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EARNINGS (LOSS) PER SHARE - Antidilutive Securities (Details) - shares
shares in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Earnings per share [line items]    
Antidilutive securities (in shares) 12.0 3.3
Options    
Earnings per share [line items]    
Antidilutive securities (in shares) 5.1 3.3
Share units    
Earnings per share [line items]    
Antidilutive securities (in shares) 6.9 0.0