FAIR VALUE MEASUREMENTS Schedule of Level 3 Change, Pension Plan Assets (Details) (Fair Value, Inputs, Level 3, USD $) In Millions, unless otherwise specified	8 Months Ended	12 Months Ended
	Dec. 29, 2013	Dec. 28, 2014	Apr. 28, 2013
Insurance Contracts
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets, Excluding Unsettled Transactions	$ 1.1		$ 1.2
Defined Benefit Plan, Actual Return on Plan Assets Still Held	0	0
Defined Benefit Plan, Actual Return on Plan Assets Sold During Period	0	0
Defined Benefit Plan, Purchases, Sales, and Settlements	(0.1)	(0.2)
Limited Partnerships
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets, Excluding Unsettled Transactions	37.8		40.1
Defined Benefit Plan, Actual Return on Plan Assets Still Held	(10.4)	(10.3)
Defined Benefit Plan, Actual Return on Plan Assets Sold During Period	4.0	6.0
Defined Benefit Plan, Purchases, Sales, and Settlements	$ 4.1	$ 2.9