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INTANGIBLE ASSETS - Net Amounts (Details) - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Disclosure of detailed information about intangible assets [line items]      
Net intangible assets $ 14,386 $ 11,635  
Cost      
Disclosure of detailed information about intangible assets [line items]      
Net intangible assets 15,695 12,515 $ 10,470
Accumulated amortization      
Disclosure of detailed information about intangible assets [line items]      
Net intangible assets $ (1,309) $ (880) $ (576)