Segment Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Segment Reporting Information [Line Items]
Total revenue	$ 2,348	$ 2,641	$ 4,674	$ 5,358
Income before income taxes	903	1,623	1,657	2,585
Other disclosures [Abstract]
Depreciation on vehicles subject to operating leases	549	191	1,064	759
Interest expense	657	680	1,268	1,484
Financing Receivable, Credit Loss, Expense (Reversal)	(56)	(166)	(120)	(206)
Provision for credit losses	(56)	(166)		(206)
Net finance receivables and net investment in operating leases	115,627	117,760	115,627	117,760
Total assets	128,250	138,811	128,250	138,811	$ 134,945
Reportable segments
Segment Reporting Information [Line Items]
Total revenue	2,348	2,641	4,674	5,358
Income before income taxes	778	1,569	1,456	2,616
Other disclosures [Abstract]
Depreciation on vehicles subject to operating leases	549	191	1,064	759
Interest expense	742	723	1,397	1,497
Financing Receivable, Credit Loss, Expense (Reversal)	(56)	(166)	(120)	(206)
Net finance receivables and net investment in operating leases	115,627	117,760	115,627	117,760
Total assets	128,250	138,811	128,250	138,811
Reportable segments | Europe [Member]
Other disclosures [Abstract]
Net finance receivables and net investment in operating leases	16,212	19,305	16,212	19,305
Total assets	19,158	22,226	19,158	22,226
Reportable segments | All Other
Other disclosures [Abstract]
Net finance receivables and net investment in operating leases	5,124	4,672	5,124	4,672
Total assets	5,803	5,436	5,803	5,436
Reportable segments | United States and Canada
Other disclosures [Abstract]
Net finance receivables and net investment in operating leases	94,291	93,783	94,291	93,783
Total assets	103,289	111,149	103,289	111,149
Reportable segments | United States and Canada
Segment Reporting Information [Line Items]
Total revenue	2,029	2,295	4,058	4,679
Income before income taxes	698	1,466	1,481	2,462
Other disclosures [Abstract]
Depreciation on vehicles subject to operating leases	559	184	1,085	746
Interest expense	632	600	1,174	1,238
Financing Receivable, Credit Loss, Expense (Reversal)	(57)	(165)	(124)	(217)
Reportable segments | Europe
Segment Reporting Information [Line Items]
Total revenue	221	238	416	479
Income before income taxes	97	81	166	147
Other disclosures [Abstract]
Depreciation on vehicles subject to operating leases	(10)	7	(21)	13
Interest expense	57	72	112	152
Financing Receivable, Credit Loss, Expense (Reversal)	(2)	(6)	(5)	(7)
Reportable segments | All Other
Segment Reporting Information [Line Items]
Total revenue	98	108	200	200
Income before income taxes	(17)	22	(191)	7
Other disclosures [Abstract]
Depreciation on vehicles subject to operating leases	0	0	0	0
Interest expense	53	51	111	107
Financing Receivable, Credit Loss, Expense (Reversal)	3	5	9	18
Unallocated other
Segment Reporting Information [Line Items]
Total revenue	0	0	0	0
Income before income taxes	125	54	201	(31)
Other disclosures [Abstract]
Depreciation on vehicles subject to operating leases	0	0	0	0
Interest expense	(85)	(43)	(129)	(13)
Financing Receivable, Credit Loss, Expense (Reversal)	0	0	0	0
Net finance receivables and net investment in operating leases	0	0	0	0
Total assets	$ 0	$ 0	$ 0	$ 0