INTANGIBLE ASSETS - Schedule of Intangible Assets (Details) - USD ($) $ in Millions	Feb. 22, 2025	Feb. 24, 2024
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 5,310.7	$ 5,202.3
Accumulated amortization	(3,077.0)	(2,854.0)
Total	2,233.7	2,348.3
Liquor licenses and restricted covenants	84.3	86.2
Total intangible assets, gross	5,395.0	5,288.5
Total intangible assets, net	$ 2,318.0	2,434.5
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	(507.7)	(459.1)
Total	$ 1,428.1	1,476.7
Customer prescription files
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives (Years)	5 years
Gross carrying amount	$ 1,441.0	1,430.9
Accumulated amortization	(1,400.2)	(1,389.1)
Total	40.8	41.8
Internally developed software
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	1,889.2	1,769.5
Accumulated amortization	(1,127.5)	(944.3)
Total	$ 761.7	825.2
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	$ 44.7	66.1
Accumulated amortization	(41.6)	(61.5)
Total	$ 3.1	$ 4.6
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