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Depreciation and Amortization Expense Associated with Property, Plant and Equipment (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
Property, Plant and Equipment [Abstract]
Depreciation	$ 210.6	$ 194.4	$ 177.4
Amortization	27.3	34.1	26.0
Depreciation and amortization expense	237.9	228.5	203.4
Depreciation and amortization expense, discontinued operations	$ 21.2	$ 23.8	$ 28.9

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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- Definition

The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.

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