<ARTICLE>       5
<LEGEND>        THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED
                FROM FINANCIAL STATEMENTS AS OF MARCH 31, 1997 AND IS QUALIFIED
                IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS
<RESTATED>
<MULTIPLIER>    1,000,000
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               MAR-31-1997
<CASH>                                              49
<SECURITIES>                                         0
<RECEIVABLES>                                      773
<ALLOWANCES>                                        14
<INVENTORY>                                        472
<CURRENT-ASSETS>                                 1,566
<PP&E>                                           4,364
<DEPRECIATION>                                   2,317
<TOTAL-ASSETS>                                   4,019
<CURRENT-LIABILITIES>                              909
<BONDS>                                            559
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                        129
<COMMON>                                           197
<OTHER-SE>                                       1,445
<TOTAL-LIABILITY-AND-EQUITY>                     4,019
<SALES>                                            986
<TOTAL-REVENUES>                                   986
<CGS>                                              625
<TOTAL-COSTS>                                      625
<OTHER-EXPENSES>                                   199
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                  10
<INCOME-PRETAX>                                    155
<INCOME-TAX>                                        51
<INCOME-CONTINUING>                                104
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                       104
<EPS-PRIMARY>                                     1.62
<EPS-DILUTED>                                     1.59