<ARTICLE> 5 <MULTIPLIER> 1,000,000 <PERIOD-TYPE> 9-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-END> SEP-30-1997 <CASH> 13 <SECURITIES> 2321 <RECEIVABLES> 1,230 <ALLOWANCES> 7 <INVENTORY> 552 <CURRENT-ASSETS> 4,623 <PP&E> 17,638 <DEPRECIATION> 6,451 <TOTAL-ASSETS> 18,198 <CURRENT-LIABILITIES> 6,252 <BONDS> 2,356 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 5,110 <TOTAL-LIABILITY-AND-EQUITY> 18,198 <SALES> 0 <TOTAL-REVENUES> 11,886 <CGS> 0 <TOTAL-COSTS> 10,774 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 144 <INCOME-PRETAX> 958 <INCOME-TAX> 378 <INCOME-CONTINUING> 580 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 580 <EPS-PRIMARY> 0 <EPS-DILUTED> 0