Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	May 01, 2022	May 02, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 137	$ 27
Net interest rate swap gain, net of tax (expense) of $(8) and $—, respectively	37	2
Total comprehensive income	174	$ 29
Less: comprehensive income attributable to non-controlling interests	65
Total comprehensive income attributable to Core & Main, Inc.	$ 109