43	$ 87
30 to 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total past due loans	36	37
60 to 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total past due loans	7	50
Equal to Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total past due loans	0	0
Domestic | Wealth management loans and mortgages
Financing Receivable, Past Due [Line Items]
Total past due loans	37	27
Domestic | Wealth management loans and mortgages | 30 to 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total past due loans	31	22
Domestic | Wealth management loans and mortgages | 60 to 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total past due loans	6	5
Domestic | Wealth management loans and mortgages | Equal to Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total past due loans	0	0
Domestic | Other residential mortgages
Financing Receivable, Past Due [Line Items]
Total past due loans	6	11
Domestic | Other residential mortgages | 30 to 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total past due loans	5	8
Domestic | Other residential mortgages | 60 to 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total past due loans	1	3
Domestic | Other residential mortgages | Equal to Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total past due loans	0	0
Domestic | Financial institutions
Financing Receivable, Past Due [Line Items]
Total past due loans	0	31
Domestic | Financial institutions | 30 to 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total past due loans	0	1
Domestic | Financial institutions | 60 to 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total past due loans	0	30
Domestic | Financial institutions | Equal to Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total past due loans	0	0
Domestic | Commercial real estate
Financing Receivable, Past Due [Line Items]
Total past due loans	0	18
Domestic | Commercial real estate | 30 to 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total past due loans	0	6
Domestic | Commercial real estate | 60 to 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total past due loans	0	12
Domestic | Commercial real estate | Equal to Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total past due loans	$ 0	$ 0

Loans and asset quality - Loa_2

Loans and asset quality - Loan Modifications (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding recorded investment post-modification (less than)	$ 282
Other residential mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding recorded investment post-modification (less than)		$ 1	$ 1

Loans and asset quality - Credi

Loans and asset quality - Credit Risk Profile by Origination (Details) $ in Millions	Jun. 30, 2020USD ($)
Financing Receivable, Credit Quality Indicator [Line Items]
YTD20	$ 3,926
2019	4,407
2018	2,267
2017	2,951
2016	2,747
Prior to 2016	5,263
Amortized cost	29,628
Converted to term loans - Amortized cost	29
Total	51,218
Accrued interest receivable	77
Wealth management mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
YTD20	491
2019	1,126
2018	719
2017	1,360
2016	1,736
Prior to 2016	2,976
Amortized cost	37
Converted to term loans - Amortized cost	0
Total	8,445
Wealth management loans and mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
YTD20	525
2019	1,207
2018	731
2017	1,531
2016	1,792
Prior to 2016	3,096
Amortized cost	6,993
Converted to term loans - Amortized cost	0
Total	15,875
Accrued interest receivable	27
Other residential mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
YTD20	0
2019	0
2018	0
2017	0
2016	0
Prior to 2016	450
Amortized cost	0
Converted to term loans - Amortized cost	0
Total	450
Accrued interest receivable	2
Other loans
Financing Receivable, Credit Quality Indicator [Line Items]
YTD20	0
2019	0
2018	0
2017	0
2016	0
Prior to 2016	0
Amortized cost	1,530
Converted to term loans - Amortized cost	0
Total	1,530
Accrued interest receivable	1
Margin loans
Financing Receivable, Credit Quality Indicator [Line Items]
YTD20	2,552
2019	1,000
2018	0
2017	0
2016	0
Prior to 2016	0
Amortized cost	9,357
Converted to term loans - Amortized cost	0
Total	12,909
Accrued interest receivable	11
Investment grade | Loans receivable
Financing Receivable, Credit Quality Indicator [Line Items]
YTD20	34
2019	81
2018	12
2017	171
2016	56
Prior to 2016	85
Amortized cost	6,877
Converted to term loans - Amortized cost	0
Total	7,316
Non-investment grade | Loans receivable
Financing Receivable, Credit Quality Indicator [Line Items]
YTD20	0
2019	0
2018	0
2017	0
2016	0
Prior to 2016	35
Amortized cost	79
Converted to term loans - Amortized cost	0
Total	114
Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
YTD20	147
2019	282
2018	118
2017	554
2016	60
Prior to 2016	0
Amortized cost	1,284
Converted to term loans - Amortized cost	0
Total	2,445
Accrued interest receivable	3
Commercial | Investment grade
Financing Receivable, Credit Quality Indicator [Line Items]
YTD20	107
2019	213
2018	106
2017	554
2016	57
Prior to 2016	0
Amortized cost	1,054
Converted to term loans - Amortized cost	0
Total	2,091
Commercial | Non-investment grade
Financing Receivable, Credit Quality Indicator [Line Items]
YTD20	40
2019	69
2018	12
2017	0
2016	3
Prior to 2016	0
Amortized cost	230
Converted to term loans - Amortized cost	0
Total	354
Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
YTD20	577
2019	1,622
2018	1,265
2017	729
2016	852
Prior to 2016	634
Amortized cost	520
Converted to term loans - Amortized cost	29
Total	6,228
Accrued interest receivable	8
Commercial real estate | Investment grade
Financing Receivable, Credit Quality Indicator [Line Items]
YTD20	500
2019	1,212
2018	806
2017	550
2016	431
Prior to 2016	422
Amortized cost	292
Converted to term loans - Amortized cost	0
Total	4,213
Commercial real estate | Non-investment grade
Financing Receivable, Credit Quality Indicator [Line Items]
YTD20	77
2019	410
2018	459
2017	179
2016	421
Prior to 2016	212
Amortized cost	228
Converted to term loans - Amortized cost	29
Total	2,015
Financial institutions
Financing Receivable, Credit Quality Indicator [Line Items]
YTD20	80
2019	276
2018	133
2017	125
2016	14
Prior to 2016	181
Amortized cost	9,944
Converted to term loans - Amortized cost	0
Total	10,753
Accrued interest receivable	25
Financial institutions | Investment grade
Financing Receivable, Credit Quality Indicator [Line Items]
YTD20	27
2019	247
2018	133
2017	125
2016	14
Prior to 2016	181
Amortized cost	7,934
Converted to term loans - Amortized cost	0
Total	8,661
Financial institutions | Non-investment grade
Financing Receivable, Credit Quality Indicator [Line Items]
YTD20	53
2019	29
2018	0
2017	0
2016	0
Prior to 2016	0
Amortized cost	2,010
Converted to term loans - Amortized cost	0
Total	2,092
Lease financings
Financing Receivable, Credit Quality Indicator [Line Items]
YTD20	45
2019	20
2018	20
2017	12
2016	29
Prior to 2016	902
Amortized cost	0
Converted to term loans - Amortized cost	0
Total	1,028
Accrued interest receivable	$ 0

Loans and asset quality - Cre_2

Loans and asset quality - Credit Risk Indicators Narrative (Details) - USD ($)	6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of exposure to investment grade securities	95.00%
Percentage of financial institution exposure secured	75.00%
Percent of financial institution exposure expiring within one year	90.00%
Loans	$ 55,397,000,000		$ 54,953,000,000
Wealth management loans and mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan to value ratio at origination (percent)	62.00%
Percentage of past due mortgages (less than)	1.00%
Wealth management loans and mortgages | California
Accounts, Notes, Loans and Financing Receivable [Line Items]
Geographic concentrations (percent)	23.00%
Wealth management loans and mortgages | New York
Accounts, Notes, Loans and Financing Receivable [Line Items]
Geographic concentrations (percent)	17.00%
Wealth management loans and mortgages | Massachusetts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Geographic concentrations (percent)	10.00%
Wealth management loans and mortgages | Florida
Accounts, Notes, Loans and Financing Receivable [Line Items]
Geographic concentrations (percent)	8.00%
Wealth management loans and mortgages | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Geographic concentrations (percent)	42.00%
Other residential mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 450,000,000		494,000,000
Overdrafts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans			2,700,000,000
Overdraft repayment period	2 days
Margin loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 12,900,000,000		13,400,000,000
Domestic
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	42,893,000,000		42,548,000,000
Domestic | Wealth management loans and mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	15,753,000,000		16,050,000,000
Domestic | Other residential mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	450,000,000		494,000,000
Purchased mortgages	81,000,000
Domestic | Overdrafts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	1,073,000,000		524,000,000
Domestic | Margin loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 11,476,000,000		$ 11,907,000,000
Domestic | Margin loans | Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Required daily collateral margin (in excess of)	100.00%
Equal to or greater than 60 days past due | Domestic | Other residential mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of past due mortgages (less than)	25.00%
Overdrafts | Overdrafts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 4,179,000,000
Operating segments
Accounts, Notes, Loans and Financing Receivable [Line Items]
Federal funds sold and securities purchased under resale agreements, allowance for credit losses	$ 0	$ 18,000,000

Goodwill and intangible asset_2

Goodwill and intangible assets - Goodwill (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Goodwill [Roll Forward]
Beginning balance	$ 17,386	$ 17,350
Foreign currency translation	(133)	(13)
Other	0
Ending balance	17,253	17,337
Investment Services
Goodwill [Roll Forward]
Beginning balance	8,332	8,333
Foreign currency translation	(24)	(6)
Other	47
Ending balance	8,355	8,327
Investment and Wealth Management
Goodwill [Roll Forward]
Beginning balance	9,007	8,970
Foreign currency translation	(109)	(7)
Other	0
Ending balance	8,898	8,963
Other
Goodwill [Roll Forward]
Beginning balance	47	47
Foreign currency translation	0	0
Other	(47)
Ending balance	$ 0	$ 47

Goodwill and intangible asset_3

Goodwill and intangible assets - Intangible Assets by Business Segment (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Intangible Assets [Roll Forward]
Beginning Balance		$ 3,107		$ 3,107	$ 3,220
Amortization	$ (26)	(26)	$ (30)	(52)	(59)
Foreign currency translation				(10)	(1)
Ending Balance	3,045		3,160	3,045	3,160
Investment Services
Intangible Assets [Roll Forward]
Beginning Balance		678		678	758
Amortization				(36)	(41)
Foreign currency translation				0	0
Ending Balance	642		717	642	717
Investment and Wealth Management
Intangible Assets [Roll Forward]
Beginning Balance		1,580		1,580	1,613
Amortization				(16)	(18)
Foreign currency translation				(10)	(1)
Ending Balance	1,554		1,594	1,554	1,594
Other
Intangible Assets [Roll Forward]
Beginning Balance		$ 849		849	849
Amortization				0	0
Foreign currency translation				0	0
Ending Balance	$ 849		$ 849	$ 849	$ 849

Goodwill and intangible asset_4

Goodwill and intangible assets - Intangible Assets by Type (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2018
Intangible Assets by Major Class [Line Items]
Gross carrying amount	$ 4,862	$ 4,881
Accumulated amortization	(1,817)	(1,774)
Net carrying amount	3,045	3,107	$ 3,160	$ 3,220
Finite-lived Intangible Assets
Intangible Assets by Major Class [Line Items]
Gross carrying amount	2,287	2,296
Accumulated amortization	(1,817)	(1,774)
Net carrying amount	$ 470	522
Finite-lived Intangible Assets | Weighted Average
Intangible Assets by Major Class [Line Items]
Remaining weighted- average amortization period	10 years
Finite-lived Intangible Assets | Customer contracts—Investment Services
Intangible Assets by Major Class [Line Items]
Gross carrying amount	$ 1,514	1,520
Accumulated amortization	(1,244)	(1,214)
Net carrying amount	$ 270	306
Finite-lived Intangible Assets | Customer contracts—Investment Services | Weighted Average
Intangible Assets by Major Class [Line Items]
Remaining weighted- average amortization period	10 years
Finite-lived Intangible Assets | Customer relationships
Intangible Assets by Major Class [Line Items]
Gross carrying amount	$ 709	712
Accumulated amortization	(554)	(544)
Net carrying amount	$ 155	168
Finite-lived Intangible Assets | Customer relationships | Weighted Average
Intangible Assets by Major Class [Line Items]
Remaining weighted- average amortization period	10 years
Finite-lived Intangible Assets | Other
Intangible Assets by Major Class [Line Items]
Gross carrying amount	$ 64	64
Accumulated amortization	(19)	(16)
Net carrying amount	$ 45	48
Finite-lived Intangible Assets | Other | Weighted Average
Intangible Assets by Major Class [Line Items]
Remaining weighted- average amortization period	14 years
Indefinite-lived Intangible Assets
Intangible Assets by Major Class [Line Items]
Gross carrying amount	$ 2,575	2,585
Net carrying amount	2,575	2,585
Indefinite-lived Intangible Assets | Tradenames
Intangible Assets by Major Class [Line Items]
Gross carrying amount	1,291	1,293
Net carrying amount	1,291	1,293
Indefinite-lived Intangible Assets | Customer relationships
Intangible Assets by Major Class [Line Items]
Gross carrying amount	1,284	1,292
Net carrying amount	$ 1,284	$ 1,292

