Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 28, 2024	Jul. 30, 2023	Jul. 28, 2024	Jul. 30, 2023
Disaggregation of Revenue [Line Items]
Total net sales	$ 1,964	$ 1,861	$ 3,705	$ 3,435
Pipes, valves & fittings products
Disaggregation of Revenue [Line Items]
Total net sales	1,329	1,283	2,498	2,357
Storm drainage products
Disaggregation of Revenue [Line Items]
Total net sales	306	278	559	493
Fire protection products
Disaggregation of Revenue [Line Items]
Total net sales	143	174	310	343
Meter products
Disaggregation of Revenue [Line Items]
Total net sales	$ 186	$ 126	$ 338	$ 242