Goodwill and Other Intangible Assets - Schedule of Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Goodwill [Roll Forward]
Beginning balances	$ 13,476.3	$ 13,338.4
Goodwill acquired	2,559.1	138.8
Currency translation adjustments	(89.8)	(8.7)
Reclassifications and other	0.5	7.8
Ending balances	15,946.1	13,476.3
Application Software
Goodwill [Roll Forward]
Beginning balances	8,889.3	8,802.3
Goodwill acquired	2,559.1	85.9
Currency translation adjustments	(32.1)	(5.8)
Reclassifications and other	1.2	6.9
Ending balances	11,417.5	8,889.3
Network Software
Goodwill [Roll Forward]
Beginning balances	3,655.3	3,604.5
Goodwill acquired	0.0	52.9
Currency translation adjustments	(56.3)	(3.0)
Reclassifications and other	(0.7)	0.9
Ending balances	3,598.3	3,655.3
Technology Enabled Products
Goodwill [Roll Forward]
Beginning balances	931.7	931.6
Goodwill acquired	0.0	0.0
Currency translation adjustments	(1.4)	0.1
Reclassifications and other	0.0	0.0
Ending balances	$ 930.3	$ 931.7