Condensed Consolidated Statement of Comprehensive Income (unaudited) - USD ($) shares in Thousands, $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Financing revenue and other interest income
Interest and fees on finance receivables and loans		$ 2,674	$ 2,889	$ 8,007	$ 8,561
Interest on loans held-for-sale		6	5	17	48
Interest and dividends on investment securities and other earning assets		250	262	728	793
Interest on cash and cash equivalents		92	102	285	287
Operating leases		365	316	1,068	1,005
Total financing revenue and other interest income		3,387	3,574	10,105	10,694
Interest expense
Interest on deposits		1,302	1,616	4,034	4,861
Interest on short-term borrowings		11	13	17	63
Interest on long-term debt		265	256	794	748
Interest on other		0	0	1	1
Total interest expense		1,578	1,885	4,846	5,673
Net depreciation expense on operating lease assets		225	169	681	516
Net financing revenue and other interest income		1,584	1,520	4,578	4,505
Other revenue
Insurance premiums and service revenue earned		361	359	1,084	1,045
(Loss) gain on mortgage and automotive loans, net		(3)	6	(6)	18
Other gain (loss) on investments, net		56	74	(382)	96
Other income, net of losses		170	176	517	491
Total other revenue		584	615	1,213	1,650
Total net revenue		2,168	2,135	5,791	6,155
Provision for credit losses		415	645	990	1,609
Noninterest expense
Compensation and benefits expense		447	435	1,382	1,396
Insurance losses and loss adjustment expenses		141	135	505	428
Goodwill impairment		0	0	305	0
Other operating expenses		652	655	1,944	1,995
Total noninterest expense		1,240	1,225	4,136	3,819
Income from continuing operations before income tax expense		513	265	665	727
Income tax expense from continuing operations		115	67	140	167
Net income from continuing operations		398	198	525	560
Net income		398	198	525	560
Other comprehensive income, net of tax		275	616	980	423
Comprehensive income		673	814	1,505	983
Net income from continuing operations attributable to common shareholders	[1]	371	171	442	477
Net income attributable to common shareholders	[1]	$ 371	$ 171	$ 442	$ 477
Basic weighted-average common shares outstanding (in shares)	[1],[2]	310,342	307,312	309,753	306,699
Diluted weighted-average common shares outstanding (in shares)	[1],[2]	313,823	311,044	312,633	309,786
Basic earnings per common share
Net income from continuing operations (in dollars per share)	[1]	$ 1.19	$ 0.55	$ 1.43	$ 1.56
Net income (in dollars per share)	[1]	1.19	0.55	1.43	1.56
Diluted earnings per common share
Net income from continuing operations (in dollars per share)	[1]	1.18	0.55	1.41	1.54
Net income (in dollars per share)	[1]	1.18	0.55	1.41	1.54
Cash dividends declared per common share (in dollars per share)	[1]	$ 0.30	$ 0.30	$ 0.90	$ 0.90

[1] Figures in the table may not recalculate exactly due to rounding. Earnings per share is calculated based on unrounded numbers.

[2] (b)Includes shares related to share-based compensation that vested but were not yet issued.