Credit Losses on Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2020

Credit Loss [Abstract]

Financing Receivable, Allowance for Credit Loss

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

(Dollars in millions)	Business		Consumer	Total
Beginning balance at January 1, 2020 (1)	$	58	37	95
Provision for expected losses	82		55	137
Write-offs charged against the allowance	(53)		(52)	(105)
Recoveries collected	18		13	31
Foreign currency exchange rate changes adjustment	(2)		—	(2)
Ending balance at September 30, 2020	$	103	53	156

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(1)The beginning balance includes the cumulative effect of the adoption of new credit loss standard.