Stock Repurchase Programs (Tables)

6 Months Ended

Jun. 30, 2014

Stock Repurchase Programs [Abstract]

Summary of stock repurchase activity under stock repurchase program

Our stock repurchase programs may be limited or terminated at any time without prior notice. The timing and actual number of shares repurchased will depend on a variety of factors, including corporate and regulatory requirements, price and other market conditions and management's determination as to the appropriate use of our cash.  

The stock repurchase activity under our stock repurchase programs during the six months ended June 30, 2014 is summarized as follows:

	Shares Repurchased	Average Price per Share		Value of Shares Repurchased		Remaining Amount Authorized
	(In millions, except per share amounts)
Balance as of January 1, 2014	25	$	54.30	$	1,360	$	640
Authorization of additional plan in January 2014						5,000
Repurchase of shares of common stock	66	52.90		3,467		(3,467		)
Balance as of June 30, 2014	91	$	53.29	$	4,827	$	2,173