v2.4.0.6

Stock-Based Compensation Plans (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2012
Stock-Based Compensation Plans |
Information with respect to stock options granted |
|  | 2009 Plan shares |  | Weighted average exercise price per share |  | 1994 Plan shares |  | Weighted average exercise price per share |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Options Outstanding, December 31, 2009 |  |  | — |  | $ | — |  |  | 2,836,254 |  | $ | 80.76 |
Exercised |  |  | — |  |  | — |  |  | (729,381 | ) |  | 57.87 |
Granted |  |  | 126,484 |  |  | 74.20 |  |  | — |  |  | — |
Forfeited |  |  | — |  |  | — |  |  | (34,656 | ) |  | 100.02 |
Options Outstanding, December 31, 2010 |  |  | 126,484 |  | $ | 74.20 |  |  | 2,072,217 |  | $ | 88.50 |
Exercised |  |  | (23,908 | ) |  | 75.75 |  |  | (930,391 | ) |  | 82.43 |
Granted |  |  | 144,827 |  |  | 115.83 |  |  | — |  |  | — |
Forfeited |  |  | — |  |  | — |  |  | (28,867 | ) |  | 68.29 |
Options Outstanding, December 31, 2011 |  |  | 247,403 |  | $ | 98.42 |  |  | 1,112,959 |  | $ | 94.10 |
Exercised |  |  | (43,265 | ) |  | 85.09 |  |  | (364,519 | ) |  | 68.21 |
Granted |  |  | 115,303 |  |  | 133.16 |  |  | — |  |  | — |
Forfeited |  |  | (11,887 | ) |  | 115.15 |  |  | (28,610 | ) |  | 139.58 |
Options Outstanding, December 31, 2012 |  |  | 307,554 |  | $ | 112.67 |  |  | 719,830 |  | $ | 105.40 |
Options Exercisable: |  |  |  |  |  |  |  |  |  |  |  |  |
December 31, 2010 |  |  | 3,417 |  | $ | 74.20 |  |  | 1,730,978 |  | $ | 93.60 |
December 31, 2011 |  |  | 30,771 |  | $ | 81.54 |  |  | 1,012,304 |  | $ | 98.62 |
December 31, 2012 |  |  | 74,618 |  | $ | 97.46 |  |  | 719,830 |  | $ | 105.40 |
Summary of exercise prices and contractual lives of options outstanding | The following summarizes the exercise prices and contractual lives of options outstanding as of December 31, 2012:
2009 Plan Number of Options |  | Range—Exercise Price |  | Weighted Average Remaining Contractual Term (in years) |
--- | --- | --- | --- | --- | ---
69,287 |  | $70.00 - 79.99 |  |  | 7.1 |
127,930 |  | 110.00 - 119.99 |  |  | 8.1 |
108,838 |  | 130.00 - 139.99 |  |  | 9.1 |
1,499 |  | 140.00 - 149.99 |  |  | 9.5 |
307,554 |  |  |  |  |  |
1994 Plan Number of Options |  | Range—Exercise Price |  | Weighted Average Remaining Contractual Term (in years) |
--- | --- | --- | --- | --- | ---
1,424 |  | $30.00 - 39.99 |  |  | 0.1 |
94,898 |  | 40.00 - 49.99 |  |  | 3.5 |
41,556 |  | 60.00 - 69.99 |  |  | 2.1 |
730 |  | 70.00 - 79.99 |  |  | 2.5 |
107,833 |  | 80.00 - 89.99 |  |  | 5.1 |
187,380 |  | 90.00 - 99.99 |  |  | 3.1 |
286,009 |  | 140.00 - 149.99 |  |  | 4.1 |
719,830 |  |  |  |  |  |
Summary of weighted average fair value of employee stock options and associated assumptions used to calculate the value |
|  | 2012 |  | 2011 |  | 2010 |
--- | --- | --- | --- | --- | --- | --- | ---
Weighted average fair value per share |  | $ | 29.11 |  | $ | 29.40 |  | $ | 19.45 |
Life of options (in years) |  |  | 5.0 |  |  | 7.0 |  |  | 7.0 |
Dividend yield |  |  | 3.5 | % |  | 4.0 | % |  | 5.5 | %
Volatility |  |  | 35.00 | % |  | 35.00 | % |  | 43.00 | %
Risk-free interest rate |  |  | 0.87 | % |  | 3.04 | % |  | 3.15 | %

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- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + References Reference 1: 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph f -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + 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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