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v3.21.2

Comprehensive Income (Loss) - Reclassifications (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Reclassification Out of Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Fuel and oil | $ 990 | $ 379 | $ 2,261 | $ 1,507
Other (gains) losses, net | 29 | 35 | (32) | 95
Less: Tax expense | 154 | (385) | 339 | (759)
Other operating expenses | 662 | 488 | 1,710 | 1,405
Interest expense | 115 | 111 | 343 | 235
Net income (loss) | 446 | $ (1,157) | 909 | $ (2,166)
Reclassification to earnings |  |  |  |
Reclassification Out of Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Net income (loss) | 2 |  | (16) |
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 derivative contracts | Fuel and Interest Rate Derivatives | Reclassification to earnings |  |  |  |
Reclassification Out of Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Fuel and oil | 2 |  | 30 |
Other (gains) losses, net |  |  | 6 |
Less: Tax expense | 1 |  | 8 |
Net income (loss) | 1 |  | 28 |
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 |  | 1 |
Other operating expenses | 1 |  |  |
Interest expense |  |  | 4 |
Net income (loss) | $ 1 |  | $ 3 |

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