Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Oct. 27, 2024	Oct. 29, 2023	Oct. 27, 2024	Oct. 29, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 140	$ 158	$ 367	$ 455
Net interest rate swap loss, net of tax benefit (expense) of $3, $(1), $8 and $(1), respectively	(9)	(4)	(24)	(4)
Total comprehensive income	131	154	343	451
Less: comprehensive income attributable to non-controlling interests	7	45	19	145
Total comprehensive income attributable to Core & Main, Inc.	$ 124	$ 109	$ 324	$ 306

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners.

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- Definition

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.

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- Definition

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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