Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2011

Earnings Per Share [Abstract]

Summary of Earnings Per Share

	For the Three Months Ended June 30,
	2011						2010
					Per						Per
			Average		Share				Average		Share
	Income		Shares		Amount		Income		Shares		Amount
	(In thousands, except per share data)
Net income	$	96,008					$	142,591
Basic earnings per share:
Income available to common stockholders	$	96,008		494,138	$	0.19	$	142,591		492,888	$	0.29
Effect of dilutive common stock equivalents		—		614				—		1,519
Diluted earnings per share:
Income available to common stockholders	$	96,008		494,752	$	0.19	$	142,591		494,407	$	0.29

	For the Six Months Ended June 30,
	2011								2010
						Per							Per
				Average		Share					Average		Share
	Income			Shares		Amount			Income		Shares		Amount
	(In thousands, except per share data)
Net (loss) income	$	(459,656	)						$	291,476
Basic (loss) earnings per share:
(Loss) income available to common stockholders	$	(459,656	)		493,994	$	(0.93	)	$	291,476		492,728	$	0.59
Effect of dilutive common stock equivalents		—			—					—		2,079
Diluted (loss) earnings per share:
(Loss) income available to common stockholders	$	(459,656	)		493,994	$	(0.93	)	$	291,476		494,807	$	0.59