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Commodity Derivatives - Contingent Features (Details) - USD ($)
$ in Millions
Sep. 30, 2024
Dec. 31, 2023
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Additional Collateral, Aggregate Fair Value $ 4  
Level 1 [Member]    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Collateral Already Posted, Aggregate Fair Value $ 76 $ 2