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								12 Months Ended
		Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Earnings Per Share [Abstract]
Net income (loss)		$ (42)	$ 23	$ 119	$ 128	$ (355)	$ (1,110)	$ (66)	$ 87	$ 228	$ (1,444)	$ (643)
Less: Net income attributable to noncontrolling interests										(73)	(70)	(95)
Less: Redeemable preferred stock dividends	[1]									0	(2)	(2)
Net (loss) income available to News Corporation stockholders										$ 155	$ (1,516)	$ (740)
Weighted-average number of shares of common stock outstanding—basic										584.7	582.7	581.4
Dilutive effect of equity awards	[2]									3.2
Weighted-average number of shares of common stock outstanding—diluted										587.9	582.7	581.4
Net income (loss) available to News Corporation stockholders per share—basic										$ 0.27	$ (2.60)	$ (1.27)
Net income (loss) available to News Corporation stockholders per share—diluted										$ 0.26	$ (2.60)	$ (1.27)

[1] Refer to Note 10 —Redeemable Preferred Stock.

[2] The dilutive impact of the Company's PSUs, RSUs and stock options has been excluded from the calculation of diluted loss per share for the fiscal years ended June 30, 2018 and 2017 because their inclusion would have an antidilutive effect on the net loss per share.