Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Interest Income
Loans	$ 197	$ 190	$ 579	$ 551
Investment securities	12	16	35	56
Interest-earning deposits and other	0	0	0	1
Total interest income	209	206	614	608
Interest Expense
Deposits	7	16	25	69
Short-term Federal Home Loan Bank advances and other	1	2	3	16
Long-term Federal Home Loan Bank advances	3	3	9	9
Other long-term debt	3	5	11	18
Total interest expense	14	26	48	112
Net interest income	195	180	566	496
(Benefit) provision for credit losses	(23)	32	(95)	148
Net interest income after provision for credit losses	218	148	661	348
Noninterest Income
Net gain on loan sales	169	346	564	739
Loan fees and charges	33	41	112	102
Net return on mortgage servicing rights	9	12	4	10
Loan administration income	31	26	85	59
Deposit fees and charges	9	8	26	24
Other noninterest income	15	15	51	44
Total noninterest income	266	448	842	978
Noninterest Expense
Compensation and benefits	130	123	396	341
Occupancy and equipment	46	47	141	132
Commissions	44	72	156	162
Loan processing expense	22	20	65	59
Legal and professional expense	12	9	32	20
Federal insurance premiums	6	6	16	19
Intangible asset amortization	3	3	8	10
Other noninterest expense	23	21	108	84
Total noninterest expense	286	301	922	827
Income before income taxes	198	295	581	499
Provision for income taxes	46	73	133	115
Net income	$ 152	$ 222	$ 448	$ 384
Net income per share
Basic (in dollars per share)	$ 2.87	$ 3.90	$ 8.48	$ 6.76
Diluted (in dollars per share)	2.83	3.88	8.37	6.71
Cash dividends declared (in dollars per share)	$ 0.06	$ 0.05	$ 0.18	$ 0.15
Weighted average shares outstanding
Basic (in shares)	52,862,288	57,032,746	52,767,923	56,827,171
Diluted (in shares)	53,659,422	57,379,809	53,499,289	57,231,689