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INVESTMENTS IN UNCONSOLIDATED ENTITIES INVESTMENT IN UNCONSOLIDATED ENTITIES (Tables)
 6 Months Ended
Jun. 30, 2018
Investments [Abstract]  
Business Acquisition, Results of Operations Summarized income statement information for Oncor Holdings for the three months ended June 30, 2018 and for the period since the acquisition date through June 30, 2018 are as follows:
SUMMARIZED FINANCIAL INFORMATION – ONCOR HOLDINGS
 
(Dollars in millions)
 
 
Three months ended June 30, 2018
March 9 - June 30, 2018
Operating revenues
$
1,021

$
1,257

Operating expense
(730
)
(915
)
Income from operations
291

342

Interest expense
(87
)
(109
)
Income tax expense
(45
)
(52
)
Net income
141

160

Noncontrolling interest held by TTI
(28
)
(32
)
Earnings attributable to Sempra Energy(1)
113

128


(1) 
Earnings at Oncor Holdings differ from earnings at the Sempra Texas Utility segment due to basis differences in AOCI.