Goodwill and Other Intangible Assets, Intangible Assets (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Intangible Assets
Useful lives	11 years
Gross Carrying Amount (definite-lived)	$ 1,802.4	$ 1,261.8
Accumulated Amortization	824.5	696.1
Net Carrying Amount, (definite-lived)	977.9	565.7
Indefinite-lived trade name intangible asset	269.1	269.1
Intangible assets, gross (excluding goodwill)	2,071.5	1,530.9
Net Carrying Amount, intangible assets	$ 1,247.0	834.8
Customer relationships
Intangible Assets
Useful lives	12 years
Gross Carrying Amount (definite-lived)	$ 1,296.7	782.6
Accumulated Amortization	505.2	450.6
Net Carrying Amount, (definite-lived)	$ 791.5	332.0
Proprietary technology
Intangible Assets
Useful lives	13 years
Gross Carrying Amount (definite-lived)	$ 351.2	365.1
Accumulated Amortization	164.8	146.1
Net Carrying Amount, (definite-lived)	$ 186.4	219.0
Backlog and other
Intangible Assets
Useful lives	1 year
Gross Carrying Amount (definite-lived)	$ 154.5	114.1
Accumulated Amortization	154.5	99.4
Net Carrying Amount, (definite-lived)	$ 0.0	$ 14.7