Stock Transactions And Stock-Based Compensation (Option Activity Under The Company's Stock Plans) (Details) $ / shares in Units, shares in Millions, $ in Millions	6 Months Ended
	Jul. 01, 2016 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding at beginning of period, options | shares	20.1
Granted, options | shares	3.9
Exercised, options | shares	(3.2)
Cancelled/forfeited, options | shares	(0.9)
Outstanding at end of period, 2016, options | shares	19.9
Vested and expected to vest as of July 1, 2016, options | shares	19.1
Vested as of July 1, 2016, options | shares	8.4
Outstanding at beginning of period, weighted average exercise price (dollars per share) | $ / shares	$ 57.84
Granted, weighted average exercise price (dollars per share) | $ / shares	87.71
Exercised, weighted average exercise price (dollars per share) | $ / shares	44.05
Cancelled/forfeited, weighted average exercise price (dollars per share) | $ / shares	70.37
Outstanding at end of period, weighted average exercise price (dollars per share) | $ / shares	65.27
Vested and expected to vest as of July 1, 2016, weighted average exercise price (dollars per share) | $ / shares	64.53
Vested as of July 1, 2016, weighted average exercise price (dollars per share) | $ / shares	$ 45.69
Outstanding as of July 1, 2016, weighted average remaining contractual term (in years)	7 years
Vested and expected to vest as of July 1, 2016, weighted average remaining contractual term (in years)	7 years
Vested as of July 1, 2016, weighted average remaining contractual term (in years)	4 years
Outstanding as of July 1, 2016, aggregate intrinsic value | $	$ 735.7
Vested and expected to vest as of July 1, 2016, aggregate intrinsic value | $	722.1
Vested as of July 1, 2016, aggregate intrinsic value | $	$ 473.7