Earnings per common share (Tables)

9 Months Ended

Sep. 30, 2023

Earnings Per Share [Abstract]

Computations of Basic Earnings Per Common Share

The computations of basic earnings per common share follow:

	Three Months Ended September 30						Nine Months Ended September 30
	2023			2022			2023			2022
	(In thousands, except per share)
Income available to common shareholders:
Net income	$	689,941		$	646,596		$	2,258,599		$	1,226,292
Less: Preferred stock dividends		(24,941	)		(24,941	)		(74,822	)		(71,647	)
Net income available to common equity		665,000			621,655			2,183,777			1,154,645
Less: Income attributable to unvested stock-based    compensation awards		(1,237	)		(1,106	)		(3,975	)		(2,245	)
Net income available to common shareholders	$	663,763		$	620,549		$	2,179,802		$	1,152,400
Weighted-average shares outstanding:
Common shares outstanding (including common stock    issuable) and unvested stock-based compensation awards		166,217			174,921			166,787			160,793
Less: Unvested stock-based compensation awards		(308	)		(312	)		(299	)		(319	)
Weighted-average shares outstanding		165,909			174,609			166,488			160,474
Basic earnings per common share	$	4.00		$	3.55		$	13.09		$	7.18

Computations of Diluted Earnings Per Common Share

The computations of diluted earnings per common share follow:

	Three Months Ended September 30						Nine Months Ended September 30
	2023			2022			2023			2022
	(In thousands, except per share)
Net income available to common equity	$	665,000		$	621,655		$	2,183,777		$	1,154,645
Less: Income attributable to unvested stock-based    compensation awards		(1,234	)		(1,101	)		(3,965	)		(2,239	)
Net income available to common shareholders	$	663,766		$	620,554		$	2,179,812		$	1,152,406
Adjusted weighted-average shares outstanding:
Common shares outstanding (including common stock    issuable) and unvested stock-based compensation awards		166,217			174,921			166,787			160,793
Less: Unvested stock-based compensation awards		(308	)		(312	)		(299	)		(319	)
Plus: Incremental shares from assumed conversion    of stock-based compensation awards		661			1,073			605			821
Adjusted weighted-average shares outstanding		166,570			175,682			167,093			161,295
Diluted earnings per common share	$	3.98		$	3.53		$	13.05		$	7.14