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RECEIVABLES, PREPAYMENTS AND OTHER ASSETS - Schedule of Unbilled Accounts Receivable (Details) - USD ($)
$ in Millions
 9 Months Ended 12 Months Ended
Sep. 30, 2023
Dec. 31, 2022
Trade and other current receivables [abstract]    
Balance, beginning of period $ 24 $ 43
Revenue recognized during the period 73 87
Amounts invoiced (68) (106)
Balance, end of period $ 29 $ 24