Accounts Receivable, Net (Tables)

3 Months Ended

Mar. 31, 2013

Receivables [Abstract]

Schedule of accounts receivable, net

Accounts receivable, net were as follows:

	March 31, 2013			December 31, 2012
Amounts billed or billable	$	2,825		$	2,639
Unbilled amounts	349			335
Allowance for doubtful accounts	(109		)	(108		)
Accounts Receivable, Net	$	3,065		$	2,866

Schedule of accounts receivables sales

Accounts receivables sales were as follows:

	Three Months Ended March 31,
	2013		2012
Accounts receivable sales	$	854	$	875
Deferred proceeds	115		147
Loss on sales of accounts receivable	4		6
Estimated increase (decrease) to operating cash flows(1)	16		(68		)

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