Earnings per Common Share (Tables)

3 Months Ended

Mar. 31, 2016

Earnings Per Share [Abstract]

Computation of basic and diluted earnings per common share

The computation of basic and diluted earnings per common share is presented in the following table.

($ in millions, except per share data)	Three months ended March 31,
	2016		2015
Numerator:
Net income	$	246	$	677
Less: Preferred stock dividends	29		29
Net income applicable to common shareholders (1)	$	217	$	648
Denominator:
Weighted average common shares outstanding	378.1		415.8
Effect of dilutive potential common shares:
Stock options	3.4		4.9
Restricted stock units (non-participating) and performance stock awards	1.4		1.9
Weighted average common and dilutive potential common shares outstanding	382.9		422.6
Earnings per common share - Basic	$	0.57	$	1.56
Earnings per common share - Diluted	$	0.57	$	1.53

_____________________________

⁽¹⁾  Net income applicable to common shareholders is net income less preferred stock dividends.