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Earnings Per Share (Tables) | 9 Months Ended
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Sep. 30, 2011
Earnings Per Share [Abstract] |
Basic and diluted earnings per share |
|  | Three Months |  |  | Nine Months |
For the Periods Ended September 30 |  | 2011 |  |  | 2010 |  |  | 2011 |  |  | 2010 |
Income from continuing operations |  | $ | 71 |  |  | $ | 12 |  |  | $ | 365 |  |  | $ | 382 |
Weighted average common shares outstanding |  |  | 184.4 |  |  |  | 182.5 |  |  |  | 184.0 |  |  |  | 182.2 |
Add: Weighted average restricted stock awards outstanding(a) |  |  | 1.1 |  |  |  | 1.6 |  |  |  | 1.2 |  |  |  | 1.6 |
Basic weighted average common shares outstanding |  |  | 185.5 |  |  |  | 184.1 |  |  |  | 185.2 |  |  |  | 183.8 |
Add: Dilutive impact of stock options |  |  | 1.0 |  |  |  | 1.2 |  |  |  | 1.4 |  |  |  | 1.4 |
Diluted weighted average common shares outstanding |  |  | 186.5 |  |  |  | 185.3 |  |  |  | 186.6 |  |  |  | 185.2 |
Basic earnings per share from continuing operations |  | $ | 0.38 |  |  | $ | 0.07 |  |  | $ | 1.97 |  |  | $ | 2.08 |
Diluted earnings per share from continuing operations |  | $ | 0.38 |  |  | $ | 0.07 |  |  | $ | 1.96 |  |  | $ | 2.06 |
(a) |  | Restricted stock awards containing rights to non-forfeitable dividends which participate in undistributed earnings with common shareholders are considered participating securities for purposes of computing earnings per share.
Number of shares underlying stock options excluded from the computation of diluted earnings |
|  | Three Months |  |  | Nine Months |
For the Periods Ended September 30 |  | 2011 |  |  | 2010 |  |  | 2011 |  |  | 2010 |
Anti-dilutive stock options |  |  | 2.6 |  |  |  | 2.2 |  |  |  | 1.8 |  |  |  | 2.1 |
Average exercise price |  | $ | 55.26 |  |  | $ | 54.30 |  |  | $ | 56.55 |  |  | $ | 54.42 |

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations. + Details
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