Capital One Financial (COF) 10-Q 6 Aug 20 2020 Q2 Quarterly report Financial data

Cover Page

Cover Page - shares	6 Months Ended
	Jun. 30, 2020	Jul. 31, 2020
Entity Information [Line Items]
Document Type	10-Q
Document Period End Date	Jun. 30, 2020
Document Quarterly Report	true
Document Transition Report	false
Entity File Number	001-13300
Entity Registrant Name	CAPITAL ONE FINANCIAL CORP
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	54-1719854
Entity Address, Address Line One	1680 Capital One Drive,
Entity Address, City or Town	McLean,
Entity Address, State or Province	VA
Entity Address, Postal Zip Code	22102
City Area Code	703
Local Phone Number	720-1000
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		456,635,765
Entity Central Index Key	0000927628
Amendment Flag	false
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--12-31
Common Stock (par value $.01 per share)
Entity Information [Line Items]
Title of 12(b) Security	Common Stock (par value $.01 per share)
Trading Symbol	COF
Security Exchange Name	NYSE
Depositary Shares, Each Representing a 1/40th Interest in a Share of Fixed Rate Non-Cumulative Perpetual Preferred Stock, Series F
Entity Information [Line Items]
Title of 12(b) Security	Depositary Shares, Each Representing a 1/40th Interest in a Share of Fixed Rate Non-Cumulative Perpetual Preferred Stock, Series F
Trading Symbol	COF PRF
Security Exchange Name	NYSE
Depositary Shares, Each Representing a 1/40th Interest in a Share of Fixed Rate Non-Cumulative Perpetual Preferred Stock, Series G
Entity Information [Line Items]
Title of 12(b) Security	Depositary Shares, Each Representing a 1/40th Interest in a Share of Fixed Rate Non-Cumulative Perpetual Preferred Stock, Series G
Trading Symbol	COF PRG
Security Exchange Name	NYSE
Depositary Shares, Each Representing a 1/40th Interest in a Share of Fixed Rate Non-Cumulative Perpetual Preferred Stock, Series H
Entity Information [Line Items]
Title of 12(b) Security	Depositary Shares, Each Representing a 1/40th Interest in a Share of Fixed Rate Non-Cumulative Perpetual Preferred Stock, Series H
Trading Symbol	COF PRH
Security Exchange Name	NYSE
Depositary Shares, Each Representing a 1/40th Interest in a Share of Fixed Rate Non-Cumulative Perpetual Preferred Stock, Series I
Entity Information [Line Items]
Title of 12(b) Security	Depositary Shares, Each Representing a 1/40th Interest in a Share of Fixed Rate Non-Cumulative Perpetual Preferred Stock, Series I
Trading Symbol	COF PRI
Security Exchange Name	NYSE
Depositary Shares, Each Representing a 1/40th Interest in a Share of Fixed Rate Non-Cumulative Perpetual Preferred Stock, Series J
Entity Information [Line Items]
Title of 12(b) Security	Depositary Shares, Each Representing a 1/40th Interest in a Share of Fixed Rate Non-Cumulative Perpetual Preferred Stock, Series J
Trading Symbol	COF PRJ
Security Exchange Name	NYSE
0.800% Senior Notes Due 2024
Entity Information [Line Items]
Title of 12(b) Security	0.800% Senior Notes Due 2024
Trading Symbol	COF24
Security Exchange Name	NYSE
1.650% Senior Notes Due 2029
Entity Information [Line Items]
Title of 12(b) Security	1.650% Senior Notes Due 2029
Trading Symbol	COF29
Security Exchange Name	NYSE

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Interest income:
Loans, including loans held for sale	$ 5,820	$ 6,383	$ 12,362	$ 12,751
Investment securities	482	629	1,012	1,284
Other	16	64	53	133
Total interest income	6,318	7,076	13,427	14,168
Interest expense:
Deposits	611	870	1,342	1,687
Securitized debt obligations	56	139	155	282
Senior and subordinated notes	180	310	419	624
Other borrowings	11	11	26	38
Total interest expense	858	1,330	1,942	2,631
Net interest income	5,460	5,746	11,485	11,537
Provision for credit losses	4,246	1,342	9,669	3,035
Net interest income after provision for credit losses	1,214	4,404	1,816	8,502
Non-interest income:
Interchange fees, net	672	820	1,424	1,578
Service charges and other customer-related fees	258	352	585	705
Net securities gains	0	15	0	39
Other	166	191	311	348
Total non-interest income	1,096	1,378	2,320	2,670
Non-interest expense:
Salaries and associate benefits	1,704	1,558	3,331	3,131
Occupancy and equipment	523	521	1,040	1,014
Marketing	273	546	764	1,063
Professional services	304	314	591	605
Communications and data processing	308	329	610	632
Amortization of intangibles	16	29	38	59
Other	642	482	1,125	946
Total non-interest expense	3,770	3,779	7,499	7,450
Income (loss) from continuing operations before income taxes	(1,460)	2,003	(3,363)	3,722
Income tax provision (benefit)	(543)	387	(1,106)	696
Income (loss) from continuing operations, net of tax	(917)	1,616	(2,257)	3,026
Income (loss) from discontinued operations, net of tax	(1)	9	(1)	11
Net income (loss)	(918)	1,625	(2,258)	3,037
Dividends and undistributed earnings allocated to participating securities	(1)	(12)	(4)	(24)
Preferred stock dividends	(90)	(80)	(145)	(132)
Issuance cost for redeemed preferred stock	0	0	(22)	0
Net income (loss) available to common stockholders	$ (1,009)	$ 1,533	$ (2,429)	$ 2,881
Basic earnings per common share:
Net income (loss) from continuing operations	$ (2.21)	$ 3.24	$ (5.31)	$ 6.11
Income from discontinued operations	0	0.02	0	0.02
Net income (loss) per basic common share	(2.21)	3.26	(5.31)	6.13
Diluted earnings per common share:
Net income (loss) from continuing operations	(2.21)	3.22	(5.31)	6.08
Income from discontinued operations (in dollars per share)	0	0.02	0	0.02
Net income (loss) per diluted common share	$ (2.21)	$ 3.24	$ (5.31)	$ 6.10

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 1,625	$ 3,037
Other comprehensive income (loss), net of tax:
Net unrealized gains on securities available for sale	272	564
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax	537	814
Net unrealized gains on hedging relationships	537	814
Foreign currency translation adjustments	15	45
Net changes in securities held to maturity	6	12
Other	0	(2)
Other comprehensive income, net of tax	830	1,433
Comprehensive income (loss)	$ 2,455	$ 4,470

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Cash and cash equivalents:
Cash and due from banks	$ 4,583	$ 4,129
Interest-bearing deposits and other short-term investments	51,235	9,278
Total cash and cash equivalents	55,818	13,407
Restricted cash for securitization investors	740	342
Securities available for sale (amortized cost of $84.7 billion and allowance for credit losses of $3 million as of June 30, 2020)	87,859	79,213
Loans held for investment:
Total loans held for investment	251,512	265,809
Allowance for credit losses	(16,832)	(7,208)
Net loans held for investment	234,680	258,601
Loans held for sale ($668 million and $251 million carried at fair value at June 30, 2020 and December 31, 2019, respectively)	711	400
Premises and equipment, net	4,324	4,378
Interest receivable	1,574	1,758
Goodwill	14,645	14,653
Other assets	20,945	17,613
Total assets	421,296	390,365
Liabilities:
Interest payable	380	439
Deposits:
Non-interest-bearing deposits	29,055	23,488
Interest-bearing deposits	275,183	239,209
Total deposits	304,238	262,697
Securitized debt obligations	15,761	17,808
Other debt:
Federal funds purchased and securities loaned or sold under agreements to repurchase	573	314
Senior and subordinated notes	28,481	30,472
Other borrowings	85	7,103
Total other debt	29,139	37,889
Other liabilities	15,733	13,521
Total liabilities	365,251	332,354
Commitments, contingencies and guarantees (see Note 13)
Stockholders’ equity:
Preferred stock (par value $.01 per share; 50,000,000 shares authorized; 5,350,000 and 4,975,000 shares issued and outstanding as of June 30, 2020 and December 31, 2019, respectively)	0	0
Common stock (par value $.01 per share; 1,000,000,000 shares authorized; 677,226,807 and 672,969,391 shares issued as of June 30, 2020 and December 31, 2019, respectively; 456,335,486 and 456,562,399 shares outstanding as of June 30, 2020 and December 31, 2019, respectively)	7	7
Additional paid-in capital, net	33,556	32,980
Retained earnings	35,361	40,340
Accumulated other comprehensive income	3,981	1,156
Treasury stock, at cost (par value $.01 per share; 220,891,321 and 216,406,992 shares as of June 30, 2020 and December 31, 2019, respectively)	(16,860)	(16,472)
Total stockholders’ equity	56,045	58,011
Total liabilities and stockholders’ equity	421,296	390,365
Loans held in consolidated trusts
Loans held for investment:
Total loans held for investment	29,202	33,817
Total assets	30,404	35,519
Other debt:
Total liabilities	15,890	18,201
Unsecuritized loans held for investment
Loans held for investment:
Total loans held for investment	$ 222,310	$ 231,992

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	50,000,000	50,000,000
Preferred stock, shares issued	5,350,000	4,975,000
Preferred stock, shares outstanding	5,350,000	4,975,000
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	1,000,000,000	1,000,000,000
Common stock, shares issued	677,226,807	672,969,391
Common stock, shares outstanding	456,335,486	456,562,399
Treasury stock, par value	$ 0.01	$ 0.01
Treasury stock, common, shares	220,891,321	216,406,992
Loans held for sale	$ 668	$ 251
Securities available for sale, amortized cost	84,742	$ 77,984
Securities available for sale, allowance for credit loss	$ 3

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Millions		Total	Preferred Stock	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Cumulative effects from adoption of the CECL standard	Cumulative effects from adoption of the CECL standardRetained Earnings	Cumulative effects from adoption of the CECL standardAccumulated Other Comprehensive Income (Loss)
Beginning balance (shares) at Dec. 31, 2018			4,475,000	667,969,069
Beginning balance at Dec. 31, 2018		$ 51,668	$ 0	$ 7	$ 32,040	$ 35,875	$ (1,263)	$ (14,991)	$ (11)	$ (11)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income		2,015				1,412	603
Dividends, common stock (shares)	[1]			32,700
Dividends, common stock	[1]	(191)		$ 0	3	(194)
Dividends, preferred stock		(52)				(52)
Purchases of treasury stock		(65)						(65)
Issuances of common stock and restricted stock, net of forfeitures (shares)				2,641,635
Issuances of common stock and restricted stock, net of forfeitures		52		$ 0	52
Exercises of stock options (shares)				5,000
Exercises of stock options		0		$ 0	0
Compensation expense for restricted stock units and stock options		65			65
Ending balance (shares) at Mar. 31, 2019			4,475,000	670,648,404
Ending balance at Mar. 31, 2019		53,481	$ 0	$ 7	32,160	37,030	(660)	(15,056)
Beginning balance (shares) at Dec. 31, 2018			4,475,000	667,969,069
Beginning balance at Dec. 31, 2018		51,668	$ 0	$ 7	32,040	35,875	(1,263)	(14,991)	(11)	(11)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income		4,470
Ending balance (shares) at Jun. 30, 2019			4,475,000	671,406,101
Ending balance at Jun. 30, 2019		55,767	$ 0	$ 7	32,262	38,386	170	(15,058)
Beginning balance (shares) at Mar. 31, 2019			4,475,000	670,648,404
Beginning balance at Mar. 31, 2019		53,481	$ 0	$ 7	32,160	37,030	(660)	(15,056)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income		2,455				1,625	830
Dividends, common stock (shares)	[1]			8,680
Dividends, common stock	[1]	(188)		$ 0	1	(189)
Dividends, preferred stock		(80)				(80)
Purchases of treasury stock		(2)						(2)
Issuances of common stock and restricted stock, net of forfeitures (shares)				745,017
Issuances of common stock and restricted stock, net of forfeitures		46		$ 0	46
Exercises of stock options (shares)				4,000
Exercises of stock options		0		$ 0	0
Compensation expense for restricted stock units and stock options		55			55
Ending balance (shares) at Jun. 30, 2019			4,475,000	671,406,101
Ending balance at Jun. 30, 2019		55,767	$ 0	$ 7	32,262	38,386	170	(15,058)
Beginning balance (shares) at Dec. 31, 2019			4,975,000	672,969,391
Beginning balance at Dec. 31, 2019		58,011	$ 0	$ 7	32,980	40,340	1,156	(16,472)	(2,192)	(2,184)	$ (8)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income		1,191				(1,340)	2,531
Dividends, common stock (shares)	[1]			23,213
Dividends, common stock	[1]	(185)		$ 0	2	(187)
Dividends, preferred stock		(55)				(55)
Purchases of treasury stock		(386)						(386)
Issuances of common stock and restricted stock, net of forfeitures (shares)				2,618,628
Issuances of common stock and restricted stock, net of forfeitures		63		$ 0	63
Exercises of stock options (shares)				559,333
Exercises of stock options		20		$ 0	20
Issuances of preferred stock (shares)			1,250,000
Issuances of preferred stock		1,209	$ 0		1,209
Redemptions of preferred stock (shares)			(875,000)
Redemptions of preferred stock		(875)	$ 0		(853)	(22)
Compensation expense for restricted stock units and stock options		29			29
Ending balance (shares) at Mar. 31, 2020			5,350,000	676,170,565
Ending balance at Mar. 31, 2020		56,830	$ 0	$ 7	33,450	36,552	3,679	(16,858)
Beginning balance (shares) at Dec. 31, 2019			4,975,000	672,969,391
Beginning balance at Dec. 31, 2019		58,011	$ 0	$ 7	32,980	40,340	1,156	(16,472)	$ (2,192)	$ (2,184)	$ (8)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income		575
Ending balance (shares) at Jun. 30, 2020			5,350,000	677,226,807
Ending balance at Jun. 30, 2020		56,045	$ 0	$ 7	33,556	35,361	3,981	(16,860)
Beginning balance (shares) at Mar. 31, 2020			5,350,000	676,170,565
Beginning balance at Mar. 31, 2020		56,830	$ 0	$ 7	33,450	36,552	3,679	(16,858)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income		(616)				(918)	302
Dividends, common stock (shares)	[1]			6,521
Dividends, common stock	[1]	(183)		$ 0	0	(183)
Dividends, preferred stock		(90)				(90)
Purchases of treasury stock		(2)						(2)
Issuances of common stock and restricted stock, net of forfeitures (shares)				1,041,311
Issuances of common stock and restricted stock, net of forfeitures		58		$ 0	58
Exercises of stock options (shares)				8,410
Exercises of stock options		0		$ 0	0
Compensation expense for restricted stock units and stock options		48			48
Ending balance (shares) at Jun. 30, 2020			5,350,000	677,226,807
Ending balance at Jun. 30, 2020		$ 56,045	$ 0	$ 7	$ 33,556	$ 35,361	$ 3,981	$ (16,860)
[1]	We declared dividend per share on our common stock of $0.40 in the second quarter of 2020 and 2019 , and $0.80 in the first six months of 2020 and 2019 .

CONSOLIDATED STATEMENTS OF CH_2

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
StatementOfStockholdersEquityAbstract [Abstract]
Dividend per share on common stock declared (in dollars per share)	$ 0.40	$ 0.40	$ 0.80	$ 0.80

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Operating activities:
Income (loss) from continuing operations, net of tax	$ (2,257)	$ 3,026
Income (loss) from discontinued operations, net of tax	(1)	11
Net income (loss)	(2,258)	3,037
Adjustments to reconcile net income (loss) to net cash from operating activities:
Provision for credit losses	9,669	3,035
Depreciation and amortization, net	1,804	1,585
Deferred tax benefit	(1,574)	(15)
Net securities losses (gains)	0	(39)
Gain on sales of loans	(11)	(57)
Stock-based compensation expense	74	129
Other	(7)	0
Loans held for sale:
Originations and purchases	(4,347)	(5,371)
Proceeds from sales and paydowns	4,002	4,869
Changes in operating assets and liabilities:
Changes in interest receivable	184	70
Changes in other assets	954	1,251
Changes in interest payable	(59)	(21)
Changes in other liabilities	783	634
Net change from discontinued operations	1	0
Net cash from operating activities	9,215	9,107
Securities available for sale:
Purchases	(14,568)	(5,674)
Proceeds from paydowns and maturities	9,113	3,362
Proceeds from sales	144	3,983
Securities held to maturity:
Purchases	0	(396)
Proceeds from paydowns and maturities	0	1,657
Loans:
Net changes in loans held for investment	9,797	(3,395)
Principal recoveries of loans previously charged off	1,292	1,323
Net purchases of premises and equipment	(342)	(396)
Net cash from other investing activities	(377)	(589)
Net cash from investing activities	5,059	(125)
Financing activities:
Changes in deposits	41,234	4,513
Issuance of securitized debt obligations	1,248	2,617
Maturities and paydowns of securitized debt obligations	(3,593)	(4,126)
Issuance of senior and subordinated notes and long-term FHLB advances	3,987	2,646
Maturities and paydowns of senior and subordinated notes and long-term FHLB advances	(7,156)	(2,751)
Changes in other borrowings	(6,759)	(9,069)
Common stock:
Net proceeds from issuances	121	98
Dividends paid	(368)	(379)
Preferred stock:
Net proceeds from issuances	1,209	0
Dividends paid	(145)	(132)
Redemptions	(875)	0
Purchases of treasury stock	(388)	(67)
Proceeds from share-based payment activities	20	0
Net cash from financing activities	28,535	(6,650)
Changes in cash, cash equivalents and restricted cash for securitization investors	42,809	2,332
Cash, cash equivalents and restricted cash for securitization investors, beginning of the period	13,749	13,489
Cash, cash equivalents and restricted cash for securitization investors, end of the period	56,558	15,821
Non-cash items:
Net transfers from (to) loans held for investment to (from) loans held for sale	(36)	1,428
Interest paid	2,088	2,411
Income tax paid	$ 137	$ 181

Summary of Significant Accounti

Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2020
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	NOTE 1—SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES The Company Capital One Financial Corporation, a Delaware Corporation established in 1994 and headquartered in McLean, Virginia, is a diversified financial services holding company with banking and non-banking subsidiaries. Capital One Financial Corporation and its subsidiaries (the “Company”) offer a broad array of financial products and services to consumers, small businesses and commercial clients through digital channels, branches, Cafés and other distribution channels. As of June 30, 2020 , our principal subsidiaries included: • Capital One Bank (USA), National Association (“COBNA”), which offers credit and debit card products, other lending products and deposit products; and • Capital One, National Association (“CONA”), which offers a broad spectrum of banking products and financial services to consumers, small businesses and commercial clients. The Company is hereafter collectively referred to as “we,” “us” or “our.” COBNA and CONA are collectively referred to as the “Banks.” We also offer products outside of the United States of America (“U.S.”) principally through Capital One (Europe) plc (“COEP”), an indirect subsidiary of COBNA organized and located in the United Kingdom (“U.K.”), and through a branch of COBNA in Canada. COEP has authority, among other things, to provide credit card loans. Our branch of COBNA in Canada also has the authority to provide credit card loans. Our principal operations are organized for management reporting purposes into three major business segments, which are defined primarily based on the products and services provided or the types of customer served: Credit Card, Consumer Banking and Commercial Banking. We provide details on our business segments, the integration of recent acquisitions, if any, into our business segments and the allocation methodologies and accounting policies used to derive our business segment results in “ Note 12—Business Segments and Revenue from Contracts with Customers .” Basis of Presentation and Use of Estimates The accompanying unaudited interim consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the U.S. (“U.S. GAAP”). The preparation of the consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and in the related disclosures. These estimates are based on information available as of the date of the consolidated financial statements. While management makes its best judgments, actual amounts or results could differ from these estimates. In the opinion of management, all normal, recurring adjustments have been included for a fair statement of this interim financial information. Certain prior period amounts have been reclassified to conform to the current period presentation. These unaudited interim consolidated financial statements should be read in conjunction with the audited consolidated financial statements, and related notes thereto, included in Capital One Financial Corporation’s 2019 Annual Report on Form 10-K (“2019 Form 10-K”). Income Taxes Our effective tax rates in the second quarter and first six months of 2020 were computed utilizing the estimated annual effective tax rate method and were driven by the relationship of our tax credits in proportion to our pre-tax earnings. We changed our methodology from the year-to-date method utilized in the first quarter of 2020 due to passage of time as we recorded two quarters of actual results that reduced forecast variability for the remainder of the year. Significant Accounting Policies Impacted by our Adoption of the CECL Standard In the first quarter of 2020, we adopted ASU No. 2016-13, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (“CECL standard”) and updated the below significant accounting policies. Investment Securities We classify securities as available for sale or held to maturity based on our investment strategy and management’s assessment of our intent and ability to hold the securities until maturity. We did not have any securities that were classified as held to maturity as of June 30, 2020. We report securities available for sale on our consolidated balance sheets at fair value. The amortized cost of investment securities reflects the amount for which the security was acquired, adjusted for accrued interest, amortization of premiums, discounts, and net deferred fees and costs, collection of cash, and charge-offs. We elect to present accrued interest for securities available for sale within interest receivable on our consolidated balance sheets. Unrealized gains or losses are recorded, net of tax, as a component of accumulated other comprehensive income (“AOCI”). Unamortized premiums, discounts and other basis adjustments for available for sale securities are recognized in interest income over the contractual lives of the securities using the effective interest method. We record purchases and sales of investment securities available for sale on a trade date basis. Realized gains or losses from the sale of debt securities are computed using the first-in first-out method of identification, and are included in non-interest income in our consolidated statements of income. An individual debt security is impaired when the fair value of the security is less than its amortized cost. If we intend to sell an available for sale security in an unrealized loss position or it is more likely than not that we will be required to sell the security prior to recovery of its amortized cost basis, any allowance for credit losses is reversed through our provision for credit losses and the difference between the amortized cost basis of the security and its fair value is recognized in our consolidated statements of income. For impaired debt securities that we have both the intent and ability to hold, the securities are evaluated to determine if a credit loss exists. The allowance for credit losses on our investment securities is recognized through our provision for credit losses and limited by the unrealized losses of a security measured as the difference between the security’s amortized cost and fair value. See further discussion below under the “Allowance for Credit Losses - Available for Sale Investment Securities” section of this Note. Our investment portfolio also includes certain debt securities that, at the time of purchase, had experienced a more-than-insignificant deterioration in credit quality since origination. Such debt securities are accounted for in accordance with accounting guidance for purchased financial assets with credit deterioration and are herein referred to as purchased credit-deteriorated (“PCD”) securities. PCD securities require the recognition of an allowance for credit losses at the time of acquisition. The allowance for credit losses is not recognized in earnings. Instead, the purchase price and the initial allowance collectively represent the amortized cost basis of a PCD security. Any noncredit discount or premium at the date of acquisition is amortized into interest income over the remaining life of the security. Subsequent to the date of purchase, we re-measure the allowance for credit losses on the amortized cost basis using the same policies as for other debt securities available for sale and changes are recognized through our provision for credit losses. See further discussion below under the “Allowance for Credit Losses - Available for Sale Investment Securities” section of this Note. We charge off any portion of an investment security that we determine is uncollectible. The amortized cost basis, excluding accrued interest, is charged off through the allowance for credit losses. Accrued interest is charged off as a reduction to interest income. Recoveries of previously charged off principal amounts are recognized in our provision for credit losses when received. Loans Our loan portfolio consists of loans held for investment, including loans underlying our consolidated securitization trusts, and loans held for sale and is divided into three portfolio segments: credit card, consumer banking and commercial banking loans. Credit card loans consist of domestic and international credit card loans. Consumer banking loans consist of auto and retail banking loans. Commercial banking loans consist of commercial and multifamily real estate as well as commercial and industrial loans. Loan Classification Upon origination or purchase, we classify loans as held for investment or held for sale based on our investment strategy and management’s intent and ability with regard to the loans, which may change over time. The accounting and measurement framework for loans differs depending on the loan classification, whether we elect the fair value option, whether the loans are originated or purchased and whether purchased loans are considered to have experienced a more-than-insignificant deterioration in credit quality since origination. The presentation within the consolidated statements of cash flows is based on management’s intent at acquisition or origination. Cash flows related to loans that are acquired or originated with the intent to hold for investment are included in cash flows from investing activities on our consolidated statements of cash flows. Cash flows related to loans that are acquired or originated with the intent to sell are included in cash flows from operating activities on our consolidated statements of cash flows. Loans Held for Investment Loans that we have the ability and intent to hold for the foreseeable future and loans associated with consolidated securitization transactions are classified as held for investment. Loans classified as held for investment, except for credit card loans, are reported at their amortized cost basis, excluding accrued interest. For these loans, we elect to present accrued interest within interest receivable in our consolidated balance sheets. For credit card loans, billed finance charges and fees are included in loans held for investment. Unbilled finance charges and fees on credit card loans are included in interest receivable. Interest income is recognized on performing loans held for investment on an accrual basis. We defer loan origination fees and direct loan origination costs on originated loans, premiums and discounts on purchased loans and loan commitment fees. We recognize these amounts in interest income as yield adjustments over the life of the loan and/or commitment period using the effective interest method. For credit card loans, loan origination fees and direct loan origination costs are amortized on a straight-line basis over a 12 -month period. The amortized cost of loans held for investment is subject to our allowance for credit losses methodology described below under the “Allowance for Credit Losses - Loans Held for Investment” section of this Note. Loans Held for Sale Loans purchased or originated with the intent to sell or for which we do not have the ability and intent to hold for the foreseeable future are classified as held for sale. Multifamily commercial real estate loans originated with the intent to sell to government-sponsored enterprises are accounted for under the fair value option. We elect the fair value option on these loans as part of our management of interest rate risk with corresponding forward sale commitments. Loan origination fees and direct loan origination costs are recognized as incurred and are reported in other non-interest income in the consolidated statements of income. Interest income is calculated based on the loan's stated rate of interest and is reported in interest income in the consolidated statements of income. Fair value adjustments are recorded in other non-interest income in the consolidated statements of income. All other loans classified as held for sale are recorded at the lower of cost or fair value. Loan origination fees, direct loan origination costs and any discounts and premiums are deferred until the loan is sold and are then recognized as part of the total gain or loss on sale. The fair value of loans held for sale is determined on an aggregate portfolio basis for each loan type. Fair value adjustments are recorded in other non-interest income in the consolidated statements of income. If a loan is transferred from held for investment to held for sale, then on the transfer date, any decline in fair value related to credit is recorded as a charge-off and any allowance for credit losses is reversed through our provision for credit losses. The loan is then reclassified to held for sale at its amortized cost at the date of the transfer. A valuation allowance is established, if needed, such that the loan held for sale is recorded at the lower of cost or fair value. Subsequent to transfer, we report write-downs or recoveries in fair value up to the carrying value at the date of transfer and realized gains or losses on loans held for sale in our consolidated statements of income as a component of other non-interest income. We calculate the gain or loss on loan sales as the difference between the proceeds received and the carrying value of the loans sold, net of the fair value of any residual interests retained. Loans Acquired All purchased loans, including loans transferred in a business combination, are initially recorded at fair value, which includes consideration of expected future losses, as of the date of the acquisition. To determine the fair value of loans at acquisition, we estimate discounted contractual cash flows due using an observable market rate of interest, when available, adjusted for factors that a market participant would consider in determining fair value. In determining fair value, contractual cash flows are adjusted to include prepayment estimates based upon historical payment trends, forecasted default rates and loss severities and other relevant factors. The difference between the fair value and the contractual cash flows is recorded as a loan premium or discount, which may relate to either credit or non-credit factors, at acquisition. We account for purchased loans under the accounting guidance for purchased financial assets with credit deterioration when, at the time of purchase, the loans have experienced a more-than-insignificant deterioration in credit quality since origination. We also account for loans under this guidance when the loans were previously accounted for under the accounting guidance for purchased credit impaired loans and debt securities (“PCI”) prior to our adoption of Accounting Standards Codification (“ASC”) 326, Financial Instruments - Credit Losses , on January 1, 2020. We refer to these loans which are accounted for under accounting guidance for purchased financial assets with more-than-insignificant deterioration in credit quality since origination as “PCD loans”. We recognize an allowance for credit losses on purchased loans that have not experienced a more-than-insignificant deterioration in credit quality since origination at the time of purchase through earnings in a manner that is consistent with originated loans. The policies relating to the allowance for credit losses on loans is described below in the “Allowance for Credit Losses - Loans Held for Investment” section of this Note. Loan Modifications and Restructurings As part of our loss mitigation efforts, we may provide modifications to a borrower experiencing financial difficulty to improve long-term collectability of the loan and to avoid the need for foreclosure or repossession of collateral, if any. Our loan modifications typically include short-term payment deferrals, an extension of the loan term, a reduction in the interest rate, a reduction in the loan balance, or a combination of these concessions. A loan modification in which a concession is granted to a borrower experiencing financial difficulty is accounted for and reported as a troubled debt restructuring (“TDR”). See “ Note 3—Loans ” for additional information on our loan modifications and restructurings, including those in response to the COVID-19 pandemic. Delinquent and Nonperforming Loans The entire balance of a loan is considered contractually delinquent if the minimum required payment is not received by the first statement cycle date equal to or following the due date specified on the customer’s billing statement. Delinquency is reported on loans that are 30 or more days past due. Interest and fees continue to accrue on past due loans until the date the loan is placed on nonaccrual status, if applicable. For loan modifications, delinquency and nonaccrual status are reported in accordance with the revised terms of the loans. We generally place loans on nonaccrual status when we believe the collectability of interest and principal is not reasonably assured. Nonperforming loans generally include loans that have been placed on nonaccrual status. We do not report loans classified as held for sale as nonperforming. Our policies for classifying loans as nonperforming, by loan category, are as follows: • Credit card loans: As permitted by regulatory guidance issued by the Federal Financial Institutions Examination Council (“FFIEC”), our policy is generally to exempt credit card loans from being classified as nonperforming, as these loans are generally charged off in the period the account becomes 180 days past due. Consistent with industry conventions, we generally continue to accrue interest and fees on delinquent credit card loans until the loans are charged off. • Consumer banking loans: We classify consumer banking loans as nonperforming when we determine that the collectability of all interest and principal on the loan is not reasonably assured, generally when the loan becomes 90 days past due. • Commercial banking loans : We classify commercial banking loans as nonperforming as of the date we determine that the collectability of all interest and principal on the loan is not reasonably assured. • Modified loans and troubled debt restructurings: Modified loans, including TDRs, that are current at the time of the restructuring remain on accrual status if there is demonstrated performance prior to the restructuring and continued performance under the modified terms is expected. Otherwise, the modified loan is classified as nonperforming. Interest and fees accrued but not collected at the date a loan is placed on nonaccrual status are reversed against earnings. In addition, the amortization of deferred loan fees, costs, premiums and discounts is suspended. Interest and fee income are subsequently recognized only upon the receipt of cash payments. However, if there is doubt regarding the ultimate collectability of loan principal, cash received is generally applied against the principal balance of the loan. Nonaccrual loans are generally returned to accrual status when all principal and interest is current and repayment of the remaining contractual principal and interest is reasonably assured, or when the loan is both well-secured and in the process of collection and collectability is no longer doubtful. Charge-Offs - Loans We charge off loans when we determine that the loan is uncollectible. The amortized cost basis, excluding accrued interest, is charged off as a reduction to the allowance for credit losses based on the time frames presented below. Accrued interest on loans other than credit card loans determined to be uncollectible is reversed as a reduction of interest income when the loan is classified as nonperforming. For credit card loans, accrued interest is charged off simultaneously with the charge off of other components of amortized cost and as a reduction of interest income. When received, recoveries of previously charged off amounts are recorded as an increase to the allowance for credit losses (see the “Allowance for Credit Losses - Loans Held for Investment” section of this Note for information on how we account for expected recoveries). Costs to recover charged off loans are recorded as collection expense and included in our consolidated statements of income as a component of other non-interest expense as incurred. Our charge-off time frames by loan type are presented below. • Credit card loans : We generally charge off credit card loans in the period the account becomes 180 days past due. We charge off delinquent credit card loans for which revolving privileges have been revoked as part of loan workout when the account becomes 120 days past due. Credit card loans in bankruptcy are generally charged off by the end of the month following 30 days after the receipt of a complete bankruptcy notification from the bankruptcy court. Credit card loans of deceased account holders are generally charged off 5 days after receipt of notification. • Consumer banking loans: We generally charge off consumer banking loans at the earlier of the date when the account is a specified number of days past due or upon repossession of the underlying collateral. Our charge-off period for auto loans is 120 days past due. Small business banking loans generally charge off at 120 days past due based on the date the amortized cost basis is deemed uncollectible. Auto loans that have not been previously charged off where the borrower has filed for bankruptcy and the loan has not been reaffirmed charge off in the period that the loan is 60 days from the bankruptcy notification date, regardless of delinquency status. Auto loans that have not been previously charged off and have been discharged under Chapter 7 bankruptcy are charged off at the end of the month in which the bankruptcy discharge occurs. Remaining consumer loans generally are charged off within 40 days of receipt of notification from the bankruptcy court. Consumer loans of deceased account holders are charged off by the end of the month following 60 days of receipt of notification. • Commercial banking loans: We charge off commercial loans in the period we determine that the amortized cost basis is uncollectible. Allowance for Credit Losses We maintain an allowance for credit losses (“allowance”) that represents management’s current estimate of expected credit losses over the contractual terms of our loans held for investment and investment securities classified as available for sale. We measure the allowance on a quarterly basis through consideration of past events, including historical experience, current conditions, and reasonable and supportable forecasts. Allowance for Credit Losses - Loans Held for Investment We measure current expected credit losses over the contractual terms of our loans. The contractual terms are adjusted for expected prepayments but are not extended for renewals or extensions, except when an extension or renewal arises from a borrower option that is not unconditionally cancellable or through a TDR that is reasonably expected to occur. We aggregate loans sharing similar risk characteristics into pools for purposes of measuring expected credit losses. Pools are reassessed periodically to confirm that all loans within each pool continue to share similar risk characteristics. Expected credit losses for loans that do not share similar risk characteristics with other financial assets are measured individually. Expected recoveries of amounts previously charged off or expected to be charged off are recognized within the allowance, with a corresponding reduction to our provision for credit losses. At times expected recoveries may result in a negative allowance. We limit the allowance to amounts previously charged off and expected to be charged off. Charge-offs of uncollectible amounts result in a reduction to the allowance and recoveries of previously charged off amounts result in an increase to the allowance. When developing an estimate of expected credit losses, we use both quantitative and qualitative methods in considering all available information relevant to assessing collectability. This may include internal information, external information, or a combination of both relating to past events, current conditions, and reasonable and supportable forecasts. Significant judgment is applied to the development and duration of reasonable and supportable forecasts used in our estimation of lifetime losses. We estimate expected credit losses over the duration of those forecasts and then revert, on a rational and systematic basis, to historical losses at each relevant loss component of the estimate. Expected losses for contractual terms extending beyond the reasonable and supportable forecast and reversion periods are based on those historical losses. Management will consider and may qualitatively adjust for conditions, changes, and trends in loan portfolios that may not be captured in modeled results. These adjustments are referred to as qualitative factors and represent management’s judgment of the imprecision and risks inherent in the processes and assumptions used in establishing the allowance for credit losses. Management’s judgment may involve an assessment of current and forward-looking conditions including but not limited to changes in lending policies and procedures, nature and volume of the portfolio, external factors, and uncertainty as it relates to economic, model or forecast risks, where not already captured in the modeled results. Expected credit losses for collateral-dependent loans are based on the fair value of the underlying collateral. When we intend to liquidate the collateral, the fair value of the collateral is adjusted for expected costs to sell. A loan is deemed to be a collateral-dependent loan when (i) we determine foreclosure or repossession of the underlying collateral is probable, or (ii) foreclosure or repossession is not probable, but the borrower is experiencing financial difficulty and we expect repayment to be provided substantially through the operation or sale of the collateral. The allowance for a collateral-dependent loan reflects the difference between the loan’s amortized cost basis and the fair value (less selling costs, where applicable) of the loan's underlying collateral. Our credit card and consumer banking loan portfolios consist of smaller-balance, homogeneous loans. The consumer banking loan portfolio is divided into two primary portfolio segments: auto loans and retail banking loans. The credit card and consumer banking loan portfolios are further divided by our business units into groups based on common risk characteristics, such as origination year, contract type, interest rate, credit bureau score and geography. The commercial banking loan portfolio is primarily composed of larger-balance, non-homogeneous loans. These loans are subject to reviews that result in internal risk ratings. In assessing the risk rating of a particular commercial banking loan, among the factors we consider are the financial condition of the borrower, geography, collateral performance, historical loss experience and industry-specific information that management believes is relevant in determining and measuring expected credit losses. Subjective assessment and interpretation are involved. Emphasizing one factor over another or considering additional factors could impact the risk rating assigned to that commercial banking loan. For consumer banking and commercial banking loans, the contractual period typically does not include renewals or extensions because the renewals and extensions are generally not at the borrower’s exclusive option to exercise. Management has determined that the undrawn credit exposure that is associated with our credit card loans is unconditionally cancellable. For this reason, expected credit losses are measured based on the drawn balance at each quarterly measurement date, but not on the undrawn exposure. Because credit card loans do not have a defined contractual life, management estimates both the volume and application of payments to determine a contractual life of the drawn balance at the measurement date over which expected credit losses are developed for credit card loans. With the exception of credit card loans, we have made a policy election to not measure an allowance on accrued interest for loans held for investment because we reverse uncollectible accrued interest in a timely manner. See the “Delinquent and Nonperforming Loans” and “Charge-Offs - Loans” sections of this Note for information on what we consider timely. For credit card loans, we do not make this election, as we reserve for uncollectible accrued interest relating to credit card loans in the allowance. The allowance related to credit card and consumer banking loans assessed on a pooled basis is based on a modeled calculation, which is supplemented by management judgment as described above. Because of the homogeneous nature of our consumer loan portfolios, the allowance is based on the aggregated portfolio segment evaluations. The allowance is established through a process that begins with estimates of historical losses in each pool based upon various statistical analyses, with adjustments for current conditions and reasonable and supportable forecasts of conditions, which includes expected economic conditions. Loss forecast models are utilized to estimate expected credit losses and consider several portfolio indicators including, but not limited to, expected economic conditions, historical loss experience, account seasoning, the value of collateral underlying secured loans, estimated foreclosures or defaults based on observable trends, delinquencies, bankruptcy filings, unemployment, credit bureau scores and general business trends. Management believes these factors are relevant in estimating expected credit losses and also considers an evaluation of overall portfolio credit quality based on indicators such as changes in our credit evaluation, underwriting and collection management policies, the effect of other external factors such as competition and legal and regulatory requirements, general economic conditions and business trends, and uncertainties in forecasting and modeling techniques used in estimating our allowance. The allowance related to commercial banking loans assessed on a pooled basis is based on our historical loss experience for loans with similar risk characteristics and consideration of the current credit quality of the portfolio, which is supplemented by management judgment as described above. These are adjusted for current conditions, and reasonable and supportable forecasts of conditions likely to cause future losses which vary from historical levels. We apply internal risk ratings to commercial banking loans, which we use to assess credit quality and derive a total loss estimate based on an estimated probability of default (“default rate”) and loss given default (“loss severity”). Management may also apply judgment to adjust the loss factors derived, taking into consideration both quantitative and qualitative factors, including general economic conditions, industry-specific and geographic trends, portfolio concentrations, trends in internal credit quality indicators, and current and past underwriting standards that have occurred but are not yet reflected in the historical data underlying our loss estimates. The allowance related to smaller-balance homogeneous credit card and consumer banking loans whose terms have been modified in a TDR is calculated on a pool basis using historical loss experience, adjusted for current conditions and reasonable and supportable forecasts of conditions likely to cause future losses which vary from historical levels for the respective class of assets. The allowance related to consumer banking loans that are assessed at a loan-level is determined based on key considerations that include the borrower’s overall financial condition, resources and payment history, prospects for support from financially responsible guarantors, and when applicable, the estimated realizable value of any collateral. The allowance related to commercial banking loans that are assessed at a loan-level is generally determined in accordance with our policy for estimating expected credit losses for collateral-dependent loans as described above. Off-balance sheet credit exposures In addition to the allowance, we also measure expected credit losses related to unfunded lending commitments that are not unconditionally cancellable in our Commercial Banking business. This reserve is measured using the same measurement objectives as the allowance for loans held for investment and is recorded within other liabilities on our co

Investment Securities

Investment Securities	6 Months Ended
	Jun. 30, 2020
Investments, Debt and Equity Securities [Abstract]
Investment Securities	NOTE 2—INVESTMENT SECURITIES Our investment securities portfolio consists of the following: U.S. Treasury securities, U.S. government-sponsored enterprise or agency (“Agency”) and non-agency residential mortgage-backed securities (“RMBS”), Agency commercial mortgage-backed securities (“CMBS”), and other securities. Agency securities include Government National Mortgage Association (“Ginnie Mae”) guaranteed securities, Federal National Mortgage Association (“Fannie Mae”) and Federal Home Loan Mortgage Corporation (“Freddie Mac”) issued securities. The carrying value of our investments in U.S. Treasury and Agency securities represented 97% and 96% of our total investment securities portfolio as of June 30, 2020 and December 31, 2019 , respectively. In the first quarter of 2020, we adopted the CECL standard. For purchased credit-deteriorated (“PCD”) securities, this resulted in an increase of their amortized cost basis and related allowance for credit losses. However, the allowance for credit losses for PCD securities is limited to the amount by which the amortized cost basis of the PCD security exceeds its fair value. This limitation resulted in an increase of $11 million to our retained earnings with a corresponding decrease in AOCI at adoption. We exclude accrued interest receivable from the amortized cost disclosed in this note. Our disclosures below reflect these adoption changes. Prior period presentation was not reclassified to conform to the current period presentation. See “ Note 1—Summary of Significant Accounting Policies ” for additional information. The table below presents the amortized cost, gross unrealized gains and losses, and fair value of securities available for sale as of June 30, 2020 and December 31, 2019 . Accrued interest receivable of $233 million as of June 30, 2020 is not included in the below table. Table 2.1 : Investment Securities Available for Sale June 30, 2020 (Dollars in millions) Amortized Cost Allowance for Credit Losses Gross Unrealized Gains Gross Unrealized Losses Fair Value Investment securities available for sale: U.S. Treasury securities $ 4,353 $ 0 $ 12 $ (3 ) $ 4,362 RMBS: Agency 68,223 0 2,541 (77 ) 70,687 Non-agency 1,144 (3 ) 187 (1 ) 1,327 Total RMBS 69,367 (3 ) 2,728 (78 ) 72,014 Agency CMBS 9,940 0 469 (9 ) 10,400 Other securities (1) 1,082 0 2 (1 ) 1,083 Total investment securities available for sale $ 84,742 $ (3 ) $ 3,211 $ (91 ) $ 87,859 December 31, 2019 (Dollars in millions) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Investment securities available for sale: U.S. Treasury securities $ 4,122 $ 6 $ (4 ) $ 4,124 RMBS: Agency 62,003 1,120 (284 ) 62,839 Non-agency 1,235 266 (2 ) 1,499 Total RMBS 63,238 1,386 (286 ) 64,338 Agency CMBS 9,303 165 (42 ) 9,426 Other securities (1) 1,321 4 0 1,325 Total investment securities available for sale $ 77,984 $ 1,561 $ (332 ) $ 79,213 __________ (1) Includes primarily supranational bonds, foreign government bonds and other asset-backed securities. Investment Securities in a Gross Unrealized Loss Position The table below provides the gross unrealized losses and fair value of our securities available for sale aggregated by major security type and the length of time that individual securities have been in a continuous unrealized loss position as of June 30, 2020 and December 31, 2019 . The amounts as of June 30, 2020 only include securities available for sale without an allowance for credit losses. Table 2.2 : Securities in a Gross Unrealized Loss Position June 30, 2020 Less than 12 Months 12 Months or Longer Total (Dollars in millions) Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Investment securities available for sale without an allowance for credit losses: U.S. Treasury securities $ 2,812 $ (3 ) $ 0 $ 0 $ 2,812 $ (3 ) RMBS: Agency 2,732 (30 ) 3,210 (47 ) 5,942 (77 ) Non-agency 14 0 2 0 16 0 Total RMBS 2,746 (30 ) 3,212 (47 ) 5,958 (77 ) Agency CMBS 644 (3 ) 724 (6 ) 1,368 (9 ) Other securities (1) 677 (1 ) 5 0 682 (1 ) Total investment securities available for sale in a gross unrealized loss position without an allowance for credit losses (2) $ 6,879 $ (37 ) $ 3,941 $ (53 ) $ 10,820 $ (90 ) December 31, 2019 Less than 12 Months 12 Months or Longer Total (Dollars in millions) Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Investment securities available for sale: U.S. Treasury securities $ 2,647 $ (4 ) $ 0 $ 0 $ 2,647 $ (4 ) RMBS: Agency 10,494 (92 ) 10,567 (192 ) 21,061 (284 ) Non-agency 35 (1 ) 16 (1 ) 51 (2 ) Total RMBS 10,529 (93 ) 10,583 (193 ) 21,112 (286 ) Agency CMBS 2,580 (23 ) 1,563 (19 ) 4,143 (42 ) Other securities (1) 126 0 106 0 232 0 Total investment securities available for sale in a gross unrealized loss position $ 15,882 $ (120 ) $ 12,252 $ (212 ) $ 28,134 $ (332 ) __________ (1) Includes primarily supranational bonds,foreign government bonds, and other asset-backed securities. (2) Consists of approximately 350 securities in gross unrealized loss positions as of June 30, 2020 . Maturities and Yields of Investment Securities The table below summarizes, by major security type, the contractual maturities and weighted-average yields of our investment securities as of June 30, 2020 . Because borrowers may have the right to call or prepay certain obligations, the expected maturities of our securities are likely to differ from the scheduled contractual maturities presented below. The weighted-average yield below represents the effective yield for the investment securities and is calculated based on the amortized cost of each security. Table 2.3 : Contractual Maturities and Weighted-Average Yields of Securities June 30, 2020 (Dollars in millions) Due in 1 Year or Less Due > 1 Year through 5 Years Due > 5 Years through 10 Years Due > 10 Years Total Fair value of securities available for sale: U.S. Treasury securities $ 0 $ 4,362 $ 0 $ 0 $ 4,362 RMBS (1) : Agency 0 82 963 69,642 70,687 Non-agency 0 0 0 1,327 1,327 Total RMBS 0 82 963 70,969 72,014 Agency CMBS (1) 6 2,550 4,262 3,582 10,400 Other securities 265 534 284 0 1,083 Total securities available for sale $ 271 $ 7,528 $ 5,509 $ 74,551 $ 87,859 Amortized cost of securities available for sale $ 270 $ 7,486 $ 5,271 $ 71,715 $ 84,742 Weighted-average yield for securities available for sale 1.15 % 1.52 % 2.38 % 2.61 % 2.49 % __________ (1) As of June 30, 2020 , the weighted-average expected maturities of RMBS and Agency CMBS are 3.6 years and 5.0 years, respectively. Net Securities Gains or Losses and Process from Sales We had no sales of securities for the three months ended June 30, 2020. For the six months ended June 30, 2020, total proceeds from the sale of our securities were $144 million and we recognized less than $1 million of gains. For the three and six months ended June 30, 2019, total proceeds from sale of our securities were $909 million and $4.0 billion , with gains of $15 million and $39 million , respectively. Securities Pledged and Received We pledged investment securities totaling $12.6 billion and $14.0 billion as of June 30, 2020 and December 31, 2019 , respectively. These securities are primarily pledged to secure Federal Home Loan Banks (“FHLB”) advances and Public Funds deposits, as well as for other purposes as required or permitted by law. We accepted pledges of securities with a fair value of approximately $1 million as of both June 30, 2020 and December 31, 2019 , related to our derivative transactions.

