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Number of Shares Vested Due to Attainment of Performance Measures

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- Definition

Share based compensation arrangement by share based payment award fair value assumptions historical expected volatility.

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- Definition

Share based compensation arrangement by share based payment award fair value assumptions implied expected volatility.

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- Definition

Share-based compensation arrangement by share-based payment award terms of award maximum.

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Share-based compensation arrangement by share-based payment award terms of award minimum.

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- Definition

Share Based Compensation Arrangement by Share Based Payment Award, Vesting Installments

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Amount of increase in additional paid in capital (APIC) resulting from a tax benefit associated with share-based compensation plan other than an employee stock ownership plan (ESOP). Includes, but is not limited to, excess tax benefit.

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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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The compensation expense recognized during the period pertaining to the deferred compensation arrangement.

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- Definition

The maximum number of shares authorized for issuance under the deferred compensation arrangement as of the balance sheet date.

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- Definition

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.

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- Definition

Unrecognized cost of unvested share-based compensation awards.

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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.

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- Definition

The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

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- Definition

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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).

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- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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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.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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- Definition

Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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Amount of an unrecognized tax benefit that is directly related to a position taken in a tax year that results in a net operating loss carryforward. This amount is presented as a reduction of the related deferred tax asset in the balance sheet if that deferred tax asset is not used. This amount is presented separately from the deferred tax asset for a net operating loss carryforward if this unrelated tax benefit is associated with a different tax position.

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-Glossary Unrecognized Tax Benefit

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Share Based Compensation (Details Textual) (USD $)	12 Months Ended
Share Based Compensation (Details Textual) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation Awards
Number of Shares Authorized for Grant Under the LTIP	12,700,000
Number of Shares Available for Future Grant Under the LTIP	3,200,000
Share-based Compensation Expense	$ 19,000,000	$ 17,000,000	$ 21,000,000
Tax Benefit from Compensation Expense	0	0	0
Options, Additional Disclosures
Operating Loss Carryforwards	2,067,000,000
Stock Options [Member]
Share Based Compensation
Share Based Compensation Arrangement by Share Based Payment Award Vesting Installments	4
Vesting period	1 year
Compensation Cost Not Yet Recognized on Nonvested Awards	2,000,000
Compensation Cost Not Yet Recognized on Nonvested Awards, Period for Recognition	1 year 11 months
Options, Additional Disclosures
Share Based Compensation Arrangement by Share Based Payment Award Award Expiration Period	10 years
Historical Expected Volatility	50.00%
Implied Expected Volatility	50.00%
Fair Value of Stock Option Granted		$ 8.39	$ 10.60
Total Intrinsic Value of Option Exercises in Period	7,000,000	7,000,000	1,000,000
Cash Received from Exercise of Stock Options	4,000,000	4,000,000	1,000,000
Tax Benefit from Option Exercises Recorded in Additional Paid	0
Operating Loss Carryforwards	47,000,000
Unrecognized Tax Benefits Resulting in Net Operating Loss Carryforward	17,000,000
Fair Value of Options Vested in Period	10,000,000	5,000,000	14,000,000
Market Share Units [Member]
Share Based Compensation
Compensation Cost Not Yet Recognized on Nonvested Awards	2,000,000
Compensation Cost Not Yet Recognized on Nonvested Awards, Period for Recognition	1 year 7 months
Equity Instruments Other than Options, Additional Disclosures
Shares granted	361,000
Market Share Units [Member] \| Maximum [Member]
Share Based Compensation
Vesting period	3 years
Equity Instruments Other than Options, Additional Disclosures
Maximum of Performance Shares to be Earned	150.00%
Market Share Units [Member] \| Minimum [Member]
Share Based Compensation
Vesting period	2 years
Equity Instruments Other than Options, Additional Disclosures
Minimum of Performance Shares to be Earned	0.00%
Restricted Stock Units (RSUs) [Member]
Share Based Compensation
Share Based Compensation Arrangement by Share Based Payment Award Vesting Installments	4
Vesting period	4 years
Compensation Cost Not Yet Recognized on Nonvested Awards	4,000,000
Compensation Cost Not Yet Recognized on Nonvested Awards, Period for Recognition	2 years
Equity Instruments Other than Options, Additional Disclosures
Shares granted	39,500
Fair Value of Equity Instruments Other than Options Vested in Period	7,000,000	13,000,000	5,000,000
Performance Shares [Member]
Share Based Compensation
Vesting period	3 years
Compensation Cost Not Yet Recognized on Nonvested Awards	4,000,000
Compensation Cost Not Yet Recognized on Nonvested Awards, Period for Recognition	1 year 8 months
Equity Instruments Other than Options, Additional Disclosures
Shares granted	105,000		227,539
Fair Value of Equity Instruments Other than Options Vested in Period	152,295
Number of Shares Vested Due to Performance Measures	202,857
Performance Shares [Member] \| Maximum [Member]
Equity Instruments Other than Options, Additional Disclosures
Maximum of Performance Shares to be Earned	200.00%
Performance Shares [Member] \| Minimum [Member]
Equity Instruments Other than Options, Additional Disclosures
Minimum of Performance Shares to be Earned	0.00%
Non Employee Director Deferred Stock [Member]
Equity Instruments Other than Options, Additional Disclosures
Deferred Shares Held by Board of Directors	182,632	172,124	163,627
Compensation Expense on Deferred Shares Held by Board of Directors	$ 1,000,000	$ 3,000,000	$ 0