Asset Sale to WBA - Carrying amount of assets sold (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 03, 2018	Mar. 04, 2017	Feb. 27, 2016
Current assets held for sale
Current assets held for sale	$ 438,137	$ 1,047,670
Noncurrent assets held for sale
Noncurrent assets held for sale		882,268
Current liabilities held for sale
Current liabilities held for sale	560,205	32,683
Noncurrent liabilities held for sale
Noncurrent liabilities held for sale		4,057,392
Goodwill	1,421,120	1,682,847	$ 1,680,843
Amounts reclassified as current and noncurrent liabilities held for sale in connection with the Sale, Debt	549,549	4,027,400
WBA and Walgreen Co.
Noncurrent liabilities held for sale
Proceeds from assets sold	3,135,000
WBA | Assets under Retail Pharmacy to be Sold | Assets held for sale
Current assets held for sale
Inventories	264,286	1,047,670
Property and equipment	158,433
Goodwill	4,629
Intangible assets	10,789
Current assets held for sale	438,137	1,047,670
Noncurrent assets held for sale
Property and equipment		725,230
Goodwill		32,632
Intangible assets		120,389
Other assets		4,017
Noncurrent assets held for sale		882,268
Current liabilities held for sale
Current maturities of long-term lease financing obligations	270	3,626
Accrued salaries, wages and other current liabilities	6,146	29,057
Long-term debt, less current maturities	549,549
Lease financing obligations, less current maturities	838
Other noncurrent liabilities	3,402
Current liabilities held for sale	560,205	32,683
Noncurrent liabilities held for sale
Long-term debt, less current maturities		4,027,400
Lease financing obligations, less current maturities		6,866
Other noncurrent liabilities		23,126
Noncurrent liabilities held for sale		4,057,392
Goodwill	76,124
Long-term debt, less current maturities	$ 4,027,400
Amounts reclassified as current and noncurrent liabilities held for sale in connection with the Sale, Debt		$ 4,027,400