Additional Financial Information - Components of Accumulated Other Comprehensive (Loss) Income (Detail) - USD ($) $ in Millions		12 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Accumulated other comprehensive (loss) income, net of tax:
Balance, beginning of year		$ 610	$ 271	$ 1,047
Fiscal year activity, net of income tax (expense) benefit		(1,192)	339	(776)
Balance, end of year		(582)	610	271
Unrealized Holding Gains (Losses) on Securities [Member]
Accumulated other comprehensive (loss) income, net of tax:
Balance, beginning of year		24	2	1
Fiscal year activity, net of income tax (expense) benefit	[1]	(5)	22	1
Balance, end of year		19	24	2
Benefit Plan Adjustments [Member]
Accumulated other comprehensive (loss) income, net of tax:
Balance, beginning of year		(384)	(348)	(358)
Fiscal year activity, net of income tax (expense) benefit	[2]	(29)	(36)	10
Balance, end of year		(413)	(384)	(348)
Foreign Currency Translation Adjustments [Member]
Accumulated other comprehensive (loss) income, net of tax:
Balance, beginning of year		971	617	1,404
Fiscal year activity, net of income tax (expense) benefit	[3]	(1,159)	354	(787)
Balance, end of year		(188)	971	$ 617
Share of Other Comprehensive Income from Equity Affiliates Net [Member]
Accumulated other comprehensive (loss) income, net of tax:
Balance, beginning of year		(1)
Fiscal year activity, net of income tax (expense) benefit	[4]	$ 1	(1)
Balance, end of year			$ (1)

[1] Net of income tax expense of nil, $14 million and nil for the fiscal years ended June 30, 2015, 2014 and 2013, respectively.

[2] Net of income tax (benefit) expense of ($11) million, ($3) million and $5 million for the fiscal years ended June 30, 2015, 2014 and 2013, respectively.

[3] Excludes ($24) million, $2 million and ($10) million relating to noncontrolling interests for the fiscal years ended June 30, 2015, 2014 and 2013, respectively.

[4] Net of income tax expense (benefit) of $1 million, ($1) million and nil for the fiscal years ended June 30, 2015, 2014 and 2013, respectively.