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INCOME TAXES - Components of tax PL (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Current taxes      
Attributed to the current period $ (43) $ (66) $ (70)
Deferred taxes      
Income taxes – origination and reversal of temporary differences 160 185 78
Relating to change in tax rates / imposition of new tax laws (147) (7) 1
Relating to unrecognized temporary differences and tax losses 16 35 (52)
Deferred taxes, net 29 213 27
Total income tax recovery (expense) $ (14) $ 147 $ (43)