ex11.htm

	Three months						Six months
	ended June 30,						ended June 30,
	2007			2006			2007			2006
				(Dollars, except per share amounts,
				and shares in thousands)
Income (Numerator):
Net income	$	112,265			152,210			190,135			221,470
Dividends applicable to preferred stock		(93	)		(96	)		(186	)		(194	)

Net income applicable to common stock		112,172			152,114			189,949			221,276
Interest on convertible debentures, net of tax		1,207			1,207			2,414			2,414
Dividends applicable to preferred stock		93			96			186			194

Net income as adjusted for purposes of
computing diluted earnings per share	$	113,472			153,417			192,549			223,884

Shares (Denominator):
Weighted average number of shares:
Outstanding during period		109,263			116,165			110,506			119,572
Nonvested restricted stock		(858	)		(724	)		(788	)		(655	)

Number of shares for computing basic
earnings per share		108,405			115,441			109,718			118,917

Incremental common shares attributable
to dilutive securities:
Shares issuable under convertible securities		4,485			4,496			4,485			4,502
Shares issuable upon settlement of accelerated
share repurchase agreements		-			1,045			-			729
Shares issuable under incentive compensation
and employee benefit plans		831			654			812			650

Number of shares as adjusted for purposes
of computing diluted earnings per share		113,721			121,636			115,015			124,798


Basic earnings per share	$	1.03			1.32			1.73			1.86

Diluted earnings per share	$	1.00			1.26			1.67			1.79