Loans

Loans	6 Months Ended
	Jun. 30, 2020
Receivables [Abstract]
Loans	NOTE 3—LOANS Our loan portfolio consists of loans held for investment, including loans held in our consolidated trusts, and loans held for sale. We further divide our loans held for investment into three portfolio segments: credit card, consumer banking and commercial banking. Credit card loans consist of domestic and international credit card loans. Consumer banking loans consist of auto and retail banking loans. Commercial banking loans consist of commercial and multifamily real estate as well as commercial and industrial loans. The information presented in this section excludes loans held for sale, which are carried at either fair value (if we elect the fair value option) or at the lower of cost or fair value. In the first quarter of 2020, we adopted the CECL standard. Accordingly, our disclosures below reflect these adoption changes. Prior period presentation was not modified to conform to the current period presentation. See “ Note 1—Summary of Significant Accounting Policies ” for additional information. Amounts as of June 30, 2020 , include the impacts of COVID-19 customer assistance programs where applicable. Accrued interest receivable of $1.3 billion as of June 30, 2020 is not included in the tables in this note. The table below presents the composition and aging analysis of our loans held for investment portfolio as of June 30, 2020 and December 31, 2019 . The delinquency aging includes all past due loans, both performing and nonperforming. Table 3.1 : Loan Portfolio Composition and Aging Analysis June 30, 2020 Delinquent Loans (Dollars in millions) Current 30-59 Days 60-89 Days > 90 Days Total Delinquent Loans Total Loans Credit Card: Domestic credit card $ 96,666 $ 668 $ 554 $ 1,502 $ 2,724 $ 99,390 International card businesses 7,689 76 54 101 231 7,920 Total credit card 104,355 744 608 1,603 2,955 107,310 Consumer Banking: Auto 61,043 1,517 582 177 2,276 63,319 Retail banking 3,346 20 11 16 47 3,393 Total consumer banking 64,389 1,537 593 193 2,323 66,712 Commercial Banking: Commercial and multifamily real estate 30,667 137 118 31 286 30,953 Commercial and industrial 46,311 114 23 89 226 46,537 Total commercial banking 76,978 251 141 120 512 77,490 Total loans (1) $ 245,722 $ 2,532 $ 1,342 $ 1,916 $ 5,790 $ 251,512 % of Total loans 97.7 % 1.0 % 0.5 % 0.8 % 2.3 % 100.0 % December 31, 2019 Delinquent Loans (Dollars in millions) Current 30-59 Days 60-89 Days > 90 Days Total Delinquent Loans PCI Loans Total Loans Credit Card: Domestic credit card $ 113,857 $ 1,341 $ 1,038 $ 2,277 $ 4,656 $ 93 $ 118,606 International card businesses 9,277 133 84 136 353 0 9,630 Total credit card 123,134 1,474 1,122 2,413 5,009 93 128,236 Consumer Banking: Auto 55,778 2,828 1,361 395 4,584 0 60,362 Retail banking 2,658 24 8 11 43 2 2,703 Total consumer banking 58,436 2,852 1,369 406 4,627 2 63,065 Commercial Banking: Commercial and multifamily real estate 30,157 43 20 4 67 21 30,245 Commercial and industrial 44,009 75 26 143 244 10 44,263 Total commercial banking 74,166 118 46 147 311 31 74,508 Total loans (1) $ 255,736 $ 4,444 $ 2,537 $ 2,966 $ 9,947 $ 126 $ 265,809 % of Total loans 96.2 % 1.6 % 1.0 % 1.1 % 3.7 % 0.1 % 100.0 % __________ (1) Loans include unamortized premiums and discounts, and unamortized deferred fees and costs totaling $1.1 billion as of both June 30, 2020 and December 31, 2019 The following table presents our loans held for investment that are 90 days or more past due that continue to accrue interest and loans that are classified as nonperforming as of June 30, 2020 and December 31, 2019 . We also present nonperforming loans without an allowance as of June 30, 2020 . Nonperforming loans generally include loans that have been placed on nonaccrual status. Table 3.2 : 90+ Day Delinquent Loans Accruing Interest and Nonperforming Loans June 30, 2020 December 31, 2019 (Dollars in millions) > 90 Days and Accruing Nonperforming Loans (1) Nonperforming Loans Without an Allowance > 90 Days and Accruing Nonperforming Loans Credit Card: Domestic credit card $ 1,502 N/A $ 0 $ 2,277 N/A International card businesses 94 $ 23 0 130 $ 25 Total credit card 1,596 23 0 2,407 25 Consumer Banking: Auto 0 260 0 0 487 Retail banking 0 24 2 0 23 Total consumer banking 0 284 2 0 510 Commercial Banking: Commercial and multifamily real estate 14 167 162 0 38 Commercial and industrial 0 493 160 0 410 Total commercial banking 14 660 322 0 448 Total $ 1,610 $ 967 $ 324 $ 2,407 $ 983 % of Total loans held for investment 0.6 % 0.4 % 0.1 % 0.9 % 0.4 % __________ (1) We recognized interest income for loans classified as nonperforming of $5 million and $11 million for the three and six months ended June 30, 2020 , respectively. Credit Quality Indicators We closely monitor economic conditions and loan performance trends to assess and manage our exposure to credit risk. We discuss these risks and our credit quality indicator for each portfolio segment below. Credit Card Our credit card loan portfolio is highly diversified across millions of accounts and numerous geographies without significant individual exposure. We therefore generally manage credit risk based on portfolios with common risk characteristics. The risk in our credit card loan portfolio correlates to broad economic trends, such as unemployment rates and home values, as well as consumers’ financial condition, all of which can have a material effect on credit performance. The key indicator we assess in monitoring the credit quality and risk of our credit card loan portfolio is delinquency trends, including an analysis of loan migration between delinquency categories over time. The table below presents our credit card portfolio by delinquency status as of June 30, 2020 . Table 3.3 : Credit Card Delinquency Status June 30, 2020 (Dollars in millions) Revolving Loans Revolving Loans Converted to Term Total Credit Card: Domestic credit card: Current $ 96,000 $ 666 $ 96,666 30-59 days 637 31 668 60-89 days 532 22 554 Greater than 90 days 1,475 27 1,502 Total domestic credit card 98,644 746 99,390 International card businesses: Current 7,625 64 7,689 30-59 days 66 10 76 60-89 days 43 11 54 Greater than 90 days 87 14 101 Total international card businesses 7,821 99 7,920 Total credit card $ 106,465 $ 845 $ 107,310 Consumer Banking Our consumer banking loan portfolio consists of auto and retail banking loans. Similar to our credit card loan portfolio, the risk in our consumer banking loan portfolio correlates to broad economic trends, such as unemployment rates, gross domestic product and home values, as well as consumers’ financial condition, all of which can have a material effect on credit performance. The key indicator we monitor when assessing the credit quality and risk of our auto loan portfolio is borrower credit scores as they measure the creditworthiness of borrowers. Delinquency trends are the key indicator we assess in monitoring the credit quality and risk of our retail banking loan portfolio. The table below presents our consumer banking portfolio of loans held for investment by credit quality indicator as of June 30, 2020 and December 31, 2019 . We present our auto loan portfolio by FICO scores at origination and our retail banking loan portfolio by delinquency status, which includes all past due loans, both performing and nonperforming. Table 3.4 : Consumer Banking Portfolio by Credit Quality Indicator June 30, 2020 Term Loans by Vintage Year (Dollars in millions) 2020 2019 2018 2017 2016 Prior Total Term Loans Revolving Loans Revolving Loans Converted to Term Total December 31, 2019 Auto — At origination FICO scores: (1) Greater than 660 $ 6,968 $ 10,018 $ 6,099 $ 3,931 $ 1,879 $ 519 $ 29,414 $ 0 $ 0 $ 29,414 $ 28,773 621-660 3,028 4,436 2,549 1,569 721 233 12,536 0 0 12,536 11,924 620 or below 5,310 7,550 4,149 2,612 1,272 476 21,369 0 0 21,369 19,665 Total auto 15,306 22,004 12,797 8,112 3,872 1,228 63,319 0 0 63,319 60,362 Retail banking—Delinquency status: Current 1,032 237 236 243 202 619 2,569 768 9 3,346 2,658 30-59 days 0 0 0 1 0 4 5 15 0 20 24 60-89 days 0 0 5 1 0 1 7 4 0 11 8 Greater than 90 days 0 0 0 3 2 3 8 8 0 16 11 Total retail banking (2) 1,032 237 241 248 204 627 2,589 795 9 3,393 2,701 Total consumer banking $ 16,338 $ 22,241 $ 13,038 $ 8,360 $ 4,076 $ 1,855 $ 65,908 $ 795 $ 9 $ 66,712 $ 63,063 __________ (1) Amounts represent period-end loans held for investment in each credit score category. Auto credit scores generally represent average FICO scores obtained from three credit bureaus at the time of application and are not refreshed thereafter. Balances for which no credit score is available or the credit score is invalid are included in the 620 or below category. (2) Includes the Paycheck Protection Program (“PPP”) loans of $931 million as of June 30, 2020. Commercial Banking The key credit quality indicator for our commercial loan portfolios is our internal risk ratings. We assign internal risk ratings to loans based on relevant information about the ability of the borrowers to repay their debt. In determining the risk rating of a particular loan, some of the factors considered are the borrower’s current financial condition, historical and projected future credit performance, prospects for support from financially responsible guarantors, the estimated realizable value of any collateral and current economic trends. The scale based on our internal risk rating system is as follows: • Noncriticized: Loans that have not been designated as criticized, frequently referred to as “pass” loans. • Criticized performing: Loans in which the financial condition of the obligor is stressed, affecting earnings, cash flows or collateral values. The borrower currently has adequate capacity to meet near-term obligations; however, the stress, left unabated, may result in deterioration of the repayment prospects at some future date. • Criticized nonperforming: Loans that are not adequately protected by the current net worth and paying capacity of the obligor or the collateral pledged, if any. Loans classified as criticized nonperforming have a well-defined weakness, or weaknesses, which jeopardize the full repayment of the debt. These loans are characterized by the distinct possibility that we will sustain a credit loss if the deficiencies are not corrected and are generally placed on nonaccrual status. We use our internal risk rating system for regulatory reporting, determining the frequency of credit exposure reviews, and evaluating and determining the allowance for credit losses for commercial loans. Generally, loans that are designated as criticized performing and criticized nonperforming are reviewed quarterly by management to determine if they are appropriately classified/rated and whether any impairment exists. Noncriticized loans are also generally reviewed, at least annually, to determine the appropriate risk rating. In addition, we evaluate the risk rating during the renewal process of any loan or if a loan becomes past due. The following table presents our commercial banking portfolio of loans held for investment by internal risk ratings as of June 30, 2020 and December 31, 2019 . The internal risk rating status includes all past due loans, both performing and nonperforming. Table 3.5 : Commercial Banking Portfolio by Internal Risk Ratings June 30, 2020 Term Loans by Vintage Year (Dollars in millions) 2020 2019 2018 2017 2016 Prior Total Term Loans Revolving Loans Revolving Loans Converted to Term Total Internal risk rating: (1) Commercial and multifamily real estate Noncriticized $ 2,466 $ 5,490 $ 3,587 $ 2,000 $ 2,217 $ 6,635 $ 22,395 $ 6,878 $ 0 $ 29,273 Criticized performing 69 163 343 211 216 456 1,458 55 0 1,513 Criticized nonperforming 0 11 30 0 4 122 167 0 0 167 Total commercial and multifamily real estate 2,535 5,664 3,960 2,211 2,437 7,213 24,020 6,933 0 30,953 Commercial and industrial Noncriticized 4,879 10,234 4,758 3,078 1,998 3,814 28,761 12,774 73 41,608 Criticized performing 169 668 524 371 114 202 2,048 2,388 0 4,436 Criticized nonperforming 32 76 60 60 8 0 236 257 0 493 Total commercial and industrial 5,080 10,978 5,342 3,509 2,120 4,016 31,045 15,419 73 46,537 Total commercial banking (2) $ 7,615 $ 16,642 $ 9,302 $ 5,720 $ 4,557 $ 11,229 $ 55,065 $ 22,352 $ 73 $ 77,490 December 31, 2019 (Dollars in millions) Commercial and Multifamily Real Estate % of Total Commercial and Industrial % of Total Total Commercial Banking % of Total Internal risk rating: (1) Noncriticized $ 29,625 97.9 % $ 42,223 95.4 % $ 71,848 96.5 % Criticized performing 561 1.9 1,620 3.7 2,181 2.9 Criticized nonperforming 38 0.1 410 0.9 448 0.6 PCI loans 21 0.1 10 0.0 31 0.0 Total $ 30,245 100.0 % $ 44,263 100.0 % $ 74,508 100.0 % __________ (1) Criticized exposures correspond to the “Special Mention,” “Substandard” and “Doubtful” asset categories defined by bank regulatory authorities. (2) Includes PPP loans of $231 million as of June 30, 2020. Revolving Loans Converted to Term Loans For the three and six months ended June 30, 2020 , we converted $89 million and $249 million of revolving loans to term loans, respectively, primarily in our domestic credit card loan portfolio. Troubled Debt Restructurings In response to the COVID-19 pandemic, the Federal Banking Agencies issued an interagency statement that provides banking organizations with additional guidance and relief on accounting for certain customer concessions related to COVID-19. Specifically, TDR accounting relief is available for short-term COVID-19-related modifications of loans that were not more than 30 days past due where concessions do not extend beyond six months. We assessed all loan modifications introduced to borrowers as of June 30, 2020 in response to COVID-19 and followed guidance that such eligible loan modifications made on a temporary and good faith basis in response to COVID-19 are not considered TDRs. Total recorded TDRs were $1.8 billion and $1.7 billion as of June 30, 2020 and December 31, 2019 , respectively. TDRs classified as performing in our credit card and consumer banking loan portfolios totaled $1.2 billion and $1.1 billion as of June 30, 2020 and December 31, 2019 , respectively. TDRs classified as performing in our commercial banking loan portfolio totaled $349 million and $224 million as of June 30, 2020 and December 31, 2019 , respectively. Commitments to lend additional funds on loans modified in TDRs totaled $145 million and $178 million as of June 30, 2020 and December 31, 2019 , respectively. Loans Modified in TDRs As part of our loan modification programs to borrowers experiencing financial difficulty, we may provide multiple concessions to minimize our economic loss and improve long-term loan performance and collectability. The following tables present the major modification types, recorded investment amounts and financial effects of loans modified in TDRs during the three and six months ended June 30, 2020 and 2019 . Table 3.6 : Troubled Debt Restructurings Total Loans Modified (1) Three Months Ended June 30, 2020 Reduced Interest Rate Term Extension Balance Reduction (Dollars in millions) % of TDR Activity (2) Average Rate Reduction % of TDR Activity (2) Average Term Extension (Months) % of TDR Activity (2) Gross Balance Reduction Credit Card: Domestic credit card $ 56 100 % 15.41 % 0 % 0 0 % $ 0 International card businesses 28 100 26.56 0 0 0 0 Total credit card 84 100 19.14 0 0 0 0 Consumer Banking: Auto 137 5 4.12 95 3 0 0 Retail banking 1 10 8.37 59 4 0 0 Total consumer banking 138 5 4.19 95 3 0 0 Commercial Banking: Commercial and multifamily real estate 9 0 0.00 100 7 0 0 Commercial and industrial 181 0 0.00 52 8 9 7 Total commercial banking 190 0 0.00 55 8 8 7 Total $ 412 22 17.96 57 5 4 $ 7 Total Loans Modified (1) Six Months Ended June 30, 2020 Reduced Interest Rate Term Extension Balance Reduction (Dollars in millions) % of TDR Activity (2) Average Rate Reduction % of TDR Activity (2) Average Term Extension (Months) % of TDR Activity (2) Gross Balance Reduction Credit Card: Domestic credit card $ 145 100 % 16.05 % 0 % 0 0 % $ 0 International card businesses 79 100 27.05 0 0 0 0 Total credit card 224 100 19.94 0 0 0 0 Consumer Banking: Auto 260 12 3.51 95 4 0 0 Retail banking 4 4 11.42 15 4 0 0 Total consumer banking 264 12 3.55 93 4 0 0 Commercial Banking: Commercial and multifamily real estate 28 0 0.00 100 10 0 0 Commercial and industrial 188 0 0.00 50 8 8 7 Total commercial banking 216 0 0.00 57 9 7 7 Total $ 704 36 17.90 52 5 2 $ 7 Total Loans Modified (1) Three Months Ended June 30, 2019 Reduced Interest Rate Term Extension (Dollars in millions) % of TDR Activity (2) Average Rate Reduction % of TDR Activity (2) Average Term Extension (Months) Credit Card: Domestic credit card $ 74 100 % 16.60 % 0 % 0 International card businesses 40 100 27.25 0 0 Total credit card 114 100 20.32 0 0 Consumer Banking: Auto 52 46 3.78 89 8 Retail banking 5 9 10.55 57 3 Total consumer banking 57 42 3.93 86 8 Commercial Banking: Commercial and industrial 14 0 0.00 100 3 Total commercial lending 14 0 0.00 100 3 Small-ticket commercial real estate 1 0 0.00 0 0 Total commercial banking 15 0 0.00 98 3 Total $ 186 75 17.45 34 7 Total Loans Modified (1) Six Months Ended June 30, 2019 Reduced Interest Rate Term Extension (Dollars in millions) % of TDR Activity (2) Average Rate Reduction % of TDR Activity (2) Average Term Extension (Months) Credit Card: Domestic credit card $ 172 100 % 16.50 % 0 % 0 International card businesses 87 100 27.44 0 0 Total credit card 259 100 20.17 0 0 Consumer Banking: Auto 124 41 3.81 90 7 Retail banking 6 10 10.91 61 3 Total consumer banking 130 39 3.90 89 7 Commercial Banking: Commercial and multifamily real estate 34 100 0.00 0 0 Commercial and industrial 35 0 0.00 40 1 Total commercial lending 69 49 0.00 20 1 Small-ticket commercial real estate 1 0 0.00 0 0 Total commercial banking 70 49 0.00 20 0 Total $ 459 75 15.78 28 6 __________ (1) Represents the recorded investment of total loans modified in TDRs at the end of the quarter in which they were modified. As not every modification type is included in the table above, the total percentage of TDR activity may not add up to 100%. Some loans may receive more than one type of concession as part of the modification. (2) Due to multiple concessions granted to some troubled borrowers, percentages may total more than 100% for certain loan types. Subsequent Defaults of Completed TDR Modifications The following table presents the type, number and recorded investment of loans modified in TDRs that experienced a default during the period and had completed a modification event in the twelve months prior to the default. A default occurs if the loan is either 90 days or more delinquent, has been charged off as of the end of the period presented or has been reclassified from accrual to nonaccrual status. Table 3.7 : TDRs—Subsequent Defaults Three Months Ended June 30, Six Months Ended June 30, 2020 2019 2020 2019 (Dollars in millions) Number of Contracts Amount Number of Contracts Amount Number of Contracts Amount Number of Contracts Amount Credit Card: Domestic credit card 9,582 $ 21 11,581 $ 26 20,468 $ 43 25,608 $ 55 International card businesses 17,508 25 18,185 28 35,365 51 34,891 56 Total credit card 27,090 46 29,766 54 55,833 94 60,499 111 Consumer Banking: Auto 860 11 1,312 16 2,135 27 2,417 29 Retail banking 3 0 4 1 4 0 12 1 Total consumer banking 863 11 1,316 17 2,139 27 2,429 30 Commercial Banking: Commercial and industrial 1 21 0 0 7 49 0 0 Total commercial banking 1 21 0 0 7 49 0 0 Total 27,954 $ 78 31,082 $ 71 57,979 $ 170 62,928 $ 141 Loans Pledged We pledged loan collateral of $15.7 billion and $14.6 billion to secure the majority of our FHLB borrowing capacity of $17.9 billion and $18.7 billion as of June 30, 2020 and December 31, 2019 , respectively. We also pledged loan collateral of $28.2 billion and $6.7 billion to secure our Federal Reserve Discount Window borrowing capacity of $22.2 billion and $5.3 billion as of June 30, 2020 and December 31, 2019 , respectively. In addition to loans pledged, we securitized a portion of our credit card and auto loans. See “ Note 5—Variable Interest Entities and Securitizations ” for additional information.

Allowance for Credit Losses and

Allowance for Credit Losses and Reserve for Unfunded Lending Commitments	6 Months Ended
	Jun. 30, 2020
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Allowance for Credit Losses	NOTE 4—ALLOWANCE FOR CREDIT LOSSES AND RESERVE FOR UNFUNDED LENDING COMMITMENTS In the first quarter of 2020, we adopted the CECL standard . Concurrent with our adoption of the CECL standard in the first quarter of 2020, we reclassified our finance charge and fee reserve to our allowance for credit losses, with a corresponding increase to credit card loans held for investment. Accordingly, our disclosures below reflect these adoption changes. Prior period presentation was not modified to conform to the current period presentation. See “Note 1—Summary of Significant Accounting Policies” for additional information. Our allowance for credit losses represents management’s current estimate of expected credit losses over the contractual terms of our loans held for investment as of each balance sheet date. Expected recoveries of amounts previously charged off or expected to be charged off are recognized within the allowance. When developing an estimate of expected credit losses, we use both quantitative and qualitative methods in considering all available information relevant to assessing collectability. This may include internal information, external information, or a combination of both relating to past events, current conditions, and reasonable and supportable forecasts. Management will consider and may qualitatively adjust for conditions, changes, and trends in loan portfolios that may not be captured in modeled results. These adjustments are referred to as qualitative factors and represent management’s judgment of the imprecision and risks inherent in the processes and assumptions used in establishing the allowance for credit losses. Significant judgment is applied in our estimation of lifetime credit losses. We have unfunded lending commitments in our Commercial Banking business that are not unconditionally cancellable by us and for which we estimate expected credit losses in establishing a reserve. This reserve is measured using the same measurement objectives as the allowance for loans held for investment. We build or release the reserve for unfunded lending commitments through the provision for credit losses in our consolidated statements of income and the related reserve for unfunded lending commitments is included in other liabilities on our consolidated balance sheets. Allowance for Credit Losses and Reserve for Unfunded Lending Commitments Activity The table below summarizes changes in the allowance for credit losses and reserve for unfunded lending commitments by portfolio segment for the three and six months ended June 30, 2020 and 2019 . The allowance balance as of June 30, 2020 reflects the cumulative effects from adoption of the CECL standard and the change to include finance charge and fee reserve in the allowance for credit losses. The reserve for unfunded lending commitments balance as of June 30, 2020 also reflects the cumulative effects from adoption of the CECL standard, including the component of loss sharing agreements with the GSEs on multifamily commercial real estate loans that are within the scope of the CECL standard. When developing an estimate of expected credit losses, we use both quantitative and qualitative methods in considering all available information relevant to assessing collectability. Management will consider and may make adjustments for qualitative factors, which represent management’s judgment of the imprecision and risks inherent in the processes and assumptions used in establishing the allowance for credit losses. Our allowance for credit losses increased by $9.6 billion to $16.8 billion as of June 30, 2020 from December 31, 2019 , primarily driven by the allowance build from expectations of economic worsening and uncertainty as a result of the COVID-19 pandemic as well as the adoption of the CECL standard. Table 4.1 : Allowance for Credit Losses and Reserve for Unfunded Lending Commitments Activity Three Months Ended June 30, 2020 (Dollars in millions) Credit Card Consumer Banking Commercial Banking Total Allowance for credit losses: Balance as of March 31, 2020 $ 10,346 $ 2,154 $ 1,573 $ 14,073 Charge-offs (1,612 ) (416 ) (103 ) (2,131 ) Recoveries (1) 401 224 1 626 Net charge-offs (1,211 ) (192 ) (102 ) (1,505 ) Provision for credit losses 2,944 876 432 4,252 Allowance build for credit losses 1,733 684 330 2,747 Other changes (2) 12 0 0 12 Balance as of June 30, 2020 12,091 2,838 1,903 16,832 Reserve for unfunded lending commitments: Balance as of March 31, 2020 0 0 223 223 Benefit for losses on unfunded lending commitments 0 0 (5 ) (5 ) Balance as of June 30, 2020 0 0 218 218 Combined allowance and reserve as of June 30, 2020 $ 12,091 $ 2,838 $ 2,121 $ 17,050 Six Months Ended June 30, 2020 (Dollars in millions) Credit Card Consumer Banking Commercial Banking Total Allowance for credit losses: Balance as of December 31, 2019 $ 5,395 $ 1,038 $ 775 $ 7,208 Cumulative effects from adoption of the CECL standard 2,241 502 102 2,845 Finance charge and fee reserve reclassification (3) 462 0 0 462 Balance as of January 1, 2020 8,098 1,540 877 10,515 Charge-offs (3,461 ) (912 ) (215 ) (4,588 ) Recoveries (1) 814 474 4 1,292 Net charge-offs (2,647 ) (438 ) (211 ) (3,296 ) Provision for credit losses 6,646 1,736 1,237 9,619 Allowance build for credit losses 3,999 1,298 1,026 6,323 Other changes (2) (6 ) 0 0 (6 ) Balance as of June 30, 2020 12,091 2,838 1,903 16,832 Reserve for unfunded lending commitments: Balance as of December 31, 2019 0 5 130 135 Cumulative effects from adoption of the CECL standard 0 (5 ) 42 37 Balance as of January 1, 2020 0 0 172 172 Provision for losses on unfunded lending commitments 0 0 46 46 Balance as of June 30, 2020 0 0 218 218 Combined allowance and reserve as of June 30, 2020 $ 12,091 $ 2,838 $ 2,121 $ 17,050 Three Months Ended June 30, 2019 (Dollars in millions) Credit Card Consumer Banking Commercial Banking Total Allowance for loan and lease losses: Balance as of March 31, 2019 $ 5,568 $ 1,062 $ 683 $ 7,313 Charge-offs (1,711 ) (423 ) (23 ) (2,157 ) Recoveries (1) 391 251 7 649 Net charge-offs (1,320 ) (172 ) (16 ) (1,508 ) Provision for loan and lease losses 1,095 165 69 1,329 Allowance build (release) for loan and lease losses (225 ) (7 ) 53 (179 ) Other changes (2) (1 ) 0 0 (1 ) Balance as of June 30, 2019 5,342 1,055 736 7,133 Reserve for unfunded lending commitments: Balance as of March 31, 2019 0 4 127 131 Provision for losses on unfunded lending commitments 0 0 13 13 Balance as of June 30, 2019 0 4 140 144 Combined allowance and reserve as of June 30, 2019 $ 5,342 $ 1,059 $ 876 $ 7,277 Six Months Ended June 30, 2019 (Dollars in millions) Credit Card Consumer Banking Commercial Banking Total Allowance for loan and lease losses: Balance as of December 31, 2018 $ 5,535 $ 1,048 $ 637 $ 7,220 Charge-offs (3,493 ) (894 ) (43 ) (4,430 ) Recoveries (1) 809 501 13 1,323 Net charge-offs (2,684 ) (393 ) (30 ) (3,107 ) Provision for loan and lease losses 2,484 400 129 3,013 Allowance build (release) for loan and lease losses (200 ) 7 99 (94 ) Other changes (2) 7 0 0 7 Balance as of June 30, 2019 5,342 1,055 736 7,133 Reserve for unfunded lending commitments: Balance as of December 31, 2018 0 4 118 122 Provision for losses on unfunded lending commitments 0 0 22 22 Balance as of June 30, 2019 0 4 140 144 Combined allowance and reserve as of June 30, 2019 $ 5,342 $ 1,059 $ 876 $ 7,277 ________ (1) The amount and timing of recoveries is impacted by our collection strategies, which are based on customer behavior and risk profile and include direct customer communications, repossession of collateral, the periodic sale of charged off loans as well as additional strategies, such as litigation. (2) Represents foreign currency translation adjustments. (3) Concurrent with our adoption of the CECL standard in the first quarter of 2020, we reclassified our finance charge and fee reserve to our allowance for credit losses, with a corresponding increase to credit card loans held for investment. Credit Card Partnership Loss Sharing Arrangements We have certain credit card partnership agreements that are presented within our consolidated financial statements on a net basis, in which our partner agrees to share a portion of the credit losses on the underlying loan portfolio. The expected reimbursements from these partners are netted against our allowance for credit losses. Our methodology for estimating reimbursements is consistent with the methodology we use to estimate the allowance for credit losses on our credit card loan receivables. These expected reimbursements result in reductions to net charge-offs and provision for credit losses. See “ Note 1—Summary of Significant Accounting Policies ” in our 2019 Form 10-K for further discussion of our credit card partnership agreements. The table below summarizes the changes in the estimated reimbursements from these partners for the three and six months ended June 30, 2020 and 2019 . Table 4.2 : Summary of Credit Card Partnership Loss Sharing Arrangements Impacts Three Months Ended June 30, (Dollars in millions) 2020 2019 Estimated reimbursements from partners, beginning of period $ 2,653 $ 442 Amounts due from partners which reduced net charge-offs (293 ) (105 ) Amounts estimated to be charged to partners which reduced provision for credit losses 73 77 Estimated reimbursements from partners, end of period $ 2,433 $ 414 Six Months Ended June 30, (Dollars in millions) 2020 2019 Estimated reimbursements from partners, beginning of period (1) $ 2,166 $ 379 Amounts due from partners which reduced net charge-offs (595 ) (213 ) Amounts estimated to be charged to partners which reduced provision for credit losses 862 248 Estimated reimbursements from partners, end of period $ 2,433 $ 414 _________ (1)

Variable Interest Entities and

Variable Interest Entities and Securitizations	6 Months Ended
	Jun. 30, 2020
Variable Interest Entities and Securitization [Abstract]
Variable Interest Entities and Securitizations	NOTE 5—VARIABLE INTEREST ENTITIES AND SECURITIZATIONS In the normal course of business, we enter into various types of transactions with entities that are considered to be VIEs. Our primary involvement with VIEs has been related to our securitization transactions in which we transferred assets to securitization trusts. We have primarily securitized credit card and auto loans, which have provided a source of funding for us and enabled us to transfer a certain portion of the economic risk of the loans or related debt securities to third parties. The entity that has a controlling financial interest in a VIE is referred to as the primary beneficiary and is required to consolidate the VIE. The majority of the VIEs in which we are involved have been consolidated in our financial statements. Summary of Consolidated and Unconsolidated VIEs The assets of our consolidated VIEs primarily consist of cash, loan receivables and the related allowance for credit losses, which we report on our consolidated balance sheets under restricted cash for securitization investors, loans held in consolidated trusts and allowance for credit losses, respectively. The assets of a particular VIE are the primary source of funds to settle its obligations. Creditors of these VIEs typically do not have recourse to our general credit. Liabilities primarily consist of debt securities issued by the VIEs, which we report under securitized debt obligations on our consolidated balance sheets. For unconsolidated VIEs, we present the carrying amount of assets and liabilities reflected on our consolidated balance sheets and our maximum exposure to loss. Our maximum exposure to loss is estimated based on the unlikely event that all of the assets in the VIEs become worthless and we are required to meet our maximum remaining funding obligations. The tables below present a summary of VIEs in which we had continuing involvement or held a variable interest, aggregated based on VIEs with similar characteristics as of June 30, 2020 and December 31, 2019 . We separately present information for consolidated and unconsolidated VIEs. Table 5.1 : Carrying Amount of Consolidated and Unconsolidated VIEs June 30, 2020 Consolidated Unconsolidated (Dollars in millions) Carrying Amount of Assets Carrying Amount of Liabilities Carrying Amount of Assets Carrying Amount of Liabilities Maximum Exposure to Loss Securitization-Related VIEs: Credit card loan securitizations (1) $ 25,119 $ 13,141 $ 0 $ 0 $ 0 Auto loan securitizations 3,007 2,662 0 0 0 Home loan securitizations 0 0 56 0 319 Total securitization-related VIEs 28,126 15,803 56 0 319 Other VIEs: (2) Affordable housing entities 248 18 4,553 1,262 4,553 Entities that provide capital to low-income and rural communities 2,030 69 0 0 0 Other 0 0 476 0 476 Total other VIEs 2,278 87 5,029 1,262 5,029 Total VIEs $ 30,404 $ 15,890 $ 5,085 $ 1,262 $ 5,348 December 31, 2019 Consolidated Unconsolidated (Dollars in millions) Carrying Amount of Assets Carrying Amount of Liabilities Carrying Amount of Assets Carrying Amount of Liabilities Maximum Exposure to Loss Securitization-Related VIEs: Credit card loan securitizations (1) $ 31,112 $ 16,113 $ 0 $ 0 $ 0 Auto loan securitizations 2,282 2,012 0 0 0 Home loan securitizations 0 0 66 0 352 Total securitization-related VIEs 33,394 18,125 66 0 352 Other VIEs: (2) Affordable housing entities 236 7 4,559 1,289 4,559 Entities that provide capital to low-income and rural communities 1,889 69 0 0 0 Other 0 0 502 0 502 Total other VIEs 2,125 76 5,061 1,289 5,061 Total VIEs $ 35,519 $ 18,201 $ 5,127 $ 1,289 $ 5,413 __________ (1) Represents the carrying amount of assets and liabilities owned by the VIE, which includes the seller’s interest and repurchased notes held by other related parties. (2) In certain investment structures, we consolidate a VIE which in turn holds as its primary asset an investment in an unconsolidated VIE. In these instances, we disclose the carrying amount of assets and liabilities on our consolidated balance sheets as unconsolidated VIEs to avoid duplicating our exposure, as the unconsolidated VIEs are generally the operating entities generating the exposure. The carrying amount of assets and liabilities included in the unconsolidated VIE columns above related to these investment structures were $2.3 billion of assets and $652 million of liabilities as of June 30, 2020 , and $2.3 billion of assets and $741 million of liabilities as of December 31, 2019 . Securitization-Related VIEs In a securitization transaction, assets are transferred to a trust, which generally meets the definition of a VIE. We engage in securitization activities as an issuer and an investor. Our primary securitization issuance activity includes credit card and auto securitizations, conducted through securitization trusts which we consolidate. Our continuing involvement in these securitization transactions mainly consists of acting as the primary servicer and holding certain retained interests. In our multifamily agency business, we originate multifamily commercial real estate loans and transfer them to securitization trusts of government-sponsored enterprises (“GSEs”). We retain the related Mortgage servicing rights (“MSRs”) and service the transferred loans pursuant to the guidelines set forth by the GSEs. As an investor, we hold primarily RMBS and CMBS in our investment securities portfolio, which represent variable interests in the respective securitization trusts from which those securities were issued. We do not consolidate the securitization trusts employed in these transactions as we do not have the power to direct the activities that most significantly impact the economic performance of these securitization trusts. Our maximum exposure to loss as a result of our involvement with these VIEs is the carrying value of MSRs and contractual obligations under loss sharing arrangements as well as investment securities on our consolidated balance sheets. See “ Note 6—Goodwill and Intangible Assets ” for information related to our MSRs associated with these securitizations and “ Note 2—Investment Securities ” for more information on the securities held in our investment securities portfolio. We exclude these VIEs from the tables within this note because we do not consider our continuing involvement with these VIEs to be significant as we either invest in securities issued by the VIE and were not involved in the design of the VIE or no transfers have occurred between the VIE and us. In addition, where we have certain lending arrangements in the normal course of business with entities that could be VIEs, we have also excluded these VIEs from the tables presented in this note. See “ Note 3—Loans ” for additional information regarding our lending arrangements in the normal course of business. The table below presents our continuing involvement in certain securitization-related VIEs as of June 30, 2020 and December 31, 2019 . Table 5.2 : Continuing Involvement in Securitization-Related VIEs (Dollars in millions) Credit Card Auto Mortgages June 30, 2020: Securities held by third-party investors $ 13,102 $ 2,659 $ 872 Receivables in the trust 26,317 2,885 882 Cash balance of spread or reserve accounts 0 10 16 Retained interests Yes Yes Yes Servicing retained Yes Yes No December 31, 2019: Securities held by third-party investors $ 15,798 $ 2,010 $ 962 Receivables in the trust 31,625 2,192 978 Cash balance of spread or reserve accounts 0 7 17 Retained interests Yes Yes Yes Servicing retained Yes Yes No Credit Card Securitizations We securitize a portion of our credit card loans which provides a source of funding for us. Credit card securitizations involve the transfer of credit card receivables to securitization trusts. These trusts then issue debt securities collateralized by the transferred receivables to third-party investors. We hold certain retained interests in our credit card securitizations and continue to service the receivables in these trusts. We consolidate these trusts because we are deemed to be the primary beneficiary as we have the power to direct the activities that most significantly impact the economic performance of the trusts, and the right to receive benefits or the obligation to absorb losses that could potentially be significant to the trusts. Auto Securitizations Similar to our credit card securitizations, we securitize a portion of our auto loans which provides a source of funding for us. Auto securitization involves the transfer of auto loans to securitization trusts. These trusts then issue debt securities collateralized by the transferred loans to third-party investors. We hold certain retained interests and continue to service the loans in these trusts. We consolidate these trusts because we are deemed to be the primary beneficiary as we have the power to direct the activities that most significantly impact the economic performance of the trusts, and the right to receive benefits or the obligation to absorb losses that could potentially be significant to the trusts. Mortgage Securitizations We had previously securitized mortgage loans by transferring these loans to securitization trusts that had issued mortgage-backed securities to investors. These mortgage trusts consist of option-adjustable rate mortgage (“option-ARM”) securitizations and securitizations from our discontinued operations which include the mortgage origination operations of our wholesale mortgage banking unit, GreenPoint Mortgage Funding, Inc. (“GreenPoint”) and the manufactured housing operations of GreenPoint Credit, LLC, a subsidiary of GreenPoint (collectively “GreenPoint securitizations”). We retain rights to certain future cash flows arising from these securitizations. We do not consolidate the mortgage securitizations because we do not have the power to direct the activities that most significantly impact the economic performance of the trusts, and the right to receive the benefits or the obligation to absorb losses that could potentially be significant to the trusts. Other VIEs Affordable Housing Entities As part of our community reinvestment initiatives, we invest in private investment funds that make equity investments in multifamily affordable housing properties. We receive affordable housing tax credits for these investments. The activities of these entities are financed with a combination of invested equity capital and debt. We account for certain of our investments in qualified affordable housing projects using the proportional amortization method if certain criteria are met. The proportional amortization method amortizes the cost of the investment over the period in which the investor expects to receive tax credits and other tax benefits, and the resulting amortization is recognized as a component of income tax expense attributable to continuing operations. For the six months ended June 30, 2020 and 2019 , we recognized amortization of $285 million and $279 million , respectively, and tax credits of $622 million and $355 million , respectively, associated with these investments within income tax provision or benefit. The carrying value of our equity investments in these qualified affordable housing projects was $4.5 billion and $4.4 billion as of June 30, 2020 and December 31, 2019 , respectively. We are periodically required to provide additional financial or other support during the period of the investments. Our liability for these unfunded commitments was $1.5 billion as of both June 30, 2020 and December 31, 2019 , and is largely expected to be paid from 2020 to 2022 . For those investment funds considered to be VIEs, we are not required to consolidate them if we do not have the power to direct the activities that most significantly impact the economic performance of those entities. We record our interests in these unconsolidated VIEs in loans held for investment, other assets and other liabilities on our consolidated balance sheets. Our maximum exposure to these entities is limited to our variable interests in the entities which consisted of assets of approximately $4.6 billion as of both June 30, 2020 and December 31, 2019 . The creditors of the VIEs have no recourse to our general credit and we do not provide additional financial or other support other than during the period that we are contractually required to provide it. The total assets of the unconsolidated VIE investment funds were approximately $10.8 billion and $10.9 billion as of June 30, 2020 and December 31, 2019 , respectively. Entities that Provide Capital to Low-Income and Rural Communities We hold variable interests in entities (“Investor Entities”) that invest in community development entities (“CDEs”) that provide debt financing to businesses and non-profit entities in low-income and rural communities. Variable interests in the CDEs held by the consolidated Investor Entities are also our variable interests. The activities of the Investor Entities are financed with a combination of invested equity capital and debt. The activities of the CDEs are financed solely with invested equity capital. We receive federal and state tax credits for these investments. We consolidate the VIEs in which we have the power to direct the activities that most significantly impact the VIE’s economic performance and where we have the obligation to absorb losses or right to receive benefits that could be potentially significant to the VIE. We consolidate other investments and CDEs that are not considered to be VIEs, but where we hold a controlling financial interest. The assets of the VIEs that we consolidated, which totaled approximately $2.0 billion and $1.9 billion as of June 30, 2020 and December 31, 2019 , respectively, are reflected on our consolidated balance sheets in cash, loans held for investment, and other assets. The liabilities are reflected in other liabilities. The creditors of the VIEs have no recourse to our general credit. We have not provided additional financial or other support other than during the period that we are contractually required to provide it. Other We hold variable interests in other VIEs, including companies that promote renewable energy sources and other equity method investments. We were not required to consolidate these VIEs because we do not have the power to direct the activities that most significantly impact their economic performance. Our maximum exposure to these VIEs is limited to the investments on our consolidated balance sheets of $476 million and $502 million as of June 30, 2020 and December 31, 2019 , respectively. The creditors of the other VIEs have no recourse to our general credit. We have not provided additional financial or other support other than during the period that we are contractually required to provide it.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	6 Months Ended
	Jun. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	NOTE 6—GOODWILL AND INTANGIBLE ASSETS The table below presents our goodwill, intangible assets and MSRs as of June 30, 2020 and December 31, 2019 . Goodwill is presented separately, while intangible assets and MSRs are included in other assets on our consolidated balance sheets. Table 6.1 : Components of Goodwill, Intangible Assets and MSRs June 30, 2020 (Dollars in millions) Carrying Amount of Assets Accumulated Amortization Net Carrying Amount Goodwill $ 14,645 N/A $ 14,645 Intangible assets: Purchased credit card relationship (“PCCR”) intangibles 1,932 $ (1,887 ) 45 Other (1) 249 (154 ) 95 Total intangible assets 2,181 (2,041 ) 140 Total goodwill and intangible assets $ 16,826 $ (2,041 ) $ 14,785 Commercial MSRs (2) $ 611 $ (289 ) $ 322 December 31, 2019 (Dollars in millions) Carrying Amount of Assets Accumulated Amortization Net Carrying Amount Goodwill $ 14,653 N/A $ 14,653 Intangible assets: PCCR intangibles 1,932 $ (1,864 ) 68 Other (1) 246 (140 ) 106 Total intangible assets 2,178 (2,004 ) 174 Total goodwill and intangible assets $ 16,831 $ (2,004 ) $ 14,827 Commercial MSRs (2) $ 555 $ (255 ) $ 300 __________ (1) Primarily consists of intangibles for sponsorship, customer and merchant relationships, partnership, trade name and other contract intangibles. (2) Commercial MSRs are accounted for under the amortization method on our consolidated balance sheets. Amortization expense for amortizable intangible assets, which is presented separately in our consolidated statements of income, totaled $16 million and $38 million for the three and six months ended June 30, 2020 , respectively, and $29 million and $59 million for the three and six months ended June 30, 2019 , respectively. Goodwill The following table presents changes in the carrying amount of goodwill by each of our business segments as of June 30, 2020 and December 31, 2019 . Table 6.2 : Goodwill by Business Segments (Dollars in millions) Credit Card Consumer Banking Commercial Banking Total Balance as of December 31, 2019 $ 5,088 $ 4,645 $ 4,920 $ 14,653 Other adjustments (1) (8 ) 0 0 (8 ) Balance as of June 30, 2020 $ 5,080 $ 4,645 $ 4,920 $ 14,645 __________ (1) Represents foreign currency translation adjustments and measurement period adjustments on prior period acquisitions.

Deposits and Borrowings

Deposits and Borrowings	6 Months Ended
	Jun. 30, 2020
Deposits and Borrowings [Abstract]
Deposits and Borrowings	NOTE 7—DEPOSITS AND BORROWINGS Our deposits represent our largest source of funding for our assets and operations, which include checking accounts, money market deposits, negotiable order of withdrawals, savings deposits and time deposits. We also use a variety of other funding sources including short-term borrowings, senior and subordinated notes, securitized debt obligations and other borrowings. In addition, we utilize FHLB advances, which are secured by certain portions of our loan and investment securities portfolios. Securitized debt obligations are presented separately on our consolidated balance sheets, as they represent obligations of consolidated securitization trusts, while federal funds purchased and securities loaned or sold under agreements to repurchase, senior and subordinated notes and other borrowings, including FHLB advances, are included in other debt on our consolidated balance sheets. Our total short-term borrowings generally consist of federal funds purchased and securities loaned or sold under agreements to repurchase and short-term FHLB advances. Our long-term debt consists of borrowings with an original contractual maturity of greater than one year. The following tables summarize the components of our deposits, short-term borrowings and long-term debt as of June 30, 2020 and December 31, 2019 . The carrying value presented below for these borrowings includes unamortized debt premiums and discounts, net of debt issuance costs and fair value hedge accounting adjustments. Table 7.1 : C omponents of Deposits, Short-Term Borrowings and Long-Term Debt (Dollars in millions) June 30, December 31, Deposits: Non-interest-bearing deposits $ 29,055 $ 23,488 Interest-bearing deposits (1) 275,183 239,209 Total deposits $ 304,238 $ 262,697 Short-term borrowings: Federal funds purchased and securities loaned or sold under agreements to repurchase $ 573 $ 314 FHLB advances 0 7,000 Total short-term borrowings $ 573 $ 7,314 June 30, 2020 December 31, (Dollars in millions) Maturity Dates Stated Interest Rates Weighted-Average Interest Rate Carrying Value Carrying Value Long-term debt: Securitized debt obligations 2020-2026 0.53% - 3.01% 1.77 % $ 15,761 $ 17,808 Senior and subordinated notes: Fixed unsecured senior debt (2) 2020-2029 0.80 - 4.75 2.81 21,701 23,302 Floating unsecured senior debt 2020-2023 0.81 - 1.91 1.01 2,008 2,695 Total unsecured senior debt 2.65 23,709 25,997 Fixed unsecured subordinated debt 2023-2026 3.38 - 4.20 3.78 4,772 4,475 Total senior and subordinated notes 28,481 30,472 Other long-term borrowings: Finance lease liabilities 2020-2031 1.63 - 9.91 3.71 85 103 Total other long-term borrowings 85 103 Total long-term debt $ 44,327 $ 48,383 Total short-term borrowings and long-term debt $ 44,900 $ 55,697 __________ (1) Includes $5.9 billion and $6.5 billion of time deposits in denominations in excess of the $250,000 federal insurance limit as of June 30, 2020 and December 31, 2019 , respectively. (2) Includes $1.4 billion of EUR-denominated unsecured notes as of both June 30, 2020 and December 31, 2019 .

