LONG-TERM DEBT AND FINANCE LEASE OBLIGATIONS - Schedule of Long-term Debt (Details) - USD ($) $ in Millions	Feb. 22, 2025	Feb. 24, 2024
Debt Instrument [Line Items]
Unamortized debt discounts	$ 28.6	$ 33.3
Deferred financing costs	31.6	42.7
Long-term debt	7,452.4
Finance lease obligations	427.9	460.4
Total debt	7,820.1	8,068.6
Less current maturities	(57.6)	(285.2)
Long-term portion	$ 7,762.5	7,783.4
Minimum | Safeway Inc. Notes due 2027 to 2031, interest rate range of 7.25% to 7.45%
Debt Instrument [Line Items]
Stated interest rate	7.25%
Maximum | Safeway Inc. Notes due 2027 to 2031, interest rate range of 7.25% to 7.45%
Debt Instrument [Line Items]
Stated interest rate	7.45%
Senior notes | Senior Unsecured Notes due 2026 to 2030, interest rate range of 3.25% to 7.50%
Debt Instrument [Line Items]
Long-term debt	$ 6,517.0	6,506.4
Senior notes | Minimum | Senior Unsecured Notes due 2026 to 2030, interest rate range of 3.25% to 7.50%
Debt Instrument [Line Items]
Stated interest rate	3.25%
Senior notes | Maximum | Senior Unsecured Notes due 2026 to 2030, interest rate range of 3.25% to 7.50%
Debt Instrument [Line Items]
Stated interest rate	7.50%
Notes payable | New Albertsons L.P. Notes due 2026 to 2031, interest rate range of 6.52% to 8.70%
Debt Instrument [Line Items]
Long-term debt	$ 484.6	480.1
Notes payable | Safeway Inc. Notes due 2027 to 2031, interest rate range of 7.25% to 7.45%
Debt Instrument [Line Items]
Long-term debt	375.9	375.4
Notes payable | ABL Facility
Debt Instrument [Line Items]
Long-term debt	$ 0.0	200.0
Notes payable | Minimum | New Albertsons L.P. Notes due 2026 to 2031, interest rate range of 6.52% to 8.70%
Debt Instrument [Line Items]
Stated interest rate	6.52%
Notes payable | Maximum | New Albertsons L.P. Notes due 2026 to 2031, interest rate range of 6.52% to 8.70%
Debt Instrument [Line Items]
Stated interest rate	8.70%
Other notes payable | Other financing obligations
Debt Instrument [Line Items]
Long-term debt	$ 14.7	$ 46.3