Summary of Significant Accounting Policies Property Plant and Equipment (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 30, 2011	Dec. 31, 2010
Other Income [Member]
Foreign Currency Transaction Gain (Loss), before Tax [Abstract]
Foreign currency transaction gain (loss), before tax	$ 4.9	$ (13.0)	$ (3.7)
Minimum [Member]
Foreign Currency Transaction Gain (Loss), before Tax [Abstract]
Fiscal Year Duration	52 weeks	52 weeks
Maximum [Member]
Foreign Currency Transaction Gain (Loss), before Tax [Abstract]
Fiscal Year Duration	53 weeks		53 weeks
Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	3 years
Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	37 years
Building [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	10 years
Building [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	25 years