Finance Receivables - Credit Quality and Impaired Receivables (Details) - USD ($) | 3 Months Ended |
Mar. 31, 2024 | Dec. 31, 2023 |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Non-Accrual of Revenue | 90 | |
Financing Receivables | $ 116,244,000,000 | $ 113,705,000,000 |
Wholesale and Dealer Loans [Member] | Financing Receivable [Member] | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 19,000,000 | 33,000,000 |
Commercial Portfolio Segment [Member] | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 36,204,000,000 | 35,313,000,000 |
Financing Receivable, Revolving | 33,309,000,000 | 32,262,000,000 |
Financing Receivable, Revolving, Writeoff | 0 | 3,000,000 |
Commercial Portfolio Segment [Member] | Group I | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 31,129,000,000 | 30,132,000,000 |
Financing Receivable, Revolving | 30,180,000,000 | 29,095,000,000 |
Commercial Portfolio Segment [Member] | Group I | Percent of Total | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 0.907 | 0.903 |
Commercial Portfolio Segment [Member] | Group II | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 2,911,000,000 | 2,900,000,000 |
Financing Receivable, Revolving | 2,859,000,000 | 2,834,000,000 |
Commercial Portfolio Segment [Member] | Group II | Percent of Total | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 0.085 | 0.087 |
Commercial Portfolio Segment [Member] | Group III | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 247,000,000 | 301,000,000 |
Financing Receivable, Revolving | 240,000,000 | 292,000,000 |
Commercial Portfolio Segment [Member] | Group III | Percent of Total | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 0.007 | 0.009 |
Commercial Portfolio Segment [Member] | Group IV | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 32,000,000 | 44,000,000 |
Financing Receivable, Revolving | 30,000,000 | 41,000,000 |
Commercial Portfolio Segment [Member] | Group IV | Percent of Total | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 0.001 | 0.001 |
Commercial Portfolio Segment [Member] | Dealer Loan | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivable, Originated Five or More Years before Latest Fiscal Year | 316,000,000 | 399,000,000 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 60,000,000 | 31,000,000 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 115,000,000 | 59,000,000 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 63,000,000 | 159,000,000 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 273,000,000 | 64,000,000 |
Financing Receivable, Originated in Current Fiscal Year | 183,000,000 | 403,000,000 |
Financing Receivable Originations Total | 1,010,000,000 | 1,115,000,000 |
Commercial Portfolio Segment [Member] | Dealer Loan | Group I | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivable, Originated Five or More Years before Latest Fiscal Year | 299,000,000 | 383,000,000 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 60,000,000 | 30,000,000 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 111,000,000 | 58,000,000 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 61,000,000 | 156,000,000 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 268,000,000 | 61,000,000 |
Financing Receivable, Originated in Current Fiscal Year | 150,000,000 | 349,000,000 |
Financing Receivable Originations Total | 949,000,000 | 1,037,000,000 |
Commercial Portfolio Segment [Member] | Dealer Loan | Group II | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivable, Originated Five or More Years before Latest Fiscal Year | 16,000,000 | 16,000,000 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 0 | 0 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 4,000,000 | 1,000,000 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 2,000,000 | 3,000,000 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 4,000,000 | 2,000,000 |
Financing Receivable, Originated in Current Fiscal Year | 26,000,000 | 44,000,000 |
Financing Receivable Originations Total | 52,000,000 | 66,000,000 |
Commercial Portfolio Segment [Member] | Dealer Loan | Group III | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivable, Originated Five or More Years before Latest Fiscal Year | 0 | 0 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 0 | 0 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 0 | 0 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 0 | 0 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 0 | 1,000,000 |
Financing Receivable, Originated in Current Fiscal Year | 7,000,000 | 8,000,000 |
Financing Receivable Originations Total | 7,000,000 | 9,000,000 |
Commercial Portfolio Segment [Member] | Dealer Loan | Group IV | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivable, Originated Five or More Years before Latest Fiscal Year | 1,000,000 | 0 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 0 | 1,000,000 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 0 | 0 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 0 | 0 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 1,000,000 | 0 |
Financing Receivable, Originated in Current Fiscal Year | 0 | 2,000,000 |
Financing Receivable Originations Total | 2,000,000 | 3,000,000 |
Commercial Portfolio Segment [Member] | Commercial Portfolio Segment [Member] | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 34,319,000,000 | 33,377,000,000 |
Commercial Portfolio Segment [Member] | Commercial Portfolio Segment [Member] | Percent of Total | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 1 | 1 |
Commercial Portfolio Segment [Member] | Wholesale and Dealer Loans [Member] | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 34,319,000,000 | 33,377,000,000 |
Financing Receivable, Allowance for Credit Loss, Writeoff | 0 | 4,000,000 |
Commercial Portfolio Segment [Member] | Dealer Loans | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivable, Allowance for Credit Loss, Writeoff | 0 | 1,000,000 |
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff | 0 | 1,000,000 |
Financing Receivable, Year Three, Originated, Two Years Before Current Fiscal Year, Writeoff | 0 | 0 |
Financing Receivable, Year Four, Originated, Three Years Before Current Fiscal Year, Writeoff | 0 | 0 |
Financing Receivable, Year Five, Originated, Four Years Before Current Fiscal Year, Writeoff | 0 | 0 |
Financing Receivable, Originated, More Than Five Years before Current Fiscal Year, Writeoff | 0 | 0 |
Financing Receivable, Year Two, Originated, Fiscal Year Before Current Fiscal Year, Writeoff | 0 | 0 |
