EMPLOYEE BENEFIT PLANS AND COLLECTIVE BARGAINING AGREEMENTS - Schedule of Multiemployer Plan (Details) - Pension $ in Millions	12 Months Ended
	Feb. 25, 2023 USD ($) agreement	Feb. 26, 2022 USD ($)	Feb. 27, 2021 USD ($)
Multiemployer Plans [Line Items]
Contributions by company | $	$ 546.5	$ 523.7	$ 524.0
UFCW-Northern California Employers Joint Pension Trust Fund
Multiemployer Plans [Line Items]
Contributions by company | $	$ 135.2	128.1	123.2
Total collective bargaining agreements	85
Most significant collective bargaining agreement	79
Western Conference of Teamsters Pension Plan
Multiemployer Plans [Line Items]
Contributions by company | $	$ 73.5	68.6	66.9
Total collective bargaining agreements	48
Most significant collective bargaining agreement	10
Southern California United Food & Commercial Workers Unions and Food Employers Joint Pension Plan
Multiemployer Plans [Line Items]
Contributions by company | $	$ 141.8	138.4	133.7
Total collective bargaining agreements	46
Most significant collective bargaining agreement	41
Combined Plan
Multiemployer Plans [Line Items]
Contributions by company | $	$ 0.0	0.0	26.6
Total collective bargaining agreements	19
Most significant collective bargaining agreement	15
Sound Retirement Trust
Multiemployer Plans [Line Items]
Contributions by company | $	$ 66.6	61.4	53.8
Total collective bargaining agreements	132
Most significant collective bargaining agreement	27
Bakery and Confectionery Union and Industry International Pension Fund
Multiemployer Plans [Line Items]
Contributions by company | $	$ 18.3	18.2	18.7
Total collective bargaining agreements	110
Most significant collective bargaining agreement	34
UFCW Union and Participating Food Industry Employers Tri-State Pension Fund
Multiemployer Plans [Line Items]
Contributions by company | $	$ 11.5	12.0	12.0
Total collective bargaining agreements	6
Most significant collective bargaining agreement	2
Rocky Mountain UFCW Unions & Employers Pension Plan
Multiemployer Plans [Line Items]
Contributions by company | $	$ 17.2	15.7	15.5
Total collective bargaining agreements	85
Most significant collective bargaining agreement	27
UFCW Local 152 Retail Meat Pension Fund
Multiemployer Plans [Line Items]
Contributions by company | $	$ 11.4	11.6	11.1
Total collective bargaining agreements	4
Most significant collective bargaining agreement	4
Desert States Employers & UFCW Unions Pension Plan
Multiemployer Plans [Line Items]
Contributions by company | $	$ 10.8	11.6	8.9
Total collective bargaining agreements	17
Most significant collective bargaining agreement	15
UFCW International Union - Industry Pension Fund
Multiemployer Plans [Line Items]
Contributions by company | $	$ 0.0	0.0	4.6
Total collective bargaining agreements	28
Most significant collective bargaining agreement	7
Retail Food Employers and UFCW Local 711 Pension Trust Fund
Multiemployer Plans [Line Items]
Contributions by company | $	$ 9.0	8.6	8.6
Total collective bargaining agreements	7
Most significant collective bargaining agreement	4
Oregon Retail Employees Pension Trust
Multiemployer Plans [Line Items]
Contributions by company | $	$ 12.1	12.0	10.0
Total collective bargaining agreements	134
Most significant collective bargaining agreement	35
Intermountain Retail Store Employees Pension Trust
Multiemployer Plans [Line Items]
Contributions by company | $	$ 8.0	7.9	6.9
Total collective bargaining agreements	54
Most significant collective bargaining agreement	18
UFCW Local 1245 Labor Management Pension Plan
Multiemployer Plans [Line Items]
Contributions by company | $	$ 5.7	4.8	2.7
Total collective bargaining agreements	4
Most significant collective bargaining agreement	2
Other funds
Multiemployer Plans [Line Items]
Contributions by company | $	$ 25.4	$ 24.8	$ 20.8