Basis of Presentation (Details) - Revenue Recognition $ in Thousands	3 Months Ended
	Jun. 02, 2018 USD ($) Point	Jun. 03, 2017 USD ($)	Mar. 04, 2018 USD ($)	Mar. 03, 2018 USD ($)
Revenue Recognition
Revenues	$ 5,388,490	$ 5,436,523
Accounts receivable, net	1,908,955		$ 1,811,203	$ 1,869,100
Inventories, net	1,809,595		1,850,660	1,799,539
Deferred tax assets	522,674		592,247	594,019
Total assets	8,329,453		8,980,779	8,989,327
Accumulated deficit	(4,076,602)		(4,291,019)	(4,282,471)
Total stockholders' equity	1,812,311		1,592,462	1,601,010
Accounting Standards Update 2016-09
Revenue Recognition
Revenues	123,500
Accounts receivable, net	(57,897)
Inventories, net	51,121
Accumulated deficit	$ 8,548
Difference between Revenue Guidance in Effect before and after Topic 606
Revenue Recognition
Accounts receivable, net			(57,897)
Inventories, net			51,121
Deferred tax assets			(1,772)
Total assets			(8,548)
Accumulated deficit			(8,548)
Total stockholders' equity			$ (8,548)
Retail Pharmacy
Revenue Recognition
Number of points awarded for each dollar spent towards front end merchandise | Point	1
Number of points awarded for each qualifying prescription | Point	25
Accumulated number of points in a calendar year to achieve the "Gold" tier | Point	1,000
Percentage discount on qualifying purchases of front end merchandise on achieving "Gold" tier	20.00%
Accrued contract liabilities	$ 73,191			63,851
Accrued contract liabilities included in other current liabilities	49,793			50,036
Accrued contract liabilities included in noncurrent liabilities	23,398			$ 13,815
Pharmacy sales	2,565,286
Front end sales	1,296,147
Revenues	3,897,765
Retail Pharmacy | Other
Revenue Recognition
Revenues	36,332
Pharmacy Services
Revenue Recognition
Revenues	$ 1,542,762