Goodwill and Other Intangible Assets - Goodwill Rollforward (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Goodwill [Line Items]
Gross goodwill at period start		$ 1,822	$ 1,824
Accumulated Impairment Losses		(933)	(926)
Goodwill	$ 889	889	898
Goodwill [Roll Forward]
Beginning balance	898
Other	(2)
Ending balance	889
Plumbing Products
Goodwill [Line Items]
Gross goodwill at period start		566	568
Accumulated Impairment Losses		(340)	(340)
Goodwill	228	226	228
Goodwill [Roll Forward]
Beginning balance	228
Pre-Tax Impairment Charges	0
Other	(2)
Ending balance	226
Decorative Architectural Products
Goodwill [Line Items]
Gross goodwill at period start		358	358
Accumulated Impairment Losses		(75)	(75)
Goodwill	283	283	283
Goodwill [Roll Forward]
Beginning balance	283
Pre-Tax Impairment Charges	0
Other	0
Ending balance	283
Cabinetry Products
Goodwill [Line Items]
Gross goodwill at period start		181	181
Accumulated Impairment Losses		0	0
Goodwill	181	181	181
Goodwill [Roll Forward]
Beginning balance	181
Pre-Tax Impairment Charges	0
Other	0
Ending balance	181
Windows and Other Specialty Products
Goodwill [Line Items]
Gross goodwill at period start		717	717
Accumulated Impairment Losses		(518)	(511)
Goodwill	199	$ 199	$ 206
Goodwill [Roll Forward]
Beginning balance	206
Pre-Tax Impairment Charges	(7)
Other	0
Ending balance	$ 199