Acquisitions - Narrative (Details) $ in Millions	12 Months Ended
	Feb. 02, 2025 USD ($)	Jan. 28, 2024 USD ($)	Jan. 29, 2023 USD ($)	Nov. 07, 2024 branch_location	Oct. 30, 2024 branch_location	Sep. 16, 2024 branch_location	Sep. 09, 2024 branch_location	Aug. 12, 2024 branch_location	May 06, 2024 branch_location	Apr. 30, 2024 branch_location	Apr. 01, 2024 branch_location	Mar. 07, 2024 branch_location	Feb. 12, 2024 branch_location	Jan. 16, 2024 branch_location	Dec. 04, 2023 branch_location	Nov. 28, 2023 branch_location	Jul. 12, 2023 branch_location	Jul. 10, 2023 branch_location	Apr. 17, 2023 branch_location	Mar. 06, 2023 branch_location	Dec. 05, 2022 branch_location	Oct. 10, 2022 branch_location	Oct. 03, 2022 branch_location	Aug. 08, 2022 branch_location	Jun. 28, 2022 branch_location	May 02, 2022 branch_location	Mar. 21, 2022 branch_location
Business Acquisition [Line Items]
Transaction value | $	$ 769	$ 244	$ 124
Goodwill expected to be tax deductible | $	260	$ 11	$ 21
ARGCO Northeast LLC
Business Acquisition [Line Items]
Number of branch locations acquired				1
Eastcom Associates, Inc.
Business Acquisition [Line Items]
Number of branch locations acquired					1
Green Equipment Company
Business Acquisition [Line Items]
Number of branch locations acquired						1
Trumbull Industries & Manufacturing, Inc.
Business Acquisition [Line Items]
Number of branch locations acquired																							3
GroGreen Solutions Georgia, LLC
Business Acquisition [Line Items]
Number of branch locations acquired							4
HM Pipe Products LP
Business Acquisition [Line Items]
Number of branch locations acquired								2
Geothermal Supply Company Inc.
Business Acquisition [Line Items]
Number of branch locations acquired									1
EGW Utilities Inc.
Business Acquisition [Line Items]
Number of branch locations acquired										1
ACF West Inc.
Business Acquisition [Line Items]
Number of branch locations acquired											6
Dana Kepner Company LLC
Business Acquisition [Line Items]
Number of branch locations acquired												21
Net working capital purchase price allocation | $	$ 90
Eastern Supply Inc.
Business Acquisition [Line Items]
Number of branch locations acquired													2
Lee Supply Company, Inc.
Business Acquisition [Line Items]
Number of branch locations acquired														4
Granite Water Works, Inc.
Business Acquisition [Line Items]
Number of branch locations acquired															1
Enviroscape Erosion Control Materials Ltd.
Business Acquisition [Line Items]
Number of branch locations acquired																1
J.W. D’Angelo Co.
Business Acquisition [Line Items]
Number of branch locations acquired																	3
Foster Supply Inc.
Business Acquisition [Line Items]
Number of branch locations acquired																		7
Midwest Pipe Supply Inc.
Business Acquisition [Line Items]
Number of branch locations acquired																			1
Landscape & Construction Supplies LLC
Business Acquisition [Line Items]
Number of branch locations acquired																				2
Lanier Municipal Supply Co. Inc.
Business Acquisition [Line Items]
Number of branch locations acquired																					4
Distributors, Inc.
Business Acquisition [Line Items]
Number of branch locations acquired																						1
Inland Water Works Supply, Co.
Business Acquisition [Line Items]
Number of branch locations acquired																								1
Earthsavers Erosion Control, LLC
Business Acquisition [Line Items]
Number of branch locations acquired																									3
Lock City Supply, Inc.
Business Acquisition [Line Items]
Number of branch locations acquired																										1
Dodson Engineered Products, Inc.
Business Acquisition [Line Items]
Number of branch locations acquired																											1