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INVESTMENTS IN UNCONSOLIDATED ENTITIES INVESTMENT IN UNCONSOLIDATED ENTITIES (Tables)
 3 Months Ended
Mar. 31, 2018
Investments [Abstract]  
Business Acquisition, Results of Operations Summarized income statement information for Oncor Holdings for the period from the March 9, 2018 acquisition date is as follows:
SUMMARIZED FINANCIAL INFORMATION – ONCOR HOLDINGS
(Dollars in millions)
 
March 9 - March 31, 2018
Gross revenues
$
236

Operating expense
(185
)
Income from operations
51

Interest expense
(22
)
Income tax expense
(7
)
Net income
19

Earnings
15