Credit Losses on Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2022

Credit Loss [Abstract]

Activity in allowance for credit losses

The following table presents the activity of our allowance for credit losses for our accounts receivable portfolio:

	(Dollars in millions)
Beginning balance at December 31, 2021	$	39
Provision for expected losses	2
Write-offs charged against the allowance	(5)
Ending balance at March 31, 2022	$	36

(1)As of both March 31, 2022 and December 31, 2021, amount excludes allowance for credit losses classified as held for sale of $3 million. See Note 2—Planned Divestiture of the Latin American Business