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Stockholders' Equity (Stock Options Included in and Excluded from Calculations) (Details)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
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| Stockholders' Equity Note [Abstract] | |||
| Stock options included in the calculation of EPS (dilutive) | 0.9 | 4.4 | 6.5 |