Goodwill and intangible asset_5

Goodwill and intangible assets - Estimated Annual Amortization Expense (Details) $ in Millions	Jun. 30, 2020USD ($)
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2020	$ 104
2021	81
2022	63
2023	52
2024	$ 45

Goodwill and intangible asset_6

Goodwill and intangible assets - Narrative (Details)	3 Months Ended	6 Months Ended
	Jun. 30, 2020USD ($)	Jun. 30, 2020reporting_unit
Goodwill [Line Items]
Number of reporting units (reporting unit)		6
Goodwill impairment | $	$ 0
Investment Services
Goodwill [Line Items]
Number of reporting units (reporting unit)		4
Investment and Wealth Management
Goodwill [Line Items]
Number of reporting units (reporting unit)		2

Other assets - Components of Ot

Other assets - Components of Other Assets (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Other Assets [Abstract]
Corporate/bank-owned life insurance	$ 5,245	$ 5,219
Accounts receivable	3,404	3,802
Fails to deliver	3,201	1,671
Software	1,778	1,590
Prepaid pension assets	1,545	1,464
Equity in a joint venture and other investments	1,146	1,102
Renewable energy investments	1,083	1,144
Qualified affordable housing project investments	962	1,024
Prepaid expense	544	491
Federal Reserve Bank stock	477	466
Income taxes receivable	194	388
Seed capital	149	184
Fair value of hedging derivatives	137	21
Other	1,441	1,655
Total other assets	21,306	20,221
Federal Home Loan Bank stock, at cost	$ 7	$ 22

Other assets - Non-Readily Mark

Other assets - Non-Readily Marketable Equity Securities (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Other Assets [Abstract]
Equity securities without readily determinable fair value, amount	$ 106			$ 106		$ 61
Equity securities without readily determinable fair value, upward price adjustment, annual amount	2	$ 4	$ 2	6	$ 2
Equity securities without readily determinable fair value, downward price adjustment, annual amount	0	0	(1)	0	(1)
Equity securities without readily determinable fair value, net adjustment, annual amount	2	$ 4	$ 1	6	$ 1
Equity securities without readily determinable fair value, upward price adjustment, cumulative amount amount	38			38
Equity securities without readily determinable fair value, downward price adjustment, cumulative amount	(4)			(4)
Equity securities without readily determinable fair value, net price adjustment, cumulative amount	$ 34			$ 34

Other assets - Qualified Afford

Other assets - Qualified Affordable Housing Project Investments (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Other Assets [Abstract]
Qualified affordable housing project investments	$ 962			$ 962		$ 1,024
Qualified affordable housing project investments, commitment	363			363		$ 422
Qualified affordable housing project commitment - 2020	72			72
Qualified affordable housing project commitment - 2021	179			179
Qualified affordable housing project commitment - 2022	82			82
Qualified affordable housing project commitment - 2023	5			5
Qualified affordable housing project commitment - 2024	1			1
Qualified affordable housing project commitment - 2025 and thereafter	24			24
Tax credits and other tax benefits	38	$ 38	$ 39	76	$ 78
Amortization expense included in the provision for income taxes	$ 31	$ 31	$ 32	$ 62	$ 64

Other assets - Seed Capital and

Other assets - Seed Capital and Private Equity Investments (Details) - Other Assets - NAV - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Line Items]
Fair value	$ 187	$ 181
Unfunded commitments	70	55
Seed capital
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Line Items]
Fair value	56	59
Unfunded commitments	12	0
Private equitiy investments (SBICs)
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Line Items]
Fair value	91	89
Unfunded commitments	58	55
Other
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Line Items]
Fair value	40	33
Unfunded commitments	$ 0	$ 0
Minimum | Seed capital
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Line Items]
Redemption notice period	6 years	6 years
Maximum | Seed capital
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Line Items]
Redemption notice period	11 years
Maximum | Other
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Line Items]
Redemption notice period	95 days	95 days

Contract revenue - Disaggregati

Contract revenue - Disaggregation of Contract Revenues (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Total fee and other revenue	$ 3,176	$ 3,332	$ 3,112	$ 6,508	$ 6,144
Income from consolidated investment management funds, net of noncontrolling interests	950	980	1,017	1,930	1,963
Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	2,876	2,965	2,853	5,841	5,636
Fee and other revenue - not in scope of ASC 606	339	347	265	686	530
Total fee and other revenue	3,215	3,312	3,118	6,527	6,166
Asset servicing fees | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	1,157	1,139	1,109	2,296	2,202
Clearing services fees | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	431	470	410	901	808
Issuer services fees | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	277	263	291	540	542
Treasury services fees | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	145	149	141	294	273
Total investment services fees | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	2,010	2,021	1,951	4,031	3,825
Investment management and performance fees | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	791	863	833	1,654	1,674
Financing-related fees | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	24	28	17	52	34
Distribution and servicing | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	27	31	31	58	62
Investment and other income | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	24	22	21	46	41
Investment Services | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	2,081	2,102	2,013	4,183	3,951
Fee and other revenue - not in scope of ASC 606	258	334	220	592	443
Total fee and other revenue	2,339	2,436	2,233	4,775	4,394
Investment Services | Asset servicing fees | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	1,147	1,127	1,095	2,274	2,176
Investment Services | Clearing services fees | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	431	470	411	901	809
Investment Services | Issuer services fees | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	277	263	291	540	542
Investment Services | Treasury services fees | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	144	149	140	293	272
Investment Services | Total investment services fees | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	1,999	2,009	1,937	4,008	3,799
Investment Services | Investment management and performance fees | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	4	5	4	9	8
Investment Services | Financing-related fees | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	23	28	16	51	33
Investment Services | Distribution and servicing | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	(7)	(12)	(13)	(19)	(27)
Investment Services | Investment and other income | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	62	72	69	134	138
Investment and Wealth Management | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	811	878	850	1,689	1,707
Fee and other revenue - not in scope of ASC 606	27	(32)	4	(5)	16
Total fee and other revenue	838	846	854	1,684	1,723
Income from consolidated investment management funds, net of noncontrolling interests	39	(20)	6	19	22
Investment and Wealth Management | Asset servicing fees | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	25	23	20	48	40
Investment and Wealth Management | Clearing services fees | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	0	0	0	0	0
Investment and Wealth Management | Issuer services fees | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	0	0	0	0	0
Investment and Wealth Management | Treasury services fees | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	0	0	1	0	1
Investment and Wealth Management | Total investment services fees | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	25	23	21	48	41
Investment and Wealth Management | Investment management and performance fees | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	792	862	833	1,654	1,674
Investment and Wealth Management | Financing-related fees | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	1	0	0	1	0
Investment and Wealth Management | Distribution and servicing | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	34	43	44	77	89
Investment and Wealth Management | Investment and other income | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	(41)	(50)	(48)	(91)	(97)
Other | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	(16)	(15)	(10)	(31)	(22)
Fee and other revenue - not in scope of ASC 606	54	45	41	99	71
Total fee and other revenue	38	30	31	68	49
Other | Asset servicing fees | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	(15)	(11)	(6)	(26)	(14)
Other | Clearing services fees | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	0	0	(1)	0	(1)
Other | Issuer services fees | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	0	0	0	0	0
Other | Treasury services fees | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	1	0	0	1	0
Other | Total investment services fees | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	(14)	(11)	(7)	(25)	(15)
Other | Investment management and performance fees | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	(5)	(4)	(4)	(9)	(8)
Other | Financing-related fees | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	0	0	1	0	1
Other | Distribution and servicing | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	0	0	0	0	0
Other | Investment and other income | Operating segments
Disaggregation of Revenue [Line Items]
Total fee revenue - contract revenue	$ 3	$ 0	$ 0	$ 3	$ 0

Contract revenue - Narrative (D

Contract revenue - Narrative (Details) - USD ($)	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Capitalized Contract Cost [Line Items]
Contract with customer, asset	$ 2,400,000,000			$ 2,400,000,000		$ 2,419,000,000
Contract assets representing accrued revenues not yet billed	69,000,000			69,000,000		32,000,000
Contract with customer, liability	195,000,000			195,000,000		168,000,000
Contract with customer, liability, revenue recognized	58,000,000			78,000,000
Capitalized contract cost, impairment				0
Incremental costs for obtaining contracts
Capitalized Contract Cost [Line Items]
Capitalized contract costs	$ 80,000,000			$ 80,000,000		86,000,000
Capitalized contract cost, amortization period	9 years			9 years
Capitalized contract cost, amortization	$ 5,000,000	$ 5,000,000	$ 5,000,000	$ 10,000,000	$ 10,000,000
Costs to fulfill contract
Capitalized Contract Cost [Line Items]
Capitalized contract costs	14,000,000			14,000,000		$ 16,000,000
Capitalized contract cost, amortization	$ 2,000,000	$ 1,000,000	$ 2,000,000	$ 3,000,000	$ 3,000,000
Costs to fulfill contract | Minimum
Capitalized Contract Cost [Line Items]
Capitalized contract cost, amortization period	7 years			7 years
Costs to fulfill contract | Maximum
Capitalized Contract Cost [Line Items]
Capitalized contract cost, amortization period	9 years			9 years

Net interest revenue (Details)

Net interest revenue (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020		Jun. 30, 2019
Interest revenue
Deposits with the Federal Reserve and other central banks	$ (7)	$ 80	$ 113	$ 73		$ 252
Deposits with banks	40	58	64	98		127
Federal funds sold and securities purchased under resale agreements	61	396	568	457		1,042
Margin loans	40	87	119	127		254
Non-margin loans	230	309	365	539		720
Securities:
Taxable	556	594	687	1,150		1,393
Exempt from federal income taxes	6	6	10	12		22
Total securities	562	600	697	1,162		1,415
Trading securities	17	40	39	57		75
Total interest revenue	943	1,570	1,965	2,513		3,885
Interest expense
Deposits	(17)	240	432	223		823
Federal funds purchased and securities sold under repurchase agreements	1	275	372	276		703
Trading liabilities	2	7	11	9		18
Other borrowed funds	7	4	20	11		44
Commercial paper	1	6	18	7		26
Customer payables	(1)	30	69	29		139
Long-term debt	170	194	241	364		489
Total interest expense	163	756	1,163	919		2,242
Net interest revenue	780	814	802	1,594		1,643
Provision for credit losses	143	169	(8)	312	[1]	(1)	[1]
Net interest revenue after provision for credit losses	$ 637	$ 645	$ 810	$ 1,282		$ 1,644
[1]	In the first quarter of 2020, we adopted new accounting guidance included in ASU 2016-13, Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments, on a prospective basis. See Note 2 of the Notes to Consolidated Financial Statements for additional information.

