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Supplementary Data (Tables) | 3 Months Ended
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Mar. 31, 2016
Supplementary Data (Tables) [Abstract] |
Accrued Liabilities | The following table presents the components of accrued liabilities.
| March 31, 2016 |  | December 31, 2015
Salaries, benefits and related expenses | $ | 333.2 |  |  | $ | 502.4 |
Acquisition obligations | 72.5 |  |  | 50.1 |
Office and related expenses | 43.0 |  |  | 51.0 |
Interest | 16.7 |  |  | 17.3 |
Restructuring and other reorganization-related | 2.8 |  |  | 3.3 |
Other | 152.4 |  |  | 136.2 |
Total accrued liabilities | $ | 620.6 |  |  | $ | 760.3 |
Accrued Liabilities The following table presents the components of accrued liabilities.
| March 31, 2016 |  | December 31, 2015
Salaries, benefits and related expenses | $ | 333.2 |  |  | $ | 502.4 |
Acquisition obligations | 72.5 |  |  | 50.1 |
Office and related expenses | 43.0 |  |  | 51.0 |
Interest | 16.7 |  |  | 17.3 |
Restructuring and other reorganization-related | 2.8 |  |  | 3.3 |
Other | 152.4 |  |  | 136.2 |
Total accrued liabilities | $ | 620.6 |  |  | $ | 760.3 |
Other (Expense) Income, Net | Results of operations for the three months ended March 31, 2016 and 2015, include certain items that are not directly associated with our revenue-producing operations.
| Three months ended March 31,
| 2016 |  | 2015
Losses on sales of businesses and investments | $ | (16.3 | ) |  | $ | (0.1 | )
Other (expense) income, net | (0.8 | ) |  | 0.4 |
Total other (expense) income, net | $ | (17.1 | ) |  | $ | 0.3 |
Share Repurchase Program [Table Text Block] | The following table presents our share repurchase activity under our share repurchase programs for the three months ended March 31, 2016 and 2015.
| Three months ended March 31,
| 2016 |  | 2015
Number of shares repurchased | 2.5 |  |  | 2.5 |
Aggregate cost, including fees | $ | 53.7 |  |  | $ | 51.2 |
Average price per share, including fees | $ | 21.67 |  |  | $ | 20.84 |

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