Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Statement [Abstract]
Interest income	$ 1,118	$ 1,113	$ 3,313	$ 3,244
Interest expense	223	237	661	703
Net interest income	895	876	2,652	2,541
Provision for finance receivable losses	421	226	998	356
Net interest income after provision for finance receivable losses	474	650	1,654	2,185
Other revenues:
Insurance	111	109	334	323
Investment	16	14	40	47
Gain on sales of finance receivables	17	15	50	30
Net gain (loss) on repurchases and repayments of debt	2	(1)	(26)	(49)
Other	24	18	62	45
Total other revenues	170	155	460	396
Other expenses:
Salaries and benefits	212	229	621	613
Other operating expenses	151	155	451	457
Insurance policy benefits and claims	31	45	116	125
Total other expenses	394	429	1,188	1,195
Income before income taxes	250	376	926	1,386
Income taxes	62	88	228	335
Net income	$ 188	$ 288	$ 698	$ 1,051
Weighted average number of shares outstanding:
Basic (in shares)	123,352,522	132,487,234	124,989,263	133,709,146
Diluted (in shares)	123,568,620	132,924,333	125,243,206	134,096,382
Earnings per share:
Basic (in dollars per share)	$ 1.52	$ 2.17	$ 5.58	$ 7.86
Diluted (in dollars per share)	$ 1.52	$ 2.17	$ 5.57	$ 7.84