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Accumulated Other Comprehensive Income (Loss) (Tables) | 12 Months Ended
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Dec. 31, 2022
Equity [Abstract] |
Accumulated other comprehensive income (loss), net of taxes | Comprehensive income (loss) includes changes in fair value of our aircraft fuel derivatives which qualify for hedge accounting. Unrealized loss on available-for-sale investment securities are reflected as a component of accumulated other comprehensive income (loss). A rollforward of the amounts included in accumulated other comprehensive income (loss), net of taxes for the years ended December 31, 2022, 2021, and 2020 is as follows (in millions):
| Aircraft Fuel Derivatives(1) | Available-for-sale securities | Total
Balance of accumulated income, at December 31, 2019 | $ | 2 |  | $ | — |  | $ | 2 |
Reclassifications into earnings, net of taxes of $(5) | 9 |  | — |  | 9 |
Change in fair value, net of taxes of $5 | (11) |  | — |  | (11) |
Balance of accumulated income, at December 31, 2020 | $ | — |  | $ | — |  | $ | — |
Reclassifications into earnings, net of taxes of $0 | — |  | — |  | — |
Change in fair value, net of taxes of $0 | — |  | — |  | — |
Balance of accumulated income, at December 31, 2021 | $ | — |  | $ | — |  | $ | — |
Reclassifications into earnings, net of taxes of $(3) | 4 |  | — |  | 4 |
Change in fair value, net of taxes of $2 | (3) |  | (1) |  | (4) |
Balance of accumulated income (loss), at December 31, 2022 | $ | 1 |  | $ | (1) |  | $ | — |
(1)Reclassified to aircraft fuel expense.

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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 https://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 https://asc.fasb.org/extlink&oid=126968391&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 https://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900 + Details
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