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Summary of Significant Accounting Policies (Business Acquisition) (Details) - Alfa Energy Ltd £ in Millions, $ in Millions | 1 Months Ended |  |
--- | --- | --- | ---
Oct. 31, 2022 USD ($) | Dec. 31, 2022 USD ($) | Oct. 31, 2022 GBP (£)
Business Acquisition [Line Items] |  |  |
Percentage of ownership acquired | 100.00% |  | 100.00%
Initial cash payment | $ 22 |  |
Goodwill |  | $ 16 |
Maximum additional consideration | $ 17 |  | £ 14
Contingent consideration payment term | 3 years |  |

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