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Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Statement of Comprehensive Income [Abstract]        
Net income $ 13 $ 49 $ 7 $ 67
Other comprehensive income:        
Foreign currency translation adjustments 7 1 17 7
Defined benefit plans:        
Defined benefit plan adjustment, before tax 1 2 3 4
Defined benefit plan adjustment, tax portion 0 0 0 (1)
Defined benefit plan adjustment, net of tax 1 2 3 3
Other comprehensive income 8 3 20 10
Comprehensive income $ 21 $ 52 $ 27 $ 77