Exhibit (11) - Statement re: Computation of Net Income Per Common Share

COMPUTATION OF NET INCOME PER COMMON SHARE
Comerica Incorporated and Subsidiaries

		Three Months Ended
		March 31,
	(in millions, except per share data)	2003		2002
Basic:
	Net income applicable to common stock	$	176	$	214
	Average common shares outstanding		175		176
	Basic net income per common share	$	1.01	$	1.22
Diluted:
	Net income applicable to common stock	$	176	$	214
	Average common shares outstanding		175		176
	Common stock equivalent:
	Net effect of the assumed exercise of stock options		1		2
	Diluted average common shares		176		178
	Diluted net income per common share	$	1.00	$	1.20