v2.4.0.6

Stock-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2011
Share-based Compensation [Abstract] |
2010 Stock Plan [Table Text Block] | The following table depicts the number of shares authorized for issuance and availability under the 2010 Plan (shares in millions):
| 2010 Plan
Authorized for issuance | 21.0 |
Issued and reserved for issuance of outstanding: |  |
Options | 1.0 |
Restricted stock units (2 1/2 times the number of awards) | 5.5 |
Performance-based restricted stock units (2 1/2 times the number of awards) | 1.1 |
Shares available for issuance | 13.4 |
Share-based Compensation Expense Recognized [Table Text Block] | The table below summarizes the expense related to share-based payments for the years ended December 31, (in millions):
| 2011 | 2010 | 2009
Stock options | $ | 12.5 |  | $ | 13.9 |  | $ | 14.4 |
Restricted stock | 30.5 |  | 22.6 |  | 20.7 |
Stock-based compensation | $ | 43.0 |  | $ | 36.5 |  | $ | 35.1 |
Stock-based compensation, net of income tax benefit of $11.2 million, $8.0 million and $5.3 million in 2011, 2010 and 2009, respectively | $ | 31.8 |  | $ | 28.5 |  | $ | 29.8 |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] | The fair value of stock option awards granted was estimated using the Black-Scholes option pricing model with the following weighted-average assumptions for the years ended December 31,:
| 2011 | 2010 | 2009
Risk-free interest rate | 2.6% | 2.9% | 2.2%
Dividend yield | 1.3% | 1.4% | 5.2%
Expected volatility | 39% | 38% | 35%
Expected life (in years) | 6.4 | 6.7 | 6.8
Summary Of Changes In Stock Options | The following table summarizes the changes in the number of shares of common stock under option for the following periods (shares and aggregate intrinsic value in millions):
| Shares | Weighted-Average Exercise Price | Exercisable at End of Year | Weighted-Average Exercise Price | Weighted-Average Fair Value of Options Granted During the Year | Aggregate Intrinsic Value
Outstanding at December 31, 2008 | 16.4 |  | $ | 26 |  | 6.6 |  | $ | 27 |  |  | $ | — |
Granted | 3.2 |  | 8 |  |  |  | $ | 2 |  |
Forfeited / expired | (3.3 | ) | 26 |  |  |  |  |
Outstanding at December 31, 2009 | 16.3 |  | $ | 22 |  | 7.6 |  | $ | 26 |  |  | $ | 21.1 |
Granted | 1.5 |  | 14 |  |  |  | $ | 5 |  |
Exercised | (0.1 | ) | 9 |  |  |  |  | $ | 0.5 |
Forfeited / expired | (1.4 | ) | 23 |  |  |  |  |
Outstanding at December 31, 2010 | 16.3 |  | $ | 22 |  | 8.9 |  | $ | 26 |  |  | $ | 35.4 |
Granted | 1.0 |  | 19 |  |  |  | $ | 7 |  |
Forfeited / expired | (1.9 | ) | 23 |  |  |  |  |
Outstanding at December 31, 2011 | 15.4 |  | $ | 21 |  | 9.8 |  | $ | 24 |  |  | $ | 25.3 |
Vested and expected to vest at December 31, 2011 | 15.1 |  | $ | 21 |  |  |  |  |
Summary Of Changes Of Restricted Stock And Restricted Stock Units | The following table summarizes the changes in the number of shares of restricted stock, restricted stock units and performance-based restricted stock units for the following periods (shares in millions):
| Shares |  | Weighted-Average Grant Date Fair Value
Outstanding at December 31, 2008 | 3.2 |  |  | $ | 24 |
Granted | 2.8 |  |  | 8 |
Vested | (0.9 | ) |  | 24 |
Forfeited | (0.5 | ) |  | 22 |
Outstanding at December 31, 2009 | 4.6 |  |  | $ | 15 |
Granted | 2.2 |  |  | 14 |
Vested | (1.1 | ) |  | 24 |
Forfeited | (0.5 | ) |  | 13 |
Outstanding at December 31, 2010 | 5.2 |  |  | $ | 13 |
Granted | 2.5 |  |  | 17 |
Vested | (1.2 | ) |  | 19 |
Forfeited | (0.4 | ) |  | 14 |
Outstanding at December 31, 2011 | 6.1 |  |  | $ | 13 |
Expected to vest at December 31, 2011 | 5.8 |  |  | $ | 13 |
Schedule of Unrecognized Compensation Cost, Nonvested Awards [Table Text Block] | The following table summarizes the Company's total unrecognized compensation cost related to stock-based compensation as of December 31, 2011 (in millions):
| Unrecognized Compensation Cost | Weighted-Average Period of Expense Recognition (in years)
Stock options | $9.7 | 2
Restricted stock units | 33.3 | 2
Total | $43.0 |

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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 718 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph (c)(1) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 718 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the total compensation cost related to nonvested awards not yet recognized and the weighted-average period over which it is expected to be recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 718 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph (i) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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