Employee benefit plans - Combin

Employee benefit plans - Combined Data for Defined Benefit Pension and Post Retirement Healthcare Plans (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Pension Benefits | Domestic
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0	$ 0	$ 0	$ 0	$ 0
Interest cost	39	39	45	78	89
Expected return on assets	(79)	(80)	(84)	(159)	(168)
Other	21	22	13	43	26
Net periodic benefit (credit) cost	(19)	(19)	(26)	(38)	(53)
Pension Benefits | Foreign
Defined Benefit Plan Disclosure [Line Items]
Service cost	3	3	3	6	6
Interest cost	6	7	8	13	16
Expected return on assets	(9)	(10)	(12)	(19)	(23)
Other	3	3	1	6	1
Net periodic benefit (credit) cost	3	3	0	6	0
Healthcare Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0	0	0	0
Interest cost	1	1	1	2	3
Expected return on assets	(2)	(1)	(2)	(3)	(4)
Other	0	(1)	0	(1)	(1)
Net periodic benefit (credit) cost	$ (1)	$ (1)	$ (1)	$ (2)	$ (2)

Income taxes - Narrative (Detai

Income taxes - Narrative (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Provision for income taxes	$ 216	$ 265	$ 264	$ 481	$ 501
Effective tax rate	18.30%	21.60%	20.50%
Tax reserves	$ 178			178		$ 173
Impact on effective tax rate if tax reserves were unnecessary	178			178
Accrued interest, related to income taxes in the balance sheet	34			34
Additional tax expense related to interest				3	$ 6
Reasonably possible decrease in uncertain tax positions within the next 12 months, if a re-evaluation is required	$ 100			$ 100

Variable interest entities an_3

Variable interest entities and securitization - Assets and Liabilities of VIEs (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Variable Interest Entity [Line Items]
Nonredeemable noncontrolling interests	$ 112	$ 102
VME classification of carrying amount, assets	283	50
VME classification of carrying amount, liabilities	1	1
Noncontrolling interest in VME	37	1
Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
Trading assets	850	629
Other assets	10	16
Total assets	860	645
Other liabilities	403	388
Total liabilities	403	388
Nonredeemable noncontrolling interests	112	102
Variable Interest Entity, Primary Beneficiary | Investment Management funds
Variable Interest Entity [Line Items]
Trading assets	450	229
Other assets	10	16
Total assets	460	245
Other liabilities	4	1
Total liabilities	4	1
Nonredeemable noncontrolling interests	112	102
Variable Interest Entity, Primary Beneficiary | Securitization
Variable Interest Entity [Line Items]
Trading assets	400	400
Other assets	0	0
Total assets	400	400
Other liabilities	399	387
Total liabilities	399	387
Nonredeemable noncontrolling interests	$ 0	$ 0

Variable interest entities an_4

Variable interest entities and securitization - Non-consolidated VIEs (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Variable Interest Entity [Line Items]
Assets	$ 442,316	$ 381,508
Liabilities	398,350	339,780
Variable Interest Entity, Not Primary Beneficiary | Securities available-for-sale
Variable Interest Entity [Line Items]
Assets	199	208
Liabilities	0	0
Maximum loss exposure	199	208
Variable Interest Entity, Not Primary Beneficiary | Other
Variable Interest Entity [Line Items]
Assets	2,237	2,400
Liabilities	363	422
Maximum loss exposure	$ 2,609	$ 2,822

Preferred stock - Narrative (De

Preferred stock - Narrative (Details) - $ / shares	6 Months Ended
	Jun. 30, 2020	May 31, 2020	Dec. 31, 2019
Class of Stock [Line Items]
Preferred stock, shares authorized (shares)	100,000,000		100,000,000
Preferred stock, par value (usd per share)	$ 0.01		$ 0.01
Preferred stock, issued (shares)	45,826		35,826
Series G Noncumulative Perpetual Preferred Stock
Class of Stock [Line Items]
Preferred stock, issued (shares)		1,000,000
Per annum dividend rate	4.70%
Preferred stock, basis spread on variable rate	4.358%

Preferred stock - Summary (Deta

Preferred stock - Summary (Details) - USD ($) $ / shares in Units, $ in Millions	6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Class of Stock [Line Items]
Total shares issued and outstanding (shares)	45,826	35,826
Carrying value	$ 4,532	$ 3,542
Series A Noncumulative Perpetual Preferred Stock
Class of Stock [Line Items]
Per annum dividend rate description	Greater of (i) three-month LIBOR plus 0.565% for the related distribution period; or (ii) 4.000%
Per annum dividend rate	4.00%
Total shares issued and outstanding (shares)	5,001	5,001
Carrying value	$ 500	$ 500
Liquidation preference per share (usd per share)	$ 100,000
Series A Noncumulative Perpetual Preferred Stock | LIBOR
Class of Stock [Line Items]
Preferred stock, basis spread on variable rate	0.565%
Series C Noncumulative Perpetual Preferred Stock
Class of Stock [Line Items]
Per annum dividend rate	5.20%
Total shares issued and outstanding (shares)	5,825	5,825
Carrying value	$ 568	$ 568
Liquidation preference per share (usd per share)	$ 100,000
Series D Noncumulative Perpetual Preferred Stock
Class of Stock [Line Items]
Per annum dividend rate description	4.50% to but excluding June 20, 2023, then a floating rate equal to the three-month LIBOR plus 2.46%
Per annum dividend rate	4.50%
Total shares issued and outstanding (shares)	5,000	5,000
Carrying value	$ 494	$ 494
Liquidation preference per share (usd per share)	$ 100,000
Series D Noncumulative Perpetual Preferred Stock | LIBOR
Class of Stock [Line Items]
Preferred stock, basis spread on variable rate	2.46%
Series E Noncumulative Perpetual Preferred Stock
Class of Stock [Line Items]
Per annum dividend rate description	4.95% to but excluding June 20, 2020, then a floating rate equal to the three-month LIBOR plus 3.42%
Per annum dividend rate	4.95%
Total shares issued and outstanding (shares)	10,000	10,000
Carrying value	$ 990	$ 990
Liquidation preference per share (usd per share)	$ 100,000
Series E Noncumulative Perpetual Preferred Stock | LIBOR
Class of Stock [Line Items]
Preferred stock, basis spread on variable rate	3.42%
Series F Noncumulative Perpetual Preferred Stock
Class of Stock [Line Items]
Per annum dividend rate description	4.625% to but excluding Sept. 20, 2026, then a floating rate equal to the three-month LIBOR plus 3.131%
Per annum dividend rate	4.625%
Total shares issued and outstanding (shares)	10,000	10,000
Carrying value	$ 990	$ 990
Liquidation preference per share (usd per share)	$ 100,000
Series F Noncumulative Perpetual Preferred Stock | LIBOR
Class of Stock [Line Items]
Preferred stock, basis spread on variable rate	3.131%
Series G Noncumulative Perpetual Preferred Stock
Class of Stock [Line Items]
Per annum dividend rate description	4.70% to but excluding Sept. 20, 2025, then a floating rate equal to the five-year treasury rate plus 4.358%
Per annum dividend rate	4.70%
Preferred stock, basis spread on variable rate	4.358%
Total shares issued and outstanding (shares)	10,000	0
Carrying value	$ 990	$ 0
Liquidation preference per share (usd per share)	$ 100,000
Series G Noncumulative Perpetual Preferred Stock | LIBOR
Class of Stock [Line Items]
Preferred stock, basis spread on variable rate	4.358%

Preferred stock - Summary of Pr

Preferred stock - Summary of Preferred Dividends Paid (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Class of Stock [Line Items]
Preferred dividends paid	$ 49	$ 36	$ 48	$ 85	$ 84
Series A Preferred Stock
Class of Stock [Line Items]
Depositary shares per share	1.00%			1.00%
Dividend paid per share (usd per share)	$ 1,022.22	$ 1,011.11	$ 1,022.22	$ 2,033.33	$ 2,022.22
Preferred dividends paid	$ 5	$ 5	$ 5	$ 10	$ 10
Series C Preferred Stock
Class of Stock [Line Items]
Depositary shares per share	0.025%			0.025%
Dividend paid per share (usd per share)	$ 1,300	$ 1,300	$ 1,300	$ 2,600	$ 2,600
Preferred dividends paid	$ 8	$ 8	$ 7	$ 16	$ 15
Series D Preferred Stock
Class of Stock [Line Items]
Depositary shares per share	1.00%			1.00%
Dividend paid per share (usd per share)	$ 2,250		$ 2,250	$ 2,250	$ 2,250
Preferred dividends paid	$ 11	0	$ 11	$ 11	$ 11
Series E Preferred Stock
Class of Stock [Line Items]
Depositary shares per share	1.00%			1.00%
Dividend paid per share (usd per share)	$ 2,475		$ 2,475	$ 2,475	$ 2,475
Preferred dividends paid	$ 25	$ 0	$ 25	$ 25	$ 25
Series F Preferred Stock
Class of Stock [Line Items]
Depositary shares per share	1.00%			1.00%
Dividend paid per share (usd per share)		$ 2,312.50		$ 2,312.50	$ 2,312.50
Preferred dividends paid	$ 0	$ 23	$ 0	$ 23	$ 23
Series G Noncumulative Perpetual Preferred Stock
Class of Stock [Line Items]
Depositary shares per share	1.00%			1.00%

Other comprehensive income (l_3

Other comprehensive income (loss) - Components (Details) - USD ($) $ in Millions		3 Months Ended			6 Months Ended
		Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Pre-tax amount
Total other comprehensive income (loss), Pre-tax amount		$ 1,114	$ (21)	$ 420	$ 1,093	$ 777
Tax (expense) benefit
Total other comprehensive income (loss), Tax (expense) benefit		(230)	(165)	(118)	(395)	(202)
After-tax amount
Total other comprehensive income (loss), net of tax	[1]	884	(186)	302	698	575
Foreign currency translation
Pre-tax amount
Other comprehensive income (loss), Pre-tax amount		104	(265)	29	(161)	56
Total other comprehensive income (loss), Pre-tax amount		104	(265)	29	(161)	56
Tax (expense) benefit
Other comprehensive income (loss), Tax (expense) benefit		11	(104)	(19)	(93)	(17)
Total other comprehensive income (loss), Tax (expense) benefit		11	(104)	(19)	(93)	(17)
After-tax amount
Other comprehensive income (loss), After-tax amount		115	(369)	10	(254)	39
Total other comprehensive income (loss), net of tax		115	(369)	10	(254)	39
Unrealized gain (loss) on assets available-for-sale
Pre-tax amount
Other comprehensive income (loss), Pre-tax amount		989	243	384	1,232	706
Reclassification adjustment, Pre-tax amount		(9)	(9)	(7)	(18)	(8)
Total other comprehensive income (loss), Pre-tax amount		980	234	377	1,214	698
Tax (expense) benefit
Other comprehensive income (loss), Tax (expense) benefit		(236)	(60)	(97)	(296)	(180)
Reclassification adjustment, Tax (expense) benefit		2	2	2	4	2
Total other comprehensive income (loss), Tax (expense) benefit		(234)	(58)	(95)	(292)	(178)
After-tax amount
Other comprehensive income (loss), After-tax amount		753	183	287	936	526
Reclassification adjustment, After-tax amount		(7)	(7)	(5)	(14)	(6)
Total other comprehensive income (loss), net of tax		746	176	282	922	520
Defined benefit plans
Pre-tax amount
Other comprehensive income (loss), Pre-tax amount					0	(11)
Reclassification adjustment, Pre-tax amount		24	24	12	48	25
Total other comprehensive income (loss), Pre-tax amount		24	24	12	48	14
Tax (expense) benefit
Other comprehensive income (loss), Tax (expense) benefit					0	2
Reclassification adjustment, Tax (expense) benefit		(5)	(6)	(2)	(11)	(5)
Total other comprehensive income (loss), Tax (expense) benefit		(5)	(6)	(2)	(11)	(3)
After-tax amount
Other comprehensive income (loss), After-tax amount					0	(9)
Reclassification adjustment, After-tax amount		19	18	10	37	20
Total other comprehensive income (loss), net of tax		19	18	10	37	11
Unrealized gain (loss) on cash flow hedges
Pre-tax amount
Other comprehensive income (loss), Pre-tax amount		3	(13)	2	(10)	8
Reclassification adjustment, Pre-tax amount		3	(1)	0	2	1
Total other comprehensive income (loss), Pre-tax amount		6	(14)	2	(8)	9
Tax (expense) benefit
Other comprehensive income (loss), Tax (expense) benefit		(1)	3	(2)	2	(6)
Reclassification adjustment, Tax (expense) benefit		(1)	0	0	(1)	2
Total other comprehensive income (loss), Tax (expense) benefit		(2)	3	(2)	1	(4)
After-tax amount
Other comprehensive income (loss), After-tax amount		2	(10)	0	(8)	2
Reclassification adjustment, After-tax amount		2	(1)	0	1	3
Total other comprehensive income (loss), net of tax		4	(11)	0	(7)	5
Unrealized gain (loss) on cash flow hedges | Staff expense
Pre-tax amount
Reclassification adjustment, Pre-tax amount		3	(1)	0	2	1
Tax (expense) benefit
Reclassification adjustment, Tax (expense) benefit		(1)	0	0	(1)	2
After-tax amount
Reclassification adjustment, After-tax amount		$ 2	$ (1)	$ 0	$ 1	$ 3
[1]	Other comprehensive income (loss) attributable to The Bank of New York Mellon Corporation shareholders was $884 million for the quarter ended June 30, 2020 , $(184) million for the quarter ended March 31, 2020 , $302 million for the quarter ended June 30, 2019 , $700 million for the six months ended June 30, 2020 and $573 million for the six months ended June 30, 2019 .

