Accounts Receivable (Tables)

6 Months Ended

Jun. 30, 2015

Accounts Receivable [Abstract]

Accounts Receivable

($ in millions)	June 30, 2015		December 31, 2014
Retail and Wholesale	$	551	$	630
Other		49		56
Less: Allowance for doubtful accounts		(59)		(72)
Accounts receivable, net	$	541	$	614