LONG-TERM DEBT AND FINANCE LEASE OBLIGATIONS - Senior Unsecured, Safeway Notes and NALP Notes (Details) - USD ($)								12 Months Ended
	Nov. 01, 2021	Jan. 04, 2021	Sep. 16, 2020	Sep. 11, 2020	Aug. 31, 2020	Aug. 15, 2020	May 24, 2019	Feb. 26, 2022	Feb. 27, 2021	Feb. 29, 2020	Dec. 01, 2021	Dec. 22, 2020	Feb. 05, 2020	Nov. 22, 2019	Aug. 15, 2019
Debt Instrument [Line Items]
Make-whole premium in debt extinguishment								$ 2,900,000	$ 71,600,000	$ 0
Loss on debt extinguishment								3,700,000	85,300,000	111,400,000
Repayments of long-term debt								330,900,000	4,446,700,000	5,676,600,000
ABL Facility, senior secured and unsecured notes, term loans and debentures								$ 400,000,000.0	$ 463,400,000	565,300,000
Notes payable | Safeway Notes Repurchase
Debt Instrument [Line Items]
Loss on debt extinguishment							$ 500,000
Par value of note repurchased							34,100,000
Book value of debt							33,300,000
Repayments of long-term debt							32,600,000
ABL Facility, senior secured and unsecured notes, term loans and debentures							700,000
Notes payable | Safeway Notes Maturity 2020
Debt Instrument [Line Items]
Stated interest rate						3.95%
Amount of debt extinguished						$ 136,800,000
Notes payable | Senior Unsecured Notes Due 2021 4.75 Percentage
Debt Instrument [Line Items]
Face amount of debt instrument											$ 130,000,000
Notes payable | NALP Notes Tender
Debt Instrument [Line Items]
Loss on debt extinguishment							19,100,000
Par value of note repurchased							402,900,000
Book value of debt							363,700,000
ABL Facility, senior secured and unsecured notes, term loans and debentures							8,200,000
Repurchase amount of debt							$ 382,700,000
Notes payable | NALP Notes Repurchase 2019
Debt Instrument [Line Items]
Loss on debt extinguishment										46,200,000
Par value of note repurchased										553,900,000
Book value of debt										502,000,000
ABL Facility, senior secured and unsecured notes, term loans and debentures										11,300,000
Repurchase amount of debt										$ 547,500,000
Senior notes
Debt Instrument [Line Items]
Cash													$ 18,000,000
Amount of debt extinguished		$ 230,000,000		$ 60,000,000
Make-whole premium in debt extinguishment			$ 7,200,000		$ 41,400,000
Loss on debt extinguishment			8,600,000		49,100,000
Write off of deferred financing costs on previous loans			1,400,000		7,700,000
Senior notes | Senior Unsecured Notes, Maturity 2026
Debt Instrument [Line Items]
Face amount of debt instrument	$ 600,000,000				$ 750,000,000										$ 750,000,000
Stated interest rate	7.50%				3.25%										5.875%
Senior notes | Senior Unsecured Notes, Maturity 2027
Debt Instrument [Line Items]
Face amount of debt instrument													600,000,000	$ 750,000,000
Stated interest rate														4.625%
Senior notes | Senior Unsecured Notes, Maturity 2023
Debt Instrument [Line Items]
Face amount of debt instrument													$ 750,000,000
Stated interest rate													3.50%
Senior notes | Senior Unsecured Notes, Maturity 2030
Debt Instrument [Line Items]
Face amount of debt instrument													$ 1,000,000,000
Stated interest rate													4.875%
Senior notes | Senior Unsecured Notes Maturity 2029
Debt Instrument [Line Items]
Face amount of debt instrument					$ 750,000,000							$ 600,000,000
Stated interest rate					3.50%
Senior notes | Senior Unsecured Notes, Maturity 2024
Debt Instrument [Line Items]
Face amount of debt instrument				$ 1,250,000,000
Stated interest rate				6.625%
Senior notes | Senior Unsecured Notes, Maturity 2025
Debt Instrument [Line Items]
Face amount of debt instrument	$ 200,000,000	1,000,000,000	$ 1,250,000,000
Stated interest rate			5.75%
Amount of debt extinguished		800,000,000	$ 250,000,000
Make-whole premium in debt extinguishment		23,000,000
Loss on debt extinguishment	3,700,000	27,600,000
Write off of deferred financing costs on previous loans	$ 800,000	$ 4,600,000
Redemption price, percentage	101.438%
Redemption premium	$ 2,900,000
Senior notes | Notes payable | Senior Unsecured Notes Due 2021 4.75 Percentage
Debt Instrument [Line Items]
Stated interest rate											4.75%