CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Operating activities:
Income from continuing operations, net of tax	$ 2,717	$ 5,533	$ 6,025
Income (loss) from discontinued operations, net of tax	(3)	13	(10)
Net income	2,714	5,546	6,015
Adjustments to reconcile net income to net cash from operating activities:
Provision for credit losses	10,264	6,236	5,856
Depreciation and amortization, net	3,501	3,339	2,396
Deferred tax provision (benefit)	(1,627)	(296)	714
Net securities losses (gains)	(25)	(26)	209
Gain on sales of loans	(6)	(50)	(548)
Stock-based compensation expense	203	239	170
Other (including unrealized gains from equity investments)	(520)	0	(125)
Loans held for sale:
Originations and purchases	(10,055)	(9,798)	(9,039)
Proceeds from sales and paydowns	9,856	10,668	8,442
Changes in operating assets and liabilities:
Changes in interest receivable	287	(63)	(74)
Changes in other assets	979	662	476
Changes in interest payable	(87)	(19)	45
Changes in other liabilities	1,212	194	(1,553)
Net change from discontinued operations	3	7	(6)
Net cash from operating activities	16,699	16,639	12,978
Securities available for sale:
Purchases	(43,026)	(12,105)	(14,022)
Proceeds from paydowns and maturities	22,324	8,553	7,510
Proceeds from sales	812	4,780	6,399
Securities held to maturity:
Purchases	0	(396)	(19,166)
Proceeds from paydowns and maturities	0	5,050	2,419
Loans:
Net changes in loans held for investment	4,136	(21,280)	1,015
Principal recoveries of loans previously charged off	2,452	2,557	2,503
Net purchases of premises and equipment	(710)	(887)	(874)
Net cash from acquisition activities	(7)	(8,393)	(600)
Net cash from other investing activities	(822)	(877)	(802)
Net cash from investing activities	(14,841)	(22,998)	(15,618)
Financing activities:
Changes in deposits	42,519	12,643	6,077
Issuance of securitized debt obligations	1,248	6,656	997
Maturities and paydowns of securitized debt obligations	(6,885)	(7,285)	(2,673)
Issuance of senior and subordinated notes and long-term FHLB advances	3,987	4,142	5,977
Maturities and paydowns of senior and subordinated notes and long-term FHLB advances	(8,156)	(5,595)	(14,163)
Changes in other borrowings	(6,674)	(2,104)	8,671
Common stock:
Net proceeds from issuances	241	199	175
Dividends paid	(460)	(753)	(773)
Preferred stock:
Net proceeds from issuances	1,330	1,462	0
Dividends paid	(280)	(282)	(265)
Redemptions	(1,375)	(1,000)	0
Purchases of treasury stock	(393)	(1,481)	(2,284)
Proceeds from share-based payment activities	62	17	38
Net cash from financing activities	25,164	6,619	1,777
Changes in cash, cash equivalents and restricted cash for securitization investors	27,022	260	(863)
Cash, cash equivalents and restricted cash for securitization investors, beginning of the period	13,749	13,489	14,352
Cash, cash equivalents and restricted cash for securitization investors, end of the period	40,771	13,749	13,489
Non-cash items:
Net transfers from (to) loans held for investment to (from) loans held for sale	2,192	1,589	855
Transfers from securities held to maturity to securities available for sale	0	33,187	0
Interest paid	3,580	4,790	3,933
Income tax paid	$ 988	$ 626	$ 407