<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM CONSOLIDATED
SUMMARY FINANCIAL STATEMENTS AND NOTES INCLUDES IN THIS FORM 10-Q AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               SEP-30-1999
<CASH>                                          88,100
<SECURITIES>                                    80,000
<RECEIVABLES>                                  248,700
<ALLOWANCES>                                   (6,800)
<INVENTORY>                                    266,100
<CURRENT-ASSETS>                               818,600
<PP&E>                                       2,499,100
<DEPRECIATION>                             (1,226,200)
<TOTAL-ASSETS>                               3,519,500
<CURRENT-LIABILITIES>                          589,600
<BONDS>                                      1,049,200
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                       117,000
<OTHER-SE>                                   1,256,300
<TOTAL-LIABILITY-AND-EQUITY>                 3,519,500
<SALES>                                      2,166,000
<TOTAL-REVENUES>                             2,166,000
<CGS>                                        1,550,500
<TOTAL-COSTS>                                1,862,100
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               3,600
<INCOME-PRETAX>                                300,300
<INCOME-TAX>                                   119,000
<INCOME-CONTINUING>                            181,400
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   181,400
<EPS-BASIC>                                       1.70
<EPS-DILUTED>                                     1.70