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Financial Derivative Instruments - Fuel Hedging (Details)
gal in Millions
9 Months Ended
Sep. 30, 2024
gal
Remainder of 2024  
Volume of Fuel Hedging  
Fuel Hedged (in gallons) 316
2025  
Volume of Fuel Hedging  
Fuel Hedged (in gallons) 1,033
2026  
Volume of Fuel Hedging  
Fuel Hedged (in gallons) 945
2027  
Volume of Fuel Hedging  
Fuel Hedged (in gallons) 101