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Taxes - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Income Tax Disclosure [Abstract] |  |  |  |
Increase in income tax expense | $ 1,584 |  |  |
Increase in effective tax rate | 35.50% | 27.60% | 28.30% |
Increase in deferred tax liabilities |  | $ 1,336 |  |
Increase in deferred tax assets |  | (1,273) |  |
Increase in valuation allowance | $ 897 |  |  |
Loss carryforward | 9,231 |  |  |
Tax credit carryforward | 288 |  |  |
Carry forward amount of foreign tax credit with expiration dates | $ 15,261 | 15,261 |  |
Percentage of impact of unrecognized tax benefits on effective tax rate if subsequently recognized | 76.00% |  |  |
Unrecognized tax benefits | $ 4,852 | 5,452 | $ 5,323 | $ 5,288
Decrease in unrecognized tax benefits, percent | 68.00% |  |  |
Anticipated interest and penalty obligations | $ 268 |  |  |
Accrued benefit for interest and penalties |  | 229 |  |
Income tax benefit expense associated with interest and penalties | $ 40 | $ 124 | $ 152 |

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