SEGMENT REPORTING AND NET SALES - Schedule of Net Sales (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Aug. 02, 2026	Aug. 03, 2025	Aug. 02, 2026	Aug. 03, 2025
Disaggregation of Revenue [Line Items]
Net sales	$ 47,861	$ 45,277	$ 89,626	$ 85,133
In the U.S.
Disaggregation of Revenue [Line Items]
Net sales	43,907	41,729	82,640	78,953
Outside the U.S.
Disaggregation of Revenue [Line Items]
Net sales	3,954	3,548	6,986	6,180
Primary
Disaggregation of Revenue [Line Items]
Net sales	42,806	42,157	80,569	79,444
Other
Disaggregation of Revenue [Line Items]
Net sales	$ 5,055	$ 3,120	$ 9,057	$ 5,689
Roofing Products \| Other \| Revenue Benchmark \| Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk percentage	39.00%	62.00%	39.00%	63.00%
Net sales – products
Disaggregation of Revenue [Line Items]
Net sales	$ 46,300	$ 43,725	$ 86,736	$ 82,237
Net sales – services
Disaggregation of Revenue [Line Items]
Net sales	1,561	1,552	2,890	2,896
Operating Segments \| Primary
Disaggregation of Revenue [Line Items]
Net sales	42,806	42,157	80,569	79,444
Operating Segments \| Building Materials \| Primary
Disaggregation of Revenue [Line Items]
Net sales	14,432	14,225	27,403	27,197
Operating Segments \| Décor \| Primary
Disaggregation of Revenue [Line Items]
Net sales	13,929	13,805	26,534	26,250
Operating Segments \| Hardlines \| Primary
Disaggregation of Revenue [Line Items]
Net sales	$ 14,445	$ 14,127	$ 26,632	$ 25,997