<TABLE> <S> <C>

<PAGE>
<ARTICLE> 9
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED BALANCE SHEETS AND STATEMENTS OF INCOME AND THE ACCOMPANYING TABLES
OF FORM 10-Q. INFORMATION HEREIN IS QUALIFIED BY REFERENCE TO SUCH STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               MAR-31-1999
<CASH>                                       2,313,357
<INT-BEARING-DEPOSITS>                         256,656
<FED-FUNDS-SOLD>                               355,050
<TRADING-ASSETS>                               336,089
<INVESTMENTS-HELD-FOR-SALE>                  3,375,258
<INVESTMENTS-CARRYING>                         139,321
<INVESTMENTS-MARKET>                           141,081
<LOANS>                                     24,352,354
<ALLOWANCE>                                    447,936
<TOTAL-ASSETS>                              32,347,577
<DEPOSITS>                                  23,996,023
<SHORT-TERM>                                 3,773,057
<LIABILITIES-OTHER>                            685,381
<LONG-TERM>                                    648,000
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                     1,415,227
<OTHER-SE>                                   1,410,503
<TOTAL-LIABILITIES-AND-EQUITY>              32,347,577
<INTEREST-LOAN>                                451,492
<INTEREST-INVEST>                               56,818
<INTEREST-OTHER>                                 8,783
<INTEREST-TOTAL>                               517,093
<INTEREST-DEPOSIT>                             122,779
<INTEREST-EXPENSE>                             177,272
<INTEREST-INCOME-NET>                          339,821
<LOAN-LOSSES>                                    5,000
<SECURITIES-GAINS>                               1,261
<EXPENSE-OTHER>                                302,993
<INCOME-PRETAX>                                171,136
<INCOME-PRE-EXTRAORDINARY>                     171,136
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   118,498
<EPS-PRIMARY>                                      .69
<EPS-DILUTED>                                      .69
<YIELD-ACTUAL>                                    4.83
<LOANS-NON>                                    100,411
<LOANS-PAST>                                    14,259
<LOANS-TROUBLED>                                     0
<LOANS-PROBLEM>                                      0
<ALLOWANCE-OPEN>                               459,328
<CHARGE-OFFS>                                   23,557
<RECOVERIES>                                     7,221
<ALLOWANCE-CLOSE>                              447,936
<ALLOWANCE-DOMESTIC>                           204,300
<ALLOWANCE-FOREIGN>                             41,800
<ALLOWANCE-UNALLOCATED>                        201,836
        

</TABLE>