Earnings (Loss) Per Share - Computation of Basic and Diluted Earnings (Loss) per Share (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Earnings Per Share [Abstract]
Net income (loss)	$ 23	$ (1,110)	$ 270	$ (1,089)
Less: Net income attributable to noncontrolling interests	(13)	(18)	(64)	(54)
Less: Redeemable preferred stock dividends	0	0	0	(1)
Net income (loss) available to News Corporation stockholders	$ 10	$ (1,128)	$ 206	$ (1,144)
Weighted-average number of shares of common stock outstanding—basic	585.0	582.8	584.6	582.6
Dilutive effect of equity awards	3.8		2.6
Weighted-average number of shares of common stock outstanding—diluted	588.8	582.8	587.2	582.6
Net income (loss) available to News Corporation stockholders per share - basic and diluted	$ 0.02	$ (1.94)	$ 0.35	$ (1.96)