CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Operating Activities
Net income	$ 255	$ 198
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Provision for credit losses	50	(40)
Deferred income tax expense (benefit)	6	38
Depreciation and amortization of premises and equipment	14	15
Amortization of intangible assets	12	13
Net other amortization and accretion	4	(10)
Net (increase) decrease in trading securities	375	514
Net (increase) decrease in derivatives	(266)	395
Stock-based compensation expense	22	14
Securities (gains) losses, net	0	(6)
Loans held for sale:
Purchases and originations	(477)	(1,511)
Gross proceeds from settlements and sales	293	920
(Gain) loss due to fair value adjustments and other	2	13
Other operating activities, net	(359)	141
Total adjustments	(324)	496
Net cash provided by (used in) operating activities	(69)	694
Investing Activities
Proceeds from maturities of securities available for sale	244	408
Purchases of securities available for sale	(221)	(1,492)
Proceeds from prepayments of securities held to maturity	10	11
Proceeds from sales of premises and equipment	0	4
Purchases of premises and equipment	(5)	(10)
Net (increase) decrease in loans and leases	(949)	(134)
Net (increase) decrease in interest-bearing deposits with banks	(1,103)	1,359
Other investing activities, net	2	8
Net cash provided by (used in) investing activities	(2,022)	154
Common stock:
Stock options exercised	5	15
Cash dividends paid	(83)	(82)
Repurchase of shares	(4)	(2)
Preferred stock:
Preferred stock issuance	0	494
Cash dividends paid - preferred stock - noncontrolling interest	(4)	(3)
Cash dividends paid - preferred stock	(8)	(8)
Net increase (decrease) in deposits	(2,049)	(781)
Net increase (decrease) in short-term borrowings	3,979	(405)
Increases (decreases) in term borrowings	8	1
Net cash provided by (used in) financing activities	1,844	(771)
Net increase (decrease) in cash and cash equivalents	(247)	77
Cash and cash equivalents at beginning of period	1,543	1,788
Cash and cash equivalents at end of period	1,296	1,865
Supplemental Disclosures
Total interest paid	200	19
Total taxes paid	3	2
Total taxes refunded	2	1
Transfer from loans to OREO	2	0
Transfer from loans HFS to trading securities	$ 122	$ 736