Fair value measurement - Assets

Fair value measurement - Assets and Liabilities on Recurring Basis (Details) - USD ($) $ in Millions		Jun. 30, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		$ 110,067	$ 88,550
Trading assets:
Total derivatives fair value		9,973	9,061
Effect of master netting agreements		(5,640)	(5,819)
Total derivative assets		4,333	3,242
Trading liabilities:
Total derivatives fair value		9,692	9,206
Effect of master netting agreements		(5,817)	(5,415)
Derivative liabilities		3,875	3,791
Long-term debt		399	387
Investment management funds
Trading assets:
Trading assets		450	229
Other assets		10	16
Total assets		460	245
Trading liabilities:
Total liabilities		4	1
Interest rate contracts
Trading assets:
Effect of master netting agreements		(2,436)	(1,792)
Trading liabilities:
Effect of master netting agreements		(2,680)	(1,986)
Foreign exchange contracts
Trading assets:
Effect of master netting agreements		(3,204)	(4,021)
Trading liabilities:
Effect of master netting agreements		(3,134)	(3,428)
Equity contracts
Trading assets:
Effect of master netting agreements		0	(6)
Trading liabilities:
Effect of master netting agreements		(3)	(1)
Agency RMBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		26,437	27,043
U.S. Treasury
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		25,137	15,431
Sovereign debt/sovereign guaranteed
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		15,887	12,646
Agency commercial mortgage-backed securities (“MBS”)
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		9,988	9,417
Foreign covered bonds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		5,519	4,197
Supranational
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		5,448	3,709
Collateralized loan obligations (“CLOs”)
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		4,432	4,063
U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		2,806	1,949
Other ABS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		2,743	2,143
Commercial paper/certificates of deposit (“CDs”)
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		1,853
Non-agency RMBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		1,598	1,233
State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		1,179	1,044
Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		831	853
Other debt securities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		1	1
Not designated as hedging
Trading assets:
Total derivatives fair value		9,836	9,040
Trading liabilities:
Total derivatives fair value		8,728	8,599
Not designated as hedging | Interest rate contracts
Trading assets:
Total derivatives fair value		5,501	3,690
Trading liabilities:
Total derivatives fair value		4,668	3,250
Not designated as hedging | Foreign exchange contracts
Trading assets:
Total derivatives fair value		4,322	5,331
Trading liabilities:
Total derivatives fair value		4,036	5,340
Not designated as hedging | Equity contracts
Trading assets:
Total derivatives fair value		13	19
Trading liabilities:
Total derivatives fair value		22	5
Designated as hedging
Trading assets:
Total derivatives fair value		137	21
Trading liabilities:
Total derivatives fair value		964	607
Designated as hedging | Interest rate contracts
Trading assets:
Total derivatives fair value		0	0
Trading liabilities:
Total derivatives fair value		915	350
Designated as hedging | Foreign exchange contracts
Trading assets:
Total derivatives fair value		137	21
Trading liabilities:
Total derivatives fair value		49	257
Operating segments
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale	[1]	110,067	88,550
Trading assets:
Trading assets		14,150	13,571
Other assets		529	419
Trading liabilities:
Long-term debt		399	387
Operating segments | Investment management funds
Trading assets:
Total assets		460	245
Trading liabilities:
Total liabilities		4	1
Assets measured at fair value on a recurring basis
Trading assets:
Effect of master netting agreements		(5,640)	(5,819)
Total assets		125,206	102,785
Trading liabilities:
Effect of master netting agreements		(5,817)	(5,415)
Total liabilities		6,962	5,836
Assets measured at fair value on a recurring basis | Level 1
Trading assets:
Total assets		$ 41,361	$ 29,576
Percentage of total assets prior to netting		32.00%	27.00%
Trading liabilities:
Total liabilities		$ 2,617	$ 1,560
Percentage of total liabilities prior to netting		20.00%	14.00%
Assets measured at fair value on a recurring basis | Level 2
Trading assets:
Total assets		$ 89,298	$ 78,847
Percentage of total assets prior to netting		68.00%	73.00%
Trading liabilities:
Total liabilities		$ 10,162	$ 9,691
Percentage of total liabilities prior to netting		80.00%	86.00%
Assets measured at fair value on a recurring basis | Level 2 | Grantor Trust
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		$ 538	$ 640
Assets measured at fair value on a recurring basis | Level 3
Trading assets:
Total assets		$ 0	$ 0
Percentage of total assets prior to netting		0.00%	0.00%
Trading liabilities:
Total liabilities		$ 0	$ 0
Percentage of total liabilities prior to netting		0.00%	0.00%
Assets measured at fair value on a recurring basis | Operating segments
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		$ 110,067	$ 88,550
Trading assets:
Debt instruments		7,557	5,811
Equity instruments		2,397	4,539
Effect of master netting agreements		(5,640)	(5,819)
Trading assets		14,150	13,571
Other assets		205	217
Total assets		124,746	102,540
Trading liabilities:
Total trading liabilities		5,595	4,841
Effect of master netting agreements		(5,817)	(5,415)
Long-term debt		399	387
Total other liabilities – derivative liabilities designated as hedging		964
Total liabilities		6,958	5,835
Assets measured at fair value on a recurring basis | Operating segments | Investment management funds
Trading assets:
Total assets		460	245
Trading liabilities:
Total liabilities		4	1
Assets measured at fair value on a recurring basis | Operating segments | Interest rate contracts
Trading assets:
Effect of master netting agreements		(2,436)	(1,792)
Trading liabilities:
Effect of master netting agreements		(2,680)	(1,986)
Assets measured at fair value on a recurring basis | Operating segments | Foreign exchange contracts
Trading assets:
Effect of master netting agreements		(3,204)	(4,021)
Trading liabilities:
Effect of master netting agreements		(3,134)	(3,428)
Assets measured at fair value on a recurring basis | Operating segments | Equity contracts
Trading assets:
Effect of master netting agreements		0	(6)
Trading liabilities:
Effect of master netting agreements		(3)	(1)
Assets measured at fair value on a recurring basis | Operating segments | Agency RMBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		26,437	27,043
Assets measured at fair value on a recurring basis | Operating segments | U.S. Treasury
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		25,137	15,431
Assets measured at fair value on a recurring basis | Operating segments | Sovereign debt/sovereign guaranteed
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		15,887	12,646
Assets measured at fair value on a recurring basis | Operating segments | Agency commercial mortgage-backed securities (“MBS”)
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		9,988	9,417
Assets measured at fair value on a recurring basis | Operating segments | Foreign covered bonds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		5,519	4,197
Assets measured at fair value on a recurring basis | Operating segments | Supranational
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		5,448	3,709
Assets measured at fair value on a recurring basis | Operating segments | Collateralized loan obligations (“CLOs”)
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		4,432	4,063
Assets measured at fair value on a recurring basis | Operating segments | Foreign government agencies
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		3,578	2,643
Assets measured at fair value on a recurring basis | Operating segments | U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		2,806	1,949
Assets measured at fair value on a recurring basis | Operating segments | Other ABS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		2,743	2,143
Assets measured at fair value on a recurring basis | Operating segments | Non-agency commercial MBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		2,630	2,178
Assets measured at fair value on a recurring basis | Operating segments | Commercial paper/certificates of deposit (“CDs”)
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		1,853
Assets measured at fair value on a recurring basis | Operating segments | Non-agency RMBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		1,598	1,233
Assets measured at fair value on a recurring basis | Operating segments | State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		1,179	1,044
Assets measured at fair value on a recurring basis | Operating segments | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		831	853
Assets measured at fair value on a recurring basis | Operating segments | Other debt securities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		1	1
Assets measured at fair value on a recurring basis | Operating segments | Not designated as hedging
Trading assets:
Total derivative assets		4,196	3,221
Trading liabilities:
Effect of master netting agreements		(5,817)
Derivative liabilities		2,911	3,184
Assets measured at fair value on a recurring basis | Operating segments | Not designated as hedging | Interest rate contracts
Trading assets:
Total derivative assets		3,065	1,898
Trading liabilities:
Derivative liabilities		1,988	1,264
Assets measured at fair value on a recurring basis | Operating segments | Not designated as hedging | Foreign exchange contracts
Trading assets:
Total derivative assets		1,118	1,310
Trading liabilities:
Derivative liabilities		902	1,912
Assets measured at fair value on a recurring basis | Operating segments | Not designated as hedging | Equity contracts
Trading assets:
Total derivative assets		13	13
Trading liabilities:
Derivative liabilities		21	8
Assets measured at fair value on a recurring basis | Operating segments | Designated as hedging
Trading assets:
Total derivative assets		137	21
Trading liabilities:
Total other liabilities – derivative liabilities designated as hedging			607
Assets measured at fair value on a recurring basis | Operating segments | Designated as hedging | Interest rate contracts
Trading liabilities:
Derivative liabilities		915	350
Assets measured at fair value on a recurring basis | Operating segments | Designated as hedging | Foreign exchange contracts
Trading assets:
Total derivative assets		137	21
Trading liabilities:
Derivative liabilities		49	257
Assets measured at fair value on a recurring basis | Operating segments | Debt instruments
Trading liabilities:
Total trading liabilities		2,664	1,584
Assets measured at fair value on a recurring basis | Operating segments | Equity instruments
Trading liabilities:
Total trading liabilities		20	73
Assets measured at fair value on a recurring basis | Operating segments | Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		33,707	23,215
Trading assets:
Debt instruments		4,782	1,568
Equity instruments		2,397	4,539
Trading assets		7,186	6,111
Other assets		52	38
Total assets		$ 40,945	$ 29,364
Percentage of total assets prior to netting		31.00%	27.00%
Trading liabilities:
Total trading liabilities		$ 2,617	$ 1,559
Long-term debt		0	0
Total other liabilities – derivative liabilities designated as hedging		0
Total liabilities		$ 2,617	$ 1,559
Percentage of total liabilities prior to netting		20.00%	14.00%
Assets measured at fair value on a recurring basis | Operating segments | Level 1 | Investment management funds
Trading assets:
Total assets		$ 416	$ 212
Trading liabilities:
Total liabilities		0	1
Assets measured at fair value on a recurring basis | Operating segments | Level 1 | Agency RMBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 1 | U.S. Treasury
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		25,137	15,431
Assets measured at fair value on a recurring basis | Operating segments | Level 1 | Sovereign debt/sovereign guaranteed
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		8,570	7,784
Assets measured at fair value on a recurring basis | Operating segments | Level 1 | Agency commercial mortgage-backed securities (“MBS”)
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 1 | Foreign covered bonds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 1 | Supranational
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 1 | Collateralized loan obligations (“CLOs”)
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 1 | Foreign government agencies
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 1 | U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 1 | Other ABS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 1 | Non-agency commercial MBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 1 | Commercial paper/certificates of deposit (“CDs”)
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		0
Assets measured at fair value on a recurring basis | Operating segments | Level 1 | Non-agency RMBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 1 | State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 1 | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 1 | Other debt securities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 1 | Not designated as hedging
Trading assets:
Total derivatives fair value		7	4
Trading liabilities:
Total derivatives fair value		8	9
Assets measured at fair value on a recurring basis | Operating segments | Level 1 | Not designated as hedging | Interest rate contracts
Trading assets:
Total derivatives fair value		5	4
Trading liabilities:
Total derivatives fair value		7	6
Assets measured at fair value on a recurring basis | Operating segments | Level 1 | Not designated as hedging | Foreign exchange contracts
Trading assets:
Total derivatives fair value		0	0
Trading liabilities:
Total derivatives fair value		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 1 | Not designated as hedging | Equity contracts
Trading assets:
Total derivatives fair value		2	0
Trading liabilities:
Total derivatives fair value		1	3
Assets measured at fair value on a recurring basis | Operating segments | Level 1 | Designated as hedging
Trading assets:
Total derivatives fair value		0	0
Trading liabilities:
Total other liabilities – derivative liabilities designated as hedging			0
Assets measured at fair value on a recurring basis | Operating segments | Level 1 | Designated as hedging | Interest rate contracts
Trading liabilities:
Total derivatives fair value		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 1 | Designated as hedging | Foreign exchange contracts
Trading assets:
Total derivatives fair value		0	0
Trading liabilities:
Total derivatives fair value		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 1 | Debt instruments
Trading liabilities:
Total trading liabilities		2,589	1,477
Assets measured at fair value on a recurring basis | Operating segments | Level 1 | Equity instruments
Trading liabilities:
Total trading liabilities		20	73
Assets measured at fair value on a recurring basis | Operating segments | Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		76,360	65,335
Trading assets:
Debt instruments		2,775	4,243
Equity instruments		0	0
Trading assets		12,604	13,279
Other assets		153	179
Total assets		$ 89,254	$ 78,814
Percentage of total assets prior to netting		69.00%	73.00%
Trading liabilities:
Total trading liabilities		$ 8,795	$ 8,697
Long-term debt		399	387
Total other liabilities – derivative liabilities designated as hedging		964
Total liabilities		$ 10,158	$ 9,691
Percentage of total liabilities prior to netting		80.00%	86.00%
Assets measured at fair value on a recurring basis | Operating segments | Level 2 | Investment management funds
Trading assets:
Total assets		$ 44	$ 33
Trading liabilities:
Total liabilities		4	0
Assets measured at fair value on a recurring basis | Operating segments | Level 2 | Agency RMBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		26,437	27,043
Assets measured at fair value on a recurring basis | Operating segments | Level 2 | U.S. Treasury
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 2 | Sovereign debt/sovereign guaranteed
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		7,317	4,862
Assets measured at fair value on a recurring basis | Operating segments | Level 2 | Agency commercial mortgage-backed securities (“MBS”)
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		9,988	9,417
Assets measured at fair value on a recurring basis | Operating segments | Level 2 | Foreign covered bonds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		5,519	4,197
Assets measured at fair value on a recurring basis | Operating segments | Level 2 | Supranational
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		5,448	3,709
Assets measured at fair value on a recurring basis | Operating segments | Level 2 | Collateralized loan obligations (“CLOs”)
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		4,432	4,063
Assets measured at fair value on a recurring basis | Operating segments | Level 2 | Foreign government agencies
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		3,578	2,643
Assets measured at fair value on a recurring basis | Operating segments | Level 2 | U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		2,806	1,949
Assets measured at fair value on a recurring basis | Operating segments | Level 2 | Other ABS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		2,743	2,143
Assets measured at fair value on a recurring basis | Operating segments | Level 2 | Non-agency commercial MBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		2,630	2,178
Assets measured at fair value on a recurring basis | Operating segments | Level 2 | Commercial paper/certificates of deposit (“CDs”)
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		1,853
Assets measured at fair value on a recurring basis | Operating segments | Level 2 | Non-agency RMBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		1,598	1,233
Assets measured at fair value on a recurring basis | Operating segments | Level 2 | State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		1,179	1,044
Assets measured at fair value on a recurring basis | Operating segments | Level 2 | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		831	853
Assets measured at fair value on a recurring basis | Operating segments | Level 2 | Other debt securities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		1	1
Assets measured at fair value on a recurring basis | Operating segments | Level 2 | Not designated as hedging
Trading assets:
Total derivatives fair value		9,829	9,036
Trading liabilities:
Total derivatives fair value		8,720	8,590
Assets measured at fair value on a recurring basis | Operating segments | Level 2 | Not designated as hedging | Interest rate contracts
Trading assets:
Total derivatives fair value		5,496	3,686
Trading liabilities:
Total derivatives fair value		4,661	3,244
Assets measured at fair value on a recurring basis | Operating segments | Level 2 | Not designated as hedging | Foreign exchange contracts
Trading assets:
Total derivatives fair value		4,322	5,331
Trading liabilities:
Total derivatives fair value		4,036	5,340
Assets measured at fair value on a recurring basis | Operating segments | Level 2 | Not designated as hedging | Equity contracts
Trading assets:
Total derivatives fair value		11	19
Trading liabilities:
Total derivatives fair value		23	6
Assets measured at fair value on a recurring basis | Operating segments | Level 2 | Designated as hedging
Trading assets:
Total derivatives fair value		137	21
Trading liabilities:
Total other liabilities – derivative liabilities designated as hedging			607
Assets measured at fair value on a recurring basis | Operating segments | Level 2 | Designated as hedging | Interest rate contracts
Trading liabilities:
Total derivatives fair value		915	350
Assets measured at fair value on a recurring basis | Operating segments | Level 2 | Designated as hedging | Foreign exchange contracts
Trading assets:
Total derivatives fair value		137	21
Trading liabilities:
Total derivatives fair value		49	257
Assets measured at fair value on a recurring basis | Operating segments | Level 2 | Debt instruments
Trading liabilities:
Total trading liabilities		75	107
Assets measured at fair value on a recurring basis | Operating segments | Level 2 | Equity instruments
Trading liabilities:
Total trading liabilities		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		0	0
Trading assets:
Debt instruments		0	0
Equity instruments		0	0
Trading assets		0	0
Other assets		0	0
Total assets		$ 0	$ 0
Percentage of total assets prior to netting		0.00%	0.00%
Trading liabilities:
Total trading liabilities		$ 0	$ 0
Long-term debt		0	0
Total other liabilities – derivative liabilities designated as hedging		0
Total liabilities		$ 0	$ 0
Percentage of total liabilities prior to netting		0.00%	0.00%
Assets measured at fair value on a recurring basis | Operating segments | Level 3 | Investment management funds
Trading assets:
Total assets		$ 0	$ 0
Trading liabilities:
Total liabilities		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 3 | Agency RMBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 3 | U.S. Treasury
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 3 | Sovereign debt/sovereign guaranteed
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 3 | Agency commercial mortgage-backed securities (“MBS”)
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 3 | Foreign covered bonds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 3 | Supranational
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 3 | Collateralized loan obligations (“CLOs”)
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 3 | Foreign government agencies
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 3 | U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 3 | Other ABS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 3 | Non-agency commercial MBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 3 | Commercial paper/certificates of deposit (“CDs”)
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		0
Assets measured at fair value on a recurring basis | Operating segments | Level 3 | Non-agency RMBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 3 | State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 3 | Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 3 | Other debt securities
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 3 | Not designated as hedging
Trading assets:
Total derivatives fair value		0	0
Trading liabilities:
Total derivatives fair value		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 3 | Not designated as hedging | Interest rate contracts
Trading assets:
Total derivatives fair value		0	0
Trading liabilities:
Total derivatives fair value		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 3 | Not designated as hedging | Foreign exchange contracts
Trading assets:
Total derivatives fair value		0	0
Trading liabilities:
Total derivatives fair value		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 3 | Not designated as hedging | Equity contracts
Trading assets:
Total derivatives fair value		0	0
Trading liabilities:
Total derivatives fair value		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 3 | Designated as hedging
Trading assets:
Total derivatives fair value		0	0
Trading liabilities:
Total other liabilities – derivative liabilities designated as hedging			0
Assets measured at fair value on a recurring basis | Operating segments | Level 3 | Designated as hedging | Interest rate contracts
Trading liabilities:
Total derivatives fair value		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 3 | Designated as hedging | Foreign exchange contracts
Trading assets:
Total derivatives fair value		0	0
Trading liabilities:
Total derivatives fair value		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 3 | Debt instruments
Trading liabilities:
Total trading liabilities		0	0
Assets measured at fair value on a recurring basis | Operating segments | Level 3 | Equity instruments
Trading liabilities:
Total trading liabilities		0	0
Assets measured at fair value on a recurring basis | Operating segments | NAV
Trading assets:
Assets measured at NAV		$ 187	$ 181
[1]	In the first quarter of 2020, we adopted new accounting guidance included in ASU 2016-13, Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments, on a prospective basis. See Note 2 of the Notes to Consolidated Financial Statements for additional information.

