Revenues - Summary of Deferred Revenue from Contract with Customers (Detail) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Contract with Customer, Liability [Roll Forward]
Balance, beginning of period	$ 398	$ 428
Deferral of revenue	707	821
Recognition of deferred revenue	(701)	(794)
Other	5	(7)
Balance, end of period	409	448
Deferred Revenue
Contract with Customer, Liability [Roll Forward]
Recognition of deferred revenue	$ (257)	$ (266)