COST SAVINGS PROGRAM AND RESTRUCTURING - Summary of the Pre-Tax Costs (Details) - USD ($) $ in Millions	3 Months Ended
	Aug. 30, 2026	Aug. 24, 2025
Restructuring Cost and Reserve [Line Items]
Net restructuring charges	$ 34.2	$ 31.9
Cost Savings Program and Restructuring expenses	14.1	32.3
Restructuring Plan And Cost Savings Program
Restructuring Cost and Reserve [Line Items]
Net restructuring charges	34.2	31.9
Cost Savings Program and Restructuring expenses	34.2	31.9
Retirement of assets and other plant charges \| Restructuring Plan And Cost Savings Program
Restructuring Cost and Reserve [Line Items]
Net restructuring charges	6.9	1.8
Accelerated depreciation \| Restructuring Plan And Cost Savings Program
Restructuring Cost and Reserve [Line Items]
Net restructuring charges	21.3	0.0
Potato contract terminations \| Restructuring Plan And Cost Savings Program
Restructuring Cost and Reserve [Line Items]
Net restructuring charges	(1.3)	0.0
Inventory write-off \| Restructuring Plan And Cost Savings Program
Restructuring Cost and Reserve [Line Items]
Net restructuring charges	0.1	0.0
Employee related costs \| Restructuring Plan And Cost Savings Program
Restructuring Cost and Reserve [Line Items]
Net restructuring charges	2.3	8.1
Professional services and other \| Restructuring Plan And Cost Savings Program
Restructuring Cost and Reserve [Line Items]
Net restructuring charges	$ 4.9	$ 22.0