Marketable Securities

12 Months Ended

Dec. 31, 2016

Investments, Debt and Equity Securities [Abstract]

Marketable Securities [Text Block]

Marketable Securities

	2016						2015
	Cost		Unrealized Gains (Losses)		Fair Value		Cost		Unrealized Gains (Losses)		Fair Value
U.S. government securities	$	2	$	—	$	2	$	38	$	—	$	38
Corporate securities	2				2		42				42
Certificates of deposit	22				22		18				18
Other	4				4		62		2		64
Total marketable securities	$	30	$	—	$	30	$	160	$	2	$	162

U.S. government securities include bonds issued by government-sponsored agencies and Treasury notes. Corporate securities include primarily debt 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 and after one year through five years total $22 and $4 at December 31, 2016. The divestiture of DCLLC caused a substantial reduction in marketable securities in the current year. See Note 3 for additional information.