Cash and Cash Equivalents (Tables)

12 Months Ended

Dec. 31, 2014

Cash and Cash Equivalents

Components of cash and cash equivalents

	At December 31,
	2014		2013
Cash	$	333	$	377
Foreign government treasury bills		40		33
Money market funds		4,475		4,000
Cash and cash equivalents	$	4,848	$	4,410