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Accumulated Other Comprehensive Income (Loss) (Tables) | 3 Months Ended
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Mar. 31, 2021
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Accumulated other comprehensive income (loss), net of tax | A rollforward of the amounts included in accumulated other comprehensive income (loss), net of taxes for the three months ended March 31, 2021 and 2020 is as follows (in millions):
| Aircraft Fuel Derivatives(1)(2) |  | Total
Balance of accumulated income, at December 31, 2020 | $ | — |  |  | $ | — |
Reclassifications into earnings, net of deferred taxes of $0 | — |  |  | — |
Change in fair value, net of deferred taxes of $0 | — |  |  | — |
Balance of accumulated income, at March 31, 2021 | $ | — |  |  | $ | — |
Balance of accumulated income, at December 31, 2019 | $ | 2 |  |  | $ | 2 |
Reclassifications into earnings, net of deferred taxes $(1) | 3 |  |  | 3 |
Change in fair value, net of deferred taxes of $4 | (11) |  |  | (11) |
Balance of accumulated (loss), at March 31, 2020 | $ | (6) |  |  | $ | (6) |
(1) Reclassified to aircraft fuel expense. (2) In 2020, we made several capacity reductions in response to the COVID-19 pandemic. These capacity reductions led to the discontinuance of hedge accounting on a number of our aircraft fuel derivatives as the forecasted consumption of aircraft fuel was no longer probable. Losses of $2 million that were previously deferred in other comprehensive loss were reclassified to interest income and other during the three months ended March 31, 2020.

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669686-108580 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900 + Details
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