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Income Taxes (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Dec. 31, 2023 | Dec. 31, 2022
Income Tax Contingency [Line Items] |  |  |  |  |  |
Income tax (expense) benefit | $ (62) | $ (96) | $ (138) | $ (197) |  |
Capital contribution liability | $ 4 |  | $ 4 |  |  |
Effective income tax rate percent | 16.70% | 24.70% | 20.30% | 24.70% |  |
Valuation allowance | $ 86 |  | $ 86 |  |  | $ 113
Clean Energy Technologies |  |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |  |
Cost of equity method investment | $ 31 |  | $ 31 |  |  |
Forecast |  |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |  |
Effective income tax rate percent |  |  |  |  | 22.00% |

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