Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Jan. 29, 2023	Jan. 30, 2022	Jan. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 581	$ 225	$ 37
Net interest rate swap gain (loss), net of tax	44	34	3
Total comprehensive income	625	259	$ 40
Less: comprehensive income attributable to non-controlling interests	232	71
Total comprehensive income attributable to Core & Main, Inc.	$ 393	$ 188