<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM 10Q AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000,000
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               MAR-31-1997
<CASH>                                              17
<SECURITIES>                                         0
<RECEIVABLES>                                    4,606
<ALLOWANCES>                                     1,414
<INVENTORY>                                        443
<CURRENT-ASSETS>                                  4567
<PP&E>                                          15,723
<DEPRECIATION>                                   5,404
<TOTAL-ASSETS>                                  21,445
<CURRENT-LIABILITIES>                            2,914
<BONDS>                                          6,441
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                             7
<OTHER-SE>                                       9,043
<TOTAL-LIABILITY-AND-EQUITY>                    21,445
<SALES>                                              0
<TOTAL-REVENUES>                                 5,328
<CGS>                                                0
<TOTAL-COSTS>                                    2,774
<OTHER-EXPENSES>                                 1,051
<LOSS-PROVISION>                                   302
<INTEREST-EXPENSE>                                 116
<INCOME-PRETAX>                                    800
<INCOME-TAX>                                       321
<INCOME-CONTINUING>                                479
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                       479
<EPS-PRIMARY>                                     0.70
<EPS-DILUTED>                                     0.70