Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Interest Income
Loans	$ 186	$ 180	$ 382	$ 361
Investment securities	12	21	23	40
Interest-earning deposits and other	0	0	0	1
Total interest income	198	201	405	402
Interest Expense
Deposits	8	21	18	53
Short-term Federal Home Loan Bank advances and other	1	2	2	14
Long-term Federal Home Loan Bank advances	3	3	6	6
Other long-term debt	3	7	8	13
Total interest expense	15	33	34	86
Net interest income	183	168	371	316
(Benefit) provision for credit losses	(44)	102	(72)	116
Net interest income after provision for credit losses	227	66	443	200
Noninterest Income
Net gain on loan sales	168	303	395	393
Loan fees and charges	37	38	79	61
Net return on mortgage servicing rights	(5)	(8)	(5)	(2)
Loan administration income	28	21	54	33
Deposit fees and charges	8	7	17	16
Other noninterest income	16	14	36	28
Total noninterest income	252	375	576	529
Noninterest Expense
Compensation and benefits	122	116	266	218
Occupancy and equipment	50	44	95	85
Commissions	51	61	112	90
Loan processing expense	22	22	43	39
Legal and professional expense	11	5	20	11
Federal insurance premiums	4	7	10	13
Intangible asset amortization	3	4	5	7
Other noninterest expense	26	34	85	63
Total noninterest expense	289	293	636	526
Income before income taxes	190	148	383	203
Provision for income taxes	43	32	87	42
Net income	$ 147	$ 116	$ 296	$ 161
Net income per share
Basic (in dollars per share)	$ 2.78	$ 2.04	$ 5.61	$ 2.85
Diluted (in dollars per share)	2.74	2.03	5.54	2.83
Cash dividends declared (in dollars per share)	$ 0.06	$ 0.05	$ 0.12	$ 0.10
Weighted average shares outstanding
Basic (in shares)	52,763,868	56,790,642	52,719,959	56,723,254
Diluted (in shares)	53,536,669	57,123,706	53,417,896	57,156,815