Commitments And Contingencies (Narrative) (Details) - Jun. 30, 2015 - USD ($) $ in Millions	Total
Commitments And Contingencies [Abstract]
Limited warranty on most hardware products (in number of years)	1 year
Amount of non-cancelable purchase commitments with various suppliers of customized inventory and inventory components	$ 7
Amount of guarantees for payment of customs and foreign grants	$ 4