Goodwill and Other Intangible Assets, Intangible Assets (Details) - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024
Intangible Assets
Weighted average useful lives of amortizable intangible assets	12 years
Gross Carrying Amount (definite-lived)	$ 2,663.8	$ 1,800.8
Accumulated Amortization	943.5	844.8
Net Carrying Amount, (definite-lived)	1,720.3	956.0
Indefinite-lived trade name intangible asset	269.1	269.1
Intangible assets, gross (excluding goodwill)	2,932.9	2,069.9
Net Carrying Amount, intangible assets	$ 1,989.4	1,225.1
Customer relationships
Intangible Assets
Weighted average useful lives of amortizable intangible assets	12 years
Gross Carrying Amount (definite-lived)	$ 1,553.1	1,296.4
Accumulated Amortization	580.7	519.8
Net Carrying Amount, (definite-lived)	$ 972.4	776.6
Proprietary technology
Intangible Assets
Weighted average useful lives of amortizable intangible assets	14 years
Gross Carrying Amount (definite-lived)	$ 931.9	350.3
Accumulated Amortization	198.3	170.9
Net Carrying Amount, (definite-lived)	$ 733.6	179.4
Backlog and other
Intangible Assets
Weighted average useful lives of amortizable intangible assets	1 year
Gross Carrying Amount (definite-lived)	$ 178.8	154.1
Accumulated Amortization	164.5	154.1
Net Carrying Amount, (definite-lived)	$ 14.3	$ 0.0