INCOME TAXES - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Feb. 25, 2023	Feb. 26, 2022	Feb. 27, 2021	Feb. 29, 2020
Deferred tax assets:
Compensation and benefits	$ 190.6	$ 229.5
Net operating loss	99.5	107.0
Pension & postretirement benefits	248.9	280.2
Self-Insurance	289.7	275.3
Tax credits	26.2	30.7
Lease obligations	1,722.4	1,740.7
Other	110.9	97.4
Gross deferred tax assets	2,688.2	2,760.8
Less: valuation allowance	(102.3)	(113.6)	$ (130.4)	$ (135.1)
Total deferred tax assets	2,585.9	2,647.2
Deferred tax liabilities:
Depreciation and amortization	1,360.2	1,348.3
Inventories	373.1	361.8
Operating lease assets	1,518.9	1,530.1
Other	187.7	206.8
Total deferred tax liabilities	3,439.9	3,447.0
Net deferred tax liability	(854.0)	(799.8)
Noncurrent deferred tax asset
Deferred tax liabilities:
Net deferred tax liability	0.0	0.0
Noncurrent deferred tax liability
Deferred tax liabilities:
Net deferred tax liability	$ (854.0)	$ (799.8)