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Antidilutive Shares (Details) In Millions, unless otherwise specified | 3 Months Ended | 9 Months Ended
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Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012
Antidilutive Securities |  |  |  |  |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount | 17.3 |  | 16.9 |  | 21.7 |  | 16.9 |
Antidilutive Stock Options Excluded Exercise Price Greater Than Average Market Price | 0 | [1] | 7.1 | [1] | 0.2 | [1] | 7.1 | [1]
4.75% Notes |  |  |  |  |  |  |  |
Antidilutive Securities |  |  |  |  |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount | 0 | [2] | 0 |  | 4.4 | [2] | 0 |
Preferred stock outstanding |  |  |  |  |  |  |  |
Antidilutive Securities |  |  |  |  |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount | 17.3 |  | 16.9 |  | 17.3 |  | 16.9 |
[1] | These options are outstanding at the end of the respective periods. In any period in which the exercise price is less than the average market price, these options have the potential to be dilutive, and application of the treasury stock method would reduce this amount.
[2] | We retired all of our outstanding 4.75% Notes in March 2013. See Note 2 for further information on our 4.75% Notes. For purposes of calculating diluted earnings per share, the potentially dilutive shares are pro-rated based on the period they were outstanding.

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- Definition Stock options excluded from the diluted earnings (loss) per share calculation because the exercise price was greater than the average market price. + References No definition available. + Details
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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Antidilution -URI http://asc.fasb.org/extlink&oid=6505113 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Diluted Earnings Per Share -URI http://asc.fasb.org/extlink&oid=6510752 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Contingent Stock Agreement -URI http://asc.fasb.org/extlink&oid=6508534 + Details
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