Property, Plant and Equipment (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 30, 2012	Apr. 01, 2011
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 23.8	$ 24.0
Building [Member]
Property, Plant and Equipment [Line Items]
Useful life, minimum	15
Useful life, maximum	50
Machinery, Equipment and Office Furnishings [Member]
Property, Plant and Equipment [Line Items]
Useful life, minimum	2
Useful life, maximum	15