Quarterly Data - Schedule of Quarterly Financial Information (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Quarterly Financial Information Disclosure [Abstract]
Revenues	$ 2,693	$ 2,093	$ 2,180	$ 2,058	$ 2,080	$ 1,978	$ 2,116	$ 1,965	$ 9,024	$ 8,139	$ 8,292
Net income (loss)	(355)	(1,110)	(66)	87	(424)	0	(219)	0	(1,444)	(643)	250
Net income (loss) attributable to News Corporation stockholders	$ (371)	$ (1,128)	$ (83)	$ 68	$ (429)	$ (5)	$ (289)	$ (15)	$ (1,514)	$ (738)	$ 179
Income (loss) available to News Corporation stockholders per share-basic and diluted	$ (0.64)	$ (1.94)	$ (0.14)	$ 0.12	$ (0.74)	$ (0.01)	$ (0.50)	$ (0.03)	$ (2.60)	$ (1.27)	$ 0.30