Accounts Receivable (Tables)

3 Months Ended

Mar. 31, 2015

Accounts Receivable [Abstract]

Accounts Receivable

($ in millions)	March 31, 2015		December 31, 2014
Retail and Wholesale	$	539	$	630
Other		46		56
Less: Allowance for doubtful accounts		(59)		(72)
Accounts receivable, net	$	526	$	614