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v3.23.2

Comprehensive Income (Loss) - Schedule of AOCI Components (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2023
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Balance at beginning of period | $ 10,302 | $ 10,687
Changes in fair value | (125) | (252)
Reclassification to earnings | (14) | (34)
Balance at end of period | 10,789 | 10,789
Accumulated other comprehensive income (loss) |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Balance at beginning of period | 197 | 344
Balance at end of period | 58 | 58
Fuel and Interest Rate Derivatives | Fuel derivative contracts |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Balance at beginning of period | 114 | 305
Changes in fair value | (165) | (328)
Reclassification to earnings | (14) | (42)
Balance at end of period | (65) | (65)
Fuel and Interest Rate Derivatives | Interest rate derivatives |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Balance at beginning of period | (32) | (32)
Changes in fair value | 1 | 0
Reclassification to earnings | 2 | 3
Balance at end of period | (29) | (29)
Defined benefit plan items |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Balance at beginning of period | 170 | 170
Balance at end of period | 170 | 170
Deferred tax impact |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Balance at beginning of period | (55) | (99)
Changes in fair value | 39 | 76
Reclassification to earnings | (2) | 5
Balance at end of period | $ (18) | $ (18)

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