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Consolidated Statements of Comprehensive Income (Loss) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Statement of Comprehensive Income [Abstract]      
Net income (loss) $ 129 $ (20) $ 30
Other comprehensive loss:      
Foreign currency translation adjustments 7 (10) (13)
Derivatives:      
Unrealized loss on derivatives, before tax (8) (12) (7)
Unrealized loss on derivatives, tax portion 2 3 1
Unrealized loss on derivatives, net of tax (6) (9) (6)
Defined benefit plans:      
Reclassification of loss to net income (loss) 9 6 5
Defined benefit plan adjustment, before tax (15) (37) (14)
Defined benefit plan adjustment, tax portion 3 10 1
Defined benefit plan adjustment, net of tax (3) (21) (8)
Other comprehensive loss (2) (40) (27)
Comprehensive income (loss) $ 127 $ (60) $ 3