Accounts Receivable

12 Months Ended

Dec. 31, 2024

Receivables [Abstract]

Accounts Receivable

Note 8—Accounts Receivable

The following table presents details of our accounts receivable balances:

	Years Ended December 31,
	2024		2023
	(Dollars in millions)
Trade receivables	$	457	435
Earned and unbilled receivables	85		122
Other	2		1
Total accounts receivable	544		558
Less: allowance for credit losses	(12)		(13)
Accounts receivable, less allowance	$	532	545

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.