PENSION AND OTHER RETIREMENT PLANS Schedule of Pension Benefit Obligation, Plan Assets and Funded Status (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	5 Months Ended	8 Months Ended	12 Months Ended
	Dec. 29, 2013	Sep. 26, 2013	Dec. 29, 2013	Apr. 28, 2013	Apr. 29, 2012	May 01, 2011
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation	$ 1,653.0		$ 1,653.0	$ 1,813.2	$ 1,610.6	$ 1,329.9
Service cost			32.4	47.2	37.4
Interest cost			54.4	74.8	75.9
Benefits paid	(39.4)	(27.2)	(66.6)	(65.9)	(63.2)
Remeasurement at the Merger Date			(189.8)	0	0
Actuarial loss			9.2	146.1	229.1
Other			0.2	0.4	1.5
Funded status	(530.2)		(530.2)	(702.6)	(587.1)
Amounts recognized in the consolidated balance sheet:
Net long-term pension liability	(504.4)		(504.4)	(697.0)	(581.9)
Accrued expenses and other current liabilities	(25.8)		(25.8)	(5.6)	(5.2)
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets, Aggregate Accumulated Benefit Obligation	530.2		530.2	702.6	587.1
Pension Plan, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefits paid	(16.1)	(26.0)	(42.1)	(62.0)	(59.7)
Fair value of plan assets	1,122.8		1,122.8	1,110.6	1,023.5	956.4
Actual return on plan assets			34.7	131.5	(16.0)
Employer contributions			18.8	17.7	142.8
Other			(0.8)	(0.1)	0
Supplemental Employee Retirement Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Benefits paid	(23.3)	(1.2)		(3.9)	(3.5)
Fair value of plan assets	124.1		124.1	121.0	107.1
Employer contributions			$ 0	$ 0	$ 0