Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation of Revenue [Line Items]
Net sales	$ 2,204	$ 2,204	$ 6,757	$ 6,353
Plumbing Products
Disaggregation of Revenue [Line Items]
Net sales	1,324	1,329	4,056	3,907
Decorative Architectural Products
Disaggregation of Revenue [Line Items]
Net sales	880	875	2,701	2,446
North America
Disaggregation of Revenue [Line Items]
Net sales	1,792	1,753	5,431	4,999
North America | Plumbing Products
Disaggregation of Revenue [Line Items]
Net sales	912	878	2,730	2,553
North America | Decorative Architectural Products
Disaggregation of Revenue [Line Items]
Net sales	880	875	2,701	2,446
International, principally Europe
Disaggregation of Revenue [Line Items]
Net sales	412	451	1,326	1,354
International, principally Europe | Plumbing Products
Disaggregation of Revenue [Line Items]
Net sales	412	451	1,326	1,354
International, principally Europe | Decorative Architectural Products
Disaggregation of Revenue [Line Items]
Net sales	$ 0	$ 0	$ 0	$ 0