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General and Summary of Significant Accounting Policies (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Mar. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Sep. 30, 2024 | Jun. 30, 2024
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Supplier financing arrangements |  | $ 917 | $ 974 | $ 662 | $ 698 | $ 553
Proceeds From (Payments For) Derivative Interest |  | 187 | 181 | $ 239 |  |
Investment Tax Credit |  | 555 |  |  |  |
Proceeds Investment Tax Credits |  | $ 480 |  |  |  |
Variable Interest Entity, Terms of Arrangements |  | 1.7 billion |  |  |  |
Proceeds Investment Tax Credits |  | $ 480 |  |  |  |
Subsequent Event [Member] |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Proceeds Investment Tax Credits | $ 75 |  |  |  |  |
Proceeds Investment Tax Credits | $ 75 |  |  |  |  |
Income Tax Benefit |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Investment Tax Credit |  | 309 | $ 26 |  |  |
Contribution From Noncontrolling Interest |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Investment Tax Credit |  | $ 220 |  |  |  |

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