Contract Balances (Tables)

12 Months Ended

Dec. 31, 2023

Revenue from Contract with Customer [Abstract]

Schedule of Contract Balances

Contract balances at December 31 are set forth in the following table:

Balance sheet account	2023		2022		Change
Unbilled receivables	$	106.4	$	91.5	$	14.9
Deferred revenue – current	(1,583.8)		(1,370.7)		(213.1)
Deferred revenue – non-current	(130.7)		(111.5)		(19.2)
Net contract assets/(liabilities)	$	(1,608.1)	$	(1,390.7)	$	(217.4)