Finance Receivables - Credit Quality and Impaired Receivables (Details) - USD ($) | 6 Months Ended | |
Jun. 30, 2021 | Dec. 31, 2020 |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Non-Accrual of Revenue | 90 | |
Financing Receivables | $ 92,584,000,000 | $ 106,375,000,000 |
Wholesale and Dealer Loans [Member] | Financing Receivable [Member] | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 56,000,000 | 99,000,000 |
Commercial Portfolio Segment [Member] | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 17,277,000,000 | 28,205,000,000 |
Financing Receivable, Revolving | 14,321,000,000 | 24,996,000,000 |
Commercial Portfolio Segment [Member] | Group I | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 11,802,000,000 | 20,017,000,000 |
Financing Receivable, Revolving | 10,665,000,000 | 18,769,000,000 |
Commercial Portfolio Segment [Member] | Group I | Percent of Total | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 0.752 | 0.755 |
Commercial Portfolio Segment [Member] | Group II | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 2,975,000,000 | 4,874,000,000 |
Financing Receivable, Revolving | 2,806,000,000 | 4,680,000,000 |
Commercial Portfolio Segment [Member] | Group II | Percent of Total | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 0.189 | 0.184 |
Commercial Portfolio Segment [Member] | Group III | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 860,000,000 | 1,533,000,000 |
Financing Receivable, Revolving | 797,000,000 | 1,464,000,000 |
Commercial Portfolio Segment [Member] | Group III | Percent of Total | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 0.055 | 0.058 |
Commercial Portfolio Segment [Member] | Group IV | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 63,000,000 | 93,000,000 |
Financing Receivable, Revolving | 53,000,000 | 83,000,000 |
Commercial Portfolio Segment [Member] | Group IV | Percent of Total | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 0.004 | 0.003 |
Commercial Portfolio Segment [Member] | Dealer Loan | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivable, Originated Five or More Years before Latest Fiscal Year | 562,000,000 | 552,000,000 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 95,000,000 | 149,000,000 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 216,000,000 | 124,000,000 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 61,000,000 | 242,000,000 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 134,000,000 | 78,000,000 |
Financing Receivable, Originated in Current Fiscal Year | 311,000,000 | 376,000,000 |
Financing Receivable Originations Total | 1,379,000,000 | 1,521,000,000 |
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 | 530,000,000 | 503,000,000 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 87,000,000 | 129,000,000 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 178,000,000 | 110,000,000 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 52,000,000 | 188,000,000 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 115,000,000 | 70,000,000 |
Financing Receivable, Originated in Current Fiscal Year | 175,000,000 | 248,000,000 |
Financing Receivable Originations Total | 1,137,000,000 | 1,248,000,000 |
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 | 15,000,000 | 38,000,000 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 7,000,000 | 20,000,000 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 33,000,000 | 11,000,000 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 3,000,000 | 35,000,000 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 15,000,000 | 3,000,000 |
Financing Receivable, Originated in Current Fiscal Year | 96,000,000 | 87,000,000 |
Financing Receivable Originations Total | 169,000,000 | 194,000,000 |
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 | 17,000,000 | 9,000,000 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 1,000,000 | 0 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 5,000,000 | 3,000,000 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 2,000,000 | 19,000,000 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 3,000,000 | 3,000,000 |
Financing Receivable, Originated in Current Fiscal Year | 35,000,000 | 35,000,000 |
Financing Receivable Originations Total | 63,000,000 | 69,000,000 |
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 | 0 | 2,000,000 |
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 | 4,000,000 | 0 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 1,000,000 | 2,000,000 |
Financing Receivable, Originated in Current Fiscal Year | 5,000,000 | 6,000,000 |
Financing Receivable Originations Total | 10,000,000 | 10,000,000 |
Commercial Portfolio Segment [Member] | Commercial Portfolio Segment [Member] | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 15,700,000,000 | 26,517,000,000 |
