Income Taxes - Additional Information (Detail) - Jun. 20, 2015 - USD ($) $ in Millions	Total
Income Tax [Line Items]
Unrecognized tax benefits decreased	$ 1
Unrecognized Tax Benefits	$ 93
Number of months within which company does not anticipate significant change in unrecognized tax benefits	12 months

Income Tax [Line Items]

No definition available.

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- Definition

Number Of Period Within Which Company Does Not Anticipate Significant Change In Unrecognized Tax Benefits

+ References

No definition available.

+ Details

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- Definition

Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

+ 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=6907707&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

+ Details

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- Definition

The net amount of all increases and decreases in unrecognized tax benefits for the period.

+ References

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