CONSOLIDATED STATEMENT OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Cash flows from operating activities
Net income	$ 225	$ 217
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	(16)	3
Provision for credit losses	2	20
Net realized gains on securities available-for-sale	(2)	(3)
Net change in other assets and liabilities	305	1,039
Net change in loans held for sale:
Originations and purchases of loans held for sale	(87)	(192)
Sales and collections of loans held for sale	74	73
Net change in trading assets and liabilities	2,276	3,611
Lower of amortized cost or fair value adjustments on loans held for sale	(2)	0
Loss on instruments designated at fair value and related derivatives	20	22
Net cash provided by operating activities	2,795	4,790
Cash flows from investing activities
Net change in federal funds sold and securities purchased under agreements to resell	5,572	1,364
Securities available-for-sale:
Purchases of securities available-for-sale	(2,320)	(1,077)
Proceeds from sales of securities available-for-sale	1,075	681
Proceeds from paydowns and maturities of securities available-for-sale	970	1,618
Securities held-to-maturity:
Purchases of securities held-to-maturity	(464)	(3,388)
Proceeds from paydowns and maturities of securities held-to-maturity	259	162
Change in loans:
Originations, net of collections	(1,745)	(278)
Loans sold to third parties	861	200
Net cash used for acquisitions of properties and equipment	(8)	(8)
Other, net	(25)	36
Net cash provided by (used in) investing activities	4,175	(690)
Cash flows from financing activities
Net change in deposits	766	(1,062)
Debt:
Net change in short-term borrowings	(2,881)	877
Issuance of long-term debt	2,331	2,033
Repayment of long-term debt	(1,523)	(603)
Other decreases in capital surplus	0	(4)
Net cash provided by (used in) financing activities	(1,307)	1,241
Net change in cash and due from banks and interest bearing deposits with banks	5,663	5,341
Cash and due from banks and interest bearing deposits with banks at beginning of period	25,719	18,748
Cash and due from banks and interest bearing deposits with banks at end of period	$ 31,382	$ 24,089