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Acquisitions, Development and Divestitures - Divestitures(Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
LGE [Member] |  |  |
Disposal Group [Line Items] |  |  |
Expected Capital Cost Of Expansion Project | $ 1,000 |  |
KU [Member] |  |  |
Disposal Group [Line Items] |  |  |
Expected Capital Cost Of Expansion Project | 1,000 |  |
WPD [Member] |  |  |
Disposal Group [Line Items] |  |  |
Income tax related to Discontinued Operations | $ 0 | $ 0 | $ (42)
Discontinued Operations, Held-for-sale | WPD [Member] |  |  |
Disposal Group [Line Items] |  |  |
Income tax related to Discontinued Operations |  |  | $ 42

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