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Property, Plant and Equipment (Regulated and Non-Regulated Generation and Distribution PP&E) (Details) - USD ($) | Dec. 31, 2024 | Sep. 30, 2024 | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | --- | --- | ---
Property, Plant and Equipment [Line Items] |  |  |  |
Electric generation, distribution assets and other | $ 32,823,000,000 |  |  | $ 30,190,000,000
Accumulated depreciation | (8,701,000,000) | $ (8,505) | $ (8,270) | (8,602,000,000)
Net electric generation and distribution assets and other | 24,122,000,000 |  |  | 21,588,000,000
Regulated Operation [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Electric generation, distribution assets and other | 10,869,000,000 |  |  | 9,995,000,000
Accumulated depreciation | (3,997,000,000) |  |  | (3,825,000,000)
Net electric generation and distribution assets and other | 6,872,000,000 |  |  | 6,170,000,000
Unregulated Operation [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Electric generation, distribution assets and other | 21,954,000,000 |  |  | 20,195,000,000
Accumulated depreciation | (4,704,000,000) |  |  | (4,777,000,000)
Net electric generation and distribution assets and other | $ 17,250,000,000 |  |  | $ 15,418,000,000

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