Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Disaggregation of Revenue [Line Items]
Net sales	$ 2,297	$ 2,066	$ 4,217	$ 3,844
Performance obligation satisfied in previous period	6	8	3	7
Contract with customer, asset, gross, current	14		14		$ 11
Contract with customer, liability	13		13		$ 32
Plumbing Products
Disaggregation of Revenue [Line Items]
Net sales	1,032	949	2,003	1,821
Decorative Architectural Products
Disaggregation of Revenue [Line Items]
Net sales	806	661	1,351	1,157
Cabinetry Products
Disaggregation of Revenue [Line Items]
Net sales	268	251	485	482
Windows and Other Specialty Products
Disaggregation of Revenue [Line Items]
Net sales	191	205	378	384
North America
Disaggregation of Revenue [Line Items]
Net sales	1,872	1,668	3,388	3,080
North America | Plumbing Products
Disaggregation of Revenue [Line Items]
Net sales	647	605	1,252	1,162
North America | Decorative Architectural Products
Disaggregation of Revenue [Line Items]
Net sales	806	661	1,351	1,157
North America | Cabinetry Products
Disaggregation of Revenue [Line Items]
Net sales	268	238	485	457
North America | Windows and Other Specialty Products
Disaggregation of Revenue [Line Items]
Net sales	151	164	300	304
International, principally Europe
Disaggregation of Revenue [Line Items]
Net sales	425	398	829	764
International, principally Europe | Plumbing Products
Disaggregation of Revenue [Line Items]
Net sales	385	344	751	659
International, principally Europe | Decorative Architectural Products
Disaggregation of Revenue [Line Items]
Net sales	0	0	0	0
International, principally Europe | Cabinetry Products
Disaggregation of Revenue [Line Items]
Net sales	0	13	0	25
International, principally Europe | Windows and Other Specialty Products
Disaggregation of Revenue [Line Items]
Net sales	$ 40	$ 41	$ 78	$ 80