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Income Taxes (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024
Tax Credit Carryforward [Line Items] |  |  |
Effective tax rate (as a percent) | 19.10% | 23.70% |
Unrecognized tax benefits that would affect the effective tax rate | $ 669 |  | $ 686
Deferred tax asset, noncurrent | 4,000 |  |
Deferred tax assets valuation allowance | 1,000 |  | $ 1,100
PWS Settlement |  |  |
Tax Credit Carryforward [Line Items] |  |  |
Deferred tax assets | $ 2,600 |  |

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