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Operating Segments (Tables)
9 Months Ended
Sep. 30, 2023
Segment Reporting [Abstract]  
Schedule of Segment Reporting Information, by Segment

(millions)

 

External
Revenue

 

 

Comprehensive
Income (Loss)
Available
(Attributable) to
Common
Shareholder

 

Three Months Ended September 30, 2023

 

 

 

 

 

 

Dominion Energy South Carolina

 

$

848

 

 

$

137

 

Corporate and Other

 

 

 

 

 

4

 

Consolidated Total

 

$

848

 

 

$

141

 

 

 

 

 

 

 

Three Months Ended September 30, 2022

 

 

 

 

 

 

Dominion Energy South Carolina

 

$

1,083

 

 

$

169

 

Corporate and Other

 

 

 

 

 

(1

)

Consolidated Total

 

$

1,083

 

 

$

168

 

 

 

 

 

 

 

Nine Months Ended September 30, 2023

 

 

 

 

 

 

Dominion Energy South Carolina

 

$

2,311

 

 

$

286

 

Corporate and Other

 

 

 

 

 

23

 

Consolidated total

 

$

2,311

 

 

$

309

 

 

 

 

 

 

 

 

Nine Months Ended September 30, 2022

 

 

 

 

 

 

Dominion Energy South Carolina

 

$

2,841

 

 

$

392

 

Corporate and Other

 

 

 

 

 

(2

)

Consolidated total

 

$

2,841

 

 

$

390