Stock Transactions And Stock-Based Compensation (Option Activity Under The Company's Stock Plans) (Details) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Apr. 01, 2016 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding as of December 31, 2015, Options | shares	20.1
Granted, Options | shares	3.7
Exercised, Options | shares	(1.4)
Cancelled/forfeited, Options | shares	(0.7)
Outstanding as of April 1, 2016, Options | shares	21.7
Vested and expected to vest as of April 1, 2016, Options | shares	20.9
Vested as of April 1, 2016, Options | shares	10.1
Outstanding as of December 31, 2015, Weighted Average Exercise Price (dollars per share) | $ / shares	$ 57.84
Granted, Weighted Average Exercise Price ((dollars per share) | $ / shares	87.20
Exercised, Weighted Average Exercise Price ((dollars per share) | $ / shares	42.38
Cancelled/forfeited, Weighted Average Exercise Price ((dollars per share) | $ / shares	74.40
Outstanding as of April 1, 2016, Weighted Average Exercise Price ((dollars per share) | $ / shares	63.27
Vested and expected to vest as of April 1, 2016, Weighted Average Exercise Price ((dollars per share) | $ / shares	62.46
Vested as of April 1, 2016, Weighted Average Exercise Price ((dollars per share) | $ / shares	$ 44.94
Outstanding as of April 1, 2016, Weighted Average Remaining Contractual Term (in years)	7 years
Vested and expected to vest as of April 1, 2016, Weighted Average Remaining Contractual Term (in years)	6 years
Vested as of April 1, 2016, Weighted Average Remaining Contractual Term (in years)	4 years
Outstanding as of April 1, 2016, Aggregate Intrinsic Value | $	$ 704.5
Vested and expected to vest as of April 1, 2016, Aggregate Intrinsic Value | $	693.8
Vested as of April 1, 2016, Aggregate Intrinsic Value | $	$ 511.5