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FINANCING ARRANGEMENTS - Gain (Loss) on Extinguishment of Debt (Details) - USD ($)
3 Months Ended 6 Months Ended
May 10, 2022
Jun. 08, 2021
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Debt Instrument [Line Items]            
Repayments of long-term debt         $ 7,083,000,000 $ 2,100,000,000
Gain (loss) on extinguishment of debt $ (63,000,000) $ (38,000,000) $ 113,000,000 $ (45,000,000) 113,000,000 $ (50,000,000)
Senior Unsecured Notes            
Debt Instrument [Line Items]            
Repurchased principal amount     481,000,000   $ 481,000,000  
Repayments of long-term debt     300,000,000      
Gain (loss) on extinguishment of debt     $ 176,000,000