Goodwill And Other Intangible Assets (Narrative) (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 29, 2012	Oct. 01, 2011	Sep. 29, 2012	Oct. 01, 2011
Finite And Indefinite Lived Intangible Assets [Line Items]
Intangible asset amortization expense	$ 20.4	$ 17.0	$ 53.5	$ 51.7
Future amortization expense, in 2012	72.1		72.1
Future amortization expense, in 2013	71.9		71.9
Future amortization expense, in 2014	69.9		69.9
Future amortization expense, in 2015	68.0		68.0
Future amortization expense, in 2016	$ 66.4		$ 66.4
Minimum [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Intangible assets, useful life, maximum (years)			3 years
Maximum [Member]
Finite And Indefinite Lived Intangible Assets [Line Items]
Intangible assets, useful life, maximum (years)			22 years