Consumer Portfolio Segment [Member] | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 80,040,000,000 | 78,392,000,000 |
Financing Receivable, Originated Five or More Years before Latest Fiscal Year | 2,479,000,000 | 947,000,000 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 6,249,000,000 | 2,424,000,000 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 9,829,000,000 | 7,562,000,000 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 18,427,000,000 | 11,497,000,000 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 32,855,000,000 | 20,536,000,000 |
Financing Receivable, Originated in Current Fiscal Year | 10,201,000,000 | 35,426,000,000 |
Financing Receivable, Allowance for Credit Loss, Writeoff | 129,000,000 | 401,000,000 |
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff | 0 | 37,000,000 |
Financing Receivable, Year Three, Originated, Two Years Before Current Fiscal Year, Writeoff | 39,000,000 | 85,000,000 |
Financing Receivable, Year Four, Originated, Three Years Before Current Fiscal Year, Writeoff | 22,000,000 | 75,000,000 |
Financing Receivable, Year Five, Originated, Four Years Before Current Fiscal Year, Writeoff | 17,000,000 | 40,000,000 |
Financing Receivable, Originated, More Than Five Years before Current Fiscal Year, Writeoff | 15,000,000 | 47,000,000 |
Financing Receivable, Year Two, Originated, Fiscal Year Before Current Fiscal Year, Writeoff | 36,000,000 | 117,000,000 |
Consumer Portfolio Segment [Member] | Financing Receivables, 31-60 Days Past Due [Member] | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 612,000,000 | 690,000,000 |
Financing Receivable, Originated Five or More Years before Latest Fiscal Year | 63,000,000 | 40,000,000 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 98,000,000 | 49,000,000 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 103,000,000 | 130,000,000 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 164,000,000 | 125,000,000 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 172,000,000 | 187,000,000 |
Financing Receivable, Originated in Current Fiscal Year | 12,000,000 | 159,000,000 |
Consumer Portfolio Segment [Member] | Financing Receivables, 61-120 Days past due [Member] | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 163,000,000 | 195,000,000 |
Financing Receivable, Originated Five or More Years before Latest Fiscal Year | 13,000,000 | 9,000,000 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 21,000,000 | 11,000,000 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 27,000,000 | 30,000,000 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 46,000,000 | 37,000,000 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 54,000,000 | 58,000,000 |
Financing Receivable, Originated in Current Fiscal Year | 2,000,000 | 50,000,000 |
Consumer Portfolio Segment [Member] | Financing Receivables, Greater Than 120 Days Past Due [Member] | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 49,000,000 | 43,000,000 |
Financing Receivable, Originated Five or More Years before Latest Fiscal Year | 10,000,000 | 7,000,000 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 8,000,000 | 4,000,000 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 9,000,000 | 7,000,000 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 14,000,000 | 10,000,000 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 8,000,000 | 10,000,000 |
Financing Receivable, Originated in Current Fiscal Year | 0 | 5,000,000 |
Consumer Portfolio Segment [Member] | Total past due [Member] | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 824,000,000 | 928,000,000 |
Financing Receivable, Originated Five or More Years before Latest Fiscal Year | 86,000,000 | 56,000,000 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 127,000,000 | 64,000,000 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 139,000,000 | 167,000,000 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 224,000,000 | 172,000,000 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 234,000,000 | 255,000,000 |
Financing Receivable, Originated in Current Fiscal Year | 14,000,000 | 214,000,000 |
Consumer Portfolio Segment [Member] | Financial Asset, 1 to 29 Days Past Due [Member] | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 79,216,000,000 | 77,464,000,000 |
Financing Receivable, Originated Five or More Years before Latest Fiscal Year | 2,393,000,000 | 891,000,000 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 6,122,000,000 | 2,360,000,000 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 9,690,000,000 | 7,395,000,000 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 18,203,000,000 | 11,325,000,000 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 32,621,000,000 | 20,281,000,000 |
Financing Receivable, Originated in Current Fiscal Year | 10,187,000,000 | 35,212,000,000 |
Consumer Portfolio Segment [Member] | Percent of Total | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 1 | 1 |
Consumer Portfolio Segment [Member] | Percent of Total | Financing Receivables, 31-60 Days Past Due [Member] | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 0.008 | 0.009 |
Consumer Portfolio Segment [Member] | Percent of Total | Financing Receivables, 61-120 Days past due [Member] | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 0.002 | 0.002 |
Consumer Portfolio Segment [Member] | Percent of Total | Financing Receivables, Greater Than 120 Days Past Due [Member] | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 0 | 0.001 |
Consumer Portfolio Segment [Member] | Percent of Total | Total past due [Member] | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 0.010 | 0.012 |
Consumer Portfolio Segment [Member] | Percent of Total | Financial Asset, 1 to 29 Days Past Due [Member] | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | $ 0.990 | $ 0.988 |
Consumer Portfolio Segment [Member] | Pass [Member] | Maximum [Member] | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Finance Receivables Credit Quality Ratings Term Range | 60 days | |
Consumer Portfolio Segment [Member] | Substandard [Member] | Minimum [Member] | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Finance Receivables Credit Quality Ratings Term Range | 120 days | |
Consumer Portfolio Segment [Member] | Special Mention [Member] | Maximum [Member] | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Finance Receivables Credit Quality Ratings Term Range | 120 days | |
Consumer Portfolio Segment [Member] | Special Mention [Member] | Minimum [Member] | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Finance Receivables Credit Quality Ratings Term Range | 61 days | |