DESCRIPTION OF BUSINESS, BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Sales Revenue by Product Type (Details) - USD ($) $ in Millions	12 Months Ended
	Feb. 28, 2026	Feb. 22, 2025	Feb. 24, 2024
Concentration Risk [Line Items]
Net sales and other revenue	$ 83,172.5	$ 80,390.9	$ 79,237.7
Incremental net sales	$ 1,400.0
Sales Revenue, Product Line \| Product Concentration Risk
Concentration Risk [Line Items]
Percentage of total net sales and other revenue	100.00%	100.00%	100.00%
Non-perishables
Concentration Risk [Line Items]
Net sales and other revenue	$ 40,624.8	$ 40,102.8	$ 39,977.3
Non-perishables \| Sales Revenue, Product Line \| Product Concentration Risk
Concentration Risk [Line Items]
Percentage of total net sales and other revenue	48.80%	49.90%	50.50%
Fresh
Concentration Risk [Line Items]
Net sales and other revenue	$ 26,024.2	$ 25,507.3	$ 25,442.7
Fresh \| Sales Revenue, Product Line \| Product Concentration Risk
Concentration Risk [Line Items]
Percentage of total net sales and other revenue	31.30%	31.70%	32.10%
Pharmacy
Concentration Risk [Line Items]
Net sales and other revenue	$ 11,414.9	$ 9,597.2	$ 8,240.0
Pharmacy \| Sales Revenue, Product Line \| Product Concentration Risk
Concentration Risk [Line Items]
Percentage of total net sales and other revenue	13.70%	11.90%	10.40%
Fuel
Concentration Risk [Line Items]
Net sales and other revenue	$ 3,803.0	$ 3,980.6	$ 4,396.7
Fuel \| Sales Revenue, Product Line \| Product Concentration Risk
Concentration Risk [Line Items]
Percentage of total net sales and other revenue	4.60%	5.00%	5.50%
Other
Concentration Risk [Line Items]
Net sales and other revenue	$ 1,305.6	$ 1,203.0	$ 1,181.0
Other \| Sales Revenue, Product Line \| Product Concentration Risk
Concentration Risk [Line Items]
Percentage of total net sales and other revenue	1.60%	1.50%	1.50%