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Quarterly report pursuant to Section 13 or 15(d)

SUPPLEMENTARY FINANCIAL STATEMENT INFORMATION - Allowance for Credit Losses (Details)

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SUPPLEMENTARY FINANCIAL STATEMENT INFORMATION - Allowance for Credit Losses (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Accounts Receivable, Allowance for Credit Loss [Roll Forward] Ìý Ìý
Allowance for credit losses as of beginning of period $ (4) $ (4)
Decrease (increase) in allowance (3) 1
Allowance for credit losses as of end of period $ (7) $ (3)