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CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS |  |  |
Net loss | $ (1,257) | $ (2,003) | $ (3,097)
Net income (loss) attributable to noncontrolling interest | (2) | (7) | 30
Net loss attributable to controlling interest | (1,255) | (1,996) | (3,127)
Components of net periodic benefit costs before reclassifications | (25) | 6 |
Components of net periodic benefit costs reclassified to net loss | 4 | 5 | 21
Other comprehensive income (loss) before income taxes | (21) | 11 | 21
Income taxes related to other comprehensive income |  |  | (28)
Other comprehensive income (loss) | (21) | 11 | (7)
Other comprehensive income (loss) attributable to controlling interest | (21) | 11 | (7)
Total comprehensive loss | (1,278) | (1,992) | (3,104)
Total comprehensive income (loss) attributable to noncontrolling interest | (2) | (7) | 30
Total comprehensive loss attributable to controlling interest | $ (1,276) | $ (1,985) | $ (3,134)

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