Exhibit 11

Statements Re: Computation of Per Share Earnings

(Dollars in millions except share data)	Three months ended March 31,
	2011		2010
Numerator:
Net income —basic and diluted	$	62	$	68
Denominator:
Weighted-average common shares outstanding		162,940,199		162,875,008
Effect of stock based awards		729,799		435,443
Adjusted weighted-average shares		163,669,998		163,310,451
Earnings per share:
Basic	$	0.38	$	0.42
Diluted		0.38		0.42
Number of anti-dilutive stock based awards		6,918,831		9,788,923
Exercise price of anti-dilutive stock based awards	$	29.20-45.26	$	26.58-45.26

Certain stock-based compensation awards were not included in the computation of diluted earnings per share for the three-month period ended March 31, 2011 and 2010, since inclusion of these awards would have anti-dilutive effects.