Aggregate proceeds received by the entity during the annual period from exercises of stock or unit options and conversion of similar instruments granted under equity-based payment arrangements.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (j)

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (i)

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- Definition

Unrecognized cost of unvested options awarded to employees as compensation.

+ References

No definition available.

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (a)

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)(iii)(1)

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- Definition

Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

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- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (d)(2)

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- Definition

Gross number of share options (or share units) granted during the period.

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No definition available.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Aggregate Intrinsic Value

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Stock-Based Compensation Plans (Details Textual) (USD $)	3 Months Ended		6 Months Ended					0 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014 Stock Options	Jun. 30, 2014 Restricted Stock	Jun. 30, 2014 Performance Based Shares	Mar. 17, 2014 Patrick Decker	Mar. 17, 2014 Patrick Decker Restricted Stock	Mar. 17, 2014 Patrick Decker Performance Based Shares
Share-based Compensation Arrangement by Share-based Payment Award
Share-based compensation	$ 5,000,000	$ 6,000,000	$ 9,000,000	$ 12,000,000
Unamortized compensation expense					8,000,000	21,000,000	4,000,000
Weighted average period					2 years	2 years	2 years 5 months
Shares Awarded			538,000					165,584
Shares Awarded						360,000	84,000		40,342	40,342
Stock-Based Compensation Plans (Textual) [Abstract]
Amount of cash received from the exercise of stock options			17,000,000	1,000,000
Aggregate intrinsic value of outstanding stock options	37,000,000		37,000,000
Aggregate intrinsic value of exercisable stock options	24,000,000		24,000,000
Aggregate intrinsic value of vested and expected to vest stock options	36,000,000		36,000,000
Total intrinsic value of options exercised			$ 6,000,000