Short-Term and Long-Term Investments Short-Term and Long-Term Investments

12 Months Ended

Dec. 31, 2013

Investments, Debt and Equity Securities [Abstract]

Available-for-sale Securities [Table Text Block]

As of December 31, 2013, available-for-sale securities consisted of the following (in millions):

	Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
Cetip equity securities	$	324	$	—	$	—	$	324
U.S. Treasury securities	37		—		—		37
Mutual funds	33		—		—		33
Foreign exchange derivative contracts	4		—		—		4
Total available-for-sale securities	$	398	$	—	$	—	$	398

As of December 31, 2012, available-for-sale securities consisted of the following (in millions):

	Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Cetip equity securities	$	514	$	—	$	(123	)	$	391