<ARTICLE> 5 <MULTIPLIER> 1,000,000 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-END> MAR-31-1999 <CASH> 54 <SECURITIES> 782 <RECEIVABLES> 2,027 <ALLOWANCES> 16 <INVENTORY> 558 <CURRENT-ASSETS> 4,031 <PP&E> 20,543 <DEPRECIATION> 7,552 <TOTAL-ASSETS> 19,293 <CURRENT-LIABILITIES> 5,377 <BONDS> 2,407 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 1,743 <OTHER-SE> 4,720 <TOTAL-LIABILITY-AND-EQUITY> 19,293 <SALES> 0 <TOTAL-REVENUES> 3,708 <CGS> 0 <TOTAL-COSTS> 3,681 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 51 <INCOME-PRETAX> 67 <INCOME-TAX> 32 <INCOME-CONTINUING> 35 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 35 <EPS-PRIMARY> 0 <EPS-DILUTED> 0