<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-31-1997
<PERIOD-END>                               SEP-30-1998
<CASH>                                             540
<SECURITIES>                                         0
<RECEIVABLES>                                      542
<ALLOWANCES>                                         0
<INVENTORY>                                        495
<CURRENT-ASSETS>                                 2,007
<PP&E>                                           3,417
<DEPRECIATION>                                   1,808
<TOTAL-ASSETS>                                   5,265
<CURRENT-LIABILITIES>                            1,272
<BONDS>                                          2,193
<COMMON>                                           678
<PREFERRED-MANDATORY>                              194
<PREFERRED>                                          0
<OTHER-SE>                                        (938)
<TOTAL-LIABILITY-AND-EQUITY>                     5,265
<SALES>                                          3,747
<TOTAL-REVENUES>                                 3,747
<CGS>                                            2,983
<TOTAL-COSTS>                                    2,983
<OTHER-EXPENSES>                                    81
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 110 
<INCOME-PRETAX>                                    370
<INCOME-TAX>                                       159
<INCOME-CONTINUING>                                202
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                    (39)
<CHANGES>                                            0
<NET-INCOME>                                       163
<EPS-PRIMARY>                                     3.04<F1>
<EPS-DILUTED>                                     2.87<F2>
<FN>
<F1> Represents basic earnings per share as defined in FASB Statement No. 128
<F2> Represents diluted earnings per share as defined in FASB Statement No. 128.
</FN>