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Compensation Plans (Tables) | 12 Months Ended
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Dec. 31, 2014
Compensation Plans [Abstract] |
Schedule of Assumptions Used in Calculating the Fair Value of Stock Options |
| 2014 | 2013 | 2012
Dividend yield | 2.9 | % | 3.6 | % | 3.2 | %
Volatility | 31.33 | % | 34.86 | % | 34.87 | %
Risk-free interest rate | 1.7 | % | 1.0 | % | 0.9 | %
Expected life (years) | 5.3 |  | 5.3 |  | 5.3 |
Schedule of Stock Option Awards |
| Number of Shares (in thousands) | Weighted Average Exercise Price (per share) | Weighted Average Remaining Contractual Term (years) | Aggregate Intrinsic Value (in thousands)
Outstanding, December 31, 2013 | 21,571 |  | $ | 41.58 |  |  |  |
Granted | 4,592 |  | $ | 61.91 |  |  |  |
Exercised | (7,035 | ) | $ | 36.26 |  |  |  |
Forfeited | (168 | ) | $ | 55.55 |  |  |  |
Cancelled | (65 | ) | $ | 49.47 |  |  |  |
Outstanding, December 31, 2014 | 18,895 |  | $ | 48.34 |  | 4.23 | $ | 484,341 |
Exercisable, December 31, 2014 | 9,251 |  | $ | 41.46 |  | 2.96 | $ | 300,498 |
Schedule of Restricted Stock Units and Performance Stock Units |
| Number of Shares (in thousands) | Weighted Average Grant Date Fair Value (per share)
Nonvested, December 31, 2013 | 3,765 |  | $ | 52.41 |
Granted | 1,623 |  | $ | 64.64 |
Vested | (1,475 | ) | $ | 50.68 |
Forfeited | (156 | ) | $ | 59.73 |
Nonvested, December 31, 2014 | 3,757 |  | $ | 57.60 |

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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units and performance-based restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units and performance-based restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + 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 (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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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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