Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash Flows From Operating Activities:
Net income	$ 798	$ 791
Adjustments to reconcile net income to net cash from operating activities:
Provision for credit losses	155	150
Depreciation	105	105
Amortization of intangibles	32	33
Equity-based compensation expense	32	31
Net change in operating assets and liabilities:
LHFS	77	(90)
Trading and equity securities	(1,131)	10
Other assets, accounts payable and other liabilities	(1,006)	(583)
Other, net	193	(139)
Net cash from operating activities	(745)	308
Cash Flows From Investing Activities:
Proceeds from sales of AFS securities	1,797	95
Proceeds from maturities, calls and paydowns of AFS securities	861	959
Purchases of AFS securities	(3,525)	(1,863)
Proceeds from maturities, calls and paydowns of HTM securities	450	626
Purchases of HTM securities	0	(39)
Originations and purchases of loans and leases, net of principal collected	(193)	385
Other, net	133	40
Net cash from investing activities	(477)	203
Cash Flows From Financing Activities:
Net change in deposits	(1,432)	830
Net change in short-term borrowings	1,127	(617)
Proceeds from issuance of long-term debt	2,015	7
Repayment of long-term debt	(1,103)	(41)
Repurchase of common stock	0	(320)
Cash dividends paid on common stock	(309)	(292)
Cash dividends paid on preferred stock	(43)	(43)
Other, net	(48)	(7)
Net cash from financing activities	207	(483)
Net Change in Cash, Cash Equivalents and Restricted Cash	(1,015)	28
Cash and Cash Equivalents at Beginning of Period	3,987	3,083
Cash, Cash Equivalents and Restricted Cash at End of Period	2,972	3,111
Supplemental Disclosure of Cash Flow Information:
Net cash paid (received) during the period for interest expense	419	256
Net cash paid (received) during the period for income taxes	$ 62	$ 15