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ACQUISITIONS AND INVESTMENTS (Schedule Assets and Liabilities) (Details) - USD ($) $ in Millions | Mar. 10, 2016 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | --- | --- | ---
Business Acquisition [Line Items] |  |  |  |
Identifiable intangible assets |  | $ 51.0 | $ 681.0 |
Goodwill |  | 4,184.0 | 3,974.3 | $ 2,571.0
2017 Acquisitions |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Cash |  | 4.3 |  |
Accounts receivable and other current assets |  | 3.2 |  |
Other assets |  | 0.4 |  |
Identifiable intangible assets |  | 51.0 |  |
Goodwill |  | 92.4 |  |
Total assets acquired |  | 151.3 |  |
Debt |  | 0.0 |  |
Other current liabilities |  | (5.1) |  |
Other liabilities |  | (10.9) |  |
Non-controlling interest |  | 0.0 |  |
Net assets acquired |  | $ 135.3 |  |
2016 Acquisitions |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Cash |  |  | 23.7 |
Accounts receivable and other current assets |  |  | 39.6 |
Other assets |  |  | 42.0 |
Identifiable intangible assets |  |  | 681.0 |
Goodwill |  |  | 1,456.3 |
Total assets acquired |  |  | 2,242.6 |
Debt |  |  | (189.5) |
Other current liabilities |  |  | (40.2) |
Other liabilities |  |  | (178.1) |
Non-controlling interest |  |  | (11.7) |
Net assets acquired |  |  | $ 1,823.1 |
Veda |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Debt, extinguished | $ 191.0 |  |  |

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