Credit Losses on Financial Instruments (Tables)

3 Months Ended

Mar. 31, 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)
Beginning balance at January 1, 2020 (1)	$	35
Current period provision for expected losses	13
Write-offs charged against the allowance	(16		)
Recoveries collected	5
Ending Balance at March 31, 2020	$	37

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(1)

The beginning balance includes the cumulative effect of the adoption of new credit loss standard