Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
OPERATING ACTIVITIES
Net income (loss)	$ 493	$ 599
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Provision for credit losses	201	306
Depreciation, amortization, and accretion, net	49	82
Increase in cash surrender value of corporate-owned life insurance	(57)	(52)
Stock-based compensation expense	53	63
Deferred income taxes (benefit)	(60)	29
Proceeds from sales of loans held for sale	3,175	3,353
Originations of loans held for sale, net of repayments	(3,267)	(3,549)
Net losses (gains) on sales of loans held for sale	(49)	(37)
Net losses (gains) on leased equipment	(8)	(3)
Net securities and other investments losses (gains)	13	7
Net losses (gains) on sales of fixed assets	(3)	13
Net change in:
Trading account assets	(77)	(348)
Accrued income and other assets	36	516
Accrued expense and other liabilities	(586)	250
Other operating activities, net	229	71
NET CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES	142	1,300
INVESTING ACTIVITIES
Net decrease (increase) in short-term investments, excluding acquisitions	(4,719)	(6,527)
Purchases of securities available for sale	(3,646)	(289)
Proceeds from sales of securities available for sale	2,138	511
Proceeds from prepayments and maturities of securities available for sale	1,114	1,172
Proceeds from prepayments and maturities of held-to-maturity securities	614	708
Purchases of held-to-maturity securities	0	(1,179)
Net decrease (increase) in other investments	(15)	(174)
Net decrease (increase) in loans, excluding acquisitions, sales and transfers	5,407	303
Proceeds from sales of portfolio loans	96	89
Proceeds from corporate-owned life insurance	58	43
Purchases of premises, equipment, and software	(25)	(74)
Proceeds from sales of premises and equipment	10	2
NET CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES	1,032	(5,415)
FINANCING ACTIVITIES
Net increase (decrease) in deposits	133	2,537
Net increase (decrease) in short-term borrowings	2,226	(812)
Net proceeds from issuance of long-term debt	1,350	5,240
Payments on long-term debt	(4,016)	(2,452)
Open market common share repurchases	0	(38)
Employee equity compensation program Common Share repurchases	(26)	(34)
Net proceeds from reissuance of Common Shares	3	1
Cash dividends paid	(459)	(456)
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	(789)	3,986
NET INCREASE (DECREASE) IN CASH AND DUE FROM BANKS	385	(129)
CASH AND DUE FROM BANKS AT BEGINNING OF PERIOD	941	887
CASH AND DUE FROM BANKS AT END OF PERIOD	1,326	758
Additional disclosures relative to cash flows:
Interest paid	2,009	1,360
Income taxes paid (refunded)	58	140
Noncash items:
Reduction of secured borrowing and related collateral	2	3
Loans transferred to portfolio from held for sale	107	83
Loans transferred to held for sale from portfolio	0	19
Loans transferred to OREO	3	4
CMBS risk retentions	0	0
ABS risk retentions	$ 6	$ 7