Accounts Receivable (Tables)

12 Months Ended

Dec. 31, 2022

Schedule of components of accounts receivable

The following table presents details of our accounts receivable balances:


	As of December 31,
	2022		2021
	(Dollars in millions)
Trade and purchased receivables	$	1,288	1,281
Earned and unbilled receivables	209		315
Other	65		62
Total accounts receivable	1,562		1,658
Less: allowance for credit losses	(85)		(114)
Accounts receivable, less allowance	$	1,477	1,544

Schedule of details of allowance for doubtful accounts

The following table presents details of our allowance for credit losses accounts:


	Beginning Balance		Additions	Deductions	Ending Balance
	(Dollars in millions)
2022	$	114	133	(162)	85
2021	191		105	(182)	114
2020(1)	106		189	(104)	191

_______________________________________________________________________________

(1)On January 1, 2020, we adopted ASU 2016-13 "Measurement of Credit Losses on Financial Instruments" and recognized a cumulative adjustment to our accumulated deficit as of the date of adoption of $9 million, net of a $2 million tax effect. This adjustment is included within "Deductions." See Note 6—Credit Losses on Financial Instruments for more information.