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CONDENSED STATEMENTS OF CONSOLIDATED INCOME (Unaudited) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Revenues $ 630 $ 532
Expenses:    
Operation and maintenance 290 239
Depreciation and amortization 176 154
Taxes other than income taxes 58 55
Total 524 448
Operating Income 106 84
Other Income (Expense):    
Interest and other finance charges (24) (30)
Interest on transition and system restoration bonds (30) (35)
Other, net 3 9
Total (51) (56)
Income Before Income Taxes 55 28
Income tax expense 20 9
Net Income $ 35 $ 19