Indebtedness and Credit Agreements - Continuing operations and discontinued operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 02, 2019	Mar. 03, 2018	Mar. 04, 2017
Indebtedness and Credit Agreements
Long-term Debt, Total		$ 3,889,738
Capital Lease Obligations, Total	$ 40,176	52,554
Total Debt	3,494,760	3,942,292
Amounts reclassified as current and noncurrent liabilities held for sale in connection with the Sale, Debt		(549,549)
Amounts reclassified as current and noncurrent liabilities held for sale in connection with the Sale, Lease Financing Obligations		(1,108)
Amounts reclassified as current and noncurrent liabilities held for sale in connection with the Sale, Total Debt and Lease Financing Obligations		(550,657)
Total debt and lease financing obligations, Debt		3,340,189
Total debt and lease financing obligations, Lease financing obligations		51,446
Total debt and lease financing obligations		3,391,635
Current maturities of long-term debt - continuing operations		(90)
Current maturities of lease financing obligations - continuing operations	(16,112)	(20,671)
Current maturities of long-term debt and lease financing obligations - continuing operations		(20,761)
Long-term debt, less current maturities - continuing operations		3,340,099
Lease financing obligations, less current maturities - continuing operations		30,775
Long-term debt and lease financing obligations, less current maturities - continuing operations		3,370,874
Excess cash proceeds from sale of debt		4,000,000
Use of cash for financing purposes	$ (1,343,793)	$ (3,140,119)	$ (4,651)
Interest Rates and Maturities
Annual weighted average rate (as a percent)	5.60%	7.10%	5.40%