v3.25.1
Goodwill and Intangible Assets
 3 Months Ended
Mar. 31, 2025
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Intangible Assets Goodwill and Intangible Assets
Computer Software and Goodwill:
Computer softwareGoodwill
January 1, 2025$676.3 $3,409.8 
Additions at cost (1)
53.4 — 
Amortization(50.1)— 
Other (2)
12.2 35.2 
March 31, 2025$691.8 $3,445.0 
January 1, 2024$666.3 $3,445.8 
Additions at cost (1)
52.5 — 
Amortization(40.7)— 
Other (2)
(6.7)(21.1)
March 31, 2024$671.4 $3,424.7 

Other Intangibles:
Customer relationshipsReacquired rightsDatabaseOther indefinite-lived intangiblesOther intangiblesTotal
January 1, 2025$1,108.7 $200.3 $790.0 $1,280.0 $127.8 $3,506.8 
Additions at cost— — — — 0.2 0.2 
Amortization(47.9)(4.6)(34.2)— (4.1)(90.8)
Other (2)
3.6 10.6 3.0 — 1.6 18.8 
March 31, 2025$1,064.4 $206.3 $758.8 $1,280.0 $125.5 $3,435.0 
January 1, 2024$1,316.7 $233.9 $940.6 $1,280.0 $144.7 $3,915.9 
Additions at cost— — — — 0.1 0.1 
Amortization(52.4)(4.8)(37.7)— (4.1)(99.0)
Other (2)
(2.6)(6.3)(2.4)— (0.5)(11.8)
March 31, 2024$1,261.7 $222.8 $900.5 $1,280.0 $140.2 $3,805.2 
(1)Primarily related to software-related enhancements on products and purchased software.
(2)Primarily due to the impact of foreign currency fluctuations.