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Acquisitions and Dispositions - Schedule of Preliminary Allocation of Assets and Liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
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Business Acquisition [Line Items] |  |  |  |  |  |
Operating lease right-of-use assets |  | $ 414.0 |  | $ 365.7 |  |
Goodwill | [2] | 1,586.8 | [1] | 1,628.1 | [1] | $ 1,722.2
Long-term operating lease liability |  | $ (323.2) |  | $ (266.6) |  |
[1] | Balances were net of accumulated impairment loss of $749.3 and $694.2 as of December 31, 2023 and 2022, respectively.
[2] | Balances were net of accumulated impairment loss of $694.2 ($177.0 related to Northern Europe, $3.8 related to APME, $235.2 related to Right Management and $278.2 related to Corporate) as of December 31, 2022; and $749.3 ($232.1 related to Northern Europe, $3.8 related to APME, $235.2 related to Right Management and $278.2 related to Corporate) as of December 31, 2023.

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