Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2014

	For the three months ended					For the nine months ended
	September 30,					September 30,
	2014		2013			2014			2013

Net income (in millions)	$	211		$	186		$	612		$	559

Number of common shares:
Weighted average outstanding		351,457,043			350,517,337			351,357,913			350,334,634
Issued upon assumed exercise of outstanding stock options		235,944			373,152			354,940			442,678
Effect of issuance of nonvested restricted common stock		514,668			332,341			484,786			237,662
Effect of issuance of nonvested performance units		119,595			–			136,907			–
Weighted average and potential dilutive outstanding (1)(2)		352,327,250			351,222,830			352,334,546			351,014,974

Earnings per share:
Basic	$	0.60		$	0.53		$	1.74		$	1.60

Diluted	$	0.60		$	0.53		$	1.74		$	1.59

⁽¹⁾

Options for 1,254,842 shares and 27,916 shares of restricted stock were excluded from the calculation for the three months ended September 30, 2014 because they would have had an antidilutive effect. Options for 1,550,838 shares and 15,703 shares of restricted stock were excluded from the calculation for the three months ended September 30, 2013 because they would have had an antidilutive effect.

⁽²⁾

Options for 1,111,128 shares and 24,215 shares of restricted stock were excluded from the calculation for the nine months ended September 30, 2014 because they would have had an antidilutive effect. Options for 1,848,566 shares and 169,261 shares of restricted stock were excluded from the calculation for the nine months ended September 30, 2013 because they would have had an antidilutive effect.