Consolidated Statements of Cash Flows - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating Activities
Net income		$ 794	$ 916	$ 912
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses		150	260	95
Deferred income tax expense (benefit)		(17)	44	91
Depreciation and amortization of premises and equipment		55	55	59
Amortization of intangible assets		44	47	51
Net other amortization and accretion		2	0	(25)
Net decrease in trading securities (a)	[1]	1,011	1,163	2,120
Net (increase) decrease in derivatives		(2)	(314)	524
Stock-based compensation expense		59	36	75
Securities (gains) losses, net		89	4	(18)
Net (gains) losses on sale/disposal of fixed assets		(3)	0	(1)
Gain on divestiture		0	(9)	0
Gain on BOLI		(5)	(7)	(9)
Loans held for sale:
Purchases and originations		(2,758)	(2,295)	(3,728)
Gross proceeds from settlements and sales		1,792	1,183	2,310
(Gain) loss due to fair value adjustments and other		(75)	(12)	107
Other operating activities, net		132	228	(272)
Total adjustments		474	383	1,379
Net cash provided by operating activities		1,268	1,299	2,291
Investing Activities
Proceeds from sales of securities available for sale		1,155	0	0
Proceeds from maturities of securities available for sale		831	856	1,351
Purchases of securities available for sale		(1,538)	(261)	(2,767)
Purchases of securities held to maturity		0	0	(712)
Proceeds from prepayments of securities held to maturity		57	53	55
Proceeds from sales of premises and equipment		8	1	18
Purchases of premises and equipment		(44)	(37)	(28)
Proceeds from BOLI		13	14	22
Net increase in loans and leases		(1,337)	(3,303)	(3,204)
Net (increase) decrease in interest-bearing deposits with banks		(209)	56	13,523
Cash received for divestitures		0	11	0
Other investing activities, net		6	5	75
Net cash (used in) provided by investing activities		(1,058)	(2,605)	8,333
Common stock:
Stock options exercised		9	5	36
Cash dividends paid		(332)	(335)	(324)
Repurchase of shares		(626)	(10)	(12)
Preferred stock:
Preferred stock issuance		0	0	494
Call of preferred stock		(100)	0	0
Cash dividends paid - preferred stock - noncontrolling interest		(19)	(17)	(11)
Cash dividends paid - preferred stock		(29)	(32)	(32)
Net (decrease) increase in deposits		(201)	2,289	(11,406)
Net increase in short-term borrowings		851	43	382
Net increase (decrease) in term borrowings		43	(449)	4
Net cash (used in) provided by financing activities		(404)	1,494	(10,869)
Net (decrease) increase in cash and cash equivalents		(194)	188	(245)
Cash and cash equivalents at beginning of period		1,731	1,543	1,788
Cash and cash equivalents at end of period		1,537	1,731	1,543
Supplemental Disclosures
Total interest paid		1,869	1,428	280
Total taxes paid		106	123	20
Total taxes refunded		7	19	7
Transfer from loans to OREO		3	4	3
Transfer from loans HFS to trading securities		992	1,212	1,893
Transfer from loans to loans HFS		0	7	0
Preferred stock conversion to common stock		$ 0	$ 493	$ 0

[1] (a) Includes transfers from loans HFS to trading securities.