<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>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<CASH>                                       1,442,165
<SECURITIES>                                         0
<RECEIVABLES>                                2,625,676
<ALLOWANCES>                                  (57,608)
<INVENTORY>                                  1,053,522
<CURRENT-ASSETS>                             5,492,470
<PP&E>                                       9,798,712
<DEPRECIATION>                             (6,357,615)
<TOTAL-ASSETS>                              10,800,745
<CURRENT-LIABILITIES>                        3,470,163
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                       829,743
<OTHER-SE>                                   5,187,473
<TOTAL-LIABILITY-AND-EQUITY>                10,800,745
<SALES>                                      1,284,372
<TOTAL-REVENUES>                             5,042,582
<CGS>                                          855,241
<TOTAL-COSTS>                                3,712,112
<OTHER-EXPENSES>                               569,577
<LOSS-PROVISION>                                 6,041
<INTEREST-EXPENSE>                              37,136
<INCOME-PRETAX>                                723,757
<INCOME-TAX>                                   157,308
<INCOME-CONTINUING>                            566,449
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   566,449
<EPS-PRIMARY>                                     1.15<F1>
<EPS-DILUTED>                                     1.15<F1>
<FN>
<F1>ADJUSTED FOR TWO-FOR-ONE STOCK SPLIT ON JUNE 2, 1997.
</FN>