Consolidated Statement of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Cash flows from operating activities
Net income	$ 2,588	$ 2,741	$ 1,992
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	610	645	517
Depreciation and amortization of premises and equipment	316	304	282
Amortization of capitalized servicing rights	139	131	97
Amortization of core deposit and other intangible assets	53	62	56
Provision for deferred income taxes	(27)	(97)	(30)
Asset write-downs	40	4	8
Net gain on sales of assets	(30)	(249)	(153)
Net change in accrued interest receivable, payable	(176)	261	(123)
Net change in other accrued income and expense	282	561	(70)
Net change in loans originated for sale	(128)	(192)	771
Net change in trading account and other non-hedging derivative assets and liabilities	(57)	(266)	1,227
Net cash provided by operating activities	3,610	3,905	4,574
Cash flows from investing activities
Available for sale	167	0	0
Equity and other securities	610	1,014	242
Available for sale	6,072	743	795
Held to maturity	1,158	1,170	1,516
Available for sale	(14,476)	(346)	(7,222)
Held to maturity	0	(2,948)	(1,890)
Equity and other securities	(467)	(1,205)	(456)
Net increase in loans and leases	(2,030)	(2,770)	(3,639)
Net (increase) decrease in interest-bearing deposits at banks	9,196	(3,110)	26,107
Capital expenditures, net	(216)	(256)	(214)
Net (increase) decrease in loan servicing advances	(26)	274	1,579
Bank and bank holding company	0	0	394
Other, net	(538)	(440)	(620)
Net cash provided (used) by investing activities	(550)	(7,874)	16,592
Cash flows from financing activities
Net decrease in deposits	(2,182)	(248)	(20,994)
Net increase (decrease) in short-term borrowings	(4,256)	1,761	2,613
Proceeds from long-term borrowings	5,497	5,035	999
Payments on long-term borrowings	(1,009)	(824)	(907)
Purchases of treasury stock	(396)	(594)	(1,800)
Dividends paid — common	(895)	(868)	(784)
Dividends paid — preferred	(138)	(100)	(97)
Proceeds from issuance of Series J preferred stock	733	0	0
Redemption of Series E preferred stock	350	0	0
Other, net	114	18	(14)
Net cash provided (used) by financing activities	(2,882)	4,180	(20,984)
Net increase in cash and cash equivalents	178	211	182
Cash, cash equivalents and restricted cash at beginning of period	1,731	1,520	1,338
Cash, cash equivalents and restricted cash at end of period	1,909	1,731	1,520
Supplemental disclosure of cash flow information
Interest received during the period	11,077	10,092	6,135
Interest paid during the period	4,319	2,691	429
Income taxes paid during the period	236	452	488
Supplemental schedule of noncash investing and financing activities
Real estate acquired in settlement of loans	33	23	31
Additions to right-of-use assets under operating leases	101	134	138
Common stock issued	0	0	8,286
Common stock awards converted	0	0	105
Assets acquired (noncash)	0	0	63,757
Liabilities assumed	0	0	55,499
Preferred stock converted	$ 0	$ 0	$ 261