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GM Financial Receivables and Transactions - Intercompany Transactions (Details) - GM Financial - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Related Party Transactions [Line Items] |  |  |
Financing receivable, net | $ 62,816 | $ 57,992 |
Common stock dividends declared and paid | 3,500 | 800 | $ 400
Commercial Portfolio Segment |  |  |
Related Party Transactions [Line Items] |  |  |
Financing receivable, net | 6,562 | 8,619 |
Eliminations/ Reclassifications |  |  |
Related Party Transactions [Line Items] |  |  |
Subvention receivable | 282 | 642 |
Interest subvention earned on finance receivables | 820 | 679 | 588
Leased vehicle subvention earned | 2,702 | 3,042 | 3,273
Cash payments to GM Financial | 3,300 | 3,900 | $ 4,100
Eliminations/ Reclassifications | Commercial Portfolio Segment |  |  |
Related Party Transactions [Line Items] |  |  |
Financing receivable, net | 163 | 398 |
Commercial loan funding payable | $ 26 | $ 23 |

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