Stock Transactions And Stock-Based Compensation (Components Of Stock-Based Compensation Program) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Oct. 02, 2015	Sep. 30, 2016	Oct. 02, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pretax compensation expense	$ 31.4	$ 33.3	$ 96.3	$ 76.9
Income tax benefit	(9.4)	(11.7)	(28.8)	(25.6)
Stock-based compensation expense, net of income taxes	22.0	21.6	67.5	51.3
Restricted stock units (“RSUs”)/performance stock units (“PSUs”)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pretax compensation expense	21.1	23.4	65.0	49.8
Income tax benefit	(6.2)	(8.6)	(19.1)	(17.1)
Stock-based compensation expense, net of income taxes	14.9	14.8	45.9	32.7
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pretax compensation expense	10.3	9.9	31.3	27.1
Income tax benefit	(3.2)	(3.1)	(9.7)	(8.5)
Stock-based compensation expense, net of income taxes	$ 7.1	$ 6.8	$ 21.6	$ 18.6