LONG-TERM DEBT AND FINANCE LEASE OBLIGATIONS - Schedule of Long-term Debt (Details) - USD ($) $ in Millions	Jun. 19, 2021	Feb. 27, 2021
Debt Instrument [Line Items]
Finance lease obligations	$ 654.9	$ 612.7
Total debt	8,360.1	8,313.6
Less current maturities	(214.3)	(212.4)
Long-term portion	8,145.8	8,101.2
Other financing obligations
Debt Instrument [Line Items]
Long-term debt, gross	29.4	29.4
Senior Notes \| Senior Unsecured Notes due 2023 to 2030, interest rate range of 3.25% to 7.50%
Debt Instrument [Line Items]
Long-term debt, gross	$ 6,683.9	6,680.5
Senior Notes \| Senior Unsecured Notes due 2023 to 2030, interest rate range of 3.25% to 7.50% \| Minimum
Debt Instrument [Line Items]
Stated interest rate percentage	3.25%
Senior Notes \| Senior Unsecured Notes due 2023 to 2030, interest rate range of 3.25% to 7.50% \| Maximum
Debt Instrument [Line Items]
Stated interest rate percentage	7.50%
Notes Payable \| Safeway Inc. Notes due 2021 to 2031, interest rate range of 4.75% to 7.45%
Debt Instrument [Line Items]
Long-term debt, gross	$ 504.2	504.3
Notes Payable \| Safeway Inc. Notes due 2021 to 2031, interest rate range of 4.75% to 7.45% \| Minimum
Debt Instrument [Line Items]
Stated interest rate percentage	4.75%
Notes Payable \| Safeway Inc. Notes due 2021 to 2031, interest rate range of 4.75% to 7.45% \| Maximum
Debt Instrument [Line Items]
Stated interest rate percentage	7.45%
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, gross	$ 470.3	469.1
Notes Payable \| New Albertsons L.P. Notes due 2026 to 2031, interest rate range of 6.52% to 8.70% \| Minimum
Debt Instrument [Line Items]
Stated interest rate percentage	6.52%
Notes Payable \| New Albertsons L.P. Notes due 2026 to 2031, interest rate range of 6.52% to 8.70% \| Maximum
Debt Instrument [Line Items]
Stated interest rate percentage	8.70%
Mortgage Notes Payable \| Mortgage notes payable, secured
Debt Instrument [Line Items]
Long-term debt, gross	$ 17.4	$ 17.6

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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Contractual interest rate for funds borrowed, under the debt agreement.

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Present value of lessee's discounted obligation for lease payments from finance lease.

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