BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Sales Revenue by Similar Products (Details) - USD ($) $ in Millions	4 Months Ended
	Jun. 15, 2019	Jun. 16, 2018
Concentration Risk [Line Items]
Net sales and other revenue	$ 18,738.4	$ 18,653.4
Product line | Product concentration risk
Concentration Risk [Line Items]
Net sales and other revenue	$ 18,738.4	$ 18,653.4
Percentage of total net sales and other revenue	100.00%	100.00%
Non-perishables | Product line | Product concentration risk
Concentration Risk [Line Items]
Net sales and other revenue	$ 8,022.2	$ 8,063.3
Percentage of total net sales and other revenue	42.80%	43.20%
Perishables | Product line | Product concentration risk
Concentration Risk [Line Items]
Net sales and other revenue	$ 7,811.6	$ 7,727.1
Percentage of total net sales and other revenue	41.70%	41.40%
Pharmacy | Product line | Product concentration risk
Concentration Risk [Line Items]
Net sales and other revenue	$ 1,573.2	$ 1,527.2
Percentage of total net sales and other revenue	8.40%	8.20%
Fuel | Product line | Product concentration risk
Concentration Risk [Line Items]
Net sales and other revenue	$ 1,076.5	$ 1,098.1
Percentage of total net sales and other revenue	5.70%	5.90%
Other | Product line | Product concentration risk
Concentration Risk [Line Items]
Net sales and other revenue	$ 254.9	$ 237.7
Percentage of total net sales and other revenue	1.40%	1.30%