Revenues - Summary of Deferred Revenue from Contract with Customers (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Contract with Customer, Liability [Roll Forward]
Balance, beginning of period	$ 428	$ 510
Deferral of revenue	3,091	3,008
Recognition of deferred revenue	(3,064)	(3,084)
Other	(57)	(6)
Balance, end of period	398	428
Disaggregation of Revenue [Line Items]
Recognition of deferred revenue	3,064	3,084
Deferred Revenue
Contract with Customer, Liability [Roll Forward]
Recognition of deferred revenue	(384)	(493)
Disaggregation of Revenue [Line Items]
Recognition of deferred revenue	384	$ 493
News America Marketing
Disaggregation of Revenue [Line Items]
Deferred revenue disposed of	$ 51