Derivative Instruments and Hedg

Derivative Instruments and Hedging Activities	6 Months Ended
	Jun. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments and Hedging Activities	NOTE 8—DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES Use of Derivatives and Accounting for Derivatives We regularly enter into derivative transactions to support our overall risk management activities. Our primary market risks stem from the impact on our earnings and economic value of equity due to changes in interest rates and, to a lesser extent, changes in foreign exchange rates. We manage our interest rate sensitivity by employing several techniques, which include changing the duration and re-pricing characteristics of various assets and liabilities by using interest rate derivatives. We also use foreign currency derivatives to limit our earnings and capital exposures to foreign exchange risk by hedging exposures denominated in foreign currencies. We primarily use interest rate and foreign currency derivatives to hedge, but we may also use a variety of other derivative instruments, including caps, floors, options, futures and forward contracts, to manage our interest rate and foreign exchange risks. We designate these risk management derivatives as either qualifying accounting hedges or free-standing derivatives. Qualifying accounting hedges are further designated as fair value hedges, cash flow hedges or net investment hedges. Free-standing derivatives are economic hedges that do not qualify for hedge accounting. We also offer interest rate, commodity, foreign currency derivatives and other contracts as an accommodation to our customers within our Commercial Banking business. We enter into these derivatives with our customers primarily to help them manage their interest rate risks, hedge their energy and other commodities exposures, and manage foreign currency fluctuations. We then enter into derivative contracts with counterparties to economically hedge substantially all of our subsequent exposures. See below for additional information on our use of derivatives and how we account for them: • Fair Value Hedges: We designate derivatives as fair value hedges when they are used to manage our exposure to changes in the fair value of certain financial assets and liabilities, which fluctuate in value as a result of movements in interest rates. Changes in the fair value of derivatives designated as fair value hedges are presented in the same line item on our consolidated statements of income as the earnings effect of the hedged items. Our fair value hedges primarily consist of interest rate swaps that are intended to modify our exposure to interest rate risk on various fixed-rate financial assets and liabilities. • Cash Flow Hedges: We designate derivatives as cash flow hedges when they are used to manage our exposure to variability in cash flows related to forecasted transactions. Changes in the fair value of derivatives designated as cash flow hedges are recorded as a component of AOCI. Those amounts are reclassified into earnings in the same period during which the forecasted transactions impact earnings and presented in the same line item on our consolidated statements of income as the earnings effect of the hedged items. Our cash flow hedges use interest rate swaps and floors that are intended to hedge the variability in interest receipts or interest payments on some of our variable-rate financial assets or liabilities. We also enter into foreign currency forward contracts to hedge our exposure to variability in cash flows related to intercompany borrowings denominated in foreign currencies. • Net Investment Hedges: We use net investment hedges to manage the foreign currency exposure related to our net investments in foreign operations that have functional currencies other than the U.S. dollar. Changes in the fair value of net investment hedges are recorded in the translation adjustment component of AOCI, offsetting the translation gain or loss from those foreign operations. We execute net investment hedges using foreign currency forward contracts to hedge the translation exposure of the net investment in our foreign operations under the forward method. • Free-Standing Derivatives: Our free-standing derivatives primarily consist of our customer accommodation derivatives and other economic hedges. The customer accommodation derivatives and the related offsetting contracts are mainly interest rate, commodity and foreign currency contracts. The other free-standing derivatives are primarily used to economically hedge the risk of changes in the fair value of our commercial mortgage loan origination and purchase commitments as well as other interests held. Changes in the fair value of free-standing derivatives are recorded in earnings as a component of other non-interest income. Derivatives Counterparty Credit Risk Counterparty Types Derivative instruments contain an element of credit risk that arises from the potential failure of a counterparty to perform according to the terms of the contract, including making payments due upon maturity of certain derivative instruments. We execute our derivative contracts primarily in over-the-counter (“OTC”) markets. We also execute interest rate and commodity futures in the exchange-traded derivative markets. Our OTC derivatives consist of both trades cleared through central counterparty clearinghouses (“CCPs”) and uncleared bilateral contracts. The Chicago Mercantile Exchange (“CME”) and the LCH Group (“LCH”) are our CCPs in our centrally cleared contracts. In our uncleared bilateral contracts, we enter into agreements directly with our derivative counterparties. Counterparty Credit Risk Management We manage the counterparty credit risk associated with derivative instruments by entering into legally enforceable master netting arrangements, where possible, and exchanging collateral with our counterparties, typically in the form of cash or high-quality liquid securities. The amount of collateral exchanged is dependent upon the fair value of the derivative instruments as well as the fair value of the pledged collateral. When valuing collateral, an estimate of the variation in price and liquidity over time is subtracted in the form of a “haircut” to discount the value of the collateral pledged. Our exposure to derivative counterparty credit risk, at any point in time, is equal to the amount reported as a derivative asset on our balance sheet. The fair value of our derivatives is adjusted on an aggregate basis to take into consideration the effects of legally enforceable master netting agreements and any associated cash collateral received or pledged. See Table 8.3 for our net exposure associated with derivatives. The terms under which we collateralize our exposures differ between cleared exposures and uncleared bilateral exposures. • CCPs : We clear eligible OTC derivatives with CCPs as part of our regulatory requirements. Futures commission merchants (“FCMs”) serve as the intermediary between CCPs and us. CCPs require that we post initial and variation margin through our FCMs to mitigate the risk of non-payment or default. Initial margin is required upfront by CCPs as collateral against potential losses on our cleared derivative contracts and variation margin is exchanged on a daily basis to account for mark-to-market changes in those derivative contracts. For CME and LCH-cleared OTC derivatives, we characterize variation margin cash payments as settlements. Our FCM agreements governing these derivative transactions include provisions that may require us to post additional collateral under certain circumstances. • Bilateral Counterparties : We enter into legally enforceable master netting agreements and collateral agreements, where possible, with bilateral derivative counterparties to mitigate the risk of default. We review our collateral positions on a daily basis and exchange collateral with our counterparties in accordance with these agreements. These bilateral agreements typically provide the right to offset exposure with the same counterparty and require the party in a net liability position to post collateral. Agreements with certain bilateral counterparties require both parties to maintain collateral in the event the fair values of derivative instruments exceed established exposure thresholds. Certain of these bilateral agreements include provisions requiring that our debt maintain a credit rating of investment grade or above by each of the major credit rating agencies. In the event of a downgrade of our debt credit rating below investment grade, some of our counterparties would have the right to terminate their derivative contract and close out existing positions. Credit Risk Valuation Adjustments We record counterparty credit valuation adjustments (“CVAs”) on our derivative assets to reflect the credit quality of our counterparties. We consider collateral and legally enforceable master netting agreements that mitigate our credit exposure to each counterparty in determining CVAs, which may be adjusted due to changes in the fair values of the derivative contracts, collateral, and creditworthiness of the counterparty. We also record debit valuation adjustments (“DVAs”) to adjust the fair values of our derivative liabilities to reflect the impact of our own credit quality. Balance Sheet Presentation The following table summarizes the notional amounts and fair values of our derivative instruments as of June 30, 2020 and December 31, 2019 , which are segregated by derivatives that are designated as accounting hedges and those that are not, and are further segregated by type of contract within those two categories. The total derivative assets and liabilities are adjusted on an aggregate basis to take into consideration the effects of legally enforceable master netting agreements and any associated cash collateral received or pledged. Derivative assets and liabilities are included in other assets and other liabilities, respectively, on our consolidated balance sheets, and their related gains or losses are included in operating activities as changes in other assets and other liabilities in the consolidated statements of cash flows. Table 8.1 : Derivative Assets and Liabilities at Fair Value June 30, 2020 December 31, 2019 Notional or Contractual Amount Derivative (1) Notional or Contractual Amount Derivative (1) (Dollars in millions) Assets Liabilities Assets Liabilities Derivatives designated as accounting hedges: Interest rate contracts: Fair value hedges $ 48,761 $ 3 $ 20 $ 57,587 $ 11 $ 55 Cash flow hedges 114,600 1,002 13 96,900 321 29 Total interest rate contracts 163,361 1,005 33 154,487 332 84 Foreign exchange contracts: Fair value hedges 1,404 20 0 1,402 0 6 Cash flow hedges 4,639 50 63 6,103 0 113 Net investment hedges 2,596 27 14 2,829 0 102 Total foreign exchange contracts 8,639 97 77 10,334 0 221 Total derivatives designated as accounting hedges 172,000 1,102 110 164,821 332 305 Derivatives not designated as accounting hedges: Customer accommodation: Interest rate contracts 68,707 1,721 224 62,268 552 117 Commodity contracts 17,384 1,876 1,739 15,492 758 694 Foreign exchange and other contracts 3,816 48 52 4,674 39 42 Total customer accommodation 89,907 3,645 2,015 82,434 1,349 853 Other interest rate exposures (2) 6,263 87 81 6,729 48 30 Other contracts 1,614 1 8 1,562 0 9 Total derivatives not designated as accounting hedges 97,784 3,733 2,104 90,725 1,397 892 Total derivatives $ 269,784 $ 4,835 $ 2,214 $ 255,546 $ 1,729 $ 1,197 Less: netting adjustment (3) (2,226 ) (754 ) (633 ) (523 ) Total derivative assets/liabilities $ 2,609 $ 1,460 $ 1,096 $ 674 __________ (1) Does not reflect $33 million and $12 million recognized as a net valuation allowance on derivative assets and liabilities for non-performance risk as of June 30, 2020 and December 31, 2019 , respectively. Non-performance risk is included in derivative assets and liabilities, which are part of other assets and other liabilities on the consolidated balance sheets, and is offset through non-interest income in the consolidated statements of income. (2) Other interest rate exposures include commercial mortgage-related derivatives and interest rate swaps. (3) Represents balance sheet netting of derivative assets and liabilities, and related payables and receivables for cash collateral held or placed with the same counterparty. The following table summarizes the carrying value of our hedged assets and liabilities in fair value hedges and the associated cumulative basis adjustments included in those carrying values, excluding basis adjustments related to foreign currency risk, as of June 30, 2020 and December 31, 2019 . Table 8.2 : Hedged Items in Fair Value Hedging Relationships June 30, 2020 December 31, 2019 Carrying Amount Assets/(Liabilities) Cumulative Amount of Basis Adjustments Included in the Carrying Amount Carrying Amount Assets/(Liabilities) Cumulative Amount of Basis Adjustments Included in the Carrying Amount (Dollars in millions) Total Assets/(Liabilities) Discontinued-Hedging Relationships Total Assets/(Liabilities) Discontinued-Hedging Relationships Line item on our consolidated balance sheets in which the hedged item is included: Investment securities available for sale (1)(2) $ 4,858 $ 660 $ 212 $ 10,825 $ 300 $ 52 Interest-bearing deposits (14,851 ) (306 ) 0 (14,310 ) (12 ) 0 Securitized debt obligations (10,011 ) (248 ) 42 (9,403 ) 44 64 Senior and subordinated notes (22,620 ) (1,533 ) (732 ) (27,777 ) (458 ) 324 __________ (1) These amounts include the amortized cost basis of our investment securities designated in hedging relationships for which the hedged item is the last layer expected to be remaining at the end of the hedging relationship. In the second quarter of 2020, we terminated all last of layer hedging relationships with cumulative basis adjustment totaling $212 million as of June 30, 2020 . As of December 31, 2019 , the amortized cost basis of this portfolio was $5.9 billion , the amount of the designated hedged items was $3.1 billion , and the cumulative basis adjustment associated with these hedges was $75 million . (2) Carrying value represents amortized cost. Balance Sheet Offsetting of Financial Assets and Liabilities Derivative contracts and repurchase agreements that we execute bilaterally in the OTC market are generally governed by enforceable master netting arrangements where we generally have the right to offset exposure with the same counterparty. Either counterparty can generally request to net settle all contracts through a single payment upon default on, or termination of, any one contract. We elect to offset the derivative assets and liabilities under master netting arrangements for balance sheet presentation where a right of setoff exists. For derivative contracts entered into under master netting arrangements for which we have not been able to confirm the enforceability of the setoff rights, or those not subject to master netting arrangements, we do not offset our derivative positions for balance sheet presentation. The following table presents the gross and net fair values of our derivative assets, derivative liabilities, resale and repurchase agreements and the related offsetting amounts permitted under U.S. GAAP as of June 30, 2020 and December 31, 2019 . The table also includes cash and non-cash collateral received or pledged in accordance with such arrangements. The amount of collateral presented, however, is limited to the amount of the related net derivative fair values or outstanding balances; therefore, instances of over-collateralization are excluded. Table 8.3 : Offsetting of Financial Assets and Financial Liabilities Gross Amounts Gross Amounts Offset in the Balance Sheet Net Amounts as Recognized Securities Collateral Held Under Master Netting Agreements (Dollars in millions) Financial Instruments Cash Collateral Received Net Exposure As of June 30, 2020 Derivative assets (1) $ 4,835 $ (702 ) $ (1,524 ) $ 2,609 $ 0 $ 2,609 As of December 31, 2019 Derivative assets (1) 1,729 (347 ) (286 ) 1,096 0 1,096 Gross Amounts Gross Amounts Offset in the Balance Sheet Net Amounts as Recognized Securities Collateral Pledged Under Master Netting Agreements (Dollars in millions) Financial Instruments Cash Collateral Pledged Net Exposure As of June 30, 2020 Derivative liabilities (1) $ 2,214 $ (702 ) $ (52 ) $ 1,460 $ 0 $ 1,460 Repurchase agreements (2) 573 0 0 573 (573 ) 0 As of December 31, 2019 Derivative liabilities (1) 1,197 (347 ) (176 ) 674 0 674 Repurchase agreements (2) 314 0 0 314 (314 ) 0 __________ (1) We received cash collateral from derivative counterparties totaling $1.7 billion and $347 million as of June 30, 2020 and December 31, 2019 , respectively. We also received securities from derivative counterparties with a fair value of approximately $1 million as of both June 30, 2020 and December 31, 2019 , which we have the ability to re-pledge. We posted $1.3 billion and $954 million of cash collateral as of June 30, 2020 and December 31, 2019 , respectively. (2) Under our customer repurchase agreements, which mature the next business day, we pledged collateral with a fair value of $584 million and $320 million as of June 30, 2020 and December 31, 2019 , respectively, primarily consisting of agency RMBS securities. Income Statement and AOCI Presentation Fair Value and Cash Flow Hedges The net gains (losses) recognized in our consolidated statements of income related to derivatives in fair value and cash flow hedging relationships are presented below for the three and six months ended June 30, 2020 and 2019 . Table 8.4 : Effects of Fair Value and Cash Flow Hedge Accounting Three Months Ended June 30, 2020 Net Interest Income Non-Interest Income (Dollars in millions) Investment Securities Loans, Including Loans Held for Sale Other Interest-bearing Deposits Securitized Debt Obligations Senior and Subordinated Notes Other Total amounts presented in our consolidated statements of income $ 482 $ 5,820 $ 16 $ (611 ) $ (56 ) $ (180 ) $ 166 Fair value hedging relationships: Interest rate and foreign exchange contracts: Interest recognized on derivatives $ (17 ) $ 0 $ 0 $ 27 $ 40 $ 71 $ 0 Gains (losses) recognized on derivatives (26 ) 0 0 9 (13 ) 61 26 Gains (losses) recognized on hedged items (1) 22 0 0 (10 ) 0 (68 ) (26 ) Excluded component of fair value hedges (2) 0 0 0 0 0 0 0 Net expense recognized on fair value hedges $ (21 ) $ 0 $ 0 $ 26 $ 27 $ 64 $ 0 Cash flow hedging relationships: (3) Interest rate contracts: Realized losses reclassified from AOCI into net income $ 7 $ 135 $ 0 $ 0 $ 0 $ 0 $ 0 Foreign exchange contracts: Realized gains reclassified from AOCI into net income (4) 0 0 2 0 0 0 (2 ) Net income (expense) recognized on cash flow hedges $ 7 $ 135 $ 2 $ 0 $ 0 $ 0 $ (2 ) Six Months Ended June 30, 2020 Net Interest Income Non-Interest Income (Dollars in millions) Investment Securities Loans, Including Loans Held for Sale Other Interest-bearing Deposits Securitized Debt Obligations Senior and Subordinated Notes Other Total amounts presented in our consolidated statements of income $ 1,012 $ 12,362 $ 53 $ (1,342 ) $ (155 ) $ (419 ) $ 311 Fair value hedging relationships: Interest rate and foreign exchange contracts: Interest recognized on derivatives $ (28 ) $ 0 $ 0 $ 25 $ 52 $ 110 $ 0 Gains (losses) recognized on derivatives (364 ) 0 0 296 269 1,129 3 Gains (losses) recognized on hedged items (1) 360 0 0 (296 ) (292 ) (1,159 ) (3 ) Excluded component of fair value hedges (2) 0 0 0 0 0 (1 ) 0 Net income (expense) recognized on fair value hedges $ (32 ) $ 0 $ 0 $ 25 $ 29 $ 79 $ 0 Cash flow hedging relationships: (3) Interest rate contracts: Realized gains reclassified from AOCI into net income $ 9 $ 159 $ 0 $ 0 $ 0 $ 0 $ 0 Foreign exchange contracts: Realized gains reclassified from AOCI into net income (4) 0 0 9 0 0 0 (2 ) Net income recognized on cash flow hedges $ 9 $ 159 $ 9 $ 0 $ 0 $ 0 $ (2 ) Three Months Ended June 30, 2019 Net Interest Income Non-Interest Income (Dollars in millions) Investment Securities Loans, Including Loans Held for Sale Other Interest-bearing Deposits Securitized Debt Obligations Senior and Subordinated Notes Other Total amounts presented in our consolidated statements of income $ 629 $ 6,383 $ 64 $ (870 ) $ (139 ) $ (310 ) $ 191 Fair value hedging relationships: Interest rate contracts: Interest recognized on derivatives $ (1 ) $ 0 $ 0 $ (33 ) $ (6 ) $ (10 ) $ 0 Gains (losses) recognized on derivatives (175 ) 0 0 154 79 471 11 Gains (losses) recognized on hedged items (1) 174 0 0 (151 ) (102 ) (511 ) (10 ) Net income (expense) recognized on fair value hedges $ (2 ) $ 0 $ 0 $ (30 ) $ (29 ) $ (50 ) $ 1 Cash flow hedging relationships: (3) Interest rate contracts: Realized losses reclassified from AOCI into net income $ (3 ) $ (59 ) $ 0 $ 0 $ 0 $ 0 $ 0 Foreign exchange contracts: Realized gains (losses) reclassified from AOCI into net income (4) 0 0 13 0 0 0 (1 ) Net income (expense) recognized on cash flow hedges $ (3 ) $ (59 ) $ 13 $ 0 $ 0 $ 0 $ (1 ) Six Months Ended June 30, 2019 Net Interest Income Non-Interest Income (Dollars in millions) Investment Securities Loans, Including Loans Held for Sale Other Interest-bearing Deposits Securitized Debt Obligations Senior and Subordinated Notes Other Total amounts presented in our consolidated statements of income $ 1,284 $ 12,751 $ 133 $ (1,687 ) $ (282 ) $ (624 ) $ 348 Fair value hedging relationships: Interest rate contracts: Interest recognized on derivatives $ 1 $ 0 $ 0 $ (69 ) $ (12 ) $ (21 ) $ 0 Gains (losses) recognized on derivatives (286 ) 0 0 249 112 752 11 Gains (losses) recognized on hedged items (1) 284 0 0 (243 ) (159 ) (831 ) (10 ) Net income (expense) recognized on fair value hedges $ (1 ) $ 0 $ 0 $ (63 ) $ (59 ) $ (100 ) $ 1 Cash flow hedging relationships: (3) Interest rate contracts: Realized losses reclassified from AOCI into net income $ (7 ) $ (115 ) $ 0 $ 0 $ 0 $ 0 $ 0 Foreign exchange contracts: Realized gains (losses) reclassified from AOCI into net income (4) 0 0 25 0 0 0 (1 ) Net income (expense) recognized on cash flow hedges $ (7 ) $ (115 ) $ 25 $ 0 $ 0 $ 0 $ (1 ) __________ (1) Includes amortization expense of $17 million and $53 million for the three and six months ended June 30, 2020 , respectively, and amortization expense of $56 million and $117 million for the three and six months ended June 30, 2019 , respectively, related to basis adjustments on discontinued hedges. (2) Changes in fair values of cross-currency swaps attributable to changes in cross-currency basis spreads are excluded from the assessment of hedge effectiveness and recorded in other comprehensive income. The initial value of the excluded component is recognized in earnings over the life of the swap under the amortization approach. (3) See “ Note 9—Stockholders’ Equity ” for the effects of cash flow and net investment hedges on AOCI and amounts reclassified to net income, net of tax. (4) We recognized a loss of $299 million and a gain of $93 million for the three and six months ended June 30, 2020 , respectively, and a loss of $123 million and $295 million for the three and six months ended June 30, 2019 , respectively, on foreign exchange contracts reclassified from AOCI. These amounts were largely offset by the foreign currency transaction gains (losses) on our foreign currency denominated intercompany funding included other non-interest income. In the next 12 months, we expect to reclassify to earnings net after-tax gains of $649 million recorded in AOCI as of June 30, 2020 . These amounts will offset the cash flows associated with the hedged forecasted transactions. The maximum length of time over which forecasted transactions were hedged was approximately 7 years as of June 30, 2020 . The amount we expect to reclassify into earnings may change as a result of changes in market conditions and ongoing actions taken as part of our overall risk management strategy. Free-Standing Derivatives The net impacts to our consolidated statements of income related to free-standing derivatives are presented below for the three and six months ended June 30, 2020 and 2019 . These gains or losses are recognized in other non-interest income in our consolidated statements of income. T a ble 8.5 : Gains (Losses) on Free-Standing Derivatives Three Months Ended June 30, Six Months Ended June 30, (Dollars in millions) 2020 2019 2020 2019 Gains (losses) recognized in other non-interest income: Customer accommodation: Interest rate contracts $ (1 ) $ 4 $ 12 $ 10 Commodity contracts (1 ) 7 16 9 Foreign exchange and other contracts 1 4 4 7 Total customer accommodation (1 ) 15 32 26 Other interest rate exposures (34 ) (14 ) (16 ) (14 ) Other contracts 1 0 0 (2 ) Total $ (34 ) $ 1 $ 16 $ 10

Stockholders' Equity

Stockholders' Equity	6 Months Ended
	Jun. 30, 2020
Equity [Abstract]
Stockholders' Equity	NOTE 9—STOCKHOLDERS’ EQUITY Preferred Stock The following table summarizes our preferred stock outstanding as of June 30, 2020 and December 31, 2019 . Table 9.1 : Preferred Stock Outstanding (1) Redeemable by Issuer Beginning Per Annum Dividend Rate Dividend Frequency Liquidation Preference per Share Total Shares Outstanding as of June 30, 2020 Carrying Value (in millions) Series Description Issuance Date June 30, 2020 December 31, 2019 Series B (2) 6.00% Non-Cumulative August 20, 2012 September 1, 2017 6.00% Quarterly $ 1,000 0 $ 0 $ 853 Series E Fixed-to-Floating Rate Non-Cumulative May 14, 2015 June 1, 2020 5.55% through 5/31/2020; Semi-Annually through 5/31/2020; Quarterly thereafter 1,000 1,000,000 988 988 Series F 6.20% Non-Cumulative August 24, 2015 December 1, 2020 6.20 Quarterly 1,000 500,000 484 484 Series G 5.20% Non-Cumulative July 29, 2016 December 1, 2021 5.20 Quarterly 1,000 600,000 583 583 Series H 6.00% Non-Cumulative November 29, 2016 December 1, 2021 6.00 Quarterly 1,000 500,000 483 483 Series I 5.00% Non-Cumulative September 11, 2019 December 1, 2024 5.00 Quarterly 1,000 1,500,000 1,462 1,462 Series J 4.80% January 31, 2020 June 1, 2025 4.80 Quarterly 1,000 1,250,000 1,209 0 Total $ 5,209 $ 4,853 __________ (1) Except for Series E, ownership is held in the form of depositary shares, each representing a 1/40th interest in a share of fixed-rate non-cumulative perpetual preferred stock. (2) On March 2, 2020, we redeemed all outstanding shares of our preferred stock Series B. Accumulated Other Comprehensive Income Accumulated other comprehensive income primarily consists of accumulated net unrealized gains associated with securities available for sale, changes in fair value of derivatives in hedging relationships, and foreign currency translation adjustments. The following table includes the AOCI impacts from the adoption of the CECL standard and the changes in AOCI by component for the three and six months ended June 30, 2020 and 2019 . Table 9.2 : Accumulated Other Comprehensive Income (Loss) Three Months Ended June 30, 2020 (Dollars in millions) Securities Available for Sale Hedging Relationships (1) Foreign Currency Translation Adjustments (2) Other Total AOCI as of March 31, 2020 $ 2,151 $ 1,728 $ (174 ) $ (26 ) $ 3,679 Other comprehensive income (loss) before reclassifications 222 (60 ) 23 0 185 Amounts reclassified from AOCI into earnings 0 117 0 0 117 Other comprehensive income, net of tax 222 57 23 0 302 AOCI as of June 30, 2020 $ 2,373 $ 1,785 $ (151 ) $ (26 ) $ 3,981 Six Months Ended June 30, 2020 (Dollars in millions) Securities Available for Sale Hedging Relationships (1) Foreign Currency Translation Adjustments (2) Other Total AOCI as of December 31, 2019 $ 935 $ 354 $ (107 ) $ (26 ) $ 1,156 Cumulative effects from the adoption of the CECL standard (8 ) 0 0 0 (8 ) Other comprehensive income (loss) before reclassifications 1,446 1,635 (44 ) 0 3,037 Amounts reclassified from AOCI into earnings 0 (204 ) 0 0 (204 ) Other comprehensive income (loss), net of tax 1,446 1,431 (44 ) 0 2,833 AOCI as of June 30, 2020 $ 2,373 $ 1,785 $ (151 ) $ (26 ) $ 3,981 Three Months Ended June 30, 2019 (Dollars in millions) Securities Available for Sale Hedging Relationships (1) Foreign Currency Translation Adjustments (2) Securities Held to Maturity Other Total AOCI as of March 31, 2019 $ (147 ) $ (141 ) $ (147 ) $ (184 ) $ (41 ) $ (660 ) Other comprehensive income before reclassifications 284 406 15 0 0 705 Amounts reclassified from AOCI into earnings (12 ) 131 0 6 0 125 Other comprehensive income, net of tax 272 537 15 6 0 830 AOCI as of June 30, 2019 $ 125 $ 396 $ (132 ) $ (178 ) $ (41 ) $ 170 Six Months Ended June 30, 2019 (Dollars in millions) Securities Available for Sale Hedging Relationships (1) Foreign Currency Translation Adjustments (2) Securities Held to Maturity Other Total AOCI as of December 31, 2018 $ (439 ) $ (418 ) $ (177 ) $ (190 ) $ (39 ) $ (1,263 ) Other comprehensive income (loss) before reclassifications 594 517 45 0 (1 ) 1,155 Amounts reclassified from AOCI into earnings (30 ) 297 0 12 (1 ) 278 Other comprehensive income (loss), net of tax 564 814 45 12 (2 ) 1,433 AOCI as of June 30, 2019 $ 125 $ 396 $ (132 ) $ (178 ) $ (41 ) $ 170 _________ (1) Includes amounts related to cash flow hedges as well as the excluded component of cross-currency swaps designated as fair value hedges. (2) Includes other comprehensive loss of $8 million and gain of $134 million for the three and six months ended June 30, 2020 , respectively, and other comprehensive gains of $53 million and $19 million for the three and six months ended June 30, 2019 , respectively, from hedging instruments designated as net investment hedges. The following table presents amounts reclassified from each component of AOCI to our consolidated statements of income for the three and six months ended June 30, 2020 and 2019 . Table 9.3 : Reclassifications from AOCI (Dollars in millions) Three Months Ended June 30, Six Months Ended June 30, AOCI Components Affected Income Statement Line Item 2020 2019 2020 2019 Securities available for sale: Non-interest income $ 0 $ 15 $ 0 $ 39 Income tax provision 0 3 0 9 Net income 0 12 0 30 Hedging relationships: Interest rate contracts: Interest income 142 (62 ) 168 (122 ) Foreign exchange contracts: Interest income 2 13 9 25 Interest expense (1 ) 0 (2 ) 0 Non-interest income (299 ) (123 ) 93 (295 ) Income (loss) from continuing operations before income taxes (156 ) (172 ) 268 (392 ) Income tax provision (benefit) (39 ) (41 ) 64 (95 ) Net income (loss) (117 ) (131 ) 204 (297 ) Securities held to maturity: (1) Interest income 0 (8 ) 0 (16 ) Income tax provision (benefit) 0 (2 ) 0 (4 ) Net income (loss) 0 (6 ) 0 (12 ) Other: Non-interest income and non-interest expense 0 0 0 1 Income tax provision 0 0 0 0 Net income 0 0 0 1 Total reclassifications $ (117 ) $ (125 ) $ 204 $ (278 ) __________ (1) On December 31, 2019, we transferred our entire portfolio of held to maturity securities to available for sale. The table below summarizes other comprehensive income activity and the related tax impact for the three and six months ended June 30, 2020 and 2019 . Table 9.4 : Other Comprehensive Income Three Months Ended June 30, 2020 2019 (Dollars in millions) Before Tax Provision (Benefit) After Tax Before Tax Provision (Benefit) After Tax Other comprehensive income: Net unrealized gains on securities available for sale $ 292 $ 70 $ 222 $ 358 $ 86 $ 272 Net unrealized gains on hedging relationships 76 19 57 708 171 537 Foreign currency translation adjustments (1) 20 (3 ) 23 33 18 15 Net changes in securities held to maturity 0 0 0 9 3 6 Other 0 0 0 (1 ) (1 ) 0 Other comprehensive income $ 388 $ 86 $ 302 $ 1,107 $ 277 $ 830 Six Months Ended June 30, 2020 2019 (Dollars in millions) Before Tax Provision (Benefit) After Tax Before Tax Provision (Benefit) After Tax Other comprehensive income: Net unrealized gains on securities available for sale $ 1,902 $ 456 $ 1,446 $ 742 $ 178 $ 564 Net unrealized gains on hedging relationships 1,884 453 1,431 1,073 259 814 Foreign currency translation adjustments (1) (1 ) 43 (44 ) 52 7 45 Net changes in securities held to maturity 0 0 0 16 4 12 Other 0 0 0 (3 ) (1 ) (2 ) Other comprehensive income $ 3,785 $ 952 $ 2,833 $ 1,880 $ 447 $ 1,433 __________ (1) Includes the impact of hedging instruments designated as net investment hedges.

Earnings Per Common Share

Earnings Per Common Share	6 Months Ended
	Jun. 30, 2020
Earnings Per Share [Abstract]
Earnings Per Common Share	NOTE 10—EARNINGS PER COMMON SHARE The following table sets forth the computation of basic and diluted earnings per common share. Table 10.1 : Computation of Basic and Diluted Earnings per Common Share Three Months Ended June 30, Six Months Ended June 30, (Dollars and shares in millions, except per share data) 2020 2019 2020 2019 Income (loss) from continuing operations, net of tax $ (917 ) $ 1,616 $ (2,257 ) $ 3,026 Income (loss) from discontinued operations, net of tax (1 ) 9 (1 ) 11 Net income (loss) (918 ) 1,625 (2,258 ) 3,037 Dividends and undistributed earnings allocated to participating securities (1 ) (12 ) (4 ) (24 ) Preferred stock dividends (90 ) (80 ) (145 ) (132 ) Issuance cost for redeemed preferred stock 0 0 (22 ) 0 Net income (loss) available to common stockholders $ (1,009 ) $ 1,533 $ (2,429 ) $ 2,881 Total weighted-average basic common shares outstanding 456.7 470.8 457.1 470.1 Effect of dilutive securities: (1) Stock options 0.0 1.3 0.0 1.2 Other contingently issuable shares 0.0 0.9 0.0 1.0 Total effect of dilutive securities 0.0 2.2 0.0 2.2 Total weighted-average diluted common shares outstanding 456.7 473.0 457.1 472.3 Basic earnings per common share: Net income (loss) from continuing operations $ (2.21 ) $ 3.24 $ (5.31 ) $ 6.11 Income from discontinued operations 0.00 0.02 0.00 0.02 Net income (loss) per basic common share $ (2.21 ) $ 3.26 $ (5.31 ) $ 6.13 Diluted earnings per common share: (1) Net income (loss) from continuing operations $ (2.21 ) $ 3.22 $ (5.31 ) $ 6.08 Income from discontinued operations 0.00 0.02 0.00 0.02 Net income (loss) per diluted common share $ (2.21 ) $ 3.24 $ (5.31 ) $ 6.10 __________ (1) In periods of net loss, dilutive securities are excluded as their inclusion would have an anti-dilutive effect. Accordingly, awards of 362 thousand shares and options of 2.6 million shares with an exercise price ranging from $45.75 to $86.34 and awards of 956 thousand shares and options of 2.7 million shares with an exercise price ranging from $36.55 to $86.34 were excluded for the three and six months ended June 30, 2020 , respectively. For the three months ended June 30, 2019 , no shares were excluded from the computation of diluted earnings per share. For the six months ended June 30, 2019 , 137 thousand shares related to options with an exercise price of $86.34 were excluded from the computation of diluted earnings per share, because their inclusion would be anti-dilutive.

Fair Value Measurement

Fair Value Measurement	6 Months Ended
	Jun. 30, 2020
Fair Value Disclosures [Abstract]
Fair Value Measurement	NOTE 11—FAIR VALUE MEASUREMENT Fair value, also referred to as an exit price, is defined as the price that would be received for an asset or paid to transfer a liability in an orderly transaction between market participants on the measurement date. The fair value accounting guidance provides a three-level fair value hierarchy for classifying financial instruments. This hierarchy is based on the markets in which the assets or liabilities trade and whether the inputs to the valuation techniques used to measure fair value are observable or unobservable. The fair value measurement of a financial asset or liability is assigned a level based on the lowest level of any input that is significant to the fair value measurement in its entirety. The three levels of the fair value hierarchy are described below: Level 1: Valuation is based on quoted prices (unadjusted) in active markets for identical assets or liabilities. Level 2: Valuation is based on observable market-based inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 3: Valuation is generated from techniques that use significant assumptions not observable in the market. Valuation techniques include pricing models, discounted cash flow methodologies or similar techniques. The accounting guidance for fair value measurements requires that we maximize the use of observable inputs and minimize the use of unobservable inputs in determining fair value. The accounting guidance provides for the irrevocable option to elect, on a contract-by-contract basis, to measure certain financial assets and liabilities at fair value at inception of the contract and record any subsequent changes in fair value in earnings. The determination and classification of financial instruments in the fair value hierarchy is performed at the end of each reporting period. We consider all available information, including observable market data, indications of market liquidity and orderliness, and our understanding of the valuation techniques and significant inputs. For additional information on the valuation techniques used in estimating the fair value of our financial assets and liabilities on a recurring basis, see “Note 16—Fair Value Measurement” in our 2019 Form 10-K. Assets and Liabilities Measured at Fair Value on a Recurring Basis The following table displays our assets and liabilities measured on our consolidated balance sheets at fair value on a recurring basis as of June 30, 2020 and December 31, 2019 . Table 11.1 : Assets and Liabilities Measured at Fair Value on a Recurring Basis June 30, 2020 Fair Value Measurements Using Netting Adjustments (1) (Dollars in millions) Level 1 Level 2 Level 3 Total Assets: Securities available for sale: U.S. Treasury securities $ 4,362 $ 0 $ 0 — $ 4,362 RMBS 0 71,540 474 — 72,014 CMBS 0 10,118 282 — 10,400 Other securities 194 889 0 — 1,083 Total securities available for sale 4,556 82,547 756 — 87,859 Loans held for sale 0 668 0 — 668 Other assets: Derivative assets (2) 301 4,383 151 $ (2,226 ) 2,609 Other (3) 348 0 56 — 404 Total assets $ 5,205 $ 87,598 $ 963 $ (2,226 ) $ 91,540 Liabilities: Other liabilities: Derivative liabilities (2) $ 220 $ 1,877 $ 117 $ (754 ) $ 1,460 Total liabilities $ 220 $ 1,877 $ 117 $ (754 ) $ 1,460 December 31, 2019 Fair Value Measurements Using Netting Adjustments (1) (Dollars in millions) Level 1 Level 2 Level 3 Total Assets: Securities available for sale: U.S. Treasury securities $ 4,124 $ 0 $ 0 — $ 4,124 RMBS 0 63,909 429 — 64,338 CMBS 0 9,413 13 — 9,426 Other securities 231 1,094 0 — 1,325 Total securities available for sale 4,355 74,416 442 — 79,213 Loans held for sale 0 251 0 — 251 Other assets: Derivative assets (2) 84 1,568 77 $ (633 ) 1,096 Other (3) 344 0 66 — 410 Total assets $ 4,783 $ 76,235 $ 585 $ (633 ) $ 80,970 Liabilities: Other liabilities: Derivative liabilities (2) $ 17 $ 1,129 $ 51 $ (523 ) $ 674 Total liabilities $ 17 $ 1,129 $ 51 $ (523 ) $ 674 __________ (1) Represents balance sheet netting of derivative assets and liabilities, and related payables and receivables for cash collateral held or placed with the same counterparty. See “ Note 8—Derivative Instruments and Hedging Activities ” for additional information. (2) Does not reflect $33 million and $12 million recognized as a net valuation allowance on derivative assets and liabilities for non-performance risk as of June 30, 2020 and December 31, 2019 , respectively. Non-performance risk is included in derivative assets and liabilities, which are part of other assets and other liabilities on the consolidated balance sheets, and is offset through non-interest income in the consolidated statements of income. (3) As of June 30, 2020 and December 31, 2019 , other includes retained interests in securitizations of $56 million and $66 million , deferred compensation plan assets of $347 million and $343 million , and equity securities of $1 million , respectively. Level 3 Recurring Fair Val ue Rollforward The table below presents a reconciliation for all assets and liabilities measured and recognized at fair value on a recurring basis using significant unobservable inputs (Level 3) for the three and six months ended June 30, 2020 and 2019 . Generally, transfers into Level 3 were primarily driven by the usage of unobservable assumptions in the pricing of these financial instruments as evidenced by wider pricing variations among pricing vendors and transfers out of Level 3 were primarily driven by the usage of assumptions corroborated by market observable information as evidenced by tighter pricing among multiple pricing sources. Table 11.2 : Level 3 Recurring Fair Value Rollforward Fair Value Measurements Using Significant Unobservable Inputs (Level 3) Three Months Ended June 30, 2020 Total Gains (Losses) (Realized/Unrealized) Net Unrealized Gains (Losses) Included in Net Income Related to Assets and Liabilities Still Held as of June 30, 2020 (1) (Dollars in millions) Balance, April 1, 2020 Included in Net Income (1) Included in OCI Purchases Sales Issuances Settlements Transfers Into Level 3 Transfers Out of Level 3 Balance, June 30, 2020 Securities available for sale: (2) RMBS $ 373 $ 6 $ 29 $ 0 $ 0 $ 0 $ (16 ) $ 131 $ (49 ) $ 474 $ 7 CMBS 36 0 (1 ) 0 0 0 (3 ) 250 0 282 (3 ) Total securities available for sale 409 6 28 0 0 0 (19 ) 381 (49 ) 756 4 Other assets: Retained interests in securitizations 59 (3 ) 0 0 0 0 0 0 0 56 (3 ) Net derivative assets (liabilities) (4) 66 (8 ) 0 0 0 2 (26 ) 0 0 34 0 Fair Value Measurements Using Significant Unobservable Inputs (Level 3) Six Months Ended June 30, 2020 Total Gains (Losses) (Realized/Unrealized) Net Unrealized Gains (Losses) Included in Net Income Related to Assets and Liabilities Still Held as of June 30, 2020 (1) (Dollars in millions) Balance, January 1, 2020 Included in Net Income (1) Included in OCI Purchases Sales Issuances Settlements Transfers Into Level 3 Transfers Out of Level 3 Balance, June 30, 2020 Securities available for sale: (2)(3) RMBS $ 433 $ 9 $ (24 ) $ 0 $ 0 $ 0 $ (33 ) $ 140 $ (51 ) $ 474 $ 10 CMBS 13 0 (1 ) 0 0 0 (3 ) 273 0 282 (3 ) Total securities available for sale 446 9 (25 ) 0 0 0 (36 ) 413 (51 ) 756 7 Other assets: Retained interests in securitizations 66 (10 ) 0 0 0 0 0 0 0 56 (10 ) Net derivative assets (liabilities) (4) 26 12 0 0 0 26 (28 ) 0 (2 ) 34 18 Fair Value Measurements Using Significant Unobservable Inputs (Level 3) Three Months Ended June 30, 2019 Total Gains (Losses) (Realized/Unrealized) Net Unrealized Gains (Losses) Included in Net Income Related to Assets and Liabilities Still Held as of June 30, 2019 (1) (Dollars in millions) Balance, April 1, 2019 Included in Net Income (1) Included in OCI Purchases Sales Issuances Settlements Transfers Into Level 3 Transfers Out of Level 3 Balance, June 30, 2019 Securities available for sale: (2) RMBS $ 434 $ 9 $ 2 $ 0 $ 0 $ 0 $ (13 ) $ 97 $ (14 ) $ 515 $ 10 CMBS 9 0 0 0 0 0 0 0 0 9 0 Total securities available for sale 443 9 2 0 0 0 (13 ) 97 (14 ) 524 10 Other assets: Retained interest in securitizations 155 22 0 0 0 0 0 0 0 177 22 Net derivative assets (liabilities) (4) 6 0 0 0 0 (7 ) 8 0 (1 ) 6 (2 ) Fair Value Measurements Using Significant Unobservable Inputs (Level 3) Six Months Ended June 30, 2019 Total Gains (Losses) (Realized/Unrealized) Net Unrealized Gains (Losses) Included in Net Income Related to Assets and Liabilities Still Held as of (1) (Dollars in millions) Balance, January 1, 2019 Included in Net Income (1) Included in OCI Purchases Sales Issuances Settlements Transfers Into Level 3 Transfers Out of Level 3 Balance, June 30, 2019 Securities available for sale: (2) RMBS $ 433 $ 17 $ 13 $ 0 $ 0 $ 0 $ (25 ) $ 114 $ (37 ) $ 515 $ 20 CMBS 10 0 0 0 0 0 (1 ) 0 0 9 0 Total securities available for sale 443 17 13 0 0 0 (26 ) 114 (37 ) 524 20 Other assets: Retained interest in securitizations 158 19 0 0 0 0 0 0 0 177 19 Net derivative assets (liabilities) (4) (10 ) 5 0 0 0 (13 ) 27 0 (3 ) 6 4 __________ (1) Realized gains (losses) on securities available for sale are included in net securities gains (losses), and retained interests in securitizations are reported as a component of non-interest income in our consolidated statements of income. Gains (losses) on derivatives are included as a component of net interest income or non-interest income in our consolidated statements of income. (2) For the three and six months ended June 30, 2020 , included in OCI related to Level 3 securities available for sale still held as of June 30, 2020 were net unrealized gains of $36 million and net unrealized losses of $23 million , respectively. For the three and six months ended June 30, 2019 , net unrealized gains included in OCI related to Level 3 securities available for sale still held as of June 30, 2019 were $3 million and $13 million , respectively. (3) The fair value of RMBS as of January 1, 2020 includes a cumulative adjustment of $4 million from the adoption of the CECL standard. (4) Includes derivative assets and liabilities of $151 million and $117 million , respectively, as of June 30, 2020 , $70 million and $64 million , respectively, as of June 30, 2019 . Significant Level 3 Fair Value Asset and Liability Inputs Generally, uncertainties in fair value measurements of financial instruments, such as changes in unobservable inputs, may have a significant impact on fair value. Certain of these unobservable inputs will, in isolation, have a directionally consistent impact on the fair value of the instrument for a given change in that input. Alternatively, the fair value of the instrument may move in an opposite direction for a given change in another input. In general, an increase in the discount rate, default rates, loss severity and credit spreads, in isolation, would result in a decrease in the fair value measurement. In addition, an increase in default rates would generally be accompanied by a decrease in recovery rates, slower prepayment rates and an increase in liquidity spreads. Techniques and Inputs for Level 3 Fair Value Measurements The following table presents the significant unobservable inputs used to determine the fair values of our Level 3 financial instruments on a recurring basis. We utilize multiple vendor pricing services to obtain fair value for our securities. Several of our vendor pricing services are only able to provide unobservable input information for a limited number of securities due to software licensing restrictions. Other vendor pricing services are able to provide unobservable input information for all securities for which they provide a valuation. As a result, the unobservable input information for the securities available for sale presented below represents a composite summary of all information we are able to obtain. The unobservable input information for all other Level 3 financial instruments is based on the assumptions used in our internal valuation models. Table 11.3 : Quantitative Information about Level 3 Fair Value Measurements Quantitative Information about Level 3 Fair Value Measurements (Dollars in millions) Fair Value at June 30, 2020 Significant Valuation Techniques Significant Unobservable Inputs Range Weighted Average (1) Securities available for sale: RMBS $ 474 Discounted cash flows (vendor pricing) Yield 0-12% 4% CMBS 282 Discounted cash flows (vendor pricing) Yield 1-2% 1% Other assets: Retained interests in securitizations (2) 56 Discounted cash flows Life of receivables (months) 33-52 N/A Net derivative assets (liabilities) 34 Discounted cash flows Swap rates 1% 1% Quantitative Information about Level 3 Fair Value Measurements (Dollars in millions) Fair Value at December 31, 2019 Significant Valuation Techniques Significant Unobservable Inputs Range Weighted Average (1) Securities available for sale: RMBS $ 429 Discounted cash flows (vendor pricing) Yield 2-18% 5% CMBS 13 Discounted cash flows (vendor pricing) Yield 2-3% 2% Other assets: Retained interests in securitizations (2) 66 Discounted cash flows Life of receivables (months) 35-51 N/A Net derivative assets (liabilities) 26 Discounted cash flows Swap rates 2% 2% __________ (1) Weighted averages are calculated by using the product of the input multiplied by the relative fair value of the instruments. (2) Due to the nature of the various mortgage securitization structures in which we have retained interests, it is not meaningful to present a consolidated weighted average for the significant unobservable inputs. Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis We are required to measure and recognize certain assets at fair value on a nonrecurring basis on the consolidated balance sheets. These assets are not measured at fair value on an ongoing basis but are subject to fair value adjustments in certain circumstances (for example, from the application of lower of cost or fair value accounting or when we evaluate for impairment). The following table presents the carrying value of the assets measured at fair value on a nonrecurring basis and still held as of June 30, 2020 and December 31, 2019 , and for which a nonrecurring fair value measurement was recorded during the six and twelve months then ended. Table 11.4 : Nonrecurring Fair Value Measurements June 30, 2020 Estimated Fair Value Hierarchy Total (Dollars in millions) Level 2 Level 3 Loans held for investment $ 0 $ 289 $ 289 Other assets (1) 0 52 52 Total $ 0 $ 341 $ 341 December 31, 2019 Estimated Fair Value Hierarchy Total (Dollars in millions) Level 2 Level 3 Loans held for investment $ 0 $ 294 $ 294 Other assets (1) 0 103 103 Total $ 0 $ 397 $ 397 __________ (1) As of June 30, 2020 , other assets included equity investments accounted for under the measurement alternative of $28 million , repossessed assets of $23 million and long-lived assets held for sale of $1 million . As of December 31, 2019 , other assets included equity investments accounted for under the measurement alternative of $5 million , repossessed assets of $61 million and long-lived assets held for sale of $37 million . In the above table, loans held for investment are generally valued based in part on the estimated fair value of the underlying collateral and the non-recoverable rate, which is considered to be a significant unobservable input. The non-recoverable rate ranged from 0% to 15% , with a weighted average of 3% , and from 0% to 50% , with a weighted average of 6% , as of June 30, 2020 and December 31, 2019 , respectively. The weighted average non-recoverable rate is calculated based on the estimated market value of the underlying collateral. The significant unobservable inputs and related quantitative information related to fair value of the other assets are not meaningful to disclose as they vary significantly across properties and collateral. The following table presents total nonrecurring fair value measurements for the period, included in earnings, attributable to the change in fair value relating to assets that are still held at June 30, 2020 and 2019 . Table 11.5 : Nonrecurring Fair Value Measurements Included in Earnings Total Gains (Losses) Six Months Ended June 30, (Dollars in millions) 2020 2019 Loans held for investment $ (253 ) $ (132 ) Loans held for sale 0 (1 ) Other assets (1) (22 ) (57 ) Total $ (275 ) $ (190 ) __________ (1) Other assets include fair value adjustments related to repossessed assets, long-lived assets held for sale and equity investments accounted for under the measurement alternative. Fair Value of Financial Instruments The following table presents the carrying value and estimated fair value, including the level within the fair value hierarchy, of our financial instruments that are not measured at fair value on a recurring basis on our consolidated balance sheets as of June 30, 2020 and December 31, 2019 . Table 11.6 : Fair Value of Financial Instruments June 30, 2020 Carrying Value Estimated Fair Value Estimated Fair Value Hierarchy (Dollars in millions) Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 55,818 $ 55,818 $ 4,583 $ 51,235 $ 0 Restricted cash for securitization investors 740 740 740 0 0 Net loans held for investment 234,680 242,893 0 0 242,893 Loans held for sale 43 43 0 43 0 Interest receivable 1,574 1,574 0 1,574 0 Other investments (1) 1,341 1,341 0 1,341 0 Financial liabilities: Deposits with defined maturities 43,912 44,452 0 44,452 0 Securitized debt obligations 15,761 15,933 0 15,933 0 Senior and subordinated notes 28,481 28,771 0 28,771 0 Federal funds purchased and securities loaned or sold under agreements to repurchase 573 573 0 573 0 Interest payable 380 380 0 380 0 December 31, 2019 Carrying Value Estimated Fair Value Estimated Fair Value Hierarchy (Dollars in millions) Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 13,407 $ 13,407 $ 4,129 $ 9,278 $ 0 Restricted cash for securitization investors 342 342 342 0 0 Net loans held for investment 258,601 258,696 0 0 258,696 Loans held for sale 149 149 0 149 0 Interest receivable 1,758 1,758 0 1,758 0 Other investments (1) 1,638 1,638 0 1,638 0 Financial liabilities: Deposits with defined maturities 44,958 45,225 0 45,225 0 Securitized debt obligations 17,808 17,941 0 17,941 0 Senior and subordinated notes 30,472 31,233 0 31,233 0 Federal funds purchased and securities loaned or sold under agreements to repurchase 314 314 0 314 0 Other borrowings (2) 7,000 7,001 0 7,001 0 Interest payable 439 439 0 439 0 __________ (1) Other investments include FHLB and Federal Reserve stock. These investments are included in other assets on our consolidated balance sheets. (2) Other borrowings excludes finance lease liabilities.

