Goodwill and Other Intangible Assets - Goodwill Rollforward (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2018	Mar. 09, 2018	Dec. 31, 2017
Goodwill [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill)		$ 199		$ 140
Goodwill, gross at period start	$ 1,767
Accumulated Impairment Losses		(926)		(926)
Goodwill, gross at period end	1,816
Goodwill [Roll Forward]
Beginning balance	841
Additions	55
Other	(6)
Ending balance	841	890		841
Finite-Lived Intangible Assets, Net		218		47
Plumbing Products
Goodwill [Line Items]
Goodwill, gross at period start	574
Accumulated Impairment Losses		(340)		(340)
Goodwill, gross at period end	569
Goodwill [Roll Forward]
Beginning balance	234
Additions	0
Other	(5)
Ending balance	234	229		234
Decorative Architectural Products
Goodwill [Line Items]
Goodwill, gross at period start	294
Accumulated Impairment Losses		(75)		(75)
Goodwill, gross at period end	349
Goodwill [Roll Forward]
Beginning balance	219
Other	0
Ending balance	219	274		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
The LD Kichler Co | Decorative Architectural Products
Goodwill [Roll Forward]
Additions	$ 55
Ending balance			$ 55