<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM
THE COMPANY'S CONSOLIDATED STATEMENTS OF INCOME AND CONSOLIDATED
BALANCE SHEETS AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000,000
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               SEP-30-1997
<CASH>                                             347
<SECURITIES>                                        24
<RECEIVABLES>                                      416
<ALLOWANCES>                                        35
<INVENTORY>                                         76
<CURRENT-ASSETS>                                 1,018
<PP&E>                                           6,167
<DEPRECIATION>                                   1,164
<TOTAL-ASSETS>                                   7,895
<CURRENT-LIABILITIES>                              902
<BONDS>                                          2,770
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                         15
<COMMON>                                           628
<OTHER-SE>                                       2,801
<TOTAL-LIABILITY-AND-EQUITY>                     7,895
<SALES>                                          3,977
<TOTAL-REVENUES>                                 3,977
<CGS>                                                0
<TOTAL-COSTS>                                    3,349
<OTHER-EXPENSES>                                    49
<LOSS-PROVISION>                                    21
<INTEREST-EXPENSE>                                 110
<INCOME-PRETAX>                                    448
<INCOME-TAX>                                       184
<INCOME-CONTINUING>                                255
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                       255
<EPS-PRIMARY>                                      .98
<EPS-DILUTED>                                      .98