Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Millions	1 Months Ended	3 Months Ended
	Feb. 29, 2016	Sep. 30, 2016	Sep. 30, 2015	Jun. 30, 2016
Loss Contingencies [Line Items]
Selling, general and administrative expenses, net		$ 678	$ 650
Other current assets		535		$ 513
Litigation amount payment to plaintiffs		250
Litigation settlement	$ 30
U.K. Newspaper Matters [Member]
Loss Contingencies [Line Items]
Selling, general and administrative expenses, net		2	$ 5
Litigation liability accrued		101
U.K. Newspaper Matters Indemnification [Member] | 21st Century Fox [Member]
Loss Contingencies [Line Items]
Other current assets		$ 58