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Income Taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 02, 2011	Jul. 03, 2010	Jul. 02, 2011	Jul. 03, 2010
Income Taxes [Line Items]
Income taxes (benefit) on continuing operations	$ 27.9	$ (37.0)	$ 51.0	$ (35.5)
Effective tax rate	12.40%	397.80%	12.50%	36.30%
Tax benefits attributable to favorable settlement of certain tax contingencies	48.5	35.7	69.9	35.7
Anticipated tax costs related to ongoing operational and legal entity integrations	$ 17.5

- Definition

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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- Definition

The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

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