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Goodwill and Other Intangible Assets, Intangible Assets (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
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Intangible Assets |  |
Weighted average useful lives of amortizable intangible assets | 11 years |
Gross Carrying Amount (definite-lived) | $ 1,800.8 | $ 1,261.8
Accumulated Amortization | 844.8 | 696.1
Net Carrying Amount, (definite-lived) | 956.0 | 565.7
Indefinite-lived trade name intangible asset | 269.1 | 269.1
Intangible assets, gross (excluding goodwill) | 2,069.9 | 1,530.9
Net Carrying Amount, intangible assets | $ 1,225.1 | 834.8
Customer relationships |  |
Intangible Assets |  |
Weighted average useful lives of amortizable intangible assets | 12 years |
Gross Carrying Amount (definite-lived) | $ 1,296.4 | 782.6
Accumulated Amortization | 519.8 | 450.6
Net Carrying Amount, (definite-lived) | $ 776.6 | 332.0
Proprietary technology |  |
Intangible Assets |  |
Weighted average useful lives of amortizable intangible assets | 13 years |
Gross Carrying Amount (definite-lived) | $ 350.3 | 365.1
Accumulated Amortization | 170.9 | 146.1
Net Carrying Amount, (definite-lived) | $ 179.4 | 219.0
Backlog and other |  |
Intangible Assets |  |
Weighted average useful lives of amortizable intangible assets | 1 year |
Gross Carrying Amount (definite-lived) | $ 154.1 | 114.1
Accumulated Amortization | 154.1 | 99.4
Net Carrying Amount, (definite-lived) | $ 0.0 | $ 14.7

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