BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Sales Revenue by Similar Products (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Sep. 07, 2019	Sep. 08, 2018	Sep. 07, 2019	Sep. 08, 2018
Concentration Risk [Line Items]
Net sales and other revenue	$ 14,176.7	$ 14,024.1	$ 32,915.1	$ 32,677.5
Product line | Product concentration risk
Concentration Risk [Line Items]
Net sales and other revenue	$ 14,176.7	$ 14,024.1	$ 32,915.1	$ 32,677.5
Percentage of total net sales and other revenue	100.00%	100.00%	100.00%	100.00%
Non-perishables | Product line | Product concentration risk
Concentration Risk [Line Items]
Net sales and other revenue	$ 6,172.0	$ 6,089.8	$ 14,194.2	$ 14,153.1
Percentage of total net sales and other revenue	43.50%	43.40%	43.10%	43.30%
Perishables | Product line | Product concentration risk
Concentration Risk [Line Items]
Net sales and other revenue	$ 5,844.6	$ 5,775.5	$ 13,656.2	$ 13,502.6
Percentage of total net sales and other revenue	41.20%	41.20%	41.50%	41.30%
Pharmacy | Product line | Product concentration risk
Concentration Risk [Line Items]
Net sales and other revenue	$ 1,156.5	$ 1,125.3	$ 2,729.7	$ 2,652.5
Percentage of total net sales and other revenue	8.20%	8.00%	8.30%	8.10%
Fuel | Product line | Product concentration risk
Concentration Risk [Line Items]
Net sales and other revenue	$ 793.2	$ 856.0	$ 1,869.7	$ 1,954.1
Percentage of total net sales and other revenue	5.60%	6.10%	5.70%	6.00%
Other | Product line | Product concentration risk
Concentration Risk [Line Items]
Net sales and other revenue	$ 210.4	$ 177.5	$ 465.3	$ 415.2
Percentage of total net sales and other revenue	1.50%	1.30%	1.40%	1.30%