Leases - Minimum lease payments - ASC840 (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 02, 2019	Mar. 03, 2018
Leases
Total rental expense, net of sublease income	$ 626,166	$ 628,511
Sublease income	4,509	4,682
Contingent rental	7,084	$ 8,339
Minimum payments for Lease Financing Obligations, ASC840
2020	19,300
2021	4,811
2022	4,588
2023	4,383
2024	4,042
Later years	20,470
Total minimum lease payments	57,594
Amount representing interest	(17,418)
Present value of minimum lease payments	40,176
Minimum payments for Operating Leases, ASC840
2021	687,412
2021	610,874
2022	545,863
2023	490,864
2024	431,714
Later years	1,541,408
Total minimum lease payments	$ 4,308,135