Fair value measurement - Certai

Fair value measurement - Certain Items on Recurring Basis (Details) - Assets measured at fair value on a recurring basis - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Non-agency RMBS | Origination in 2004 and Earlier, 2005, 2006 and 2007 through 2020
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 538	$ 640
Non-agency RMBS
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 1,598	$ 1,233
Non-agency RMBS | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	51.00%	25.00%
Non-agency RMBS | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	6.00%	9.00%
Non-agency RMBS | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	2.00%	3.00%
Non-agency RMBS | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	41.00%	63.00%
Non-agency RMBS | 2007-2020
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 938	$ 464
Non-agency RMBS | 2007-2020 | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	82.00%	55.00%
Non-agency RMBS | 2007-2020 | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	1.00%	1.00%
Non-agency RMBS | 2007-2020 | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Non-agency RMBS | 2007-2020 | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	17.00%	44.00%
Non-agency RMBS | 2006
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 250	$ 291
Non-agency RMBS | 2006 | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Non-agency RMBS | 2006 | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	22.00%	21.00%
Non-agency RMBS | 2006 | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Non-agency RMBS | 2006 | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	78.00%	79.00%
Non-agency RMBS | 2005
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 262	$ 305
Non-agency RMBS | 2005 | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	5.00%	5.00%
Non-agency RMBS | 2005 | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	2.00%	2.00%
Non-agency RMBS | 2005 | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	7.00%	8.00%
Non-agency RMBS | 2005 | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	86.00%	85.00%
Non-agency RMBS | 2004 and earlier
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 148	$ 173
Non-agency RMBS | 2004 and earlier | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	21.00%	22.00%
Non-agency RMBS | 2004 and earlier | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	22.00%	24.00%
Non-agency RMBS | 2004 and earlier | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	8.00%	4.00%
Non-agency RMBS | 2004 and earlier | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	49.00%	50.00%
Non-agency commercial MBS | 2009-2020 | Domestic
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 2,630	$ 2,178
Non-agency commercial MBS | 2009-2020 | AAA/ AA- | Domestic
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	98.00%
Non-agency commercial MBS | 2009-2020 | A/ A- | Domestic
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	2.00%
Non-agency commercial MBS | 2009-2020 | BBB/ BBB- | Domestic
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Non-agency commercial MBS | 2009-2020 | BB and lower | Domestic
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 5,519	$ 4,197
Foreign covered bonds | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Foreign covered bonds | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds | Canada
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 2,241	$ 1,798
Foreign covered bonds | Canada | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Foreign covered bonds | Canada | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds | Canada | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds | Canada | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds | UK
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 1,093	$ 984
Foreign covered bonds | UK | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Foreign covered bonds | UK | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds | UK | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds | UK | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds | Australia
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 750	$ 431
Foreign covered bonds | Australia | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Foreign covered bonds | Australia | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds | Australia | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds | Australia | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds | Norway
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 533	$ 287
Foreign covered bonds | Norway | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Foreign covered bonds | Norway | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds | Norway | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds | Norway | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds | Germany
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 407	$ 357
Foreign covered bonds | Germany | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Foreign covered bonds | Germany | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds | Germany | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds | Germany | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds | Other
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 495	$ 340
Foreign covered bonds | Other | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Foreign covered bonds | Other | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds | Other | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign covered bonds | Other | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 15,887	$ 12,646
Sovereign Debt | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	74.00%	73.00%
Sovereign Debt | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	6.00%	5.00%
Sovereign Debt | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	19.00%	21.00%
Sovereign Debt | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	1.00%	1.00%
Sovereign Debt | Canada
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 502	$ 271
Sovereign Debt | Canada | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Sovereign Debt | Canada | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | Canada | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | Canada | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | UK
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 3,773	$ 3,318
Sovereign Debt | UK | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Sovereign Debt | UK | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | UK | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | UK | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | Germany
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 2,346	$ 1,997
Sovereign Debt | Germany | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Sovereign Debt | Germany | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | Germany | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | Germany | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | France
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 2,238	$ 1,272
Sovereign Debt | France | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Sovereign Debt | France | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | France | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | France | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | Spain
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 1,961	$ 1,453
Sovereign Debt | Spain | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | Spain | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	4.00%	6.00%
Sovereign Debt | Spain | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	96.00%	94.00%
Sovereign Debt | Spain | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | Italy
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 1,069	$ 1,260
Sovereign Debt | Italy | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | Italy | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | Italy | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Sovereign Debt | Italy | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | Singapore
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 931	$ 742
Sovereign Debt | Singapore | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Sovereign Debt | Singapore | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | Singapore | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | Singapore | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | Ireland
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 676	$ 301
Sovereign Debt | Ireland | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	29.00%	0.00%
Sovereign Debt | Ireland | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	71.00%	100.00%
Sovereign Debt | Ireland | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | Ireland | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | Netherlands
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 564	$ 791
Sovereign Debt | Netherlands | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Sovereign Debt | Netherlands | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | Netherlands | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | Netherlands | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | Japan
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 434	$ 274
Sovereign Debt | Japan | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | Japan | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Sovereign Debt | Japan | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | Japan | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | Belgium
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 411	$ 79
Sovereign Debt | Belgium | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Sovereign Debt | Belgium | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | Belgium | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | Belgium | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | Austria
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 331	$ 240
Sovereign Debt | Austria | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Sovereign Debt | Austria | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | Austria | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | Austria | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | Hong Kong
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 330	$ 411
Sovereign Debt | Hong Kong | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Sovereign Debt | Hong Kong | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | Hong Kong | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | Hong Kong | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Sovereign Debt | Other
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 321	$ 237
Sovereign Debt | Other | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	45.00%	39.00%
Sovereign Debt | Other | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	4.00%
Sovereign Debt | Other | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	21.00%	0.00%
Sovereign Debt | Other | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	34.00%	57.00%
Foreign government agencies
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 3,578	$ 2,643
Foreign government agencies | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	95.00%	95.00%
Foreign government agencies | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	5.00%	5.00%
Foreign government agencies | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign government agencies | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign government agencies | Canada
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 321	$ 71
Foreign government agencies | Canada | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	62.00%	0.00%
Foreign government agencies | Canada | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	38.00%	100.00%
Foreign government agencies | Canada | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign government agencies | Canada | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign government agencies | Germany
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 1,398	$ 1,131
Foreign government agencies | Germany | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Foreign government agencies | Germany | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign government agencies | Germany | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign government agencies | Germany | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign government agencies | France
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 281	$ 42
Foreign government agencies | France | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Foreign government agencies | France | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign government agencies | France | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign government agencies | France | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign government agencies | Netherlands
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 730	$ 678
Foreign government agencies | Netherlands | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Foreign government agencies | Netherlands | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign government agencies | Netherlands | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign government agencies | Netherlands | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign government agencies | Other
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 331	$ 274
Foreign government agencies | Other | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	84.00%	79.00%
Foreign government agencies | Other | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	16.00%	21.00%
Foreign government agencies | Other | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign government agencies | Other | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign government agencies | Sweden
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 276	$ 202
Foreign government agencies | Sweden | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Foreign government agencies | Sweden | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign government agencies | Sweden | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign government agencies | Sweden | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign government agencies | Finland
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 241	$ 245
Foreign government agencies | Finland | AAA/ AA-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	100.00%	100.00%
Foreign government agencies | Finland | A/ A-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign government agencies | Finland | BBB/ BBB-
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Foreign government agencies | Finland | BB and lower
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Ratings	0.00%	0.00%
Carrying amount | Sovereign debt/sovereign guaranteed | Sovereign debt/sovereign guaranteed | Brazil
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total carrying value	$ 109	$ 134

