<TABLE> <S> <C>

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<S>                             <C>                     <C>                     <C>
<PERIOD-TYPE>                   3-MOS                   6-MOS                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1997             DEC-31-1997             DEC-31-1997
<PERIOD-START>                             JAN-01-1997             JAN-01-1997             JAN-01-1997
<PERIOD-END>                               MAR-31-1997             JUN-30-1997             SEP-30-1997
<CASH>                                             134                     188                     165
<SECURITIES>                                         0                       0                       0
<RECEIVABLES>                                      353                     341                     327
<ALLOWANCES>                                        21                      18                      19
<INVENTORY>                                        981                     921                     894
<CURRENT-ASSETS>                                    12                      10                      10
<PP&E>                                            6380                    6419                    6472
<DEPRECIATION>                                    3971                    4019                    4067
<TOTAL-ASSETS>                                    5063                    5006                    4934
<CURRENT-LIABILITIES>                              893                     899                     920
<BONDS>                                            473                     473                     452
<PREFERRED-MANDATORY>                                0                       0                       0
<PREFERRED>                                         14                      14                      14
<COMMON>                                           114                     115                     115
<OTHER-SE>                                         867                    1020                    1052
<TOTAL-LIABILITY-AND-EQUITY>                      5063                    5006                    4934
<SALES>                                           1193                    2399                    3513
<TOTAL-REVENUES>                                  1193                    2399                    3513
<CGS>                                             1053                    2106                    3078
<TOTAL-COSTS>                                     1136                    2141                    3196
<OTHER-EXPENSES>                                     0                       0                       0
<LOSS-PROVISION>                                     0                       0                       0
<INTEREST-EXPENSE>                                  12                      24                      36
<INCOME-PRETAX>                                     46                     238                     287
<INCOME-TAX>                                         7                      40                      48
<INCOME-CONTINUING>                                 38                     198                     239
<DISCONTINUED>                                       0                       0                       0
<EXTRAORDINARY>                                      0                       0                       0
<CHANGES>                                            0                       0                       0
<NET-INCOME>                                        28                     178                     208
<EPS-PRIMARY>                                     0.25                    1.58                    1.85
<EPS-DILUTED>                                     0.25                    1.47                    1.75
        

</TABLE>