Earnings Per Common Share (EPS) (Tables)

12 Months Ended

Dec. 31, 2012

The computations of basic and diluted EPS for the years ended December 31 were as follows:

(Millions, except per share amounts)				2012			2011		2010
Numerator:
	Basic and diluted:
		Income from continuing operations		$	4,482	$	4,899	$	4,057
		Earnings allocated to participating
			share awards^(a)		(49)		(58)		(51)
		Income from discontinued
			operations, net of tax		―		36		―
		Net income attributable to common
			shareholders	$	4,433	$	4,877	$	4,006
Denominator:^(a)
	Basic: Weighted-average common stock				1,135		1,178		1,188
	Add: Weighted-average stock options^(b)				6		6		7
	Diluted				1,141		1,184		1,195

Basic EPS:
	Income from continuing operations
		attributable to common shareholders		$	3.91	$	4.11	$	3.37
	Income from discontinued operations				―		0.03		―
	Net income attributable to common
		shareholders		$	3.91	$	4.14	$	3.37

Diluted EPS:
	Income from continuing operations
		attributable to common shareholders		$	3.89	$	4.09	$	3.35
	Income from discontinued operations				―		0.03		―
	Net income attributable to common
		shareholders		$	3.89	$	4.12	$	3.35

The Company's unvested restricted stock awards, which include the right to receive non-forfeitable dividends or dividend equivalents, are considered participating securities. Calculations of EPS under the two-class method exclude from the numerator any dividends paid or owed on participating securities and any undistributed earnings considered to be attributable to participating securities. The related participating securities are similarly excluded from the denominator.
For the years ended December 31, 2012, 2011 and 2010, the dilutive effect of unexercised stock options excludes 8 million, 19 million and 36 million options, respectively, from the computation of EPS because inclusion of the options would have been anti-dilutive.