Finance Receivables - Credit Quality and Impaired Receivables (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables	$ 101,358,000,000	$ 93,275,000,000
Finance receivables before unearned interest supplements	6,765,000,000	7,318,000,000
Related Party Transaction, Expenses from Transactions with Related Party	(307,000,000)	(274,000,000)
Finance receivables, net	6,423,000,000	7,003,000,000
Sales-type Lease, Interest Income, Unguaranteed Residual Asset	2,389,000,000	2,605,000,000
Deferred Costs, Leasing, Gross	79,000,000	82,000,000
Sales-Type and Direct Financing Lease, Gross	4,297,000,000	4,631,000,000
Sales Type and Direct Financing Lease Revenue	$ 303,000,000	345,000,000	$ 357,000,000
Non-Accrual of Revenue	90
Finance Leases Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Allowance for Credit Loss	$ (35,000,000)	(41,000,000)
Wholesale and Dealer Loans [Member] | Financing Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables	9,000,000	62,000,000
Consumer Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables	71,503,000,000	73,545,000,000
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	942,000,000	868,000,000
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	2,640,000,000	2,676,000,000
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	6,265,000,000	6,692,000,000
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	14,091,000,000	12,875,000,000
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	18,579,000,000	22,967,000,000
Financing Receivable, Year One, Originated, Current Fiscal Year	$ 28,986,000,000	27,467,000,000
Financing Receivable, Credit Quality, Range of Dates Ratings Updated	to 120 days
Consumer Segment [Member] | Percent of Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables	$ 1.000	1.000
Consumer Segment [Member] | 31-60 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables	649,000,000	586,000,000
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	41,000,000	39,000,000
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	60,000,000	52,000,000
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	91,000,000	98,000,000
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	181,000,000	120,000,000
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	150,000,000	186,000,000
Financing Receivable, Year One, Originated, Current Fiscal Year	126,000,000	91,000,000
Consumer Segment [Member] | 31-60 Days Past Due [Member] | Percent of Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables	0.009	0.008
Consumer Segment [Member] | Financing Receivables, 61-120 Days past due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables	149,000,000	127,000,000
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	9,000,000	7,000,000
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	12,000,000	10,000,000
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	20,000,000	20,000,000
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	39,000,000	29,000,000
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	40,000,000	40,000,000
Financing Receivable, Year One, Originated, Current Fiscal Year	29,000,000	21,000,000
Consumer Segment [Member] | Financing Receivables, 61-120 Days past due [Member] | Percent of Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables	0.002	0.002
Consumer Segment [Member] | Greater Than 120 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables	38,000,000	43,000,000
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	9,000,000	10,000,000
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	4,000,000	6,000,000
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	5,000,000	6,000,000
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	7,000,000	9,000,000
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	7,000,000	11,000,000
Financing Receivable, Year One, Originated, Current Fiscal Year	6,000,000	1,000,000
Consumer Segment [Member] | Greater Than 120 Days Past Due [Member] | Percent of Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables	0.001	0
Consumer Segment [Member] | Total past due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables	836,000,000	756,000,000
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	59,000,000	56,000,000
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	76,000,000	68,000,000
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	116,000,000	124,000,000
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	227,000,000	158,000,000
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	197,000,000	237,000,000
Financing Receivable, Year One, Originated, Current Fiscal Year	161,000,000	113,000,000
Consumer Segment [Member] | Total past due [Member] | Percent of Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables	0.012	0.010
Consumer Segment [Member] | Financial Asset, 1 to 29 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables	70,667,000,000	72,789,000,000
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	883,000,000	812,000,000
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	2,564,000,000	2,608,000,000
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	6,149,000,000	6,568,000,000
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	13,864,000,000	12,717,000,000
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	18,382,000,000	22,730,000,000
Financing Receivable, Year One, Originated, Current Fiscal Year	28,825,000,000	27,354,000,000
Consumer Segment [Member] | Financial Asset, 1 to 29 Days Past Due [Member] | Percent of Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables	$ 0.988	0.990
Consumer Segment [Member] | Pass [Member] | Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance Receivables Credit Quality Ratings Term Range	60 days
Consumer Segment [Member] | Substandard [Member] | Minimum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Finance Receivables Credit Quality Ratings Term Range	120 days
Non-Consumer Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables	$ 29,855,000,000	19,730,000,000
Financing Receivable, Revolving	27,261,000,000	16,944,000,000
Non-Consumer Segment [Member] | Group I [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables	25,303,000,000	14,779,000,000
Financing Receivable, Revolving	24,242,000,000	13,670,000,000
Non-Consumer Segment [Member] | Group I [Member] | Percent of Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables	0.891	0.812
Non-Consumer Segment [Member] | Group II [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables	2,823,000,000	2,793,000,000
Financing Receivable, Revolving	2,751,000,000	2,689,000,000
Non-Consumer Segment [Member] | Group II [Member] | Percent of Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables	0.099	0.153
Non-Consumer Segment [Member] | Group III [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables	243,000,000	559,000,000
Financing Receivable, Revolving	233,000,000	529,000,000
Non-Consumer Segment [Member] | Group III [Member] | Percent of Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables	0.009	0.031
Non-Consumer Segment [Member] | Group IV [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables	39,000,000	66,000,000
Financing Receivable, Revolving	35,000,000	56,000,000
Non-Consumer Segment [Member] | Group IV [Member] | Percent of Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables	0.001	0.004
Non-Consumer Segment [Member] | Dealer Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	404,000,000	410,000,000
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	169,000,000	75,000,000
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	36,000,000	182,000,000
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	72,000,000	47,000,000
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	187,000,000	114,000,000
Financing Receivable, Year One, Originated, Current Fiscal Year	279,000,000	425,000,000
Financing Receivable Total	1,147,000,000	1,253,000,000
Non-Consumer Segment [Member] | Dealer Loan | Group I [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	402,000,000	391,000,000
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	148,000,000	68,000,000
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	35,000,000	151,000,000
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	67,000,000	45,000,000
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	185,000,000	109,000,000
Financing Receivable, Year One, Originated, Current Fiscal Year	224,000,000	345,000,000
Financing Receivable Total	1,061,000,000	1,109,000,000
Non-Consumer Segment [Member] | Dealer Loan | Group II [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	2,000,000	11,000,000
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	21,000,000	7,000,000
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0	26,000,000
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	5,000,000	2,000,000
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	2,000,000	4,000,000
Financing Receivable, Year One, Originated, Current Fiscal Year	42,000,000	54,000,000
Financing Receivable Total	72,000,000	104,000,000
Non-Consumer Segment [Member] | Dealer Loan | Group III [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0	8,000,000
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0	1,000,000
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0	1,000,000
Financing Receivable, Year One, Originated, Current Fiscal Year	10,000,000	20,000,000
Financing Receivable Total	10,000,000	30,000,000
Non-Consumer Segment [Member] | Dealer Loan | Group IV [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	1,000,000	4,000,000
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0	0
Financing Receivable, Year One, Originated, Current Fiscal Year	3,000,000	6,000,000
Financing Receivable Total	4,000,000	10,000,000
Non-Consumer Segment [Member] | Non-Consumer Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables	28,408,000,000	18,197,000,000
Non-Consumer Segment [Member] | Non-Consumer Segment [Member] | Percent of Total
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables	1.000	1.000
Non-Consumer Segment [Member] | Wholesale and Dealer Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivables	$ 28,408,000,000	$ 18,197,000,000