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RELATED PARTY TRANSACTIONS (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Related party transactions [abstract]    
Salaries and short-term employee benefits $ 36 $ 33
Post-employment benefits 6 4
Share-based payments and other 25 45
Key management personnel compensation $ 67 $ 82