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Earnings per Common Share (Tables) | 12 Months Ended
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Dec. 31, 2014
Earnings Per Share [Abstract] |
Calculation of basic and diluted weighted-average shares outstanding | The following is a calculation of basic and diluted weighted-average shares outstanding:
| December 31,
(In thousands) | 2014 |  | 2013 |  | 2012
Weighted-average shares—basic | 415,840 |  |  | 420,188 |  |  | 419,075 |
Dilution effect of stock appreciation rights and stock awards at end of period | 1,761 |  |  | 2,187 |  |  | 2,912 |
Weighted-average shares—diluted | 417,601 |  |  | 422,375 |  |  | 421,987 |
Weighted-average shares excluded from diluted earnings per share due to the anti-dilutive effect | 20 |  |  | 5 |  |  | 85 |

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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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