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Changes in Accumulated Other Comprehensive (Loss) Income | 12 Months Ended
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Dec. 31, 2023
Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Changes in Accumulated Other Comprehensive (Loss) Income | Note 15. Changes in Accumulated Other Comprehensive (Loss) Income The following table presents the changes in accumulated other comprehensive loss by component for the years ended December 31, 2023, 2022 and 2021 (in millions):
|  | Changes related to cash flow derivative hedges |  | Changes in defined benefit plans |  | Foreign currency translation adjustments |  | Accumulated other comprehensive (loss) income
Accumulated comprehensive loss at January 1, 2021 |  | $ | (651) |  |  | $ | (66) |  |  | $ | (23) |  |  | $ | (740) |
Other comprehensive (loss) income before reclassifications |  | (17) |  |  | 5 |  |  | 16 |  |  | 4 |
Amounts reclassified from accumulated other comprehensive loss |  | 21 |  |  | 4 |  |  | — |  |  | 25 |
Net current-period other comprehensive income |  | 4 |  |  | 9 |  |  | 16 |  |  | 29 |
Accumulated comprehensive loss at January 1, 2022 |  | (647) |  |  | (57) |  |  | (7) |  |  | (711) |
Other comprehensive income before reclassifications |  | 171 |  |  | 46 |  |  | 10 |  |  | 227 |
Amounts reclassified from accumulated other comprehensive loss |  | (163) |  |  | 3 |  |  | — |  |  | (160) |
Net current-period other comprehensive income |  | 8 |  |  | 49 |  |  | 10 |  |  | 67 |
Accumulated comprehensive loss at January 1, 2023 |  | (639) |  |  | (8) |  |  | 3 |  |  | (644) |
Other comprehensive income (loss) before reclassifications |  | 3 |  |  | 6 |  |  | (9) |  |  | — |
Amounts reclassified from accumulated other comprehensive loss |  | (30) |  |  | — |  |  | — |  |  | (30) |
Net current-period other comprehensive (loss) income |  | (27) |  |  | 6 |  |  | (9) |  |  | (30) |
Accumulated comprehensive loss at December 31, 2023 |  | $ | (666) |  |  | $ | (2) |  |  | $ | (6) |  |  | $ | (674) |
The following table presents reclassifications out of accumulated other comprehensive loss for the years ended December 31, 2023, 2022 and 2021 (in millions):
|  | Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Loss into (Loss) Income
Details about Accumulated Other Comprehensive Loss Components |  | Year Ended December 31, 2023 |  | Year Ended December 31, 2022 |  | Year Ended December 31, 2021 |  | Affected Line Item in Statements of Comprehensive Income (Loss)
Gain (loss) on cash flow derivative hedges: |  |  |  |  |  |  |  |
Interest rate swaps |  | $ | 49 |  |  | $ | (12) |  |  | $ | (44) |  |  | Interest expense, net of interest capitalized
Foreign currency forward contracts |  | (18) |  |  | (17) |  |  | (15) |  |  | Depreciation and amortization expenses
Foreign currency forward contracts |  | (10) |  |  | (3) |  |  | (3) |  |  | Other (expense) income
Fuel swaps |  | — |  |  | — |  |  | — |  |  | Other (expense) income
Fuel swaps |  | 9 |  |  | 195 |  |  | 41 |  |  | Fuel
|  | 30 |  |  | 163 |  |  | (21) |  |  |
Amortization of defined benefit plans: |  |  |  |  |  |  |  |
Actuarial loss |  | — |  |  | (3) |  |  | (4) |  |  | Payroll and related
Total reclassifications for the period |  | $ | 30 |  |  | $ | 160 |  |  | $ | (25) |  |  |

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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://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483586/944-220-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(21)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483589/942-220-S99-1 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//220/tableOfContent + Details
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