Pension and Other Postretirement Benefits - Schedule of Components of Net Periodic Costs (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Plan Disclosure [Line Items]
Settlements, curtailments and other	$ 1		$ 1
Domestic Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost benefits earned during the period	2		4
Interest costs on projected benefit obligations	4	2	8	5
Expected return on plan assets	(4)	(3)	(8)	(6)
Amortization of deferred losses	2	1	3	2
Amortization of prior service costs (credits)
Settlements, curtailments and other	1		4
Net periodic benefits costs- Direct	5		11	1
Employees participation in 21st Century Fox plans		4		9
Corporate allocations		1		2
Net periodic benefits costs- Total	5	5	11	12
Foreign Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost benefits earned during the period	3	5	6	10
Interest costs on projected benefit obligations	13	14	25	26
Expected return on plan assets	(19)	(16)	(37)	(32)
Amortization of deferred losses	3	4	6	8
Amortization of prior service costs (credits)
Settlements, curtailments and other		5		5
Net periodic benefits costs- Direct		12		17
Employees participation in 21st Century Fox plans
Corporate allocations
Net periodic benefits costs- Total		12		17
Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost benefits earned during the period		1		1
Interest costs on projected benefit obligations	2	2	4	4
Expected return on plan assets
Amortization of deferred losses		1		2
Amortization of prior service costs (credits)	(4)	(3)	(7)	(6)
Settlements, curtailments and other
Net periodic benefits costs- Direct	(2)	1	(3)	1
Employees participation in 21st Century Fox plans
Corporate allocations
Net periodic benefits costs- Total	$ (2)	$ 1	$ (3)	$ 1