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Goodwill and Other Intangible Assets - Goodwill Rollforward (Details) - USD ($)
$ in Millions
 9 Months Ended
Sep. 30, 2018
Sep. 30, 2018
Dec. 31, 2017
Goodwill [Line Items]      
Goodwill, gross at period start $ 1,767    
Accumulated Impairment Losses   $ (926) $ (926)
Goodwill, gross at period end 1,822    
Goodwill [Roll Forward]      
Beginning balance 841    
Additions 59    
Other (4)    
Ending balance 841 896 841
Plumbing Products      
Goodwill [Line Items]      
Goodwill, gross at period start 574    
Accumulated Impairment Losses   (340) (340)
Goodwill, gross at period end 571    
Goodwill [Roll Forward]      
Beginning balance 234    
Additions 0    
Other (3)    
Ending balance 234 231 234
Decorative Architectural Products      
Goodwill [Line Items]      
Goodwill, gross at period start 294    
Accumulated Impairment Losses   (75) (75)
Goodwill, gross at period end 353    
Goodwill [Roll Forward]      
Beginning balance 219    
Additions 59    
Other 0    
Ending balance 219 278 219
Cabinetry Products      
Goodwill [Line Items]      
Goodwill, gross at period start 181    
Accumulated Impairment Losses   0 0
Goodwill, gross at period end 181    
Goodwill [Roll Forward]      
Beginning balance 181    
Additions 0    
Other 0    
Ending balance 181 181 181
Windows and Other Specialty Products      
Goodwill [Line Items]      
Goodwill, gross at period start 718    
Accumulated Impairment Losses   (511) (511)
Goodwill, gross at period end 717    
Goodwill [Roll Forward]      
Beginning balance 207    
Additions 0    
Other (1)    
Ending balance $ 207 $ 206 $ 207