DEBT Debt Extinguishments (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				12 Months Ended
	Oct. 28, 2012	Jan. 29, 2012	Oct. 30, 2011	Jul. 31, 2011	Apr. 28, 2013	Apr. 29, 2012	May 01, 2011
Extinguishment of Debt [Line Items]
Loss on debt extinguishment	$ 120.7	$ 4.6	$ 6.4	$ 1.2	$ 120.7	$ 12.2	$ 92.5
Senior Unsecured Notes, Seven Percent, Due August 2011 [Member]
Extinguishment of Debt [Line Items]
Extinguishment of Debt, Amount						77.8	522.2
Extinguishment of Debt, Reacquisition Price							543.1
Loss on debt extinguishment							21.4
Senior Secured Notes, Ten Percent, Due July 2014, Including Discounts [Member]
Extinguishment of Debt [Line Items]
Extinguishment of Debt, Amount						59.7
Extinguishment of Debt, Reacquisition Price						68.3
Loss on debt extinguishment						11.0
January 2011 Tender Offer [Member]
Extinguishment of Debt [Line Items]
Extinguishment of Debt, Reacquisition Price							450.0
Loss on debt extinguishment							71.1
January 2011 Tender Offer [Member] | Senior Unsecured Notes, Seven Point Seven Five Percent, Due May 2013 [Member]
Extinguishment of Debt [Line Items]
Extinguishment of Debt, Amount							190.0
January 2011 Tender Offer [Member] | Senior Secured Notes, Ten Percent, Due July 2014, Including Discounts [Member]
Extinguishment of Debt [Line Items]
Extinguishment of Debt, Amount							200.9
July 2012 Tender Offer [Member]
Extinguishment of Debt [Line Items]
Extinguishment of Debt, Reacquisition Price					649.4
July 2012 Tender Offer [Member] | Senior Unsecured Notes, Seven Point Seven Five Percent, Due May 2013 [Member]
Extinguishment of Debt [Line Items]
Extinguishment of Debt, Amount					105.0
July 2012 Tender Offer [Member] | Senior Secured Notes, Ten Percent, Due July 2014 [Member]
Extinguishment of Debt [Line Items]
Extinguishment of Debt, Amount					456.6
Repayment of Debt [Member] | Senior Secured Notes, Ten Percent, Due July 2014 [Member]
Extinguishment of Debt [Line Items]
Extinguishment of Debt, Amount					132.8
Extinguishment of Debt, Reacquisition Price					$ 155.5