<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONDENSED CONSOLIDATED FINANCIAL STATEMENTS CONTAINED IN THE COMPANY'S QUARTERLY
REPORT ON FORM 10-Q FOR THE QUARTER ENDED MARCH 31, 2000 AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000,000

                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-START>                             JAN-01-2000
<PERIOD-END>                               MAR-31-2000
<CASH>                                             126
<SECURITIES>                                     1,354
<RECEIVABLES>                                      282
<ALLOWANCES>                                        23
<INVENTORY>                                        238
<CURRENT-ASSETS>                                 2,154
<PP&E>                                           2,404
<DEPRECIATION>                                     808
<TOTAL-ASSETS>                                   4,265
<CURRENT-LIABILITIES>                              731
<BONDS>                                            223
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                             0
<OTHER-SE>                                       3,311
<TOTAL-LIABILITY-AND-EQUITY>                     4,265
<SALES>                                            698
<TOTAL-REVENUES>                                   814
<CGS>                                               86
<TOTAL-COSTS>                                       86
<OTHER-EXPENSES>                                   190<F1>
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   4
<INCOME-PRETAX>                                    385
<INCOME-TAX>                                       119
<INCOME-CONTINUING>                                266
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                       266
<EPS-BASIC>                                       0.26
<EPS-DILUTED>                                     0.25
<FN>
<F1>Item consists of research and development expenses.
</FN>