Additional Financial Information - Components of Accumulated Other Comprehensive (Loss) Income (Parenthetical) (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized holding (losses) gains on securities, income tax expense	$ 0	$ 14	$ 0
Pension plans, income tax (benefit) expense	(11)	(3)	5
Foreign currency translation adjustments, fiscal year activity	(1,183)	356	(797)
Share of other comprehensive income from equity affiliates, net, income tax expense (benefit)	1	(1)	0
Noncontrolling Interests [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Foreign currency translation adjustments, fiscal year activity	$ (24)	$ 2	$ (10)