Fair value measurement - Asse_2

Fair value measurement - Assets on Nonrecurring Basis (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Decrease in fair value of loans of underlying collateral (less than)	$ 1	$ 1
Measured at fair value on a nonrecurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	53	58
Other assets	107	64
Total assets	160	122
Measured at fair value on a nonrecurring basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0
Other assets	0	0
Total assets	0	0
Measured at fair value on a nonrecurring basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	53	58
Other assets	107	64
Total assets	160	122
Measured at fair value on a nonrecurring basis | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	0	0
Other assets	0	0
Total assets	$ 0	$ 0

Fair value measurement - Financ

Fair value measurement - Financial Instruments (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Assets:
Securities held-to-maturity	$ 45,983	$ 34,805
Liabilities:
Long-term debt	399	387
Estimated fair value
Assets:
Interest-bearing deposits with the Federal Reserve and other central banks	112,728	95,042
Interest-bearing deposits with banks	18,063	14,832
Federal funds sold and securities purchased under resale agreements	36,638	30,182
Securities held-to-maturity	45,983	34,805
Loans	54,377	54,194
Other financial assets	5,941	6,063
Total assets	273,730	235,118
Liabilities:
Noninterest-bearing deposits	78,100	57,630
Interest-bearing deposits	226,917	200,846
Federal funds purchased and securities sold under repurchase agreements	14,512	11,401
Payables to customers and broker-dealers	25,012	18,758
Commercial paper	665	3,959
Borrowings	1,852	917
Long-term debt	28,875	27,858
Total liabilities	375,933	321,369
Estimated fair value | Level 1
Assets:
Interest-bearing deposits with the Federal Reserve and other central banks	0	0
Interest-bearing deposits with banks	0	0
Federal funds sold and securities purchased under resale agreements	0	0
Securities held-to-maturity	5,815	4,630
Loans	0	0
Other financial assets	4,776	4,830
Total assets	10,591	9,460
Liabilities:
Noninterest-bearing deposits	0	0
Interest-bearing deposits	0	0
Federal funds purchased and securities sold under repurchase agreements	0	0
Payables to customers and broker-dealers	0	0
Commercial paper	0	0
Borrowings	0	0
Long-term debt	0	0
Total liabilities	0	0
Estimated fair value | Level 2
Assets:
Interest-bearing deposits with the Federal Reserve and other central banks	112,728	95,042
Interest-bearing deposits with banks	18,063	14,832
Federal funds sold and securities purchased under resale agreements	36,638	30,182
Securities held-to-maturity	40,168	30,175
Loans	54,377	54,194
Other financial assets	1,165	1,233
Total assets	263,139	225,658
Liabilities:
Noninterest-bearing deposits	78,100	57,630
Interest-bearing deposits	226,917	200,846
Federal funds purchased and securities sold under repurchase agreements	14,512	11,401
Payables to customers and broker-dealers	25,012	18,758
Commercial paper	665	3,959
Borrowings	1,852	917
Long-term debt	28,875	27,858
Total liabilities	375,933	321,369
Estimated fair value | Level 3
Assets:
Interest-bearing deposits with the Federal Reserve and other central banks	0	0
Interest-bearing deposits with banks	0	0
Federal funds sold and securities purchased under resale agreements	0	0
Securities held-to-maturity	0	0
Loans	0	0
Other financial assets	0	0
Total assets	0	0
Liabilities:
Noninterest-bearing deposits	0	0
Interest-bearing deposits	0	0
Federal funds purchased and securities sold under repurchase agreements	0	0
Payables to customers and broker-dealers	0	0
Commercial paper	0	0
Borrowings	0	0
Long-term debt	0	0
Total liabilities	0	0
Carrying amount
Assets:
Interest-bearing deposits with the Federal Reserve and other central banks	112,728	95,042
Interest-bearing deposits with banks	18,045	14,811
Federal funds sold and securities purchased under resale agreements	36,638	30,182
Securities held-to-maturity	44,615	34,483
Loans	54,067	53,718
Other financial assets	5,941	6,063
Total assets	272,034	234,299
Liabilities:
Noninterest-bearing deposits	78,100	57,630
Interest-bearing deposits	227,370	201,836
Federal funds purchased and securities sold under repurchase agreements	14,512	11,401
Payables to customers and broker-dealers	25,012	18,758
Commercial paper	665	3,959
Borrowings	1,852	917
Long-term debt	27,167	27,114
Total liabilities	$ 374,678	$ 321,615

Fair value option - Assets and

Fair value option - Assets and Liabilities (Details) - Investment Management funds - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Assets of consolidated investment management funds:
Trading assets	$ 450	$ 229
Other assets	10	16
Total assets	460	245
Liabilities of consolidated investment management funds:
Other liabilities	4	1
Total liabilities	$ 4	$ 1

Fair value option - Narrative (

Fair value option - Narrative (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Fair value option of long-term debt	$ 240
Long-term debt, fair value	$ 399	$ 387

Fair value option - Changes in

Fair value option - Changes in Fair Value of Loans and Long-term Debt (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Long-term debt | Foreign exchange and other trading revenue
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gain (loss) change in fair value	$ (2)	$ (10)	$ (7)	$ (12)	$ (12)

Derivative instruments - Narrat

Derivative instruments - Narrative (Details) - USD ($)	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Counterparty default losses recorded	$ 0
Hedging derivatives, maturities, maximum				1 year
Non-derivative financial instruments designated as hedges of net investments in foreign subsidiaries were all long-term liabilities of BNY Mellon in various currencies				$ 172,000,000
Gain or (loss) recognized in income on derivatives	(1,000,000)	$ (15,000,000)	$ (4,000,000)	$ (16,000,000)	$ (10,000,000)
Value-at-risk methodology assumed holding period for instruments				1 day
Value-at-risk methodology confidence level percentage				99.00%
Additional collateral The Bank of New York Mellon would have to post for existing collateral arrangements, if The Bank of New York Mellon had fallen below investment grade	31,000,000			$ 31,000,000		$ 63,000,000
Foreign exchange contracts | Net investment hedging
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Hedged financial instruments, notional amount of derivative	7,600,000,000			7,600,000,000
Foreign exchange contracts | Forecasted Foreign Currency
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Amount of pre-tax gain (loss) to be reclassified in the next 12 months from AOCI to earnings				(3,000,000)
Foreign exchange contracts | Forecasted Foreign Currency | Cash flow hedges
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Hedged financial instruments, notional amount of derivative	312,000,000			$ 312,000,000
Original maturities, maximum, of hedged instruments				12 months
Pre-tax gain (loss) recognized in OCI related to cash flow hedges				$ (3,000,000)
Securities available-for-sale | Interest rate swap
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Hedged financial instruments	13,900,000,000			13,900,000,000
Hedged financial instruments, notional amount of derivative	13,900,000,000			13,900,000,000
Securities available-for-sale | Foreign currency forward
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Hedged financial instruments	131,000,000			131,000,000
Hedged financial instruments, notional amount of derivative	131,000,000			131,000,000
Long-term debt
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Hedged financial instruments	13,900,000,000			13,900,000,000
Long-term debt | Interest rate swap
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Hedged financial instruments, notional amount of derivative	13,900,000,000			$ 13,900,000,000
Original maturities, minimum, of hedged instruments				5 years
Original maturities, maximum, of hedged instruments				30 years
Not Designated as Hedging Instrument, Economic Hedge | Staff expense | Equity Swap
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Gain or (loss) recognized in income on derivatives	$ 28,000,000	$ (41,000,000)	$ 5,000,000	$ (13,000,000)	$ 23,000,000

Derivative instruments - Gains

Derivative instruments - Gains (Losses) Related to Hedging Derivative Portfolio Recognized in the Income Statement (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Derivative Instruments, Gain (Loss) [Line Items]
(Loss) recognized in the consolidated income statement due to fair value and cash flow hedging relationships	$ (1)	$ (15)	$ (4)	$ (16)	$ (10)
Interest rate contracts | Long-term debt | Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (loss) recognized on derivatives	47	714	300	761	485
Gain or (loss) recognized on hedged item	(49)	(708)	(298)	(757)	(482)
Interest rate contracts | Securities available-for-sale | Interest revenue
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (loss) recognized on derivatives	19	(1,033)	(486)	(1,014)	(869)
Gain or (loss) recognized on hedged item	(15)	1,011	480	996	856
FX contracts | Staff expense
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (loss) on cash flow hedges	(3)	1	0	(2)	(1)
FX contracts | Securities available-for-sale
Derivative Instruments, Gain (Loss) [Line Items]
Gain from components excluded from assessment of fair value hedge effectiveness, net	1	1		1	1
FX contracts | Securities available-for-sale | Other revenue
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (loss) recognized on derivatives	5	7	(5)	12	1
Gain or (loss) recognized on hedged item	$ (5)	$ (7)	$ 5	$ (12)	$ 0

Derivative instruments - Impact

Derivative instruments - Impact of Hedging Derivatives Used in Net Investment Hedging Relationships (Details) - FX contracts - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (loss) recognized in accumulated OCI on derivatives	$ (45)	$ 437	$ 76	$ 392	$ 70
Net interest revenue
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (loss) reclassified from accumulated OCI into income	$ 0	$ 0	$ 0	$ 0	$ 0

