Earnings per share

6 Months Ended

Jun. 30, 2011

Disclosure Earnings Per Share

Earnings per share

11.Earnings per share

The following table presents the computation of basic and diluted earnings per share:

		Three Months Ended				Six Months Ended
		June 30				June 30
		2011		2010		2011		2010
		(in millions of U.S. dollars, except share and per share data)
Numerator:
Net Income		$	607	$	677	$	866	$	1,432
Denominator:
Denominator for basic earnings per share:
	Weighted-average shares outstanding		338,920,580		339,975,261		338,021,487		339,202,374
Denominator for diluted earnings per share:
	Share-based compensation plans		2,768,388		1,268,395		2,596,909		1,185,944
	Adjusted weighted-average shares outstanding and assumed conversions		341,688,968		341,243,656		340,618,396		340,388,318
Basic earnings per share		$	1.79	$	1.99	$	2.56	$	4.22
Diluted earnings per share		$	1.77	$	1.98	$	2.54	$	4.21

Excluded from adjusted weighted-average shares outstanding and assumed conversions is the impact of securities that would have been anti-dilutive during the respective periods. For the three months ended June 30, 2011and 2010,the potential anti-dilutive share conversions were 1,212sharesand 426,167 shares, respectively. The potential anti-dilutive share conversions for the six months ended June 30, 2011 and 2010, were 81,718shares and 429,990 shares, respectively.