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EQUITY - Schedule Of Expense Recognized For Share-Based Compensation (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Equity [abstract]    
Expense arising from equity-settled share-based payment transactions $ 81 $ 73
Expense arising from cash-settled share-based payment transactions 506 (64)
Total expense arising from share-based payment transactions 587 9
Effect of hedging program (500) 75
Total expense included in consolidated income $ 87 $ 84