Business Segments and Revenue f

Business Segments and Revenue from Contracts with Customers	6 Months Ended
	Jun. 30, 2020
Segment Reporting [Abstract]
Segment Reporting Disclosure	NOTE 12—BUSINESS SEGMENTS AND REVENUE FROM CONTRACTS WITH CUSTOMERS Our principal operations are organized into three major business segments, which are defined primarily based on the products and services provided or the types of customers served: Credit Card, Consumer Banking and Commercial Banking. The operations of acquired businesses have been integrated into our existing business segments. Certain activities that are not part of a segment, such as management of our corporate investment portfolio, asset/liability management by our centralized Corporate Treasury group and residual tax expense or benefit to arrive at the consolidated effective tax rate that is not assessed to our primary business segments, are included in the Other category. Basis of Presentation We report the results of each of our business segments on a continuing operations basis. The results of our individual businesses reflect the manner in which management evaluates performance and makes decisions about funding our operations and allocating resources. Business Segment Reporting Methodology The results of our business segments are intended to present each segment as if it were a stand-alone business. Our internal management and reporting process used to derive our segment results employs various allocation methodologies, including funds transfer pricing, to assign certain balance sheet assets, deposits and other liabilities and their related revenue and expenses directly or indirectly attributable to each business segment. Our funds transfer pricing process provides a funds credit for sources of funds, such as deposits generated by our Consumer Banking and Commercial Banking businesses, and a funds charge for the use of funds by each segment. Due to the integrated nature of our business segments, estimates and judgments have been made in allocating certain revenue and expense items. Transactions between segments are based on specific criteria or approximate third-party rates. We regularly assess the assumptions, methodologies and reporting classifications used for segment reporting, which may result in the implementation of refinements or changes in future periods. We provide additional information on the allocation methodologies used to derive our business segment results in “Note 17—Business Segments and Revenue from Contracts with Customers” in our 2019 Form 10-K. Segment Results and Reconciliation We may periodically change our business segments or reclassify business segment results based on modifications to our management reporting methodologies or changes in organizational alignment. The following table presents our business segment results for the three and six months ended June 30, 2020 and 2019 , selected balance sheet data as of June 30, 2020 and 2019 , and a reconciliation of our total business segment results to our reported consolidated income from continuing operations, loans held for investment and deposits. Table 12.1 : Segment Results and Reconciliation Three Months Ended June 30, 2020 (Dollars in millions) Credit Card Consumer Banking Commercial Banking (1) Other (1) Consolidated Total Net interest income (loss) $ 3,369 $ 1,665 $ 518 $ (92 ) $ 5,460 Non-interest income (loss) 845 97 180 (26 ) 1,096 Total net revenue (loss) (2) 4,214 1,762 698 (118 ) 6,556 Provision (benefit) for credit losses 2,944 876 427 (1 ) 4,246 Non-interest expense 1,969 1,036 425 340 3,770 Loss from continuing operations before income taxes (699 ) (150 ) (154 ) (457 ) (1,460 ) Income tax benefit (166 ) (36 ) (36 ) (305 ) (543 ) Loss from continuing operations, net of tax $ (533 ) $ (114 ) $ (118 ) $ (152 ) $ (917 ) Loans held for investment $ 107,310 $ 66,712 $ 77,490 $ 0 $ 251,512 Deposits 0 246,804 35,669 21,765 304,238 Six Months Ended June 30, 2020 (Dollars in millions) Credit Card Consumer Banking Commercial Banking (1) Other (1) Consolidated Total Net interest income $ 7,071 $ 3,322 $ 1,009 $ 83 $ 11,485 Non-interest income (loss) 1,756 223 418 (77 ) 2,320 Total net revenue (2) 8,827 3,545 1,427 6 13,805 Provision for credit losses 6,646 1,736 1,283 4 9,669 Non-interest expense 4,177 2,027 837 458 7,499 Loss from continuing operations before income taxes (1,996 ) (218 ) (693 ) (456 ) (3,363 ) Income tax benefit (472 ) (52 ) (164 ) (418 ) (1,106 ) Loss from continuing operations, net of tax $ (1,524 ) $ (166 ) $ (529 ) $ (38 ) $ (2,257 ) Loans held for investment $ 107,310 $ 66,712 $ 77,490 $ 0 $ 251,512 Deposits 0 246,804 35,669 21,765 304,238 Three Months Ended June 30, 2019 (Dollars in millions) Credit Card Consumer Banking Commercial Banking (1) Other (1) Consolidated Total Net interest income (loss) $ 3,531 $ 1,709 $ 514 $ (8 ) $ 5,746 Non-interest income (loss) 1,038 166 200 (26 ) 1,378 Total net revenue (loss) 4,569 1,875 714 (34 ) 7,124 Provision for credit losses 1,095 165 82 0 1,342 Non-interest expense 2,253 1,002 427 97 3,779 Income (loss) from continuing operations before income taxes 1,221 708 205 (131 ) 2,003 Income tax provision (benefit) 283 165 48 (109 ) 387 Income (loss) from continuing operations, net of tax $ 938 $ 543 $ 157 $ (22 ) $ 1,616 Loans held for investment $ 112,141 $ 60,327 $ 71,992 $ 0 $ 244,460 Deposits 0 205,220 30,761 18,554 254,535 Six Months Ended June 30, 2019 (Dollars in millions) Credit Card Consumer Banking Commercial Banking (1) Other (1) Consolidated Total Net interest income $ 7,121 $ 3,388 $ 1,003 $ 25 $ 11,537 Non-interest income (loss) 1,988 326 387 (31 ) 2,670 Total net revenue (loss) 9,109 3,714 1,390 (6 ) 14,207 Provision for credit losses 2,484 400 151 0 3,035 Non-interest expense 4,424 1,996 844 186 7,450 Income (loss) from continuing operations before income taxes 2,201 1,318 395 (192 ) 3,722 Income tax provision (benefit) 512 307 92 (215 ) 696 Income from continuing operations, net of tax $ 1,689 $ 1,011 $ 303 $ 23 $ 3,026 Loans held for investment $ 112,141 $ 60,327 $ 71,992 $ 0 $ 244,460 Deposits 0 205,220 30,761 18,554 254,535 __________ (1) Some of our commercial investments generate tax-exempt income, tax credits or other tax benefits. Accordingly, we present our Commercial Banking revenue and yields on a taxable-equivalent basis, calculated using the federal statutory tax rate of 21% and state taxes where applicable, with offsetting reductions to the Other category. (2) Total net revenue was reduced by $318 million and $707 million in the three and six months ended June 30, 2020 , respectively, for credit card finance charges and fees charged off as uncollectible. Revenue from Contracts with Customers The majority of our revenue from contracts with customers consists of interchange fees, service charges and other customer-related fees, and other contract revenue. Interchange fees are primarily from our Credit Card business and are recognized upon settlement with the interchange networks, net of rewards earned by customers. Service charges and other customer-related fees within our Consumer Banking business are primarily related to fees earned on consumer deposit accounts for account maintenance and various transaction-based services such as overdrafts and ATM usage. Service charges and other customer-related fees within our Commercial Banking business are mostly related to fees earned on treasury management and capital markets services. Other contract revenue in our Credit Card business consists primarily of revenue from our partnership arrangements. Other contract revenue in our Consumer Banking business consists primarily of revenue earned on certain marketing and promotional events from our auto dealers. Revenue from contracts with customers is included in non-interest income in our consolidated statements of income. The following table presents revenue from contracts with customers and a reconciliation to non-interest income by business segment for the three and six months ended June 30, 2020 and 2019 . Table 12.2 : Revenue from Contracts with Customers and Reconciliation to Segments Result Three Months Ended June 30, 2020 (Dollars in millions) Credit Card Consumer Banking Commercial Banking (1) Other (1) Consolidated Total Contract revenue: Interchange fees, net (2) $ 612 $ 48 $ 13 $ (1 ) $ 672 Service charges and other customer-related fees 0 31 43 (1 ) 73 Other 57 3 0 0 60 Total contract revenue 669 82 56 (2 ) 805 Revenue from other sources 176 15 124 (24 ) 291 Total non-interest income $ 845 $ 97 $ 180 $ (26 ) $ 1,096 Six Months Ended June 30, 2020 (Dollars in millions) Credit Card Consumer Banking Commercial Banking (1) Other (1) Consolidated Total Contract revenue: Interchange fees, net (2) $ 1,300 $ 98 $ 28 $ (2 ) $ 1,424 Service charges and other customer-related fees 0 95 74 (1 ) 168 Other 127 22 1 0 150 Total contract revenue 1,427 215 103 (3 ) 1,742 Revenue from other sources 329 8 315 (74 ) 578 Total non-interest income $ 1,756 $ 223 $ 418 $ (77 ) $ 2,320 Three Months Ended June 30, 2019 (Dollars in millions) Credit Card Consumer Banking Commercial Banking (1) Other (1) Consolidated Total Contract revenue: Interchange fees, net (2) $ 757 $ 52 $ 13 $ (2 ) $ 820 Service charges and other customer-related fees 0 74 28 0 102 Other 20 26 1 0 47 Total contract revenue 777 152 42 (2 ) 969 Revenue from other sources 261 14 158 (24 ) 409 Total non-interest income $ 1,038 $ 166 $ 200 $ (26 ) $ 1,378 Six Months Ended June 30, 2019 (Dollars in millions) Credit Card Consumer Banking Commercial Banking (1) Other (1) Consolidated Total Contract revenue: Interchange fees, net (2) $ 1,459 $ 98 $ 24 $ (3 ) $ 1,578 Service charges and other customer-related fees 0 149 53 0 202 Other 32 50 1 0 83 Total contract revenue 1,491 297 78 (3 ) 1,863 Revenue from other sources 497 29 309 (28 ) 807 Total non-interest income $ 1,988 $ 326 $ 387 $ (31 ) $ 2,670 __________ (1) Some of our commercial investments generate tax-exempt income, tax credits or other tax benefits. Accordingly, we present our Commercial Banking revenue and yields on a taxable-equivalent basis, calculated using the federal statutory tax rate of 21% and state taxes where applicable, with offsetting reductions to the Other category. (2) Interchange fees are presented net of customer reward expenses.

Commitments, Contingencies, Gua

Commitments, Contingencies, Guarantees, and Others	6 Months Ended
	Jun. 30, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments, Contingencies, Guarantees and Others	NOTE 13—COMMITMENTS, CONTINGENCIES, GUARANTEES AND OTHERS Commitments to Lend Our unfunded lending commitments primarily consist of credit card lines, loan commitments to customers of both our Commercial Banking and Consumer Banking businesses, as well as standby and commercial letters of credit. These commitments, other than credit card lines, are legally binding conditional agreements that have fixed expirations or termination dates and specified interest rates and purposes. The contractual amount of these commitments represents the maximum possible credit risk to us should the counterparty draw upon the commitment. We generally manage the potential risk of unfunded lending commitments by limiting the total amount of arrangements, monitoring the size and maturity structure of these portfolios, and applying the same credit standards for all of our credit activities. For unused credit card lines, we have not experienced and do not anticipate that all of our customers will access their entire available line at any given point in time. Commitments to extend credit other than credit card lines generally require customers to maintain certain credit standards. Collateral requirements and loan-to-value (“LTV”) ratios are the same as those for funded transactions and are established based on management’s credit assessment of the customer. These commitments may expire without being drawn upon; therefore, the total commitment amount does not necessarily represent future funding requirements. We also issue letters of credit, such as financial standby, performance standby and commercial letters of credit, to meet the financing needs of our customers. Standby letters of credit are conditional commitments issued by us to guarantee the performance of a customer to a third party in a borrowing arrangement. Commercial letters of credit are short-term commitments issued primarily to facilitate trade finance activities for customers and are generally collateralized by the goods being shipped to the customer. These collateral requirements are similar to those for funded transactions and are established based on management’s credit assessment of the customer. Management conducts regular reviews of all outstanding letters of credit and the results of these reviews are considered in assessing the adequacy of reserves for unfunded lending commitments. The following table presents the contractual amount and carrying value of our unfunded lending commitments as of June 30, 2020 and December 31, 2019 . The carrying value represents our reserve and deferred revenue on legally binding commitments. Table 13.1 : Unfunded Lending Commitments Contractual Amount Carrying Value (Dollars in millions) June 30, December 31, June 30, December 31, Credit card lines $ 365,410 $ 363,446 N/A N/A Other loan commitments (1) 32,631 36,454 $ 156 $ 110 Standby letters of credit and commercial letters of credit (2) 1,442 1,574 43 27 Total unfunded lending commitments $ 399,483 $ 401,474 $ 199 $ 137 __________ (1) Includes $1.5 billion and $1.6 billion of advised lines of credit as of June 30, 2020 and December 31, 2019 , respectively. (2) These financial guarantees have expiration dates ranging from 2020 to 2023 as of June 30, 2020 . Loss Sharing Agreements Within our Commercial Banking business, we originate multifamily commercial real estate loans with the intent to sell them to the GSEs. We enter into loss sharing agreements with the GSEs upon the sale of the loans. Beginning January 1, 2020, we elected the fair value option on new loss sharing agreements. Unrealized gains and losses are recorded in other non-interest income in our consolidated statements of income. For those loss sharing agreements entered into as of December 31, 2019, we amortize the liability recorded at inception into non-interest income as we are released from risk of payment under the loss sharing agreement and record our estimate of expected credit losses each period in provision for credit losses in our consolidated statements of income. The liability recognized on our consolidated balance sheets for these loss sharing agreements was $96 million and $75 million as of June 30, 2020 and December 31, 2019 , respectively. See “ Note 4—Allowance for Credit Losses and Reserve for Unfunded Lending Commitments ” for more information related to our c redit card partnership loss sharing arrangements. U.K. Payment Protection Insurance In the U.K., we previously sold payment protection insurance (“PPI”). In response to an elevated level of customer complaints across the industry, heightened media coverage and pressure from consumer advocacy groups, the U.K. Financial Conduct Authority (“FCA”), formerly the Financial Services Authority, investigated and raised concerns about the way the industry has handled complaints related to the sale of these insurance policies. For the past several years, the U.K.’s Financial Ombudsman Service (“FOS”) has been adjudicating customer complaints relating to PPI, escalated to it by consumers who disagree with the rejection of their complaint by firms, leading to customer remediation payments by us and others within the industry. In August 2017, the FCA issued final rules and guidance on the PPI complaints. This set the deadline for complaints as August 29, 2019. It also provided clarity on how to handle PPI complaints under s.140A of the Consumer Credit Act, including guidance on how redress for such complaints should be calculated. In determining our best estimate of incurred losses for future remediation payments, management considers numerous factors, including (i) the number of customer complaints or information requests still to be processed; (ii) our expectation of upholding those complaints; (iii) the expected number of complaints customers escalate to the FOS; (iv) our expectation of the FOS upholding such escalated complaints; (v) the number of complaints that fall under s.140A of the Consumer Credit Act; and (vi) the estimated remediation payout to customers. We monitor these factors each quarter and adjust our reserves to reflect the latest data. Our U.K. PPI reserve totaled $76 million and $188 million as of June 30, 2020 and December 31, 2019 , respectively. For the six months ended June 30, 2020 , no additions were made to the reserve. Our best estimate of reasonably possible future losses beyond our reserve as of June 30, 2020 is approximately $50 million . Litigation In accordance with the current accounting standards for loss contingencies, we establish reserves for litigation-related matters that arise from the ordinary course of our business activities when it is probable that a loss associated with a claim or proceeding has been incurred and the amount of the loss can be reasonably estimated. None of the amounts we currently have recorded individually or in the aggregate are considered to be material to our financial condition. Litigation claims and proceedings of all types are subject to many uncertain factors that generally cannot be predicted with assurance. Below we provide a description of potentially material legal proceedings and claims. For some of the matters disclosed below, we are able to estimate reasonably possible losses above existing reserves, and for other disclosed matters, such an estimate is not possible at this time. For those matters below where an estimate is possible, management currently estimates the reasonably possible future losses beyond our reserves as of June 30, 2020 are approximately $1.0 billion . Our reserve and reasonably possible loss estimates involve considerable judgment and reflect that there is still significant uncertainty regarding numerous factors that may impact the ultimate loss levels. Notwithstanding our attempt to estimate a reasonably possible range of loss beyond our current accrual levels for some litigation matters based on current information, it is possible that actual future losses will exceed both the current accrual level and the range of reasonably possible losses disclosed here. Given the inherent uncertainties involved in these matters, especially those involving governmental agencies, and the very large or indeterminate damages sought in some of these matters, there is significant uncertainty as to the ultimate liability we may incur from these litigation matters and an adverse outcome in one or more of these matters could be material to our results of operations or cash flows for any particular reporting period. Interchange In 2005, a putative class of retail merchants filed antitrust lawsuits against MasterCard and Visa and several issuing banks, including Capital One, seeking both injunctive relief and monetary damages for an alleged conspiracy by defendants to fix the level of interchange fees. Other merchants have asserted similar claims in separate lawsuits, and while these separate cases did not name any issuing banks, Visa, MasterCard and issuers, including Capital One, have entered settlement and judgment sharing agreements allocating the liabilities of any judgment or settlement arising from all interchange-related cases. The lawsuits were consolidated before the U.S. District Court for the Eastern District of New York for certain purposes and were settled in 2012. The class settlement, however, was invalidated by the United States Court of Appeals for the Second Circuit in June 2016, and the suit was bifurcated into separate class actions seeking injunctive and monetary relief, respectively. In addition, numerous merchant groups opted out of the 2012 settlement and have pursued their own claims. The claims by the injunctive relief class have not been resolved, but the settlement of $5.5 billion for the monetary damages class received final approval from the trial court, and has been appealed to the U.S. Court of Appeals for the Second Circuit. Visa and MasterCard have also settled a number of the opt-out cases, which required non-material payments from issuing banks, including Capital One. Visa created a litigation escrow account following its initial public offering of stock in 2008 that funds settlements for its member banks, and any settlements related to MasterCard-allocated losses have either already been paid or are reflected in our reserves. Mortgage Representation and Warranty We face residual exposure related to subsidiaries that originated residential mortgage loans and sold these loans to various purchasers, including purchasers who created securitization trusts. In connection with their sales of mortgage loans, these subsidiaries entered into agreements containing varying representations and warranties about, among other things, the ownership of the loan, the validity of the lien securing the loan, the loan’s compliance with any applicable criteria established by the purchaser, including underwriting guidelines and the existence of mortgage insurance, and the loan’s compliance with applicable federal, state and local laws. Each of these subsidiaries may be required to repurchase mortgage loans or indemnify certain purchasers and others against losses they incur in the event of certain breaches of these representations and warranties. The substantial majority of our representation and warranty exposure has been resolved through litigation, and our remaining representation and warranty exposure is almost entirely litigation-related. Accordingly, we establish litigation reserves for representation and warranty losses that we consider to be both probable and reasonably estimable. The reserve process relies heavily on estimates, which are inherently uncertain, and requires the application of judgment. Our reserves and estimates of reasonably possible losses could be impacted by claims which may be brought by securitization trustees and sponsors, bond-insurers, investors, and GSEs, as well as claims brought by governmental agencies. Anti-Money Laundering In October 2018, we paid a civil monetary penalty of $100 million to resolve the monetary component of a July 2015 Office of the Comptroller of the Currency (“OCC”) consent order relating to our anti-money laundering (“AML”) program. The OCC lifted the AML consent order in November 2019. The Department of Justice and the New York District Attorney’s Office have closed their investigations into certain former check casher clients of the Commercial Banking business and our AML program. We are in discussions with the Financial Crimes Enforcement Network (“FinCEN”) of the U.S. Department of Treasury to explore a potential regulatory resolution of its investigation into our AML program, which could include a monetary penalty. Cybersecurity Incident As a result of the Cybersecurity Incident announced on July 29, 2019, we are subject to numerous legal proceedings and other inquiries and could be the subject of additional proceedings and inquiries in the future. Consumer class actions . To date, we have been named as a defendant in approximately 73 putative consumer class action cases ( 61 in U.S. federal courts and 12 in Canadian courts) alleging harm from the Cybersecurity Incident and seeking various remedies, including monetary and injunctive relief. The lawsuits allege breach of contract, negligence, violations of various privacy laws and a variety of other legal causes of action. The U.S. consumer class actions have been consolidated for pretrial proceedings before a multi-district litigation (“MDL”) panel in the U.S. District Court for the Eastern District of Virginia, Alexandria Division. Securities class action . The Company and certain officers have also been named as defendants in a putative class action pending in the MDL alleging violations of certain federal securities laws in connection with statements and alleged omissions in securities filings relating to our information security standards and practices. The complaint seeks certification of a class of all persons who purchased or otherwise acquired Capital One securities from July 23, 2015 to July 29, 2019, as well as unspecified monetary damages, costs and other relief. Governmental inquiries . We have received inquiries and requests for information relating to the Cybersecurity Incident from Congress, federal banking regulators, relevant Canadian regulators, the Department of Justice, and the offices of approximately fourteen state Attorneys General. We are cooperating with these offices and responding to their inquiries. In August 2020, we entered into consent orders with the Federal Reserve Board of Governors and the OCC resulting from regulatory reviews of the Cybersecurity Incident and relating to ongoing enhancements of our cybersecurity and operational risk management processes. Capital One will pay a $80 million penalty to the U.S. Treasury as part of the OCC agreement, which has been fully accrued as of June 30, 2020. The Federal Reserve Board agreement does not contain a monetary penalty. Taxi Medallion Finance Investigations Beginning in 2019, we have received subpoenas from the New York Attorney General’s office and from the U.S. Attorney’s Office for the Southern District of New York, Civil and Criminal Divisions, relating to investigations of the taxi medallion finance industry we exited beginning in 2015. The subpoenas seek, among other things, information regarding our lending counterparties and practices. We are cooperating with these investigations. U.K. PPI Litigation Some of the claimants in the U.K. PPI regulatory claims process described above have initiated legal proceedings. The significant increase in PPI regulatory claim volumes shortly before the August 29, 2019 claims submission deadline increases the potential exposure for PPI-related litigation, which is not subject to the August 29, 2019 deadline. Other Pending and Threatened Litigation In addition, we are commonly subject to various pending and threatened legal actions relating to the conduct of our normal business activities. In the opinion of management, the ultimate aggregate liability, if any, arising out of all such other pending or threatened legal actions, is not expected to be material to our consolidated financial position or our results of operations.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2020
Accounting Policies [Abstract]
Basis of Presentation	The accompanying unaudited interim consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the U.S. (“U.S. GAAP”).
Use of Estimates	The preparation of the consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and in the related disclosures. These estimates are based on information available as of the date of the consolidated financial statements. While management makes its best judgments, actual amounts or results could differ from these estimates. In the opinion of management, all normal, recurring adjustments have been included for a fair statement of this interim financial information. Certain prior period amounts have been reclassified to conform to the current period presentation.
Income Taxes	Income Taxes Our effective tax rates in the second quarter and first six months of 2020 were computed utilizing the estimated annual effective tax rate method and were driven by the relationship of our tax credits in proportion to our pre-tax earnings. We changed our methodology from the year-to-date method utilized in the first quarter of 2020 due to passage of time as we recorded two quarters of actual results that reduced forecast variability for the remainder of the year.
Investment Securities	Investment Securities We classify securities as available for sale or held to maturity based on our investment strategy and management’s assessment of our intent and ability to hold the securities until maturity. We did not have any securities that were classified as held to maturity as of June 30, 2020. We report securities available for sale on our consolidated balance sheets at fair value. The amortized cost of investment securities reflects the amount for which the security was acquired, adjusted for accrued interest, amortization of premiums, discounts, and net deferred fees and costs, collection of cash, and charge-offs. We elect to present accrued interest for securities available for sale within interest receivable on our consolidated balance sheets. Unrealized gains or losses are recorded, net of tax, as a component of accumulated other comprehensive income (“AOCI”). Unamortized premiums, discounts and other basis adjustments for available for sale securities are recognized in interest income over the contractual lives of the securities using the effective interest method. We record purchases and sales of investment securities available for sale on a trade date basis. Realized gains or losses from the sale of debt securities are computed using the first-in first-out method of identification, and are included in non-interest income in our consolidated statements of income. An individual debt security is impaired when the fair value of the security is less than its amortized cost. If we intend to sell an available for sale security in an unrealized loss position or it is more likely than not that we will be required to sell the security prior to recovery of its amortized cost basis, any allowance for credit losses is reversed through our provision for credit losses and the difference between the amortized cost basis of the security and its fair value is recognized in our consolidated statements of income. For impaired debt securities that we have both the intent and ability to hold, the securities are evaluated to determine if a credit loss exists. The allowance for credit losses on our investment securities is recognized through our provision for credit losses and limited by the unrealized losses of a security measured as the difference between the security’s amortized cost and fair value. See further discussion below under the “Allowance for Credit Losses - Available for Sale Investment Securities” section of this Note. Our investment portfolio also includes certain debt securities that, at the time of purchase, had experienced a more-than-insignificant deterioration in credit quality since origination. Such debt securities are accounted for in accordance with accounting guidance for purchased financial assets with credit deterioration and are herein referred to as purchased credit-deteriorated (“PCD”) securities. PCD securities require the recognition of an allowance for credit losses at the time of acquisition. The allowance for credit losses is not recognized in earnings. Instead, the purchase price and the initial allowance collectively represent the amortized cost basis of a PCD security. Any noncredit discount or premium at the date of acquisition is amortized into interest income over the remaining life of the security. Subsequent to the date of purchase, we re-measure the allowance for credit losses on the amortized cost basis using the same policies as for other debt securities available for sale and changes are recognized through our provision for credit losses. See further discussion below under the “Allowance for Credit Losses - Available for Sale Investment Securities” section of this Note. We charge off any portion of an investment security that we determine is uncollectible. The amortized cost basis, excluding accrued interest, is charged off through the allowance for credit losses. Accrued interest is charged off as a reduction to interest income. Recoveries of previously charged off principal amounts are recognized in our provision for credit losses when received.
Loans	Loans Our loan portfolio consists of loans held for investment, including loans underlying our consolidated securitization trusts, and loans held for sale and is divided into three portfolio segments: credit card, consumer banking and commercial banking loans. Credit card loans consist of domestic and international credit card loans. Consumer banking loans consist of auto and retail banking loans. Commercial banking loans consist of commercial and multifamily real estate as well as commercial and industrial loans. Loan Classification Upon origination or purchase, we classify loans as held for investment or held for sale based on our investment strategy and management’s intent and ability with regard to the loans, which may change over time. The accounting and measurement framework for loans differs depending on the loan classification, whether we elect the fair value option, whether the loans are originated or purchased and whether purchased loans are considered to have experienced a more-than-insignificant deterioration in credit quality since origination. The presentation within the consolidated statements of cash flows is based on management’s intent at acquisition or origination. Cash flows related to loans that are acquired or originated with the intent to hold for investment are included in cash flows from investing activities on our consolidated statements of cash flows. Cash flows related to loans that are acquired or originated with the intent to sell are included in cash flows from operating activities on our consolidated statements of cash flows. Loans Held for Investment Loans that we have the ability and intent to hold for the foreseeable future and loans associated with consolidated securitization transactions are classified as held for investment. Loans classified as held for investment, except for credit card loans, are reported at their amortized cost basis, excluding accrued interest. For these loans, we elect to present accrued interest within interest receivable in our consolidated balance sheets. For credit card loans, billed finance charges and fees are included in loans held for investment. Unbilled finance charges and fees on credit card loans are included in interest receivable. Interest income is recognized on performing loans held for investment on an accrual basis. We defer loan origination fees and direct loan origination costs on originated loans, premiums and discounts on purchased loans and loan commitment fees. We recognize these amounts in interest income as yield adjustments over the life of the loan and/or commitment period using the effective interest method. For credit card loans, loan origination fees and direct loan origination costs are amortized on a straight-line basis over a 12 -month period. The amortized cost of loans held for investment is subject to our allowance for credit losses methodology described below under the “Allowance for Credit Losses - Loans Held for Investment” section of this Note. Loans Held for Sale Loans purchased or originated with the intent to sell or for which we do not have the ability and intent to hold for the foreseeable future are classified as held for sale. Multifamily commercial real estate loans originated with the intent to sell to government-sponsored enterprises are accounted for under the fair value option. We elect the fair value option on these loans as part of our management of interest rate risk with corresponding forward sale commitments. Loan origination fees and direct loan origination costs are recognized as incurred and are reported in other non-interest income in the consolidated statements of income. Interest income is calculated based on the loan's stated rate of interest and is reported in interest income in the consolidated statements of income. Fair value adjustments are recorded in other non-interest income in the consolidated statements of income. All other loans classified as held for sale are recorded at the lower of cost or fair value. Loan origination fees, direct loan origination costs and any discounts and premiums are deferred until the loan is sold and are then recognized as part of the total gain or loss on sale. The fair value of loans held for sale is determined on an aggregate portfolio basis for each loan type. Fair value adjustments are recorded in other non-interest income in the consolidated statements of income. If a loan is transferred from held for investment to held for sale, then on the transfer date, any decline in fair value related to credit is recorded as a charge-off and any allowance for credit losses is reversed through our provision for credit losses. The loan is then reclassified to held for sale at its amortized cost at the date of the transfer. A valuation allowance is established, if needed, such that the loan held for sale is recorded at the lower of cost or fair value. Subsequent to transfer, we report write-downs or recoveries in fair value up to the carrying value at the date of transfer and realized gains or losses on loans held for sale in our consolidated statements of income as a component of other non-interest income. We calculate the gain or loss on loan sales as the difference between the proceeds received and the carrying value of the loans sold, net of the fair value of any residual interests retained. Loans Acquired All purchased loans, including loans transferred in a business combination, are initially recorded at fair value, which includes consideration of expected future losses, as of the date of the acquisition. To determine the fair value of loans at acquisition, we estimate discounted contractual cash flows due using an observable market rate of interest, when available, adjusted for factors that a market participant would consider in determining fair value. In determining fair value, contractual cash flows are adjusted to include prepayment estimates based upon historical payment trends, forecasted default rates and loss severities and other relevant factors. The difference between the fair value and the contractual cash flows is recorded as a loan premium or discount, which may relate to either credit or non-credit factors, at acquisition. We account for purchased loans under the accounting guidance for purchased financial assets with credit deterioration when, at the time of purchase, the loans have experienced a more-than-insignificant deterioration in credit quality since origination. We also account for loans under this guidance when the loans were previously accounted for under the accounting guidance for purchased credit impaired loans and debt securities (“PCI”) prior to our adoption of Accounting Standards Codification (“ASC”) 326, Financial Instruments - Credit Losses , on January 1, 2020. We refer to these loans which are accounted for under accounting guidance for purchased financial assets with more-than-insignificant deterioration in credit quality since origination as “PCD loans”. We recognize an allowance for credit losses on purchased loans that have not experienced a more-than-insignificant deterioration in credit quality since origination at the time of purchase through earnings in a manner that is consistent with originated loans. The policies relating to the allowance for credit losses on loans is described below in the “Allowance for Credit Losses - Loans Held for Investment” section of this Note. Loan Modifications and Restructurings As part of our loss mitigation efforts, we may provide modifications to a borrower experiencing financial difficulty to improve long-term collectability of the loan and to avoid the need for foreclosure or repossession of collateral, if any. Our loan modifications typically include short-term payment deferrals, an extension of the loan term, a reduction in the interest rate, a reduction in the loan balance, or a combination of these concessions. A loan modification in which a concession is granted to a borrower experiencing financial difficulty is accounted for and reported as a troubled debt restructuring (“TDR”). See “ Note 3—Loans ” for additional information on our loan modifications and restructurings, including those in response to the COVID-19 pandemic. Delinquent and Nonperforming Loans The entire balance of a loan is considered contractually delinquent if the minimum required payment is not received by the first statement cycle date equal to or following the due date specified on the customer’s billing statement. Delinquency is reported on loans that are 30 or more days past due. Interest and fees continue to accrue on past due loans until the date the loan is placed on nonaccrual status, if applicable. For loan modifications, delinquency and nonaccrual status are reported in accordance with the revised terms of the loans. We generally place loans on nonaccrual status when we believe the collectability of interest and principal is not reasonably assured. Nonperforming loans generally include loans that have been placed on nonaccrual status. We do not report loans classified as held for sale as nonperforming. Our policies for classifying loans as nonperforming, by loan category, are as follows: • Credit card loans: As permitted by regulatory guidance issued by the Federal Financial Institutions Examination Council (“FFIEC”), our policy is generally to exempt credit card loans from being classified as nonperforming, as these loans are generally charged off in the period the account becomes 180 days past due. Consistent with industry conventions, we generally continue to accrue interest and fees on delinquent credit card loans until the loans are charged off. • Consumer banking loans: We classify consumer banking loans as nonperforming when we determine that the collectability of all interest and principal on the loan is not reasonably assured, generally when the loan becomes 90 days past due. • Commercial banking loans : We classify commercial banking loans as nonperforming as of the date we determine that the collectability of all interest and principal on the loan is not reasonably assured. • Modified loans and troubled debt restructurings: Modified loans, including TDRs, that are current at the time of the restructuring remain on accrual status if there is demonstrated performance prior to the restructuring and continued performance under the modified terms is expected. Otherwise, the modified loan is classified as nonperforming. Interest and fees accrued but not collected at the date a loan is placed on nonaccrual status are reversed against earnings. In addition, the amortization of deferred loan fees, costs, premiums and discounts is suspended. Interest and fee income are subsequently recognized only upon the receipt of cash payments. However, if there is doubt regarding the ultimate collectability of loan principal, cash received is generally applied against the principal balance of the loan. Nonaccrual loans are generally returned to accrual status when all principal and interest is current and repayment of the remaining contractual principal and interest is reasonably assured, or when the loan is both well-secured and in the process of collection and collectability is no longer doubtful. Charge-Offs - Loans We charge off loans when we determine that the loan is uncollectible. The amortized cost basis, excluding accrued interest, is charged off as a reduction to the allowance for credit losses based on the time frames presented below. Accrued interest on loans other than credit card loans determined to be uncollectible is reversed as a reduction of interest income when the loan is classified as nonperforming. For credit card loans, accrued interest is charged off simultaneously with the charge off of other components of amortized cost and as a reduction of interest income. When received, recoveries of previously charged off amounts are recorded as an increase to the allowance for credit losses (see the “Allowance for Credit Losses - Loans Held for Investment” section of this Note for information on how we account for expected recoveries). Costs to recover charged off loans are recorded as collection expense and included in our consolidated statements of income as a component of other non-interest expense as incurred. Our charge-off time frames by loan type are presented below. • Credit card loans : We generally charge off credit card loans in the period the account becomes 180 days past due. We charge off delinquent credit card loans for which revolving privileges have been revoked as part of loan workout when the account becomes 120 days past due. Credit card loans in bankruptcy are generally charged off by the end of the month following 30 days after the receipt of a complete bankruptcy notification from the bankruptcy court. Credit card loans of deceased account holders are generally charged off 5 days after receipt of notification. • Consumer banking loans: We generally charge off consumer banking loans at the earlier of the date when the account is a specified number of days past due or upon repossession of the underlying collateral. Our charge-off period for auto loans is 120 days past due. Small business banking loans generally charge off at 120 days past due based on the date the amortized cost basis is deemed uncollectible. Auto loans that have not been previously charged off where the borrower has filed for bankruptcy and the loan has not been reaffirmed charge off in the period that the loan is 60 days from the bankruptcy notification date, regardless of delinquency status. Auto loans that have not been previously charged off and have been discharged under Chapter 7 bankruptcy are charged off at the end of the month in which the bankruptcy discharge occurs. Remaining consumer loans generally are charged off within 40 days of receipt of notification from the bankruptcy court. Consumer loans of deceased account holders are charged off by the end of the month following 60 days of receipt of notification. • Commercial banking loans: We charge off commercial loans in the period we determine that the amortized cost basis is uncollectible.
Allowance for Loan and Lease Losses	Allowance for Credit Losses We maintain an allowance for credit losses (“allowance”) that represents management’s current estimate of expected credit losses over the contractual terms of our loans held for investment and investment securities classified as available for sale. We measure the allowance on a quarterly basis through consideration of past events, including historical experience, current conditions, and reasonable and supportable forecasts. Allowance for Credit Losses - Loans Held for Investment We measure current expected credit losses over the contractual terms of our loans. The contractual terms are adjusted for expected prepayments but are not extended for renewals or extensions, except when an extension or renewal arises from a borrower option that is not unconditionally cancellable or through a TDR that is reasonably expected to occur. We aggregate loans sharing similar risk characteristics into pools for purposes of measuring expected credit losses. Pools are reassessed periodically to confirm that all loans within each pool continue to share similar risk characteristics. Expected credit losses for loans that do not share similar risk characteristics with other financial assets are measured individually. Expected recoveries of amounts previously charged off or expected to be charged off are recognized within the allowance, with a corresponding reduction to our provision for credit losses. At times expected recoveries may result in a negative allowance. We limit the allowance to amounts previously charged off and expected to be charged off. Charge-offs of uncollectible amounts result in a reduction to the allowance and recoveries of previously charged off amounts result in an increase to the allowance. When developing an estimate of expected credit losses, we use both quantitative and qualitative methods in considering all available information relevant to assessing collectability. This may include internal information, external information, or a combination of both relating to past events, current conditions, and reasonable and supportable forecasts. Significant judgment is applied to the development and duration of reasonable and supportable forecasts used in our estimation of lifetime losses. We estimate expected credit losses over the duration of those forecasts and then revert, on a rational and systematic basis, to historical losses at each relevant loss component of the estimate. Expected losses for contractual terms extending beyond the reasonable and supportable forecast and reversion periods are based on those historical losses. Management will consider and may qualitatively adjust for conditions, changes, and trends in loan portfolios that may not be captured in modeled results. These adjustments are referred to as qualitative factors and represent management’s judgment of the imprecision and risks inherent in the processes and assumptions used in establishing the allowance for credit losses. Management’s judgment may involve an assessment of current and forward-looking conditions including but not limited to changes in lending policies and procedures, nature and volume of the portfolio, external factors, and uncertainty as it relates to economic, model or forecast risks, where not already captured in the modeled results. Expected credit losses for collateral-dependent loans are based on the fair value of the underlying collateral. When we intend to liquidate the collateral, the fair value of the collateral is adjusted for expected costs to sell. A loan is deemed to be a collateral-dependent loan when (i) we determine foreclosure or repossession of the underlying collateral is probable, or (ii) foreclosure or repossession is not probable, but the borrower is experiencing financial difficulty and we expect repayment to be provided substantially through the operation or sale of the collateral. The allowance for a collateral-dependent loan reflects the difference between the loan’s amortized cost basis and the fair value (less selling costs, where applicable) of the loan's underlying collateral. Our credit card and consumer banking loan portfolios consist of smaller-balance, homogeneous loans. The consumer banking loan portfolio is divided into two primary portfolio segments: auto loans and retail banking loans. The credit card and consumer banking loan portfolios are further divided by our business units into groups based on common risk characteristics, such as origination year, contract type, interest rate, credit bureau score and geography. The commercial banking loan portfolio is primarily composed of larger-balance, non-homogeneous loans. These loans are subject to reviews that result in internal risk ratings. In assessing the risk rating of a particular commercial banking loan, among the factors we consider are the financial condition of the borrower, geography, collateral performance, historical loss experience and industry-specific information that management believes is relevant in determining and measuring expected credit losses. Subjective assessment and interpretation are involved. Emphasizing one factor over another or considering additional factors could impact the risk rating assigned to that commercial banking loan. For consumer banking and commercial banking loans, the contractual period typically does not include renewals or extensions because the renewals and extensions are generally not at the borrower’s exclusive option to exercise. Management has determined that the undrawn credit exposure that is associated with our credit card loans is unconditionally cancellable. For this reason, expected credit losses are measured based on the drawn balance at each quarterly measurement date, but not on the undrawn exposure. Because credit card loans do not have a defined contractual life, management estimates both the volume and application of payments to determine a contractual life of the drawn balance at the measurement date over which expected credit losses are developed for credit card loans. With the exception of credit card loans, we have made a policy election to not measure an allowance on accrued interest for loans held for investment because we reverse uncollectible accrued interest in a timely manner. See the “Delinquent and Nonperforming Loans” and “Charge-Offs - Loans” sections of this Note for information on what we consider timely. For credit card loans, we do not make this election, as we reserve for uncollectible accrued interest relating to credit card loans in the allowance. The allowance related to credit card and consumer banking loans assessed on a pooled basis is based on a modeled calculation, which is supplemented by management judgment as described above. Because of the homogeneous nature of our consumer loan portfolios, the allowance is based on the aggregated portfolio segment evaluations. The allowance is established through a process that begins with estimates of historical losses in each pool based upon various statistical analyses, with adjustments for current conditions and reasonable and supportable forecasts of conditions, which includes expected economic conditions. Loss forecast models are utilized to estimate expected credit losses and consider several portfolio indicators including, but not limited to, expected economic conditions, historical loss experience, account seasoning, the value of collateral underlying secured loans, estimated foreclosures or defaults based on observable trends, delinquencies, bankruptcy filings, unemployment, credit bureau scores and general business trends. Management believes these factors are relevant in estimating expected credit losses and also considers an evaluation of overall portfolio credit quality based on indicators such as changes in our credit evaluation, underwriting and collection management policies, the effect of other external factors such as competition and legal and regulatory requirements, general economic conditions and business trends, and uncertainties in forecasting and modeling techniques used in estimating our allowance. The allowance related to commercial banking loans assessed on a pooled basis is based on our historical loss experience for loans with similar risk characteristics and consideration of the current credit quality of the portfolio, which is supplemented by management judgment as described above. These are adjusted for current conditions, and reasonable and supportable forecasts of conditions likely to cause future losses which vary from historical levels. We apply internal risk ratings to commercial banking loans, which we use to assess credit quality and derive a total loss estimate based on an estimated probability of default (“default rate”) and loss given default (“loss severity”). Management may also apply judgment to adjust the loss factors derived, taking into consideration both quantitative and qualitative factors, including general economic conditions, industry-specific and geographic trends, portfolio concentrations, trends in internal credit quality indicators, and current and past underwriting standards that have occurred but are not yet reflected in the historical data underlying our loss estimates. The allowance related to smaller-balance homogeneous credit card and consumer banking loans whose terms have been modified in a TDR is calculated on a pool basis using historical loss experience, adjusted for current conditions and reasonable and supportable forecasts of conditions likely to cause future losses which vary from historical levels for the respective class of assets. The allowance related to consumer banking loans that are assessed at a loan-level is determined based on key considerations that include the borrower’s overall financial condition, resources and payment history, prospects for support from financially responsible guarantors, and when applicable, the estimated realizable value of any collateral. The allowance related to commercial banking loans that are assessed at a loan-level is generally determined in accordance with our policy for estimating expected credit losses for collateral-dependent loans as described above. Off-balance sheet credit exposures In addition to the allowance, we also measure expected credit losses related to unfunded lending commitments that are not unconditionally cancellable in our Commercial Banking business. This reserve is measured using the same measurement objectives as the allowance for loans held for investment and is recorded within other liabilities on our consolidated balance sheets. These commitments are segregated by risk according to our internal risk rating scale, which we use to assess credit quality and derive an expected credit loss estimate. We assess these risk classifications, taking into consideration both quantitative and qualitative factors, including historical loss experience, adjusted for current conditions and reasonable and supportable forecasts of conditions likely to cause future losses which vary from historical levels, and utilization assumptions to estimate the reserve for unfunded lending commitments. Expected credit losses are not measured on unfunded lending commitments that are unconditionally cancellable, including all of our unfunded credit card and consumer banking lending commitments and certain of our unfunded commercial banking lending commitments. Determining the appropriateness of the allowance and the reserve for unfunded lending commitments is complex and requires judgment by management about the effect of matters that are inherently uncertain. Subsequent evaluations of the loan portfolio, in light of the factors then prevailing, may result in significant changes in the reserve for unfunded lending commitments in future periods. See “ Note 4—Allowance for Credit Losses and Reserve for Unfunded Lending Commitments ” for additional information. Allowance for Credit Losses - Available for Sale Investment Securities When an investment security available for sale is impaired due to credit factors, we recognize a provision for credit losses on our consolidated statements of income and an allowance for credit losses on the consolidated balance sheet. Credit losses recognized in the allowance for credit losses are limited to the amount by which the investment security’s amortized cost basis exceeds its fair value. Investment securities in unrealized gain positions do not have an allowance for credit losses as the investment security could be sold at its fair value to prevent realization of credit losses. We exclude accrued interest from the fair value and amortized cost basis of an investment security for purposes of measuring impairment. Charge-offs of uncollectible amounts of investment securities are deducted from the allowance for credit losses. For certain of our securities available for sale, we have determined that there is no risk of impairment due to credit factors. These investment securities include high quality debt instruments that are issued and guaranteed by the United States government and its agencies or are issued through certain government-sponsored enterprises. Management performs periodic assessments to reevaluate this conclusion by considering any changes in historical losses, current conditions, and reasonable and supportable forecasts. We evaluate impairment on a quarterly basis at the individual security level and determine whether any portion of the decline in fair value is due to a credit loss. We make this determination through the use of quantitative and qualitative analyses. Our qualitative analysis includes factors such as the extent to which fair value is less than amortized cost, any changes in the security’s credit rating, past defaults or delayed payments, and adverse conditions impacting the security or issuer. A credit loss exists to the extent that management does not expect to recover the amortized cost basis. For investment securities which require further assessment, we perform a quantitative analysis using a discounted cash flow methodology and compare the present value of expected future cash flows from the security available for sale to the security’s amortized cost basis. Projected future cash flows reflect management’s best estimate and is based on our understanding of past events, current conditions, reasonable and supportable forecasts, and are discounted by the security’s effective interest rate adjusted for expected prepayments. The allowance for credit losses for investment securities reflects the difference by which the amortized cost basis exceeds the present value of future cash flows and is limited to the amount by which the security’s amortized cost exceeds its fair value. See “ Note 2—Investment Securities ” for additional information.
Revenue Recognition	Revenue Recognition Interest Income and Fees Interest income and fees on loans and investment securities are recognized based on the contractual provisions of the underlying arrangements. Loan origination fees and costs and premiums and discounts on loans held for investment are deferred and generally amortized into interest income as yield adjustments over the contractual life and/or commitment period using the effective interest method. Costs deferred include direct origination costs such as bounties paid to third parties for new accounts and incentives paid to our network of auto dealers for loan referrals. In certain circumstances, we elect to factor prepayment estimates into the calculation of the constant effective yield necessary to apply the interest method. Prepayment estimates are based on historical prepayment data, existing and forecasted interest rates, and economic data. For credit card loans, loan origination fees and direct loan origination costs are amortized on a straight-line basis over a 12 -month period. Unamortized premiums, discounts and other basis adjustments on investment securities are recognized in interest income over the contractual lives of the securities using the effective interest method. Finance charges and fees on credit card loans are recorded in revenue when earned. Billed finance charges and fees on credit card loans are included in loan receivables. Unbilled finance charges and fees on credit card loans are included in interest receivable on our consolidated balance sheets. Annual membership fees are classified as service charges and other customer-related fees on our consolidated statements of income and are deferred and amortized into income over 12 months on a straight-line basis. We continue to accrue finance charges and fees on credit card loans until the account is charged off.
Offsetting of Financial Assets and Liabilities	Balance Sheet Offsetting of Financial Assets and Liabilities Derivative contracts and repurchase agreements that we execute bilaterally in the OTC market are generally governed by enforceable master netting arrangements where we generally have the right to offset exposure with the same counterparty. Either counterparty can generally request to net settle all contracts through a single payment upon default on, or termination of, any one contract. We elect to offset the derivative assets and liabilities under master netting arrangements for balance sheet presentation where a right of setoff exists. For derivative contracts entered into under master netting arrangements for which we have not been able to confirm the enforceability of the setoff rights, or those not subject to master netting arrangements, we do not offset our derivative positions for balance sheet presentation.
New Accounting Standards	Newly Adopted Accounting Standards During the Six Months Ended June 30, 2020 Standard Guidance Adoption Timing and Financial Statement Impacts Cloud Computing ASU No. 2018-15, Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract Issued August 2018 Aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal-use software license). We adopted this guidance in the first quarter of 2020 using the prospective method of adoption. Our adoption of this standard did not have a material impact on our consolidated financial statements. Goodwill Impairment Test Simplification ASU No. 2017-04, Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment Issued January 2017 Historical guidance for goodwill impairment testing prescribed that the company must compare each reporting unit’s carrying value to its fair value. If the carrying value exceeds fair value, an entity performs the second step, which assigns the reporting unit’s fair value to its assets and liabilities, including unrecognized assets and liabilities, in the same manner as required in purchase accounting and then records an impairment. This ASU eliminates the second step. Under the new guidance, an impairment of a reporting unit’s goodwill is determined based on the amount by which the reporting unit’s carrying value exceeds its fair value, limited to the amount of goodwill allocated to the reporting unit. We adopted this guidance in the first quarter of 2020 using the prospective method of adoption. Our adoption of this standard did not have a material impact on our consolidated financial statements. Current Expected Credit Loss (“CECL”) ASU No. 2016-13, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments Issued June 2016 Requires use of the current expected credit loss model that is based on expected losses (net of expected recoveries), rather than incurred losses, to determine our allowance for credit losses on financial assets measured at amortized cost, certain net investments in leases and certain off-balance sheet arrangements. Replaces current accounting for purchased credit-impaired (“PCI”) and impaired loans. Amends the other-than-temporary impairment model for available for sale debt securities. The new guidance requires that credit losses be recorded through an allowance approach, rather than through permanent write-downs for credit losses and subsequent accretion of positive changes through interest income over time. We adopted this guidance in the first quarter of 2020, using the modified retrospective method of adoption. Upon adoption, we recorded an increase to our reserves for credit losses of $2.9 billion, an increase to our deferred tax assets of $694 million, and a decrease to our retained earnings of $2.2 billion. Additionally, we made a prospective change to present our finance charge and fee reserve as a component of our allowance for credit losses instead of as an offset to our loans held for investment. This balance sheet reclassification increased our allowance for credit losses, with a corresponding increase to our loans held for investment by $462 million as of January 1, 2020.

Investment Securities (Tables)

Investment Securities (Tables)	6 Months Ended
	Jun. 30, 2020
Investments, Debt and Equity Securities [Abstract]
Schedule of Available-for-Sale Securities	The table below presents the amortized cost, gross unrealized gains and losses, and fair value of securities available for sale as of June 30, 2020 and December 31, 2019 . Accrued interest receivable of $233 million as of June 30, 2020 is not included in the below table. Table 2.1 : Investment Securities Available for Sale June 30, 2020 (Dollars in millions) Amortized Cost Allowance for Credit Losses Gross Unrealized Gains Gross Unrealized Losses Fair Value Investment securities available for sale: U.S. Treasury securities $ 4,353 $ 0 $ 12 $ (3 ) $ 4,362 RMBS: Agency 68,223 0 2,541 (77 ) 70,687 Non-agency 1,144 (3 ) 187 (1 ) 1,327 Total RMBS 69,367 (3 ) 2,728 (78 ) 72,014 Agency CMBS 9,940 0 469 (9 ) 10,400 Other securities (1) 1,082 0 2 (1 ) 1,083 Total investment securities available for sale $ 84,742 $ (3 ) $ 3,211 $ (91 ) $ 87,859 December 31, 2019 (Dollars in millions) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Investment securities available for sale: U.S. Treasury securities $ 4,122 $ 6 $ (4 ) $ 4,124 RMBS: Agency 62,003 1,120 (284 ) 62,839 Non-agency 1,235 266 (2 ) 1,499 Total RMBS 63,238 1,386 (286 ) 64,338 Agency CMBS 9,303 165 (42 ) 9,426 Other securities (1) 1,321 4 0 1,325 Total investment securities available for sale $ 77,984 $ 1,561 $ (332 ) $ 79,213 __________ (1) Includes primarily supranational bonds, foreign government bonds and other asset-backed securities.
Schedule of Available-for-Sale Securities in Gross Unrealized Loss Position	The table below provides the gross unrealized losses and fair value of our securities available for sale aggregated by major security type and the length of time that individual securities have been in a continuous unrealized loss position as of June 30, 2020 and December 31, 2019 . The amounts as of June 30, 2020 only include securities available for sale without an allowance for credit losses. Table 2.2 : Securities in a Gross Unrealized Loss Position June 30, 2020 Less than 12 Months 12 Months or Longer Total (Dollars in millions) Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Investment securities available for sale without an allowance for credit losses: U.S. Treasury securities $ 2,812 $ (3 ) $ 0 $ 0 $ 2,812 $ (3 ) RMBS: Agency 2,732 (30 ) 3,210 (47 ) 5,942 (77 ) Non-agency 14 0 2 0 16 0 Total RMBS 2,746 (30 ) 3,212 (47 ) 5,958 (77 ) Agency CMBS 644 (3 ) 724 (6 ) 1,368 (9 ) Other securities (1) 677 (1 ) 5 0 682 (1 ) Total investment securities available for sale in a gross unrealized loss position without an allowance for credit losses (2) $ 6,879 $ (37 ) $ 3,941 $ (53 ) $ 10,820 $ (90 ) December 31, 2019 Less than 12 Months 12 Months or Longer Total (Dollars in millions) Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Investment securities available for sale: U.S. Treasury securities $ 2,647 $ (4 ) $ 0 $ 0 $ 2,647 $ (4 ) RMBS: Agency 10,494 (92 ) 10,567 (192 ) 21,061 (284 ) Non-agency 35 (1 ) 16 (1 ) 51 (2 ) Total RMBS 10,529 (93 ) 10,583 (193 ) 21,112 (286 ) Agency CMBS 2,580 (23 ) 1,563 (19 ) 4,143 (42 ) Other securities (1) 126 0 106 0 232 0 Total investment securities available for sale in a gross unrealized loss position $ 15,882 $ (120 ) $ 12,252 $ (212 ) $ 28,134 $ (332 ) __________ (1) Includes primarily supranational bonds,foreign government bonds, and other asset-backed securities. (2) Consists of approximately 350 securities in gross unrealized loss positions as of June 30, 2020 .
Schedule of Contractual Maturities for Securities	The table below summarizes, by major security type, the contractual maturities and weighted-average yields of our investment securities as of June 30, 2020 . Because borrowers may have the right to call or prepay certain obligations, the expected maturities of our securities are likely to differ from the scheduled contractual maturities presented below. The weighted-average yield below represents the effective yield for the investment securities and is calculated based on the amortized cost of each security. Table 2.3 : Contractual Maturities and Weighted-Average Yields of Securities June 30, 2020 (Dollars in millions) Due in 1 Year or Less Due > 1 Year through 5 Years Due > 5 Years through 10 Years Due > 10 Years Total Fair value of securities available for sale: U.S. Treasury securities $ 0 $ 4,362 $ 0 $ 0 $ 4,362 RMBS (1) : Agency 0 82 963 69,642 70,687 Non-agency 0 0 0 1,327 1,327 Total RMBS 0 82 963 70,969 72,014 Agency CMBS (1) 6 2,550 4,262 3,582 10,400 Other securities 265 534 284 0 1,083 Total securities available for sale $ 271 $ 7,528 $ 5,509 $ 74,551 $ 87,859 Amortized cost of securities available for sale $ 270 $ 7,486 $ 5,271 $ 71,715 $ 84,742 Weighted-average yield for securities available for sale 1.15 % 1.52 % 2.38 % 2.61 % 2.49 % __________ (1) As of June 30, 2020 , the weighted-average expected maturities of RMBS and Agency CMBS are 3.6 years and 5.0 years, respectively.

