v3.26.1
Goodwill and Intangible Assets (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Changes in Goodwill          
Goodwill, January 1     $ 18,641.4 $ 10,677.4  
Goodwill, Acquisitions*     155.1 2.4  
Goodwill, Noncontrolling interests in acquired businesses     13.5 2.6  
Goodwill, Contingent purchase price obligations of acquired businesses     13.5 2.5  
Goodwill, Dispositions     (21.6) (20.9)  
Goodwill, Foreign currency translation     (61.2) 337.8  
Goodwill, June 30 $ 18,740.7 $ 11,001.8 18,740.7 11,001.8  
Goodwill, impairment losses     0.0 0.0  
Goodwill, accumulated impairment losses 0.0   0.0    
Intangible assets:          
Intangible assets, Gross Carrying Value 5,935.9   5,935.9   $ 6,004.2
Intangible assets, Accumulated Amortization (1,101.4)   (1,101.4)   (903.2)
Intangible assets, Net Carrying Value 4,834.5   4,834.5   5,101.0
Amortization of intangible assets 117.7 23.8 235.1 49.6  
Acquired intangible assets and internally developed strategic platform assets          
Intangible assets:          
Intangible assets, Gross Carrying Value 5,646.9   5,646.9   5,728.6
Intangible assets, Accumulated Amortization (870.6)   (870.6)   (660.2)
Intangible assets, Net Carrying Value 4,776.3   4,776.3   5,068.4
Amortization of intangible assets 110.7 19.8 221.6 41.6  
Trade Names          
Intangible assets:          
Intangible assets, Gross Carrying Value 922.5   922.5   929.9
Intangible assets, Accumulated Amortization (115.2)   (115.2)   (76.5)
Intangible assets, Net Carrying Value 807.3   807.3   853.4
Customer Relationships          
Intangible assets:          
Intangible assets, Gross Carrying Value 4,366.8   4,366.8   4,389.5
Intangible assets, Accumulated Amortization (643.2)   (643.2)   (504.1)
Intangible assets, Net Carrying Value 3,723.6   3,723.6   3,885.4
Technology and Other          
Intangible assets:          
Intangible assets, Gross Carrying Value 357.6   357.6   409.2
Intangible assets, Accumulated Amortization (112.2)   (112.2)   (79.6)
Intangible assets, Net Carrying Value 245.4   245.4   329.6
Other purchased and internally developed software          
Intangible assets:          
Intangible assets, Gross Carrying Value 289.0   289.0   275.6
Intangible assets, Accumulated Amortization (230.8)   (230.8)   (243.0)
Intangible assets, Net Carrying Value 58.2   58.2   $ 32.6
Amortization of intangible assets $ 7.0 $ 4.0 $ 13.5 $ 8.0