LONG-TERM DEBT AND FINANCE LEASE OBLIGATIONS - Schedule of Long-term Debt (Details) - USD ($) $ in Millions	Sep. 09, 2023	Feb. 25, 2023
Debt Instrument [Line Items]
Finance lease obligations	$ 498.0	$ 517.1
Total debt	8,449.6	8,910.1
Less current maturities	(638.8)	(1,075.7)
Long-term portion	7,810.8	7,834.4
Senior Unsecured Notes due 2026 to 2030, interest rate range of 3.25% to 7.50% \| Senior Notes
Debt Instrument [Line Items]
Long-term debt, gross	$ 6,501.7	6,496.4
Senior Unsecured Notes due 2026 to 2030, interest rate range of 3.25% to 7.50% \| Senior Notes \| Minimum
Debt Instrument [Line Items]
Stated interest rate percentage	3.25%
Senior Unsecured Notes due 2026 to 2030, interest rate range of 3.25% to 7.50% \| Senior Notes \| Maximum
Debt Instrument [Line Items]
Stated interest rate percentage	7.50%
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	$ 375.2	374.9
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%
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	$ 478.3	476.2
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%
ABL Facility \| Line of Credit
Debt Instrument [Line Items]
Long-term debt, gross	$ 550.0	1,000.0
Other financing obligations
Debt Instrument [Line Items]
Long-term debt, gross	29.9	28.8
Mortgage notes payable, secured \| Mortgage Notes Payable
Debt Instrument [Line Items]
Long-term debt, gross	$ 16.5	$ 16.7

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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