Equity-Based Compensation - Summary of Equity-Based Compensation Expense (Detail) - USD ($) $ in Millions		12 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity-based compensation		$ 54	$ 34	$ 49
Total intrinsic value of stock options exercised		24	2	23
News Corporation's Employee Stock Compensation Expense [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity-based compensation		54	34	41
Allocated Corporate Expenses [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity-based compensation	[1]	$ 0	$ 0	$ 8

[1] The allocated expense includes executive directors and corporate executives of 21st Century Fox, allocated using a proportional allocation methodology, which management has deemed to be reasonable.