Earnings Per Share of Common Stock (Tables)

12 Months Ended

Dec. 31, 2015

Earnings Per Share of Common Stock

Computation of Earnings per share

The following table presents the computation of basic and diluted earnings per share of common stock.
($ in millions except per share amounts)
For the year ended December 31:			2015		2014		2013
Weighted-average number of shares on which earnings
	per share calculations are based
Basic				978,744,523		1,004,272,584		1,094,486,604
	Add—incremental shares under stock-based
		compensation plans		3,037,001		4,332,155		6,751,240
	Add—incremental shares associated with contingently
		issuable shares		918,744		1,395,741		1,804,313
Assuming dilution				982,700,267		1,010,000,480		1,103,042,156
Income from continuing operations			$	13,364	$	15,751	$	16,881
Loss from discontinued operations, net of tax				(174)		(3,729)		(398)
Net income on which basic earnings per share is
	calculated		$	13,190	$	12,022	$	16,483
Income from continuing operations			$	13,364	$	15,751	$	16,881
Net income applicable to contingently issuable shares				(1)		(3)		(1)
Income from continuing operations on which diluted
	earnings per share is calculated		$	13,363	$	15,749	$	16,880
Loss from discontinued operations, net of tax, on which
	basic and diluted earnings per share is calculated			(174)		(3,729)		(398)
Net income on which diluted earnings per share is
	calculated		$	13,189	$	12,020	$	16,483
Earnings/(loss) per share of common stock
	Assuming dilution
		Continuing operations	$	13.60	$	15.59	$	15.30
		Discontinued operations		(0.18)		(3.69)		(0.36)
		Total	$	13.42	$	11.90	$	14.94
	Basic
		Continuing operations	$	13.66	$	15.68	$	15.42
		Discontinued operations		(0.18)		(3.71)		(0.36)
		Total	$	13.48	$	11.97	$	15.06