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Goodwill and Other Intangible Assets - Intangible Assets by Asset Type (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 4,230.8 | $ 4,158.1
Accumulated Amortization | (2,740.1) | (2,530.0)
Net Carrying Amount | 1,490.7 | 1,628.1
Customer relationships |  |
Intangible Assets [Line Items] |  |
Gross Carrying Amount | 3,352.4 | 3,330.9
Accumulated Amortization | (2,100.6) | (1,987.8)
Net Carrying Amount | 1,251.8 | $ 1,343.1
Trade name |  |
Intangible Assets [Line Items] |  |
Useful Life (Years) |  | 20 years
Gross Carrying Amount | 446.1 | $ 472.7
Accumulated Amortization | (341.0) | (302.0)
Net Carrying Amount | 105.1 | 170.7
Internally developed software |  |
Intangible Assets [Line Items] |  |
Gross Carrying Amount | 429.8 | 352.0
Accumulated Amortization | (297.6) | (239.8)
Net Carrying Amount | 132.2 | 112.2
Other |  |
Intangible Assets [Line Items] |  |
Gross Carrying Amount | 2.5 | 2.5
Accumulated Amortization | (0.9) | (0.4)
Net Carrying Amount | $ 1.6 | $ 2.1
Minimum | Customer relationships |  |
Intangible Assets [Line Items] |  |
Useful Life (Years) | 3 years | 3 years
Minimum | Trade name |  |
Intangible Assets [Line Items] |  |
Useful Life (Years) | 1 year | 1 year
Minimum | Internally developed software |  |
Intangible Assets [Line Items] |  |
Useful Life (Years) | 3 years | 3 years
Minimum | Other |  |
Intangible Assets [Line Items] |  |
Useful Life (Years) | 1 year | 1 year
Maximum | Customer relationships |  |
Intangible Assets [Line Items] |  |
Useful Life (Years) | 14 years | 14 years
Maximum | Trade name |  |
Intangible Assets [Line Items] |  |
Useful Life (Years) | 20 years |
Maximum | Internally developed software |  |
Intangible Assets [Line Items] |  |
Useful Life (Years) | 5 years | 5 years
Maximum | Other |  |
Intangible Assets [Line Items] |  |
Useful Life (Years) | 10 years | 10 years

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