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Comprehensive Income (Loss) | 12 Months Ended
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Dec. 31, 2019
Equity [Abstract] |
Accumulated Other Comprehensive Income (Loss) | Accumulated Other Comprehensive Income (Loss) Comprehensive income (loss) includes changes in fair value of our aircraft fuel derivatives which qualify for hedge accounting. A rollforward of the amounts included in accumulated other comprehensive income (loss), net of taxes for the years ended December 31, 2019, 2018, and 2017 is as follows (in millions):
|  | Aircraft Fuel Derivatives(1) |  | Total
Balance of accumulated income, at December 31, 2016 |  | $ | 13 |  |  | $ | 13 |
Reclassifications into earnings, net of tax benefit of $6 |  | (9 | ) |  | (9 | )
Change in fair value, net of tax benefit of $2 |  | (4 | ) |  | (4 | )
Balance of accumulated income, at December 31, 2017 |  | — |  |  | — |
Reclassifications into earnings, net of tax benefit of $0 |  | 1 |  |  | 1 |
Change in fair value, net of tax benefit of $2 |  | (4 | ) |  | (4 | )
Balance of accumulated (losses), at December 31, 2018 |  | (3 | ) |  | (3 | )
Reclassifications into earnings, net of tax (expense) of $(1) |  | 4 |  |  | 4 |
Change in fair value, net of tax benefit of $0 |  | 1 |  |  | 1 |
Balance of accumulated income, at December 31, 2019 |  | $ | 2 |  |  | $ | 2 |
(1) Reclassified to aircraft fuel expense.

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- Definition The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -URI http://asc.fasb.org/topic&trid=2134417 + Details
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