Earnings Per Share of Common Stock (Tables)

12 Months Ended

Dec. 31, 2018

Earnings Per Share of Common Stock

Computation of basic and diluted earnings per share

($ in millions except per share amounts)

For the year ended December 31:	2018			2017			2016
Weighted-average number of shares on which earnings per share calculations are based
Basic	912,048,072			932,828,295			955,422,530
Add — incremental shares under stock-based compensation plans	2,786,316			3,094,373			2,416,940
Add — incremental shares associated with contingently issuable shares	1,481,326			1,462,957			874,626
Assuming dilution	916,315,714			937,385,625			958,714,097
Income from continuing operations	$	8,723		$	5,758		$	11,881
Income/(loss) from discontinued operations, net of tax	5			(5		)	(9		)
Net income on which basic earnings per share is calculated	$	8,728		$	5,753		$	11,872
Income from continuing operations	$	8,723		$	5,758		$	11,881
Net income applicable to contingently issuable shares	(6		)	(2		)	0
Income from continuing operations on which diluted earnings per share is calculated	$	8,718		$	5,756		$	11,881
Income/(loss) from discontinued operations, net of tax, on which basic and diluted earnings per share is calculated	5			(5		)	(9		)
Net income on which diluted earnings per share is calculated	$	8,722		$	5,752		$	11,872
Earnings/(loss) per share of common stock
Assuming dilution
Continuing operations	$	9.51		$	6.14		$	12.39
Discontinued operations	0.01			0.00			(0.01		)
Total	$	9.52		$	6.14		$	12.38
Basic
Continuing operations	$	9.56		$	6.17		$	12.44
Discontinued operations	0.01			0.00			(0.01		)
Total	$	9.57		$	6.17		$	12.43