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GOODWILL AND OTHER INTANGIBLE ASSETS - Schedule of Changes in Carrying Amount of Goodwill (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Jun. 30, 2024	Sep. 30, 2023	Dec. 31, 2025	Dec. 31, 2024	Sep. 30, 2024	Dec. 31, 2023
Goodwill [Line Items]
Gross Goodwill			$ 999	$ 973		$ 1,043
Accumulated Impairment Losses			(376)	(376)		(440)
Changes in the carrying amount of goodwill
Beginning balance			597	604
Acquisitions			0	6
Foreign Currency Translation			26	(12)
Ending balance			623	597
Sauna360
Changes in the carrying amount of goodwill
Acquisitions		$ 60
Plumbing Products
Goodwill [Line Items]
Gross Goodwill			694	667		677
Accumulated Impairment Losses			(301)	(301)		(301)
Changes in the carrying amount of goodwill
Beginning balance			367	377
Acquisitions			0	2
Foreign Currency Translation			26	(12)
Ending balance			393	367
Plumbing Products \| Sauna360
Changes in the carrying amount of goodwill
Acquisitions		$ 2
Decorative Architectural Products
Goodwill [Line Items]
Gross Goodwill			305	305		366
Accumulated Impairment Losses			(75)	(75)		$ (139)
Changes in the carrying amount of goodwill
Beginning balance			230	227
Acquisitions			0	4
Foreign Currency Translation			0	0
Ending balance			$ 230	$ 230
Decorative Architectural Products \| Sauna360
Changes in the carrying amount of goodwill
Acquisitions	$ 4
The LD Kichler Co \| Decorative Architectural Products
Goodwill [Line Items]
Gross Goodwill					$ 64
Accumulated Impairment Losses					$ 64