<ARTICLE>                     5
<LEGEND>
          The following Financial Data Schedules have been restated to reflect
          the adoption of SFAS 128.     
</LEGEND>
 
<MULTIPLIER>                                   1,000,000

       
                                                                                                  
<PERIOD-TYPE>                   6-MOS                       9-MOS                    12-MOS                   12-MOS
<FISCAL-YEAR-END>                              DEC-31-1996            DEC-31-1996              DEC-31-1996              DEC-31-1995
<PERIOD-START>                                 JAN-01-1996            JAN-01-1996              JAN-01-1996              JAN-01-1995
<PERIOD-END>                                   JUN-30-1996            SEP-30-1996              DEC-31-1996              DEC-31-1995

<CASH>                                         32                     88                       46                       35
<SECURITIES>                                   0                      0                        0                        0
<RECEIVABLES>                                  1105                   1021                     1114                     1029
<ALLOWANCES>                                   113                    117                      121                      100
<INVENTORY>                                    0                      0                        0                        0
<CURRENT-ASSETS>                               0                      0                        0                        0
<PP&E>                                         4200                   4559                     4619                     3902
<DEPRECIATION>                                 1582                   1748                     1773                     1533
<TOTAL-ASSETS>                                 4468                   4564                     4750                     4043
<CURRENT-LIABILITIES>                          0                      0                        0                        0
<BONDS>                                        2208                   2346                     2664                     2093
<PREFERRED-MANDATORY>                          3                      3                        3                        3
<PREFERRED>                                    0                      0                        0                        0
<COMMON>                                       14                     14                       14                       14
<OTHER-SE>                                     733                    755                      758                      701
<TOTAL-LIABILITY-AND-EQUITY>                   4468                   4564                     4750                     4043
<SALES>                                        0                      0                        0                        0
<TOTAL-REVENUES>                               641                    1009                     1414                     1246
<CGS>                                          0                      0                        0                        0
<TOTAL-COSTS>                                  316                    487                      695                      626
<OTHER-EXPENSES>                               93                     145                      202                      172
<LOSS-PROVISION>                               7                      10                       11                       18
<INTEREST-EXPENSE>                             93                     148                      203                      170
<INCOME-PRETAX>                                60                     104                      74                       117
<INCOME-TAX>                                   24                     41                       54                       48
<INCOME-CONTINUING>                            50                     84                       103                      101
<DISCONTINUED>                                 0                      0                        0                        0
<EXTRAORDINARY>                                0                      0                        0                        0
<CHANGES>                                      0                      0                        0                        0
<NET-INCOME>                                   50                     84                       103                      101
<EPS-PRIMARY>                                  2.17                   3.67                     4.43                     4.38
<EPS-DILUTED>                                  2.06                   3.43                     4.20                     4.14