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SUPPLEMENTAL FINANCIAL INFORMATION - Allowance for Doubtful Accounts (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Allowance for Doubtful Accounts Receivable [Roll Forward]        
Balance at beginning of period $ 128 $ 125 $ 114 $ 122
Charged to costs and expenses 4 2 20 11
Write-offs (1) (2) (7) (4)
Currency translation adjustments 1 (5) 5 (9)
Balance at end of period $ 132 $ 120 $ 132 $ 120