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Stock-Based Compensation (Outstanding Awards) (Details) (USD $)
Share data in Thousands, except Per Share data, unless otherwise specified |
12 Months Ended | ||
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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| Aggregate intrinsic value (000's) | $ 23,000,000 | $ 494,000,000 | $ 46,000,000 |
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Common Class A [Member]
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Ìý | Ìý | Ìý |
| Outstanding options | 3,656 | 5,219 | Ìý |
| Outstanding WAEP | $ 91.74 | $ 98.77 | Ìý |
| Aggregate intrinsic value | $ 200,000 | Ìý | Ìý |
| Exercisable options | 2,185 | Ìý | Ìý |
| Exercisable WAEP | $ 89.22 | Ìý | Ìý |
| X | ||||||||||
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- Definition
The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of options outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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