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INVESTMENTS, DEBT AND DERIVATIVES - Impact of hedge accounting on equity (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Disclosure of risk management strategy related to hedge accounting [line items]      
Equity at beginning of period $ 1,071 $ 767 $ 1,505
Other comprehensive loss (172) (617) (453)
Transfer from OCI to income statement on disposal of subsidiary (36) 3,414 558
Equity at end of period 1,257 1,071 767
Reserve of exchange differences on translation      
Disclosure of risk management strategy related to hedge accounting [line items]      
Equity at beginning of period (5,990) (8,808) (8,933)
Transfer from OCI to income statement on disposal of subsidiary   3,384  
Reclassification of net investment hedge   30  
Other comprehensive loss (147) (596) (437)
Transfer from OCI to income statement on disposal of subsidiary (36) 3,414 558
Equity at end of period $ (6,173) $ (5,990) $ (8,808)