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GOODWILL AND OTHER INTANGIBLE ASSETS - Schedule of Goodwill (Details) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Goodwill [Line Items]
Gross Goodwill	$ 997	$ 973
Accumulated Impairment Losses	(376)	(376)
Net Goodwill	622	597
Plumbing Products
Goodwill [Line Items]
Gross Goodwill	691	667
Accumulated Impairment Losses	(301)	(301)
Net Goodwill	391	367
Decorative Architectural Products
Goodwill [Line Items]
Gross Goodwill	305	305
Accumulated Impairment Losses	(75)	(75)
Net Goodwill	$ 230	$ 230

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