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

                             
<PERIOD-TYPE>                                  9-MOS
<FISCAL-YEAR-END>                            DEC-31-1999
<PERIOD-END>                                 SEP-30-1999
<BOOK-VALUE>                                 PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                      4,846
<OTHER-PROPERTY-AND-INVEST>                      605
<TOTAL-CURRENT-ASSETS>                         1,632
<TOTAL-DEFERRED-CHARGES>                       5,984
<OTHER-ASSETS>                                   204
<TOTAL-ASSETS>                                13,270
<COMMON>                                       2,110
<CAPITAL-SURPLUS-PAID-IN>                          1
<RETAINED-EARNINGS>                             (239)
<TOTAL-COMMON-STOCKHOLDERS-EQ>                 1,873
<PREFERRED-MANDATORY>                             56
<PREFERRED>                                      138
<LONG-TERM-DEBT-NET>                           6,051
<SHORT-TERM-NOTES>                                 0
<LONG-TERM-NOTES-PAYABLE>                          0
<COMMERCIAL-PAPER-OBLIGATIONS>                   122
<LONG-TERM-DEBT-CURRENT-PORT>                    146
<PREFERRED-STOCK-CURRENT>                          0
<CAPITAL-LEASE-OBLIGATIONS>                        1
<LEASES-CURRENT>                                   0
<OTHER-ITEMS-CAPITAL-AND-LIAB>                 4,884
<TOT-CAPITALIZATION-AND-LIAB>                 13,270
<GROSS-OPERATING-REVENUE>                      4,183
<INCOME-TAX-EXPENSE>                             278
<OTHER-OPERATING-EXPENSES>                     3,055
<TOTAL-OPERATING-EXPENSES>                     3,333
<OPERATING-INCOME-LOSS>                          850
<OTHER-INCOME-NET>                               (64)
<INCOME-BEFORE-INTEREST-EXPEN>                   786
<TOTAL-INTEREST-EXPENSE>                         315
<NET-INCOME>                                     444
<PREFERRED-STOCK-DIVIDENDS>                       10
<EARNINGS-AVAILABLE-FOR-COMM>                    434
<COMMON-STOCK-DIVIDENDS>                         150
<TOTAL-INTEREST-ON-BONDS>                        296
<CASH-FLOW-OPERATIONS>                           726
<EPS-BASIC>                                     2.17
<EPS-DILUTED>                                   2.15