ACCOUNTING POLICIES - Revenue Recognition (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Aug. 18, 2018	Aug. 12, 2017	Aug. 18, 2018	Aug. 12, 2017	Feb. 03, 2018
Disaggregation of revenue
Receivables	$ 1,488		$ 1,488		$ 1,637
Typical period for redemption of gift certificates			12 months
Gift card and gift certificate deferred revenue liability	72		$ 72		90
Total Sales and other revenue	$ 27,869	$ 27,597	$ 65,399	$ 63,882
Percentage of total sales	100.00%	100.00%	100.00%	100.00%
Merchandise costs, including advertising, warehousing, and transportation, excluding items shown separately below	$ 21,930	$ 21,609	$ 51,293	$ 49,890
Non Perishable
Disaggregation of revenue
Total Sales and other revenue	$ 13,737	$ 13,536	$ 32,026	$ 31,463
Percentage of total sales	49.30%	49.10%	49.00%	49.20%
Fresh
Disaggregation of revenue
Total Sales and other revenue	$ 6,825	$ 6,745	$ 15,908	$ 15,520
Percentage of total sales	24.50%	24.40%	24.30%	24.20%
Supermarket Fuel
Disaggregation of revenue
Total Sales and other revenue	$ 3,781	$ 2,927	$ 8,341	$ 6,744
Percentage of total sales	13.60%	10.60%	12.80%	10.60%
Pharmacy
Disaggregation of revenue
Typical period for collection of third party receivables			3 months
Receivables	$ 605		$ 605		$ 571
Total Sales and other revenue	$ 2,392	$ 2,393	$ 5,628	$ 5,591
Percentage of total sales	8.60%	8.70%	8.60%	8.80%
Pharmacy \| Adjustment
Disaggregation of revenue
Total Sales and other revenue	$ (65)		$ (126)
Merchandise costs, including advertising, warehousing, and transportation, excluding items shown separately below	(65)		(126)
Convenience Stores
Disaggregation of revenue
Total Sales and other revenue		$ 1,048	$ 944	$ 2,359
Percentage of total sales		3.80%	1.40%	3.70%
Other
Disaggregation of revenue
Total Sales and other revenue	$ 1,134	$ 948	$ 2,552	$ 2,205
Percentage of total sales	4.00%	3.40%	3.90%	3.50%

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The typical period for collection of third party receivables.

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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The aggregate cost of goods produced and sold during the reporting period, excluding depreciation, depletion, and amortization.

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The total amount due to the entity within one year of the balance sheet date (or one operating cycle, if longer) from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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