<ARTICLE> 9
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
SEPTEMBER 1999 FORM 10-Q FOR COMERICA INCORPORATED AND SUBSIDIARIES AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               SEP-30-1999
<CASH>                                       1,485,739
<INT-BEARING-DEPOSITS>                          36,835
<FED-FUNDS-SOLD>                               119,157
<TRADING-ASSETS>                                 4,381
<INVESTMENTS-HELD-FOR-SALE>                  2,125,613
<INVESTMENTS-CARRYING>                               0
<INVESTMENTS-MARKET>                                 0
<LOANS>                                     32,077,940
<ALLOWANCE>                                    463,451
<TOTAL-ASSETS>                              37,284,990
<DEPOSITS>                                  22,900,300
<SHORT-TERM>                                 2,211,969
<LIABILITIES-OTHER>                            453,688
<LONG-TERM>                                  8,355,771
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                    250,000
<COMMON>                                       786,166
<OTHER-SE>                                   2,327,096
<TOTAL-LIABILITIES-AND-EQUITY>              37,284,990
<INTEREST-LOAN>                              1,818,483
<INTEREST-INVEST>                              118,216
<INTEREST-OTHER>                                 6,173
<INTEREST-TOTAL>                             1,942,872
<INTEREST-DEPOSIT>                             436,628
<INTEREST-EXPENSE>                             804,006
<INTEREST-INCOME-NET>                        1,138,866
<LOAN-LOSSES>                                   69,000
<SECURITIES-GAINS>                               1,941
<EXPENSE-OTHER>                                829,144
<INCOME-PRETAX>                                762,742
<INCOME-PRE-EXTRAORDINARY>                     496,908
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   496,908
<EPS-BASIC>                                       3.10
<EPS-DILUTED>                                     3.06
<YIELD-ACTUAL>                                    4.53
<LOANS-NON>                                    157,866
<LOANS-PAST>                                    60,959
<LOANS-TROUBLED>                                 7,379
<LOANS-PROBLEM>                                      0
<ALLOWANCE-OPEN>                               452,409
<CHARGE-OFFS>                                   76,350
<RECOVERIES>                                    18,368
<ALLOWANCE-CLOSE>                              463,451
<ALLOWANCE-DOMESTIC>                           251,893
<ALLOWANCE-FOREIGN>                             29,910
<ALLOWANCE-UNALLOCATED>                        181,648