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Financing Arrangements (Carrying Value Of Convertible Debt) (Details) (USD $)
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Jan. 27, 2012
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Apr. 29, 2011
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Jun. 10, 2008
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| Debt Instrument [Line Items] | |||
| Net long-term carrying amount of Notes | $ 1,188,800,000 | $ 0 | |
| Net current carrying amount of Notes | 0 | 1,150,400,000 | |
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Convertible Senior Notes 1.75% [Member]
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| Debt Instrument [Line Items] | |||
| 1.75% Convertible Senior Notes Due 2013 | 1,265,000,000 | 1,265,000,000 | 1,265,000,000 |
| Less: Unamortized discount | (76,200,000) | (114,600,000) | |
| Net long-term carrying amount of Notes | 1,188,800,000 | ||
| Net current carrying amount of Notes | $ 1,150,400,000 |
| X | ||||||||||
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- Definition
The portion of the carrying value of long-term convertible debt as of the balance sheet date that is scheduled to be repaid within one year or in the normal operating cycle if longer. Convertible debt is a financial instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Carrying amount of long-term convertible debt as of the balance sheet date, net of the amount due in the next twelve months or greater than the normal operating cycle, if longer. The debt is convertible into another form of financial instrument, typically the entity's common stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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