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ACQUISITIONS (Details) € in Millions, $ in Millions					3 Months Ended		12 Months Ended
	Dec. 29, 2020 USD ($)	Nov. 10, 2020 USD ($)	Nov. 10, 2020 EUR (€)	Mar. 09, 2018 USD ($)	Dec. 31, 2020 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Acquisitions
Increase in definite-lived intangible assets							$ 86
Goodwill							41	$ 0
Increase in other indefinite-lived intangible assets							32
Payments to acquire businesses, net of cash acquired							227	0	$ 549
SmarTap
Acquisitions
Cash consideration						$ 24
Increase in definite-lived intangible assets						$ 10
Weighted average useful life						5 years
Goodwill							14
Kraus USA Inc.
Acquisitions
Cash consideration					$ 103
Increase in definite-lived intangible assets					$ 49
Weighted average useful life					10 years
Goodwill					$ 20
Contingent cash payment					50
Contingent consideration, undiscounted amount, minimum					0		0
Contingent consideration, undiscounted amount, maximum					50		50
Contingent consideration, liability					8		8
Work Tools International Inc. and Elder & Jenks LLC
Acquisitions
Cash consideration					48
Increase in definite-lived intangible assets					$ 27
Weighted average useful life					12 years
Goodwill					$ 7
Increase in other indefinite-lived intangible assets					7
Payments to acquire businesses, net of cash acquired					53
Liabilities incurred					$ 5
Liabilities incurred, payment period					18 months
ESS
Acquisitions
Cash consideration	$ 52
Equity interest acquired		75.10%	75.10%
Consideration transferred		$ 55	€ 45
Plumbing Products
Acquisitions
Goodwill							34	0
Plumbing Products | Kraus USA Inc.
Acquisitions
Increase in other indefinite-lived intangible assets					$ 25
Decorative Architectural Products
Acquisitions
Goodwill							$ 7	$ 0
Decorative Architectural Products | The LD Kichler Co
Acquisitions
Increase in definite-lived intangible assets				$ 181
Increase in other indefinite-lived intangible assets				59
Cash and equivalents				2
Total consideration				548					$ 549
Customer Relationships | Decorative Architectural Products | The LD Kichler Co
Acquisitions
Increase in definite-lived intangible assets				$ 145
Weighted average useful life				20 years
Other Intangible Assets | Decorative Architectural Products | The LD Kichler Co
Acquisitions
Increase in definite-lived intangible assets				$ 36
Weighted average useful life				3 years

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