Income Taxes - Additional Information (Detail) - USD ($) $ in Millions		3 Months Ended		9 Months Ended		12 Months Ended
		Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016	Jun. 30, 2016
Income Tax Contingency [Line Items]
Income tax expense (benefit)		$ 45	$ (98)	$ 12	$ (140)
Income tax loss due to effective tax rate		$ 45	226	207	19
Change in valuation allowance tax benefit					106
Income taxes paid				89	78
Income tax refunds				1	1
iProperty Group Limited [Member]
Income Tax Contingency [Line Items]
Business acquisition recognized gain resulting from remeasurement of previously held equity interest	[1]		29		29
Australia Newspapers [Member]
Income Tax Contingency [Line Items]
Income tax adjustment due to non-cash write-down of assets and investments				$ 121
REA Group [Member] | iProperty Group Limited [Member] | Other, Net [Member]
Income Tax Contingency [Line Items]
Business acquisition recognized gain resulting from remeasurement of previously held equity interest			29			$ 29
News America Marketing [Member]
Income Tax Contingency [Line Items]
Income tax expense (benefit)			$ (107)
Tax Benefits of Discontinued Operations [Member] | Digital Education [Member]
Income Tax Contingency [Line Items]
Income tax benefit discontinued operations					144
Income tax benefit discontinued operations, reclassified					$ 30

[1] The Company recorded a $29 million gain resulting from the revaluation of REA Group's previously held equity interest in iProperty. (See Note 2-Acquisitions, Disposals and Other Transactions).