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Equity in Net Assets of Nonconsolidated Affiliates (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Equity income (loss) | $ 187 |  |  | $ 328 |  |  | $ 477 | $ 548 |
Automotive China JVs' net sales | 48,757 |  |  | 44,131 |  |  | 139,740 | 128,863 |
Automotive China JVs' net income (loss) | 3,008 | $ 2,877 | $ 2,953 | 2,994 | $ 2,507 | $ 2,346 | 8,837 | 7,846 |
Dividends declared |  |  |  |  |  |  | 664 |  |
Distributions received |  |  |  | 101 |  |  | 190 | 514 |
Equity Method Investee |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Undistributed earnings | 2,000 |  |  |  |  |  | 2,000 |  | $ 1,700
Automotive China Joint Ventures |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Automotive China JVs' net sales | 4,480 |  |  | 7,858 |  |  | 13,268 | 21,817 |
Automotive China JVs' net income (loss) | (282) |  |  | 485 |  |  | (724) | 904 |
Automotive China Joint Ventures |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Equity income (loss) | (137) |  |  | 192 |  |  | (347) | 353 |
Ultium Cells Holdings LLC equity income (loss) |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Equity income (loss) | 309 |  |  | 101 |  |  | 788 | 191 |
Other joint ventures equity income (loss) |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Equity income (loss) | $ 15 |  |  | $ 35 |  |  | $ 36 | $ 4 |
Automotive China Joint Ventures and Ultium Cell Holdings LLC |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |
Change in ownership percentage |  |  |  |  |  |  | 0.00% |  |

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