Accounts Receivable (Tables)

9 Months Ended

Sep. 30, 2015

Accounts Receivable [Abstract]

Accounts Receivable

($ in millions)	September 30, 2015		December 31, 2014
Retail and Wholesale	$	551	$	630
Other		58		56
Less: Allowance for doubtful accounts		(55)		(72)
Accounts receivable, net	$	554	$	614