Earnings per common share (Tables)

6 Months Ended

Jun. 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 June 30						Six Months Ended June 30
	2023			2022			2023			2022
	(In thousands, except per share)
Income available to common shareholders:
Net income	$	867,034		$	217,522		$	1,568,658		$	579,696
Less: Preferred stock dividends		(24,940	)		(24,941	)		(49,881	)		(46,706	)
Net income available to common equity		842,094			192,581			1,518,777			532,990
Less: Income attributable to unvested stock-based    compensation awards		(1,574	)		(345	)		(2,731	)		(1,076	)
Net income available to common shareholders	$	840,520		$	192,236		$	1,516,046		$	531,914
Weighted-average shares outstanding:
Common shares outstanding (including common stock    issuable) and unvested stock-based compensation awards		166,152			177,682			167,076			153,612
Less: Unvested stock-based compensation awards		(310	)		(315	)		(294	)		(322	)
Weighted-average shares outstanding		165,842			177,367			166,782			153,290
Basic earnings per common share	$	5.07		$	1.08		$	9.09		$	3.47

Computations of Diluted Earnings Per Common Share

The computations of diluted earnings per common share follow:

	Three Months Ended June 30						Six Months Ended June 30
	2023			2022			2023			2022
	(In thousands, except per share)
Net income available to common equity	$	842,094		$	192,581		$	1,518,777		$	532,990
Less: Income attributable to unvested stock-based    compensation awards		(1,570	)		(345	)		(2,725	)		(1,074	)
Net income available to common shareholders	$	840,524		$	192,236		$	1,516,052		$	531,916
Adjusted weighted-average shares outstanding:
Common shares outstanding (including common stock    issuable) and unvested stock-based compensation awards		166,152			177,682			167,076			153,612
Less: Unvested stock-based compensation awards		(310	)		(315	)		(294	)		(322	)
Plus: Incremental shares from assumed conversion    of stock-based compensation awards		478			910			577			691
Adjusted weighted-average shares outstanding		166,320			178,277			167,359			153,981
Diluted earnings per common share	$	5.05		$	1.08		$	9.06		$	3.45