<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
COMPANY'S BALANCE SHEET AT JUNE 30, 1994 AND INCOME STATEMENT FOR THE SIX MONTH
PERIOD ENDED JUNE 30, 1994 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO
SUCH FINANCIAL STATEMENTS AND THEIR RELATED FOOTNOTES.
</LEGEND>
<MULTIPLIER> 1,000,000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1994
<PERIOD-END>                               JUN-30-1994
<CASH>                                           1,203
<SECURITIES>                                       373
<RECEIVABLES>                                    4,290
<ALLOWANCES>                                        68
<INVENTORY>                                      1,922
<CURRENT-ASSETS>                                 8,997
<PP&E>                                          45,649
<DEPRECIATION>                                  23,818
<TOTAL-ASSETS>                                  35,376
<CURRENT-LIABILITIES>                           11,314
<BONDS>                                          3,877
<COMMON>                                         1,069
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<OTHER-SE>                                      13,119
<TOTAL-LIABILITY-AND-EQUITY>                    35,376
<SALES>                                         16,807
<TOTAL-REVENUES>                                17,088
<CGS>                                                0
<TOTAL-COSTS>                                   15,906
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 156
<INCOME-PRETAX>                                  1,182
<INCOME-TAX>                                       537
<INCOME-CONTINUING>                                645
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                       645
<EPS-PRIMARY>                                      .99
<EPS-DILUTED>                                      .99