REVENUE RECOGNITION - Disaggregation of revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue [Line Items]
Revenues	$ 1,166.4	$ 444.7	$ 1,952.1	$ 593.0
Products and services transferred at point in time
Disaggregation of Revenue [Line Items]
Revenues	1,082.7	414.1	1,790.8	540.9
Products and services transferred over time
Disaggregation of Revenue [Line Items]
Revenues	83.7	30.6	161.3	52.1
Admissions
Disaggregation of Revenue [Line Items]
Revenues	651.0	233.0	1,094.8	302.5
Food and beverage
Disaggregation of Revenue [Line Items]
Revenues	396.7	161.5	649.2	211.6
Other theatre.
Disaggregation of Revenue [Line Items]
Revenues	118.7	50.2	208.1	78.9
Screen advertising
Disaggregation of Revenue [Line Items]
Revenues	32.3	19.7	61.2	36.6
Other theatre
Disaggregation of Revenue [Line Items]
Revenues	$ 86.4	$ 30.5	$ 146.9	$ 42.3