Leases - Supplemental B/S Information (Details) - USD ($) $ in Thousands	Aug. 31, 2019	Mar. 03, 2019	Mar. 02, 2019
Operating leases:
Operating lease right-of-use asset	$ 2,944,651	$ 3,026,976
Short-term operating lease liabilities	502,706	457,305
Long-term operating lease liabilities	2,745,598	2,838,022
Total operating lease liabilities	3,248,304
Finance leases:
Property, plant and equipment, net	1,270,467	1,308,514	$ 1,308,514
Current maturities of long-term debt and lease financing obligations	10,704
Lease financing obligations, less current maturities, ASC842	22,540	$ 24,064
Total finance lease liabilities, ASC842	$ 33,244
Weighted average remaining lease term
Operating leases (in years)	8 years
Finance leases (in years)	8 years 4 months 24 days
Weighted average discount rate
Operating leases (as a percent)	6.00%
Finance leases (as a percent)	10.00%
Finance Leased Assets [Member]
Finance leases:
Property, plant and equipment, net	$ 23,852