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Restructuring and Acquisition Related Expenses - Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Acquisition Related Expenses [Abstract]      
Business Combination, Acquisition Related Costs $ 18 $ 15 $ 22
Acquisition And Restructuring Integration Plans [Abstract]      
Restructuring Costs 14 5 16
Specialty      
Acquisition And Restructuring Integration Plans [Abstract]      
Restructuring Costs 3   10
Stahlgruber [Member]      
Acquisition Related Expenses [Abstract]      
Business Combination, Acquisition Related Costs 16 4  
Andrew Page      
Acquisition Related Expenses [Abstract]      
Business Combination, Acquisition Related Costs   $ 5  
Acquisition And Restructuring Integration Plans [Abstract]      
Restructuring Costs 10    
Rhiag      
Acquisition Related Expenses [Abstract]      
Business Combination, Acquisition Related Costs     11
PGW      
Acquisition Related Expenses [Abstract]      
Business Combination, Acquisition Related Costs     4
All 2016 Acquisitions Excluding Rhiag and PGW [Member]      
Acquisition Related Expenses [Abstract]      
Business Combination, Acquisition Related Costs     7
Europe      
Acquisition And Restructuring Integration Plans [Abstract]      
Restructuring Costs     2
Maximum      
Acquisition And Restructuring Integration Plans [Abstract]      
Expected future restructuring expenses $ (15)    
North America      
Acquisition And Restructuring Integration Plans [Abstract]      
Restructuring Costs     $ 3