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Financial Instruments and Derivatives Instruments (Details 3) (USD $) In Millions, unless otherwise specified	Jul. 03, 2011	Dec. 31, 2010
Long-term debt
Carrying amount	$ 475.9	$ 378.7
Estimated fair value	$ 511.3	$ 407.5
5.47% senior notes due 2013
Senior notes
Interest rate (as a percent)	5.47%
5.85% senior notes due 2016
Senior notes
Interest rate (as a percent)	5.85%
5.05% senior notes due 2020
Senior notes
Interest rate (as a percent)	5.05%

Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date before deducting unamortized discount or premiums (if any). May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer.

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