<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM FORM 10-Q
AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               SEP-30-1997
<CASH>                                       1,506,751
<SECURITIES>                                         0
<RECEIVABLES>                                2,738,174
<ALLOWANCES>                                  (57,512)
<INVENTORY>                                  1,101,414
<CURRENT-ASSETS>                             5,665,252
<PP&E>                                       9,944,461
<DEPRECIATION>                             (6,395,959)
<TOTAL-ASSETS>                              11,503,447
<CURRENT-LIABILITIES>                        3,554,537
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                       892,162
<OTHER-SE>                                   5,474,689
<TOTAL-LIABILITY-AND-EQUITY>                11,503,447
<SALES>                                      1,921,435
<TOTAL-REVENUES>                             7,812,638
<CGS>                                        1,356,508
<TOTAL-COSTS>                                5,713,098
<OTHER-EXPENSES>                               852,240
<LOSS-PROVISION>                                12,597
<INTEREST-EXPENSE>                              60,074
<INCOME-PRETAX>                              1,187,226
<INCOME-TAX>                                   264,208
<INCOME-CONTINUING>                            923,018
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   923,018
<EPS-PRIMARY>                                     1.87
<EPS-DILUTED>                                     1.80