Additional Financial Information - Components of Accumulated Other Comprehensive (Loss) Income (Detail) - USD ($) $ in Millions		12 Months Ended
		Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Accumulated other comprehensive (loss) income, net of tax:
Balance, beginning of year		$ (582)	$ 610	$ 271
Fiscal year activity, net of income tax (expense) benefit		(444)	(1,192)	339
Balance, end of year		(1,026)	(582)	610
Unrealized Holding Gains (Losses) on Securities [Member]
Accumulated other comprehensive (loss) income, net of tax:
Balance, beginning of year		19	24	2
Fiscal year activity, net of income tax (expense) benefit	[1]	1	(5)	22
Balance, end of year		20	19	24
Benefit Plan Adjustments [Member]
Accumulated other comprehensive (loss) income, net of tax:
Balance, beginning of year		(413)	(384)	(348)
Fiscal year activity, net of income tax (expense) benefit	[2]	(32)	(29)	(36)
Balance, end of year		(445)	(413)	(384)
Foreign Currency Translation Adjustments [Member]
Accumulated other comprehensive (loss) income, net of tax:
Balance, beginning of year		(188)	971	617
Fiscal year activity, net of income tax (expense) benefit	[3]	(397)	(1,159)	354
Balance, end of year		(585)	(188)	971
Share of Other Comprehensive Income from Equity Affiliates Net [Member]
Accumulated other comprehensive (loss) income, net of tax:
Balance, beginning of year		0	(1)	0
Fiscal year activity, net of income tax (expense) benefit	[4]	(16)	1	(1)
Balance, end of year		$ (16)	$ 0	$ (1)

[1] Net of income tax expense of nil, nil and $14 million for the fiscal years ended June 30, 2016, 2015 and 2014, respectively.

[2] Net of income tax (benefit) of ($14) million, ($11) million and ($3) million for the fiscal years ended June 30, 2016, 2015 and 2014, respectively.

[3] Excludes ($1) million, ($24) million and $2 million relating to noncontrolling interests for the fiscal years ended June 30, 2016, 2015 and 2014, respectively.

[4] Net of income tax (benefit) expense of ($7) million, $1 million and ($1) million for the fiscal years ended June 30, 2016, 2015 and 2014, respectively.