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Supplementary Data (Tables) | 9 Months Ended
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Sep. 30, 2011
Supplementary Data [Abstract] |
Accrued Liabilities | The following table presents the components of accrued liabilities.
| September 30, 2011 |  | December 31, 2010
Salaries, benefits and related expenses | $ | 420.1 |  |  | $ | 470.0 |
Office and related expenses | 51.7 |  |  | 62.0 |
Acquisition obligations | 10.1 |  |  | 63.5 |
Interest | 24.2 |  |  | 41.5 |
Professional fees | 17.3 |  |  | 24.6 |
Other | 100.6 |  |  | 118.9 |
Total accrued liabilities | $ | 624.0 |  |  | $ | 780.5 |
Other Income (Expense), Net | Results of operations for the three and nine months ended September 30, 2011 and 2010 include certain items which are not directly associated with our revenue-producing operations.
| Three months ended September 30, |  | Nine months ended September 30,
| 2011 |  | 2010 |  | 2011 |  | 2010
Gains (losses) on sales of businesses and investments | $ | 132.0 |  |  | $ | 0.3 |  |  | $ | 125.8 |  |  | $ | (2.8 | )
Vendor discounts and credit adjustments | 4.8 |  |  | 0.3 |  |  | 7.7 |  |  | 2.4 |
Other income (expense), net | 0.3 |  |  | (3.7 | ) |  | 2.8 |  |  | (4.3 | )
Total other income (expense), net | $ | 137.1 |  |  | $ | (3.1 | ) |  | $ | 136.3 |  |  | $ | (4.7 | )

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