<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from Consolidated
Summary Financial Statements and Notes included in this Form 10-Q and is
qualified in its entirety by reference to such financial statements.
</LEGEND>
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               JUN-30-1999
<CASH>                                          76,900
<SECURITIES>                                    76,000
<RECEIVABLES>                                  210,500
<ALLOWANCES>                                   (6,300)
<INVENTORY>                                    239,700
<CURRENT-ASSETS>                               738,200
<PP&E>                                       2,213,800
<DEPRECIATION>                             (1,202,900)
<TOTAL-ASSETS>                               2,814,200
<CURRENT-LIABILITIES>                          511,800
<BONDS>                                        578,100
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                       117,000
<OTHER-SE>                                   1,202,600
<TOTAL-LIABILITY-AND-EQUITY>                 2,814,200
<SALES>                                      1,368,600
<TOTAL-REVENUES>                             1,368,600
<CGS>                                          999,000
<TOTAL-COSTS>                                1,182,900
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 900
<INCOME-PRETAX>                                184,800
<INCOME-TAX>                                    73,200
<INCOME-CONTINUING>                            112,100
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   112,100
<EPS-BASIC>                                       1.05
<EPS-DILUTED>                                     1.05