Accounts Receivable, Net (Tables)

6 Months Ended

Jun. 30, 2013

Receivables [Abstract]

Schedule of accounts receivable, net

Accounts receivable, net were as follows:

	June 30, 2013			December 31, 2012
Amounts billed or billable	$	2,790		$	2,639
Unbilled amounts	362			335
Allowance for doubtful accounts	(113		)	(108		)
Accounts Receivable, Net	$	3,039		$	2,866

Schedule of accounts receivables sales

Accounts receivables sales were as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2013		2012		2013		2012
Accounts receivable sales	$	919	$	1,215	$	1,773	$	2,090
Deferred proceeds	144		256		259		403
Loss on sales of accounts receivable	5		6		9		12
Estimated increase to operating cash flows(1)	17		169		33		100

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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.