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ACQUISITIONS AND INVESTMENTS - Schedule Assets and Liabilities (Details) - USD ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Aug. 07, 2023 | Dec. 31, 2021
Business Acquisition [Line Items] |  |  |  |
Identifiable intangible assets | $ 242.7 | $ 187.4 | $ 241.9 |
Goodwill | 6,829.9 | 6,383.9 |  | $ 6,258.1
Acquired goodwill | 410.4 | 283.8 |  |
2021 Acquisitions |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Cash | 239.6 |  |  |
Accounts receivable and other current assets | 36.2 |  |  |
Other assets | 49.3 |  |  |
Identifiable intangible assets | 242.7 |  |  |
Goodwill | 413.2 |  |  |
Total assets acquired | 981.0 |  |  |
Total liabilities assumed | (107.7) |  |  |
Net assets acquired | $ 873.3 |  |  |
Acquired goodwill |  | 196.1 |  |
2020 Acquisitions |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Cash |  | 10.8 |  |
Accounts receivable and other current assets |  | 5.9 |  |
Other assets |  | 6.0 |  |
Identifiable intangible assets |  | 187.4 |  |
Goodwill |  | 283.9 |  |
Total assets acquired |  | 494.0 |  |
Total liabilities assumed |  | (49.4) |  |
Net assets acquired |  | $ 444.6 |  |

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