Accounts Receivable (Tables)

6 Months Ended

Jun. 30, 2016

Accounts Receivable [Abstract]

Accounts Receivable

($ in millions)	June 30, 2016		December 31, 2015
Retail and Wholesale	$	1,020	$	569
Other		88		59
Less: Allowance for doubtful accounts		(74)		(57)
Accounts receivable, net	$	1,034	$	571

Allowance For Doubtful Accounts

	For the three months ended June 30,				For the six months ended June 30,
($ in millions)	2016		2015		2016		2015
Bad debt expense	$	34	$	12	$	48	$	25