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Related Party Transactions (Schedule of related Party Transactions) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Nonrecourse Debt Type [Domain] | Mong Duong Finance Holdings B.V._Related Party [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Related Party Transaction, Due from (to) Related Party | $ 1,000 |  |
Affiliated Entity |  |  |
Related Party Transaction [Line Items] |  |  |
Interest Income | 10 | $ 12 | $ 20
Interest expense | 95 | 88 | 131
Electricity, Generation [Member] | Affiliated Entity |  |  |
Related Party Transaction [Line Items] |  |  |
Revenue—Non-Regulated | 1,093 | 1,159 | 1,506
Cost of Sales—Non-Regulated | $ 352 | $ 324 | $ 504

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