Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Jan. 30, 2022	Jan. 31, 2021	Feb. 02, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 225	$ 37	$ 36
Net interest rate swap gain (loss), net of tax (expense) benefit of $(6), $(1) and $2	34	3	(10)
Total comprehensive income	259	$ 40	$ 26
Less: comprehensive income attributable to non-controlling interests	71
Total comprehensive income attributable to Core & Main, Inc.	$ 188