Segment Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Segment Reporting Information [Line Items]
Total revenue	$ 2,556	$ 2,326
Income before income taxes	303	754
Other disclosures [Abstract]
Depreciation on vehicles subject to operating leases	559	515
Interest expense	1,392	611
Financing Receivable, Credit Loss, Expense (Reversal)	77	(64)
Provision for credit losses	77	(64)
Net finance receivables and net investment in operating leases	123,827	117,395
Total assets	138,932	133,577	$ 138,576
Reportable segments
Segment Reporting Information [Line Items]
Total revenue	2,556	2,326
Income before income taxes	373	678
Other disclosures [Abstract]
Depreciation on vehicles subject to operating leases	559	515
Interest expense	1,376	654
Financing Receivable, Credit Loss, Expense (Reversal)	77	(64)
Net finance receivables and net investment in operating leases	123,827	117,395
Total assets	138,932	133,577
Reportable segments | All Other
Other disclosures [Abstract]
Net finance receivables and net investment in operating leases	4,943	5,449
Total assets	5,622	6,182
Reportable segments | United States and Canada
Other disclosures [Abstract]
Net finance receivables and net investment in operating leases	98,659	93,955
Total assets	109,955	106,762
Reportable segments | Europe
Other disclosures [Abstract]
Net finance receivables and net investment in operating leases	20,225	17,991
Total assets	23,355	20,633
Reportable segments | United States and Canada
Segment Reporting Information [Line Items]
Total revenue	2,170	2,029
Income before income taxes	273	766
Other disclosures [Abstract]
Depreciation on vehicles subject to operating leases	557	526
Interest expense	1,195	558
Financing Receivable, Credit Loss, Expense (Reversal)	63	(67)
Reportable segments | Europe
Segment Reporting Information [Line Items]
Total revenue	284	195
Income before income taxes	78	76
Other disclosures [Abstract]
Depreciation on vehicles subject to operating leases	2	(11)
Interest expense	130	48
Financing Receivable, Credit Loss, Expense (Reversal)	4	(3)
Reportable segments | All Other
Segment Reporting Information [Line Items]
Total revenue	102	102
Income before income taxes	22	(164)
Other disclosures [Abstract]
Depreciation on vehicles subject to operating leases	0	0
Interest expense	51	48
Financing Receivable, Credit Loss, Expense (Reversal)	10	6
Unallocated other
Segment Reporting Information [Line Items]
Total revenue	0	0
Income before income taxes	(70)	76
Other disclosures [Abstract]
Depreciation on vehicles subject to operating leases	0	0
Interest expense	16	(43)
Financing Receivable, Credit Loss, Expense (Reversal)	0	0
Net finance receivables and net investment in operating leases	0	0
Total assets	$ 0	$ 0