DEBT Debt Extinguishments (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended		5 Months Ended
	Mar. 29, 2015	Dec. 29, 2013	Apr. 28, 2013	Apr. 29, 2012	Sep. 26, 2013
Extinguishment of Debt [Line Items]
Extinguishment of Debt, Amount	$ 258.0
Extinguishment of Debt, Reacquisition Price	275.0	18.1
Loss on debt extinguishment		1.7	120.7
Senior Unsecured Notes, Seven Percent, Due August 2011
Extinguishment of Debt [Line Items]
Extinguishment of Debt, Amount				77.8
Senior Unsecured Notes, Seven Point Seven Five Percent, Due May 2013
Extinguishment of Debt [Line Items]
Extinguishment of Debt, Amount					55.0
Senior Secured Notes, Ten Percent, Due July 2014, Including Discounts
Extinguishment of Debt [Line Items]
Extinguishment of Debt, Amount				59.7
Extinguishment of Debt, Reacquisition Price				68.3
Loss on debt extinguishment				11.0
Senior Unsecured Notes, Seven Point Seven Five Percent, Due July 2017
Extinguishment of Debt [Line Items]
Extinguishment of Debt, Amount		15.6
Senior Unsecured Notes, Six Point Six Two Five Percent, Due August 2022
Extinguishment of Debt [Line Items]
Extinguishment of Debt, Amount		0.4
Bank of America Term Loan
Extinguishment of Debt [Line Items]
Extinguishment of Debt, Amount		200.0
July 2012 Tender Offer
Extinguishment of Debt [Line Items]
Extinguishment of Debt, Reacquisition Price			649.4
July 2012 Tender Offer | Senior Unsecured Notes, Seven Point Seven Five Percent, Due May 2013
Extinguishment of Debt [Line Items]
Extinguishment of Debt, Amount			105.0
July 2012 Tender Offer | Senior Secured Notes, Ten Percent, Due July 2014
Extinguishment of Debt [Line Items]
Extinguishment of Debt, Amount			456.6
Secured Debt
Extinguishment of Debt [Line Items]
Loss on debt extinguishment	12.1
Secured Debt | Senior Secured Notes, Ten Percent, Due July 2014
Extinguishment of Debt [Line Items]
Extinguishment of Debt, Amount			132.8
Extinguishment of Debt, Reacquisition Price			$ 155.5