Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Jan. 28, 2024	Jan. 29, 2023	Jan. 30, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 531	$ 581	$ 225
Net interest rate swap gain (loss), net of tax	(22)	44	34
Total comprehensive income	509	625	259
Less: comprehensive income attributable to non-controlling interests	156	232	71
Total comprehensive income attributable to Core & Main, Inc.	$ 353	$ 393	$ 188