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v3.21.2

Comprehensive Income (Loss) - Reclassifications (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Reclassification Out of Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Fuel and oil | $ 803 | $ 257 | $ 1,272 | $ 1,128
Other (gains) losses, net | (14) | 32 | (61) | 60
Less: Tax expense | 154 | (324) | 185 | (374)
Other operating expenses | 586 | 220 | 1,049 | 917
Interest expense | 116 | 96 | 229 | 124
Net income (loss) | 348 | $ (915) | 463 | $ (1,009)
Reclassification to earnings |  |  |  |
Reclassification Out of Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Net income (loss) | 10 |  | (19) |
Defined benefit plan items | Reclassification to earnings |  |  |  |
Reclassification Out of Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Other (gains) losses, net |  |  | (60) |
Less: Tax expense |  |  | (13) |
Net income (loss) |  |  | (47) |
Fuel derivatives | Fuel and Interest Rate Derivatives | Reclassification to earnings |  |  |  |
Reclassification Out of Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Fuel and oil | 12 |  | 28 |
Other (gains) losses, net |  |  | 6 |
Less: Tax expense | 3 |  | 8 |
Net income (loss) | 9 |  | 26 |
Interest rate derivatives | Fuel and Interest Rate Derivatives | Reclassification to earnings |  |  |  |
Reclassification Out of Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Less: Tax expense | 0 |  | 0 |
Other operating expenses | 1 |  |  |
Interest expense |  |  | 2 |
Net income (loss) | $ 1 |  | $ 2 |

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