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Supplementary Data (Notes) | 6 Months Ended
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Jun. 30, 2016
Supplementary Data [Abstract] |
Accrued Liabilities | The following table presents the components of accrued liabilities.
| June 30, 2016 |  | December 31, 2015
Salaries, benefits and related expenses | $ | 333.6 |  |  | $ | 502.4 |
Acquisition obligations | 68.8 |  |  | 50.1 |
Office and related expenses | 43.6 |  |  | 51.0 |
Interest | 16.7 |  |  | 17.3 |
Other | 125.7 |  |  | 139.5 |
Total accrued liabilities | $ | 588.4 |  |  | $ | 760.3 |
Other Income, Net | Other (Expense) Income, Net Results of operations for the three and six months ended June 30, 2016 and 2015 include certain items that are not directly associated with our revenue-producing operations.
| Three months ended June 30, |  | Six months ended June 30,
| 2016 |  | 2015 |  | 2016 |  | 2015
Losses on sales of businesses and investments | $ | (2.2 | ) |  | $ | (0.1 | ) |  | $ | (18.5 | ) |  | $ | (0.2 | )
Other income, net | 2.1 |  |  | 0.6 |  |  | 1.3 |  |  | 1.0 |
Total other (expense) income, net | $ | (0.1 | ) |  | $ | 0.5 |  |  | $ | (17.2 | ) |  | $ | 0.8 |
Losses on Sales of Businesses and Investments – During the three and six months ended June 30, 2016, the amounts recognized are related to sales of businesses within our IAN segment. Assets held for sale of $5.3 and liabilities held for sale of $5.3 are included in Other current assets and Accrued liabilities, respectively, on our Consolidated Balance Sheet as of June 30, 2016. These assets and liabilities held for sale, which primarily consist of accounts receivable and accounts payable, respectively, are related to sales of businesses expected to be completed within the next twelve months.
Share Repurchase Program | Share Repurchase Program In February 2016, our Board of Directors (the "Board") authorized a new share repurchase program to repurchase from time to time up to $300.0, excluding fees, of our common stock, which was in addition to the remaining amount available to be repurchased from the $300.0 authorization made by the Board in February 2015. We may effect such repurchases through open market purchases, trading plans established in accordance with SEC rules, derivative transactions or other means. We expect to continue to repurchase our common stock in future periods, although the timing and amount of the repurchases will depend on market conditions and other funding requirements. The following table presents our share repurchase activity under our share repurchase programs for the six months ended June 30, 2016 and 2015.
| Six months ended June 30,
| 2016 |  | 2015
Number of shares repurchased | 5.0 |  |  | 4.9 |
Aggregate cost, including fees | $ | 112.5 |  |  | $ | 102.0 |
Average price per share, including fees | $ | 22.47 |  |  | $ | 20.87 |
As of June 30, 2016, $346.2 remains available for repurchase under the share repurchase programs. The share repurchase programs have no expiration date.

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