For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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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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Summary of Significant Accounting Policies - Sales (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Feb. 27, 2021	Nov. 28, 2020	Aug. 29, 2020	May 30, 2020	Feb. 29, 2020	Nov. 30, 2019	Aug. 31, 2019	Jun. 01, 2019	Feb. 27, 2021	Feb. 29, 2020	Mar. 02, 2019
Product Class
Total revenue	$ 5,916,856	$ 6,117,038	$ 5,981,970	$ 6,027,376	$ 5,727,242	$ 5,462,298	$ 5,366,264	$ 5,372,589	$ 24,043,240	$ 21,928,393	$ 21,639,557
Intersegment elimination
Product Class
Total revenue									(292,157)	(247,353)	(211,283)
Retail Pharmacy
Product Class
Other revenue									126,875	146,917	150,461
Total revenue									$ 16,365,260	$ 15,616,186	$ 15,757,152
Retail Pharmacy \| Prescription drugs \| Revenue from Contract with Customer, Segment Benchmark [Member] \| Product Concentration Risk [Member]
Product Class
Percentage of sales									66.70%	67.00%	66.60%
Retail Pharmacy \| Over-the-counter medications and personal care \| Revenue from Contract with Customer, Segment Benchmark [Member] \| Product Concentration Risk [Member]
Product Class
Percentage of sales									10.80%
Retail Pharmacy \| Health and beauty aids \| Revenue from Contract with Customer, Segment Benchmark [Member] \| Product Concentration Risk [Member]
Product Class
Percentage of sales									4.80%
Retail Pharmacy \| General merchandise and other \| Revenue from Contract with Customer, Segment Benchmark [Member] \| Product Concentration Risk [Member]
Product Class
Percentage of sales									17.70%
Pharmacy sales
Product Class
Revenue from contract with customer									$ 10,915,442	$ 10,354,293	$ 10,391,539
Front end sales
Product Class
Revenue from contract with customer									5,322,943	5,114,976	5,215,152
Pharmacy Services
Product Class
Revenue from contract with customer									7,970,137
Total revenue									$ 7,970,137	$ 6,559,560	$ 6,093,688