<ARTICLE>       5
<LEGEND>        THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED
                FROM FINANCIAL STATEMENTS AS OF JUNE 30, 1998 AND IS QUALIFIED
                IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS
<MULTIPLIER>    1,000,000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-END>                               JUN-30-1998
<CASH>                                              67
<SECURITIES>                                         0
<RECEIVABLES>                                      794
<ALLOWANCES>                                        13
<INVENTORY>                                        437
<CURRENT-ASSETS>                                 1,508
<PP&E>                                           4,373
<DEPRECIATION>                                   2,484
<TOTAL-ASSETS>                                   3,831
<CURRENT-LIABILITIES>                              857
<BONDS>                                            402
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                        110
<COMMON>                                           197
<OTHER-SE>                                       1,567
<TOTAL-LIABILITY-AND-EQUITY>                     3,831
<SALES>                                          1,927
<TOTAL-REVENUES>                                 1,927
<CGS>                                            1,148
<TOTAL-COSTS>                                    1,148
<OTHER-EXPENSES>                                   299
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                  21
<INCOME-PRETAX>                                    461
<INCOME-TAX>                                       172
<INCOME-CONTINUING>                                289
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                     10
<CHANGES>                                            0
<NET-INCOME>                                       279
<EPS-PRIMARY>                                     4.54
<EPS-DILUTED>                                     4.46