Loans (Tables)

Loans (Tables)	6 Months Ended
	Jun. 30, 2020
Receivables [Abstract]
Loan Portfolio Composition and Aging Analysis	The table below presents the composition and aging analysis of our loans held for investment portfolio as of June 30, 2020 and December 31, 2019 . The delinquency aging includes all past due loans, both performing and nonperforming. Table 3.1 : Loan Portfolio Composition and Aging Analysis June 30, 2020 Delinquent Loans (Dollars in millions) Current 30-59 Days 60-89 Days > 90 Days Total Delinquent Loans Total Loans Credit Card: Domestic credit card $ 96,666 $ 668 $ 554 $ 1,502 $ 2,724 $ 99,390 International card businesses 7,689 76 54 101 231 7,920 Total credit card 104,355 744 608 1,603 2,955 107,310 Consumer Banking: Auto 61,043 1,517 582 177 2,276 63,319 Retail banking 3,346 20 11 16 47 3,393 Total consumer banking 64,389 1,537 593 193 2,323 66,712 Commercial Banking: Commercial and multifamily real estate 30,667 137 118 31 286 30,953 Commercial and industrial 46,311 114 23 89 226 46,537 Total commercial banking 76,978 251 141 120 512 77,490 Total loans (1) $ 245,722 $ 2,532 $ 1,342 $ 1,916 $ 5,790 $ 251,512 % of Total loans 97.7 % 1.0 % 0.5 % 0.8 % 2.3 % 100.0 % December 31, 2019 Delinquent Loans (Dollars in millions) Current 30-59 Days 60-89 Days > 90 Days Total Delinquent Loans PCI Loans Total Loans Credit Card: Domestic credit card $ 113,857 $ 1,341 $ 1,038 $ 2,277 $ 4,656 $ 93 $ 118,606 International card businesses 9,277 133 84 136 353 0 9,630 Total credit card 123,134 1,474 1,122 2,413 5,009 93 128,236 Consumer Banking: Auto 55,778 2,828 1,361 395 4,584 0 60,362 Retail banking 2,658 24 8 11 43 2 2,703 Total consumer banking 58,436 2,852 1,369 406 4,627 2 63,065 Commercial Banking: Commercial and multifamily real estate 30,157 43 20 4 67 21 30,245 Commercial and industrial 44,009 75 26 143 244 10 44,263 Total commercial banking 74,166 118 46 147 311 31 74,508 Total loans (1) $ 255,736 $ 4,444 $ 2,537 $ 2,966 $ 9,947 $ 126 $ 265,809 % of Total loans 96.2 % 1.6 % 1.0 % 1.1 % 3.7 % 0.1 % 100.0 % __________ (1) Loans include unamortized premiums and discounts, and unamortized deferred fees and costs totaling $1.1 billion as of both June 30, 2020 and December 31, 2019
90 Plus Day Delinquent Loans Accruing Interest and Nonperforming Loans	The following table presents our loans held for investment that are 90 days or more past due that continue to accrue interest and loans that are classified as nonperforming as of June 30, 2020 and December 31, 2019 . We also present nonperforming loans without an allowance as of June 30, 2020 . Nonperforming loans generally include loans that have been placed on nonaccrual status. Table 3.2 : 90+ Day Delinquent Loans Accruing Interest and Nonperforming Loans June 30, 2020 December 31, 2019 (Dollars in millions) > 90 Days and Accruing Nonperforming Loans (1) Nonperforming Loans Without an Allowance > 90 Days and Accruing Nonperforming Loans Credit Card: Domestic credit card $ 1,502 N/A $ 0 $ 2,277 N/A International card businesses 94 $ 23 0 130 $ 25 Total credit card 1,596 23 0 2,407 25 Consumer Banking: Auto 0 260 0 0 487 Retail banking 0 24 2 0 23 Total consumer banking 0 284 2 0 510 Commercial Banking: Commercial and multifamily real estate 14 167 162 0 38 Commercial and industrial 0 493 160 0 410 Total commercial banking 14 660 322 0 448 Total $ 1,610 $ 967 $ 324 $ 2,407 $ 983 % of Total loans held for investment 0.6 % 0.4 % 0.1 % 0.9 % 0.4 % __________ (1) We recognized interest income for loans classified as nonperforming of $5 million and $11 million for the three and six months ended June 30, 2020 , respectively.
Loans and Leases Receivable Disclosure [Line Items]
TDR Disclosures in Progress Financial Impact of Modification	The following tables present the major modification types, recorded investment amounts and financial effects of loans modified in TDRs during the three and six months ended June 30, 2020 and 2019 . Table 3.6 : Troubled Debt Restructurings Total Loans Modified (1) Three Months Ended June 30, 2020 Reduced Interest Rate Term Extension Balance Reduction (Dollars in millions) % of TDR Activity (2) Average Rate Reduction % of TDR Activity (2) Average Term Extension (Months) % of TDR Activity (2) Gross Balance Reduction Credit Card: Domestic credit card $ 56 100 % 15.41 % 0 % 0 0 % $ 0 International card businesses 28 100 26.56 0 0 0 0 Total credit card 84 100 19.14 0 0 0 0 Consumer Banking: Auto 137 5 4.12 95 3 0 0 Retail banking 1 10 8.37 59 4 0 0 Total consumer banking 138 5 4.19 95 3 0 0 Commercial Banking: Commercial and multifamily real estate 9 0 0.00 100 7 0 0 Commercial and industrial 181 0 0.00 52 8 9 7 Total commercial banking 190 0 0.00 55 8 8 7 Total $ 412 22 17.96 57 5 4 $ 7 Total Loans Modified (1) Six Months Ended June 30, 2020 Reduced Interest Rate Term Extension Balance Reduction (Dollars in millions) % of TDR Activity (2) Average Rate Reduction % of TDR Activity (2) Average Term Extension (Months) % of TDR Activity (2) Gross Balance Reduction Credit Card: Domestic credit card $ 145 100 % 16.05 % 0 % 0 0 % $ 0 International card businesses 79 100 27.05 0 0 0 0 Total credit card 224 100 19.94 0 0 0 0 Consumer Banking: Auto 260 12 3.51 95 4 0 0 Retail banking 4 4 11.42 15 4 0 0 Total consumer banking 264 12 3.55 93 4 0 0 Commercial Banking: Commercial and multifamily real estate 28 0 0.00 100 10 0 0 Commercial and industrial 188 0 0.00 50 8 8 7 Total commercial banking 216 0 0.00 57 9 7 7 Total $ 704 36 17.90 52 5 2 $ 7 Total Loans Modified (1) Three Months Ended June 30, 2019 Reduced Interest Rate Term Extension (Dollars in millions) % of TDR Activity (2) Average Rate Reduction % of TDR Activity (2) Average Term Extension (Months) Credit Card: Domestic credit card $ 74 100 % 16.60 % 0 % 0 International card businesses 40 100 27.25 0 0 Total credit card 114 100 20.32 0 0 Consumer Banking: Auto 52 46 3.78 89 8 Retail banking 5 9 10.55 57 3 Total consumer banking 57 42 3.93 86 8 Commercial Banking: Commercial and industrial 14 0 0.00 100 3 Total commercial lending 14 0 0.00 100 3 Small-ticket commercial real estate 1 0 0.00 0 0 Total commercial banking 15 0 0.00 98 3 Total $ 186 75 17.45 34 7 Total Loans Modified (1) Six Months Ended June 30, 2019 Reduced Interest Rate Term Extension (Dollars in millions) % of TDR Activity (2) Average Rate Reduction % of TDR Activity (2) Average Term Extension (Months) Credit Card: Domestic credit card $ 172 100 % 16.50 % 0 % 0 International card businesses 87 100 27.44 0 0 Total credit card 259 100 20.17 0 0 Consumer Banking: Auto 124 41 3.81 90 7 Retail banking 6 10 10.91 61 3 Total consumer banking 130 39 3.90 89 7 Commercial Banking: Commercial and multifamily real estate 34 100 0.00 0 0 Commercial and industrial 35 0 0.00 40 1 Total commercial lending 69 49 0.00 20 1 Small-ticket commercial real estate 1 0 0.00 0 0 Total commercial banking 70 49 0.00 20 0 Total $ 459 75 15.78 28 6 __________ (1) Represents the recorded investment of total loans modified in TDRs at the end of the quarter in which they were modified. As not every modification type is included in the table above, the total percentage of TDR activity may not add up to 100%. Some loans may receive more than one type of concession as part of the modification. (2) Due to multiple concessions granted to some troubled borrowers, percentages may total more than 100% for certain loan types. The following table presents the type, number and recorded investment of loans modified in TDRs that experienced a default during the period and had completed a modification event in the twelve months prior to the default. A default occurs if the loan is either 90 days or more delinquent, has been charged off as of the end of the period presented or has been reclassified from accrual to nonaccrual status. Table 3.7 : TDRs—Subsequent Defaults Three Months Ended June 30, Six Months Ended June 30, 2020 2019 2020 2019 (Dollars in millions) Number of Contracts Amount Number of Contracts Amount Number of Contracts Amount Number of Contracts Amount Credit Card: Domestic credit card 9,582 $ 21 11,581 $ 26 20,468 $ 43 25,608 $ 55 International card businesses 17,508 25 18,185 28 35,365 51 34,891 56 Total credit card 27,090 46 29,766 54 55,833 94 60,499 111 Consumer Banking: Auto 860 11 1,312 16 2,135 27 2,417 29 Retail banking 3 0 4 1 4 0 12 1 Total consumer banking 863 11 1,316 17 2,139 27 2,429 30 Commercial Banking: Commercial and industrial 1 21 0 0 7 49 0 0 Total commercial banking 1 21 0 0 7 49 0 0 Total 27,954 $ 78 31,082 $ 71 57,979 $ 170 62,928 $ 141
Credit Card
Loans and Leases Receivable Disclosure [Line Items]
Credit Quality Indicator	The table below presents our credit card portfolio by delinquency status as of June 30, 2020 . Table 3.3 : Credit Card Delinquency Status June 30, 2020 (Dollars in millions) Revolving Loans Revolving Loans Converted to Term Total Credit Card: Domestic credit card: Current $ 96,000 $ 666 $ 96,666 30-59 days 637 31 668 60-89 days 532 22 554 Greater than 90 days 1,475 27 1,502 Total domestic credit card 98,644 746 99,390 International card businesses: Current 7,625 64 7,689 30-59 days 66 10 76 60-89 days 43 11 54 Greater than 90 days 87 14 101 Total international card businesses 7,821 99 7,920 Total credit card $ 106,465 $ 845 $ 107,310
Consumer Banking
Loans and Leases Receivable Disclosure [Line Items]
Credit Quality Indicator	The table below presents our consumer banking portfolio of loans held for investment by credit quality indicator as of June 30, 2020 and December 31, 2019 . We present our auto loan portfolio by FICO scores at origination and our retail banking loan portfolio by delinquency status, which includes all past due loans, both performing and nonperforming. Table 3.4 : Consumer Banking Portfolio by Credit Quality Indicator June 30, 2020 Term Loans by Vintage Year (Dollars in millions) 2020 2019 2018 2017 2016 Prior Total Term Loans Revolving Loans Revolving Loans Converted to Term Total December 31, 2019 Auto — At origination FICO scores: (1) Greater than 660 $ 6,968 $ 10,018 $ 6,099 $ 3,931 $ 1,879 $ 519 $ 29,414 $ 0 $ 0 $ 29,414 $ 28,773 621-660 3,028 4,436 2,549 1,569 721 233 12,536 0 0 12,536 11,924 620 or below 5,310 7,550 4,149 2,612 1,272 476 21,369 0 0 21,369 19,665 Total auto 15,306 22,004 12,797 8,112 3,872 1,228 63,319 0 0 63,319 60,362 Retail banking—Delinquency status: Current 1,032 237 236 243 202 619 2,569 768 9 3,346 2,658 30-59 days 0 0 0 1 0 4 5 15 0 20 24 60-89 days 0 0 5 1 0 1 7 4 0 11 8 Greater than 90 days 0 0 0 3 2 3 8 8 0 16 11 Total retail banking (2) 1,032 237 241 248 204 627 2,589 795 9 3,393 2,701 Total consumer banking $ 16,338 $ 22,241 $ 13,038 $ 8,360 $ 4,076 $ 1,855 $ 65,908 $ 795 $ 9 $ 66,712 $ 63,063 __________ (1) Amounts represent period-end loans held for investment in each credit score category. Auto credit scores generally represent average FICO scores obtained from three credit bureaus at the time of application and are not refreshed thereafter. Balances for which no credit score is available or the credit score is invalid are included in the 620 or below category. (2) Includes the Paycheck Protection Program (“PPP”) loans of $931 million as of June 30, 2020.
Commercial Banking
Loans and Leases Receivable Disclosure [Line Items]
Credit Quality Indicator	The following table presents our commercial banking portfolio of loans held for investment by internal risk ratings as of June 30, 2020 and December 31, 2019 . The internal risk rating status includes all past due loans, both performing and nonperforming. Table 3.5 : Commercial Banking Portfolio by Internal Risk Ratings June 30, 2020 Term Loans by Vintage Year (Dollars in millions) 2020 2019 2018 2017 2016 Prior Total Term Loans Revolving Loans Revolving Loans Converted to Term Total Internal risk rating: (1) Commercial and multifamily real estate Noncriticized $ 2,466 $ 5,490 $ 3,587 $ 2,000 $ 2,217 $ 6,635 $ 22,395 $ 6,878 $ 0 $ 29,273 Criticized performing 69 163 343 211 216 456 1,458 55 0 1,513 Criticized nonperforming 0 11 30 0 4 122 167 0 0 167 Total commercial and multifamily real estate 2,535 5,664 3,960 2,211 2,437 7,213 24,020 6,933 0 30,953 Commercial and industrial Noncriticized 4,879 10,234 4,758 3,078 1,998 3,814 28,761 12,774 73 41,608 Criticized performing 169 668 524 371 114 202 2,048 2,388 0 4,436 Criticized nonperforming 32 76 60 60 8 0 236 257 0 493 Total commercial and industrial 5,080 10,978 5,342 3,509 2,120 4,016 31,045 15,419 73 46,537 Total commercial banking (2) $ 7,615 $ 16,642 $ 9,302 $ 5,720 $ 4,557 $ 11,229 $ 55,065 $ 22,352 $ 73 $ 77,490 December 31, 2019 (Dollars in millions) Commercial and Multifamily Real Estate % of Total Commercial and Industrial % of Total Total Commercial Banking % of Total Internal risk rating: (1) Noncriticized $ 29,625 97.9 % $ 42,223 95.4 % $ 71,848 96.5 % Criticized performing 561 1.9 1,620 3.7 2,181 2.9 Criticized nonperforming 38 0.1 410 0.9 448 0.6 PCI loans 21 0.1 10 0.0 31 0.0 Total $ 30,245 100.0 % $ 44,263 100.0 % $ 74,508 100.0 % __________ (1) Criticized exposures correspond to the “Special Mention,” “Substandard” and “Doubtful” asset categories defined by bank regulatory authorities. (2) Includes PPP loans of $231 million as of June 30, 2020.

Allowance for Credit Losses a_2

Allowance for Credit Losses and Reserve for Unfunded Lending Commitments (Tables)	6 Months Ended
	Jun. 30, 2020
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Allowance for Credit Losses on Financing Receivables	The table below summarizes changes in the allowance for credit losses and reserve for unfunded lending commitments by portfolio segment for the three and six months ended June 30, 2020 and 2019 . The allowance balance as of June 30, 2020 reflects the cumulative effects from adoption of the CECL standard and the change to include finance charge and fee reserve in the allowance for credit losses. The reserve for unfunded lending commitments balance as of June 30, 2020 also reflects the cumulative effects from adoption of the CECL standard, including the component of loss sharing agreements with the GSEs on multifamily commercial real estate loans that are within the scope of the CECL standard. When developing an estimate of expected credit losses, we use both quantitative and qualitative methods in considering all available information relevant to assessing collectability. Management will consider and may make adjustments for qualitative factors, which represent management’s judgment of the imprecision and risks inherent in the processes and assumptions used in establishing the allowance for credit losses. Our allowance for credit losses increased by $9.6 billion to $16.8 billion as of June 30, 2020 from December 31, 2019 , primarily driven by the allowance build from expectations of economic worsening and uncertainty as a result of the COVID-19 pandemic as well as the adoption of the CECL standard. Table 4.1 : Allowance for Credit Losses and Reserve for Unfunded Lending Commitments Activity Three Months Ended June 30, 2020 (Dollars in millions) Credit Card Consumer Banking Commercial Banking Total Allowance for credit losses: Balance as of March 31, 2020 $ 10,346 $ 2,154 $ 1,573 $ 14,073 Charge-offs (1,612 ) (416 ) (103 ) (2,131 ) Recoveries (1) 401 224 1 626 Net charge-offs (1,211 ) (192 ) (102 ) (1,505 ) Provision for credit losses 2,944 876 432 4,252 Allowance build for credit losses 1,733 684 330 2,747 Other changes (2) 12 0 0 12 Balance as of June 30, 2020 12,091 2,838 1,903 16,832 Reserve for unfunded lending commitments: Balance as of March 31, 2020 0 0 223 223 Benefit for losses on unfunded lending commitments 0 0 (5 ) (5 ) Balance as of June 30, 2020 0 0 218 218 Combined allowance and reserve as of June 30, 2020 $ 12,091 $ 2,838 $ 2,121 $ 17,050 Six Months Ended June 30, 2020 (Dollars in millions) Credit Card Consumer Banking Commercial Banking Total Allowance for credit losses: Balance as of December 31, 2019 $ 5,395 $ 1,038 $ 775 $ 7,208 Cumulative effects from adoption of the CECL standard 2,241 502 102 2,845 Finance charge and fee reserve reclassification (3) 462 0 0 462 Balance as of January 1, 2020 8,098 1,540 877 10,515 Charge-offs (3,461 ) (912 ) (215 ) (4,588 ) Recoveries (1) 814 474 4 1,292 Net charge-offs (2,647 ) (438 ) (211 ) (3,296 ) Provision for credit losses 6,646 1,736 1,237 9,619 Allowance build for credit losses 3,999 1,298 1,026 6,323 Other changes (2) (6 ) 0 0 (6 ) Balance as of June 30, 2020 12,091 2,838 1,903 16,832 Reserve for unfunded lending commitments: Balance as of December 31, 2019 0 5 130 135 Cumulative effects from adoption of the CECL standard 0 (5 ) 42 37 Balance as of January 1, 2020 0 0 172 172 Provision for losses on unfunded lending commitments 0 0 46 46 Balance as of June 30, 2020 0 0 218 218 Combined allowance and reserve as of June 30, 2020 $ 12,091 $ 2,838 $ 2,121 $ 17,050 Three Months Ended June 30, 2019 (Dollars in millions) Credit Card Consumer Banking Commercial Banking Total Allowance for loan and lease losses: Balance as of March 31, 2019 $ 5,568 $ 1,062 $ 683 $ 7,313 Charge-offs (1,711 ) (423 ) (23 ) (2,157 ) Recoveries (1) 391 251 7 649 Net charge-offs (1,320 ) (172 ) (16 ) (1,508 ) Provision for loan and lease losses 1,095 165 69 1,329 Allowance build (release) for loan and lease losses (225 ) (7 ) 53 (179 ) Other changes (2) (1 ) 0 0 (1 ) Balance as of June 30, 2019 5,342 1,055 736 7,133 Reserve for unfunded lending commitments: Balance as of March 31, 2019 0 4 127 131 Provision for losses on unfunded lending commitments 0 0 13 13 Balance as of June 30, 2019 0 4 140 144 Combined allowance and reserve as of June 30, 2019 $ 5,342 $ 1,059 $ 876 $ 7,277 Six Months Ended June 30, 2019 (Dollars in millions) Credit Card Consumer Banking Commercial Banking Total Allowance for loan and lease losses: Balance as of December 31, 2018 $ 5,535 $ 1,048 $ 637 $ 7,220 Charge-offs (3,493 ) (894 ) (43 ) (4,430 ) Recoveries (1) 809 501 13 1,323 Net charge-offs (2,684 ) (393 ) (30 ) (3,107 ) Provision for loan and lease losses 2,484 400 129 3,013 Allowance build (release) for loan and lease losses (200 ) 7 99 (94 ) Other changes (2) 7 0 0 7 Balance as of June 30, 2019 5,342 1,055 736 7,133 Reserve for unfunded lending commitments: Balance as of December 31, 2018 0 4 118 122 Provision for losses on unfunded lending commitments 0 0 22 22 Balance as of June 30, 2019 0 4 140 144 Combined allowance and reserve as of June 30, 2019 $ 5,342 $ 1,059 $ 876 $ 7,277 ________ (1) The amount and timing of recoveries is impacted by our collection strategies, which are based on customer behavior and risk profile and include direct customer communications, repossession of collateral, the periodic sale of charged off loans as well as additional strategies, such as litigation. (2) Represents foreign currency translation adjustments. (3) Concurrent with our adoption of the CECL standard in the first quarter of 2020, we reclassified our finance charge and fee reserve to our allowance for credit losses, with a corresponding increase to credit card loans held for investment.
Schedule of Loss Sharing Arrangement Impact	The table below summarizes the changes in the estimated reimbursements from these partners for the three and six months ended June 30, 2020 and 2019 . Table 4.2 : Summary of Credit Card Partnership Loss Sharing Arrangements Impacts Three Months Ended June 30, (Dollars in millions) 2020 2019 Estimated reimbursements from partners, beginning of period $ 2,653 $ 442 Amounts due from partners which reduced net charge-offs (293 ) (105 ) Amounts estimated to be charged to partners which reduced provision for credit losses 73 77 Estimated reimbursements from partners, end of period $ 2,433 $ 414 Six Months Ended June 30, (Dollars in millions) 2020 2019 Estimated reimbursements from partners, beginning of period (1) $ 2,166 $ 379 Amounts due from partners which reduced net charge-offs (595 ) (213 ) Amounts estimated to be charged to partners which reduced provision for credit losses 862 248 Estimated reimbursements from partners, end of period $ 2,433 $ 414 _________ (1)

Variable Interest Entities an_2

Variable Interest Entities and Securitizations (Tables)	6 Months Ended
	Jun. 30, 2020
Variable Interest Entities and Securitization [Abstract]
Carrying Amount of Assets and Liabilities of Variable Interest Entities	The tables below present a summary of VIEs in which we had continuing involvement or held a variable interest, aggregated based on VIEs with similar characteristics as of June 30, 2020 and December 31, 2019 . We separately present information for consolidated and unconsolidated VIEs. Table 5.1 : Carrying Amount of Consolidated and Unconsolidated VIEs June 30, 2020 Consolidated Unconsolidated (Dollars in millions) Carrying Amount of Assets Carrying Amount of Liabilities Carrying Amount of Assets Carrying Amount of Liabilities Maximum Exposure to Loss Securitization-Related VIEs: Credit card loan securitizations (1) $ 25,119 $ 13,141 $ 0 $ 0 $ 0 Auto loan securitizations 3,007 2,662 0 0 0 Home loan securitizations 0 0 56 0 319 Total securitization-related VIEs 28,126 15,803 56 0 319 Other VIEs: (2) Affordable housing entities 248 18 4,553 1,262 4,553 Entities that provide capital to low-income and rural communities 2,030 69 0 0 0 Other 0 0 476 0 476 Total other VIEs 2,278 87 5,029 1,262 5,029 Total VIEs $ 30,404 $ 15,890 $ 5,085 $ 1,262 $ 5,348 December 31, 2019 Consolidated Unconsolidated (Dollars in millions) Carrying Amount of Assets Carrying Amount of Liabilities Carrying Amount of Assets Carrying Amount of Liabilities Maximum Exposure to Loss Securitization-Related VIEs: Credit card loan securitizations (1) $ 31,112 $ 16,113 $ 0 $ 0 $ 0 Auto loan securitizations 2,282 2,012 0 0 0 Home loan securitizations 0 0 66 0 352 Total securitization-related VIEs 33,394 18,125 66 0 352 Other VIEs: (2) Affordable housing entities 236 7 4,559 1,289 4,559 Entities that provide capital to low-income and rural communities 1,889 69 0 0 0 Other 0 0 502 0 502 Total other VIEs 2,125 76 5,061 1,289 5,061 Total VIEs $ 35,519 $ 18,201 $ 5,127 $ 1,289 $ 5,413 __________ (1) Represents the carrying amount of assets and liabilities owned by the VIE, which includes the seller’s interest and repurchased notes held by other related parties. (2) In certain investment structures, we consolidate a VIE which in turn holds as its primary asset an investment in an unconsolidated VIE. In these instances, we disclose the carrying amount of assets and liabilities on our consolidated balance sheets as unconsolidated VIEs to avoid duplicating our exposure, as the unconsolidated VIEs are generally the operating entities generating the exposure. The carrying amount of assets and liabilities included in the unconsolidated VIE columns above related to these investment structures were $2.3 billion of assets and $652 million of liabilities as of June 30, 2020 , and $2.3 billion of assets and $741 million of liabilities as of December 31, 2019
External Debt and Receivable Balances of Securitization Programs	The table below presents our continuing involvement in certain securitization-related VIEs as of June 30, 2020 and December 31, 2019 . Table 5.2 : Continuing Involvement in Securitization-Related VIEs (Dollars in millions) Credit Card Auto Mortgages June 30, 2020: Securities held by third-party investors $ 13,102 $ 2,659 $ 872 Receivables in the trust 26,317 2,885 882 Cash balance of spread or reserve accounts 0 10 16 Retained interests Yes Yes Yes Servicing retained Yes Yes No December 31, 2019: Securities held by third-party investors $ 15,798 $ 2,010 $ 962 Receivables in the trust 31,625 2,192 978 Cash balance of spread or reserve accounts 0 7 17 Retained interests Yes Yes Yes Servicing retained Yes Yes No

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Components of Goodwill, Intangible Assets and MSRs	The table below presents our goodwill, intangible assets and MSRs as of June 30, 2020 and December 31, 2019 . Goodwill is presented separately, while intangible assets and MSRs are included in other assets on our consolidated balance sheets. Table 6.1 : Components of Goodwill, Intangible Assets and MSRs June 30, 2020 (Dollars in millions) Carrying Amount of Assets Accumulated Amortization Net Carrying Amount Goodwill $ 14,645 N/A $ 14,645 Intangible assets: Purchased credit card relationship (“PCCR”) intangibles 1,932 $ (1,887 ) 45 Other (1) 249 (154 ) 95 Total intangible assets 2,181 (2,041 ) 140 Total goodwill and intangible assets $ 16,826 $ (2,041 ) $ 14,785 Commercial MSRs (2) $ 611 $ (289 ) $ 322 December 31, 2019 (Dollars in millions) Carrying Amount of Assets Accumulated Amortization Net Carrying Amount Goodwill $ 14,653 N/A $ 14,653 Intangible assets: PCCR intangibles 1,932 $ (1,864 ) 68 Other (1) 246 (140 ) 106 Total intangible assets 2,178 (2,004 ) 174 Total goodwill and intangible assets $ 16,831 $ (2,004 ) $ 14,827 Commercial MSRs (2) $ 555 $ (255 ) $ 300 __________ (1) Primarily consists of intangibles for sponsorship, customer and merchant relationships, partnership, trade name and other contract intangibles. (2) Commercial MSRs are accounted for under the amortization method on our consolidated balance sheets.
Goodwill Attributable to Business Segments	The following table presents changes in the carrying amount of goodwill by each of our business segments as of June 30, 2020 and December 31, 2019 . Table 6.2 : Goodwill by Business Segments (Dollars in millions) Credit Card Consumer Banking Commercial Banking Total Balance as of December 31, 2019 $ 5,088 $ 4,645 $ 4,920 $ 14,653 Other adjustments (1) (8 ) 0 0 (8 ) Balance as of June 30, 2020 $ 5,080 $ 4,645 $ 4,920 $ 14,645 __________ (1) Represents foreign currency translation adjustments and measurement period adjustments on prior period acquisitions.

Deposits and Borrowings (Tables

Deposits and Borrowings (Tables)	6 Months Ended
	Jun. 30, 2020
Deposits and Borrowings [Abstract]
Components of Deposits, Short-Term Borrowings and Long-Term Debt	The following tables summarize the components of our deposits, short-term borrowings and long-term debt as of June 30, 2020 and December 31, 2019 . The carrying value presented below for these borrowings includes unamortized debt premiums and discounts, net of debt issuance costs and fair value hedge accounting adjustments. Table 7.1 : C omponents of Deposits, Short-Term Borrowings and Long-Term Debt (Dollars in millions) June 30, December 31, Deposits: Non-interest-bearing deposits $ 29,055 $ 23,488 Interest-bearing deposits (1) 275,183 239,209 Total deposits $ 304,238 $ 262,697 Short-term borrowings: Federal funds purchased and securities loaned or sold under agreements to repurchase $ 573 $ 314 FHLB advances 0 7,000 Total short-term borrowings $ 573 $ 7,314 June 30, 2020 December 31, (Dollars in millions) Maturity Dates Stated Interest Rates Weighted-Average Interest Rate Carrying Value Carrying Value Long-term debt: Securitized debt obligations 2020-2026 0.53% - 3.01% 1.77 % $ 15,761 $ 17,808 Senior and subordinated notes: Fixed unsecured senior debt (2) 2020-2029 0.80 - 4.75 2.81 21,701 23,302 Floating unsecured senior debt 2020-2023 0.81 - 1.91 1.01 2,008 2,695 Total unsecured senior debt 2.65 23,709 25,997 Fixed unsecured subordinated debt 2023-2026 3.38 - 4.20 3.78 4,772 4,475 Total senior and subordinated notes 28,481 30,472 Other long-term borrowings: Finance lease liabilities 2020-2031 1.63 - 9.91 3.71 85 103 Total other long-term borrowings 85 103 Total long-term debt $ 44,327 $ 48,383 Total short-term borrowings and long-term debt $ 44,900 $ 55,697 __________ (1) Includes $5.9 billion and $6.5 billion of time deposits in denominations in excess of the $250,000 federal insurance limit as of June 30, 2020 and December 31, 2019 , respectively. (2) Includes $1.4 billion of EUR-denominated unsecured notes as of both June 30, 2020 and December 31, 2019 .

Derivative Instruments and He_2

Derivative Instruments and Hedging Activities (Tables)	6 Months Ended
	Jun. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Assets and Liabilities at Fair Value	The following table summarizes the notional amounts and fair values of our derivative instruments as of June 30, 2020 and December 31, 2019 , which are segregated by derivatives that are designated as accounting hedges and those that are not, and are further segregated by type of contract within those two categories. The total derivative assets and liabilities are adjusted on an aggregate basis to take into consideration the effects of legally enforceable master netting agreements and any associated cash collateral received or pledged. Derivative assets and liabilities are included in other assets and other liabilities, respectively, on our consolidated balance sheets, and their related gains or losses are included in operating activities as changes in other assets and other liabilities in the consolidated statements of cash flows. Table 8.1 : Derivative Assets and Liabilities at Fair Value June 30, 2020 December 31, 2019 Notional or Contractual Amount Derivative (1) Notional or Contractual Amount Derivative (1) (Dollars in millions) Assets Liabilities Assets Liabilities Derivatives designated as accounting hedges: Interest rate contracts: Fair value hedges $ 48,761 $ 3 $ 20 $ 57,587 $ 11 $ 55 Cash flow hedges 114,600 1,002 13 96,900 321 29 Total interest rate contracts 163,361 1,005 33 154,487 332 84 Foreign exchange contracts: Fair value hedges 1,404 20 0 1,402 0 6 Cash flow hedges 4,639 50 63 6,103 0 113 Net investment hedges 2,596 27 14 2,829 0 102 Total foreign exchange contracts 8,639 97 77 10,334 0 221 Total derivatives designated as accounting hedges 172,000 1,102 110 164,821 332 305 Derivatives not designated as accounting hedges: Customer accommodation: Interest rate contracts 68,707 1,721 224 62,268 552 117 Commodity contracts 17,384 1,876 1,739 15,492 758 694 Foreign exchange and other contracts 3,816 48 52 4,674 39 42 Total customer accommodation 89,907 3,645 2,015 82,434 1,349 853 Other interest rate exposures (2) 6,263 87 81 6,729 48 30 Other contracts 1,614 1 8 1,562 0 9 Total derivatives not designated as accounting hedges 97,784 3,733 2,104 90,725 1,397 892 Total derivatives $ 269,784 $ 4,835 $ 2,214 $ 255,546 $ 1,729 $ 1,197 Less: netting adjustment (3) (2,226 ) (754 ) (633 ) (523 ) Total derivative assets/liabilities $ 2,609 $ 1,460 $ 1,096 $ 674 __________ (1) Does not reflect $33 million and $12 million recognized as a net valuation allowance on derivative assets and liabilities for non-performance risk as of June 30, 2020 and December 31, 2019 , respectively. Non-performance risk is included in derivative assets and liabilities, which are part of other assets and other liabilities on the consolidated balance sheets, and is offset through non-interest income in the consolidated statements of income. (2) Other interest rate exposures include commercial mortgage-related derivatives and interest rate swaps. (3) Represents balance sheet netting of derivative assets and liabilities, and related payables and receivables for cash collateral held or placed with the same counterparty.
Hedged Item in Fair Value Hedging Relationship	The following table summarizes the carrying value of our hedged assets and liabilities in fair value hedges and the associated cumulative basis adjustments included in those carrying values, excluding basis adjustments related to foreign currency risk, as of June 30, 2020 and December 31, 2019 . Table 8.2 : Hedged Items in Fair Value Hedging Relationships June 30, 2020 December 31, 2019 Carrying Amount Assets/(Liabilities) Cumulative Amount of Basis Adjustments Included in the Carrying Amount Carrying Amount Assets/(Liabilities) Cumulative Amount of Basis Adjustments Included in the Carrying Amount (Dollars in millions) Total Assets/(Liabilities) Discontinued-Hedging Relationships Total Assets/(Liabilities) Discontinued-Hedging Relationships Line item on our consolidated balance sheets in which the hedged item is included: Investment securities available for sale (1)(2) $ 4,858 $ 660 $ 212 $ 10,825 $ 300 $ 52 Interest-bearing deposits (14,851 ) (306 ) 0 (14,310 ) (12 ) 0 Securitized debt obligations (10,011 ) (248 ) 42 (9,403 ) 44 64 Senior and subordinated notes (22,620 ) (1,533 ) (732 ) (27,777 ) (458 ) 324 __________ (1) These amounts include the amortized cost basis of our investment securities designated in hedging relationships for which the hedged item is the last layer expected to be remaining at the end of the hedging relationship. In the second quarter of 2020, we terminated all last of layer hedging relationships with cumulative basis adjustment totaling $212 million as of June 30, 2020 . As of December 31, 2019 , the amortized cost basis of this portfolio was $5.9 billion , the amount of the designated hedged items was $3.1 billion , and the cumulative basis adjustment associated with these hedges was $75 million . (2) Carrying value represents amortized cost.
Offsetting Assets	The following table presents the gross and net fair values of our derivative assets, derivative liabilities, resale and repurchase agreements and the related offsetting amounts permitted under U.S. GAAP as of June 30, 2020 and December 31, 2019 . The table also includes cash and non-cash collateral received or pledged in accordance with such arrangements. The amount of collateral presented, however, is limited to the amount of the related net derivative fair values or outstanding balances; therefore, instances of over-collateralization are excluded. Table 8.3 : Offsetting of Financial Assets and Financial Liabilities Gross Amounts Gross Amounts Offset in the Balance Sheet Net Amounts as Recognized Securities Collateral Held Under Master Netting Agreements (Dollars in millions) Financial Instruments Cash Collateral Received Net Exposure As of June 30, 2020 Derivative assets (1) $ 4,835 $ (702 ) $ (1,524 ) $ 2,609 $ 0 $ 2,609 As of December 31, 2019 Derivative assets (1) 1,729 (347 ) (286 ) 1,096 0 1,096 Gross Amounts Gross Amounts Offset in the Balance Sheet Net Amounts as Recognized Securities Collateral Pledged Under Master Netting Agreements (Dollars in millions) Financial Instruments Cash Collateral Pledged Net Exposure As of June 30, 2020 Derivative liabilities (1) $ 2,214 $ (702 ) $ (52 ) $ 1,460 $ 0 $ 1,460 Repurchase agreements (2) 573 0 0 573 (573 ) 0 As of December 31, 2019 Derivative liabilities (1) 1,197 (347 ) (176 ) 674 0 674 Repurchase agreements (2) 314 0 0 314 (314 ) 0 __________ (1) We received cash collateral from derivative counterparties totaling $1.7 billion and $347 million as of June 30, 2020 and December 31, 2019 , respectively. We also received securities from derivative counterparties with a fair value of approximately $1 million as of both June 30, 2020 and December 31, 2019 , which we have the ability to re-pledge. We posted $1.3 billion and $954 million of cash collateral as of June 30, 2020 and December 31, 2019 , respectively. (2) Under our customer repurchase agreements, which mature the next business day, we pledged collateral with a fair value of $584 million and $320 million as of June 30, 2020 and December 31, 2019 , respectively, primarily consisting of agency RMBS securities.
Offsetting Liabilities	The following table presents the gross and net fair values of our derivative assets, derivative liabilities, resale and repurchase agreements and the related offsetting amounts permitted under U.S. GAAP as of June 30, 2020 and December 31, 2019 . The table also includes cash and non-cash collateral received or pledged in accordance with such arrangements. The amount of collateral presented, however, is limited to the amount of the related net derivative fair values or outstanding balances; therefore, instances of over-collateralization are excluded. Table 8.3 : Offsetting of Financial Assets and Financial Liabilities Gross Amounts Gross Amounts Offset in the Balance Sheet Net Amounts as Recognized Securities Collateral Held Under Master Netting Agreements (Dollars in millions) Financial Instruments Cash Collateral Received Net Exposure As of June 30, 2020 Derivative assets (1) $ 4,835 $ (702 ) $ (1,524 ) $ 2,609 $ 0 $ 2,609 As of December 31, 2019 Derivative assets (1) 1,729 (347 ) (286 ) 1,096 0 1,096 Gross Amounts Gross Amounts Offset in the Balance Sheet Net Amounts as Recognized Securities Collateral Pledged Under Master Netting Agreements (Dollars in millions) Financial Instruments Cash Collateral Pledged Net Exposure As of June 30, 2020 Derivative liabilities (1) $ 2,214 $ (702 ) $ (52 ) $ 1,460 $ 0 $ 1,460 Repurchase agreements (2) 573 0 0 573 (573 ) 0 As of December 31, 2019 Derivative liabilities (1) 1,197 (347 ) (176 ) 674 0 674 Repurchase agreements (2) 314 0 0 314 (314 ) 0 __________ (1) We received cash collateral from derivative counterparties totaling $1.7 billion and $347 million as of June 30, 2020 and December 31, 2019 , respectively. We also received securities from derivative counterparties with a fair value of approximately $1 million as of both June 30, 2020 and December 31, 2019 , which we have the ability to re-pledge. We posted $1.3 billion and $954 million of cash collateral as of June 30, 2020 and December 31, 2019 , respectively. (2) Under our customer repurchase agreements, which mature the next business day, we pledged collateral with a fair value of $584 million and $320 million as of June 30, 2020 and December 31, 2019 , respectively, primarily consisting of agency RMBS securities.
Effects of Fair Value and Cash Flow Hedge Accounting	The net gains (losses) recognized in our consolidated statements of income related to derivatives in fair value and cash flow hedging relationships are presented below for the three and six months ended June 30, 2020 and 2019 . Table 8.4 : Effects of Fair Value and Cash Flow Hedge Accounting Three Months Ended June 30, 2020 Net Interest Income Non-Interest Income (Dollars in millions) Investment Securities Loans, Including Loans Held for Sale Other Interest-bearing Deposits Securitized Debt Obligations Senior and Subordinated Notes Other Total amounts presented in our consolidated statements of income $ 482 $ 5,820 $ 16 $ (611 ) $ (56 ) $ (180 ) $ 166 Fair value hedging relationships: Interest rate and foreign exchange contracts: Interest recognized on derivatives $ (17 ) $ 0 $ 0 $ 27 $ 40 $ 71 $ 0 Gains (losses) recognized on derivatives (26 ) 0 0 9 (13 ) 61 26 Gains (losses) recognized on hedged items (1) 22 0 0 (10 ) 0 (68 ) (26 ) Excluded component of fair value hedges (2) 0 0 0 0 0 0 0 Net expense recognized on fair value hedges $ (21 ) $ 0 $ 0 $ 26 $ 27 $ 64 $ 0 Cash flow hedging relationships: (3) Interest rate contracts: Realized losses reclassified from AOCI into net income $ 7 $ 135 $ 0 $ 0 $ 0 $ 0 $ 0 Foreign exchange contracts: Realized gains reclassified from AOCI into net income (4) 0 0 2 0 0 0 (2 ) Net income (expense) recognized on cash flow hedges $ 7 $ 135 $ 2 $ 0 $ 0 $ 0 $ (2 ) Six Months Ended June 30, 2020 Net Interest Income Non-Interest Income (Dollars in millions) Investment Securities Loans, Including Loans Held for Sale Other Interest-bearing Deposits Securitized Debt Obligations Senior and Subordinated Notes Other Total amounts presented in our consolidated statements of income $ 1,012 $ 12,362 $ 53 $ (1,342 ) $ (155 ) $ (419 ) $ 311 Fair value hedging relationships: Interest rate and foreign exchange contracts: Interest recognized on derivatives $ (28 ) $ 0 $ 0 $ 25 $ 52 $ 110 $ 0 Gains (losses) recognized on derivatives (364 ) 0 0 296 269 1,129 3 Gains (losses) recognized on hedged items (1) 360 0 0 (296 ) (292 ) (1,159 ) (3 ) Excluded component of fair value hedges (2) 0 0 0 0 0 (1 ) 0 Net income (expense) recognized on fair value hedges $ (32 ) $ 0 $ 0 $ 25 $ 29 $ 79 $ 0 Cash flow hedging relationships: (3) Interest rate contracts: Realized gains reclassified from AOCI into net income $ 9 $ 159 $ 0 $ 0 $ 0 $ 0 $ 0 Foreign exchange contracts: Realized gains reclassified from AOCI into net income (4) 0 0 9 0 0 0 (2 ) Net income recognized on cash flow hedges $ 9 $ 159 $ 9 $ 0 $ 0 $ 0 $ (2 ) Three Months Ended June 30, 2019 Net Interest Income Non-Interest Income (Dollars in millions) Investment Securities Loans, Including Loans Held for Sale Other Interest-bearing Deposits Securitized Debt Obligations Senior and Subordinated Notes Other Total amounts presented in our consolidated statements of income $ 629 $ 6,383 $ 64 $ (870 ) $ (139 ) $ (310 ) $ 191 Fair value hedging relationships: Interest rate contracts: Interest recognized on derivatives $ (1 ) $ 0 $ 0 $ (33 ) $ (6 ) $ (10 ) $ 0 Gains (losses) recognized on derivatives (175 ) 0 0 154 79 471 11 Gains (losses) recognized on hedged items (1) 174 0 0 (151 ) (102 ) (511 ) (10 ) Net income (expense) recognized on fair value hedges $ (2 ) $ 0 $ 0 $ (30 ) $ (29 ) $ (50 ) $ 1 Cash flow hedging relationships: (3) Interest rate contracts: Realized losses reclassified from AOCI into net income $ (3 ) $ (59 ) $ 0 $ 0 $ 0 $ 0 $ 0 Foreign exchange contracts: Realized gains (losses) reclassified from AOCI into net income (4) 0 0 13 0 0 0 (1 ) Net income (expense) recognized on cash flow hedges $ (3 ) $ (59 ) $ 13 $ 0 $ 0 $ 0 $ (1 ) Six Months Ended June 30, 2019 Net Interest Income Non-Interest Income (Dollars in millions) Investment Securities Loans, Including Loans Held for Sale Other Interest-bearing Deposits Securitized Debt Obligations Senior and Subordinated Notes Other Total amounts presented in our consolidated statements of income $ 1,284 $ 12,751 $ 133 $ (1,687 ) $ (282 ) $ (624 ) $ 348 Fair value hedging relationships: Interest rate contracts: Interest recognized on derivatives $ 1 $ 0 $ 0 $ (69 ) $ (12 ) $ (21 ) $ 0 Gains (losses) recognized on derivatives (286 ) 0 0 249 112 752 11 Gains (losses) recognized on hedged items (1) 284 0 0 (243 ) (159 ) (831 ) (10 ) Net income (expense) recognized on fair value hedges $ (1 ) $ 0 $ 0 $ (63 ) $ (59 ) $ (100 ) $ 1 Cash flow hedging relationships: (3) Interest rate contracts: Realized losses reclassified from AOCI into net income $ (7 ) $ (115 ) $ 0 $ 0 $ 0 $ 0 $ 0 Foreign exchange contracts: Realized gains (losses) reclassified from AOCI into net income (4) 0 0 25 0 0 0 (1 ) Net income (expense) recognized on cash flow hedges $ (7 ) $ (115 ) $ 25 $ 0 $ 0 $ 0 $ (1 ) __________ (1) Includes amortization expense of $17 million and $53 million for the three and six months ended June 30, 2020 , respectively, and amortization expense of $56 million and $117 million for the three and six months ended June 30, 2019 , respectively, related to basis adjustments on discontinued hedges. (2) Changes in fair values of cross-currency swaps attributable to changes in cross-currency basis spreads are excluded from the assessment of hedge effectiveness and recorded in other comprehensive income. The initial value of the excluded component is recognized in earnings over the life of the swap under the amortization approach. (3) See “ Note 9—Stockholders’ Equity ” for the effects of cash flow and net investment hedges on AOCI and amounts reclassified to net income, net of tax. (4) We recognized a loss of $299 million and a gain of $93 million for the three and six months ended June 30, 2020 , respectively, and a loss of $123 million and $295 million for the three and six months ended June 30, 2019 , respectively, on foreign exchange contracts reclassified from AOCI. These amounts were largely offset by the foreign currency transaction gains (losses) on our foreign currency denominated intercompany funding included other non-interest income.
Gains (Losses) on Free-Standing Derivatives	The net impacts to our consolidated statements of income related to free-standing derivatives are presented below for the three and six months ended June 30, 2020 and 2019 . These gains or losses are recognized in other non-interest income in our consolidated statements of income. T a ble 8.5 : Gains (Losses) on Free-Standing Derivatives Three Months Ended June 30, Six Months Ended June 30, (Dollars in millions) 2020 2019 2020 2019 Gains (losses) recognized in other non-interest income: Customer accommodation: Interest rate contracts $ (1 ) $ 4 $ 12 $ 10 Commodity contracts (1 ) 7 16 9 Foreign exchange and other contracts 1 4 4 7 Total customer accommodation (1 ) 15 32 26 Other interest rate exposures (34 ) (14 ) (16 ) (14 ) Other contracts 1 0 0 (2 ) Total $ (34 ) $ 1 $ 16 $ 10

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	6 Months Ended
	Jun. 30, 2020
Equity [Abstract]
Schedule of Preferred Stock	The following table summarizes our preferred stock outstanding as of June 30, 2020 and December 31, 2019 . Table 9.1 : Preferred Stock Outstanding (1) Redeemable by Issuer Beginning Per Annum Dividend Rate Dividend Frequency Liquidation Preference per Share Total Shares Outstanding as of June 30, 2020 Carrying Value (in millions) Series Description Issuance Date June 30, 2020 December 31, 2019 Series B (2) 6.00% Non-Cumulative August 20, 2012 September 1, 2017 6.00% Quarterly $ 1,000 0 $ 0 $ 853 Series E Fixed-to-Floating Rate Non-Cumulative May 14, 2015 June 1, 2020 5.55% through 5/31/2020; Semi-Annually through 5/31/2020; Quarterly thereafter 1,000 1,000,000 988 988 Series F 6.20% Non-Cumulative August 24, 2015 December 1, 2020 6.20 Quarterly 1,000 500,000 484 484 Series G 5.20% Non-Cumulative July 29, 2016 December 1, 2021 5.20 Quarterly 1,000 600,000 583 583 Series H 6.00% Non-Cumulative November 29, 2016 December 1, 2021 6.00 Quarterly 1,000 500,000 483 483 Series I 5.00% Non-Cumulative September 11, 2019 December 1, 2024 5.00 Quarterly 1,000 1,500,000 1,462 1,462 Series J 4.80% January 31, 2020 June 1, 2025 4.80 Quarterly 1,000 1,250,000 1,209 0 Total $ 5,209 $ 4,853 __________ (1) Except for Series E, ownership is held in the form of depositary shares, each representing a 1/40th interest in a share of fixed-rate non-cumulative perpetual preferred stock. (2) On March 2, 2020, we redeemed all outstanding shares of our preferred stock Series B.
Change in AOCI Gain (Loss) by Component (Net of Tax)	The following table includes the AOCI impacts from the adoption of the CECL standard and the changes in AOCI by component for the three and six months ended June 30, 2020 and 2019 . Table 9.2 : Accumulated Other Comprehensive Income (Loss) Three Months Ended June 30, 2020 (Dollars in millions) Securities Available for Sale Hedging Relationships (1) Foreign Currency Translation Adjustments (2) Other Total AOCI as of March 31, 2020 $ 2,151 $ 1,728 $ (174 ) $ (26 ) $ 3,679 Other comprehensive income (loss) before reclassifications 222 (60 ) 23 0 185 Amounts reclassified from AOCI into earnings 0 117 0 0 117 Other comprehensive income, net of tax 222 57 23 0 302 AOCI as of June 30, 2020 $ 2,373 $ 1,785 $ (151 ) $ (26 ) $ 3,981 Six Months Ended June 30, 2020 (Dollars in millions) Securities Available for Sale Hedging Relationships (1) Foreign Currency Translation Adjustments (2) Other Total AOCI as of December 31, 2019 $ 935 $ 354 $ (107 ) $ (26 ) $ 1,156 Cumulative effects from the adoption of the CECL standard (8 ) 0 0 0 (8 ) Other comprehensive income (loss) before reclassifications 1,446 1,635 (44 ) 0 3,037 Amounts reclassified from AOCI into earnings 0 (204 ) 0 0 (204 ) Other comprehensive income (loss), net of tax 1,446 1,431 (44 ) 0 2,833 AOCI as of June 30, 2020 $ 2,373 $ 1,785 $ (151 ) $ (26 ) $ 3,981 Three Months Ended June 30, 2019 (Dollars in millions) Securities Available for Sale Hedging Relationships (1) Foreign Currency Translation Adjustments (2) Securities Held to Maturity Other Total AOCI as of March 31, 2019 $ (147 ) $ (141 ) $ (147 ) $ (184 ) $ (41 ) $ (660 ) Other comprehensive income before reclassifications 284 406 15 0 0 705 Amounts reclassified from AOCI into earnings (12 ) 131 0 6 0 125 Other comprehensive income, net of tax 272 537 15 6 0 830 AOCI as of June 30, 2019 $ 125 $ 396 $ (132 ) $ (178 ) $ (41 ) $ 170 Six Months Ended June 30, 2019 (Dollars in millions) Securities Available for Sale Hedging Relationships (1) Foreign Currency Translation Adjustments (2) Securities Held to Maturity Other Total AOCI as of December 31, 2018 $ (439 ) $ (418 ) $ (177 ) $ (190 ) $ (39 ) $ (1,263 ) Other comprehensive income (loss) before reclassifications 594 517 45 0 (1 ) 1,155 Amounts reclassified from AOCI into earnings (30 ) 297 0 12 (1 ) 278 Other comprehensive income (loss), net of tax 564 814 45 12 (2 ) 1,433 AOCI as of June 30, 2019 $ 125 $ 396 $ (132 ) $ (178 ) $ (41 ) $ 170 _________ (1) Includes amounts related to cash flow hedges as well as the excluded component of cross-currency swaps designated as fair value hedges. (2) Includes other comprehensive loss of $8 million and gain of $134 million for the three and six months ended June 30, 2020 , respectively, and other comprehensive gains of $53 million and $19 million for the three and six months ended June 30, 2019 , respectively, from hedging instruments designated as net investment hedges.
Reclassifications from AOCI	The following table presents amounts reclassified from each component of AOCI to our consolidated statements of income for the three and six months ended June 30, 2020 and 2019 . Table 9.3 : Reclassifications from AOCI (Dollars in millions) Three Months Ended June 30, Six Months Ended June 30, AOCI Components Affected Income Statement Line Item 2020 2019 2020 2019 Securities available for sale: Non-interest income $ 0 $ 15 $ 0 $ 39 Income tax provision 0 3 0 9 Net income 0 12 0 30 Hedging relationships: Interest rate contracts: Interest income 142 (62 ) 168 (122 ) Foreign exchange contracts: Interest income 2 13 9 25 Interest expense (1 ) 0 (2 ) 0 Non-interest income (299 ) (123 ) 93 (295 ) Income (loss) from continuing operations before income taxes (156 ) (172 ) 268 (392 ) Income tax provision (benefit) (39 ) (41 ) 64 (95 ) Net income (loss) (117 ) (131 ) 204 (297 ) Securities held to maturity: (1) Interest income 0 (8 ) 0 (16 ) Income tax provision (benefit) 0 (2 ) 0 (4 ) Net income (loss) 0 (6 ) 0 (12 ) Other: Non-interest income and non-interest expense 0 0 0 1 Income tax provision 0 0 0 0 Net income 0 0 0 1 Total reclassifications $ (117 ) $ (125 ) $ 204 $ (278 ) __________ (1) On December 31, 2019, we transferred our entire portfolio of held to maturity securities to available for sale.
Components of Other Comprehensive Income (Loss) and Related Tax Impact	The table below summarizes other comprehensive income activity and the related tax impact for the three and six months ended June 30, 2020 and 2019 . Table 9.4 : Other Comprehensive Income Three Months Ended June 30, 2020 2019 (Dollars in millions) Before Tax Provision (Benefit) After Tax Before Tax Provision (Benefit) After Tax Other comprehensive income: Net unrealized gains on securities available for sale $ 292 $ 70 $ 222 $ 358 $ 86 $ 272 Net unrealized gains on hedging relationships 76 19 57 708 171 537 Foreign currency translation adjustments (1) 20 (3 ) 23 33 18 15 Net changes in securities held to maturity 0 0 0 9 3 6 Other 0 0 0 (1 ) (1 ) 0 Other comprehensive income $ 388 $ 86 $ 302 $ 1,107 $ 277 $ 830 Six Months Ended June 30, 2020 2019 (Dollars in millions) Before Tax Provision (Benefit) After Tax Before Tax Provision (Benefit) After Tax Other comprehensive income: Net unrealized gains on securities available for sale $ 1,902 $ 456 $ 1,446 $ 742 $ 178 $ 564 Net unrealized gains on hedging relationships 1,884 453 1,431 1,073 259 814 Foreign currency translation adjustments (1) (1 ) 43 (44 ) 52 7 45 Net changes in securities held to maturity 0 0 0 16 4 12 Other 0 0 0 (3 ) (1 ) (2 ) Other comprehensive income $ 3,785 $ 952 $ 2,833 $ 1,880 $ 447 $ 1,433 __________ (1) Includes the impact of hedging instruments designated as net investment hedges.

