Stock Transactions And Stock-Based Compensation (Components Of Stock-Based Compensation Program) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 03, 2015	Jun. 27, 2014	Jul. 03, 2015	Jun. 27, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax compensation expense	$ 29.4	$ 26.0	$ 60.8	$ 55.0
Income tax benefit	(10.2)	(7.3)	(19.7)	(15.9)
Stock-based compensation expense, net of income taxes	19.2	18.7	41.1	39.1
RSUs/PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax compensation expense	18.7	15.9	38.1	33.8
Income tax benefit	(6.5)	(4.4)	(12.4)	(9.6)
Stock-based compensation expense, net of income taxes	12.2	11.5	25.7	24.2
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax compensation expense	10.7	10.1	22.7	21.2
Income tax benefit	(3.7)	(2.9)	(7.3)	(6.3)
Stock-based compensation expense, net of income taxes	$ 7.0	$ 7.2	$ 15.4	$ 14.9