Unearned Revenue - Additional Information (Detail) - USD ($) $ in Millions	6 Months Ended
	Dec. 31, 2017	Jun. 30, 2017	Jul. 01, 2016
Revenue Recognition And Deferred Revenue [Abstract]
Unearned revenue	$ 23,809	$ 26,656	$ 22,200
Revenue allocated to remaining performance obligations	$ 61,000
Revenue allocated to remaining performance obligations, percentage of revenue expected to be recognized over the next 12 months	60.00%
Revenue allocated to remaining performance obligations, expected timing of satisfaction	we expect to recognize approximately 60% of the revenue over the next 12 months and the remainder thereafter.