Consolidated Statements of Income - USD ($) shares in Thousands, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Interest Income
Interest and fees on loans and leases	$ 3,377	$ 1,886	$ 7,153	$ 3,725
Interest on securities	444	300	938	602
Interest on other earning assets	67	20	223	52
Total interest income	3,888	2,206	8,314	4,379
Interest Expense
Interest on deposits	201	273	622	526
Interest on long-term debt	211	193	483	385
Interest on other borrowings	28	50	111	82
Total interest expense	440	516	1,216	993
Net Interest Income	3,448	1,690	7,098	3,386
Provision for credit losses	844	172	1,737	327
Net Interest Income After Provision for Credit Losses	2,604	1,518	5,361	3,059
Noninterest Income
Noninterest income	2,423	1,352	4,384	2,554
Noninterest Expense
Personnel expense	2,008	1,120	3,980	2,207
Net occupancy expense	243	116	464	238
Professional fees and outside processing	289	84	536	170
Software expense	216	71	426	143
Equipment expense	120	68	236	133
Marketing and customer development	56	29	140	56
Operating lease depreciation	77	29	148	58
Loan-related expense	56	30	118	55
Amortization of intangibles	178	32	343	64
Regulatory costs	30	19	59	37
Merger-related and restructuring charges	209	23	316	103
Loss (gain) on early extinguishment of debt	235	0	235	0
Other expense	161	130	308	255
Total noninterest expense	3,878	1,751	7,309	3,519
Earnings
Income before income taxes	1,149	1,119	2,436	2,094
Provision for income taxes	191	234	415	411
Net income	958	885	2,021	1,683
Noncontrolling interests	3	(1)	6	5
Dividends on preferred stock	53	44	127	87
Net income available to common shareholders	$ 902	$ 842	$ 1,888	$ 1,591
Basic EPS	$ 0.67	$ 1.10	$ 1.40	$ 2.08
Diluted EPS	$ 0.67	$ 1.09	$ 1.39	$ 2.06
Basic weighted average shares outstanding (in shares)	1,347,512	765,958	1,345,942	765,052
Diluted weighted average shares outstanding (in shares)	1,355,834	774,603	1,356,809	774,329
Insurance income
Noninterest Income
Noninterest income	$ 581	$ 566	$ 1,130	$ 1,076
Service charges on deposits
Noninterest Income
Noninterest income	202	181	507	352
Wealth management income
Noninterest Income
Noninterest income	289	172	621	335
Card and payment related fees
Noninterest Income
Noninterest income	171	139	358	267
Residential mortgage income
Noninterest Income
Noninterest income	341	91	586	140
Investment banking and trading income
Noninterest Income
Noninterest income	274	48	392	74
Operating lease income
Noninterest Income
Noninterest income	83	35	160	70
Income from bank-owned life insurance
Noninterest Income
Noninterest income	45	34	89	62
Lending related fees
Noninterest Income
Noninterest income	66	28	133	53
Commercial real estate related income
Noninterest Income
Noninterest income	49	22	93	36
Securities gains (losses)
Noninterest Income
Noninterest income	300	0	298	0
Other income (loss)
Noninterest Income
Noninterest income	$ 22	$ 36	$ 17	$ 89