<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONDENSED CONSOLIDATED FINANCIAL STATEMENTS CONTAINED IN THE COMPANY'S QUARTERLY
REPORT ON FROM 10-Q FOR THE QUARTER ENDED SEPTEMBER 30, 1998 AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL INFORMATION.
</LEGEND>
<MULTIPLIER> 1,000,000
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               SEP-30-1998
<CASH>                                             104
<SECURITIES>                                     1,021
<RECEIVABLES>                                      313
<ALLOWANCES>                                        17
<INVENTORY>                                        109
<CURRENT-ASSETS>                                 1,696
<PP&E>                                           1,966
<DEPRECIATION>                                     568
<TOTAL-ASSETS>                                   3,444
<CURRENT-LIABILITIES>                              875
<BONDS>                                            223
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                             0
<OTHER-SE>                                       2,346
<TOTAL-LIABILITY-AND-EQUITY>                     3,444
<SALES>                                          1,820
<TOTAL-REVENUES>                                 1,963
<CGS>                                              250
<TOTAL-COSTS>                                      250
<OTHER-EXPENSES>                                   861
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   9
<INCOME-PRETAX>                                    899
<INCOME-TAX>                                       274
<INCOME-CONTINUING>                                  0
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                       625
<EPS-PRIMARY>                                     2.45
<EPS-DILUTED>                                     2.37