LONG-TERM DEBT AND FINANCE LEASE OBLIGATIONS - Narrative (Details) - USD ($) $ in Millions		4 Months Ended
	Jun. 15, 2026	Jun. 20, 2026	Jun. 14, 2025	Feb. 28, 2026
Debt Instrument [Line Items]
Unamortized debt discounts		$ 35.4		$ 37.9
Deferred financing costs		52.1		55.2
Repayments of long-term debt		59.6	$ 600.2
ABL Facility | Notes Payable
Debt Instrument [Line Items]
Outstanding balance on line of credit		700.0		425.0
Letter Of Credit Sub-Facility | Line of Credit
Debt Instrument [Line Items]
Outstanding balance on letters of credit		$ 12.6		$ 12.7
New Albertsons L.P. Notes | Senior Notes
Debt Instrument [Line Items]
Repayments of long-term debt	$ 56.5
Stated interest rate percentage	7.75%