Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash Flows From Operating Activities:
Net income	$ 1,613	$ 1,100
Adjustments to reconcile net income to net cash from operating activities:
Provision for credit losses	285	283
Depreciation	210	200
Loss (gain) on early extinguishment of debt	0	392
Amortization of intangibles	64	74
Equity-based compensation expense	76	74
(Gain) loss on securities, net	(1)	0
Net change in operating assets and liabilities:
LHFS	(516)	394
Trading and equity securities	(187)	(655)
Other assets, accounts payable and other liabilities	59	(377)
Other, net	(176)	3
Net cash from operating activities	1,427	1,488
Cash Flows From Investing Activities:
Proceeds from sales of AFS securities	160	224
Proceeds from maturities, calls and paydowns of AFS securities	1,990	2,531
Purchases of AFS securities	(1,989)	(2,599)
Proceeds from maturities, calls and paydowns of HTM securities	1,259	1,138
Purchases of HTM securities	(39)	(2,859)
Originations and purchases of loans and leases, net of principal collected	(2,957)	(1,049)
Other, net	13	(12)
Net cash from investing activities	(1,563)	(2,626)
Cash Flows From Financing Activities:
Net change in deposits	2,113	(3,256)
Net change in short-term borrowings	(1,362)	4,736
Proceeds from issuance of long-term debt	1,755	4,650
Repayment of long-term debt	(1,044)	(5,271)
Repurchase of common stock	(630)	(320)
Cash dividends paid on common stock	(582)	(485)
Cash dividends paid on preferred stock	(87)	(87)
Other, net	(57)	175
Net cash from financing activities	106	142
Net Change in Cash, Cash Equivalents and Restricted Cash	(30)	(996)
Cash and Cash Equivalents at Beginning of Period	3,083	4,424
Cash and Cash Equivalents at End of Period	3,053	3,428
Supplemental Disclosure of Cash Flow Information:
Net cash paid (received) during the period for interest expense	619	347
Net cash paid (received) during the period for income taxes	(60)	187
Noncash investing activities:
Transfers of loans to foreclosed assets	$ 125	$ 267