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FAIR VALUE MEASUREMENTS - Fair Value of Financial Assets and Liabilities (Details) - USD ($)
$ in Millions
Jun. 30, 2022
Dec. 31, 2021
Carrying amount    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial assets $ 538 $ 849
Financial liabilities 5,663 5,623
Carrying amount | Debt    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial liabilities 5,144 5,150
Carrying amount | Other liabilities    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial liabilities 519 473
Carrying amount | Other assets    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial assets 405 382
Carrying amount | Other investments [Member]    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial assets 74 414
Carrying amount | Derivatives    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial assets 59 53
At fair value [member]    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial assets 538 849
Financial liabilities 5,999 7,401
At fair value [member] | Debt    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial liabilities 5,480 6,928
At fair value [member] | Other liabilities    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial liabilities 519 473
At fair value [member] | Other assets    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial assets 405 382
At fair value [member] | Other investments [Member]    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial assets 74 414
At fair value [member] | Derivatives    
Disclosure of fair value measurement of assets and liabilities [Line Items]    
Financial assets $ 59 $ 53