Stock Repurchase Program (Tables)

12 Months Ended

Dec. 31, 2015

Stock Repurchase Programs [Abstract]

Summary of stock repurchase activity under stock repurchase program

The stock repurchase activity under our stock repurchase programs during 2015 is summarized as follows:

	Shares Repurchased	Average Price per Share (1)	Value of Shares Repurchased	Remaining Amount Authorized
	(In millions, except per share amounts)
Balance as of January 1, 2015				$	985
Authorization of additional plan in January 2015				2,000
Repurchase of shares of common stock prior to the Distribution	18	56.95	1,000	(1,000		)
Authorization of additional plan in June 2015				1,000
Repurchase of shares of common stock subsequent to the Distribution	41	27.48	1,149	(1,149		)
Balance as of December 31, 2015				$	1,836

(1) Stock repurchase activity excludes broker commissions.