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Common Stock
9 Months Ended
Sep. 30, 2014
Equity [Abstract]  
Common Stock
Common Stock
During the first nine months of 2014, the Company repurchased approximately 11.8 million shares of its common stock for consideration of $600 million. In May 2014, the Board of Directors of the Company authorized share repurchases of up to $2 billion of the Company's common stock. The Company remains authorized to purchase additional shares of its common stock up to a value of $1.5 billion. There is no time limit on the authorization. During the first nine months of 2013, the Company repurchased 10 million shares of its common stock for consideration of $400 million.