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Quarterly report pursuant to Section 13 or 15(d)

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

v3.22.1
SUPPLEMENTARY FINANCIAL STATEMENT INFORMATION - Allowance for Credit Losses (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Accounts Receivable, Allowance for Credit Loss [Roll Forward] Ìý Ìý
Allowance for credit losses as of beginning of period $ (4) $ (5)
Increase in allowance 0 (1)
Allowance for credit losses as of end of period $ (4) $ (6)