Stock Transactions And Stock-Based Compensation (Components Of Stock-Based Compensation Program) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 27, 2014	Jun. 28, 2013	Jun. 27, 2014	Jun. 28, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax compensation expense	$ 26.0	$ 28.3	$ 55.0	$ 56.1
Income tax benefit	(7.3)	(8.7)	(15.9)	(17.1)
Stock-based compensation expense, net of income taxes	18.7	19.6	39.1	39.0
RSUs:
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax compensation expense	15.9	16.8	33.8	32.3
Income tax benefit	(4.4)	(5.2)	(9.6)	(9.8)
Stock-based compensation expense, net of income taxes	11.5	11.6	24.2	22.5
Stock options:
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax compensation expense	10.1	11.5	21.2	23.8
Income tax benefit	(2.9)	(3.5)	(6.3)	(7.3)
Stock-based compensation expense, net of income taxes	$ 7.2	$ 8.0	$ 14.9	$ 16.5