INTANGIBLE ASSETS - Schedule of Intangible Assets (Details) - USD ($) $ in Millions	Feb. 24, 2024	Feb. 25, 2023
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 5,202.3	$ 4,976.7
Accumulated amortization	(2,854.0)	(2,597.5)
Total	2,348.3	2,379.2
Liquor licenses and restricted covenants	86.2	86.2
Total intangible assets, gross	5,288.5	5,062.9
Total intangible assets, net	$ 2,434.5	2,465.4
Minimum
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives (Years)	3 years
Maximum
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives (Years)	40 years
Trade names
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives (Years)	40 years
Gross carrying amount	$ 1,935.8	1,935.8
Accumulated amortization	(459.1)	(410.5)
Total	$ 1,476.7	1,525.3
Customer prescription files
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives (Years)	5 years
Gross carrying amount	$ 1,430.9	1,405.3
Accumulated amortization	(1,389.1)	(1,381.6)
Total	41.8	23.7
Internally developed software
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	1,769.5	1,570.1
Accumulated amortization	(944.3)	(747.4)
Total	$ 825.2	822.7
Internally developed software | Minimum
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives (Years)	3 years
Internally developed software | Maximum
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives (Years)	5 years
Other intangible assets
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 66.1	65.5
Accumulated amortization	(61.5)	(58.0)
Total	$ 4.6	$ 7.5
Other intangible assets | Minimum
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives (Years)	3 years
Other intangible assets | Maximum
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives (Years)	6 years