CONTINGENCIES (Details) $ in Millions	3 Months Ended	12 Months Ended
	Aug. 25, 2024 USD ($) installment	May 26, 2024 USD ($)
CONTINGENCIES
Threshold amount for Environmental Matters	$ 1.0
Insurance Settlements Receivable	9.7	$ 14.7
Loss contingency		3.1
Punitive damages		4.0
Threatened Litigation
CONTINGENCIES
Loss contingency accrual	68.6	76.3
Other accrued liabilities | Threatened Litigation
CONTINGENCIES
Loss contingency accrual	32.5	30.4
Other noncurrent liabilities | Threatened Litigation
CONTINGENCIES
Loss contingency accrual	36.1	45.9
Accounts Receivable
CONTINGENCIES
Insurance Settlements Receivable	4.7	7.1
Noncurrent Assets
CONTINGENCIES
Insurance Settlements Receivable	5.0	7.6
Beatrice
CONTINGENCIES
Accrual for environmental loss contingencies	39.0	39.3
Beatrice | Other accrued liabilities
CONTINGENCIES
Accrual for environmental loss contingencies	$ 3.2	$ 3.3
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration]	Other Accrued Liabilities, Current	Other Accrued Liabilities, Current
Beatrice | Other noncurrent liabilities
CONTINGENCIES
Accrual for environmental loss contingencies	$ 35.8	$ 36.0
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration]	Other Liabilities, Noncurrent	Other Liabilities, Noncurrent
CALIFORNIA | Beatrice
CONTINGENCIES
Litigation settlement amount	$ 101.7
Loss contingency settlement agreement terms number of installments | installment	7
Loss contingency accrual payments	$ 73.0
Loss contingency accrual	28.7	$ 28.9
CALIFORNIA | Beatrice | Other accrued liabilities
CONTINGENCIES
Loss contingency accrual	12.0	11.8
CALIFORNIA | Beatrice | Other noncurrent liabilities
CONTINGENCIES
Loss contingency accrual	16.7	$ 17.1
CALIFORNIA | Beatrice | Maximum
CONTINGENCIES
Litigation settlement amount of guarantee	$ 15.0