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Consolidated Statements of Operations and Comprehensive Income (Parenthetical) $ in Millions | 12 Months Ended
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Dec. 31, 2019 USD ($)
Income Statement And Statement Of Comprehensive Income [Abstract] |
Foreign currency translation adjustment, tax | $ 1
Pension and post-retirement benefits, tax | 11
Change in fair value of derivatives, tax | 2
Change in fair value of derivatives, before 2017-12 adoption, tax | $ 2

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