Earnings Per Common Share (Tabl

Earnings Per Common Share (Tables)	6 Months Ended
	Jun. 30, 2020
Earnings Per Share [Abstract]
Schedule of Computation of Basic and Diluted Earnings Per Common Share	The following table sets forth the computation of basic and diluted earnings per common share. Table 10.1 : Computation of Basic and Diluted Earnings per Common Share Three Months Ended June 30, Six Months Ended June 30, (Dollars and shares in millions, except per share data) 2020 2019 2020 2019 Income (loss) from continuing operations, net of tax $ (917 ) $ 1,616 $ (2,257 ) $ 3,026 Income (loss) from discontinued operations, net of tax (1 ) 9 (1 ) 11 Net income (loss) (918 ) 1,625 (2,258 ) 3,037 Dividends and undistributed earnings allocated to participating securities (1 ) (12 ) (4 ) (24 ) Preferred stock dividends (90 ) (80 ) (145 ) (132 ) Issuance cost for redeemed preferred stock 0 0 (22 ) 0 Net income (loss) available to common stockholders $ (1,009 ) $ 1,533 $ (2,429 ) $ 2,881 Total weighted-average basic common shares outstanding 456.7 470.8 457.1 470.1 Effect of dilutive securities: (1) Stock options 0.0 1.3 0.0 1.2 Other contingently issuable shares 0.0 0.9 0.0 1.0 Total effect of dilutive securities 0.0 2.2 0.0 2.2 Total weighted-average diluted common shares outstanding 456.7 473.0 457.1 472.3 Basic earnings per common share: Net income (loss) from continuing operations $ (2.21 ) $ 3.24 $ (5.31 ) $ 6.11 Income from discontinued operations 0.00 0.02 0.00 0.02 Net income (loss) per basic common share $ (2.21 ) $ 3.26 $ (5.31 ) $ 6.13 Diluted earnings per common share: (1) Net income (loss) from continuing operations $ (2.21 ) $ 3.22 $ (5.31 ) $ 6.08 Income from discontinued operations 0.00 0.02 0.00 0.02 Net income (loss) per diluted common share $ (2.21 ) $ 3.24 $ (5.31 ) $ 6.10 __________ (1) In periods of net loss, dilutive securities are excluded as their inclusion would have an anti-dilutive effect. Accordingly, awards of 362 thousand shares and options of 2.6 million shares with an exercise price ranging from $45.75 to $86.34 and awards of 956 thousand shares and options of 2.7 million shares with an exercise price ranging from $36.55 to $86.34 were excluded for the three and six months ended June 30, 2020 , respectively. For the three months ended June 30, 2019 , no shares were excluded from the computation of diluted earnings per share. For the six months ended June 30, 2019 , 137 thousand shares related to options with an exercise price of $86.34 were excluded from the computation of diluted earnings per share, because their inclusion would be anti-dilutive.

Fair Value Measurement (Tables)

Fair Value Measurement (Tables)	6 Months Ended
	Jun. 30, 2020
Fair Value Disclosures [Abstract]
Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis	The following table displays our assets and liabilities measured on our consolidated balance sheets at fair value on a recurring basis as of June 30, 2020 and December 31, 2019 . Table 11.1 : Assets and Liabilities Measured at Fair Value on a Recurring Basis June 30, 2020 Fair Value Measurements Using Netting Adjustments (1) (Dollars in millions) Level 1 Level 2 Level 3 Total Assets: Securities available for sale: U.S. Treasury securities $ 4,362 $ 0 $ 0 — $ 4,362 RMBS 0 71,540 474 — 72,014 CMBS 0 10,118 282 — 10,400 Other securities 194 889 0 — 1,083 Total securities available for sale 4,556 82,547 756 — 87,859 Loans held for sale 0 668 0 — 668 Other assets: Derivative assets (2) 301 4,383 151 $ (2,226 ) 2,609 Other (3) 348 0 56 — 404 Total assets $ 5,205 $ 87,598 $ 963 $ (2,226 ) $ 91,540 Liabilities: Other liabilities: Derivative liabilities (2) $ 220 $ 1,877 $ 117 $ (754 ) $ 1,460 Total liabilities $ 220 $ 1,877 $ 117 $ (754 ) $ 1,460 December 31, 2019 Fair Value Measurements Using Netting Adjustments (1) (Dollars in millions) Level 1 Level 2 Level 3 Total Assets: Securities available for sale: U.S. Treasury securities $ 4,124 $ 0 $ 0 — $ 4,124 RMBS 0 63,909 429 — 64,338 CMBS 0 9,413 13 — 9,426 Other securities 231 1,094 0 — 1,325 Total securities available for sale 4,355 74,416 442 — 79,213 Loans held for sale 0 251 0 — 251 Other assets: Derivative assets (2) 84 1,568 77 $ (633 ) 1,096 Other (3) 344 0 66 — 410 Total assets $ 4,783 $ 76,235 $ 585 $ (633 ) $ 80,970 Liabilities: Other liabilities: Derivative liabilities (2) $ 17 $ 1,129 $ 51 $ (523 ) $ 674 Total liabilities $ 17 $ 1,129 $ 51 $ (523 ) $ 674 __________ (1) Represents balance sheet netting of derivative assets and liabilities, and related payables and receivables for cash collateral held or placed with the same counterparty. See “ Note 8—Derivative Instruments and Hedging Activities ” for additional information. (2) Does not reflect $33 million and $12 million recognized as a net valuation allowance on derivative assets and liabilities for non-performance risk as of June 30, 2020 and December 31, 2019 , respectively. Non-performance risk is included in derivative assets and liabilities, which are part of other assets and other liabilities on the consolidated balance sheets, and is offset through non-interest income in the consolidated statements of income. (3) As of June 30, 2020 and December 31, 2019 , other includes retained interests in securitizations of $56 million and $66 million , deferred compensation plan assets of $347 million and $343 million , and equity securities of $1 million , respectively.
Schedule of Level 3 Inputs Reconciliation	The table below presents a reconciliation for all assets and liabilities measured and recognized at fair value on a recurring basis using significant unobservable inputs (Level 3) for the three and six months ended June 30, 2020 and 2019 . Generally, transfers into Level 3 were primarily driven by the usage of unobservable assumptions in the pricing of these financial instruments as evidenced by wider pricing variations among pricing vendors and transfers out of Level 3 were primarily driven by the usage of assumptions corroborated by market observable information as evidenced by tighter pricing among multiple pricing sources. Table 11.2 : Level 3 Recurring Fair Value Rollforward Fair Value Measurements Using Significant Unobservable Inputs (Level 3) Three Months Ended June 30, 2020 Total Gains (Losses) (Realized/Unrealized) Net Unrealized Gains (Losses) Included in Net Income Related to Assets and Liabilities Still Held as of June 30, 2020 (1) (Dollars in millions) Balance, April 1, 2020 Included in Net Income (1) Included in OCI Purchases Sales Issuances Settlements Transfers Into Level 3 Transfers Out of Level 3 Balance, June 30, 2020 Securities available for sale: (2) RMBS $ 373 $ 6 $ 29 $ 0 $ 0 $ 0 $ (16 ) $ 131 $ (49 ) $ 474 $ 7 CMBS 36 0 (1 ) 0 0 0 (3 ) 250 0 282 (3 ) Total securities available for sale 409 6 28 0 0 0 (19 ) 381 (49 ) 756 4 Other assets: Retained interests in securitizations 59 (3 ) 0 0 0 0 0 0 0 56 (3 ) Net derivative assets (liabilities) (4) 66 (8 ) 0 0 0 2 (26 ) 0 0 34 0 Fair Value Measurements Using Significant Unobservable Inputs (Level 3) Six Months Ended June 30, 2020 Total Gains (Losses) (Realized/Unrealized) Net Unrealized Gains (Losses) Included in Net Income Related to Assets and Liabilities Still Held as of June 30, 2020 (1) (Dollars in millions) Balance, January 1, 2020 Included in Net Income (1) Included in OCI Purchases Sales Issuances Settlements Transfers Into Level 3 Transfers Out of Level 3 Balance, June 30, 2020 Securities available for sale: (2)(3) RMBS $ 433 $ 9 $ (24 ) $ 0 $ 0 $ 0 $ (33 ) $ 140 $ (51 ) $ 474 $ 10 CMBS 13 0 (1 ) 0 0 0 (3 ) 273 0 282 (3 ) Total securities available for sale 446 9 (25 ) 0 0 0 (36 ) 413 (51 ) 756 7 Other assets: Retained interests in securitizations 66 (10 ) 0 0 0 0 0 0 0 56 (10 ) Net derivative assets (liabilities) (4) 26 12 0 0 0 26 (28 ) 0 (2 ) 34 18 Fair Value Measurements Using Significant Unobservable Inputs (Level 3) Three Months Ended June 30, 2019 Total Gains (Losses) (Realized/Unrealized) Net Unrealized Gains (Losses) Included in Net Income Related to Assets and Liabilities Still Held as of June 30, 2019 (1) (Dollars in millions) Balance, April 1, 2019 Included in Net Income (1) Included in OCI Purchases Sales Issuances Settlements Transfers Into Level 3 Transfers Out of Level 3 Balance, June 30, 2019 Securities available for sale: (2) RMBS $ 434 $ 9 $ 2 $ 0 $ 0 $ 0 $ (13 ) $ 97 $ (14 ) $ 515 $ 10 CMBS 9 0 0 0 0 0 0 0 0 9 0 Total securities available for sale 443 9 2 0 0 0 (13 ) 97 (14 ) 524 10 Other assets: Retained interest in securitizations 155 22 0 0 0 0 0 0 0 177 22 Net derivative assets (liabilities) (4) 6 0 0 0 0 (7 ) 8 0 (1 ) 6 (2 ) Fair Value Measurements Using Significant Unobservable Inputs (Level 3) Six Months Ended June 30, 2019 Total Gains (Losses) (Realized/Unrealized) Net Unrealized Gains (Losses) Included in Net Income Related to Assets and Liabilities Still Held as of (1) (Dollars in millions) Balance, January 1, 2019 Included in Net Income (1) Included in OCI Purchases Sales Issuances Settlements Transfers Into Level 3 Transfers Out of Level 3 Balance, June 30, 2019 Securities available for sale: (2) RMBS $ 433 $ 17 $ 13 $ 0 $ 0 $ 0 $ (25 ) $ 114 $ (37 ) $ 515 $ 20 CMBS 10 0 0 0 0 0 (1 ) 0 0 9 0 Total securities available for sale 443 17 13 0 0 0 (26 ) 114 (37 ) 524 20 Other assets: Retained interest in securitizations 158 19 0 0 0 0 0 0 0 177 19 Net derivative assets (liabilities) (4) (10 ) 5 0 0 0 (13 ) 27 0 (3 ) 6 4 __________ (1) Realized gains (losses) on securities available for sale are included in net securities gains (losses), and retained interests in securitizations are reported as a component of non-interest income in our consolidated statements of income. Gains (losses) on derivatives are included as a component of net interest income or non-interest income in our consolidated statements of income. (2) For the three and six months ended June 30, 2020 , included in OCI related to Level 3 securities available for sale still held as of June 30, 2020 were net unrealized gains of $36 million and net unrealized losses of $23 million , respectively. For the three and six months ended June 30, 2019 , net unrealized gains included in OCI related to Level 3 securities available for sale still held as of June 30, 2019 were $3 million and $13 million , respectively. (3) The fair value of RMBS as of January 1, 2020 includes a cumulative adjustment of $4 million from the adoption of the CECL standard. (4) Includes derivative assets and liabilities of $151 million and $117 million , respectively, as of June 30, 2020 , $70 million and $64 million , respectively, as of June 30, 2019 .
Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis Quantitative Information	The following table presents the significant unobservable inputs used to determine the fair values of our Level 3 financial instruments on a recurring basis. We utilize multiple vendor pricing services to obtain fair value for our securities. Several of our vendor pricing services are only able to provide unobservable input information for a limited number of securities due to software licensing restrictions. Other vendor pricing services are able to provide unobservable input information for all securities for which they provide a valuation. As a result, the unobservable input information for the securities available for sale presented below represents a composite summary of all information we are able to obtain. The unobservable input information for all other Level 3 financial instruments is based on the assumptions used in our internal valuation models. Table 11.3 : Quantitative Information about Level 3 Fair Value Measurements Quantitative Information about Level 3 Fair Value Measurements (Dollars in millions) Fair Value at June 30, 2020 Significant Valuation Techniques Significant Unobservable Inputs Range Weighted Average (1) Securities available for sale: RMBS $ 474 Discounted cash flows (vendor pricing) Yield 0-12% 4% CMBS 282 Discounted cash flows (vendor pricing) Yield 1-2% 1% Other assets: Retained interests in securitizations (2) 56 Discounted cash flows Life of receivables (months) 33-52 N/A Net derivative assets (liabilities) 34 Discounted cash flows Swap rates 1% 1% Quantitative Information about Level 3 Fair Value Measurements (Dollars in millions) Fair Value at December 31, 2019 Significant Valuation Techniques Significant Unobservable Inputs Range Weighted Average (1) Securities available for sale: RMBS $ 429 Discounted cash flows (vendor pricing) Yield 2-18% 5% CMBS 13 Discounted cash flows (vendor pricing) Yield 2-3% 2% Other assets: Retained interests in securitizations (2) 66 Discounted cash flows Life of receivables (months) 35-51 N/A Net derivative assets (liabilities) 26 Discounted cash flows Swap rates 2% 2% __________ (1) Weighted averages are calculated by using the product of the input multiplied by the relative fair value of the instruments. (2) Due to the nature of the various mortgage securitization structures in which we have retained interests, it is not meaningful to present a consolidated weighted average for the significant unobservable inputs.
Schedule of Assets Measured at Fair Value on Nonrecurring Basis	The following table presents the carrying value of the assets measured at fair value on a nonrecurring basis and still held as of June 30, 2020 and December 31, 2019 , and for which a nonrecurring fair value measurement was recorded during the six and twelve months then ended. Table 11.4 : Nonrecurring Fair Value Measurements June 30, 2020 Estimated Fair Value Hierarchy Total (Dollars in millions) Level 2 Level 3 Loans held for investment $ 0 $ 289 $ 289 Other assets (1) 0 52 52 Total $ 0 $ 341 $ 341 December 31, 2019 Estimated Fair Value Hierarchy Total (Dollars in millions) Level 2 Level 3 Loans held for investment $ 0 $ 294 $ 294 Other assets (1) 0 103 103 Total $ 0 $ 397 $ 397 __________ (1) As of June 30, 2020 , other assets included equity investments accounted for under the measurement alternative of $28 million , repossessed assets of $23 million and long-lived assets held for sale of $1 million . As of December 31, 2019 , other assets included equity investments accounted for under the measurement alternative of $5 million , repossessed assets of $61 million and long-lived assets held for sale of $37 million .
Schedule of Earnings Related to Assets Measured at Fair Value on Nonrecurring Basis	The following table presents total nonrecurring fair value measurements for the period, included in earnings, attributable to the change in fair value relating to assets that are still held at June 30, 2020 and 2019 . Table 11.5 : Nonrecurring Fair Value Measurements Included in Earnings Total Gains (Losses) Six Months Ended June 30, (Dollars in millions) 2020 2019 Loans held for investment $ (253 ) $ (132 ) Loans held for sale 0 (1 ) Other assets (1) (22 ) (57 ) Total $ (275 ) $ (190 ) __________ (1) Other assets include fair value adjustments related to repossessed assets, long-lived assets held for sale and equity investments accounted for under the measurement alternative.
Schedule of Fair Value of Financial Instruments	The following table presents the carrying value and estimated fair value, including the level within the fair value hierarchy, of our financial instruments that are not measured at fair value on a recurring basis on our consolidated balance sheets as of June 30, 2020 and December 31, 2019 . Table 11.6 : Fair Value of Financial Instruments June 30, 2020 Carrying Value Estimated Fair Value Estimated Fair Value Hierarchy (Dollars in millions) Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 55,818 $ 55,818 $ 4,583 $ 51,235 $ 0 Restricted cash for securitization investors 740 740 740 0 0 Net loans held for investment 234,680 242,893 0 0 242,893 Loans held for sale 43 43 0 43 0 Interest receivable 1,574 1,574 0 1,574 0 Other investments (1) 1,341 1,341 0 1,341 0 Financial liabilities: Deposits with defined maturities 43,912 44,452 0 44,452 0 Securitized debt obligations 15,761 15,933 0 15,933 0 Senior and subordinated notes 28,481 28,771 0 28,771 0 Federal funds purchased and securities loaned or sold under agreements to repurchase 573 573 0 573 0 Interest payable 380 380 0 380 0 December 31, 2019 Carrying Value Estimated Fair Value Estimated Fair Value Hierarchy (Dollars in millions) Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 13,407 $ 13,407 $ 4,129 $ 9,278 $ 0 Restricted cash for securitization investors 342 342 342 0 0 Net loans held for investment 258,601 258,696 0 0 258,696 Loans held for sale 149 149 0 149 0 Interest receivable 1,758 1,758 0 1,758 0 Other investments (1) 1,638 1,638 0 1,638 0 Financial liabilities: Deposits with defined maturities 44,958 45,225 0 45,225 0 Securitized debt obligations 17,808 17,941 0 17,941 0 Senior and subordinated notes 30,472 31,233 0 31,233 0 Federal funds purchased and securities loaned or sold under agreements to repurchase 314 314 0 314 0 Other borrowings (2) 7,000 7,001 0 7,001 0 Interest payable 439 439 0 439 0 __________ (1) Other investments include FHLB and Federal Reserve stock. These investments are included in other assets on our consolidated balance sheets. (2) Other borrowings excludes finance lease liabilities.

Business Segments and Revenue_2

Business Segments and Revenue from Contracts with Customers (Tables)	6 Months Ended
	Jun. 30, 2020
Segment Reporting [Abstract]
Schedule of Segment Results and Reconciliation	The following table presents our business segment results for the three and six months ended June 30, 2020 and 2019 , selected balance sheet data as of June 30, 2020 and 2019 , and a reconciliation of our total business segment results to our reported consolidated income from continuing operations, loans held for investment and deposits. Table 12.1 : Segment Results and Reconciliation Three Months Ended June 30, 2020 (Dollars in millions) Credit Card Consumer Banking Commercial Banking (1) Other (1) Consolidated Total Net interest income (loss) $ 3,369 $ 1,665 $ 518 $ (92 ) $ 5,460 Non-interest income (loss) 845 97 180 (26 ) 1,096 Total net revenue (loss) (2) 4,214 1,762 698 (118 ) 6,556 Provision (benefit) for credit losses 2,944 876 427 (1 ) 4,246 Non-interest expense 1,969 1,036 425 340 3,770 Loss from continuing operations before income taxes (699 ) (150 ) (154 ) (457 ) (1,460 ) Income tax benefit (166 ) (36 ) (36 ) (305 ) (543 ) Loss from continuing operations, net of tax $ (533 ) $ (114 ) $ (118 ) $ (152 ) $ (917 ) Loans held for investment $ 107,310 $ 66,712 $ 77,490 $ 0 $ 251,512 Deposits 0 246,804 35,669 21,765 304,238 Six Months Ended June 30, 2020 (Dollars in millions) Credit Card Consumer Banking Commercial Banking (1) Other (1) Consolidated Total Net interest income $ 7,071 $ 3,322 $ 1,009 $ 83 $ 11,485 Non-interest income (loss) 1,756 223 418 (77 ) 2,320 Total net revenue (2) 8,827 3,545 1,427 6 13,805 Provision for credit losses 6,646 1,736 1,283 4 9,669 Non-interest expense 4,177 2,027 837 458 7,499 Loss from continuing operations before income taxes (1,996 ) (218 ) (693 ) (456 ) (3,363 ) Income tax benefit (472 ) (52 ) (164 ) (418 ) (1,106 ) Loss from continuing operations, net of tax $ (1,524 ) $ (166 ) $ (529 ) $ (38 ) $ (2,257 ) Loans held for investment $ 107,310 $ 66,712 $ 77,490 $ 0 $ 251,512 Deposits 0 246,804 35,669 21,765 304,238 Three Months Ended June 30, 2019 (Dollars in millions) Credit Card Consumer Banking Commercial Banking (1) Other (1) Consolidated Total Net interest income (loss) $ 3,531 $ 1,709 $ 514 $ (8 ) $ 5,746 Non-interest income (loss) 1,038 166 200 (26 ) 1,378 Total net revenue (loss) 4,569 1,875 714 (34 ) 7,124 Provision for credit losses 1,095 165 82 0 1,342 Non-interest expense 2,253 1,002 427 97 3,779 Income (loss) from continuing operations before income taxes 1,221 708 205 (131 ) 2,003 Income tax provision (benefit) 283 165 48 (109 ) 387 Income (loss) from continuing operations, net of tax $ 938 $ 543 $ 157 $ (22 ) $ 1,616 Loans held for investment $ 112,141 $ 60,327 $ 71,992 $ 0 $ 244,460 Deposits 0 205,220 30,761 18,554 254,535 Six Months Ended June 30, 2019 (Dollars in millions) Credit Card Consumer Banking Commercial Banking (1) Other (1) Consolidated Total Net interest income $ 7,121 $ 3,388 $ 1,003 $ 25 $ 11,537 Non-interest income (loss) 1,988 326 387 (31 ) 2,670 Total net revenue (loss) 9,109 3,714 1,390 (6 ) 14,207 Provision for credit losses 2,484 400 151 0 3,035 Non-interest expense 4,424 1,996 844 186 7,450 Income (loss) from continuing operations before income taxes 2,201 1,318 395 (192 ) 3,722 Income tax provision (benefit) 512 307 92 (215 ) 696 Income from continuing operations, net of tax $ 1,689 $ 1,011 $ 303 $ 23 $ 3,026 Loans held for investment $ 112,141 $ 60,327 $ 71,992 $ 0 $ 244,460 Deposits 0 205,220 30,761 18,554 254,535 __________ (1) Some of our commercial investments generate tax-exempt income, tax credits or other tax benefits. Accordingly, we present our Commercial Banking revenue and yields on a taxable-equivalent basis, calculated using the federal statutory tax rate of 21% and state taxes where applicable, with offsetting reductions to the Other category. (2) Total net revenue was reduced by $318 million and $707 million in the three and six months ended June 30, 2020
Disaggregation of Revenue	The following table presents revenue from contracts with customers and a reconciliation to non-interest income by business segment for the three and six months ended June 30, 2020 and 2019 . Table 12.2 : Revenue from Contracts with Customers and Reconciliation to Segments Result Three Months Ended June 30, 2020 (Dollars in millions) Credit Card Consumer Banking Commercial Banking (1) Other (1) Consolidated Total Contract revenue: Interchange fees, net (2) $ 612 $ 48 $ 13 $ (1 ) $ 672 Service charges and other customer-related fees 0 31 43 (1 ) 73 Other 57 3 0 0 60 Total contract revenue 669 82 56 (2 ) 805 Revenue from other sources 176 15 124 (24 ) 291 Total non-interest income $ 845 $ 97 $ 180 $ (26 ) $ 1,096 Six Months Ended June 30, 2020 (Dollars in millions) Credit Card Consumer Banking Commercial Banking (1) Other (1) Consolidated Total Contract revenue: Interchange fees, net (2) $ 1,300 $ 98 $ 28 $ (2 ) $ 1,424 Service charges and other customer-related fees 0 95 74 (1 ) 168 Other 127 22 1 0 150 Total contract revenue 1,427 215 103 (3 ) 1,742 Revenue from other sources 329 8 315 (74 ) 578 Total non-interest income $ 1,756 $ 223 $ 418 $ (77 ) $ 2,320 Three Months Ended June 30, 2019 (Dollars in millions) Credit Card Consumer Banking Commercial Banking (1) Other (1) Consolidated Total Contract revenue: Interchange fees, net (2) $ 757 $ 52 $ 13 $ (2 ) $ 820 Service charges and other customer-related fees 0 74 28 0 102 Other 20 26 1 0 47 Total contract revenue 777 152 42 (2 ) 969 Revenue from other sources 261 14 158 (24 ) 409 Total non-interest income $ 1,038 $ 166 $ 200 $ (26 ) $ 1,378 Six Months Ended June 30, 2019 (Dollars in millions) Credit Card Consumer Banking Commercial Banking (1) Other (1) Consolidated Total Contract revenue: Interchange fees, net (2) $ 1,459 $ 98 $ 24 $ (3 ) $ 1,578 Service charges and other customer-related fees 0 149 53 0 202 Other 32 50 1 0 83 Total contract revenue 1,491 297 78 (3 ) 1,863 Revenue from other sources 497 29 309 (28 ) 807 Total non-interest income $ 1,988 $ 326 $ 387 $ (31 ) $ 2,670 __________ (1) Some of our commercial investments generate tax-exempt income, tax credits or other tax benefits. Accordingly, we present our Commercial Banking revenue and yields on a taxable-equivalent basis, calculated using the federal statutory tax rate of 21% and state taxes where applicable, with offsetting reductions to the Other category. (2) Interchange fees are presented net of customer reward expenses.

Commitments, Contingencies, G_2

Commitments, Contingencies, Guarantees, and Others (Tables)	6 Months Ended
	Jun. 30, 2020
Commitments and Contingencies Disclosure [Abstract]
Schedule of Letter of Credit and Other Loan Commitments	The following table presents the contractual amount and carrying value of our unfunded lending commitments as of June 30, 2020 and December 31, 2019 . The carrying value represents our reserve and deferred revenue on legally binding commitments. Table 13.1 : Unfunded Lending Commitments Contractual Amount Carrying Value (Dollars in millions) June 30, December 31, June 30, December 31, Credit card lines $ 365,410 $ 363,446 N/A N/A Other loan commitments (1) 32,631 36,454 $ 156 $ 110 Standby letters of credit and commercial letters of credit (2) 1,442 1,574 43 27 Total unfunded lending commitments $ 399,483 $ 401,474 $ 199 $ 137 __________ (1) Includes $1.5 billion and $1.6 billion of advised lines of credit as of June 30, 2020 and December 31, 2019 , respectively. (2) These financial guarantees have expiration dates ranging from 2020 to 2023 as of June 30, 2020 .

Summary of Significant Accoun_3

Summary of Significant Accounting Policies - Segments (Detail)	6 Months Ended
	Jun. 30, 2020Segment
Accounting Policies [Abstract]
Number of operating segments	3

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Loans and Allowance for Credit Losses (Details)	6 Months Ended
	Jun. 30, 2020
Loans and Leases Receivable Disclosure [Line Items]
Threshold period past due for delinquency status of financing receivables	30 days
Credit Card
Loans and Leases Receivable Disclosure [Line Items]
Loan origination fees and direct loan origination costs amortization period	12 months
Threshold period past due for write-off of trade accounts receivable	180 days
Credit Card | Privileges Revoked
Loans and Leases Receivable Disclosure [Line Items]
Threshold period past due for write-off of trade accounts receivable	120 days
Credit Card | Notification of Death
Loans and Leases Receivable Disclosure [Line Items]
Threshold period past due for write-off of trade accounts receivable	5 days
Credit Card | Chapter Seven Bankruptcy
Loans and Leases Receivable Disclosure [Line Items]
Threshold period past due for write-off of trade accounts receivable	30 days
Consumer Banking
Loans and Leases Receivable Disclosure [Line Items]
Threshold period past due for nonperforming status of financing receivables	90 days
Consumer Banking | Notification of Death
Loans and Leases Receivable Disclosure [Line Items]
Threshold period past due for nonperforming status of financing receivables	60 days
Consumer Banking | Chapter Seven Bankruptcy
Loans and Leases Receivable Disclosure [Line Items]
Threshold period past due for nonperforming status of financing receivables	60 days
Consumer Banking | Auto
Loans and Leases Receivable Disclosure [Line Items]
Threshold period past due for nonperforming status of financing receivables	120 days
Consumer Banking | Small Business Banking Loans | Maximum
Loans and Leases Receivable Disclosure [Line Items]
Threshold period past due for nonperforming status of financing receivables	120 days
Consumer Banking | Other Consumer Loans
Loans and Leases Receivable Disclosure [Line Items]
Threshold period following bankruptcy notice for write-off of financing receivable	40 days

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Revenue Recognition (Details) - Credit Card	6 Months Ended
	Jun. 30, 2020
Loans and Leases Receivable Disclosure [Line Items]
Loan Commitment and Origination Fees and Discounts or Premiums, Amortization Period	12 months
Amortization term of annual membership fees	12 months

Summary of Significant Accoun_6

Summary of Significant Accounting Policies Newly Adopted Accounting Standards (Detail) - 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 loss	$ 16,832			$ 7,208
Retained earnings	35,361			40,340
Accounting Standards Update 2016-13
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred tax assets			$ 694
Retained earnings			2,200
Cumulative effects from adoption of the CECL standard
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Retained earnings			11
Allowance for credit losses
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit loss	$ 16,832	$ 14,073		7,208	$ 7,133	$ 7,313	$ 7,220
Finance charge and fee reserve reclassification			462
Allowance for credit losses | Accounting Standards Update 2016-13
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit loss			$ 2,900
Allowance for credit losses | Cumulative effects from adoption of the CECL standard
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for credit loss				$ 2,845

Investment Securities - Additio

Investment Securities - Additional Information (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Jan. 01, 2020
Debt Securities, Available-for-sale [Line Items]
Accrued interest receivable					$ 233
Proceeds from sales			$ 0	$ 909	144	$ 3,983
Debt Securities, Available-for-sale, Gain (Loss)				$ 15	1	$ 39
Derivative, collateral, obligation to return securities	$ 1	$ 1	1		1
Increase in retained earnings	35,361	40,340	35,361		35,361
Decrease in AOCI	$ (3,981)	$ (1,156)	(3,981)		(3,981)
Investment securities portfolio | US Treasury and Agency securities
Debt Securities, Available-for-sale [Line Items]
Percentage of portfolio	97.00%	96.00%
Collateral pledged
Debt Securities, Available-for-sale [Line Items]
Debt securities, available-for-sale, restricted	$ 12,600	$ 14,000	$ 12,600		$ 12,600
Cumulative effects from adoption of the CECL standard
Debt Securities, Available-for-sale [Line Items]
Increase in retained earnings							$ 11
Decrease in AOCI							$ 11

Investment Securities - Investm

Investment Securities - Investment Available for Sale (Detail) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 84,742	$ 77,984
Allowance for Credit Losses	(3)
Gross Unrealized Gains	3,211	1,561
Gross Unrealized Losses	(91)	(332)
Fair Value	87,859	79,213
U.S. Treasury securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	4,353	4,122
Allowance for Credit Losses	0
Gross Unrealized Gains	12	6
Gross Unrealized Losses	(3)	(4)
Fair Value	4,362	4,124
RMBS, Agency
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	68,223	62,003
Allowance for Credit Losses	0
Gross Unrealized Gains	2,541	1,120
Gross Unrealized Losses	(77)	(284)
Fair Value	70,687	62,839
RMBS, Non-agency
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	1,144	1,235
Allowance for Credit Losses	(3)
Gross Unrealized Gains	187	266
Gross Unrealized Losses	(1)	(2)
Fair Value	1,327	1,499
RMBS
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	69,367	63,238
Allowance for Credit Losses	(3)
Gross Unrealized Gains	2,728	1,386
Gross Unrealized Losses	(78)	(286)
Fair Value	72,014	64,338
CMBS, Agency
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	9,940	9,303
Allowance for Credit Losses	0
Gross Unrealized Gains	469	165
Gross Unrealized Losses	(9)	(42)
Fair Value	10,400	9,426
Other securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	1,082	1,321
Allowance for Credit Losses	0
Gross Unrealized Gains	2	4
Gross Unrealized Losses	(1)	0
Fair Value	$ 1,083	$ 1,325

Investment Securities - Securit

Investment Securities - Securities in Gross Unrealized Loss Position (Detail) $ in Millions	Jun. 30, 2020USD ($)Security	Dec. 31, 2019USD ($)
Debt Securities, Available-for-sale [Line Items]
Fair Value - Less than 12 Months	$ 6,879	$ 15,882
Fair Value - 12 Months or Longer	3,941	12,252
Fair Value - Total	10,820	28,134
Gross Unrealized Loss - Less than 12 Months	(37)	(120)
Gross Unrealized Loss - 12 Months or Longer	(53)	(212)
Gross Unrealized Loss - Total	$ (90)	(332)
Number of securities in gross unrealized loss positions | Security	350
U.S. Treasury securities
Debt Securities, Available-for-sale [Line Items]
Fair Value - Less than 12 Months	$ 2,812	2,647
Fair Value - 12 Months or Longer	0	0
Fair Value - Total	2,812	2,647
Gross Unrealized Loss - Less than 12 Months	(3)	(4)
Gross Unrealized Loss - 12 Months or Longer	0	0
Gross Unrealized Loss - Total	(3)	(4)
RMBS, Agency
Debt Securities, Available-for-sale [Line Items]
Fair Value - Less than 12 Months	2,732	10,494
Fair Value - 12 Months or Longer	3,210	10,567
Fair Value - Total	5,942	21,061
Gross Unrealized Loss - Less than 12 Months	(30)	(92)
Gross Unrealized Loss - 12 Months or Longer	(47)	(192)
Gross Unrealized Loss - Total	(77)	(284)
RMBS, Non-agency
Debt Securities, Available-for-sale [Line Items]
Fair Value - Less than 12 Months	14	35
Fair Value - 12 Months or Longer	2	16
Fair Value - Total	16	51
Gross Unrealized Loss - Less than 12 Months	0	(1)
Gross Unrealized Loss - 12 Months or Longer	0	(1)
Gross Unrealized Loss - Total	0	(2)
RMBS
Debt Securities, Available-for-sale [Line Items]
Fair Value - Less than 12 Months	2,746	10,529
Fair Value - 12 Months or Longer	3,212	10,583
Fair Value - Total	5,958	21,112
Gross Unrealized Loss - Less than 12 Months	(30)	(93)
Gross Unrealized Loss - 12 Months or Longer	(47)	(193)
Gross Unrealized Loss - Total	(77)	(286)
CMBS, Agency
Debt Securities, Available-for-sale [Line Items]
Fair Value - Less than 12 Months	644	2,580
Fair Value - 12 Months or Longer	724	1,563
Fair Value - Total	1,368	4,143
Gross Unrealized Loss - Less than 12 Months	(3)	(23)
Gross Unrealized Loss - 12 Months or Longer	(6)	(19)
Gross Unrealized Loss - Total	(9)	(42)
Other securities
Debt Securities, Available-for-sale [Line Items]
Fair Value - Less than 12 Months	677	126
Fair Value - 12 Months or Longer	5	106
Fair Value - Total	682	232
Gross Unrealized Loss - Less than 12 Months	(1)	0
Gross Unrealized Loss - 12 Months or Longer	0	0
Gross Unrealized Loss - Total	$ (1)	$ 0

Investment Securities - Contrac

Investment Securities - Contractual Maturities and Weighted-Average Yields of Securities (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Securities available for sale
Due in 1 year or less	$ 271
Due after 1 year through 5 years	7,528
Due after 5 years through 10 years	5,509
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value	74,551
Securities available for sale	87,859	$ 79,213
Amortized cost of securities available for sale
Due in 1 year or less	270
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Amortized Cost	7,486
Due after 5 years through 10 years	5,271
Due 10 Years	71,715
Amortized Cost	$ 84,742	77,984
Weighted average yield for securities available for sale
Due in 1 Year or Less	1.15%
Due 1 Year through 5 Years	1.52%
Due 5 Years through 10 Years	2.38%
Due 10 Years	2.61%
Total weighted average yield	2.49%
U.S. Treasury securities
Securities available for sale
Due in 1 year or less	$ 0
Due after 1 year through 5 years	4,362
Due after 5 years through 10 years	0
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value	0
Securities available for sale	4,362	4,124
Amortized cost of securities available for sale
Amortized Cost	4,353	4,122
RMBS, Agency
Securities available for sale
Due in 1 year or less	0
Due after 1 year through 5 years	82
Due after 5 years through 10 years	963
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value	69,642
Securities available for sale	70,687	62,839
Amortized cost of securities available for sale
Amortized Cost	68,223	62,003
RMBS, Non-agency
Securities available for sale
Due in 1 year or less	0
Due after 1 year through 5 years	0
Due after 5 years through 10 years	0
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value	1,327
Securities available for sale	1,327	1,499
Amortized cost of securities available for sale
Amortized Cost	1,144	1,235
RMBS
Securities available for sale
Due in 1 year or less	0
Due after 1 year through 5 years	82
Due after 5 years through 10 years	963
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value	70,969
Securities available for sale	72,014	64,338
Amortized cost of securities available for sale
Amortized Cost	$ 69,367	63,238
Weighted average yield for securities available for sale
Weighted-average expected life	3 years 7 months 6 days
CMBS, Agency
Securities available for sale
Due in 1 year or less	$ 6
Due after 1 year through 5 years	2,550
Due after 5 years through 10 years	4,262
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value	3,582
Securities available for sale	10,400	9,426
Amortized cost of securities available for sale
Amortized Cost	$ 9,940	9,303
Weighted average yield for securities available for sale
Weighted-average expected life	5 years
Other securities
Securities available for sale
Due in 1 year or less	$ 265
Due after 1 year through 5 years	534
Due after 5 years through 10 years	284
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value	0
Securities available for sale	1,083	1,325
Amortized cost of securities available for sale
Amortized Cost	$ 1,082	$ 1,321

Loans - Additional Information

Loans - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020	Dec. 31, 2019
Loans and Leases Receivable Disclosure [Line Items]
Accrued interest receivable	$ 1,300	$ 1,300
TDRs	1,800	1,800	$ 1,700
Commitments to lend on loans modified in TDRs	145	145	178
Loans held for sale	711	711	400
Federal Home Loan banks
Loans and Leases Receivable Disclosure [Line Items]
Loans Pledged as Collateral	15,700	15,700	14,600
Line of Credit Facility, Remaining Borrowing Capacity	17,900	17,900	18,700
Federal Reserve Discount Window
Loans and Leases Receivable Disclosure [Line Items]
Loans Pledged as Collateral	28,200	28,200	6,700
Line of Credit Facility, Remaining Borrowing Capacity	22,200	22,200	5,300
Credit Card and Consumer Banking | Performing
Loans and Leases Receivable Disclosure [Line Items]
TDRs	1,200	1,200	1,100
Commercial Banking | Performing
Loans and Leases Receivable Disclosure [Line Items]
TDRs	349	349	$ 224
Domestic credit card: | Credit Card
Loans and Leases Receivable Disclosure [Line Items]
Revolving loans converted to term during period	$ 89	$ 249

Loans - Loan Portfolio Composit

Loans - Loan Portfolio Composition and Aging Analysis (Detail) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Financing Receivable, Recorded Investment, Aging [Abstract]
Current	$ 245,722	$ 255,736
Past due	5,790	9,947
Total Loans	$ 251,512	$ 265,809
Financing Receivable, Recorded Investment, Aging, Percent of Total Loan [Abstract]
Current, percentage of total loans	97.70%	96.20%
Past due, percentage of total loans	2.30%	3.70%
Percentage of total loans	100.00%	100.00%
Unamortized premiums and discounts, deferred fees and costs	$ 1,100	$ 1,100
Credit Card
Financing Receivable, Recorded Investment, Aging [Abstract]
Current	104,355	123,134
Past due	2,955	5,009
Total Loans	107,310	128,236
Consumer Banking
Financing Receivable, Recorded Investment, Aging [Abstract]
Current	64,389	58,436
Past due	2,323	4,627
Total Loans	66,712	63,065
Consumer Banking | Auto
Financing Receivable, Recorded Investment, Aging [Abstract]
Current	61,043	55,778
Past due	2,276	4,584
Total Loans	63,319	60,362
Consumer Banking | Retail banking
Financing Receivable, Recorded Investment, Aging [Abstract]
Current	3,346	2,658
Past due	47	43
Total Loans	3,393	2,703
Commercial Banking
Financing Receivable, Recorded Investment, Aging [Abstract]
Current	76,978	74,166
Past due	512	311
Total Loans	77,490	74,508
Commercial Banking | Commercial and multifamily real estate
Financing Receivable, Recorded Investment, Aging [Abstract]
Current	30,667	30,157
Past due	286	67
Total Loans	30,953	30,245
Commercial Banking | Commercial and industrial
Financing Receivable, Recorded Investment, Aging [Abstract]
Current	46,311	44,009
Past due	226	244
Total Loans	46,537	44,263
PCI Loans
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due		$ 126
Financing Receivable, Recorded Investment, Aging, Percent of Total Loan [Abstract]
Percentage of total loans		0.10%
PCI Loans | Credit Card
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due		$ 93
PCI Loans | Consumer Banking
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due		2
PCI Loans | Consumer Banking | Auto
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due		0
PCI Loans | Consumer Banking | Retail banking
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due		2
PCI Loans | Commercial Banking
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Loans		31
PCI Loans | Commercial Banking | Total commercial lending
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due		31
PCI Loans | Commercial Banking | Commercial and multifamily real estate
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due		21
Total Loans		21
PCI Loans | Commercial Banking | Commercial and industrial
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due		10
Total Loans		10
30-59 days
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	$ 2,532	$ 4,444
Financing Receivable, Recorded Investment, Aging, Percent of Total Loan [Abstract]
Past due, percentage of total loans	1.00%	1.60%
30-59 days | Credit Card
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	$ 744	$ 1,474
30-59 days | Consumer Banking
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	1,537	2,852
30-59 days | Consumer Banking | Auto
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	1,517	2,828
30-59 days | Consumer Banking | Retail banking
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	20	24
Total Loans	20
30-59 days | Commercial Banking
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	251	118
30-59 days | Commercial Banking | Commercial and multifamily real estate
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	137	43
30-59 days | Commercial Banking | Commercial and industrial
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	114	75
60-89 days
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	$ 1,342	$ 2,537
Financing Receivable, Recorded Investment, Aging, Percent of Total Loan [Abstract]
Past due, percentage of total loans	0.50%	1.00%
60-89 days | Credit Card
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	$ 608	$ 1,122
60-89 days | Consumer Banking
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	593	1,369
60-89 days | Consumer Banking | Auto
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	582	1,361
60-89 days | Consumer Banking | Retail banking
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	11	8
Total Loans	11
60-89 days | Commercial Banking
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	141	46
60-89 days | Commercial Banking | Commercial and multifamily real estate
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	118	20
60-89 days | Commercial Banking | Commercial and industrial
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	23	26
Greater than 90 days
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	$ 1,916	$ 2,966
Financing Receivable, Recorded Investment, Aging, Percent of Total Loan [Abstract]
Past due, percentage of total loans	0.80%	1.10%
Greater than 90 days | Credit Card
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	$ 1,603	$ 2,413
Greater than 90 days | Consumer Banking
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	193	406
Greater than 90 days | Consumer Banking | Auto
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	177	395
Greater than 90 days | Consumer Banking | Retail banking
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	16	11
Total Loans	16
Greater than 90 days | Commercial Banking
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	120	147
Greater than 90 days | Commercial Banking | Commercial and multifamily real estate
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	31	4
Greater than 90 days | Commercial Banking | Commercial and industrial
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	89	143
Domestic credit card: | Credit Card
Financing Receivable, Recorded Investment, Aging [Abstract]
Current	96,666	113,857
Past due	2,724	4,656
Total Loans	99,390	118,606
Domestic credit card: | PCI Loans | Credit Card
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due		93
Domestic credit card: | 30-59 days | Credit Card
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	668	1,341
Total Loans	668
Domestic credit card: | 60-89 days | Credit Card
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	554	1,038
Total Loans	554
Domestic credit card: | Greater than 90 days | Credit Card
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	1,502	2,277
Total Loans	1,502
International card businesses: | Credit Card
Financing Receivable, Recorded Investment, Aging [Abstract]
Current	7,689	9,277
Past due	231	353
Total Loans	7,920	9,630
International card businesses: | PCI Loans | Credit Card
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due		0
International card businesses: | 30-59 days | Credit Card
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	76	133
Total Loans	76
International card businesses: | 60-89 days | Credit Card
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	54	84
Total Loans	54
International card businesses: | Greater than 90 days | Credit Card
Financing Receivable, Recorded Investment, Aging [Abstract]
Past due	101	$ 136
Total Loans	$ 101

