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Commitments and Contingencies (Details)
$ in Millions
3 Months Ended 12 Months Ended
Jun. 30, 2017
USD ($)
claim
Dec. 31, 2016
USD ($)
claim
Dec. 31, 2015
USD ($)
Jun. 30, 2016
claim
Commitments and Contingencies Disclosure [Abstract]        
Outstanding letters of credit and surety bonds | $ $ 101      
Loss Contingencies [Line Items]        
Costs for (recoveries from) settlement and defense of asbestos claims, net of insurance recoveries and taxes | $   $ 48 $ (5)  
Asbestos Claims [Member]        
Loss Contingencies [Line Items]        
Number of pending asbestos claims 33,240 33,610   34,790
Number of new asbestos claims 1,030      
Number of asbestos claims closed or moved to inactive docket 1,390