Condensed Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended
	May 04, 2025	Apr. 28, 2024
Income Statement [Abstract]
Net sales	$ 1,911	$ 1,741
Cost of sales	1,401	1,273
Gross profit	510	468
Operating expenses:
Selling, general and administrative	293	257
Depreciation and amortization	46	43
Total operating expenses	339	300
Operating income	171	168
Interest expense	30	34
Income before provision for income taxes	141	134
Provision for income taxes	36	33
Net income	105	101
Less: net income attributable to non-controlling interests	5	6
Net income attributable to Core & Main, Inc.	$ 100	$ 95
Earnings per share:
Basic (in dollars per share)	$ 0.53	$ 0.49
Diluted (in dollars per share)	$ 0.52	$ 0.49
Basic (shares)	189,802,381	192,194,061
Diluted (shares)	198,700,476	202,615,824