Segment Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Total revenue	$ 13,253	$ 11,119	$ 9,416
Income before income taxes	1,654	1,322	2,437
Other disclosures [Abstract]
Depreciation on vehicles subject to operating leases	(2,482)	(2,309)	(2,240)
Interest expense	7,583	6,311	3,334
Financing Receivable, Credit Loss, Expense (Reversal)	417	278	39
Segment Reporting, Other Segment Item, Amount	1,117	899	1,366
Net finance receivables and net investment in operating leases	143,639	133,155	122,334
Total assets	158,292	149,205	138,576
Operating Segments [Member]
Segment Reporting Information [Line Items]
Total revenue	13,253	11,119	9,416
Income before income taxes	1,877	1,495	2,270
Other disclosures [Abstract]
Depreciation on vehicles subject to operating leases	(2,482)	(2,309)	(2,240)
Interest expense	7,195	6,125	3,458
Financing Receivable, Credit Loss, Expense (Reversal)	417	278	39
Segment Reporting, Other Segment Item, Amount	1,282	912	1,409
Net finance receivables and net investment in operating leases	143,639	133,155	122,334
Total assets	158,292	149,205	138,576
Operating Segments [Member] | Americas [Member]
Segment Reporting Information [Line Items]
Total revenue	11,290	9,362	8,189
Income before income taxes	1,460	1,114	2,094
Other disclosures [Abstract]
Depreciation on vehicles subject to operating leases	(2,447)	(2,284)	(2,271)
Interest expense	6,062	5,199	3,035
Financing Receivable, Credit Loss, Expense (Reversal)	333	237	10
Segment Reporting, Other Segment Item, Amount	988	528	779
Net finance receivables and net investment in operating leases	118,969	107,695	98,869
Total assets	129,599	118,611	110,023
Operating Segments [Member] | Europe [Member]
Segment Reporting Information [Line Items]
Total revenue	1,508	1,316	829
Income before income taxes	357	306	314
Other disclosures [Abstract]
Depreciation on vehicles subject to operating leases	(35)	(25)	(31)
Interest expense	875	684	233
Financing Receivable, Credit Loss, Expense (Reversal)	34	10	(10)
Segment Reporting, Other Segment Item, Amount	207	291	323
Net finance receivables and net investment in operating leases	20,469	20,249	18,400
Total assets	23,993	24,601	22,690
Operating Segments [Member] | Asia Pacific [Member]
Segment Reporting Information [Line Items]
Total revenue	455	441	398
Income before income taxes	60	75	(138)
Other disclosures [Abstract]
Depreciation on vehicles subject to operating leases	0	0	0
Interest expense	258	242	190
Financing Receivable, Credit Loss, Expense (Reversal)	50	31	39
Segment Reporting, Other Segment Item, Amount	87	93	307
Net finance receivables and net investment in operating leases	4,201	5,211	5,065
Total assets	4,700	5,993	5,863
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]
Segment Reporting Information [Line Items]
Total revenue	0	0	0
Income before income taxes	(223)	(173)	167
Other disclosures [Abstract]
Depreciation on vehicles subject to operating leases	0	0	0
Interest expense	388	186	(124)
Financing Receivable, Credit Loss, Expense (Reversal)	0	0	0
Segment Reporting, Other Segment Item, Amount	(165)	(13)	(43)
Net finance receivables and net investment in operating leases	0	0	0
Total assets	$ 0	$ 0	$ 0