Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Operating Activities
Net income	$ 387	$ 373	$ 199
Adjustments to reconcile net income to net cash flows provided by operating activities:
Depreciation, amortization and accretion	45	109	89
Provision for credit losses	44	61	61
Deferred tax expense	33	33	129
Net securities gains	0	0	(6)
Loans originated for sale	(1,481)	(1,117)	(1,098)
Loans sold	1,495	1,210	1,047
Net gain on sale of loans	(25)	(22)	(17)
Net change in:
Interest receivable	(8)	(6)	(18)
Interest payable	1	7	2
Bank owned life insurance, excluding purchases	(7)	(10)	(11)
Other, net	(225)	(27)	(98)
Net cash flows provided by operating activities	259	611	279
Investing Activities
Net change in loans and leases, excluding sales	(1,427)	(1,394)	(1,100)
Securities available for sale:
Purchases	(655)
Purchases		(1,200)	(1,142)
Sales	0	0	787
Maturities	770	592	570
Debt securities held to maturity:
Purchases	(494)	(387)	(1,186)
Sales	0	0	57
Maturities	468	370	395
Purchase of bank owned life insurance	0	0	(50)
Increase in premises and equipment	(46)	(35)	(57)
Net cash received in business combinations and divestitures	0	134	197
Loans sold, not originated for sale	262	0	0
Other, net	(9)	0	0
Net cash flows used in investing activities	(1,131)	(1,920)	(1,529)
Financing Activities
Demand (non-interest-bearing and interest-bearing) and savings accounts	1,873	406	406
Time deposits	(539)	653	757
Short-term borrowings	(913)	450	379
Proceeds from issuance of long-term borrowings	954	37	155
Repayment of long-term borrowings	(239)	(77)	(199)
Net proceeds from issuance of common stock	12	14	11
Cash dividends paid:
Preferred stock	(8)	(8)	(8)
Common stock	(157)	(157)	(143)
Net cash flows provided by financing activities	983	1,318	1,358
Net Increase (Decrease) in Cash and Cash Equivalents	111	9	108
Cash and cash equivalents at beginning of year	488	479	371
Cash and Cash Equivalents at End of Year	$ 599	$ 488	$ 479