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Variable Interest Entities - Net Assets (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Business Acquisition [Line Items] |  |
Noncontrolling interest | $ 202 | $ 299
Great Valley Solar |  |
Business Acquisition [Line Items] |  |
Assets held for sale | 305 | 0
Non-utility property, less accumulated depreciation | 0 | 275
Other assets | 0 | 37
Total assets | 305 | 312
Liabilities held for sale | 20 | 0
Other liabilities | 0 | 14
Total liabilities | 20 | 14
Accumulated depreciation | 35 | 26
Copper Mountain Solar - Mesquite Solar |  |
Business Acquisition [Line Items] |  |
Assets held for sale | 580 | 0
Non-utility property, less accumulated depreciation | 0 | 431
Other assets | 0 | 167
Total assets | 580 | 598
Liabilities held for sale | 81 | 0
Other liabilities | 0 | 74
Total liabilities | 81 | 74
Accumulated depreciation | 59 | 44
CED Nevada Virginia |  |
Business Acquisition [Line Items] |  |
Assets held for sale | 686 | 0
Non-utility property, less accumulated depreciation | 0 | 643
Other assets | 0 | 55
Total assets | 686 | 698
Liabilities held for sale | 331 | 0
Other liabilities | 0 | 315
Total liabilities | 331 | 315
Accumulated depreciation | 29 | 10
Tax equity investor |  |
Business Acquisition [Line Items] |  |
Noncontrolling interest | 39 | 95
Tax equity investor | Great Valley Solar |  |
Business Acquisition [Line Items] |  |
Noncontrolling interest | 67 | 84
Tax equity investor | Copper Mountain Solar - Mesquite Solar |  |
Business Acquisition [Line Items] |  |
Noncontrolling interest | $ 94 | $ 118

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