BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Sales Revenue by Similar Products (Details) - USD ($) $ in Millions	4 Months Ended
	Jun. 20, 2026	Jun. 14, 2025
Concentration Risk [Line Items]
Net sales and other revenue	$ 24,941.6	$ 24,880.8
Sales Revenue, Product Line | Product Concentration Risk
Concentration Risk [Line Items]
Percentage of total net sales and other revenue	100.00%	100.00%
Non-perishables
Concentration Risk [Line Items]
Net sales and other revenue	$ 11,875.7	$ 12,141.7
Non-perishables | Sales Revenue, Product Line | Product Concentration Risk
Concentration Risk [Line Items]
Percentage of total net sales and other revenue	47.60%	48.80%
Fresh
Concentration Risk [Line Items]
Net sales and other revenue	$ 7,883.1	$ 7,986.8
Fresh | Sales Revenue, Product Line | Product Concentration Risk
Concentration Risk [Line Items]
Percentage of total net sales and other revenue	31.60%	32.10%
Pharmacy
Concentration Risk [Line Items]
Net sales and other revenue	$ 3,304.0	$ 3,155.0
Pharmacy | Sales Revenue, Product Line | Product Concentration Risk
Concentration Risk [Line Items]
Percentage of total net sales and other revenue	13.20%	12.70%
Fuel
Concentration Risk [Line Items]
Net sales and other revenue	$ 1,463.9	$ 1,229.9
Fuel | Sales Revenue, Product Line | Product Concentration Risk
Concentration Risk [Line Items]
Percentage of total net sales and other revenue	5.90%	4.90%
Other
Concentration Risk [Line Items]
Net sales and other revenue	$ 414.9	$ 367.4
Other | Sales Revenue, Product Line | Product Concentration Risk
Concentration Risk [Line Items]
Percentage of total net sales and other revenue	1.70%	1.50%