Stock Transactions And Stock-Based Compensation (Components Of Stock-Based Compensation Program) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 02, 2015	Sep. 26, 2014	Oct. 02, 2015	Sep. 26, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax compensation expense	$ 42.7	$ 31.9	$ 101.2	$ 83.0
Income tax benefit	(14.8)	(9.7)	(33.9)	(24.4)
Stock-based compensation expense, net of income taxes	27.9	22.2	67.3	58.6
RSUs/PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax compensation expense	29.3	19.9	65.1	51.3
Income tax benefit	(10.5)	(6.0)	(22.3)	(14.9)
Stock-based compensation expense, net of income taxes	18.8	13.9	42.8	36.4
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax compensation expense	13.4	12.0	36.1	31.7
Income tax benefit	(4.3)	(3.7)	(11.6)	(9.5)
Stock-based compensation expense, net of income taxes	$ 9.1	$ 8.3	$ 24.5	$ 22.2