XML 42 R36.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Stock-Based Compensation (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2012
Stock-Based Compensation [Abstract] |
Stock based compensation expense |
|  | 2012 |  |  | 2011 |  |  | 2010 |
Stock based compensation |  | $ | 40.8 |  |  | $ | 31.7 |  |  | $ | 25.2 |
Tax benefit recognized in net income |  |  | 14.3 |  |  |  | 11.1 |  |  |  | 8.8 |
Windfall tax benefit, net |  |  | 30.8 |  |  |  | 12.7 |  |  |  | 7.3 |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions |
|  | 2012 |  |  | 2011 |  |  | 2010 |
Weighted-average fair value ($) |  |  | 30.25 |  |  |  | 24.45 |  |  |  | 17.00 |
Risk-free interest rate (%) |  |  | 0.77 |  |  |  | 1.91 |  |  |  | 2.32 |
Average expected option life (years) |  |  | 5.24 |  |  |  | 5.34 |  |  |  | 5.38 |
Expected volatility (%) |  |  | 36.51 |  |  |  | 35.27 |  |  |  | 34.55 |
Expected dividend yield (%) |  |  | 0.58 |  |  |  | 0.60 |  |  |  | 0.72 |
Schedule of Share-based Compensation, Stock Option Activity |
|  | Number of shares |  |  | Weighted-average exercise price per share |  |  | Weighted-average contractual term |  |  | Aggregate intrinsic value |
Outstanding at January 1, 2012 |  |  | 3,822,662 |  |  | $ | 50.44 |  |  |  |  |  |  |
Granted |  |  | 538,100 |  |  |  | 95.27 |  |  |  |  |  |  |
Exercised |  |  | (1,389,069 | ) |  |  | 40.46 |  |  |  |  |  |  |
Canceled |  |  | (53,498 | ) |  |  | 70.01 |  |  |  |  |  |  |
Outstanding at December 31, 2012 |  |  | 2,918,195 |  |  |  | 63.15 |  |  |  | 6.52 |  |  | $ | 141,029,378 |
Exercisable at December 31, 2012 |  |  | 1,616,022 |  |  | $ | 51.44 |  |  |  | 5.18 |  |  | $ | 97,030,148 |
Summary of Options Outstanding and Exercisable, by Range of Exercise Prices |
|  |  | Outstanding options |  |  | Exercisable options |
Exercise price |  |  | Number |  |  | Average exercise price |  |  | Average remaining life (years) |  |  | Number |  |  | Average exercise price |
$ | 11.22 - 22.45 |  |  |  | 6,850 |  |  | $ | 21.49 |  |  |  | 0.6 |  |  |  | 6,850 |  |  | $ | 21.49 |
| 22.46 - 33.67 |  |  |  | 177,412 |  |  |  | 23.57 |  |  |  | 1.2 |  |  |  | 177,412 |  |  |  | 23.57 |
| 33.68 - 44.89 |  |  |  | 205,022 |  |  |  | 41.86 |  |  |  | 5.9 |  |  |  | 205,022 |  |  |  | 41.86 |
| 44.90 - 56.12 |  |  |  | 1,306,472 |  |  |  | 53.55 |  |  |  | 5.4 |  |  |  | 1,023,369 |  |  |  | 53.78 |
| 56.13 - 67.34 |  |  |  | 26,167 |  |  |  | 63.96 |  |  |  | 6.9 |  |  |  | 15,167 |  |  |  | 64.45 |
| 67.35 - 78.56 |  |  |  | 601,581 |  |  |  | 72.85 |  |  |  | 8.2 |  |  |  | 149,577 |  |  |  | 73.18 |
| 78.57 - 89.78 |  |  |  | 68,091 |  |  |  | 84.22 |  |  |  | 8.2 |  |  |  | 38,625 |  |  |  | 84.21 |
| 89.79 - 101.01 |  |  |  | 474,100 |  |  |  | 94.25 |  |  |  | 9.1 |  |  |  | - |  |  |  | - |
| 101.02 - 112.23 |  |  |  | 52,500 |  |  |  | 104.85 |  |  |  | 9.7 |  |  |  | - |  |  |  | - |
$ | 11.22 - 112.23 |  |  |  | 2,918,195 |  |  | $ | 63.15 |  |  |  | 6.5 |  |  |  | 1,616,022 |  |  | $ | 51.44 |
Schedule of Nonvested Restricted Stock Awards Activity |
|  | Number of shares |  |  | Weighted-average fair value |
Nonvested at January 1, 2012 |  |  | 753,811 |  |  | $ | 61.15 |
Granted |  |  | 374,307 |  |  |  | 95.78 |
Vested |  |  | (551,051 | ) |  |  | 64.59 |
Forfeited |  |  | (5,162 | ) |  |  | 70.56 |
Nonvested at December 31, 2012 |  |  | 571,905 |  |  | $ | 80.96 |

X
- Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph g(1) -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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64 -Subparagraph b -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 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=6793087&loc=d3e301413-122809 + Details
Name: | us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock units. + 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)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration