Goodwill and Other Intangible Assets, Intangible Assets (Details) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Intangible Assets
Weighted average useful lives of amortizable intangible assets	12 years
Gross Carrying Amount (definite-lived)	$ 2,628.0	$ 1,800.8
Accumulated Amortization	895.6	844.8
Net Carrying Amount, (definite-lived)	1,732.4	956.0
Indefinite-lived trade name intangible asset	269.1	269.1
Intangible assets, gross (excluding goodwill)	2,897.1	2,069.9
Net Carrying Amount, intangible assets	$ 2,001.5	1,225.1
Customer relationships
Intangible Assets
Weighted average useful lives of amortizable intangible assets	12 years
Gross Carrying Amount (definite-lived)	$ 1,523.1	1,296.4
Accumulated Amortization	547.5	519.8
Net Carrying Amount, (definite-lived)	$ 975.6	776.6
Proprietary technology
Intangible Assets
Weighted average useful lives of amortizable intangible assets	14 years
Gross Carrying Amount (definite-lived)	$ 930.8	350.3
Accumulated Amortization	183.8	170.9
Net Carrying Amount, (definite-lived)	$ 747.0	179.4
Backlog and other
Intangible Assets
Weighted average useful lives of amortizable intangible assets	1 year
Gross Carrying Amount (definite-lived)	$ 174.1	154.1
Accumulated Amortization	164.3	$ 154.1
Net Carrying Amount, (definite-lived)	$ 9.8