Revenues - Summary of Deferred Revenue from Contract with Customers (Parenthetical) (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Deferred Revenue Arrangement [Line Items]
Recognition of deferred revenue	$ 807	$ 883	$ 2,398	$ 2,300
News America Marketing [Member]
Deferred Revenue Arrangement [Line Items]
Discontinued Operation, Deferred Revenue	46		46
Deferred Revenue [Member]
Deferred Revenue Arrangement [Line Items]
Recognition of deferred revenue	$ 226	$ 241	$ 371	$ 461