Indebtedness and Credit Agreements - Continuing operations and discontinued operations (Details) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Dec. 01, 2018	Dec. 02, 2017	Mar. 03, 2018	Mar. 04, 2017
Indebtedness and Credit Agreements
Long-term Debt, Total			$ 3,889,738
Capital Lease Obligations, Total	$ 42,177		52,554
Total Debt	3,436,732		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	0		(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			(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				$ 4,027,400
Use of cash for financing purposes	(1,343,793)	$ (245,340)
Estimated excess cash proceeds from sale of debt	0		$ 549,549
Estimated excess cash proceeds decrease from sale of debt	$ 24,500