CONDENSED CONSOLIDATED STATEMENT OF INCOME - USD ($) shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenue:
Interest income	$ 2,111	$ 2,009	$ 1,571
Interest expense	(259)	(163)	(86)
Net interest income	1,852	1,846	1,485
Gains (losses) on securities and other, net	(23)	53	28
Other revenue	48	45	43
Total non-interest income	1,034	1,027	881
Total net revenue	2,886	2,873	2,366
Provision (benefit) for loan losses	(51)	(86)	(168)
Non-interest expense:
Compensation and benefits	670	621	546
Advertising and market development	196	200	166
Clearing and servicing	133	126	124
Professional services	105	96	99
Occupancy and equipment	135	124	116
Communications	99	116	121
Depreciation and amortization	88	92	82
FDIC insurance premiums	14	30	31
Amortization of other intangibles	61	48	36
Restructuring and acquisition-related activities	23	7	15
Losses on early extinguishment of debt	0	4	58
Other non-interest expenses	94	77	76
Total non-interest expense	1,618	1,541	1,470
Income before income tax expense	1,319	1,418	1,064
Income tax expense	364	366	450
Net income	955	1,052	614
Preferred stock dividends	40	36	25
Net income available to common shareholders	$ 915	$ 1,016	$ 589
Basic earnings per common share (in dollars per share)	$ 3.86	$ 3.90	$ 2.16
Diluted earnings per common share (in dollars per share)	$ 3.85	$ 3.88	$ 2.15
Basic (in thousands)	237,396	260,600	273,190
Diluted (in thousands)	237,931	261,669	274,352
Commissions [Member]
Non-interest Income
Revenue	$ 421	$ 498	$ 441
Fees and service charges [Member]
Non-interest Income
Revenue	$ 588	$ 431	$ 369