Goodwill and Other Intangible Assets, Intangible Assets (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Intangible Assets
Weighted average useful lives of amortizable intangible assets	14 years
Gross Carrying Amount (definite-lived)	$ 6,324.9	$ 3,021.5
Accumulated Amortization	1,192.9	1,049.2
Net Carrying Amount, (definite-lived)	5,132.0	1,972.3
Indefinite-lived trade name intangible asset	269.1	269.1
Intangible assets, gross (excluding goodwill)	6,594.0	3,290.6
Net Carrying Amount, intangible assets	$ 5,401.1	2,241.4
Trade names
Intangible Assets
Weighted average useful lives of amortizable intangible assets	22 years
Gross Carrying Amount (definite-lived)	$ 603.3	11.3
Accumulated Amortization	9.2	2.2
Net Carrying Amount, (definite-lived)	$ 594.1	9.1
Customer relationships
Intangible Assets
Weighted average useful lives of amortizable intangible assets	14 years
Gross Carrying Amount (definite-lived)	$ 3,049.9	1,841.2
Accumulated Amortization	682.1	635.1
Net Carrying Amount, (definite-lived)	$ 2,367.8	1,206.1
Proprietary technology
Intangible Assets
Weighted average useful lives of amortizable intangible assets	14 years
Gross Carrying Amount (definite-lived)	$ 2,419.7	963.9
Accumulated Amortization	273.1	230.2
Net Carrying Amount, (definite-lived)	$ 2,146.6	733.7
Backlog and other
Intangible Assets
Weighted average useful lives of amortizable intangible assets	1 year
Gross Carrying Amount (definite-lived)	$ 252.0	205.1
Accumulated Amortization	228.5	181.7
Net Carrying Amount, (definite-lived)	$ 23.5	$ 23.4