Debt Convertible Debt (Details) (USD $) In Millions	6 Months Ended
Jul. 02, 2011	Jul. 03, 2010
Extinguishment Of Debt [Line Items]
Cash paid upon settlement of convertible debt	$ 452.0	$ 600.8
3.25% Senior Subordinated Convertible Notes Due 2024 [Member]
Extinguishment Of Debt [Line Items]
Extinguishment Of Debt Amount	329
Cash paid upon settlement of convertible debt	$ 452.0

The cash outflow from the repayment of debt 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
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 18

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 20
-Subparagraph b

Name:	us-gaap_RepaymentsOfConvertibleDebt
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration