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Financial Derivative Instruments - Premiums for Fuel Derivative Contracts (Details) - Fuel derivative contracts - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Designated as Hedging Instrument | Fuel and oil |  |  |  |
Derivative [Line Items] |  |  |  |
Premium (benefit) expense recognized in income on derivatives | $ 26 | $ 14 | $ 79 | $ 43
Not Designated as Hedging Instrument | Other (gains)/losses, net |  |  |  |
Derivative [Line Items] |  |  |  |
Fuel derivative contracts not designated as hedges | $ (14) | $ 11 | $ (14) | $ 32

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- Definition The premium (cost) of a hedge, expensed during the period. + References No definition available. + Details
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- Details
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