Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2023

Earnings Per Share [Abstract]

Computation of basic and diluted earnings/(loss) 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:	2023		2022 (1)		2021
Weighted-average number of shares on which earnings per share calculations are based
Basic	911,210,319		902,664,190		895,990,771
Add—incremental shares under stock-based compensation plans	8,700,951		7,593,455		6,883,290
Add—incremental shares associated with contingently issuable shares	2,162,558		2,011,417		1,766,940
Assuming dilution	922,073,828		912,269,062		904,641,001
Income from continuing operations	$	7,514	$	1,783	$	4,712
Income/(loss) from discontinued operations, net of tax	(12)		(143)		1,030
Net income on which basic earnings per share is calculated	$	7,502	$	1,639	$	5,743
Income from continuing operations	$	7,514	$	1,783	$	4,712
Net income applicable to contingently issuable shares	—		—		—
Income from continuing operations on which diluted earnings per share is calculated	$	7,514	$	1,783	$	4,712
Income/(loss) from discontinued operations, net of tax, on which diluted earnings per share is calculated	(12)		(143)		1,030
Net income on which diluted earnings per share is calculated	$	7,502	$	1,639	$	5,743
Earnings/(loss) per share of common stock
Assuming dilution
Continuing operations	$	8.15	$	1.95	$	5.21
Discontinued operations	(0.01)		(0.16)		1.14
Total	$	8.14	$	1.80	$	6.35
Basic
Continuing operations	$	8.25	$	1.97	$	5.26
Discontinued operations	(0.01)		(0.16)		1.15
Total	$	8.23	$	1.82	$	6.41

(1) Includes the impact of a one-time, non-cash pension settlement charge. Refer to note V, “Retirement-Related Benefits,” for additional information.