Non-controlling Interests (Details) - Holdings - shares				12 Months Ended
	Jan. 28, 2024	Jan. 29, 2023	Jan. 30, 2022	Jan. 28, 2024	Jan. 29, 2023
Partnership Interests
Partnership Interests (in units)	200,906,884	245,236,634	242,866,811	200,906,884	245,236,634
Retirement of Partnership Interests (in units)				(45,000,000)
Issuance of Partnership Interests (in units)				346,977	110,644
Exchange of Partnership Interests (in units)				(48,019)	(1,629)
Forfeiture of Partnership interests (in units)					20
Vesting of Partnership Interests (in units)				371,292	2,260,828
Ownership Percentage
Ownership Percentage	100.00%	100.00%	100.00%
Retirement of Partnership interests (percent)				0.00%
Issuance of Partnership Interests (percent)				0.00%	0.00%
Exchange of Partnership Interests (percent)				0.00%	0.00%
Forfeiture of Partnership interests (percent)					0.00%
Vesting of Partnership Interests (percent)				0.00%	0.00%
Core & Main
Partnership Interests
Partnership Interests (in units)	191,663,608	172,765,161	167,522,403	191,663,608	172,765,161
Retirement of Partnership Interests (in units)				(28,131,551)
Issuance of Partnership Interests (in units)				346,977	110,644
Exchange of Partnership Interests (in units)				46,683,021	5,132,134
Forfeiture of Partnership interests (in units)					20
Vesting of Partnership Interests (in units)				0	0
Ownership Percentage
Ownership Percentage	95.40%	70.40%	69.00%
Retirement of Partnership interests (percent)				(1.80%)
Issuance of Partnership Interests (percent)				0.10%	0.00%
Exchange of Partnership Interests (percent)				23.20%	2.10%
Forfeiture of Partnership interests (percent)					0.00%
Vesting of Partnership Interests (percent)				(0.10%)	(0.70%)
Continuing Limited Partners
Partnership Interests
Partnership Interests (in units)	9,243,276	72,471,473	75,344,408	9,243,276	72,471,473
Retirement of Partnership Interests (in units)				(16,868,449)
Issuance of Partnership Interests (in units)				0	0
Exchange of Partnership Interests (in units)				(46,731,040)	(5,133,763)
Forfeiture of Partnership interests (in units)					0
Vesting of Partnership Interests (in units)				371,292	2,260,828
Ownership Percentage
Ownership Percentage	4.60%	29.60%	31.00%
Retirement of Partnership interests (percent)				(1.80%)
Issuance of Partnership Interests (percent)				(0.10%)	0.00%
Exchange of Partnership Interests (percent)				(23.20%)	(2.10%)
Forfeiture of Partnership interests (percent)					0.00%
Vesting of Partnership Interests (percent)				0.10%	0.70%