<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>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-END>                               JUN-30-1997
<CASH>                                              19
<SECURITIES>                                         0
<RECEIVABLES>                                      567
<ALLOWANCES>                                         0
<INVENTORY>                                        541
<CURRENT-ASSETS>                                 1,433
<PP&E>                                           3,470
<DEPRECIATION>                                   1,789
<TOTAL-ASSETS>                                   5,076
<CURRENT-LIABILITIES>                            1,173
<BONDS>                                          1,854
<COMMON>                                           653
<PREFERRED-MANDATORY>                              194
<PREFERRED>                                          0
<OTHER-SE>                                      (1,006)
<TOTAL-LIABILITY-AND-EQUITY>                     5,076
<SALES>                                          1,892
<TOTAL-REVENUES>                                 1,892
<CGS>                                            1,430
<TOTAL-COSTS>                                    1,430
<OTHER-EXPENSES>                                     2
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                  42
<INCOME-PRETAX>                                    140
<INCOME-TAX>                                        43
<INCOME-CONTINUING>                                105
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                       105
<EPS-PRIMARY>                                     1.99<F1>
<EPS-DILUTED>                                     1.88<F2>
<FN>
<F1> Represents basic earnings per share as defined in FASB Statement 128.
<F2> Represents diluted earnings per share as defined in FASB Statement 128.
</FN>