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Supplementary Data Accrued Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2019
Accrued Liabilities [Abstract] |
Schedule of Accrued Liabilities [Table Text Block] | Accrued Liabilities The following table presents the components of accrued liabilities.
| December 31,
| 2019 |  | 2018
Salaries, benefits and related expenses | $ | 494.1 |  |  | $ | 494.9 |
Acquisition obligations | 45.7 |  |  | 65.7 |
Office and related expenses | 26.9 |  |  | 52.2 |
Interest | 38.8 |  |  | 43.6 |
Restructuring charges | 1.6 |  |  | 0.0 |
Other | 135.7 |  |  | 150.5 |
Total accrued liabilities | $ | 742.8 |  |  | $ | 806.9 |

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- Definition Tabular disclosure of the components of accrued liabilities. + References No definition available. + Details
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