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Segment Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Segment Information
Net sales	$ 2,204	$ 1,983	$ 6,353	$ 5,328
Operating Profit	385	424	1,187	988
Other income (expense), net	(43)	(44)	(691)	(132)
Income from continuing operations before income taxes	342	380	496	856
North America
Segment Information
Net sales	1,753	1,599	4,999	4,337
International, principally Europe
Segment Information
Net sales	451	384	1,354	991
Plumbing Products (A)
Segment Information
Net sales	1,329	1,141	3,907	2,964
Plumbing Products (A) | North America
Segment Information
Net sales	878	757	2,553	1,973
Plumbing Products (A) | International, principally Europe
Segment Information
Net sales	451	384	1,354	991
Decorative Architectural Products
Segment Information
Net sales	875	842	2,446	2,364
Decorative Architectural Products | North America
Segment Information
Net sales	875	842	2,446	2,364
Decorative Architectural Products | International, principally Europe
Segment Information
Net sales	0	0	0	0
Operating Segments
Segment Information
Net sales	2,204	1,983	6,353	5,328
Operating Profit	414	450	1,269	1,058
Operating Segments | Plumbing Products (A)
Segment Information
Net sales	1,329	1,141	3,907	2,964
Operating Profit	248	271	773	583
Operating Segments | Decorative Architectural Products
Segment Information
Net sales	875	842	2,446	2,364
Operating Profit	166	179	496	475
Geographic Areas
Segment Information
Net sales	2,204	1,983	6,353	5,328
Operating Profit	414	450	1,269	1,058
Geographic Areas | North America
Segment Information
Net sales	1,753	1,599	4,999	4,337
Operating Profit	332	368	1,010	899
Geographic Areas | International, principally Europe
Segment Information
Net sales	451	384	1,354	991
Operating Profit	82	82	259	159
Corporate, Non-Segment
Segment Information
General corporate expense, net	$ (29)	$ (26)	$ (82)	$ (70)

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