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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2024
Income Tax Disclosure [Abstract] |
Schedule of Income before Income Taxes and Equity Income |
| Years Ended December 31,
| 2024 |  | 2023 |  | 2022
U.S. income (loss) | $ | 9,729 |  |  | $ | 6,388 |  |  | $ | 9,454 |
Non-U.S. income (loss) | 3,465 |  |  | 3,535 |  |  | 1,306 |
Income (loss) before income taxes and equity income (loss) | $ | 13,194 |  |  | $ | 9,924 |  |  | $ | 10,760 |
Schedule of Components of Income Tax Expense (Benefit) |
| Years Ended December 31,
| 2024 |  | 2023 |  | 2022
Current income tax expense (benefit) |  |  |  |  |
U.S. federal | $ | 202 |  |  | $ | 240 |  |  | $ | 389 |
U.S. state and local | 309 |  |  | 490 |  |  | 368 |
Non-U.S. | 676 |  |  | 874 |  |  | 707 |
Total current income tax expense (benefit) | 1,188 |  |  | 1,605 |  |  | 1,464 |
Deferred income tax expense (benefit) |  |  |  |  |
U.S. federal | 891 |  |  | (120) |  |  | 263 |
U.S. state and local | 101 |  |  | (43) |  |  | 109 |
Non-U.S. | 376 |  |  | (878) |  |  | 53 |
Total deferred income tax expense (benefit) | 1,368 |  |  | (1,041) |  |  | 425 |
Total income tax expense (benefit) | $ | 2,556 |  |  | $ | 563 |  |  | $ | 1,888 |
Schedule of Effective Income Tax Rate Reconciliation |
| Years Ended December 31,
| 2024 |  | 2023 |  | 2022
Income tax expense at U.S. federal statutory income tax rate | $ | 2,771 |  |  | $ | 2,084 |  |  | $ | 2,260 |
State and local tax expense (benefit) | 323 |  |  | 348 |  |  | 388 |
Non-U.S. income taxed at other than the U.S. federal statutory tax rate | 130 |  |  | 203 |  |  | 32 |
U.S. tax impact on Non-U.S. income and activities | (49) |  |  | (62) |  |  | 5 |
Change in valuation allowances | 46 |  |  | (1,061) |  |  | (392) |
Change in tax laws | 9 |  |  | 25 |  |  | 78 |
General business credits and manufacturing incentives | (906) |  |  | (966) |  |  | (829) |
Settlements of prior year tax matters | — |  |  | 23 |  |  | — |
Realization of basis differences in affiliates | (45) |  |  | — |  |  | 209 |
Foreign currency remeasurement | 73 |  |  | (62) |  |  | 36 |
Other adjustments | 204 |  |  | 31 |  |  | 102 |
Total income tax expense (benefit) | $ | 2,556 |  |  | $ | 563 |  |  | $ | 1,888 |
Schedule of Deferred Tax Assets and Liabilities | The following table summarizes the components of temporary differences and carryforwards that give rise to deferred tax assets and liabilities:
| December 31, 2024 |  | December 31, 2023
Deferred tax assets |  |  |
Postretirement benefits other than pensions | $ | 1,024 |  |  | $ | 1,119 |
Pension and other employee benefit plans | 1,421 |  |  | 1,522 |
Warranties, dealer and customer allowances, claims and discounts | 4,215 |  |  | 3,684 |
U.S. capitalized research expenditures | 10,111 |  |  | 9,879 |
U.S. operating loss and tax credit carryforwards(a) | 6,582 |  |  | 6,033 |
Non-U.S. operating loss and tax credit carryforwards(b) | 5,239 |  |  | 6,204 |
Miscellaneous | 4,302 |  |  | 5,121 |
Total deferred tax assets before valuation allowances | 32,894 |  |  | 33,562 |
Less: valuation allowances | (6,529) |  |  | (6,979) |
Total deferred tax assets | 26,365 |  |  | 26,583 |
Deferred tax liabilities |  |  |
Property, plant and equipment | 5,111 |  |  | 4,233 |
Intangible assets | 635 |  |  | 699 |
Total deferred tax liabilities | 5,746 |  |  | 4,932 |
Net deferred tax assets | $ | 20,619 |  |  | $ | 21,651 |
__________ (a)At December 31, 2024, U.S. operating loss deferred tax assets were $411 million, where $129 million can be carried forward indefinitely and $282 million will expire by 2042, if not utilized. At December 31, 2024, U.S. tax credit carryforwards were $6.2 billion, where $462 million can be carried forward indefinitely and $5.7 billion will expire by 2044, if not utilized. (b)At December 31, 2024, Non-U.S. operating loss deferred tax assets were $5.2 billion, where $4.8 billion can be carried forward indefinitely and $342 million will expire by 2044, if not utilized. At December 31, 2024, Non-U.S. tax credit carryforwards were $68 million, where $45 million can be carried forward indefinitely and $23 million will expire by 2043, if not utilized.
Schedule of Unrecognized Tax Benefits Roll Forward | The following table summarizes activity of the total amounts of unrecognized tax benefits:
| Years Ended December 31,
| 2024 |  | 2023 |  | 2022
Balance at beginning of period | $ | 585 |  |  | $ | 520 |  |  | $ | 634 |
Additions to current year tax positions | 108 |  |  | 45 |  |  | 12 |
Additions to prior years' tax positions | 28 |  |  | 72 |  |  | 14 |
Reductions to prior years' tax positions | (109) |  |  | (15) |  |  | (98) |
Reductions in tax positions due to lapse of statutory limitations | (7) |  |  | (19) |  |  | (20) |
Settlements | (8) |  |  | (18) |  |  | (10) |
Other | (11) |  |  | — |  |  | (12) |
Balance at end of period | $ | 586 |  |  | $ | 585 |  |  | $ | 520 |

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