Accounts Receivable, Net (Tables)

12 Months Ended

Dec. 31, 2018

Accounts receivable, net were as follows:



	December 31,
	2018			2017
Invoiced	$	999		$	1,048
Accrued ⁽¹⁾	333			368
Allowance for doubtful accounts	(56		)	(59		)
Accounts receivable, net	$	1,276		$	1,357

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(1)	Accrued amounts are normally invoiced to customers in the subsequent quarter.

Accounts receivable sales activity

Accounts receivable sales activity was as follows:



	Year Ended December 31,
	2018		2017		2016
Accounts receivable sales⁽¹⁾	$	405	$	1,733	$	2,267
Deferred proceeds ⁽²⁾	—		164		233
Loss on sale of accounts receivable	3		10		16

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(1)

Customers may also enter into structured-payable arrangements that require us to sell our receivables from that customer to a third-party financial institution, which then makes payments to us to settle the customer's receivable. In these instances, we ensure the sale of the receivables are bankruptcy-remote and the payment made to us is without recourse. The activity associated with these arrangements is not reflected in this disclosure, as payments under these arrangements have not been material and these are customer directed arrangements.


(2)	For sales arrangements terminated in the fourth quarter 2017, a portion of the sales proceeds was normally held back by the purchaser and payment was deferred until collection of the related sold receivables.