SHARE CAPITAL - Movements in Shares Issued and Outstanding (Details) - shares shares in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Equity [Abstract]
Preferred shares issued (in shares)	4.0	4.0
Preferred shares outstanding (in shares)	4.0	4.0
Common shares issued	566.1	566.1	566.1
Less: Treasury shares for which dividend and voting rights do not apply	(116.6)	(111.3)	(104.9)
Common shares outstanding	449.5	454.8	461.2