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Stockholders' Equity Schedule of Common Stock Outstanding Roll Forward (Details)
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12 Months Ended | ||
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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| Class of Stock [Line Items] | |||
| Stock Repurchased During Period, Shares | (2,450,700)us-gaap_StockRepurchasedDuringPeriodShares | ||
| Ending Balance, Common Shares Outstanding | 366,395,920us-gaap_CommonStockSharesOutstanding | 364,935,168us-gaap_CommonStockSharesOutstanding | |
| Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant | 2,002,406us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant | ||
| Common Stock [Member] | |||
| Class of Stock [Line Items] | |||
| Beginning Balance, Common Shares Outstanding |
364,935,168us-gaap_CommonStockSharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
298,813,258us-gaap_CommonStockSharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
140,596,708us-gaap_CommonStockSharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
| Stock Issued During Period, Shares, Period Increase (Decrease) |
57,218us-gaap_StockIssuedDuringPeriodSharesPeriodIncreaseDecrease / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
67,511,609us-gaap_StockIssuedDuringPeriodSharesPeriodIncreaseDecrease / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
158,184,529us-gaap_StockIssuedDuringPeriodSharesPeriodIncreaseDecrease / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
| Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures |
1,403,534us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
1,061,001us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
32,021us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
| Stock Repurchased During Period, Shares |
(2,450,700)us-gaap_StockRepurchasedDuringPeriodShares / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
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| Ending Balance, Common Shares Outstanding |
366,395,920us-gaap_CommonStockSharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
364,935,168us-gaap_CommonStockSharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
298,813,258us-gaap_CommonStockSharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The increase (decrease) during the period in the number of shares issued. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of any shares forfeited. Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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