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Derivatives and Risk Management - Summary of Foreign Currency Exchange Derivatives (Details)
$ in Millions, $ in Millions
Mar. 31, 2025
USD ($)
DerivativeContracts
Mar. 31, 2025
CAD ($)
DerivativeContracts
Dec. 31, 2024
USD ($)
DerivativeContracts
Dec. 31, 2024
CAD ($)
DerivativeContracts
Foreign Currency Fair Value Hedge Derivative [Line Items]        
Number of contracts | DerivativeContracts 20 20 22 22
United States of America, Dollars [Member] | Foreign Exchange Contract [Member]        
Foreign Currency Fair Value Hedge Derivative [Line Items]        
Notional amount $ 3   $ 2  
Canada, Dollars [Member] | Foreign Exchange Contract [Member]        
Foreign Currency Fair Value Hedge Derivative [Line Items]        
Notional amount   $ 4   $ 2