Stock Transactions And Stock-Based Compensation (Components Of Stock-Based Compensation Program) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Apr. 03, 2015	Mar. 28, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax compensation expense	$ 31.4	$ 29.0
Income tax benefit	(9.5)	(8.6)
Stock-based compensation expense, net of income taxes	21.9	20.4
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax compensation expense	19.4	17.9
Income tax benefit	(5.9)	(5.2)
Stock-based compensation expense, net of income taxes	13.5	12.7
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax compensation expense	12.0	11.1
Income tax benefit	(3.6)	(3.4)
Stock-based compensation expense, net of income taxes	$ 8.4	$ 7.7