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GOODWILL AND OTHER INTANGIBLE ASSETS - Goodwill, Net (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Goodwill
Gross Goodwill	$ 978	$ 924	$ 926
Accumulated Impairment Losses	(415)	(415)	(415)
Net Goodwill	563	509	511
Acquisitions	41	0
Plumbing Products
Goodwill
Gross Goodwill	613	566	568
Accumulated Impairment Losses	(340)	(340)	(340)
Net Goodwill	273	226	228
Acquisitions	34	0
Decorative Architectural Products
Goodwill
Gross Goodwill	365	358	358
Accumulated Impairment Losses	(75)	(75)	(75)
Net Goodwill	290	283	$ 283
Acquisitions	$ 7	$ 0

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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