Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Amortized intangible assets:
Accumulated Amortization	$ (1,227.1)	$ (953.6)
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Gross Carrying Amount	5,139.8	4,750.8
Accumulated Amortization	(1,227.1)	(953.6)
Net Carrying Amount	3,912.7	3,797.2
Tradenames
Unamortized intangible assets:
Carrying amount	1,565.4	1,491.3
Customer lists and relationships
Amortized intangible assets:
Gross Carrying Amount	3,055.0	2,835.0
Accumulated Amortization	(1,048.3)	(841.3)
Net Carrying Amount	2,006.7	1,993.7
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Accumulated Amortization	(1,048.3)	(841.3)
Technology
Amortized intangible assets:
Gross Carrying Amount	356.4	279.9
Accumulated Amortization	(77.8)	(38.1)
Net Carrying Amount	278.6	241.8
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Accumulated Amortization	(77.8)	(38.1)
Tradenames
Amortized intangible assets:
Gross Carrying Amount	47.8	41.8
Accumulated Amortization	(19.0)	(15.6)
Net Carrying Amount	28.8	26.2
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Accumulated Amortization	(19.0)	(15.6)
Backlog
Amortized intangible assets:
Gross Carrying Amount	8.1	0.0
Accumulated Amortization	(5.1)	0.0
Net Carrying Amount	3.0	0.0
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Accumulated Amortization	(5.1)	0.0
Other
Amortized intangible assets:
Gross Carrying Amount	107.1	102.8
Accumulated Amortization	(76.9)	(58.6)
Net Carrying Amount	30.2	44.2
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Accumulated Amortization	$ (76.9)	$ (58.6)