Restructuring And Other Charges (Summary Of Restructuring And Other Charges) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 30, 2012	Apr. 01, 2011
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	$ 106.0	$ 1.0
Severance And Other Termination Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	24.1	1.2
Facility And Other Exit Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	33.0	(0.2)
Accelerated Amortization Of Intangible Assets [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	47.7
Other Obligations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	$ 1.2