Loans - 90+ Day Delinquent Loan

Loans - 90+ Day Delinquent Loans Accruing Interest and Nonperforming Loans (Detail) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020	Dec. 31, 2019
Financing Receivable, Past Due [Line Items]
90 Days Past Due and Accruing	$ 1,610	$ 1,610	$ 2,407
Nonperforming Loans	967	967	$ 983
Nonperforming Loans Without an Allowance	$ 324	$ 324
Percentage, 90 Days Past Due and Accruing	0.60%	0.60%	0.90%
Percentage, Nonperforming Loans	0.40%	0.40%	0.40%
Percentage, Nonperforming Loans Without an Allowance	0.10%	0.10%
Interest income for loans classified as nonperforming	$ 5	$ 11
Credit Card
Financing Receivable, Past Due [Line Items]
90 Days Past Due and Accruing	1,596	1,596	$ 2,407
Nonperforming Loans	23	23	25
Nonperforming Loans Without an Allowance	0	0
Credit Card | Domestic credit card:
Financing Receivable, Past Due [Line Items]
90 Days Past Due and Accruing	1,502	1,502	2,277
Nonperforming Loans Without an Allowance	0	0
Credit Card | International card businesses:
Financing Receivable, Past Due [Line Items]
90 Days Past Due and Accruing	94	94	130
Nonperforming Loans	23	23	25
Nonperforming Loans Without an Allowance	0	0
Consumer Banking
Financing Receivable, Past Due [Line Items]
90 Days Past Due and Accruing	0	0	0
Nonperforming Loans	284	284	510
Nonperforming Loans Without an Allowance	2	2
Consumer Banking | Auto
Financing Receivable, Past Due [Line Items]
90 Days Past Due and Accruing	0	0	0
Nonperforming Loans	260	260	487
Nonperforming Loans Without an Allowance	0	0
Consumer Banking | Retail banking
Financing Receivable, Past Due [Line Items]
90 Days Past Due and Accruing	0	0	0
Nonperforming Loans	24	24	23
Nonperforming Loans Without an Allowance	2	2
Commercial Banking
Financing Receivable, Past Due [Line Items]
90 Days Past Due and Accruing	14	14	0
Nonperforming Loans	660	660	448
Nonperforming Loans Without an Allowance	322	322
Commercial Banking | Commercial and multifamily real estate
Financing Receivable, Past Due [Line Items]
90 Days Past Due and Accruing	14	14	0
Nonperforming Loans	167	167	38
Nonperforming Loans Without an Allowance	162	162
Commercial Banking | Commercial and industrial
Financing Receivable, Past Due [Line Items]
90 Days Past Due and Accruing	0	0	0
Nonperforming Loans	493	493	$ 410
Nonperforming Loans Without an Allowance	$ 160	$ 160

Loans - Credit Card Delinquency

Loans - Credit Card Delinquency Status (Detail) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	$ 251,512	$ 265,809
Credit Card
Loans and Leases Receivable Disclosure [Line Items]
Revolving Loans	106,465
Revolving Loans Converted to Term	845
Total Loans	107,310	128,236
Domestic credit card: | Credit Card
Loans and Leases Receivable Disclosure [Line Items]
Revolving Loans	98,644
Revolving Loans Converted to Term	746
Total Loans	99,390	118,606
International card businesses: | Credit Card
Loans and Leases Receivable Disclosure [Line Items]
Revolving Loans	7,821
Revolving Loans Converted to Term	99
Total Loans	7,920	$ 9,630
Current | Domestic credit card: | Credit Card
Loans and Leases Receivable Disclosure [Line Items]
Revolving Loans	96,000
Revolving Loans Converted to Term	666
Total Loans	96,666
Current | International card businesses: | Credit Card
Loans and Leases Receivable Disclosure [Line Items]
Revolving Loans	7,625
Revolving Loans Converted to Term	64
Total Loans	7,689
30-59 days | Domestic credit card: | Credit Card
Loans and Leases Receivable Disclosure [Line Items]
Revolving Loans	637
Revolving Loans Converted to Term	31
Total Loans	668
30-59 days | International card businesses: | Credit Card
Loans and Leases Receivable Disclosure [Line Items]
Revolving Loans	66
Revolving Loans Converted to Term	10
Total Loans	76
60-89 days | Domestic credit card: | Credit Card
Loans and Leases Receivable Disclosure [Line Items]
Revolving Loans	532
Revolving Loans Converted to Term	22
Total Loans	554
60-89 days | International card businesses: | Credit Card
Loans and Leases Receivable Disclosure [Line Items]
Revolving Loans	43
Revolving Loans Converted to Term	11
Total Loans	54
Greater than 90 days | Domestic credit card: | Credit Card
Loans and Leases Receivable Disclosure [Line Items]
Revolving Loans	1,475
Revolving Loans Converted to Term	27
Total Loans	1,502
Greater than 90 days | International card businesses: | Credit Card
Loans and Leases Receivable Disclosure [Line Items]
Revolving Loans	87
Revolving Loans Converted to Term	14
Total Loans	$ 101

Loans Loans - Consumer Banking

Loans Loans - Consumer Banking Portfolio by Credit Quality Indicator (Detail) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans	$ 251,512	$ 265,809
Consumer Banking
Financing Receivable, Credit Quality Indicator [Line Items]
2020	16,338
2019	22,241
2018	13,038
2017	8,360
2016	4,076
Prior	1,855
Total Term Loans	65,908
Revolving Loans	795
Revolving Loans Converted to Term	9
Total Loans	66,712	63,065
Total Loans, Excluding PCI Loans		63,063
Auto | Consumer Banking
Financing Receivable, Credit Quality Indicator [Line Items]
2020	15,306
2019	22,004
2018	12,797
2017	8,112
2016	3,872
Prior	1,228
Total Term Loans	63,319
Revolving Loans	0
Revolving Loans Converted to Term	0
Total Loans	63,319	60,362
Total Loans, Excluding PCI Loans		60,362
Retail banking | Consumer Banking
Financing Receivable, Credit Quality Indicator [Line Items]
2020	1,032
2019	237
2018	241
2017	248
2016	204
Prior	627
Total Term Loans	2,589
Revolving Loans	795
Revolving Loans Converted to Term	9
Total Loans	3,393	2,703
Total Loans, Excluding PCI Loans		2,701
Loans under Paycheck Protection Program	931
Current | Retail banking | Consumer Banking
Financing Receivable, Credit Quality Indicator [Line Items]
2020	1,032
2019	237
2018	236
2017	243
2016	202
Prior	619
Total Term Loans	2,569
Revolving Loans	768
Revolving Loans Converted to Term	9
Total Loans	3,346
Total Loans, Excluding PCI Loans		2,658
30-59 days | Retail banking | Consumer Banking
Financing Receivable, Credit Quality Indicator [Line Items]
2020	0
2019	0
2018	0
2017	1
2016	0
Prior	4
Total Term Loans	5
Revolving Loans	15
Revolving Loans Converted to Term	0
Total Loans	20
Total Loans, Excluding PCI Loans		24
60-89 days | Retail banking | Consumer Banking
Financing Receivable, Credit Quality Indicator [Line Items]
2020	0
2019	0
2018	5
2017	1
2016	0
Prior	1
Total Term Loans	7
Revolving Loans	4
Revolving Loans Converted to Term	0
Total Loans	11
Total Loans, Excluding PCI Loans		8
Greater than 90 days | Retail banking | Consumer Banking
Financing Receivable, Credit Quality Indicator [Line Items]
2020	0
2019	0
2018	0
2017	3
2016	2
Prior	3
Total Term Loans	8
Revolving Loans	8
Revolving Loans Converted to Term	0
Total Loans	16
Total Loans, Excluding PCI Loans		11
Greater than 660 | Auto | Consumer Banking
Financing Receivable, Credit Quality Indicator [Line Items]
2020	6,968
2019	10,018
2018	6,099
2017	3,931
2016	1,879
Prior	519
Total Term Loans	29,414
Revolving Loans	0
Revolving Loans Converted to Term	0
Total Loans	29,414
Total Loans, Excluding PCI Loans		28,773
621-660 | Auto | Consumer Banking
Financing Receivable, Credit Quality Indicator [Line Items]
2020	3,028
2019	4,436
2018	2,549
2017	1,569
2016	721
Prior	233
Total Term Loans	12,536
Revolving Loans	0
Revolving Loans Converted to Term	0
Total Loans	12,536
Total Loans, Excluding PCI Loans		11,924
620 or below | Auto | Consumer Banking
Financing Receivable, Credit Quality Indicator [Line Items]
2020	5,310
2019	7,550
2018	4,149
2017	2,612
2016	1,272
Prior	476
Total Term Loans	21,369
Revolving Loans	0
Revolving Loans Converted to Term	0
Total Loans	$ 21,369
Total Loans, Excluding PCI Loans		$ 19,665

Loans - Commercial Banking_ Ris

Loans - Commercial Banking: Risk Profile by Internal Risk Rating (Detail) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Loans and Leases Receivable Disclosure [Line Items]
Total Loans	$ 251,512	$ 265,809
Commercial Banking
Loans and Leases Receivable Disclosure [Line Items]
2020	7,615
2019	16,642
2018	9,302
2017	5,720
2016	4,557
Prior	11,229
Total Term Loans	55,065
Revolving Loans	22,352
Revolving Loans Converted to Term	73
Total Loans	77,490	$ 74,508
Internal Risk, Percentage		100.00%
Loans under Paycheck Protection Program	231
Commercial Banking | PCI loans
Loans and Leases Receivable Disclosure [Line Items]
Total Loans		$ 31
Internal Risk, Percentage		0.00%
Commercial Banking | Noncriticized
Loans and Leases Receivable Disclosure [Line Items]
Total Loans		$ 71,848
Internal Risk, Percentage		96.50%
Commercial Banking | Criticized | Criticized performing
Loans and Leases Receivable Disclosure [Line Items]
Total Loans		$ 2,181
Internal Risk, Percentage		2.90%
Commercial Banking | Criticized | Criticized nonperforming
Loans and Leases Receivable Disclosure [Line Items]
Total Loans		$ 448
Internal Risk, Percentage		0.60%
Commercial Banking | Commercial and multifamily real estate
Loans and Leases Receivable Disclosure [Line Items]
2020	2,535
2019	5,664
2018	3,960
2017	2,211
2016	2,437
Prior	7,213
Total Term Loans	24,020
Revolving Loans	6,933
Revolving Loans Converted to Term	0
Total Loans	30,953	$ 30,245
Internal Risk, Percentage		100.00%
Commercial Banking | Commercial and multifamily real estate | PCI loans
Loans and Leases Receivable Disclosure [Line Items]
Total Loans		$ 21
Internal Risk, Percentage		0.10%
Commercial Banking | Commercial and multifamily real estate | Noncriticized
Loans and Leases Receivable Disclosure [Line Items]
2020	2,466
2019	5,490
2018	3,587
2017	2,000
2016	2,217
Prior	6,635
Total Term Loans	22,395
Revolving Loans	6,878
Revolving Loans Converted to Term	0
Total Loans	29,273	$ 29,625
Internal Risk, Percentage		97.90%
Commercial Banking | Commercial and multifamily real estate | Criticized | Criticized performing
Loans and Leases Receivable Disclosure [Line Items]
2020	69
2019	163
2018	343
2017	211
2016	216
Prior	456
Total Term Loans	1,458
Revolving Loans	55
Revolving Loans Converted to Term	0
Total Loans	1,513	$ 561
Internal Risk, Percentage		1.90%
Commercial Banking | Commercial and multifamily real estate | Criticized | Criticized nonperforming
Loans and Leases Receivable Disclosure [Line Items]
2020	0
2019	11
2018	30
2017	0
2016	4
Prior	122
Total Term Loans	167
Revolving Loans	0
Revolving Loans Converted to Term	0
Total Loans	167	$ 38
Internal Risk, Percentage		0.10%
Commercial Banking | Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
2020	5,080
2019	10,978
2018	5,342
2017	3,509
2016	2,120
Prior	4,016
Total Term Loans	31,045
Revolving Loans	15,419
Revolving Loans Converted to Term	73
Total Loans	46,537	$ 44,263
Internal Risk, Percentage		100.00%
Commercial Banking | Commercial and industrial | PCI loans
Loans and Leases Receivable Disclosure [Line Items]
Total Loans		$ 10
Internal Risk, Percentage		0.00%
Commercial Banking | Commercial and industrial | Noncriticized
Loans and Leases Receivable Disclosure [Line Items]
2020	4,879
2019	10,234
2018	4,758
2017	3,078
2016	1,998
Prior	3,814
Total Term Loans	28,761
Revolving Loans	12,774
Revolving Loans Converted to Term	73
Total Loans	41,608	$ 42,223
Internal Risk, Percentage		95.40%
Commercial Banking | Commercial and industrial | Criticized | Criticized performing
Loans and Leases Receivable Disclosure [Line Items]
2020	169
2019	668
2018	524
2017	371
2016	114
Prior	202
Total Term Loans	2,048
Revolving Loans	2,388
Revolving Loans Converted to Term	0
Total Loans	4,436	$ 1,620
Internal Risk, Percentage		3.70%
Commercial Banking | Commercial and industrial | Criticized | Criticized nonperforming
Loans and Leases Receivable Disclosure [Line Items]
2020	32
2019	76
2018	60
2017	60
2016	8
Prior	0
Total Term Loans	236
Revolving Loans	257
Revolving Loans Converted to Term	0
Total Loans	$ 493	$ 410
Internal Risk, Percentage		0.90%

Loans - Trouble Debt Restructur

Loans - Trouble Debt Restructurings (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans Modified	$ 412	$ 186	$ 704	$ 459
Credit Card
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans Modified	84	114	224	259
Consumer Banking
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans Modified	138	57	264	130
Consumer Banking | Auto
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans Modified	137	52	260	124
Consumer Banking | Retail banking
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans Modified	1	5	4	6
Commercial Banking
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans Modified	190	15	216	70
Commercial Banking | Total commercial lending
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans Modified		14		69
Commercial Banking | Commercial and multifamily real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans Modified	9		28	34
Commercial Banking | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans Modified	$ 181	14	$ 188	35
Commercial Banking | Small-ticket commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans Modified		$ 1		$ 1
Reduced Interest Rate
Financing Receivable, Troubled Debt Restructuring [Line Items]
% of TDR Activity	22.00%	75.00%	36.00%	75.00%
Average Rate Reduction	17.96%	17.45%	17.90%	15.78%
Reduced Interest Rate | Credit Card
Financing Receivable, Troubled Debt Restructuring [Line Items]
% of TDR Activity	100.00%	100.00%	100.00%	100.00%
Average Rate Reduction	19.14%	20.32%	19.94%	20.17%
Reduced Interest Rate | Consumer Banking
Financing Receivable, Troubled Debt Restructuring [Line Items]
% of TDR Activity	5.00%	42.00%	12.00%	39.00%
Average Rate Reduction	4.19%	3.93%	3.55%	3.90%
Reduced Interest Rate | Consumer Banking | Auto
Financing Receivable, Troubled Debt Restructuring [Line Items]
% of TDR Activity	5.00%	46.00%	12.00%	41.00%
Average Rate Reduction	4.12%	3.78%	3.51%	3.81%
Reduced Interest Rate | Consumer Banking | Retail banking
Financing Receivable, Troubled Debt Restructuring [Line Items]
% of TDR Activity	10.00%	9.00%	4.00%	10.00%
Average Rate Reduction	8.37%	10.55%	11.42%	10.91%
Reduced Interest Rate | Commercial Banking
Financing Receivable, Troubled Debt Restructuring [Line Items]
% of TDR Activity	0.00%	0.00%	0.00%	49.00%
Average Rate Reduction	0.00%	0.00%	0.00%	0.00%
Reduced Interest Rate | Commercial Banking | Total commercial lending
Financing Receivable, Troubled Debt Restructuring [Line Items]
% of TDR Activity		0.00%		49.00%
Average Rate Reduction		0.00%		0.00%
Reduced Interest Rate | Commercial Banking | Commercial and multifamily real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
% of TDR Activity	0.00%		0.00%	100.00%
Average Rate Reduction	0.00%		0.00%	0.00%
Reduced Interest Rate | Commercial Banking | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
% of TDR Activity	0.00%	0.00%	0.00%	0.00%
Average Rate Reduction	0.00%	0.00%	0.00%	0.00%
Reduced Interest Rate | Commercial Banking | Small-ticket commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
% of TDR Activity		0.00%		0.00%
Average Rate Reduction		0.00%		0.00%
Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
% of TDR Activity	57.00%	34.00%	52.00%	28.00%
Average Term Extension (Months)	5 months	7 months	5 months	6 months
Term Extension | Credit Card
Financing Receivable, Troubled Debt Restructuring [Line Items]
% of TDR Activity	0.00%	0.00%	0.00%	0.00%
Average Term Extension (Months)	0 months	0 months	0 months	0 months
Term Extension | Consumer Banking
Financing Receivable, Troubled Debt Restructuring [Line Items]
% of TDR Activity	95.00%	86.00%	93.00%	89.00%
Average Term Extension (Months)	3 months	8 months	4 months	7 months
Term Extension | Consumer Banking | Auto
Financing Receivable, Troubled Debt Restructuring [Line Items]
% of TDR Activity	95.00%	89.00%	95.00%	90.00%
Average Term Extension (Months)	3 months	8 months	4 months	7 months
Term Extension | Consumer Banking | Retail banking
Financing Receivable, Troubled Debt Restructuring [Line Items]
% of TDR Activity	59.00%	57.00%	15.00%	61.00%
Average Term Extension (Months)	4 months	3 months	4 months	3 months
Term Extension | Commercial Banking
Financing Receivable, Troubled Debt Restructuring [Line Items]
% of TDR Activity	55.00%	98.00%	57.00%	20.00%
Average Term Extension (Months)	8 months	3 months	9 months	0 months
Term Extension | Commercial Banking | Total commercial lending
Financing Receivable, Troubled Debt Restructuring [Line Items]
% of TDR Activity		100.00%		20.00%
Average Term Extension (Months)		3 months		1 month
Term Extension | Commercial Banking | Commercial and multifamily real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
% of TDR Activity	100.00%		100.00%	0.00%
Average Term Extension (Months)	7 months		10 months	0 months
Term Extension | Commercial Banking | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
% of TDR Activity	52.00%	100.00%	50.00%	40.00%
Average Term Extension (Months)	8 months	3 months	8 months	1 month
Term Extension | Commercial Banking | Small-ticket commercial real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
% of TDR Activity		0.00%		0.00%
Average Term Extension (Months)		0 months		0 months
Principal Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
% of TDR Activity	4.00%		2.00%
Gross Balance Reduction	$ 7		$ 7
Principal Forgiveness | Credit Card
Financing Receivable, Troubled Debt Restructuring [Line Items]
% of TDR Activity	0.00%		0.00%
Gross Balance Reduction	$ 0		$ 0
Principal Forgiveness | Consumer Banking
Financing Receivable, Troubled Debt Restructuring [Line Items]
% of TDR Activity	0.00%		0.00%
Gross Balance Reduction	$ 0		$ 0
Principal Forgiveness | Consumer Banking | Auto
Financing Receivable, Troubled Debt Restructuring [Line Items]
% of TDR Activity	0.00%		0.00%
Gross Balance Reduction	$ 0		$ 0
Principal Forgiveness | Consumer Banking | Retail banking
Financing Receivable, Troubled Debt Restructuring [Line Items]
% of TDR Activity	0.00%		0.00%
Gross Balance Reduction	$ 0		$ 0
Principal Forgiveness | Commercial Banking
Financing Receivable, Troubled Debt Restructuring [Line Items]
% of TDR Activity	8.00%		7.00%
Gross Balance Reduction	$ 7		$ 7
Principal Forgiveness | Commercial Banking | Commercial and multifamily real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
% of TDR Activity	0.00%		0.00%
Gross Balance Reduction	$ 0		$ 0
Principal Forgiveness | Commercial Banking | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
% of TDR Activity	9.00%		8.00%
Gross Balance Reduction	$ 7		$ 7
Domestic credit card: | Credit Card
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans Modified	$ 56	$ 74	$ 145	$ 172
Domestic credit card: | Reduced Interest Rate | Credit Card
Financing Receivable, Troubled Debt Restructuring [Line Items]
% of TDR Activity	100.00%	100.00%	100.00%	100.00%
Average Rate Reduction	15.41%	16.60%	16.05%	16.50%
Domestic credit card: | Term Extension | Credit Card
Financing Receivable, Troubled Debt Restructuring [Line Items]
% of TDR Activity	0.00%	0.00%	0.00%	0.00%
Average Term Extension (Months)	0 months	0 months	0 months	0 months
Domestic credit card: | Principal Forgiveness | Credit Card
Financing Receivable, Troubled Debt Restructuring [Line Items]
% of TDR Activity	0.00%		0.00%
Gross Balance Reduction	$ 0		$ 0
International card businesses: | Credit Card
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total Loans Modified	$ 28	$ 40	$ 79	$ 87
International card businesses: | Reduced Interest Rate | Credit Card
Financing Receivable, Troubled Debt Restructuring [Line Items]
% of TDR Activity	100.00%	100.00%	100.00%	100.00%
Average Rate Reduction	26.56%	27.25%	27.05%	27.44%
International card businesses: | Term Extension | Credit Card
Financing Receivable, Troubled Debt Restructuring [Line Items]
% of TDR Activity	0.00%	0.00%	0.00%	0.00%
Average Term Extension (Months)	0 months	0 months	0 months	0 months
International card businesses: | Principal Forgiveness | Credit Card
Financing Receivable, Troubled Debt Restructuring [Line Items]
% of TDR Activity	0.00%		0.00%
Gross Balance Reduction	$ 0		$ 0

Loans - TDR - Subsequent Defaul

Loans - TDR - Subsequent Defaults (Detail) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020USD ($)Contract	Jun. 30, 2019USD ($)Contract	Jun. 30, 2020USD ($)Contract	Jun. 30, 2019USD ($)Contract
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | Contract	27,954	31,082	57,979	62,928
Total Loans | $	$ 78	$ 71	$ 170	$ 141
Credit Card
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | Contract	27,090	29,766	55,833	60,499
Total Loans | $	$ 46	$ 54	$ 94	$ 111
Consumer Banking
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | Contract	863	1,316	2,139	2,429
Total Loans | $	$ 11	$ 17	$ 27	$ 30
Consumer Banking | Auto
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | Contract	860	1,312	2,135	2,417
Total Loans | $	$ 11	$ 16	$ 27	$ 29
Consumer Banking | Retail banking
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | Contract	3	4	4	12
Total Loans | $	$ 0	$ 1	$ 0	$ 1
Commercial Banking
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | Contract	1	0	7	0
Total Loans | $	$ 21	$ 0	$ 49	$ 0
Commercial Banking | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | Contract	1	0	7	0
Total Loans | $	$ 21	$ 0	$ 49	$ 0
Domestic credit card: | Credit Card
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | Contract	9,582	11,581	20,468	25,608
Total Loans | $	$ 21	$ 26	$ 43	$ 55
International card businesses: | Credit Card
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts | Contract	17,508	18,185	35,365	34,891
Total Loans | $	$ 25	$ 28	$ 51	$ 56

Allowance for Credit Losses a_3

Allowance for Credit Losses and Reserve for Unfunded Lending Commitments - Additional Information (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit loss	$ 16,832		$ 7,208
Allowance for credit losses
Accounts, Notes, Loans and Financing Receivable [Line Items]
Increase (Decrease) in Allowance for Credit Loss	9,600
Allowance for credit loss	$ 16,832	$ 14,073	$ 7,208	$ 7,133	$ 7,313	$ 7,220

Allowance for Credit Losses a_4

Allowance for Credit Losses and Reserve for Unfunded Lending Commitments - Allowance for Loan and Lease Losses and Reserve for Unfunded Lending Commitments Activity (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Allowance for Credit Losses [Roll Forward]
Balance at the beginning of the period			$ 7,208
Provision for credit losses	$ 4,246	$ 1,342	9,669	$ 3,035
Balance at the end of the period	16,832		16,832
Allowance for credit losses
Allowance for Credit Losses [Roll Forward]
Balance at the beginning of the period	14,073	7,313	7,208	7,220
Charge-offs	(2,131)	(2,157)	(4,588)	(4,430)
Recoveries	626	649	1,292	1,323
Net charge-offs	(1,505)	(1,508)	(3,296)	(3,107)
Provision for credit losses	4,252	1,329	9,619	3,013
Allowance build (release) for credit losses	2,747	(179)	6,323	(94)
Other changes	12	(1)	(6)	7
Balance at the end of the period	16,832	7,133	16,832	7,133
Allowance for credit losses | Cumulative effects from adoption of the CECL standard
Allowance for Credit Losses [Roll Forward]
Balance at the beginning of the period			2,845
Allowance for credit losses | Finance charge and fee reserve reclassification
Allowance for Credit Losses [Roll Forward]
Balance at the beginning of the period			462
Allowance for credit losses | Balance as of January 1, 2020
Allowance for Credit Losses [Roll Forward]
Balance at the beginning of the period			10,515
Reserve for unfunded lending commitments
Allowance for Credit Losses [Roll Forward]
Balance at the beginning of the period	223	131	135	122
Provision for credit losses	(5)	13	46	22
Balance at the end of the period	218	144	218	144
Reserve for unfunded lending commitments | Cumulative effects from adoption of the CECL standard
Allowance for Credit Losses [Roll Forward]
Balance at the beginning of the period			37
Reserve for unfunded lending commitments | Balance as of January 1, 2020
Allowance for Credit Losses [Roll Forward]
Balance at the beginning of the period			172
Combined allowance and reserve
Allowance for Credit Losses [Roll Forward]
Balance at the end of the period	17,050	7,277	17,050	7,277
Credit Card | Allowance for credit losses
Allowance for Credit Losses [Roll Forward]
Balance at the beginning of the period	10,346	5,568	5,395	5,535
Charge-offs	(1,612)	(1,711)	(3,461)	(3,493)
Recoveries	401	391	814	809
Net charge-offs	(1,211)	(1,320)	(2,647)	(2,684)
Provision for credit losses	2,944	1,095	6,646	2,484
Allowance build (release) for credit losses	1,733	(225)	3,999	(200)
Other changes	12	(1)	(6)	7
Balance at the end of the period	12,091	5,342	12,091	5,342
Credit Card | Allowance for credit losses | Cumulative effects from adoption of the CECL standard
Allowance for Credit Losses [Roll Forward]
Balance at the beginning of the period			2,241
Credit Card | Allowance for credit losses | Finance charge and fee reserve reclassification
Allowance for Credit Losses [Roll Forward]
Balance at the beginning of the period			462
Credit Card | Allowance for credit losses | Balance as of January 1, 2020
Allowance for Credit Losses [Roll Forward]
Balance at the beginning of the period			8,098
Credit Card | Reserve for unfunded lending commitments
Allowance for Credit Losses [Roll Forward]
Balance at the beginning of the period	0	0	0	0
Provision for credit losses	0	0	0	0
Balance at the end of the period	0	0	0	0
Credit Card | Reserve for unfunded lending commitments | Cumulative effects from adoption of the CECL standard
Allowance for Credit Losses [Roll Forward]
Balance at the beginning of the period			0
Credit Card | Reserve for unfunded lending commitments | Balance as of January 1, 2020
Allowance for Credit Losses [Roll Forward]
Balance at the beginning of the period			0
Credit Card | Combined allowance and reserve
Allowance for Credit Losses [Roll Forward]
Balance at the end of the period	12,091	5,342	12,091	5,342
Consumer Banking | Allowance for credit losses
Allowance for Credit Losses [Roll Forward]
Balance at the beginning of the period	2,154	1,062	1,038	1,048
Charge-offs	(416)	(423)	(912)	(894)
Recoveries	224	251	474	501
Net charge-offs	(192)	(172)	(438)	(393)
Provision for credit losses	876	165	1,736	400
Allowance build (release) for credit losses	684	(7)	1,298	7
Other changes	0	0	0	0
Balance at the end of the period	2,838	1,055	2,838	1,055
Consumer Banking | Allowance for credit losses | Cumulative effects from adoption of the CECL standard
Allowance for Credit Losses [Roll Forward]
Balance at the beginning of the period			502
Consumer Banking | Allowance for credit losses | Finance charge and fee reserve reclassification
Allowance for Credit Losses [Roll Forward]
Balance at the beginning of the period			0
Consumer Banking | Allowance for credit losses | Balance as of January 1, 2020
Allowance for Credit Losses [Roll Forward]
Balance at the beginning of the period			1,540
Consumer Banking | Reserve for unfunded lending commitments
Allowance for Credit Losses [Roll Forward]
Balance at the beginning of the period	0	4	5	4
Provision for credit losses	0	0	0	0
Balance at the end of the period	0	4	0	4
Consumer Banking | Reserve for unfunded lending commitments | Cumulative effects from adoption of the CECL standard
Allowance for Credit Losses [Roll Forward]
Balance at the beginning of the period			(5)
Consumer Banking | Reserve for unfunded lending commitments | Balance as of January 1, 2020
Allowance for Credit Losses [Roll Forward]
Balance at the beginning of the period			0
Consumer Banking | Combined allowance and reserve
Allowance for Credit Losses [Roll Forward]
Balance at the end of the period	2,838	1,059	2,838	1,059
Commercial Banking | Allowance for credit losses
Allowance for Credit Losses [Roll Forward]
Balance at the beginning of the period	1,573	683	775	637
Charge-offs	(103)	(23)	(215)	(43)
Recoveries	1	7	4	13
Net charge-offs	(102)	(16)	(211)	(30)
Provision for credit losses	432	69	1,237	129
Allowance build (release) for credit losses	330	53	1,026	99
Other changes	0	0	0	0
Balance at the end of the period	1,903	736	1,903	736
Commercial Banking | Allowance for credit losses | Cumulative effects from adoption of the CECL standard
Allowance for Credit Losses [Roll Forward]
Balance at the beginning of the period			102
Commercial Banking | Allowance for credit losses | Finance charge and fee reserve reclassification
Allowance for Credit Losses [Roll Forward]
Balance at the beginning of the period			0
Commercial Banking | Allowance for credit losses | Balance as of January 1, 2020
Allowance for Credit Losses [Roll Forward]
Balance at the beginning of the period			877
Commercial Banking | Reserve for unfunded lending commitments
Allowance for Credit Losses [Roll Forward]
Balance at the beginning of the period	223	127	130	118
Provision for credit losses	(5)	13	46	22
Balance at the end of the period	218	140	218	140
Commercial Banking | Reserve for unfunded lending commitments | Cumulative effects from adoption of the CECL standard
Allowance for Credit Losses [Roll Forward]
Balance at the beginning of the period			42
Commercial Banking | Reserve for unfunded lending commitments | Balance as of January 1, 2020
Allowance for Credit Losses [Roll Forward]
Balance at the beginning of the period			172
Commercial Banking | Combined allowance and reserve
Allowance for Credit Losses [Roll Forward]
Balance at the end of the period	$ 2,121	$ 876	$ 2,121	$ 876

Allowance for Credit Losses a_5

Allowance for Credit Losses and Reserve for Unfunded Lending Commitments - Summary of Loss Sharing Arrangements (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Amounts estimated to be charged to partners which reduced provision for credit losses	$ 4,246	$ 1,342	$ 9,669	$ 3,035
Loss sharing agreements
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Expected reimbursement from loss sharing partners, beginning balance	2,653	442	2,166	379
Amounts due from partners which reduced net charge-offs	(293)	(105)	(595)	(213)
Amounts estimated to be charged to partners which reduced provision for credit losses	73	77	862	248
Expected reimbursement from loss sharing partners, ending balance	$ 2,433	$ 414	$ 2,433	$ 414

Variable Interest Entities an_3

Variable Interest Entities and Securitizations - Additional Information (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Variable Interest Entity [Line Items]
Amortization method qualified affordable housing investments, amortization	$ 285	$ 279
Affordable housing tax credits	622	$ 355
Amortization method qualified affordable housing investments	4,500		$ 4,400
Qualified affordable housing investments, commitment	1,500		1,500
Carrying Amount of Assets	421,296		390,365
VIE, reporting entity involvement, maximum loss exposure	5,348		5,413
Affordable housing entities
Variable Interest Entity [Line Items]
VIE, reporting entity involvement, maximum loss exposure	4,553		4,559
Entities that provide capital to low-income and rural communities
Variable Interest Entity [Line Items]
VIE, reporting entity involvement, maximum loss exposure	0		0
Other
Variable Interest Entity [Line Items]
VIE, reporting entity involvement, maximum loss exposure	476		502
Unconsolidated
Variable Interest Entity [Line Items]
Carrying Amount of Assets	5,085		5,127
Unconsolidated | Affordable housing entities
Variable Interest Entity [Line Items]
Total assets of the unconsolidated VIE investment funds	10,800		10,900
Carrying Amount of Assets	4,553		4,559
Unconsolidated | Entities that provide capital to low-income and rural communities
Variable Interest Entity [Line Items]
Carrying Amount of Assets	0		0
Unconsolidated | Other
Variable Interest Entity [Line Items]
Carrying Amount of Assets	476		502
Consolidated
Variable Interest Entity [Line Items]
Carrying Amount of Assets	30,404		35,519
Consolidated | Affordable housing entities
Variable Interest Entity [Line Items]
Carrying Amount of Assets	248		236
Consolidated | Entities that provide capital to low-income and rural communities
Variable Interest Entity [Line Items]
Carrying Amount of Assets	2,030		1,889
Consolidated | Other
Variable Interest Entity [Line Items]
Carrying Amount of Assets	$ 0		$ 0

Variable Interest Entities an_4

Variable Interest Entities and Securitizations - Carrying Amount of Consolidated and Unconsolidated VIEs (Detail) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Variable Interest Entity [Line Items]
Maximum Exposure to Loss	$ 5,348	$ 5,413
Carrying Amount of Assets	421,296	390,365
Carrying Amount of Liabilities	365,251	332,354
Affordable housing entities
Variable Interest Entity [Line Items]
Maximum Exposure to Loss	4,553	4,559
VIE, nonconsolidated, carrying amount of assets included in certain investment structures	2,300	2,300
VIE, nonconsolidated, carrying amount of liabilities included in certain investment structures	652	741
Entities that provide capital to low-income and rural communities
Variable Interest Entity [Line Items]
Maximum Exposure to Loss	0	0
Other
Variable Interest Entity [Line Items]
Maximum Exposure to Loss	476	502
Total other VIEs
Variable Interest Entity [Line Items]
Maximum Exposure to Loss	5,029	5,061
Credit card loan securitizations
Variable Interest Entity [Line Items]
Maximum Exposure to Loss	0	0
Auto loan securitizations
Variable Interest Entity [Line Items]
Maximum Exposure to Loss	0	0
Home loan
Variable Interest Entity [Line Items]
Maximum Exposure to Loss	319	352
Total securitization-related VIEs
Variable Interest Entity [Line Items]
Maximum Exposure to Loss	319	352
Consolidated
Variable Interest Entity [Line Items]
Carrying Amount of Assets	30,404	35,519
Carrying Amount of Liabilities	15,890	18,201
Consolidated | Affordable housing entities
Variable Interest Entity [Line Items]
Carrying Amount of Assets	248	236
Carrying Amount of Liabilities	18	7
Consolidated | Entities that provide capital to low-income and rural communities
Variable Interest Entity [Line Items]
Carrying Amount of Assets	2,030	1,889
Carrying Amount of Liabilities	69	69
Consolidated | Other
Variable Interest Entity [Line Items]
Carrying Amount of Assets	0	0
Carrying Amount of Liabilities	0	0
Consolidated | Total other VIEs
Variable Interest Entity [Line Items]
Carrying Amount of Assets	2,278	2,125
Carrying Amount of Liabilities	87	76
Consolidated | Credit card loan securitizations
Variable Interest Entity [Line Items]
Carrying Amount of Assets	25,119	31,112
Carrying Amount of Liabilities	13,141	16,113
Consolidated | Auto loan securitizations
Variable Interest Entity [Line Items]
Carrying Amount of Assets	3,007	2,282
Carrying Amount of Liabilities	2,662	2,012
Consolidated | Home loan
Variable Interest Entity [Line Items]
Carrying Amount of Assets	0	0
Carrying Amount of Liabilities	0	0
Consolidated | Total securitization-related VIEs
Variable Interest Entity [Line Items]
Carrying Amount of Assets	28,126	33,394
Carrying Amount of Liabilities	15,803	18,125
Unconsolidated
Variable Interest Entity [Line Items]
Carrying Amount of Assets	5,085	5,127
Carrying Amount of Liabilities	1,262	1,289
Unconsolidated | Affordable housing entities
Variable Interest Entity [Line Items]
Carrying Amount of Assets	4,553	4,559
Carrying Amount of Liabilities	1,262	1,289
Unconsolidated | Entities that provide capital to low-income and rural communities
Variable Interest Entity [Line Items]
Carrying Amount of Assets	0	0
Carrying Amount of Liabilities	0	0
Unconsolidated | Other
Variable Interest Entity [Line Items]
Carrying Amount of Assets	476	502
Carrying Amount of Liabilities	0	0
Unconsolidated | Total other VIEs
Variable Interest Entity [Line Items]
Carrying Amount of Assets	5,029	5,061
Carrying Amount of Liabilities	1,262	1,289
Unconsolidated | Credit card loan securitizations
Variable Interest Entity [Line Items]
Carrying Amount of Assets	0	0
Carrying Amount of Liabilities	0	0
Unconsolidated | Auto loan securitizations
Variable Interest Entity [Line Items]
Carrying Amount of Assets	0	0
Carrying Amount of Liabilities	0	0
Unconsolidated | Home loan
Variable Interest Entity [Line Items]
Carrying Amount of Assets	56	66
Carrying Amount of Liabilities	0	0
Unconsolidated | Total securitization-related VIEs
Variable Interest Entity [Line Items]
Carrying Amount of Assets	56	66
Carrying Amount of Liabilities	$ 0	$ 0

Variable Interest Entities an_5

Variable Interest Entities and Securitizations - Continuing Involvement in Securitization Related VIEs (Detail) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Credit Card
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]
Securities held by third-party investors, non-mortgage	$ 13,102	$ 15,798
Receivables in the trust, non-mortgage	26,317	31,625
Cash balance of spread or reserve accounts, non-mortgage	0	0
Auto
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]
Securities held by third-party investors, non-mortgage	2,659	2,010
Receivables in the trust, non-mortgage	2,885	2,192
Cash balance of spread or reserve accounts, non-mortgage	10	7
Home Loan
Qualitative and Quantitative Information, Transferor's Continuing Involvement [Line Items]
Securities held by third-party investors, mortgage	872	962
Receivables in the trust, mortgage	882	978
Cash balance of spread or reserve accounts, mortgage	$ 16	$ 17

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense for amortizable intangible assets	$ 16	$ 29	$ 38	$ 59

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets - Components (Detail) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Schedule of Intangible Assets by Major Class [Line Items]
Goodwill, gross	$ 14,645	$ 14,653
Goodwill	14,645	14,653
Intangible assets, gross (excluding Goodwill)	2,181	2,178
Accumulated amortization	(2,041)	(2,004)
Intangible assets, net (excluding Goodwill)	140	174
Intangible assets gross including Goodwill	16,826	16,831
Total goodwill and other intangible assets, net carrying value	14,785	14,827
Commercial MSRs, gross	611	555
Commercial MSR, accumulated amortization	(289)	(255)
Total commercial MSRs	322	300
PCCR intangibles
Schedule of Intangible Assets by Major Class [Line Items]
Intangible assets, gross (excluding Goodwill)	1,932	1,932
Accumulated amortization	(1,887)	(1,864)
Intangible assets, net (excluding Goodwill)	45	68
Other intangible assets
Schedule of Intangible Assets by Major Class [Line Items]
Intangible assets, gross (excluding Goodwill)	249	246
Accumulated amortization	(154)	(140)
Intangible assets, net (excluding Goodwill)	$ 95	$ 106

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets - Goodwill Business Segments (Detail) $ in Millions	6 Months Ended
	Jun. 30, 2020USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 14,653
Other adjustments	(8)
Goodwill, ending balance	14,645
Credit Card
Goodwill [Roll Forward]
Goodwill, beginning balance	5,088
Other adjustments	(8)
Goodwill, ending balance	5,080
Consumer Banking
Goodwill [Roll Forward]
Goodwill, beginning balance	4,645
Other adjustments	0
Goodwill, ending balance	4,645
Commercial Banking
Goodwill [Roll Forward]
Goodwill, beginning balance	4,920
Other adjustments	0
Goodwill, ending balance	$ 4,920

Deposits and Borrowings - Depos

Deposits and Borrowings - Deposits and Short-term Borrowings (Detail) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019
Deposits:
Non-interest-bearing deposits	$ 29,055	$ 23,488
Interest-bearing deposits	275,183	239,209
Total deposits	304,238	262,697	$ 254,535
Short-term borrowings
Short-term borrowings	573	7,314
Time deposits, at or above FDIC insurance limit	5,900	6,500
Federal funds purchased and securities loaned or sold under agreements to repurchase
Short-term borrowings
Short-term borrowings	573	314
FHLB advances
Short-term borrowings
Short-term borrowings	$ 0	$ 7,000

Deposits and Borrowings - Long-

Deposits and Borrowings - Long-Term Debt (Detail) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Total long-term debt	$ 44,327	$ 48,383
Total short-term borrowings and long-term debt	44,900	55,697
EUR denominated unsecured notes	28,481	30,472
Euro
Debt Instrument [Line Items]
EUR denominated unsecured notes	$ 1,400	1,400
Securitized debt obligations
Debt Instrument [Line Items]
Weighted average interest rate	1.77%
Carrying value	$ 15,761	17,808
Total senior and subordinated notes
Debt Instrument [Line Items]
Carrying value	$ 28,481	30,472
Senior notes | Total unsecured senior debt
Debt Instrument [Line Items]
Weighted average interest rate	2.65%
Carrying value	$ 23,709	25,997
Senior notes | Fixed unsecured senior debt
Debt Instrument [Line Items]
Weighted average interest rate	2.81%
Carrying value	$ 21,701	23,302
Senior notes | Floating unsecured senior debt
Debt Instrument [Line Items]
Weighted average interest rate	1.01%
Carrying value	$ 2,008	2,695
Subordinated notes | Fixed unsecured subordinated debt
Debt Instrument [Line Items]
Weighted average interest rate	3.78%
Carrying value	$ 4,772	4,475
Finance lease liabilities
Debt Instrument [Line Items]
Weighted average interest rate	3.71%
Carrying value	$ 85	103
Total other long-term borrowings
Debt Instrument [Line Items]
Carrying value	$ 85	$ 103
Minimum | Securitized debt obligations
Debt Instrument [Line Items]
Stated interest rates	0.53%
Minimum | Senior notes | Fixed unsecured senior debt
Debt Instrument [Line Items]
Stated interest rates	0.80%
Minimum | Senior notes | Floating unsecured senior debt
Debt Instrument [Line Items]
Stated interest rates	0.81%
Minimum | Subordinated notes | Fixed unsecured subordinated debt
Debt Instrument [Line Items]
Stated interest rates	3.38%
Minimum | Finance lease liabilities
Debt Instrument [Line Items]
Stated interest rates	1.63%
Maximum | Securitized debt obligations
Debt Instrument [Line Items]
Stated interest rates	3.01%
Maximum | Senior notes | Fixed unsecured senior debt
Debt Instrument [Line Items]
Stated interest rates	4.75%
Maximum | Senior notes | Floating unsecured senior debt
Debt Instrument [Line Items]
Stated interest rates	1.91%
Maximum | Subordinated notes | Fixed unsecured subordinated debt
Debt Instrument [Line Items]
Stated interest rates	4.20%
Maximum | Finance lease liabilities
Debt Instrument [Line Items]
Stated interest rates	9.91%

Derivative Instruments and He_3

Derivative Instruments and Hedging Activities - Additional Information (Detail) $ in Millions	6 Months Ended
	Jun. 30, 2020USD ($)
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Gain (net after-tax) recorded in AOCI related to derivatives designated as cash flow hedges expected to be reclassified to earnings over the next 12 months	$ 649
Maximum length of time over which forecasted transactions were hedged, years	7 years

Derivative Instruments and He_4

Derivative Instruments and Hedging Activities - Derivative Assets and Liabilities at Fair Value (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Derivatives, Fair Value [Line Items]
Notional or contractual amount	$ 269,784	$ 255,546
Derivative assets, gross amount	4,835	1,729
Derivative liabilities, gross amount	2,214	1,197
Derivative asset, netting adjustments	(2,226)	(633)
Derivative liability, netting adjustments	(754)	(523)
Total derivative assets	2,609	1,096
Total derivative liabilities	1,460	674
Net valuation allowance on derivative assets and liabilities for non-performance risk	33	12
Derivatives designated as accounting hedges
Derivatives, Fair Value [Line Items]
Notional or contractual amount	172,000	164,821
Derivative assets, gross amount	1,102	332
Derivative liabilities, gross amount	110	305
Derivatives designated as accounting hedges | Interest rate contracts
Derivatives, Fair Value [Line Items]
Notional or contractual amount	163,361	154,487
Derivative assets, gross amount	1,005	332
Derivative liabilities, gross amount	33	84
Derivatives designated as accounting hedges | Interest rate contracts | Fair value hedges
Derivatives, Fair Value [Line Items]
Notional or contractual amount	48,761	57,587
Derivative assets, gross amount	3	11
Derivative liabilities, gross amount	20	55
Derivatives designated as accounting hedges | Interest rate contracts | Cash flow hedges
Derivatives, Fair Value [Line Items]
Notional or contractual amount	114,600	96,900
Derivative assets, gross amount	1,002	321
Derivative liabilities, gross amount	13	29
Derivatives designated as accounting hedges | Foreign exchange contracts
Derivatives, Fair Value [Line Items]
Notional or contractual amount	8,639	10,334
Derivative assets, gross amount	97	0
Derivative liabilities, gross amount	77	221
Derivatives designated as accounting hedges | Foreign exchange contracts | Fair value hedges
Derivatives, Fair Value [Line Items]
Notional or contractual amount	1,404	1,402
Derivative assets, gross amount	20	0
Derivative liabilities, gross amount	0	6
Derivatives designated as accounting hedges | Foreign exchange contracts | Cash flow hedges
Derivatives, Fair Value [Line Items]
Notional or contractual amount	4,639	6,103
Derivative assets, gross amount	50	0
Derivative liabilities, gross amount	63	113
Derivatives designated as accounting hedges | Foreign exchange contracts | Net investment hedges
Derivatives, Fair Value [Line Items]
Notional or contractual amount	2,596	2,829
Derivative assets, gross amount	27	0
Derivative liabilities, gross amount	14	102
Derivatives not designated as accounting hedges
Derivatives, Fair Value [Line Items]
Notional or contractual amount	97,784	90,725
Derivative assets, gross amount	3,733	1,397
Derivative liabilities, gross amount	2,104	892
Derivatives not designated as accounting hedges | Customer accommodation
Derivatives, Fair Value [Line Items]
Notional or contractual amount	89,907	82,434
Derivative assets, gross amount	3,645	1,349
Derivative liabilities, gross amount	2,015	853
Derivatives not designated as accounting hedges | Interest rate contracts | Customer accommodation
Derivatives, Fair Value [Line Items]
Notional or contractual amount	68,707	62,268
Derivative assets, gross amount	1,721	552
Derivative liabilities, gross amount	224	117
Derivatives not designated as accounting hedges | Interest rate contracts | Other interest rate exposures
Derivatives, Fair Value [Line Items]
Notional or contractual amount	6,263	6,729
Derivative assets, gross amount	87	48
Derivative liabilities, gross amount	81	30
Derivatives not designated as accounting hedges | Foreign exchange contracts | Customer accommodation
Derivatives, Fair Value [Line Items]
Notional or contractual amount	3,816	4,674
Derivative assets, gross amount	48	39
Derivative liabilities, gross amount	52	42
Derivatives not designated as accounting hedges | Commodity contracts | Customer accommodation
Derivatives, Fair Value [Line Items]
Notional or contractual amount	17,384	15,492
Derivative assets, gross amount	1,876	758
Derivative liabilities, gross amount	1,739	694
Derivatives not designated as accounting hedges | Other contracts
Derivatives, Fair Value [Line Items]
Notional or contractual amount	1,614	1,562
Derivative assets, gross amount	1	0
Derivative liabilities, gross amount	$ 8	$ 9

Derivative Instruments and He_5

Derivative Instruments and Hedging Activities - Hedged Items in Fair Value Hedging Relationship (Detail) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Hedged Items In Fair Value Hedging Relationship [Line Items]
Amortized cost of closed prepayment assets		$ 5,900
Amortized cost of closed prepayable assets, designated hedged items		3,100
Hedged assets cumulative basis adjustment	$ 212	75
Available-for-sale securities
Hedged Items In Fair Value Hedging Relationship [Line Items]
Carrying Amount of Assets	4,858	10,825
Hedged Assets, Fair Value Hedge, Cumulative Increase (Decrease)	660	300
Hedged Assets, Discontinued Fair Value Hedge, Cumulative Increase (Decrease)	212	52
Interest-bearing deposits
Hedged Items In Fair Value Hedging Relationship [Line Items]
Carrying Amount Of Liabilities	(14,851)	(14,310)
Hedged Liabilities, Fair Value Hedge, Cumulative Increase (Decrease)	(306)	(12)
Hedged Liabilities, Discontinued Fair Value Hedge, Cumulative Increase (Decrease)	0	0
Securitized debt obligations
Hedged Items In Fair Value Hedging Relationship [Line Items]
Carrying Amount Of Liabilities	(10,011)	(9,403)
Hedged Liabilities, Fair Value Hedge, Cumulative Increase (Decrease)	(248)	44
Hedged Liabilities, Discontinued Fair Value Hedge, Cumulative Increase (Decrease)	42	64
Senior and subordinated notes
Hedged Items In Fair Value Hedging Relationship [Line Items]
Carrying Amount Of Liabilities	(22,620)	(27,777)
Hedged Liabilities, Fair Value Hedge, Cumulative Increase (Decrease)	(1,533)	(458)
Hedged Liabilities, Discontinued Fair Value Hedge, Cumulative Increase (Decrease)	$ (732)	$ 324

