Goodwill and Other Intangible Assets - Schedule of Goodwill (Details) $ in Millions	9 Months Ended
	Sep. 30, 2025 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 19,312.9
Goodwill acquired	2,010.9
Other	(26.5)
Currency translation adjustments	39.4
Ending balance	21,336.7
Application Software
Goodwill [Roll Forward]
Beginning balance	14,677.6
Goodwill acquired	1,234.5
Other	(27.3)
Currency translation adjustments	25.2
Ending balance	15,910.0
Network Software
Goodwill [Roll Forward]
Beginning balance	3,706.4
Goodwill acquired	702.9
Other	0.4
Currency translation adjustments	13.5
Ending balance	4,423.2
Technology Enabled Products
Goodwill [Roll Forward]
Beginning balance	928.9
Goodwill acquired	73.5
Other	0.4
Currency translation adjustments	0.7
Ending balance	$ 1,003.5