Stock-Based Compensation (Schedule Of Stock Option Activity) (Details) - Jun. 30, 2015 - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	Total
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Options, Outstanding, Beginning Balance	4,920
Options, Granted	2
Options, Exercised	(985)
Options, Forfeited, cancelled or expired	(49)
Options, Outstanding, Ending Balance	3,888
Options, Vested and expected to vest	3,648
Options, Exercisable	2,456
Weighted-average exercise price of options outstanding, beginning balance	$ 37.44
Weighted-average exercise price of options granted during period	59.33
Weighted-average exercise price of options exercised during the period	45.79
Weighted-average exercise price of options forfeited, cancelled or expired during the period	35.41
Weighted-average exercise price of options outstanding, ending balance	35.35
Weighted-average exercise price of options vested and expected to vest	35.61
Weighted-average exercise price of options exercisable	$ 37.59
Weighted-average remaining contractual term of options outstanding	5 years 10 months 3 days
Weighted-average remaining contractual term of options vested and expected to vest	5 years 7 months 25 days
Weighted-average remaining contractual term of options exercisable	4 years 2 months 5 days
Aggregate intrinsic value of options outstanding	$ 126
Aggregate intrinsic value of options vested and expected to vest	117
Aggregate intrinsic value of options exercisable	$ 74