Derivative Instruments and He_6

Derivative Instruments and Hedging Activities - Offsetting Assets (Detail) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Derivative assets
Derivative assets, gross amount	$ 4,835	$ 1,729
Derivative assets, offsetting financial instruments	(702)	(347)
Derivative assets, offsetting cash collateral	(1,524)	(286)
Total derivative assets	2,609	1,096
Derivative assets, securities not netted	0	0
Net Exposure	2,609	1,096
Derivative, collateral, obligation to return cash	1,700	347
Derivative, collateral, obligation to return securities	1	1
Derivative, collateral, right to reclaim cash	$ 1,300	$ 954

Derivative Instruments and He_7

Derivative Instruments and Hedging Activities - Offsetting Liabilities (Detail) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Derivative liabilities
Derivative liabilities, gross amount	$ 2,214	$ 1,197
Derivative liabilities, offsetting financial instruments	(702)	(347)
Derivative liabilities, offsetting cash collateral	(52)	(176)
Total derivative liabilities	1,460	674
Derivative liabilities, securities collateral not netted	0	0
Net exposure	1,460	674
Repurchase agreements
Gross amounts	573	314
Repurchase agreements, securities sold, offset	0	0
Repurchase agreements, cash collateral pledged, offset	0	0
Net amounts as recognized	573	314
Repurchase agreements, securities collateral not netted	(573)	(314)
Net exposure	0	0
Derivative, collateral, obligation to return cash	1,700	347
Derivative, collateral, obligation to return securities	1	1
Derivative, collateral, right to reclaim cash	1,300	954
Securities sold under repurchase agreements, fair value of collateral	$ 584	$ 320

Derivative Instruments and He_8

Derivative Instruments and Hedging Activities - Effects of Fair Value and Cash Flow Hedge Accounting (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Interest and dividend income, securities	$ 482	$ 629	$ 1,012	$ 1,284
Interest and fee income, loans	5,820	6,383	12,362	12,751
Interest and dividend income, other	16	64	53	133
Deposits	(611)	(870)	(1,342)	(1,687)
Securitized debt obligations	(56)	(139)	(155)	(282)
Senior and subordinated notes	(180)	(310)	(419)	(624)
Non-interest income	166	191	311	348
Amortization of basis adjustment	17	56	53	117
Non interest income - Other
Derivative Instruments, Gain (Loss) [Line Items]
Realized losses (gains) on foreign exchange contracts reclassified from AOCI	299	123	(93)	295
Fair value hedges | Interest income - Investment securities
Derivative Instruments, Gain (Loss) [Line Items]
Net income (expense) recognized on fair value hedges	(21)	(2)	(32)	(1)
Fair value hedges | Interest income - Loans
Derivative Instruments, Gain (Loss) [Line Items]
Net income (expense) recognized on fair value hedges	0	0	0	0
Fair value hedges | Interest income - Other
Derivative Instruments, Gain (Loss) [Line Items]
Net income (expense) recognized on fair value hedges	0	0	0	0
Fair value hedges | Interest expense - Deposits
Derivative Instruments, Gain (Loss) [Line Items]
Net income (expense) recognized on fair value hedges	26	(30)	25	(63)
Fair value hedges | Interest expense - Securitized Debt Obligation
Derivative Instruments, Gain (Loss) [Line Items]
Net income (expense) recognized on fair value hedges	27	(29)	29	(59)
Fair value hedges | Interest expense - Senior and Subordinated Debt
Derivative Instruments, Gain (Loss) [Line Items]
Net income (expense) recognized on fair value hedges	64	(50)	79	(100)
Fair value hedges | Non interest income - Other
Derivative Instruments, Gain (Loss) [Line Items]
Net income (expense) recognized on fair value hedges	0	1	0	1
Fair value hedges | Interest rate contracts | Interest income - Investment securities
Derivative Instruments, Gain (Loss) [Line Items]
Interest recognized on derivatives	(17)	(1)	(28)	1
Gains (losses) recognized on derivatives	(26)	(175)	(364)	(286)
Gains (losses) recognized on hedged items	22	174	360	284
Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net	0		0
Fair value hedges | Interest rate contracts | Interest income - Loans
Derivative Instruments, Gain (Loss) [Line Items]
Interest recognized on derivatives	0	0	0	0
Gains (losses) recognized on derivatives	0	0	0	0
Gains (losses) recognized on hedged items	0	0	0	0
Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net	0		0
Fair value hedges | Interest rate contracts | Interest income - Other
Derivative Instruments, Gain (Loss) [Line Items]
Interest recognized on derivatives	0	0	0	0
Gains (losses) recognized on derivatives	0	0	0	0
Gains (losses) recognized on hedged items	0	0	0	0
Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net	0		0
Fair value hedges | Interest rate contracts | Interest expense - Deposits
Derivative Instruments, Gain (Loss) [Line Items]
Interest recognized on derivatives	27	(33)	25	(69)
Gains (losses) recognized on derivatives	9	154	296	249
Gains (losses) recognized on hedged items	(10)	(151)	(296)	(243)
Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net	0		0
Fair value hedges | Interest rate contracts | Interest expense - Securitized Debt Obligation
Derivative Instruments, Gain (Loss) [Line Items]
Interest recognized on derivatives	40	(6)	52	(12)
Gains (losses) recognized on derivatives	(13)	79	269	112
Gains (losses) recognized on hedged items	0	(102)	(292)	(159)
Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net	0		0
Fair value hedges | Interest rate contracts | Interest expense - Senior and Subordinated Debt
Derivative Instruments, Gain (Loss) [Line Items]
Interest recognized on derivatives	71	(10)	110	(21)
Gains (losses) recognized on derivatives	61	471	1,129	752
Gains (losses) recognized on hedged items	(68)	(511)	(1,159)	(831)
Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net	0		(1)
Fair value hedges | Interest rate contracts | Non interest income - Other
Derivative Instruments, Gain (Loss) [Line Items]
Interest recognized on derivatives	0	0	0	0
Gains (losses) recognized on derivatives	26	11	3	11
Gains (losses) recognized on hedged items	(26)	(10)	(3)	(10)
Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net	0		0
Cash flow hedges | Interest income - Investment securities
Derivative Instruments, Gain (Loss) [Line Items]
Net income recognized on cash flow hedges	7	(3)	9	(7)
Cash flow hedges | Interest income - Loans
Derivative Instruments, Gain (Loss) [Line Items]
Net income recognized on cash flow hedges	135	(59)	159	(115)
Cash flow hedges | Interest income - Other
Derivative Instruments, Gain (Loss) [Line Items]
Net income recognized on cash flow hedges	2	13	9	25
Cash flow hedges | Interest expense - Deposits
Derivative Instruments, Gain (Loss) [Line Items]
Net income recognized on cash flow hedges	0	0	0	0
Cash flow hedges | Interest expense - Securitized Debt Obligation
Derivative Instruments, Gain (Loss) [Line Items]
Net income recognized on cash flow hedges	0	0	0	0
Cash flow hedges | Interest expense - Senior and Subordinated Debt
Derivative Instruments, Gain (Loss) [Line Items]
Net income recognized on cash flow hedges	0	0	0	0
Cash flow hedges | Non interest income - Other
Derivative Instruments, Gain (Loss) [Line Items]
Net income recognized on cash flow hedges	(2)	(1)	(2)	(1)
Cash flow hedges | Interest rate contracts | Interest income - Investment securities
Derivative Instruments, Gain (Loss) [Line Items]
Reclassification adjustment from AOCI on derivatives, net of tax	7	(3)	9	(7)
Cash flow hedges | Interest rate contracts | Interest income - Loans
Derivative Instruments, Gain (Loss) [Line Items]
Reclassification adjustment from AOCI on derivatives, net of tax	135	(59)	159	(115)
Cash flow hedges | Interest rate contracts | Interest income - Other
Derivative Instruments, Gain (Loss) [Line Items]
Reclassification adjustment from AOCI on derivatives, net of tax	0	0	0	0
Cash flow hedges | Interest rate contracts | Interest expense - Deposits
Derivative Instruments, Gain (Loss) [Line Items]
Reclassification adjustment from AOCI on derivatives, net of tax	0	0	0	0
Cash flow hedges | Interest rate contracts | Interest expense - Securitized Debt Obligation
Derivative Instruments, Gain (Loss) [Line Items]
Reclassification adjustment from AOCI on derivatives, net of tax	0	0	0	0
Cash flow hedges | Interest rate contracts | Interest expense - Senior and Subordinated Debt
Derivative Instruments, Gain (Loss) [Line Items]
Reclassification adjustment from AOCI on derivatives, net of tax	0	0	0	0
Cash flow hedges | Interest rate contracts | Non interest income - Other
Derivative Instruments, Gain (Loss) [Line Items]
Reclassification adjustment from AOCI on derivatives, net of tax	0	0	0	0
Cash flow hedges | Foreign exchange contracts | Interest income - Investment securities
Derivative Instruments, Gain (Loss) [Line Items]
Reclassification adjustment from AOCI on derivatives, net of tax	0	0	0	0
Cash flow hedges | Foreign exchange contracts | Interest income - Loans
Derivative Instruments, Gain (Loss) [Line Items]
Reclassification adjustment from AOCI on derivatives, net of tax	0	0	0	0
Cash flow hedges | Foreign exchange contracts | Interest income - Other
Derivative Instruments, Gain (Loss) [Line Items]
Reclassification adjustment from AOCI on derivatives, net of tax	2	13	9	25
Cash flow hedges | Foreign exchange contracts | Interest expense - Deposits
Derivative Instruments, Gain (Loss) [Line Items]
Reclassification adjustment from AOCI on derivatives, net of tax	0	0	0	0
Cash flow hedges | Foreign exchange contracts | Interest expense - Securitized Debt Obligation
Derivative Instruments, Gain (Loss) [Line Items]
Reclassification adjustment from AOCI on derivatives, net of tax	0	0	0	0
Cash flow hedges | Foreign exchange contracts | Interest expense - Senior and Subordinated Debt
Derivative Instruments, Gain (Loss) [Line Items]
Reclassification adjustment from AOCI on derivatives, net of tax	0	0	0	0
Cash flow hedges | Foreign exchange contracts | Non interest income - Other
Derivative Instruments, Gain (Loss) [Line Items]
Reclassification adjustment from AOCI on derivatives, net of tax	$ (2)	$ (1)	$ (2)	$ (1)

Derivative Instruments and He_9

Derivative Instruments and Hedging Activities - Gains Losses on Freestanding Derivatives (Detail) - Other non-interest income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivatives not designated as accounting hedges	$ (34)	$ 1	$ 16	$ 10
Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivatives not designated as accounting hedges	(1)	15	32	26
Interest rate contracts | Customer accommodation
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivatives not designated as accounting hedges	(1)	4	12	10
Interest rate contracts | Other interest rate exposures
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivatives not designated as accounting hedges	(34)	(14)	(16)	(14)
Commodity contracts | Customer accommodation
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivatives not designated as accounting hedges	(1)	7	16	9
Foreign exchange contracts | Customer accommodation
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivatives not designated as accounting hedges	1	4	4	7
Other contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on derivatives not designated as accounting hedges	$ 1	$ 0	$ 0	$ (2)

Stockholders' Equity - Preferre

Stockholders' Equity - Preferred Stock Outstanding (Details) $ / shares in Units, $ in Millions	6 Months Ended
	Jun. 30, 2020USD ($)$ / sharesshares	Dec. 31, 2019USD ($)
Class of Stock [Line Items]
Preferred Stock, Including Additional Paid in Capital, Net of Discount	$ 5,209	$ 4,853
Depository Share, Percent Interest in Preferred Stock	0.025
Series B Preferred Stock
Class of Stock [Line Items]
Per Annum Dividend Rate	6.00%
Liquidation Preference per Share | $ / shares	$ 1,000
Total Shares Outstanding as of June 30, 2020 | shares	0
Preferred Stock, Including Additional Paid in Capital, Net of Discount	$ 0	853
Series E Preferred Stock
Class of Stock [Line Items]
Per Annum Dividend Rate	5.55%
Liquidation Preference per Share | $ / shares	$ 1,000
Total Shares Outstanding as of June 30, 2020 | shares	1,000,000
Preferred Stock, Including Additional Paid in Capital, Net of Discount	$ 988	988
Preferred Stock, Dividend Payment Rate, Variable	Libor + 380 bps
Preferred Stock Dividend Rate, Variable	3.80%
Series F Preferred Stock
Class of Stock [Line Items]
Per Annum Dividend Rate	6.20%
Liquidation Preference per Share | $ / shares	$ 1,000
Total Shares Outstanding as of June 30, 2020 | shares	500,000
Preferred Stock, Including Additional Paid in Capital, Net of Discount	$ 484	484
Series G Preferred Stock
Class of Stock [Line Items]
Per Annum Dividend Rate	5.20%
Liquidation Preference per Share | $ / shares	$ 1,000
Total Shares Outstanding as of June 30, 2020 | shares	600,000
Preferred Stock, Including Additional Paid in Capital, Net of Discount	$ 583	583
Series H Preferred Stock
Class of Stock [Line Items]
Per Annum Dividend Rate	6.00%
Liquidation Preference per Share | $ / shares	$ 1,000
Total Shares Outstanding as of June 30, 2020 | shares	500,000
Preferred Stock, Including Additional Paid in Capital, Net of Discount	$ 483	483
Series I Preferred Stock
Class of Stock [Line Items]
Per Annum Dividend Rate	5.00%
Liquidation Preference per Share | $ / shares	$ 1,000
Total Shares Outstanding as of June 30, 2020 | shares	1,500,000
Preferred Stock, Including Additional Paid in Capital, Net of Discount	$ 1,462	1,462
Series J Preferred Stock
Class of Stock [Line Items]
Per Annum Dividend Rate	4.80%
Liquidation Preference per Share | $ / shares	$ 1,000
Total Shares Outstanding as of June 30, 2020 | shares	1,250,000
Preferred Stock, Including Additional Paid in Capital, Net of Discount	$ 1,209	$ 0

Stockholders' Equity - Accumula

Stockholders' Equity - Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
AOCI beginning balance			$ 1,156
Other comprehensive income (loss), net of tax	$ 302	$ 830	2,833	$ 1,433
AOCI ending balance	3,981		3,981
Accumulated Net Unrealized Investment Gain (Loss) | Securities Available for Sale
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
AOCI beginning balance	2,151	(147)	935	(439)
Other comprehensive income (loss) before reclassifications	222	284	1,446	594
Amounts reclassified from AOCI into earnings	0	(12)	0	(30)
Other comprehensive income (loss), net of tax	222	272	1,446	564
AOCI ending balance	2,373	125	2,373	125
Accumulated Net Unrealized Investment Gain (Loss) | Securities Held to Maturity
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
AOCI beginning balance		(184)		(190)
Other comprehensive income (loss) before reclassifications		0		0
Amounts reclassified from AOCI into earnings		6		12
Other comprehensive income (loss), net of tax		6		12
AOCI ending balance		(178)		(178)
Hedging Relationships
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
AOCI beginning balance	1,728	(141)	354	(418)
Other comprehensive income (loss) before reclassifications	(60)	406	1,635	517
Amounts reclassified from AOCI into earnings	117	131	(204)	297
Other comprehensive income (loss), net of tax	57	537	1,431	814
AOCI ending balance	1,785	396	1,785	396
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
AOCI beginning balance	(174)	(147)	(107)	(177)
Other comprehensive income (loss) before reclassifications	23	15	(44)	45
Amounts reclassified from AOCI into earnings	0	0	0	0
Other comprehensive income (loss), net of tax	23	15	(44)	45
AOCI ending balance	(151)	(132)	(151)	(132)
Other
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
AOCI beginning balance	(26)	(41)	(26)	(39)
Other comprehensive income (loss) before reclassifications	0	0	0	(1)
Amounts reclassified from AOCI into earnings	0	0	0	(1)
Other comprehensive income (loss), net of tax	0	0	0	(2)
AOCI ending balance	(26)	(41)	(26)	(41)
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
AOCI beginning balance	3,679	(660)	1,156	(1,263)
Other comprehensive income (loss) before reclassifications	185	705	3,037	1,155
Amounts reclassified from AOCI into earnings	117	125	(204)	278
Other comprehensive income (loss), net of tax	302	830	2,833	1,433
AOCI ending balance	3,981	170	3,981	170
Net investment hedges
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Gains (losses) recorded in AOCI	$ (8)	$ 53	134	$ 19
Cumulative effects from adoption of the CECL standard | Accumulated Net Unrealized Investment Gain (Loss) | Securities Available for Sale
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
AOCI beginning balance			(8)
Cumulative effects from adoption of the CECL standard | Hedging Relationships
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
AOCI beginning balance			0
Cumulative effects from adoption of the CECL standard | Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
AOCI beginning balance			0
Cumulative effects from adoption of the CECL standard | Other
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
AOCI beginning balance			0
Cumulative effects from adoption of the CECL standard | Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
AOCI beginning balance			$ (8)

Stockholders' Equity - Reclassi

Stockholders' Equity - Reclassifications from AOCI (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest income	$ 5,460	$ 5,746	$ 11,485	$ 11,537
Interest expense	858	1,330	1,942	2,631
Non-interest income	166	191	311	348
Income (loss) from continuing operations before income taxes	(1,460)	2,003	(3,363)	3,722
Income tax provision (benefit)	(543)	387	(1,106)	696
Net income (loss)	(918)	1,625	(2,258)	3,037
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net income (loss)	(117)	(125)	204	(278)
Accumulated Net Unrealized Investment Gain (Loss) | Reclassification out of Accumulated Other Comprehensive Income [Member] | Available-for-sale securities
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Non-interest income	0	15	0	39
Income tax provision (benefit)	0	3	0	9
Net income (loss)	0	12	0	30
Accumulated Net Unrealized Investment Gain (Loss) | Reclassification out of Accumulated Other Comprehensive Income [Member] | Securities Held to Maturity
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest income	0	(8)	0	(16)
Income tax provision (benefit)	0	(2)	0	(4)
Net income (loss)	0	(6)	0	(12)
Hedging Relationships | Reclassification out of Accumulated Other Comprehensive Income [Member] | Interest rate contracts
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest income	142	(62)	168	(122)
Hedging Relationships | Reclassification out of Accumulated Other Comprehensive Income [Member] | Foreign exchange contracts
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest income	2	13	9	25
Interest expense	(1)	0	(2)	0
Non-interest income	(299)	(123)	93	(295)
Income (loss) from continuing operations before income taxes	(156)	(172)	268	(392)
Income tax provision (benefit)	(39)	(41)	64	(95)
Net income (loss)	(117)	(131)	204	(297)
Other | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income (loss) from continuing operations before income taxes	0	0	0	1
Income tax provision (benefit)	0	0	0	0
Net income (loss)	$ 0	$ 0	$ 0	$ 1

Stockholders' Equity - Other Co

Stockholders' Equity - Other Comprehensive Income (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Before Tax
Net unrealized gains (losses) on securities available for sale	$ 292	$ 358	$ 1,902	$ 742
Net unrealized gains (losses) on hedging relationships	76	708	1,884	1,073
Foreign currency translation adjustments	20	33	(1)	52
Net changes in securities held to maturity	0	9		16
Other	0	(1)	0	(3)
Other comprehensive income (loss), before tax	388	1,107	3,785	1,880
Provision (Benefit)
Net unrealized gains (losses) on securities available for sale	70	86	456	178
Net unrealized gains (losses) on hedging relationships	19	171	453	259
Foreign currency translation adjustments	(3)	18	43	7
Net changes in securities held to maturity	0	3	0	4
Other	0	(1)	0	(1)
Other comprehensive income (loss), provision (benefit)	86	277	952	447
After Tax
Net unrealized gains (losses) on securities available for sale	222	272	1,446	564
Net unrealized gains (losses) on hedging relationships	57	537	1,431	814
Foreign currency translation adjustments	23	15	(44)	45
Net changes in securities held to maturity	0	6	0	12
Other	0	0	0	(2)
Other comprehensive income, net of tax	$ 302	$ 830	$ 2,833	$ 1,433

Earnings Per Common Share - Add

Earnings Per Common Share - Additional Information (Detail) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Award
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive options excluded from the computation of diluted earnings per share (in shares)	362,000		956,000
Stock option
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive options excluded from the computation of diluted earnings per share (in shares)	2,600,000	0	2,700,000	137,000
Maximum exercise price range	$ 86.34		$ 86.34
Minimum exercise price range	$ 45.75		$ 36.55	$ 86.34

Earnings Per Common Share - Com

Earnings Per Common Share - Computation of Basic and Diluted Earnings Per Common Share (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Income (loss) from continuing operations, net of tax	$ (917)	$ 1,616	$ (2,257)	$ 3,026
Income (loss) from discontinued operations, net of tax	(1)	9	(1)	11
Net income (loss)	(918)	1,625	(2,258)	3,037
Dividends and undistributed earnings allocated to participating securities	(1)	(12)	(4)	(24)
Preferred stock dividends	(90)	(80)	(145)	(132)
Issuance cost for redeemed preferred stock	0	0	(22)	0
Net income (loss) available to common stockholders	$ (1,009)	$ 1,533	$ (2,429)	$ 2,881
Total weighted-average basic shares outstanding	456,700,000	470,800,000	457,100,000	470,100,000
Effect of dilutive securities:
Stock options	0	1,300,000	0	1,200,000
Other contingently issuable shares	0	900,000	0	1,000,000
Total effect of dilutive securities	0	2,200,000	0	2,200,000
Total weighted-average diluted shares outstanding	456,700,000	473,000,000	457,100,000	472,300,000
Basic earnings per common share:
Net income (loss) from continuing operations (in dollars per share)	$ (2.21)	$ 3.24	$ (5.31)	$ 6.11
Income from discontinued operations	0	0.02	0	0.02
Net income (loss) per basic common share (in dollars per share)	(2.21)	3.26	(5.31)	6.13
Diluted earnings per common share:
Net income (loss) from continuing operations (in dollars per share)	(2.21)	3.22	(5.31)	6.08
Income from discontinued operations (in dollars per share)	0	0.02	0	0.02
Net income (loss) per diluted common share (in dollars per share)	$ (2.21)	$ 3.24	$ (5.31)	$ 6.10
Stock option
Diluted earnings per common share:
Anti-dilutive options excluded from the computation of diluted earnings per share (in shares)	2,600,000	0	2,700,000	137,000

Fair Value Measurement - Additi

Fair Value Measurement - Additional Information (Detail) - Non-Recoverable Rate - Level 3 - Appraisal value	Jun. 30, 2020	Dec. 31, 2019
Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for investment, measurement input	0.00%	0.00%
Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for investment, measurement input	15.00%	50.00%
Weighted average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for investment, measurement input	3.00%	6.00%

Fair Value Measurement - Assets

Fair Value Measurement - Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2019
Assets:
Securities available for sale (amortized cost of $84.7 billion and allowance for credit losses of $3 million as of June 30, 2020)	$ 87,859	$ 79,213
Loans held for sale	668	251
Derivative assets, gross amount	4,835	1,729
Derivative asset, netting adjustments	(2,226)	(633)
Derivative asset	2,609	1,096
Liabilities:
Derivative liabilities, gross amount	2,214	1,197
Derivative liability, netting adjustments	(754)	(523)
Derivative liability	1,460	674
Net valuation allowance	33	12
Level 1
Assets:
Loans held for sale	0	0
Level 2
Assets:
Loans held for sale	43	149
Level 3
Assets:
Loans held for sale	0	0
Recurring
Assets:
Securities available for sale (amortized cost of $84.7 billion and allowance for credit losses of $3 million as of June 30, 2020)	87,859	79,213
Loans held for sale	668	251
Derivative asset	2,609	1,096
Other assets	404	410
Total assets	91,540	80,970
Liabilities:
Derivative liability	1,460	674
Recurring | Level 1
Assets:
Securities available for sale (amortized cost of $84.7 billion and allowance for credit losses of $3 million as of June 30, 2020)	4,556	4,355
Loans held for sale	0	0
Derivative assets, gross amount	301	84
Other assets	348	344
Total assets	5,205	4,783
Other assets:
Deferred compensation plan assets	347	343
Equity securities	1	1
Liabilities:
Derivative liabilities, gross amount	220	17
Recurring | Level 2
Assets:
Securities available for sale (amortized cost of $84.7 billion and allowance for credit losses of $3 million as of June 30, 2020)	82,547	74,416
Loans held for sale	668	251
Derivative assets, gross amount	4,383	1,568
Other assets	0	0
Total assets	87,598	76,235
Liabilities:
Derivative liabilities, gross amount	1,877	1,129
Recurring | Level 3
Assets:
Securities available for sale (amortized cost of $84.7 billion and allowance for credit losses of $3 million as of June 30, 2020)	756	442
Loans held for sale	0	0
Derivative assets, gross amount	151	77	$ 70
Other assets	56	66
Total assets	963	585
Other assets:
Retained interests in securitizations	56	66
Liabilities:
Derivative liabilities, gross amount	117	51	$ 64
U.S. Treasury securities
Assets:
Securities available for sale (amortized cost of $84.7 billion and allowance for credit losses of $3 million as of June 30, 2020)	4,362	4,124
U.S. Treasury securities | Recurring
Assets:
Securities available for sale (amortized cost of $84.7 billion and allowance for credit losses of $3 million as of June 30, 2020)	4,362	4,124
U.S. Treasury securities | Recurring | Level 1
Assets:
Securities available for sale (amortized cost of $84.7 billion and allowance for credit losses of $3 million as of June 30, 2020)	4,362	4,124
U.S. Treasury securities | Recurring | Level 2
Assets:
Securities available for sale (amortized cost of $84.7 billion and allowance for credit losses of $3 million as of June 30, 2020)	0	0
U.S. Treasury securities | Recurring | Level 3
Assets:
Securities available for sale (amortized cost of $84.7 billion and allowance for credit losses of $3 million as of June 30, 2020)	0	0
RMBS
Assets:
Securities available for sale (amortized cost of $84.7 billion and allowance for credit losses of $3 million as of June 30, 2020)	72,014	64,338
RMBS | Recurring
Assets:
Securities available for sale (amortized cost of $84.7 billion and allowance for credit losses of $3 million as of June 30, 2020)	72,014	64,338
RMBS | Recurring | Level 1
Assets:
Securities available for sale (amortized cost of $84.7 billion and allowance for credit losses of $3 million as of June 30, 2020)	0	0
RMBS | Recurring | Level 2
Assets:
Securities available for sale (amortized cost of $84.7 billion and allowance for credit losses of $3 million as of June 30, 2020)	71,540	63,909
RMBS | Recurring | Level 3
Assets:
Securities available for sale (amortized cost of $84.7 billion and allowance for credit losses of $3 million as of June 30, 2020)	474	429
CMBS | Recurring
Assets:
Securities available for sale (amortized cost of $84.7 billion and allowance for credit losses of $3 million as of June 30, 2020)	10,400	9,426
CMBS | Recurring | Level 1
Assets:
Securities available for sale (amortized cost of $84.7 billion and allowance for credit losses of $3 million as of June 30, 2020)	0	0
CMBS | Recurring | Level 2
Assets:
Securities available for sale (amortized cost of $84.7 billion and allowance for credit losses of $3 million as of June 30, 2020)	10,118	9,413
CMBS | Recurring | Level 3
Assets:
Securities available for sale (amortized cost of $84.7 billion and allowance for credit losses of $3 million as of June 30, 2020)	282	13
Other securities
Assets:
Securities available for sale (amortized cost of $84.7 billion and allowance for credit losses of $3 million as of June 30, 2020)	1,083	1,325
Other securities | Recurring
Assets:
Securities available for sale (amortized cost of $84.7 billion and allowance for credit losses of $3 million as of June 30, 2020)	1,083	1,325
Other securities | Recurring | Level 1
Assets:
Securities available for sale (amortized cost of $84.7 billion and allowance for credit losses of $3 million as of June 30, 2020)	194	231
Other securities | Recurring | Level 2
Assets:
Securities available for sale (amortized cost of $84.7 billion and allowance for credit losses of $3 million as of June 30, 2020)	889	1,094
Other securities | Recurring | Level 3
Assets:
Securities available for sale (amortized cost of $84.7 billion and allowance for credit losses of $3 million as of June 30, 2020)	$ 0	$ 0

Fair Value Measurement - Level

Fair Value Measurement - Level 3 Recurring Fair Value Rollfoward (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Jan. 01, 2020	Dec. 31, 2019
Derivative, Fair Value, Net [Abstract]
Fair value of RMBS, cumulative effects from the CECL adoption					$ 4
Derivative assets, gross amount	$ 4,835		$ 4,835			$ 1,729
Derivative liabilities, gross amount	2,214		2,214			1,197
Recurring | Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Net Unrealized Gains (Losses) Included in OCI Related to Assets and Liabilities Still Held	36	$ 3	(23)	$ 13
Derivative, Fair Value, Net [Abstract]
Beginning balance	66	6	26	(10)
Total Gains or (Losses) (Realized/Unrealized), Included in Net Income	(8)	0	12	5
Total Gains or (Losses) (Realized/Unrealized), Included in OCI	0	0	0	0
Purchases	0	0	0	0
Sales	0	0	0	0
Issuances	2	(7)	26	(13)
Settlements	(26)	8	(28)	27
Transfers Into Level 3	0	0	0	0
Transfers Out of Level 3	0	(1)	(2)	(3)
Ending balance	34	6	34	6
Derivative assets, gross amount	151	70	151	70		77
Derivative liabilities, gross amount	117	64	117	64		$ 51
RMBS | Recurring | Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	373	434	433	433
Total Gains or (Losses) (Realized/Unrealized), Included in Net Income	6	9	9	17
Total Gains or (Losses) (Realized/Unrealized), Included in OCI	29	2	(24)	13
Purchases	0	0	0	0
Sales	0	0	0	0
Issuances	0	0	0	0
Settlements	(16)	(13)	(33)	(25)
Transfers Into Level 3	131	97	140	114
Transfers Out of Level 3	(49)	(14)	(51)	(37)
Ending balance	474	515	474	515
Net Unrealized Gains (Losses) Included in Net Income Related to Assets and Liabilities Still Held	7	10	10	20
CMBS | Recurring | Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	36	9	13	10
Total Gains or (Losses) (Realized/Unrealized), Included in Net Income	0	0	0	0
Total Gains or (Losses) (Realized/Unrealized), Included in OCI	(1)	0	(1)	0
Purchases	0	0	0	0
Sales	0	0	0	0
Issuances	0	0	0	0
Settlements	(3)	0	(3)	(1)
Transfers Into Level 3	250	0	273	0
Transfers Out of Level 3	0	0	0	0
Ending balance	282	9	282	9
Net Unrealized Gains (Losses) Included in Net Income Related to Assets and Liabilities Still Held	(3)	0	(3)	0
Available-for-sale securities | Recurring | Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	409	443	446	443
Total Gains or (Losses) (Realized/Unrealized), Included in Net Income	6	9	9	17
Total Gains or (Losses) (Realized/Unrealized), Included in OCI	28	2	(25)	13
Purchases	0	0	0	0
Sales	0	0	0	0
Issuances	0	0	0	0
Settlements	(19)	(13)	(36)	(26)
Transfers Into Level 3	381	97	413	114
Transfers Out of Level 3	(49)	(14)	(51)	(37)
Ending balance	756	524	756	524
Net Unrealized Gains (Losses) Included in Net Income Related to Assets and Liabilities Still Held	4	10	7	20
Retained interest in securitizations | Recurring | Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	59	155	66	158
Total Gains or (Losses) (Realized/Unrealized), Included in Net Income	(3)	22	(10)	19
Total Gains or (Losses) (Realized/Unrealized), Included in OCI	0	0	0	0
Purchases	0	0	0	0
Sales	0	0	0	0
Issuances	0	0	0	0
Settlements	0	0	0	0
Transfers Into Level 3	0	0	0	0
Transfers Out of Level 3	0	0	0	0
Ending balance	56	177	56	177
Net Unrealized Gains (Losses) Included in Net Income Related to Assets and Liabilities Still Held	(3)	22	(10)	19
Net derivative assets (liabilities) | Recurring | Level 3
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Net Unrealized Gains (Losses) Included in Net Income Related to Assets and Liabilities Still Held	$ 0	$ (2)	$ 18	$ 4

Fair Value Measurement - Quanti

Fair Value Measurement - Quantitative Information about Level 3 Fair Value Measurements (Detail) $ in Millions	Jun. 30, 2020USD ($)	Dec. 31, 2019USD ($)	Mar. 31, 2020USD ($)	Jun. 30, 2019USD ($)	Mar. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available for sale (amortized cost of $84.7 billion and allowance for credit losses of $3 million as of June 30, 2020)	$ 87,859	$ 79,213
Recurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available for sale (amortized cost of $84.7 billion and allowance for credit losses of $3 million as of June 30, 2020)	87,859	79,213
Recurring | Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available for sale (amortized cost of $84.7 billion and allowance for credit losses of $3 million as of June 30, 2020)	756	442
Retained interests in securitizations	56	66
Net derivative assets (liabilities)	34	26	$ 66	$ 6	$ 6	$ (10)
RMBS
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available for sale (amortized cost of $84.7 billion and allowance for credit losses of $3 million as of June 30, 2020)	72,014	64,338
RMBS | Recurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available for sale (amortized cost of $84.7 billion and allowance for credit losses of $3 million as of June 30, 2020)	72,014	64,338
RMBS | Recurring | Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available for sale (amortized cost of $84.7 billion and allowance for credit losses of $3 million as of June 30, 2020)	474	429
CMBS | Recurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available for sale (amortized cost of $84.7 billion and allowance for credit losses of $3 million as of June 30, 2020)	10,400	9,426
CMBS | Recurring | Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available for sale (amortized cost of $84.7 billion and allowance for credit losses of $3 million as of June 30, 2020)	$ 282	$ 13
Yield | RMBS | Recurring | Level 3 | Discounted cash flows | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input	0	0.02
Yield | RMBS | Recurring | Level 3 | Discounted cash flows | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input	0.12	0.18
Yield | RMBS | Recurring | Level 3 | Discounted cash flows | Weighted average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input	0.04	0.05
Yield | CMBS | Recurring | Level 3 | Discounted cash flows | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input	0.01	0.02
Yield | CMBS | Recurring | Level 3 | Discounted cash flows | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input	0.02	0.03
Yield | CMBS | Recurring | Level 3 | Discounted cash flows | Weighted average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input	0.01	0.02
Voluntary prepayment rate | Recurring | Level 3 | Discounted cash flows | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Retained interests, measurement input	0.03	0.04
Voluntary prepayment rate | Recurring | Level 3 | Discounted cash flows | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Retained interests, measurement input	0.14	0.14
Voluntary prepayment rate | RMBS | Recurring | Level 3 | Discounted cash flows | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input	0.05	0
Voluntary prepayment rate | RMBS | Recurring | Level 3 | Discounted cash flows | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input	0.10	0.18
Voluntary prepayment rate | RMBS | Recurring | Level 3 | Discounted cash flows | Weighted average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input	0.08	0.10
Default rate | Recurring | Level 3 | Discounted cash flows | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Retained interests, measurement input	0.03	0.02
Default rate | Recurring | Level 3 | Discounted cash flows | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Retained interests, measurement input	0.04	0.03
Default rate | RMBS | Recurring | Level 3 | Discounted cash flows | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input	0.01	0.01
Default rate | RMBS | Recurring | Level 3 | Discounted cash flows | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input	0.11	0.06
Default rate | RMBS | Recurring | Level 3 | Discounted cash flows | Weighted average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input	0.02	0.02
Loss severity | Recurring | Level 3 | Discounted cash flows | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Retained interests, measurement input	0.70	0.74
Loss severity | Recurring | Level 3 | Discounted cash flows | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Retained interests, measurement input	0.72	0.88
Loss severity | RMBS | Recurring | Level 3 | Discounted cash flows | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input	0.30	0.30
Loss severity | RMBS | Recurring | Level 3 | Discounted cash flows | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input	1	0.95
Loss severity | RMBS | Recurring | Level 3 | Discounted cash flows | Weighted average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Securities available-for-sale, measurement input	0.67	0.67
Life of receivables (months) | Recurring | Level 3 | Discounted cash flows | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Retained interests, measurement input, life of receivables	33 months	35 months
Life of receivables (months) | Recurring | Level 3 | Discounted cash flows | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Retained interests, measurement input, life of receivables	52 months	51 months
Discount rate | Recurring | Level 3 | Discounted cash flows | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Retained interests, measurement input	0.02	0.03
Discount rate | Recurring | Level 3 | Discounted cash flows | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Retained interests, measurement input	0.12	0.10
Swap rates | Recurring | Level 3 | Discounted cash flows | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Net derivative assets (liabilities), measurement input	0.01	0.02
Swap rates | Recurring | Level 3 | Discounted cash flows | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Net derivative assets (liabilities), measurement input	0.01	0.02
Swap rates | Recurring | Level 3 | Discounted cash flows | Weighted average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Net derivative assets (liabilities), measurement input	0.01	0.02

Fair Value Measurement - Nonrec

Fair Value Measurement - Nonrecurring Fair Value Measurements (Detail) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net loans held for investment	$ 0	$ 0
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net loans held for investment	242,893	258,696
Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net loans held for investment	289	294
Other assets	52	103
Total assets	341	397
Nonrecurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net loans held for investment	0	0
Other assets	0	0
Total assets	0	0
Nonrecurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net loans held for investment	289	294
Other assets	52	103
Total assets	341	397
Equity investments accounted for under measurement alternative	28	5
Foreclosed property and repossessed assets, fair value disclosure	23	61
Long lived assets held for sale	$ 1	$ 37

Fair Value Measurement - Nonr_2

Fair Value Measurement - Nonrecurring Fair Value Measurements Included in Earnings (Detail) - Nonrecurring - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for investment	$ (253)	$ (132)
Loans held for sale	0	(1)
Other assets	(22)	(57)
Total	$ (275)	$ (190)

Fair Value Measurement - Fair V

Fair Value Measurement - Fair Value of Financial Instruments (Detail) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Financial assets:
Loans held for sale	$ 668	$ 251
Level 1
Financial assets:
Cash and cash equivalents	4,583	4,129
Restricted cash for securitization investors	740	342
Net loans held for investment	0	0
Loans held for sale	0	0
Interest receivable	0	0
Other investments	0	0
Financial liabilities:
Deposits with defined maturities	0	0
Securitized debt obligations	0	0
Senior and subordinated notes	0	0
Federal funds purchased and securities loaned or sold under agreements to repurchase	0	0
Other borrowings		0
Interest payable	0	0
Level 2
Financial assets:
Cash and cash equivalents	51,235	9,278
Restricted cash for securitization investors	0	0
Net loans held for investment	0	0
Loans held for sale	43	149
Interest receivable	1,574	1,758
Other investments	1,341	1,638
Financial liabilities:
Deposits with defined maturities	44,452	45,225
Securitized debt obligations	15,933	17,941
Senior and subordinated notes	28,771	31,233
Federal funds purchased and securities loaned or sold under agreements to repurchase	573	314
Other borrowings		7,001
Interest payable	380	439
Level 3
Financial assets:
Cash and cash equivalents	0	0
Restricted cash for securitization investors	0	0
Net loans held for investment	242,893	258,696
Loans held for sale	0	0
Interest receivable	0	0
Other investments	0	0
Financial liabilities:
Deposits with defined maturities	0	0
Securitized debt obligations	0	0
Senior and subordinated notes	0	0
Federal funds purchased and securities loaned or sold under agreements to repurchase	0	0
Other borrowings		0
Interest payable	0	0
Carrying Value
Financial assets:
Cash and cash equivalents	55,818	13,407
Restricted cash for securitization investors	740	342
Net loans held for investment	234,680	258,601
Loans held for sale	43	149
Interest receivable	1,574	1,758
Other investments	1,341	1,638
Financial liabilities:
Deposits with defined maturities	43,912	44,958
Securitized debt obligations	15,761	17,808
Senior and subordinated notes	28,481	30,472
Federal funds purchased and securities loaned or sold under agreements to repurchase	573	314
Other borrowings		7,000
Interest payable	380	439
Estimated Fair Value
Financial assets:
Cash and cash equivalents	55,818	13,407
Restricted cash for securitization investors	740	342
Net loans held for investment	242,893	258,696
Loans held for sale	43	149
Interest receivable	1,574	1,758
Other investments	1,341	1,638
Financial liabilities:
Deposits with defined maturities	44,452	45,225
Securitized debt obligations	15,933	17,941
Senior and subordinated notes	28,771	31,233
Federal funds purchased and securities loaned or sold under agreements to repurchase	573	314
Other borrowings		7,001
Interest payable	$ 380	$ 439

Business Segments and Revenue_3

Business Segments and Revenue from Contracts with Customers - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2020Segment
Segment Reporting Information [Line Items]
Number of operating segments	3

Business Segments and Revenue_4

Business Segments and Revenue from Contracts with Customers - Segment Results and Reconciliation (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Segment Reporting Information [Line Items]
Net interest income (loss)	$ 5,460	$ 5,746	$ 11,485	$ 11,537
Non-interest income (loss)	1,096	1,378	2,320	2,670
Total net revenue (loss)	6,556	7,124	13,805	14,207
Provision (benefit) for credit losses		1,342		3,035
Non-interest expense	3,770	3,779	7,499	7,450
Income (loss) from continuing operations before income taxes	(1,460)	2,003	(3,363)	3,722
Income tax provision (benefit)	(543)	387	(1,106)	696
Income (loss) from continuing operations, net of tax	(917)	1,616	(2,257)	3,026
Loans held for investment		244,460		244,460
Total Deposits	304,238	254,535	304,238	254,535	$ 262,697
Uncollectible Portion of Billed Finance Charges and Fees	318		707
Operating segments | Credit Card
Segment Reporting Information [Line Items]
Net interest income (loss)	3,369	3,531	7,071	7,121
Non-interest income (loss)	845	1,038	1,756	1,988
Total net revenue (loss)	4,214	4,569	8,827	9,109
Provision (benefit) for credit losses	2,944	1,095	6,646	2,484
Non-interest expense	1,969	2,253	4,177	4,424
Income (loss) from continuing operations before income taxes	(699)	1,221	(1,996)	2,201
Income tax provision (benefit)	(166)	283	(472)	512
Income (loss) from continuing operations, net of tax	(533)	938	(1,524)	1,689
Loans held for investment	107,310	112,141	107,310	112,141
Total Deposits	0	0	0	0
Operating segments | Consumer Banking
Segment Reporting Information [Line Items]
Net interest income (loss)	1,665	1,709	3,322	3,388
Non-interest income (loss)	97	166	223	326
Total net revenue (loss)	1,762	1,875	3,545	3,714
Provision (benefit) for credit losses	876	165	1,736	400
Non-interest expense	1,036	1,002	2,027	1,996
Income (loss) from continuing operations before income taxes	(150)	708	(218)	1,318
Income tax provision (benefit)	(36)	165	(52)	307
Income (loss) from continuing operations, net of tax	(114)	543	(166)	1,011
Loans held for investment	66,712	60,327	66,712	60,327
Total Deposits	246,804	205,220	246,804	205,220
Operating segments | Commercial Banking
Segment Reporting Information [Line Items]
Net interest income (loss)	518	514	1,009	1,003
Non-interest income (loss)	180	200	418	387
Total net revenue (loss)	698	714	1,427	1,390
Provision (benefit) for credit losses	427	82	1,283	151
Non-interest expense	425	427	837	844
Income (loss) from continuing operations before income taxes	(154)	205	(693)	395
Income tax provision (benefit)	(36)	48	(164)	92
Income (loss) from continuing operations, net of tax	(118)	157	(529)	303
Loans held for investment	77,490	71,992	77,490	71,992
Total Deposits	35,669	30,761	35,669	30,761
Other
Segment Reporting Information [Line Items]
Net interest income (loss)	(92)	(8)	83	25
Non-interest income (loss)	(26)	(26)	(77)	(31)
Total net revenue (loss)	(118)	(34)	6	(6)
Provision (benefit) for credit losses	(1)	0	4	0
Non-interest expense	340	97	458	186
Income (loss) from continuing operations before income taxes	(457)	(131)	(456)	(192)
Income tax provision (benefit)	(305)	(109)	(418)	(215)
Income (loss) from continuing operations, net of tax	(152)	(22)	(38)	23
Loans held for investment	0	0	0	0
Total Deposits	$ 21,765	$ 18,554	$ 21,765	$ 18,554

Business Segments and Revenue_5

Business Segments and Revenue from Contracts with Customers - Revenue from Contracts with Customers (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Total contract revenue	$ 805	$ 969	$ 1,742	$ 1,863
Revenue from other sources	291	409	578	807
Non-interest income	1,096	1,378	2,320	2,670
Operating segments | Credit Card
Disaggregation of Revenue [Line Items]
Total contract revenue	669	777	1,427	1,491
Revenue from other sources	176	261	329	497
Non-interest income	845	1,038	1,756	1,988
Operating segments | Consumer Banking
Disaggregation of Revenue [Line Items]
Total contract revenue	82	152	215	297
Revenue from other sources	15	14	8	29
Non-interest income	97	166	223	326
Operating segments | Commercial Banking
Disaggregation of Revenue [Line Items]
Total contract revenue	56	42	103	78
Revenue from other sources	124	158	315	309
Non-interest income	180	200	418	387
Other
Disaggregation of Revenue [Line Items]
Total contract revenue	(2)	(2)	(3)	(3)
Revenue from other sources	(24)	(24)	(74)	(28)
Non-interest income	(26)	(26)	(77)	(31)
Interchange fees, net
Disaggregation of Revenue [Line Items]
Total contract revenue	672	820	1,424	1,578
Interchange fees, net | Operating segments | Credit Card
Disaggregation of Revenue [Line Items]
Total contract revenue	612	757	1,300	1,459
Interchange fees, net | Operating segments | Consumer Banking
Disaggregation of Revenue [Line Items]
Total contract revenue	48	52	98	98
Interchange fees, net | Operating segments | Commercial Banking
Disaggregation of Revenue [Line Items]
Total contract revenue	13	13	28	24
Interchange fees, net | Other
Disaggregation of Revenue [Line Items]
Total contract revenue	(1)	(2)	(2)	(3)
Service changes and other customer-related fees
Disaggregation of Revenue [Line Items]
Total contract revenue	73	102	168	202
Service changes and other customer-related fees | Operating segments | Credit Card
Disaggregation of Revenue [Line Items]
Total contract revenue	0	0	0	0
Service changes and other customer-related fees | Operating segments | Consumer Banking
Disaggregation of Revenue [Line Items]
Total contract revenue	31	74	95	149
Service changes and other customer-related fees | Operating segments | Commercial Banking
Disaggregation of Revenue [Line Items]
Total contract revenue	43	28	74	53
Service changes and other customer-related fees | Other
Disaggregation of Revenue [Line Items]
Total contract revenue	(1)	0	(1)	0
Other contract revenue
Disaggregation of Revenue [Line Items]
Total contract revenue	60	47	150	83
Other contract revenue | Operating segments | Credit Card
Disaggregation of Revenue [Line Items]
Total contract revenue	57	20	127	32
Other contract revenue | Operating segments | Consumer Banking
Disaggregation of Revenue [Line Items]
Total contract revenue	3	26	22	50
Other contract revenue | Operating segments | Commercial Banking
Disaggregation of Revenue [Line Items]
Total contract revenue	0	1	1	1
Other contract revenue | Other
Disaggregation of Revenue [Line Items]
Total contract revenue	$ 0	$ 0	$ 0	$ 0

Commitments, Contingencies, G_3

Commitments, Contingencies, Guarantees, and Others - Unfunded Lending Commitments: Contractual Amount and Carrying Value (Detail) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Loss Contingencies [Line Items]
Unfunded lending commitments, contractual amount	$ 399,483	$ 401,474
Off-balance sheet lending commitment, carrying value	199	137
Credit Card
Loss Contingencies [Line Items]
Unused commitments to extend credit, contractual amount	365,410	363,446
Other excluding credit card
Loss Contingencies [Line Items]
Unused commitments to extend credit, contractual amount	32,631	36,454
Off-balance sheet lending commitment, carrying value	156	110
Advised line of credit	1,500	1,600
Letter of credit
Loss Contingencies [Line Items]
Standby letters of credit and commercial letters of credit, contractual amount	1,442	1,574
Off-balance sheet lending commitment, carrying value	$ 43	$ 27

Commitments, Contingencies, G_4

Commitments, Contingencies, Guarantees, and Others - Loss Sharing and UK PPI (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Insurance claims
Loss Contingencies [Line Items]
Loss contingency accrual	$ 76	$ 188
Loss contingency, period increase (decrease)	0
Loss contingency, estimate beyond reserve	50
Loss sharing agreements
Loss Contingencies [Line Items]
Guarantee obligation	$ 96	$ 75

Commitments, Contingencies, G_5

Commitments, Contingencies, Guarantees, and Others - Litigation (Detail) $ in Millions	1 Months Ended	6 Months Ended
	Oct. 31, 2018USD ($)	Jun. 30, 2020USD ($)claim
Loss Contingencies [Line Items]
Loss contingency, estimate of possible loss		$ 1,000
Anti-money laundering
Loss Contingencies [Line Items]
Litigation settlement paid	$ 100
Cybersecurity Incident [Member]
Loss Contingencies [Line Items]
Number of consumer class action cases filed for Cybersecurity Incident | claim		73
Penalty to the US Treasury Accrued		$ 80
Pending litigation | Interchange litigation
Loss Contingencies [Line Items]
Litigation settlement, attributable to reporting entity and third party		$ 5,500
United States | Cybersecurity Incident [Member]
Loss Contingencies [Line Items]
Number of consumer class action cases filed for Cybersecurity Incident | claim		61
Canada | Cybersecurity Incident [Member]
Loss Contingencies [Line Items]
Number of consumer class action cases filed for Cybersecurity Incident | claim		12