EMPLOYEE BENEFIT PLANS AND COLLECTIVE BARGAINING AGREEMENTS - Schedule of Plan Assets Allocation (Details) - Pension	Feb. 25, 2023	Feb. 26, 2022
Safeway Plan
Defined Benefit Plan Disclosure [Line Items]
Target (1)	100.00%
Plan Assets	100.00%	100.00%
Safeway Plan | Equity
Defined Benefit Plan Disclosure [Line Items]
Target (1)	75.00%
Plan Assets	74.00%	65.40%
Safeway Plan | Fixed income
Defined Benefit Plan Disclosure [Line Items]
Target (1)	25.00%
Plan Assets	23.70%	32.70%
Safeway Plan | Cash and other
Defined Benefit Plan Disclosure [Line Items]
Target (1)	0.00%
Plan Assets	2.30%	1.90%
Shaw's Plan
Defined Benefit Plan Disclosure [Line Items]
Target (1)	100.00%
Plan Assets	100.00%	100.00%
Shaw's Plan | Equity
Defined Benefit Plan Disclosure [Line Items]
Target (1)	65.00%
Plan Assets	66.40%	60.50%
Shaw's Plan | Fixed income
Defined Benefit Plan Disclosure [Line Items]
Target (1)	35.00%
Plan Assets	32.50%	31.10%
Shaw's Plan | Cash and other
Defined Benefit Plan Disclosure [Line Items]
Target (1)	0.00%
Plan Assets	1.10%	8.40%
United Plan
Defined Benefit Plan Disclosure [Line Items]
Target (1)	100.00%
Plan Assets	100.00%	100.00%
United Plan | Equity
Defined Benefit Plan Disclosure [Line Items]
Target (1)	50.00%
Plan Assets	41.50%	48.10%
United Plan | Equity | Maximum
Defined Benefit Plan Disclosure [Line Items]
Plan Assets	60.00%
United Plan | Equity | Minimum
Defined Benefit Plan Disclosure [Line Items]
Plan Assets	40.00%
United Plan | Fixed income
Defined Benefit Plan Disclosure [Line Items]
Target (1)	50.00%
Plan Assets	54.50%	41.40%
United Plan | Cash and other
Defined Benefit Plan Disclosure [Line Items]
Target (1)	0.00%
Plan Assets	4.00%	10.50%
Safeway VAPP
Defined Benefit Plan Disclosure [Line Items]
Target (1)	100.00%
Plan Assets	100.00%	0.00%
Safeway VAPP | Equity
Defined Benefit Plan Disclosure [Line Items]
Target (1)	20.00%
Plan Assets	0.00%	0.00%
Safeway VAPP | Fixed income
Defined Benefit Plan Disclosure [Line Items]
Target (1)	60.00%
Plan Assets	0.00%	0.00%
Safeway VAPP | Cash and other
Defined Benefit Plan Disclosure [Line Items]
Target (1)	0.00%
Plan Assets	96.60%	0.00%
Safeway VAPP | Other
Defined Benefit Plan Disclosure [Line Items]
Target (1)	20.00%
Plan Assets	3.40%	0.00%