Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Apr. 30, 2023	May 01, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 133	$ 137
Net interest rate swap (loss) gain, net of tax benefit (expense) of $1 and $(8), respectively	(8)	37
Total comprehensive income	125	174
Less: comprehensive income attributable to non-controlling interests	44	65
Total comprehensive income attributable to Core & Main, Inc.	$ 81	$ 109