Accounts Receivable (Tables)

9 Months Ended

Sep. 30, 2018

Accounts Receivable [Abstract]

Accounts Receivable

($ in millions)	September 30, 2018		December 31, 2017
Retail and wholesale	$	767	$	801
Other		83		87
Less: Allowance for doubtful accounts		(106)		(69)
Accounts receivable, net	$	744	$	819

Allowance For Doubtful Accounts

	For the three months ended September 30,				For the nine months ended September 30,
($ in millions)	2018		2017		2018		2017
Bad debt expense	$	21	$	26	$	62	$	83