Revenue (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Nov. 02, 2025	Oct. 27, 2024	Nov. 02, 2025	Oct. 27, 2024
Disaggregation of Revenue [Line Items]
Total net sales	$ 2,062	$ 2,038	$ 6,066	$ 5,743
Pipes, valves & fittings products
Disaggregation of Revenue [Line Items]
Total net sales	1,382	1,386	4,109	3,884
Storm drainage products
Disaggregation of Revenue [Line Items]
Total net sales	333	327	963	886
Fire protection products
Disaggregation of Revenue [Line Items]
Total net sales	152	145	459	455
Meter products
Disaggregation of Revenue [Line Items]
Total net sales	$ 195	$ 180	$ 535	$ 518