Consolidated Statements of Income - USD ($) shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Interest Income
Interest and fees on loans and leases	$ 11,481	$ 13,485	$ 7,982
Interest on securities	2,090	1,739	1,319
Interest on other earning assets	203	324	108
Total interest income	13,774	15,548	9,409
Interest Expense
Interest on deposits	148	785	1,101
Interest on long-term debt	573	800	797
Interest on other borrowings	47	137	198
Total interest expense	768	1,722	2,096
Net Interest Income	13,006	13,826	7,313
Provision for credit losses	(813)	2,335	615
Net Interest Income After Provision for Credit Losses	13,819	11,491	6,698
Noninterest Income
Noninterest income	9,290	8,879	5,255
Noninterest Expense
Personnel expense	8,632	8,146	4,833
Professional fees and outside processing	1,442	1,252	433
Software expense	945	862	338
Net occupancy expense	764	904	507
Amortization of intangibles	574	685	164
Equipment expense	513	484	280
Marketing and customer development	294	273	137
Operating lease depreciation	190	258	136
Loan-related expense	212	242	123
Regulatory costs	137	125	81
Merger-related and restructuring charges	822	860	360
Loss (gain) on early extinguishment of debt	(4)	235	0
Other expense	595	571	542
Total noninterest expense	15,116	14,897	7,934
Earnings
Income before income taxes	7,993	5,473	4,019
Provision for income taxes	1,556	981	782
Net income	6,437	4,492	3,237
Noncontrolling interests	(3)	10	13
Net income available to the bank holding company	6,440	4,482	3,224
Preferred stock dividends and other	407	298	196
Net income available to common shareholders	$ 6,033	$ 4,184	$ 3,028
Basic EPS	$ 4.51	$ 3.11	$ 3.76
Diluted EPS	$ 4.47	$ 3.08	$ 3.71
Basic weighted average shares outstanding (in shares)	1,337,144	1,347,080	805,104
Diluted weighted average shares outstanding (in shares)	1,349,378	1,358,289	815,204
Insurance income
Noninterest Income
Noninterest income	$ 2,627	$ 2,193	$ 2,072
Investment banking and trading income
Noninterest Income
Noninterest income	1,441	1,010	249
Wealth management income
Noninterest Income
Noninterest income	1,392	1,277	715
Service charges on deposits
Noninterest Income
Noninterest income	1,060	1,020	762
Card and payment related fees
Noninterest Income
Noninterest income	874	761	555
Residential mortgage income
Noninterest Income
Noninterest income	555	1,000	285
Lending related fees
Noninterest Income
Noninterest income	349	315	124
Operating lease income
Noninterest Income
Noninterest income	262	309	153
Commercial mortgage income
Noninterest Income
Noninterest income	179	185	102
Income from bank-owned life insurance
Noninterest Income
Noninterest income	183	179	129
Securities gains (losses)
Noninterest Income
Noninterest income	0	402	(116)
Other income
Noninterest Income
Noninterest income	$ 368	$ 228	$ 225