Percentage of actual consumption economically hedged.

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- Definition

Amount of right to receive cash collateral under master netting arrangements that have not been offset against derivative liabilities.

+ References

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- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

The amount of loss reclassified into earnings in the period when cash flow hedge is discontinued because it is probable that the original forecasted transactions will not occur by the end of the original period or an additional two month time period.

+ References

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- Definition

Amount, before tax and after reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness.

+ References

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Financial Derivative Instruments and Risk Management - Hedging Effectiveness (Details) - Fuel Derivatives - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Percentage of actual consumption economically hedged	0.00%	32.00%	0.00%	24.00%
Derivative, collateral, right to reclaim cash	$ 0		$ 0		$ 0
Aircraft Fuel Expense
Derivative Instruments, Gain (Loss) [Line Items]
Hedge effectiveness losses recognized in aircraft fuel expense	0	$ 1,000,000	0	$ 3,000,000
Interest Income
Derivative Instruments, Gain (Loss) [Line Items]
Losses on derivatives resulting from the discontinuance of hedge accounting recognized in interest income and other	0	3,000,000	0	5,000,000
Comprehensive Income
Derivative Instruments, Gain (Loss) [Line Items]
Hedge losses on derivatives recognized in comprehensive income	$ 0	$ 0	$ 0	$ 11,000,000