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Derivative Instruments and Hedging Activities - Amounts Included in OCI, Income and AOCI (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Derivative Instruments, Gain (Loss) [Line Items]    
Gain (loss) reclassified from OCI into income (effective portion) $ (3.2) $ 45.2
Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration] Total revenues Total revenues
Commodity Contracts [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Gain (loss) recognized in OCI on derivatives (effective portion) $ 3.2 $ (45.2)
Commodity Contracts [Member] | Revenues [Member] | Not Designated as Hedging Instrument [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Gain (loss) recognized in income on derivatives (31.9) 178.0
Cash Flow Hedging [Member] | Commodity Contracts [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Gain (loss) recognized in OCI on derivatives (effective portion) $ (70.3) $ 83.9