Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue [Line Items]
Net sales	$ 2,352	$ 2,179	$ 4,553	$ 4,149
Plumbing Products
Disaggregation of Revenue [Line Items]
Net sales	1,373	1,329	2,732	2,578
Decorative Architectural Products
Disaggregation of Revenue [Line Items]
Net sales	979	850	1,821	1,571
North America
Disaggregation of Revenue [Line Items]
Net sales	1,905	1,717	3,639	3,246
North America | Plumbing Products
Disaggregation of Revenue [Line Items]
Net sales	926	867	1,818	1,675
North America | Decorative Architectural Products
Disaggregation of Revenue [Line Items]
Net sales	979	850	1,821	1,571
International, principally Europe
Disaggregation of Revenue [Line Items]
Net sales	447	462	914	903
International, principally Europe | Plumbing Products
Disaggregation of Revenue [Line Items]
Net sales	447	462	914	903
International, principally Europe | Decorative Architectural Products
Disaggregation of Revenue [Line Items]
Net sales	$ 0	$ 0	$ 0	$ 0