Share Repurchases (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Disclosure of Repurchase Agreements [Abstract]
Stock repurchases (in shares)	101,000,000	99,000,000
Authorized shares repurchase (in shares)	110,000,000
Shares outstanding (in shares)	119,000,000	120,000,000