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Stock-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2011
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Schedule of Nonvested Share Activity [Table Text Block] | Activity for nonvested stock awards classified as equity is as follows:
|  |  | Weighted Average
| Shares |  | Grant Date
| (000s) |  | Fair Value
Outstanding at December 31, 2010 | 2,099 |  |  | $ | 16.85 |
Granted | 715 |  |  | 26.13 |
Vested | (1,106 | ) |  | 17.35 |
Forfeited | (47 | ) |  | 19.21 |
Outstanding at December 31, 2011 | 1,661 |  |  | 20.36 |
Schedule of Deferred Compensation Arrangement with Individual, Share-based Payments [Table Text Block] | Activity for cash-settled awards classified as a liability is as follows:
|  |  | Weighted Average
| Shares |  | Grant Date
| (000s) |  | Fair Value
Outstanding at December 31, 2010 | 102 |  |  | $ | 20.79 |
Granted | 85 |  |  | 26.22 |
Vested | (34 | ) |  | 20.79 |
Outstanding at December 31, 2011 | 153 |  |  | 23.80 |
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] | Stock option activity is summarized as follows:
|  |  |  |  | Remaining |  | Intrinsic
| Shares |  | Weighted Average |  | Contractual Term |  | Value
| (000s) |  | Exercise Price |  | (in years) |  | (000s)
Outstanding at December 31, 2010 | 3,357 |  |  | $ | 22.58 |  |  |  |  |
Granted | 216 |  |  | 26.29 |  |  |  |  |
Exercised | (657 | ) |  | 17.62 |  |  |  |  |
Expired | (1,439 | ) |  | 27.91 |  |  |  |  |
Outstanding at December 31, 2011 | 1,477 |  |  | 20.13 |  |  | 5.0 |  | $ | 3,811 |
Exercisable at December 31, 2011 | 947 |  |  | $ | 19.89 |  |  | 4.4 |  | $ | 2,414 |
Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block] | Compensation expense for the stock plans, as reported in our consolidated statements of income, is as follows:
| Year Ended December 31
| 2011 |  | 2010 |  | 2009
| (in millions of dollars)
Nonvested Stock Awards and Cash-Settled Awards | $ | 19.6 |  |  | $ | 20.7 |  |  | $ | 22.4 |
Performance Restricted Stock Units | 0.4 |  |  | 1.5 |  |  | 6.8 |
Stock Options | 2.7 |  |  | 2.5 |  |  | 3.7 |
Other | 0.8 |  |  | 0.5 |  |  | 1.0 |
Total Compensation Expense, Before Income Tax | $ | 23.5 |  |  | $ | 25.2 |  |  | $ | 33.9 |
Total Compensation Expense, Net of Income Tax | $ | 15.3 |  |  | $ | 17.2 |  |  | $ | 22.0 |

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- Definition Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 718 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph (h)(1) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of an equity-based arrangement (such as stock or unit options and stock or unit awards) with an individual employee, which is generally an employment contract between the entity and a selected officer or key employee containing a promise by the employer to pay certain equity-based awards at future dates, sometimes including a period after retirement, upon compliance with stipulated requirements. This type of arrangement is distinguished from broader based employee benefit plans as it is usually tailored to the employee. Disclosure also typically includes the amount of related compensation expense recognized during the reporting period, the number of shares or units issued during the period under such arrangements, and the carrying amount as of the balance sheet date of the related liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 710 -SubTopic 10 -Section 55 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6409961&loc=d3e20487-108367 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 710 -SubTopic 10 -Section 30 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20015-108363 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64, 65 -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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 710 -SubTopic 10 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6409961&loc=d3e20517-108367 Reference 5: 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 6: 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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- Definition Tabular disclosure of the changes in outstanding nonvested shares. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 718 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph (c)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + 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 -Topic 718 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph (c)(1) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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