Accounts Receivable (Tables)

9 Months Ended

Sep. 30, 2021

Receivables [Abstract]

Schedule of Accounts Receivable

Accounts receivable consist of the following:

(Dollars in millions)	September 30, 2021		December 31, 2020
Accounts receivable	$	98	$	104
Less allowance for doubtful accounts	(2)		(2)
Accounts receivable, net	$	96	$	102