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Contingent Liabilities and Other Matters - Large Power Projects in South Africa (Details) $ in Millions |  |  | 192 Months Ended
--- | --- | --- | ---
Sep. 05, 2023 project | Feb. 05, 2021 USD ($) | Dec. 31, 2023 project
Loss Contingencies [Line Items] |  |  |
Number of large power projects |  |  | 2
Large power projects |  |  |
Loss Contingencies [Line Items] |  |  |
Payment for bonds | $ |  | $ 6.7 |
South Africa | Large power projects |  |  |
Loss Contingencies [Line Items] |  |  |
Number of large power projects | 2 |  |

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