Derivative instruments - Hedged

Derivative instruments - Hedged Items in Fair Value Hedging Relationships (Details) - Fair value hedging - USD ($)	Jun. 30, 2020	Dec. 31, 2019
Long-term debt
Derivative [Line Items]
Carrying amount of hedged asset or liability, Long-term debt	$ 14,956,000,000	$ 13,945,000,000
Hedged liability, discontinued fair value hedge, cumulative decrease	(156,000,000)	(200,000,000)
Hedged liability, fair value hedge, cumulative increase (decrease)	919,000,000	116,000,000
Securities available-for-sale
Derivative [Line Items]
Carrying amount of hedged asset or liability, Available-for-sale securities	13,952,000,000	13,792,000,000
Hedge accounting basis adjustment increase (decrease), Available-for-sale securities	1,817,000,000	687,000,000
Hedge accounting basis adjustment increase (decrease), discontinued hedges	196,000,000	53,000,000
Not designated as hedging | Securities available-for-sale | Foreign exchange contracts
Derivative [Line Items]
Hedged financial instruments, carrying amount	$ 131,000,000	$ 142,000,000

Derivative instruments - Impa_2

Derivative instruments - Impact of Derivative Instruments on the Balance Sheet (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Asset derivatives fair value
Total derivatives fair value	$ 9,973	$ 9,061
Effect of master netting agreements	(5,640)	(5,819)
Fair value after effect of master netting agreements	4,333	3,242
Liability derivatives fair value
Total derivatives fair value	9,692	9,206
Effect of master netting agreements	(5,817)	(5,415)
Fair value after effect of master netting agreements	3,875	3,791
Derivative asset, collateral, obligation to return cash, offset	869	1,022
Derivative liability, collateral, right to reclaim cash, offset	1,046	618
Interest rate contracts
Asset derivatives fair value
Effect of master netting agreements	(2,436)	(1,792)
Liability derivatives fair value
Effect of master netting agreements	(2,680)	(1,986)
Foreign exchange contracts
Asset derivatives fair value
Effect of master netting agreements	(3,204)	(4,021)
Liability derivatives fair value
Effect of master netting agreements	(3,134)	(3,428)
Equity contracts
Asset derivatives fair value
Effect of master netting agreements	0	(6)
Liability derivatives fair value
Effect of master netting agreements	(3)	(1)
Designated as hedging
Asset derivatives fair value
Total derivatives fair value	137	21
Liability derivatives fair value
Total derivatives fair value	964	607
Designated as hedging | Interest rate contracts
Notional value
Notional amount of hedge	27,775	28,365
Asset derivatives fair value
Total derivatives fair value	0	0
Liability derivatives fair value
Total derivatives fair value	915	350
Designated as hedging | Foreign exchange contracts
Notional value
Notional amount of hedge	8,040	8,390
Asset derivatives fair value
Total derivatives fair value	137	21
Liability derivatives fair value
Total derivatives fair value	49	257
Not designated as hedging
Asset derivatives fair value
Total derivatives fair value	9,836	9,040
Liability derivatives fair value
Total derivatives fair value	8,728	8,599
Not designated as hedging | Interest rate contracts
Notional value
Notional amount of hedge	217,613	306,790
Asset derivatives fair value
Total derivatives fair value	5,501	3,690
Liability derivatives fair value
Total derivatives fair value	4,668	3,250
Not designated as hedging | Foreign exchange contracts
Notional value
Notional amount of hedge	781,991	848,961
Asset derivatives fair value
Total derivatives fair value	4,322	5,331
Liability derivatives fair value
Total derivatives fair value	4,036	5,340
Not designated as hedging | Equity contracts
Notional value
Notional amount of hedge	1,657	3,189
Asset derivatives fair value
Total derivatives fair value	13	19
Liability derivatives fair value
Total derivatives fair value	22	5
Not designated as hedging | Credit contracts
Notional value
Notional amount of hedge	165	165
Asset derivatives fair value
Total derivatives fair value	0	0
Liability derivatives fair value
Total derivatives fair value	$ 2	$ 4

Derivative instruments - Revenu

Derivative instruments - Revenue from Foreign Exchange and Other Trading (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Foreign exchange	$ 174	$ 253	$ 150	$ 427	$ 310
Other trading revenue	(8)	66	16	58	26
Total foreign exchange and other trading revenue	$ 166	$ 319	$ 166	$ 485	$ 336

Derivative instruments - Contra

Derivative instruments - Contracts Falling under Early Termination Provisions (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Credit Derivatives [Line Items]
Aggregate fair value of OTC derivatives in net liability positions	$ 5,951	$ 3,442
Collateral posted	6,372	3,671
A3 | A-
Credit Derivatives [Line Items]
Aggregate fair value of OTC derivatives in net liability positions	31	56
Baa2 | BBB
Credit Derivatives [Line Items]
Aggregate fair value of OTC derivatives in net liability positions	558	608
Ba1 | BB plus
Credit Derivatives [Line Items]
Aggregate fair value of OTC derivatives in net liability positions	$ 2,981	$ 2,084

Derivative instruments - Offset

Derivative instruments - Offsetting (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Derivative Asset
Derivatives subject to netting arrangements, Gross assets recognized	$ 7,584	$ 7,264
Total derivatives subject to netting arrangements, Gross amounts offset in the balance sheet	5,640	5,819
Derivatives subject to netting arrangements, Net assets recognized in the balance sheet	1,944	1,445
Total derivatives, Gross amounts not offset in the balance sheet, Financial instruments	392	251
Total derivatives, Gross amounts not offset in the balance sheet, Cash collateral received	0	0
Derivative assets subject to netting arrangements, Net amount	1,552	1,194
Total derivatives not subject to netting arrangements	2,389	1,797
Total derivatives, Gross assets recognized	9,973	9,061
Fair value after effect of master netting agreements	4,333	3,242
Total derivatives, Net amount	3,941	2,991
Reverse repurchase agreements, Gross assets recognized	72,781	112,355
Reverse repurchase agreements, Gross amounts offset in the balance sheet	48,615	93,794
Reverse repurchase agreements, Net assets recognized on the balance sheet	24,166	18,561
Reverse repurchase agreements, Gross amounts not offset in the balance sheet, Financial instruments	24,140	18,554
Reverse repurchase agreements, Gross amounts not offset in the balance sheet, Cash collateral received	0	0
Reverse repurchase agreements, Net amount	26	7
Securities borrowing, Gross assets recognized	12,472	11,621
Securities borrowing, Net assets recognized on the balance sheet	12,472	11,621
Securities borrowing, Gross amounts not offset in the balance sheet, Financial instruments	11,843	11,278
Securities borrowing, Net amount	629	343
Total, Gross assets recognized	95,226	133,037
Total, Gross amounts offset in the balance sheet	54,255	99,613
Total, Net assets recognized on the balance sheet	40,971	33,424
Total, Gross amounts not offset in the balance sheet, Financial instruments	36,375	30,083
Total, Gross amounts not offset in the balance sheet, Cash collateral received	0	0
Total, Net amount	4,596	3,341
Derivative Liability
Derivatives subject to netting arrangements, Gross liabilities recognized	9,275	8,428
Derivatives subject to netting arrangements, Gross amounts offset in the balance sheet	5,817	5,415
Derivatives subject to netting arrangements, Net liabilities recognized in the balance sheet	3,458	3,013
Total derivatives, Gross amounts not offset in the balance sheet, Financial instruments	2,999	1,615
Total derivatives, Gross amounts not offset in the balance sheet, Cash collateral pledged	0	0
Derivative liabilities subject to netting arrangements, Net amount	459	1,398
Total derivatives not subject to netting arrangements	417	778
Total derivatives, Gross liabilities recognized	9,692	9,206
Fair value after effect of master netting agreements	3,875	3,791
Total derivatives, Net amount	876	2,176
Repurchase agreements, Gross liabilities recognized	59,794	104,451
Repurchase agreements, Gross amounts offset in the balance sheet	48,615	93,794
Repurchase agreements, Net liabilities recognized on the balance sheet	11,179	10,657
Repurchase agreements, Gross amounts not offset in the balance sheet, Financial instruments	11,175	10,657
Repurchase agreements, Gross amounts not offset in the balance sheet, Cash collateral pledged	0	0
Repurchase agreements, Net amount	4	0
Securities lending, Gross liabilities recognized	982	718
Securities lending, Net liabilities recognized on the balance sheet	982	718
Securities lending, Gross amounts not offset in the balance sheet, Financial instruments	962	694
Securities lending, Net amount	20	24
Total, Gross liabilities recognized	70,468	114,375
Total, Gross amounts offset in the balance sheet	54,432	99,209
Total, Net liabilities recognized on the balance sheet	16,036	15,166
Total, Gross amounts not offset in the balance sheet, Financial instruments	15,136	12,966
Total, Gross amounts not offset in the balance sheet, Cash collateral pledged	0	0
Total, Net amount	900	2,200
Interest rate contracts
Derivative Asset
Derivatives subject to netting arrangements, Gross assets recognized	3,549	2,394
Total derivatives subject to netting arrangements, Gross amounts offset in the balance sheet	2,436	1,792
Derivatives subject to netting arrangements, Net assets recognized in the balance sheet	1,113	602
Total derivatives, Gross amounts not offset in the balance sheet, Financial instruments	384	207
Total derivatives, Gross amounts not offset in the balance sheet, Cash collateral received	0	0
Derivative assets subject to netting arrangements, Net amount	729	395
Derivative Liability
Derivatives subject to netting arrangements, Gross liabilities recognized	5,563	3,550
Derivatives subject to netting arrangements, Gross amounts offset in the balance sheet	2,680	1,986
Derivatives subject to netting arrangements, Net liabilities recognized in the balance sheet	2,883	1,564
Total derivatives, Gross amounts not offset in the balance sheet, Financial instruments	2,849	1,539
Total derivatives, Gross amounts not offset in the balance sheet, Cash collateral pledged	0	0
Derivative liabilities subject to netting arrangements, Net amount	34	25
Foreign exchange contracts
Derivative Asset
Derivatives subject to netting arrangements, Gross assets recognized	4,026	4,861
Total derivatives subject to netting arrangements, Gross amounts offset in the balance sheet	3,204	4,021
Derivatives subject to netting arrangements, Net assets recognized in the balance sheet	822	840
Total derivatives, Gross amounts not offset in the balance sheet, Financial instruments	7	44
Total derivatives, Gross amounts not offset in the balance sheet, Cash collateral received	0	0
Derivative assets subject to netting arrangements, Net amount	815	796
Derivative Liability
Derivatives subject to netting arrangements, Gross liabilities recognized	3,690	4,873
Derivatives subject to netting arrangements, Gross amounts offset in the balance sheet	3,134	3,428
Derivatives subject to netting arrangements, Net liabilities recognized in the balance sheet	556	1,445
Total derivatives, Gross amounts not offset in the balance sheet, Financial instruments	150	74
Total derivatives, Gross amounts not offset in the balance sheet, Cash collateral pledged	0	0
Derivative liabilities subject to netting arrangements, Net amount	406	1,371
Equity and other contracts
Derivative Asset
Derivatives subject to netting arrangements, Gross assets recognized	9	9
Total derivatives subject to netting arrangements, Gross amounts offset in the balance sheet	0	6
Derivatives subject to netting arrangements, Net assets recognized in the balance sheet	9	3
Total derivatives, Gross amounts not offset in the balance sheet, Financial instruments	1	0
Total derivatives, Gross amounts not offset in the balance sheet, Cash collateral received	0	0
Derivative assets subject to netting arrangements, Net amount	8	3
Derivative Liability
Derivatives subject to netting arrangements, Gross liabilities recognized	22	5
Derivatives subject to netting arrangements, Gross amounts offset in the balance sheet	3	1
Derivatives subject to netting arrangements, Net liabilities recognized in the balance sheet	19	4
Total derivatives, Gross amounts not offset in the balance sheet, Financial instruments	0	2
Total derivatives, Gross amounts not offset in the balance sheet, Cash collateral pledged	0	0
Derivative liabilities subject to netting arrangements, Net amount	$ 19	$ 2

