Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis for Each of the Hierarchy Levels (Detail) (USD $) In Millions	Jul. 02, 2011	Jan. 01, 2011
Assets:
Investment in common stock of Niscayah	$ 61.5
Fair Value, Inputs, Level 1 \| Fair Value, Measurements, Recurring
Assets:
Money market fund	1,016.7	716.7
Investment in common stock of Niscayah	61.5
Fair Value, Inputs, Level 2 \| Fair Value, Measurements, Recurring
Assets:
Derivative assets	55.0	55.0
Liabilities:
Derivative liabilities	121.7	115.7
Fair Value, Measurements, Recurring
Assets:
Money market fund	1,016.7	716.7
Investment in common stock of Niscayah	61.5
Derivative assets	55.0	55.0
Liabilities:
Derivative liabilities	$ 121.7	$ 115.7

Fair values as of the balance sheet date of all assets resulting from contracts that meet the criteria of being accounted for as derivative instruments, net of the effects of master netting arrangements.

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Fair values as of the balance sheet date of all liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments, net of the effects of master netting arrangements.

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- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents investments accounted for under the equity method of accounting as of the balance sheet date.

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- Definition

Investment in short-term money-market instruments (such as commercial paper, banker's acceptances, repurchase agreements, government securities, certificates of deposit, and so forth) which are highly liquid (that is, readily convertible to known amounts of cash) and so near their maturity that they present an insignificant risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify as cash equivalents by definition. Original maturity means an original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months.

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