<TABLE> <S> <C>
<PAGE>
<ARTICLE> 9
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-END> JUN-30-2000
<CASH> 2,847,699
<INT-BEARING-DEPOSITS> 8,109
<FED-FUNDS-SOLD> 1,613,080
<TRADING-ASSETS> 668,709
<INVESTMENTS-HELD-FOR-SALE> 17,382,207
<INVESTMENTS-CARRYING> 0
<INVESTMENTS-MARKET> 0
<LOANS> 72,796,102<F1>
<ALLOWANCE> 874,484
<TOTAL-ASSETS> 99,750,810
<DEPOSITS> 68,676,435
<SHORT-TERM> 11,579,487
<LIABILITIES-OTHER> 3,665,475
<LONG-TERM> 8,250,459
0
0
<COMMON> 323,163
<OTHER-SE> 7,255,791
<TOTAL-LIABILITIES-AND-EQUITY> 99,750,810
<INTEREST-LOAN> 2,722,732<F2>
<INTEREST-INVEST> 503,631
<INTEREST-OTHER> 56,515
<INTEREST-TOTAL> 3,282,878
<INTEREST-DEPOSIT> 1,145,217
<INTEREST-EXPENSE> 1,731,255
<INTEREST-INCOME-NET> 1,551,623
<LOAN-LOSSES> 49,985
<SECURITIES-GAINS> 8,393
<EXPENSE-OTHER> 1,424,099
<INCOME-PRETAX> 958,361
<INCOME-PRE-EXTRAORDINARY> 636,908
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 636,908
<EPS-BASIC> 2.11
<EPS-DILUTED> 2.09
<YIELD-ACTUAL> 3.55
<LOANS-NON> 282,486
<LOANS-PAST> 189,435
<LOANS-TROUBLED> 5
<LOANS-PROBLEM> 0
<ALLOWANCE-OPEN> 871,323
<CHARGE-OFFS> 75,619
<RECOVERIES> 28,795
<ALLOWANCE-CLOSE> 874,484
<ALLOWANCE-DOMESTIC> 0
<ALLOWANCE-FOREIGN> 0
<ALLOWANCE-UNALLOCATED> 59,508
<FN>
<F1>Includes loans held for sale of 1,345,694
<F2>Includes interest on loans held for sale of 48,829
</FN>
</TABLE>