LEASES - Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	12 Months Ended
	Feb. 26, 2022	Feb. 27, 2021	Feb. 29, 2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 1,001.6	$ 973.7	$ 995.8
Operating cash flows from finance leases	61.6	70.5	79.8
Financing cash flows from finance leases	78.0	79.9	109.3
Right-of-use assets obtained in exchange for operating lease obligations	606.2	763.1	1,195.2
Right-of-use assets obtained in exchange for finance lease obligations	75.4	35.8	0.0
Sale and Leaseback Transaction, Gain (Loss), Net	0.0	0.0	487.1
Impairment of right-of-use operating lease assets	14.7	15.9	15.4
Impairment of right-of-use finance lease assets	$ 1.5	$ 6.3	$ 6.1
Weighted average remaining lease term - operating leases	11 years 1 month 6 days	11 years 8 months 12 days
Weighted average remaining lease term - finance leases	9 years	8 years 9 months 18 days
Weighted average discount rate - operating leases	6.50%	6.70%
Weighted average discount rate - finance leases	11.20%	12.30%