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New Accounting Pronouncements (Details) - USD ($)
$ in Millions
3 Months Ended
Jan. 01, 2018
Mar. 31, 2018
Mar. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Other pension and postretirement costs   $ 3 $ 9
Non-cash expense, pension and postretirement     6
Proceeds from deferred purchase price of factored receivables   34 $ 22
ASU 2016-16      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Cumulative effect on retained earnings   2  
ASU 2014-09      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Cumulative effect on retained earnings $ 1 $ 1