Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Nov. 02, 2025	Oct. 27, 2024	Nov. 02, 2025	Oct. 27, 2024
Statement of Comprehensive Income [Abstract]
Net income	$ 143	$ 140	$ 389	$ 367
Net comprehensive loss, net of tax benefit of $1, $3, $11 and $8, respectively	(5)	(9)	(34)	(24)
Total comprehensive income	138	131	355	343
Less: comprehensive income attributable to non-controlling interests	6	7	17	19
Total comprehensive income attributable to Core & Main, Inc.	$ 132	$ 124	$ 338	$ 324