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Income Taxes (Details) - USD ($) $ in Millions		6 Months Ended
	Feb. 18, 2014	Jun. 30, 2015
Income Tax Examination [Line Items]
Period for unrecognized tax benefits to decrease		12 months
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit		$ 54
Internal Revenue Service (IRS) [Member] | Tax Year 2006 [Member]
Income Tax Examination [Line Items]
IRS Notice of Deficiency tax assessment	$ 70

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- Definition

Maximum Period for unrecognized tax benefits.

+ References

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- Definition

Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 740



-SubTopic 10



-Section 50



-Paragraph 15



-Subparagraph (d)(3)



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Estimated amount of loss resulting from an adverse tax position.

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