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Earnings Per Common Share (EPS) (Tables)

3 Months Ended

Mar. 31, 2012

Earnings Per Share Reconciliation [Abstract]

The computations of basic and diluted EPS for the three months ended March 31 were as follows:

(Millions, except per share amounts)			2012			2011
Numerator:
	Basic and diluted:
		Net income	$	1,256	$	1,177
		Earnings allocated to participating share awards^(a)		(14)		(14)
		Net income attributable to common shareholders	$	1,242	$	1,163
Denominator:^(a)
	Basic: Weighted-average common stock			1,160		1,192
	Add: Weighted-average stock options^(b)			6		6
	Diluted			1,166		1,198

Basic EPS			$	1.07	$	0.98
Diluted EPS			$	1.07	$	0.97

(a) 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.

(b) For the three months ended March 31, 2012 and 2011, the dilutive effect of unexercised stock options excludes 8 million and 23 million options, respectively, from the computation of EPS because inclusion of the options would have been anti-dilutive.