Pension and Other Postretirement Benefits - Schedule of Components of Net Periodic Costs (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Defined Benefit Plan Disclosure [Line Items]
Settlements, curtailments and other	$ 0		$ 1
Domestic Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost benefits earned during the period	0	0	4	0
Interest costs on projected benefit obligations	4	3	12	8
Expected return on plan assets	(5)	(4)	(13)	(10)
Amortization of deferred losses	1	0	4	2
Amortization of prior service costs (credits)	0	0	0	0
Settlements, curtailments and other	0	0	4	0
Net periodic benefits costs- Direct	0	(1)	11	0
Employees participation in 21st Century Fox plans	0	2	0	11
Corporate allocations	0	1	0	3
Net periodic benefits costs- Total	0	2	11	14
Foreign Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost benefits earned during the period	3	4	9	14
Interest costs on projected benefit obligations	13	12	38	38
Expected return on plan assets	(19)	(16)	(56)	(48)
Amortization of deferred losses	3	4	9	12
Amortization of prior service costs (credits)	0	0	0	0
Settlements, curtailments and other	0	1	0	6
Net periodic benefits costs- Direct	0	5	0	22
Employees participation in 21st Century Fox plans	0	0	0	0
Corporate allocations	0	0	0	0
Net periodic benefits costs- Total	0	5	0	22
Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost benefits earned during the period	1	0	1	1
Interest costs on projected benefit obligations	1	2	5	6
Expected return on plan assets	0	0	0	0
Amortization of deferred losses	0	0	0	2
Amortization of prior service costs (credits)	(3)	(3)	(10)	(9)
Settlements, curtailments and other	0	0	0	0
Net periodic benefits costs- Direct	(1)	(1)	(4)	0
Employees participation in 21st Century Fox plans	0	0	0	0
Corporate allocations	0	0	0	0
Net periodic benefits costs- Total	$ (1)	$ (1)	$ (4)	$ 0