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ACCOUNTING POLICIES - REVENUE RECOGNITION (Details) - USD ($) $ in Millions	3 Months Ended						4 Months Ended		12 Months Ended
	Jan. 30, 2021	Nov. 07, 2020	Aug. 15, 2020	Feb. 01, 2020	Nov. 09, 2019	Aug. 17, 2019	May 23, 2020	May 25, 2019	Jan. 30, 2021	Feb. 01, 2020	Feb. 02, 2019
Disaggregation of revenue
Total Sales and other revenue	$ 30,737	$ 29,723	$ 30,489	$ 28,893	$ 27,974	$ 28,168	$ 41,549	$ 37,251	$ 132,498	$ 122,286	$ 121,852
Receivables	1,781			1,706					$ 1,781	1,706
Typical period for redemption of gift certificates									12 months
Gift card and gift certificate deferred revenue liability	160			114					$ 160	$ 114
Percentage of total sales									100.00%	100.00%	100.00%
Non Perishable
Disaggregation of revenue
Total Sales and other revenue									$ 71,434	$ 61,464	$ 60,649
Percentage of total sales									53.90%	50.30%	49.80%
Fresh
Disaggregation of revenue
Total Sales and other revenue									$ 33,449	$ 29,452	$ 29,089
Percentage of total sales									25.20%	24.10%	23.90%
Supermarket Fuel
Disaggregation of revenue
Total Sales and other revenue									$ 9,486	$ 14,052	$ 14,903
Percentage of total sales									7.20%	11.50%	12.20%
Pharmacy
Disaggregation of revenue
Total Sales and other revenue									$ 11,388	$ 11,015	$ 10,617
Typical period for collection of third party receivables									3 months
Receivables	$ 672			$ 646					$ 672	$ 646
Percentage of total sales									8.60%	9.00%	8.70%
Convenience Stores
Disaggregation of revenue
Total Sales and other revenue											$ 944
Percentage of total sales											0.80%
Other
Disaggregation of revenue
Total Sales and other revenue									$ 6,741	$ 6,303	$ 5,650
Percentage of total sales									5.10%	5.10%	4.60%

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