Earnings Per Common Share (EPS) (Tables)

3 Months Ended

Mar. 31, 2018

Earnings Per Share Reconciliation [Abstract]

Computation of basic and diluted EPS

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

(Millions, except per share amounts)			2018			2017
Numerator:
	Basic and diluted:
		Net income	$	1,634	$	1,251
		Preferred dividends		(21)		(21)
		Net income available to common shareholders	$	1,613	$	1,230
		Earnings allocated to participating share awards(a)		(13)		(10)
		Net income attributable to common shareholders	$	1,600	$	1,220
Denominator:(a)
	Basic: Weighted-average common stock			859		899
	Add: Weighted-average stock options (b)			2		4
	Diluted			861		903
Basic EPS			$	1.86	$	1.36
Diluted EPS			$	1.86	$	1.35

• Our 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.
• The dilutive effect of unexercised stock options excludes from the computation of EPS 0.6 million and 1.2 million of options for the three months endedMarch 31, 2018 and 2017, respectively, because inclusion of the options would have been anti-dilutive.