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Consolidated Statements of Comprehensive Income - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Statement of Comprehensive Income [Abstract] |  |  |
Net income | $ 497 | $ (10) | $ 395
Other comprehensive income (loss), net of tax |  |  |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax | (1) | (10) | (17)
Unrealized Gain on Securities | (3) | (1) | 0
Defined benefit pension and post retirement plans: |  |  |
Change benefit obligations | 3 | 0 | 3
Amortization of amounts included in net periodic benefit cost | 5 | 4 | 6
Other | (2) | 0 | 0
Other comprehensive income (loss), net of tax | 2 | (7) | (8)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest | 499 | (17) | 387
Net loss attributed to noncontrolling interest | 2 | 5 | 0
Comprehensive income | $ 501 | $ (12) | $ 387

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