Derivative instruments - Secure

Derivative instruments - Secured Borrowings (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	$ 59,794	$ 104,451
Securities lending	982	718
Total borrowings	60,776	105,169
Overnight and continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	55,264	99,953
Securities lending	982	718
Total borrowings	56,246	100,671
Up to 30 days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	500	1,323
Securities lending	0	0
Total borrowings	500	1,323
30 days or more
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	4,030	3,175
Securities lending	0	0
Total borrowings	4,030	3,175
U.S. Treasury
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	53,359	94,798
U.S. Treasury | Overnight and continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	52,950	94,788
U.S. Treasury | Up to 30 days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	300	10
U.S. Treasury | 30 days or more
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	109	0
U.S. government agencies
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	642	610
Securities lending	21	19
U.S. government agencies | Overnight and continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	642	594
Securities lending	21	19
U.S. government agencies | Up to 30 days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	0	16
Securities lending	0	0
U.S. government agencies | 30 days or more
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	0	0
Securities lending	0	0
Agency RMBS
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	1,533	5,008
Agency RMBS | Overnight and continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	1,384	4,234
Agency RMBS | Up to 30 days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	0	774
Agency RMBS | 30 days or more
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	149	0
Corporate bonds
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	1,490	2,119
Corporate bonds | Overnight and continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	195	266
Corporate bonds | Up to 30 days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	23	236
Corporate bonds | 30 days or more
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	1,272	1,617
Other debt securities
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	1,921	1,307
Securities lending	191	201
Other debt securities | Overnight and continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	93	40
Securities lending	191	201
Other debt securities | Up to 30 days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	79	188
Securities lending	0	0
Other debt securities | 30 days or more
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	1,749	1,079
Securities lending	0	0
Equity securities
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	849	609
Securities lending	770	498
Equity securities | Overnight and continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	0	31
Securities lending	770	498
Equity securities | Up to 30 days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	98	99
Securities lending	0	0
Equity securities | 30 days or more
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	751	479
Securities lending	$ 0	$ 0

Commitments and contingent li_3

Commitments and contingent liabilities - Summary of Off-Balance Sheet Credit Risks, Net of Participations (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Securities lending indemnifications, joint venture	$ 58,000	$ 57,000
Invested in reverse repurchase agreements
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Cash collateral invested in indemnified repurchase agreements	40,000	37,000
Lending commitments
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet credit risks	49,147	49,119
Standby letters of credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet credit risks	2,291	2,298
Off-balance sheet credit risks participations	145	146
Commercial letters of credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet credit risks	59	74
Securities lending indemnifications
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet credit risks	$ 417,924	$ 408,378

Commitments and contingent li_4

Commitments and contingent liabilities - Narrative (Details)	Dec. 19, 2019claim	Dec. 17, 2015lawsuit	Jun. 30, 2020USD ($)claim	Dec. 31, 2019USD ($)	Dec. 31, 2009claim
Commitments and Contingencies Disclosure [Line Items]
Lending commitment maturing in less than one year			$ 32,600,000,000
Lending commitment maturing in one to five years			16,200,000,000
Lending commitment maturing over five years			$ 319,000,000
Collateralization percentage generally required for a securities lending transaction with indemnification against broker default			102.00%
Securities lending indemnifications, secured amount of collateral			$ 438,000,000,000	$ 428,000,000,000
Securities lending indemnifications, joint venture			58,000,000,000	57,000,000,000
Securities lending indemnifications, collateral joint venture			$ 62,000,000,000	61,000,000,000
Matters Related to R. Allen Stanford
Commitments and Contingencies Disclosure [Line Items]
Number of lawsuits or class actions pending | claim					2
Number of claims dismissed | claim	6
Number of lawsuits filed | claim			13
Brazilian Postalis Litigation
Commitments and Contingencies Disclosure [Line Items]
Number of lawsuits filed | lawsuit		3
Maximum
Commitments and Contingencies Disclosure [Line Items]
Loss contingency, aggregate range of reasonable loss (up to)			$ 730,000,000
Standby letters of credit
Commitments and Contingencies Disclosure [Line Items]
Standby letters of credit (SBLC) collateralized with cash and securities			185,000,000	184,000,000
SBLC expiring within one year			1,700,000,000
SBLC expiring within one to five years			545,000,000
SBLC expiring after five years			7,000,000
Off-balance sheet credit risks			2,291,000,000	2,298,000,000
Commercial letters of credit
Commitments and Contingencies Disclosure [Line Items]
Off-balance sheet credit risks			59,000,000	74,000,000
Unsettled Repurchase Agreements
Commitments and Contingencies Disclosure [Line Items]
Guarantor obligations, maximum exposure, undiscounted			0
Unsettled Reverse Repurchase Agreements
Commitments and Contingencies Disclosure [Line Items]
Guarantor obligations, maximum exposure, undiscounted			0
Operating segments
Commitments and Contingencies Disclosure [Line Items]
Allowance for credit losses on lending related commitments			$ 152,000,000	$ 94,000,000
Federal Court | Mortgage-Securitization Trusts Proceedings
Commitments and Contingencies Disclosure [Line Items]
Number of lawsuits or class actions pending | claim			4
State Court | Mortgage-Securitization Trusts Proceedings
Commitments and Contingencies Disclosure [Line Items]
Number of lawsuits or class actions pending | claim			1

Commitments and contingent li_5

Commitments and contingent liabilities - Standby Letters of Credits by Investment Grade (Details) - Standby letters of credit	Jun. 30, 2020	Dec. 31, 2019
Investment grade
Concentration Risk [Line Items]
Standby letters of credit by investment grade	89.00%	90.00%
Non-investment grade
Concentration Risk [Line Items]
Standby letters of credit by investment grade	11.00%	10.00%

Commitments and contingent li_6

Commitments and contingent liabilities - Significant Industry Concentrations Related to Credit Exposure (Details) $ in Billions	Jun. 30, 2020USD ($)
Financial institutions
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Loans	$ 10.8
Unfunded commitments	35.5
Total exposure	46.3
Financial institutions | Securities industry
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Loans	1.6
Unfunded commitments	24.5
Total exposure	26.1
Financial institutions | Banks
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Loans	7
Unfunded commitments	1.1
Total exposure	8.1
Financial institutions | Asset managers
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Loans	1.3
Unfunded commitments	6.3
Total exposure	7.6
Financial institutions | Insurance
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Loans	0.1
Unfunded commitments	2.7
Total exposure	2.8
Financial institutions | Government
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Loans	0.1
Unfunded commitments	0.2
Total exposure	0.3
Financial institutions | Other
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Loans	0.7
Unfunded commitments	0.7
Total exposure	1.4
Commercial
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Loans	2.4
Unfunded commitments	11.8
Total exposure	14.2
Commercial | Manufacturing
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Loans	1.1
Unfunded commitments	3.5
Total exposure	4.6
Commercial | Services and other
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Loans	1.1
Unfunded commitments	3.3
Total exposure	4.4
Commercial | Energy and utilities
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Loans	0.1
Unfunded commitments	4.1
Total exposure	4.2
Commercial | Media and telecom
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Loans	0.1
Unfunded commitments	0.9
Total exposure	$ 1

Lines of business - Narrative (

Lines of business - Narrative (Details)	6 Months Ended
	Jun. 30, 2020business
Segment Reporting [Abstract]
Number of principal businesses (business)	2

Supplemental information to t_3

Supplemental information to the Consolidated Statement of Cash Flows (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Supplemental Cash Flow Information [Abstract]
Change in assets of consolidated investment management funds	$ 215	$ 76
Change in liabilities of consolidated investment management funds	3	4
Change in nonredeemable noncontrolling interests of consolidated investment management funds	10	65
Securities purchased not settled	1,730	1,113
Securities matured not settled	0	10
Premises and equipment/capitalized software funded by finance lease obligations	0	14
Premises and equipment/operating lease obligations	66	1,272
Investment redemptions not settled	$ 0	$ 0

Lines of business - Contributio

Lines of business - Contribution of Segments to Overall Profitability (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020		Jun. 30, 2019
Segment Reporting Information [Line Items]
Total fee and other revenue	$ 3,176	$ 3,332	$ 3,112	$ 6,508		$ 6,144
Net interest revenue (expense)	780	814	802	1,594		1,643
Provision for credit losses	143	169	(8)	312	[1]	(1)	[1]
Income from consolidated investment management funds, net of noncontrolling interests	950	980	1,017	1,930		1,963
Investment income (loss), net	54	(38)	10	16		36
Net income (loss) attributable to noncontrolling interests	15	(18)	4	(3)		14
Operating segments
Segment Reporting Information [Line Items]
Total fee and other revenue	3,215	3,312	3,118	6,527		6,166
Net interest revenue (expense)	780	814	802	1,594		1,643
Total revenue	3,995	4,126	3,920	8,121		7,809
Provision for credit losses	143	169	(8)	312		(1)
Noninterest expense	2,686	2,712	2,647	5,398		5,346
Income (loss) before taxes	$ 1,166	$ 1,245	$ 1,281	$ 2,411		$ 2,464
Pre-tax operating margin	29.00%	30.00%	33.00%	30.00%		32.00%
Average assets	$ 415,359	$ 385,278	$ 342,384	$ 400,318		$ 339,292
Operating segments | Investment Services
Segment Reporting Information [Line Items]
Total fee and other revenue	2,339	2,436	2,233	4,775		4,394
Net interest revenue (expense)	768	806	783	1,574		1,587
Total revenue	3,107	3,242	3,016	6,349		5,981
Provision for credit losses	145	149	(4)	294		4
Noninterest expense	1,989	1,987	1,963	3,976		3,944
Income (loss) before taxes	$ 973	$ 1,106	$ 1,057	$ 2,079		$ 2,033
Pre-tax operating margin	31.00%	34.00%	35.00%	33.00%		34.00%
Average assets	$ 335,288	$ 304,089	$ 264,781	$ 319,689		$ 260,432
Operating segments | Investment and Wealth Management
Segment Reporting Information [Line Items]
Total fee and other revenue	838	846	854	1,684		1,723
Net interest revenue (expense)	48	52	59	100		126
Total revenue	886	898	913	1,784		1,849
Provision for credit losses	7	9	(2)	16		(1)
Noninterest expense	658	695	655	1,353		1,324
Income (loss) before taxes	$ 221	$ 194	$ 260	$ 415		$ 526
Pre-tax operating margin	25.00%	22.00%	29.00%	23.00%		28.00%
Average assets	$ 30,327	$ 30,543	$ 29,793	$ 30,435		$ 30,819
Income from consolidated investment management funds, net of noncontrolling interests	39	(20)	6	19		22
Investment income (loss), net	54	(38)	10	16		36
Net income (loss) attributable to noncontrolling interests	15	(18)	4	(3)		14
Operating segments | Other
Segment Reporting Information [Line Items]
Total fee and other revenue	38	30	31	68		49
Net interest revenue (expense)	(36)	(44)	(40)	(80)		(70)
Total revenue	2	(14)	(9)	(12)		(21)
Provision for credit losses	(9)	11	(2)	2		(4)
Noninterest expense	39	30	29	69		78
Income (loss) before taxes	(28)	(55)	(36)	(83)		(95)
Average assets	$ 49,744	$ 50,646	$ 47,810	$ 50,194		$ 48,041
[1]	In the first quarter of 2020, we adopted new accounting guidance included in ASU 2016-13, Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments, on a prospective basis. See Note 2 of the Notes to Consolidated Financial Statements for additional information.

Supplemental information to t_4

Supplemental information to the Consolidated Statement of Cash Flows - Footnote (Details) - USD ($) $ in Millions	6 Months Ended		12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018
Lessee, Lease, Description [Line Items]
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201613Member	us-gaap:AccountingStandardsUpdate201602Member	us-gaap:AccountingStandardsUpdate201613Member	us-gaap:AccountingStandardsUpdate201802Member
Premises and equipment/operating lease obligations	$ 66	$ 1,272
New or Modified Leases
Lessee, Lease, Description [Line Items]
Premises and equipment/operating lease obligations		28
Cumulative Effect, Period Of Adoption, Adjustment
Lessee, Lease, Description [Line Items]
Premises and equipment/operating lease obligations		$ 1,244

Uncategorized Items - form10-q2

Label	Element	Value
Restricted Cash and Cash Equivalents	us-gaap_RestrictedCashAndCashEquivalents	$ 2,036,000,000
Restricted Cash and Cash Equivalents	us-gaap_RestrictedCashAndCashEquivalents	2,210,000,000
Cash and Cash Equivalents, at Carrying Value	us-gaap_CashAndCashEquivalentsAtCarryingValue	4,776,000,000
Cash and Cash Equivalents, at Carrying Value	us-gaap_CashAndCashEquivalentsAtCarryingValue	$ 5,556,000,000