<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-START> JAN-01-1997 <PERIOD-END> MAR-31-1997 <CASH> 76,900 <SECURITIES> 0 <RECEIVABLES> 613,200<F1> <ALLOWANCES> 0 <INVENTORY> 379,400 <CURRENT-ASSETS> 1,350,600<F2> <PP&E> 3,282,300 <DEPRECIATION> 1,456,600 <TOTAL-ASSETS> 4,430,700 <CURRENT-LIABILITIES> 1,362,600 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 800 <OTHER-SE> 310,000 <TOTAL-LIABILITY-AND-EQUITY> 4,430,700 <SALES> 785,100 <TOTAL-REVENUES> 789,800 <CGS> 480,000 <TOTAL-COSTS> 480,000 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 19,100 <INCOME-PRETAX> 73,700 <INCOME-TAX> 27,300 <INCOME-CONTINUING> 46,400 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 46,400 <EPS-PRIMARY> .60 <EPS-DILUTED> .60 <FN> <F1> Amount shown is net of allowances. <F2> Included within current assets are net assets of discontinued operations of $57,500. </FN>