Marketable Securities (Tables)

9 Months Ended

Sep. 30, 2012

Summary of Marketable Securities

	September 30, 2012						December 31, 2011
			Unrealized		Fair				Fair
	Cost		Gains		Value		Cost		Value
U.S. government securities	$	10	$	-	$	10	$	10	$	10
Corporate securities		12				12		8		8
Certificates of deposit		18				18		13		13
Other		23		1		24		25		25
Total marketable securities	$	63	$	1	$	64	$	56	$	56