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Derivative Instruments - Gross Notional Values (Details)
bbl in Millions, $ in Millions
Jun. 30, 2024
bbl
Sep. 30, 2024
USD ($)
Interest Rate Contract [Member] | U.S. dollar    
Derivative instruments, at their respective fair value positions    
Notional value of foreign currency exchange contracts   $ 300.0
Long | Commodity Contract [Member]    
Derivative instruments, at their respective fair value positions    
Notional value of commodity contracts (in barrels) | bbl 84.5  
Long | Foreign currency exchange contracts | U.S. dollar    
Derivative instruments, at their respective fair value positions    
Notional value of foreign currency exchange contracts   821.8
Short | Commodity Contract [Member]    
Derivative instruments, at their respective fair value positions    
Notional value of commodity contracts (in barrels) | bbl 87.2  
Short | Foreign currency exchange contracts | U.S. dollar    
Derivative instruments, at their respective fair value positions    
Notional value of foreign currency exchange contracts   $ 757.1