Income Taxes - Change in Unrecognized Tax Benefits, Excluding Interest and Penalties (Detail) - USD ($) $ in Millions	12 Months Ended
Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Income Tax Disclosure [Abstract]
Balance, beginning of period	$ 86	$ 129	$ 58
Additions for prior year tax positions	107	6	79
Additions for current year tax positions	5	4	4
Reduction for prior year tax positions	(9)	(40)	(7)
Lapse of the statute of limitations	(8)	(2)	0
Settlement-cash	(21)	(2)	0
Settlement-tax attributes	(94)	0	0
Impact of currency translations	(2)	(9)	(5)
Balance, end of period	$ 64	$ 86	$ 129

Unrecognized tax benefits decreases resulting from tax attributes.

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- Definition

Unrecognized Tax Benefits, Increases (Decreases) Resulting From Foreign Currency Translation

+ References

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- Definition

Amount of unrecognized tax benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15A
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=65882285&loc=SL6600010-109319

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Unrecognized Tax Benefit
-URI http://asc.fasb.org/extlink&oid=6527854

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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- Definition

Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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