Accounts Receivable, Net

9 Months Ended

Sep. 30, 2016

Accounts receivable, net were as follows:



	September 30, 2016			December 31, 2015
Amounts billed or billable	$	1,067		$	963
Unbilled amounts	360			289
Allowance for doubtful accounts	(7		)	(6		)
Accounts Receivable, Net	$	1,420		$	1,246

Unbilled amounts include amounts associated with percentage-of-completion accounting and other earned revenues not currently billable due to contractual provisions. Amounts to be invoiced in the subsequent month for current services provided are included in amounts billable, and at September 30, 2016 and December 31, 2015 were approximately $464 and $443, respectively.

We perform ongoing credit evaluations of our customers and adjust credit limits based upon customer payment history and current creditworthiness. The allowance for uncollectible accounts receivables is determined principally on the basis of past collection experience, as well as consideration of current economic conditions and changes in our customer collection trends.

Accounts Receivable Sales Arrangements

Accounts receivable sales arrangements are utilized in the normal course of business as part of our cash and liquidity management. We have facilities in the U.S. and Europe that enable us to sell certain accounts receivable without recourse to third-parties. The accounts receivables sold are generally short-term trade receivables with payment due dates of less than 60 days. Our arrangements involve the sale of our entire interest in groups of accounts receivable for cash.

Under the agreements, we continue to service the sold accounts receivable. A servicing liability is recorded for the estimated fair value of the servicing. The amounts associated with the servicing liability were not material.

Of the accounts receivables sold and derecognized from our balance sheet, $63 and $136 remained uncollected as of September 30, 2016 and December 31, 2015, respectively. Accounts receivable sales were as follows:



	Three Months Ended September 30,					Nine Months Ended September 30,
	2016			2015		2016			2015
Accounts receivable sales	$	74		$	60	$	228		$	179
Estimated Increase (decrease) to operating cash flows⁽¹⁾	(1		)	1		(73		)	(19		)

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(1)	Represents the difference between current and prior period receivable sales adjusted for the effects of: (i) the deferred proceeds, (ii) collections prior to the end of the quarter and, (iii) currency.