<ARTICLE>                                           UT
<MULTIPLIER>                                   1,000,000
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                              DEC-31-1998
<PERIOD-END>                                   SEP-30-1998
<BOOK-VALUE>                                   PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                      9,139
<OTHER-PROPERTY-AND-INVEST>                    4,746
<TOTAL-CURRENT-ASSETS>                         3,268
<TOTAL-DEFERRED-CHARGES>                       1,012
<OTHER-ASSETS>                                 0
<TOTAL-ASSETS>                                 18,165
<COMMON>                                       3,974
<CAPITAL-SURPLUS-PAID-IN>                      16
<RETAINED-EARNINGS>                            1,452
<TOTAL-COMMON-STOCKHOLDERS-EQ>                 5,442
<PREFERRED-MANDATORY>                          180
<PREFERRED>                                    509
<LONG-TERM-DEBT-NET>                           5,438
<SHORT-TERM-NOTES>                             252
<LONG-TERM-NOTES-PAYABLE>                      0
<COMMERCIAL-PAPER-OBLIGATIONS>                 0
<LONG-TERM-DEBT-CURRENT-PORT>                  1,714
<PREFERRED-STOCK-CURRENT>                      0
<CAPITAL-LEASE-OBLIGATIONS>                    7
<LEASES-CURRENT>                               0
<OTHER-ITEMS-CAPITAL-AND-LIAB>                 4,623
<TOT-CAPITALIZATION-AND-LIAB>                  18,165
<GROSS-OPERATING-REVENUE>                      7,028
<INCOME-TAX-EXPENSE>                           269
<OTHER-OPERATING-EXPENSES>                     6,092
<TOTAL-OPERATING-EXPENSES>                     6,092
<OPERATING-INCOME-LOSS>                        937
<OTHER-INCOME-NET>                             352
<INCOME-BEFORE-INTEREST-EXPEN>                 1,289
<TOTAL-INTEREST-EXPENSE>                       487
<NET-INCOME>                                   508
<PREFERRED-STOCK-DIVIDENDS>                    27
<EARNINGS-AVAILABLE-FOR-COMM>                  481
<COMMON-STOCK-DIVIDENDS>                       378
<TOTAL-INTEREST-ON-BONDS>                      0
<CASH-FLOW-OPERATIONS>                         818
<EPS-PRIMARY>                                  2.47
<EPS-DILUTED>                                  2.47