Accounts Receivable

9 Months Ended

Sep. 30, 2016

Accounts Receivable [Abstract]

Accounts Receivable

(4)   Accounts Receivable:

The components of accounts receivable, net are as follows:

($ in millions)	September 30, 2016		December 31, 2015
Retail and Wholesale	$	1,000	$	569
Other		115		59
Less: Allowance for doubtful accounts		(111)		(57)
Accounts receivable, net	$	1,004	$	571

We maintain an allowance for doubtful accounts based on our estimate of our ability to collect accounts receivable. Bad debt expense, which is recorded as a reduction to revenue, was as follows:

	For the three months ended September 30,				For the nine months ended September 30,
($ in millions)	2016		2015		2016		2015
Bad debt expense	$	56	$	21	$	104	$	46