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Consolidated Statement of Comprehensive Income (Loss) (Unaudited) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Statement Of Income And Comprehensive Income [Abstract]        
NET INCOME (LOSS) $ 8 $ (445) $ 30 $ (561)
Other comprehensive income (loss), net of tax:        
Currency translation adjustments   (1) 3 (17)
Pension and other postretirement benefit plan obligation activity, net of tax 7 3 21 15
Other comprehensive income (loss), net of tax 7 2 24 (2)
COMPREHENSIVE INCOME (LOSS), NET OF TAX $ 15 $ (443) $ 54 $ (563)