Accounts Receivable

6 Months Ended

Jun. 30, 2017

Accounts Receivable [Abstract]

Accounts Receivable

(4)Accounts Receivable:

The components of accounts receivable, net are as follows:

($ in millions)	June 30, 2017		December 31, 2016
Retail and wholesale	$	778	$	979
Other		84		90
Less: Allowance for doubtful accounts		(73)		(131)
Accounts receivable, net	$	789	$	938

We maintain an allowance for doubtful accounts based on our estimate of our ability to collect accounts receivable. During the second quarter of 2017 we resolved settlements with carriers resulting in a reduction to our reserves of approximately $35 million. Bad debt expense, which is recorded as a reduction to revenue, was as follows:

	For the three months ended June 30,				For the six months ended June 30,
($ in millions)	2017		2016		2017		2016
Bad debt expense	$	25	$	34	$	57	$	48