CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Operating activities:
Income from continuing operations, net of tax	$ 3,770	$ 4,012	$ 4,423
Income (loss) from discontinued operations, net of tax	(19)	38	5
Net income	3,751	4,050	4,428
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan, lease and other losses	6,459	4,536	3,541
Depreciation and amortization, net	2,428	2,100	2,002
Deferred tax benefit	(686)	(402)	(76)
Net (gain) loss on sales of securities available for sale	(6)	2	(21)
Impairment losses on securities available for sale	17	30	24
Gain on sales of loans held for sale	(80)	(86)	(48)
Stock plan compensation expense	239	161	205
Other noncash income	(11)	0	0
Loans held for sale:
Originations and purchases	(8,645)	(6,942)	(5,619)
Proceeds from sales and paydowns	8,390	6,805	5,365
Changes in operating assets and liabilities:
Changes in interest receivable	(159)	(72)	(29)
Changes in other assets	(1,907)	(596)	(402)
Changes in interest payable	28	45	22
Changes in other liabilities	2,013	575	99
Net change from discontinued operations	25	(79)	(187)
Net cash from operating activities	11,856	10,127	9,304
Securities available for sale:
Purchases	(14,154)	(12,200)	(12,650)
Proceeds from paydowns and maturities	7,867	7,742	7,968
Proceeds from sales	4,146	4,379	7,417
Securities held to maturity:
Purchases	(3,787)	(4,277)	(4,827)
Proceeds from paydowns and maturities	2,681	2,163	1,471
Loans:
Net changes in loans held for investment	(22,036)	(18,575)	(16,563)
Principal recoveries of loans previously charged off	1,493	1,498	1,582
Purchases of premises and equipment	(779)	(532)	(502)
Payments to Acquire Businesses, Net of Cash Acquired	(629)	(9,314)	(24)
Net cash from other investing activities	(432)	(610)	137
Net cash from investing activities	(25,630)	(29,726)	(15,991)
Financing activities:
Changes in restricted cash for securitization investors	(1,500)	(783)	640
Changes in deposits	19,031	12,163	1,017
Proceeds from Issuance of Secured Debt	6,259	5,062	4,291
Maturities and paydowns of securitized debt obligations	(3,540)	(500)	(2,992)
Issuance of senior and subordinated notes and long-term FHLB advances	22,984	31,830	7,714
Maturities and paydowns of senior and subordinated notes and long-term FHLB advances	(24,170)	(9,579)	(2,375)
Changes in other short-term borrowings	11	(16,066)	919
Common stock:
Net proceeds from issuances	131	111	100
Dividends paid	(812)	(816)	(679)
Preferred stock:
Net proceeds from issuances	1,066	1,472	969
Dividends paid	(214)	(158)	(67)
Purchases of treasury stock	(3,661)	(2,441)	(2,045)
Proceeds from share-based payment activities	142	85	146
Net cash from financing activities	15,727	20,380	7,638
Changes in cash and cash equivalents	1,953	781	951
Cash and cash equivalents at beginning of the period	8,023	7,242	6,291
Cash and cash equivalents at end of the period	9,976	8,023	7,242
Non-cash item:
Net transfers from loans held for investment to loans held for sale	552	268	182
Interest paid	2,250	1,643	1,569
Income tax paid	$ 2,121	$ 1,732	$ 1,603