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 | 15,700,000,000 | 26,517,000,000 |
Consumer Portfolio Segment [Member] | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 75,307,000,000 | 78,170,000,000 |
Financing Receivable, Originated Five or More Years before Latest Fiscal Year | 1,821,000,000 | 845,000,000 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 4,503,000,000 | 2,599,000,000 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 10,097,000,000 | 6,790,000,000 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 16,951,000,000 | 13,939,000,000 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 28,432,000,000 | 21,074,000,000 |
Financing Receivable, Originated in Current Fiscal Year | 13,503,000,000 | 32,923,000,000 |
Consumer Portfolio Segment [Member] | Financing Receivables, 31-60 Days Past Due [Member] | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 482,000,000 | 681,000,000 |
Financing Receivable, Originated Five or More Years before Latest Fiscal Year | 52,000,000 | 45,000,000 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 60,000,000 | 62,000,000 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 98,000,000 | 103,000,000 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 114,000,000 | 162,000,000 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 134,000,000 | 166,000,000 |
Financing Receivable, Originated in Current Fiscal Year | 24,000,000 | 143,000,000 |
Consumer Portfolio Segment [Member] | Financing Receivables, 61-120 Days past due [Member] | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 112,000,000 | 163,000,000 |
Financing Receivable, Originated Five or More Years before Latest Fiscal Year | 9,000,000 | 7,000,000 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 13,000,000 | 12,000,000 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 23,000,000 | 24,000,000 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 29,000,000 | 44,000,000 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 31,000,000 | 45,000,000 |
Financing Receivable, Originated in Current Fiscal Year | 7,000,000 | 31,000,000 |
Consumer Portfolio Segment [Member] | Financing Receivables, Greater Than 120 Days Past Due [Member] | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 47,000,000 | 41,000,000 |
Financing Receivable, Originated Five or More Years before Latest Fiscal Year | 13,000,000 | 11,000,000 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 7,000,000 | 6,000,000 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 9,000,000 | 7,000,000 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 10,000,000 | 8,000,000 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 8,000,000 | 7,000,000 |
Financing Receivable, Originated in Current Fiscal Year | 0 | 2,000,000 |
Consumer Portfolio Segment [Member] | Total past due [Member] | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 641,000,000 | 885,000,000 |
Financing Receivable, Originated Five or More Years before Latest Fiscal Year | 74,000,000 | 63,000,000 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 80,000,000 | 80,000,000 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 130,000,000 | 134,000,000 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 153,000,000 | 214,000,000 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 173,000,000 | 218,000,000 |
Financing Receivable, Originated in Current Fiscal Year | 31,000,000 | 176,000,000 |
Consumer Portfolio Segment [Member] | Financial Asset, 1 to 29 Days Past Due [Member] | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 74,666,000,000 | 77,285,000,000 |
Financing Receivable, Originated Five or More Years before Latest Fiscal Year | 1,747,000,000 | 782,000,000 |
Financing Receivable, Originated Four Years before Latest Fiscal Year | 4,423,000,000 | 2,519,000,000 |
Financing Receivable, Originated Three Years before Latest Fiscal Year | 9,967,000,000 | 6,656,000,000 |
Financing Receivable, Originated Two Years before Latest Fiscal Year | 16,798,000,000 | 13,725,000,000 |
Financing Receivable, Originated in Fiscal Year before Latest Fiscal Year | 28,259,000,000 | 20,856,000,000 |
Financing Receivable, Originated in Current Fiscal Year | 13,472,000,000 | 32,747,000,000 |
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 | 0.006 | 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 | 0.001 | 0 |
Consumer Portfolio Segment [Member] | Percent of Total | Total past due [Member] | | |
Financing Receivable, Credit Quality Indicator [Line Items] | | |
Financing Receivables | 0.009 | 0.011 |
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 | $ 0.991 | $ 0.989 |
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 | |