v3.24.0.1
Financial Derivative Instruments and Risk Management - Fuel Derivatives (Details) - Aircraft Fuel Derivatives - Fuel
$ in Millions
12 Months Ended
Dec. 31, 2023
USD ($)
MBoe
Dec. 31, 2022
USD ($)
MBoe
Derivative [Line Items]    
Asset fair value recorded in prepaid expenses and other current assets $ 4 $ 3
Longest remaining term (months) 3 months 3 months
Hedged volume (barrels, in thousands) | MBoe 2,706 450
Estimated amount of existing gains (losses) expected to be reclassified into earnings in the next 12 months $ (3) $ 2