Earnings Per Share - Computation of Basic and Diluted Earnings (Loss) per Share (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Earnings Per Share [Abstract]
Net income	$ 128	$ 87
Less: Net income attributable to noncontrolling interests	(27)	(19)
Net income available to News Corporation stockholders	$ 101	$ 68
Weighted-average number of shares of common stock outstanding - basic	583.9	582.3
Dilutive effect of equity awards	1.7	1.1
Weighted-average number of shares of common stock outstanding - diluted	585.6	583.4
Net income available to News Corporation stockholders per share - basic	$ 0.17	$ 0.12
Net income available to News Corporation stockholders per share - diluted	$ 0.17	$ 0.12