LONG-TERM DEBT AND FINANCE LEASE OBLIGATIONS - Schedule of Long-term Debt (Details) - USD ($) $ in Millions	Nov. 29, 2025	Feb. 22, 2025
Debt Instrument [Line Items]
Finance lease obligations	$ 393.4	$ 427.9
Total debt	9,012.7	7,820.1
Less current maturities	(595.7)	(57.6)
Long-term portion	8,417.0	7,762.5
Senior Unsecured Notes due 2027 to 2034, interest rate range of 3.50% to 6.50% | Senior Notes
Debt Instrument [Line Items]
Long-term debt, gross	$ 7,255.6	6,517.0
Senior Unsecured Notes due 2027 to 2034, interest rate range of 3.50% to 6.50% | Senior Notes | Minimum
Debt Instrument [Line Items]
Stated interest rate percentage	3.50%
Senior Unsecured Notes due 2027 to 2034, interest rate range of 3.50% to 6.50% | Senior Notes | Maximum
Debt Instrument [Line Items]
Stated interest rate percentage	6.50%
New Albertsons L.P. Notes due 2026 to 2031, interest rate range of 6.52% to 8.70% | Notes Payable
Debt Instrument [Line Items]
Long-term debt, gross	$ 488.1	484.6
New Albertsons L.P. Notes due 2026 to 2031, interest rate range of 6.52% to 8.70% | Notes Payable | Minimum
Debt Instrument [Line Items]
Stated interest rate percentage	6.52%
New Albertsons L.P. Notes due 2026 to 2031, interest rate range of 6.52% to 8.70% | Notes Payable | Maximum
Debt Instrument [Line Items]
Stated interest rate percentage	8.70%
Safeway Inc. Notes due 2027 to 2031, interest rate range of 7.25% to 7.45% | Notes Payable
Debt Instrument [Line Items]
Long-term debt, gross	$ 376.4	375.9
Safeway Inc. Notes due 2027 to 2031, interest rate range of 7.25% to 7.45% | Notes Payable | Minimum
Debt Instrument [Line Items]
Stated interest rate percentage	7.25%
Safeway Inc. Notes due 2027 to 2031, interest rate range of 7.25% to 7.45% | Notes Payable | Maximum
Debt Instrument [Line Items]
Stated interest rate percentage	7.45%
ABL Facility | Line of Credit
Debt Instrument [Line Items]
Long-term debt, gross	$ 485.0	0.0
Other financing obligations
Debt Instrument [Line Items]
Long-term debt, gross	$ 14.2	$ 14.7