RESTRUCTURING ACTIVITIES (Liabilities for Initiatives and Changes) (Details) (SCAE Plan, USD $) In Millions, unless otherwise specified	12 Months Ended
	May 25, 2014
Restructuring Cost and Reserve [Line Items]
Beginning balance	$ 28.4
Costs incurred and charged to expense	60.5
Costs paid or otherwise settled	(24.8)
Changes in estimates	0
Ending balance	64.1
Multi-employer Pension Cost
Restructuring Cost and Reserve [Line Items]
Beginning balance	11.2
Costs incurred and charged to expense	0
Costs paid or otherwise settled	0
Changes in estimates	0
Ending balance	11.2
Severance and Related Costs
Restructuring Cost and Reserve [Line Items]
Beginning balance	17.2
Costs incurred and charged to expense	51.8
Costs paid or otherwise settled	(22.1)
Changes in estimates	0
Ending balance	46.9
Other costs [Member]
Restructuring Cost and Reserve [Line Items]
Beginning balance	0
Costs incurred and charged to expense	8.7
Costs paid or otherwise settled	(2.7)
Changes in estimates	0
Ending balance	$ 6.0