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Earnings per Common Share (Tables) | 9 Months Ended
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Sep. 30, 2014
Earnings Per Share [Abstract] |
Calculation of basic and diluted weighted-average shares outstanding |
|  | Three Months Ended September 30, |  | Nine Months Ended September 30,
(In thousands) |  | 2014 |  | 2013 |  | 2014 |  | 2013
Weighted-average shares - basic |  | 416,173 |  |  | 420,986 |  |  | 416,785 |  |  | 420,664 |
Dilution effect of stock appreciation rights and stock awards at end of period |  | 1,920 |  |  | 2,467 |  |  | 1,683 |  |  | 2,160 |
Weighted-average shares - diluted |  | 418,093 |  |  | 423,453 |  |  | 418,468 |  |  | 422,824 |
Weighted-average stock awards and shares excluded from diluted earnings per share due to the anti-dilutive effect |  | — |  |  | 1 |  |  | 461 |  |  | 3 |

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- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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