Earnings per common share (Tables)

12 Months Ended

Dec. 31, 2024

Earnings Per Share [Abstract]

Computations of Basic Earnings Per Common Share

The computations of basic earnings per common share follow:

	Year Ended December 31,
(Dollars in millions, except per share, shares in thousands)	2024		2023		2022
Income available to common shareholders:
Net income	$	2,588	$	2,741	$	1,992
Less: Preferred stock dividends	(134)		(100)		(97)
Net income available to common equity	2,454		2,641		1,895
Less: Income attributable to unvested stock-based compensation awards	(5)		(5)		(4)
Net income available to common shareholders	$	2,449	$	2,636	$	1,891
Weighted-average shares outstanding:
Common shares outstanding (including common stock issuable) and unvested stock-based compensation awards	166,806		166,662		163,489
Less: Unvested stock-based compensation awards	(327)		(301)		(315)
Weighted-average shares outstanding	166,479		166,361		163,174
Basic earnings per common share	$	14.71	$	15.85	$	11.59

Computations of Diluted Earnings Per Common Share

The computations of diluted earnings per common share follow:

	Year Ended December 31,
(Dollars in millions, except per share, shares in thousands)	2024		2023		2022
Net income available to common equity	$	2,454	$	2,641	$	1,895
Less: Income attributable to unvested stock-based compensation awards	(5)		(5)		(4)
Net income available to common shareholders	$	2,449	$	2,636	$	1,891
Adjusted weighted-average shares outstanding:
Common shares outstanding (including common stock    issuable) and unvested stock-based compensation awards	166,806		166,662		163,489
Less: Unvested stock-based compensation awards	(327)		(301)		(315)
Plus: Incremental shares from assumed conversion of stock-based compensation awards	840		641		856
Adjusted weighted-average shares outstanding	167,319		167,002		164,030
Diluted earnings per common share	$	14.64	$	15.79	$	11.53