RESTRUCTURING ACTIVITIES (Narrative) (Details) $ in Millions	3 Months Ended		6 Months Ended
	Nov. 29, 2015 USD ($) building	Nov. 23, 2014 USD ($)	Nov. 29, 2015 USD ($) building	Nov. 23, 2014 USD ($)
Private Brands
Restructuring Cost and Reserve [Line Items]
Recognized charges	$ 6.2		$ 10.2
Incurred cash outflows from plan inception	83.3		83.3
Incurred non-cash charges from plan inception	45.4		45.4
Pre-tax expenses from plan inception	128.7		128.7
SCAE Plan
Restructuring Cost and Reserve [Line Items]
Approved expenses (up to)	739.0		739.0
Expected charges	472.9		472.9
Cash charges incurred or expect to incur from plan inception	376.5		376.5
Non-cash charges incurred or expect to incur from plan inception	96.4		96.4
Recognized charges	133.0	$ 10.3	150.4	$ 26.0
Expected cash outflows	78.7		92.0
Expected non-cash charges	$ 54.3		$ 58.4
Number of buildings | building	2		2
Charge for early termination of leases	$ 48.5
Financing lease obligation	62.2		$ 62.2
Incurred cash outflows from plan inception	145.1		145.1
Incurred non-cash charges from plan inception	$ 84.3		$ 84.3