<ARTICLE> UT
<MULTIPLIER>                                1,000,000

                                       
<PERIOD-TYPE>                                 9-MOS
<FISCAL-YEAR-END>                            DEC-31-2000
<PERIOD-END>                                 SEP-30-2000
<BOOK-VALUE>                                 PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                     4,991
<OTHER-PROPERTY-AND-INVEST>                     927
<TOTAL-CURRENT-ASSETS>                        1,357
<TOTAL-DEFERRED-CHARGES>                      6,208
<OTHER-ASSETS>                                  184
<TOTAL-ASSETS>                               13,667
<COMMON>                                      1,397
<CAPITAL-SURPLUS-PAID-IN>                         3
<RETAINED-EARNINGS>                             301
<TOTAL-COMMON-STOCKHOLDERS-EQ>                1,727
<PREFERRED-MANDATORY>                            37
<PREFERRED>                                     137
<LONG-TERM-DEBT-NET>                          6,252
<SHORT-TERM-NOTES>                                0
<LONG-TERM-NOTES-PAYABLE>                         0
<COMMERCIAL-PAPER-OBLIGATIONS>                  284
<LONG-TERM-DEBT-CURRENT-PORT>                   306
<PREFERRED-STOCK-CURRENT>                         0
<CAPITAL-LEASE-OBLIGATIONS>                       0
<LEASES-CURRENT>                                  0
<OTHER-ITEMS-CAPITAL-AND-LIAB>                4,924
<TOT-CAPITALIZATION-AND-LIAB>                13,667
<GROSS-OPERATING-REVENUE>                     4,366
<INCOME-TAX-EXPENSE>                            316
<OTHER-OPERATING-EXPENSES>                    3,261
<TOTAL-OPERATING-EXPENSES>                    3,577
<OPERATING-INCOME-LOSS>                         789
<OTHER-INCOME-NET>                               71
<INCOME-BEFORE-INTEREST-EXPEN>                  860
<TOTAL-INTEREST-EXPENSE>                        333
<NET-INCOME>                                    523
<PREFERRED-STOCK-DIVIDENDS>                       8
<EARNINGS-AVAILABLE-FOR-COMM>                   515
<COMMON-STOCK-DIVIDENDS>                        130
<TOTAL-INTEREST-ON-BONDS>                       330
<CASH-FLOW-OPERATIONS>                          605
<EPS-BASIC>                                    2.94
<EPS-DILUTED>                                  2.92