Stockholders' Equity and Stock-Based Compensation (Details Textual) (USD $)	1 Months Ended		3 Months Ended		6 Months Ended
	Jul. 31, 2011	Apr. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Jun. 30, 2011
Stockholders Equity Stockholders Equity and Stock-Based Compensation (Textuals) [Abstract]
Closing price of the Company's common stock on the New York Stock Exchange			$ 16.81		$ 16.81
Retired common stock held in treasury, shares				70,000,000
Accelerated future stock based compensation expenses associated with retirement eligible unvested stock grants				$ 11,000,000
Value of outstanding common stock authorized to be repurchased in open market transactions					300,000,000
Common stock shares authorized to be repurchased in open market transactions, terminated plan					342,500,000
Purchase price of common stock repurchased on open market			156,105,000		156,105,000
Dividends per common share	$ 0.10	$ 0.10	$ 0.10		$ 0.10
Treasury Stock [Member]
Retired common stock held in treasury				1,900,000,000	1,903,906,000
Total shares repurchased on open market			(9,593,603)		(9,593,603)
Stockholders Equity Stockholders Equity and Stock-Based Compensation (Textuals) [Abstract]
Retired common stock held in treasury, shares					70,074,369
Purchase price of common stock repurchased on open market			156,105,000		156,105,000
Common Stock [Member]
Retired common stock held in treasury					(14,015,000)
Decrease in common stock due to retirement of treasury stock				14,000,000
Total shares repurchased on open market			9,600,000
Stockholders Equity Stockholders Equity and Stock-Based Compensation (Textuals) [Abstract]
Retired common stock held in treasury, shares					(70,074,369)
Additional Paid-In Capital [Member]
Retired common stock held in treasury					(1,889,891,000)
Decrease in additional paid in capital due to retirement of treasury stock				$ 1,900,000,000