EXHIBIT 11 — Computation of Per Share Earnings

(In thousands, except per share data)

	2006		2005		2004
NUMERATOR:
Income before discontinued operations and cumulative effect of a change in accounting principle	$	688,762	$	633,648	$	794,454
Income from discontinued operations, net		2,755		302,014		51,345
Cumulative effect of a change in accounting principle		—		—		(4,883,968	)
Net income (loss)		691,517		935,662		(4,038,169	)
Effect of dilutive securities:
None		—		—		—
Numerator for net income before cumulative effect of a change in accounting principle per common share — diluted		691,517		935,662		845,799
Numerator for cumulative effect of a change in accounting principle per common share — diluted		—		—		(4,883,968	)
Numerator for net income (loss) per common share — diluted	$	691,517	$	935,662	$	(4,038,169	)
DENOMINATOR:
Weighted average common shares		500,786		545,848		596,126
Effect of dilutive securities:
Stock options and common stock warrants		853		1,303		2,149
Denominator for net income (loss) per common share — diluted		501,639		547,151		598,275
Net income (loss) per common share:
Income before discontinued operations and cumulative effect of a change in accounting principle — Basic	$	1.37	$	1.16	$	1.33
Discontinued operations — Basic		.01		.55		.09
Cumulative effect of a change in accounting principle — Basic		—		—		(8.19	)
Net income (loss) — Basic	$	1.38	$	1.71	$	(6.77	)
Income before cumulative effect of a change in accounting principle — Diluted	$	1.37	$	1.16	$	1.33
Discontinued operations — Diluted		.01		.55		.08
Cumulative effect of a change in accounting principle — Diluted		—		—		(8.16	)
Net income (loss) — Diluted	$	1.38	$	1.71	$	(6.75	)