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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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Amount of cash outflow for cost from early extinguishment and prepayment of debt. Includes, but is not limited to, third-party cost, premium paid, and other fee paid to lender directly for debt extinguishment or debt prepayment. Excludes accrued interest.

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