Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions |
Sep. 30, 2023 |
Dec. 31, 2022 |
|---|---|---|
| Common stock par value (in dollars per share) | $ 0.01 | $ 0.01 |
| Automotive | ||
| Accounts receivable, allowance for credit loss, current | $ 275 | $ 260 |
| GM Financial | ||
| Accounts receivable, allowance for credit loss, current | 856 | 869 |
| Accounts receivable, allowance for credit loss, noncurrent | $ 1,402 | $ 1,227 |