Additional Financial Information - Components of Other, Net Included in Statements of Operations (Detail) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Other Income and Expenses [Abstract]
Gain on sale of REA Group's European business	[1]	$ 120	$ 0	$ 120	$ 0
Write-down of marketable securities		(21)	0	(21)	0
Gain on sale of other businesses		11	0	11	0
Gain on sale of equity method investments		11	0	17	0
Other, net		2	(6)	13	(1)
Total Other, net		$ 123	$ (6)	$ 140	$ (1)

[1] The Company recorded a $120 million gain resulting from the sale of REA Group's European business. See Note 2-Acquisitions, Disposals and Other Transactions.