CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Stockholders' Equity:
Common stock, par value per share (in dollars per share)	$ 0.01	$ 0.01
Common Stock, shares authorized (in shares)	300,000,000	300,000,000
Common Stock, shares issued (in shares)	99,200,000	99,200,000
Treasury stock, shares (in shares)	38,600,000	39,500,000