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Earnings per Common Share (Tables) | 3 Months Ended
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Mar. 31, 2015
Earnings Per Share [Abstract] |
Calculation of basic and diluted weighted-average shares outstanding |
|  | Three Months Ended March 31,
(In thousands) |  | 2015 |  | 2014
Weighted-average shares - basic |  | 413,344 |  |  | 416,900 |
Dilution effect of stock appreciation rights and stock awards at end of period |  | 1,427 |  |  | 1,613 |
Weighted-average shares - diluted |  | 414,771 |  |  | 418,513 |
Weighted-average stock awards and shares excluded from diluted EPS due to the anti-dilutive effect |  | 401 |  |  | 272 |

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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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