Commitments and Contingencies - Additional Information (Detail) $ in Millions, AUD in Billions	1 Months Ended		3 Months Ended		6 Months Ended
	Nov. 30, 2015 USD ($)	Aug. 31, 2015 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Nov. 30, 2015 AUD	Aug. 31, 2015 AUD	Jun. 30, 2015 USD ($)
Loss Contingencies [Line Items]
Net impact on Selling, general and administrative expenses			$ 688	$ 655	$ 1,338	$ 1,287
21st Century Fox [Member]
Loss Contingencies [Line Items]
Amounts due from 21st Century Fox			60		60				$ 63
Sports Programming Rights, Australian Football League [Member]
Loss Contingencies [Line Items]
Purchase price of media rights		$ 850						AUD 1.2
License period for media rights		6 years
License period for media rights start year		2017
License period for media rights end year		2022
Sports Programming Rights, National Rugby League [Member]
Loss Contingencies [Line Items]
Purchase price of media rights	$ 775						AUD 1.1
License period for media rights	5 years
License period for media rights start year	2018
License period for media rights end year	2022
U.K. Newspaper Matters [Member]
Loss Contingencies [Line Items]
Gross legal and professional fees related to the U.K. Newspaper Matters			12	23	23	51
Net impact on Selling, general and administrative expenses			7	13	12	27
Litigation liability accrued			111		111
U.K. Newspaper Matters Indemnification [Member]
Loss Contingencies [Line Items]
Indemnification from 21st Century Fox			5	$ 10	11	$ 24
U.K. Newspaper Matters Indemnification [Member] | 21st Century Fox [Member]
Loss Contingencies [Line Items]
Amounts due from 21st Century Fox			$ 60		$ 60