Credit Losses (Tables)

6 Months Ended

Jun. 30, 2020

Credit Loss [Abstract]

Accounts Receivable, Allowance for Credit Loss

The following table summarizes the activity for the allowance for credit losses for the six months ended June 30, 2020:

($ in millions)	Trade Receivables Allowance for Credit Losses
January 1, 2020	$22
Current-period provision for credit losses (a)	39
Trade receivables written off as uncollectible, net of recoveries	(8)
Foreign currency impact	(1)
June 30, 2020	$52

(a) Includes expense recorded from customer bad debts and a $30 million adjustment recorded in the first quarter 2020 related to COVID-19.