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Assets and Liabilities Held for Sale (Details) - USD ($)
$ in Millions
3 Months Ended
Jun. 30, 2017
Dec. 31, 2016
Assets And Liabilities Held-For-Sale [Abstract]    
Impairment charge for assets held for sale   $ 3
Increase of fair value write-up $ 1  
Aftermarket & Trailer    
Long Lived Assets Held-for-sale [Line Items]    
Addition in assets meeting held for sale criteria $ 2