Deferred Revenue And Remaining Performance Obligations (Tables)

6 Months Ended

Jun. 30, 2023

Revenue Recognition and Deferred Revenue [Abstract]

Schedule of Deferred Revenue and Performance Obligations

Changes in our deferred revenue during the second quarter of 2023 and 2022 were as follows: 

	Second Quarter of				First Two Quarters of
(In millions)	2023		2022		2023		2022
Beginning balance of the period	$	760.8	$	703.9	$	737.6	$	631.8
Revenue recognized from prior year-end	(141.7)		(127.2)		(435.2)		(361.8)
Billings net of revenue recognized from current year	126.5		108.5		443.2		415.2
Ending balance of the period	$	745.6	$	685.2	$	745.6	$	685.2