Balance Sheet Accounts (Narratives) (Details)	6 Months Ended
	Dec. 31, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Standard hardware warranty period (in months)	12 months
Standard software warranty period (in days)	90 days
Limited lifetime hardware warranty maximum period after end of sale of product (in years)	5 years
Maximum investment in one obligor or maker (percent)	10.00%