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. 25, 2023	Feb. 26, 2022	Feb. 27, 2021
Concentration Risk [Line Items]
Net sales and other revenue	$ 77,649.7	$ 71,887.0	$ 69,690.4
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	$ 39,142.4	$ 36,486.7	$ 37,520.0
Non-perishables | Sales Revenue, Product Line | Product Concentration Risk
Concentration Risk [Line Items]
Percentage of total net sales and other revenue	50.40%	50.80%	53.80%
Fresh
Concentration Risk [Line Items]
Net sales and other revenue	$ 25,585.4	$ 24,636.8	$ 23,674.5
Fresh | Sales Revenue, Product Line | Product Concentration Risk
Concentration Risk [Line Items]
Percentage of total net sales and other revenue	32.90%	34.30%	34.00%
Pharmacy
Concentration Risk [Line Items]
Net sales and other revenue	$ 6,769.3	$ 5,823.3	$ 5,195.8
Pharmacy | Sales Revenue, Product Line | Product Concentration Risk
Concentration Risk [Line Items]
Percentage of total net sales and other revenue	8.70%	8.10%	7.40%
Fuel
Concentration Risk [Line Items]
Net sales and other revenue	$ 4,857.6	$ 3,747.5	$ 2,236.5
Fuel | Sales Revenue, Product Line | Product Concentration Risk
Concentration Risk [Line Items]
Percentage of total net sales and other revenue	6.30%	5.20%	3.20%
Other
Concentration Risk [Line Items]
Net sales and other revenue	$ 1,295.0	$ 1,192.7	$ 1,063.6
Other | Sales Revenue, Product Line | Product Concentration Risk
Concentration Risk [Line Items]
Percentage of total net sales and other revenue	1.70%	1.60%	1.60%