Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	May 04, 2025	Apr. 28, 2024
Statement of Comprehensive Income [Abstract]
Net income	$ 105	$ 101
Net comprehensive (loss) gain, net of tax benefit (expense) of $7 and $(6), respectively	(21)	18
Total comprehensive income	84	119
Less: comprehensive income attributable to non-controlling interests	4	7
Total comprehensive income attributable to Core & Main, Inc.	$ 80	$ 112