Accounts Receivable

12 Months Ended

Dec. 31, 2023

Receivables [Abstract]

Accounts Receivable

Accounts Receivable

The following table presents details of our accounts receivable balances:

	Years Ended December 31,
	2023		2022
	(Dollars in millions)
Trade receivables	$	435	440
Earned and unbilled receivables	122		94
Other	1		2
Total accounts receivable	558		536
Less: allowance for credit losses	(13)		(19)
Accounts receivable, less allowance	$	545	517

We are exposed to concentrations of credit risk from our customers and other telecommunications service providers. We generally do not require collateral to secure our receivable balances.