<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from
SEC form 10-Q and is qualified in its entirety by reference to such
financial statements.
</LEGEND>
<MULTIPLIER> 1,000,000
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-END>                               SEP-30-1997
<CASH>                                              12
<SECURITIES>                                         0
<RECEIVABLES>                                      607
<ALLOWANCES>                                         0
<INVENTORY>                                        489
<CURRENT-ASSETS>                                 1,401
<PP&E>                                           3,456
<DEPRECIATION>                                   1,774
<TOTAL-ASSETS>                                   4,959
<CURRENT-LIABILITIES>                            1,075
<BONDS>                                          1,887
<COMMON>                                           652
<PREFERRED-MANDATORY>                              194
<PREFERRED>                                          0
<OTHER-SE>                                        (961)
<TOTAL-LIABILITY-AND-EQUITY>                     4,959
<SALES>                                          3,130
<TOTAL-REVENUES>                                 3,130
<CGS>                                            2,383
<TOTAL-COSTS>                                    2,383
<OTHER-EXPENSES>                                    14
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                  78
<INCOME-PRETAX>                                    199
<INCOME-TAX>                                        48
<INCOME-CONTINUING>                                164
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                       164
<EPS-PRIMARY>                                     3.05
<EPS-DILUTED>                                     2.91