Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Millions	1 Months Ended	3 Months Ended			6 Months Ended
	Feb. 29, 2016	Dec. 31, 2016	Sep. 30, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Jun. 30, 2016
Loss Contingencies [Line Items]
Litigation amount payment to plaintiffs			$ 250		$ 250	$ 0
Litigation settlement	$ 30
Selling, general and administrative expenses, net		$ 665		$ 688	1,343	1,338
Other current assets		499			499		$ 513
U.K. Newspaper Matters [Member]
Loss Contingencies [Line Items]
Selling, general and administrative expenses, net		2		$ 7	4	$ 12
Litigation liability accrued		97			97
U.K. Newspaper Matters Indemnification [Member] | 21st Century Fox [Member]
Loss Contingencies [Line Items]
Other current assets		$ 53			$ 53