Earnings Per Share and Equity (Tables)

6 Months Ended

Jun. 30, 2015

Reconciliation of basic and diluted earnings per share

The following table sets forth the components of basic and diluted earnings per share and shows the effect of these stock options, performance share awards and restricted stock on the weighted average number of shares outstanding (in millions) used in calculating diluted earnings per share:



	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
Net income attributable to common shareholders	$	638	$	522	$	1,331	$	612
Average common shares outstanding — basic	863		860		862		860
Potentially dilutive effect of stock options, performance share awards and restricted stock	3		4		4		3
Average common shares outstanding — diluted	866		864		866		863