Note 9. Marketable Securities

	June 30, 2012						December 31, 2011
			Unrealized		Fair				Fair
	Cost		Gains		Value		Cost		Value
U.S. government securities	$	8	$	-	$	8	$	10	$	10
Corporate securities		11				11		8		8
Certificates of deposit		12				12		13		13
Other		28		1		29		25		25
Total marketable securities	$	59	$	1	$	60	$	56	$	56

U.S. government securities include bonds issued by government-sponsored agencies and Treasury notes. Corporate securities include both debt and equity securities. Other consists of investments in mutual and index funds. U.S. government securities, corporate debt and certificates of deposit maturing in one year or less, after one year through five years and after five years total $14, $12 and $4 at June 30, 2012.

Proceeds from liquidating available-for-sale marketable securities prior to their scheduled maturities in the three and six months ended June 30 were zero and $1 in 2012 and $2 and $7 in 2011. The related gains and losses realized on this activity were not significant.