GM Financial Receivables and Transactions - Transfers of Finance Receivables (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Finance Receivables [Line Items] | |||
| Proceeds from sale of finance receivables (Note 5) | $ 2,005 | $ 0 | $ 0 |
| GM Financial | |||
| Finance Receivables [Line Items] | |||
| Outstanding balance of the transferred finance receivables | 1,700 | ||
| GM Financial | |||
| Finance Receivables [Line Items] | |||
| Proceeds from sale of finance receivables (Note 5) | $ 2,000 | ||