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Share-based incentive compensation programs (Tables) | 12 Months Ended
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Dec. 31, 2014
Summarized Information about Incentive Share, Deferred Share and Restricted Stock Units | The following table summarizes information about these units for the year ended December 31, 2014:
|  | Restricted stock units |  |  | Deferred share units |
Outstanding at January 1, 2014 |  |  | 8,714,854 |  |  |  | 98,236 |
Granted |  |  | 1,427,460 |  |  |  | 8,963 |
Exercised |  |  | (1,719,387 | ) |  |  | - |
Forfeited and cancelled |  |  | (45,442 | ) |  |  | - |
Outstanding at December 31, 2014 |  |  | 8,377,485 |  |  |  | 107,199 |

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- Definition Tabular disclosure of components of a stock option or other award plan under which equity-based compensation is awarded to employees, typically comprised of the amount of unearned compensation (deferred compensation cost), compensation expense, and changes in the quantity and fair value of the shares (or other type of equity) granted, exercised, forfeited, and issued and outstanding pertaining to that plan. Disclosure may also include nature and general terms of such arrangements that existed during the period and potential effects of those arrangements on shareholders, effect of compensation cost arising from equity-based payment arrangements on the income statement, method of estimating the fair value of the goods or services received, or the fair value of the equity instruments granted, during the period, cash flow effects resulting from equity-based payment arrangements and, for registrants that accelerate vesting of out of the money share options, reasons for the decision to accelerate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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