Segment Reporting (Details) $ in Thousands			3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 24, 2015 segment	Jun. 23, 2015 segment	Aug. 29, 2015 USD ($)	Aug. 30, 2014 USD ($)	Aug. 29, 2015 USD ($)	Aug. 30, 2014 USD ($)	Feb. 28, 2015 USD ($)
Segment Reporting
Number of reportable segments | segment	2	1
Revenues			$ 7,664,776	$ 6,522,584	$ 14,312,337	$ 12,988,115
Gross Profit			1,922,291	1,894,579	3,781,821	3,697,558
Adjusted EBITDA			346,824	364,166	646,087	646,779
Total Assets			11,979,231		11,979,231		$ 8,863,252
Goodwill			1,533,827		1,533,827		76,124
Additions to property and equipment and intangible assets					315,145		539,386
Accounts receivable			1,872,976		1,872,976		980,904
Retail Pharmacy
Segment Reporting
Goodwill			76,124		76,124		76,124
Pharmacy Services
Segment Reporting
Goodwill			1,457,703		1,457,703
Operating segments | Retail Pharmacy
Segment Reporting
Revenues			6,647,243	6,522,584	13,294,804	12,988,115
Gross Profit			1,860,513	1,894,579	3,720,043	3,697,558
Adjusted EBITDA			313,602	$ 364,166	612,865	$ 646,779
Total Assets			8,848,115		8,848,115		8,863,252
Goodwill			76,124		76,124		76,124
Additions to property and equipment and intangible assets					314,774		$ 539,386
Operating segments | Pharmacy Services
Segment Reporting
Revenues			1,071,889		1,071,889
Gross Profit			61,778		61,778
Adjusted EBITDA			33,222		33,222
Total Assets			3,310,325		3,310,325
Goodwill			1,457,703		1,457,703
Additions to property and equipment and intangible assets					371
Intersegment Eliminations
Segment Reporting
Revenues			(54,356)		(54,356)
Total Assets			(179,209)		(179,209)
Long-term deferred tax liability			(143,000)		(143,000)
Accounts receivable			$ (36,209)		$ (36,209)