(Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Mar. 09, 2018	Dec. 31, 2016
Acquisitions
Increase in other indefinite-lived intangible assets		$ 59	$ 5
Increase in definite-lived intangible assets		181	26
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Goodwill	$ 841	898	841		$ 832
Decorative Architectural Products
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Goodwill	219	283	219		219
Decorative Architectural Products | The LD Kichler Co [Member]
Acquisitions
Revenue of acquiree since acquisition date		346
Increase in other indefinite-lived intangible assets		59
Increase in definite-lived intangible assets		181
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Cash and equivalents				$ 2
Receivables		100		101
Inventories		166		173
Prepaid expenses and other		5		5
Property and equipment		33		33
Goodwill		64		46
Other intangible assets		240		243
Accounts payable		(24)		(24)
Accrued liabilities		(30)		(25)
Other liabilities		(5)		(4)
Total		549		$ 548
Plumbing Products
Acquisitions
Cash consideration	89
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]
Goodwill	$ 234	228	$ 234		$ 179
Customer Relationships | Decorative Architectural Products | The LD Kichler Co [Member]
Acquisitions
Increase in definite-lived intangible assets		$ 145
Weighted average useful life		20 years
Other Intangible Assets | Decorative Architectural Products | The LD Kichler Co [Member]
Acquisitions
Increase in definite-lived intangible assets		$ 36
Weighted average useful life		3 years