Equity - Summary of Changes in Equity (Detail) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Changes In Equity [Line Items]
Beginning balance	$ 10,311	$ 10,477
Cumulative impact from adoption of new standards	9	20
Net (loss) income	(211)	128
Other comprehensive loss	(188)	(103)
Dividends	(81)	(82)
Other	(11)	(10)
Ending balance	$ 9,829	10,430
Class A Common Stock [Member]
Changes In Equity [Line Items]
Beginning balance, shares	385,580,015
Ending balance, shares	388,492,158
Class B Common Stock [Member]
Changes In Equity [Line Items]
Beginning balance, shares	199,630,240
Ending balance, shares	199,630,240
Common Stock [Member] | Class A Common Stock [Member]
Changes In Equity [Line Items]
Beginning balance	$ 4	$ 4
Beginning balance, shares	386,000,000	383,000,000
Other, Shares	2,000,000	2,000,000
Ending balance	$ 4	$ 4
Ending balance, shares	388,000,000	385,000,000
Common Stock [Member] | Class B Common Stock [Member]
Changes In Equity [Line Items]
Beginning balance	$ 2	$ 2
Beginning balance, shares	200,000,000	200,000,000
Ending balance	$ 2	$ 2
Ending balance, shares	200,000,000	200,000,000
Additional Paid-in Capital [Member]
Changes In Equity [Line Items]
Beginning balance	$ 12,243	$ 12,322
Dividends	(59)	(59)
Other	(10)	(6)
Ending balance	12,174	12,257
Accumulated Deficit [Member]
Changes In Equity [Line Items]
Beginning balance	(1,979)	(2,163)
Cumulative impact from adoption of new standards	6	32
Net (loss) income	(227)	101
Other		(2)
Ending balance	(2,200)	(2,032)
Accumulated Other Comprehensive Loss [Member]
Changes In Equity [Line Items]
Beginning balance	(1,126)	(874)
Cumulative impact from adoption of new standards	3	(22)
Other comprehensive loss	(143)	(75)
Other		1
Ending balance	(1,266)	(970)
Total News Corporation Equity
Changes In Equity [Line Items]
Beginning balance	9,144	9,291
Cumulative impact from adoption of new standards	9	10
Net (loss) income	(227)	101
Other comprehensive loss	(143)	(75)
Dividends	(59)	(59)
Other	(10)	(7)
Ending balance	8,714	9,261
Noncontrolling Interest [Member]
Changes In Equity [Line Items]
Beginning balance	1,167	1,186
Cumulative impact from adoption of new standards		10
Net (loss) income	16	27
Other comprehensive loss	(45)	(28)
Dividends	(22)	(23)
Other	(1)	(3)
Ending balance	$ 1,115	$ 1,169