Earnings (Loss) Per Share - Computation of Basic And Diluted Earnings (Loss) Per Share (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Earnings Per Share [Abstract]
Net income (loss)	$ 389	$ (1,545)	$ 228
Less: Net (income) loss attributable to noncontrolling interests	(59)	276	(73)
Net income (loss) available to News Corporation stockholders	$ 330	$ (1,269)	$ 155
Weighted-average number of shares of common stock outstanding—basic	590.4	587.9	584.7
Dilutive effect of equity awards	3.0	0.0	3.2
Weighted-average number of shares of common stock outstanding—diluted	593.4	587.9	587.9
Net income (loss) available to News Corporation stockholders per share—basic	$ 0.56	$ (2.16)	$ 0.27
Net income (loss) available to News Corporation stockholders per share—diluted	$ 0.56	$ (2.16)	$ 0.26