Equity - Summary of Changes in Equity (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Changes In Equity [Line Items]
Balance, beginning of period			$ 11,073	$ 11,782
Net (loss) income	$ (66)	$ (219)	21	(219)
Other comprehensive income (loss)	19	(311)	135	(268)
Dividends			(80)	(77)
Other			9	10
Balance, end of period	11,158	11,228	11,158	11,228
News Corporation Stockholders [Member]
Changes In Equity [Line Items]
Balance, beginning of period			10,789	11,564
Net (loss) income			(15)	(304)
Other comprehensive income (loss)			132	(261)
Dividends			(59)	(59)
Other			13	15
Balance, end of period	10,860	10,955	10,860	10,955
Noncontrolling Interests [Member]
Changes In Equity [Line Items]
Balance, beginning of period			284	218
Net (loss) income			36	85
Other comprehensive income (loss)			3	(7)
Dividends			(21)	(18)
Other			(4)	(5)
Balance, end of period	$ 298	$ 273	$ 298	$ 273