Indebtedness and Credit Agreements - Continuing operations and discontinued operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 03, 2018	Mar. 04, 2017
Indebtedness and Credit Agreements
Long-term Debt, Total	$ 3,889,738	$ 7,263,378
Capital Lease Obligations, Total	52,554	65,315
Total Debt	3,942,292	7,328,693
Amounts reclassified as current and noncurrent liabilities held for sale in connection with the Sale, Debt	(549,549)	(4,027,400)
Amounts reclassified as current and noncurrent liabilities held for sale in connection with the Sale, Lease Financing Obligations	(1,108)	(10,492)
Amounts reclassified as current and noncurrent liabilities held for sale in connection with the Sale, Total Debt and Lease Financing Obligations	(550,657)	(4,037,892)
Total debt and lease financing obligations, debt	3,340,189	3,235,978
Total debt and lease financing obligations, lease financing obligations	51,446	54,823
Total debt and lease financing obligations	3,391,635	3,290,801
Current maturities of long-term debt - continuing operations	(90)	(90)
Lease financing obligations - continuing operations	(20,671)	(17,619)
Current maturities of long-term debt and lease financing obligations - continuing operations	(20,761)	(17,709)
Long-term debt, less current maturities - continuing operations	3,340,099	3,235,888
Lease financing obligations, less current maturities - continuing operations	30,775	37,204
Long-term debt and lease financing obligations, less current maturities - continuing operations	3,370,874	3,273,092
Excess cash proceeds from sale of debt	549,549	4,027,400
Estimated excess cash proceeds from sale of debt	$ 549,549	$ 4,027,400