<ARTICLE> 5
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               JUN-30-1999
<CASH>                                          56,700
<SECURITIES>                                         0
<RECEIVABLES>                                  208,200
<ALLOWANCES>                                     4,600
<INVENTORY>                                    130,700
<CURRENT-ASSETS>                               546,000
<PP&E>                                       1,503,500
<DEPRECIATION>                               (879,300)
<TOTAL-ASSETS>                               2,444,600
<CURRENT-LIABILITIES>                          695,000
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           700
<OTHER-SE>                                      88,300
<TOTAL-LIABILITY-AND-EQUITY>                 2,444,600
<SALES>                                        718,500
<TOTAL-REVENUES>                               741,800
<CGS>                                          423,500
<TOTAL-COSTS>                                  423,500
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               8,900
<INCOME-PRETAX>                                 81,600
<INCOME-TAX>                                    30,200
<INCOME-CONTINUING>                             51,400
<DISCONTINUED>                                 (5,700)
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    45,700
<EPS-BASIC>                                      .73
<EPS-DILUTED>                                      .70