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INCOME TAX EXPENSE - Schedule of Components of Income Tax Expense (Recovery) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Current tax        
Current tax $ 246 $ 206 $ 428 $ 483
Deferred tax        
Deferred tax expense (income) 18 73 41 97
Income tax expense $ 264 $ 279 $ 469 $ 580