Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Amortized intangible assets
Accumulated Amortization	$ (1,784.0)	$ (1,526.8)
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Gross Carrying Amount	5,457.0	5,105.4
Accumulated Amortization	(1,784.0)	(1,526.8)
Net Carrying Amount	3,673.0	3,578.6
Tradenames
Unamortized intangible assets
Carrying amount	1,632.1	1,555.5
Customer lists and relationships
Amortized intangible assets
Gross Carrying Amount	3,238.6	3,029.0
Accumulated Amortization	(1,485.5)	(1,286.1)
Net Carrying Amount	1,753.1	1,742.9
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Accumulated Amortization	(1,485.5)	(1,286.1)
Technology
Amortized intangible assets
Gross Carrying Amount	408.5	360.0
Accumulated Amortization	(163.7)	(124.5)
Net Carrying Amount	244.8	235.5
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Accumulated Amortization	(163.7)	(124.5)
Tradenames
Amortized intangible assets
Gross Carrying Amount	51.1	46.2
Accumulated Amortization	(26.3)	(22.7)
Net Carrying Amount	24.8	23.5
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Accumulated Amortization	(26.3)	(22.7)
Backlog
Amortized intangible assets
Gross Carrying Amount	11.3	1.0
Accumulated Amortization	(6.8)	(0.3)
Net Carrying Amount	4.5	0.7
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Accumulated Amortization	(6.8)	(0.3)
Other
Amortized intangible assets
Gross Carrying Amount	115.4	113.7
Accumulated Amortization	(101.7)	(93.2)
Net Carrying Amount	13.7	20.5
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Accumulated Amortization	$ (101.7)	$ (93.2)