Other Intangible Assets, Net and Goodwill - Intangible Assets by Major Class (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Goodwill And Intangible Assets [Line Items]
Definite-lived intangible assets, Gross	$ 11,861.1	$ 11,605.0
Definite-lived intangible assets, Accumulated Amortization	(3,291.3)	(2,755.3)
Definite-lived intangible assets, Net	8,569.8	8,849.7
Total intangible assets, Gross	12,018.0	11,761.9
Other intangible assets, net	8,726.7	9,006.6
Trade names
Goodwill And Intangible Assets [Line Items]
Indefinite-lived intangible assets:	156.9	156.9
Customer relationships
Goodwill And Intangible Assets [Line Items]
Definite-lived intangible assets, Gross	7,850.2	7,819.9
Definite-lived intangible assets, Accumulated Amortization	(1,445.1)	(1,177.2)
Definite-lived intangible assets, Net	6,405.1	6,642.7
Technology and content
Goodwill And Intangible Assets [Line Items]
Definite-lived intangible assets, Gross	2,858.8	2,798.3
Definite-lived intangible assets, Accumulated Amortization	(1,190.3)	(1,009.1)
Definite-lived intangible assets, Net	1,668.5	1,789.2
Computer software
Goodwill And Intangible Assets [Line Items]
Definite-lived intangible assets, Gross	1,062.6	897.9
Definite-lived intangible assets, Accumulated Amortization	(598.5)	(516.4)
Definite-lived intangible assets, Net	464.1	381.5
Trade names and other
Goodwill And Intangible Assets [Line Items]
Definite-lived intangible assets, Gross	89.5	88.9
Definite-lived intangible assets, Accumulated Amortization	(57.4)	(52.6)
Definite-lived intangible assets, Net	$ 32.1	$ 36.3