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Stock-Based Compensation Programs (Tables) | 6 Months Ended
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Jun. 30, 2015
Stock-Based Compensation Programs |
Schedule of weighted average assumptions used for estimating fair values of options |
|  | February 2015 |  | January 2014 |
Expected dividend yield |  | 0.79 | % | 1.06 | %
Expected stock price volatility |  | 22.11 | % | 21.41 | %
Risk-free interest rate |  | 1.39 | % | 1.65 | %
Expected life of options (in years) |  | 5.85 years |  | 5.50 years |

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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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