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Goodwill and Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2020
Goodwill And Intangible Assets Disclosure [Abstract]  
Segment allocation of goodwill The changes in Dominion Energy’s carrying amount and segment allocation of goodwill are presented below:

 

 

Dominion Energy Virginia

 

 

Gas Distribution

 

 

Dominion Energy South Carolina

 

 

Contracted Assets

 

 

Corporate and Other

 

Total

 

(millions)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Dominion Energy

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Balance at December 31, 2018(1)

 

$

2,106

 

 

$

2,497

 

 

$

—

 

 

$

242

 

 

$

14

 

$

4,859

 

SCANA Combination (2)

 

 

—

 

 

 

1,015

 

 

 

1,521

 

 

 

—

 

 

 

73

 

 

2,609

 

Contribution of SEMI to Wrangler(3)

 

 

—

 

 

 

—

 

 

 

—

 

 

 

—

 

 

 

(73

)

 

(73

)

Balance at December 31, 2019(1)

 

$

2,106

 

 

$

3,512

 

 

$

1,521

 

 

$

242

 

 

$

14

 

$

7,395

 

Contribution to Wrangler(3)

 

 

—

 

 

 

—

 

 

 

—

 

 

 

—

 

 

 

(14

)

 

(14

)

Balance at December 31, 2020(1)

 

$

2,106

 

 

$

3,512

 

 

$

1,521

 

 

$

242

 

 

$

—

 

$

7,381

 

 

(1) Goodwill amounts do not contain any accumulated impairment losses.

(2) See Note 3 for more information on the SCANA Combination. As a result of the December 2019 segment realignment, the acquired goodwill was reassigned using a relative fair value approach.

(3) See Note 9 for additional information including amounts reclassified to held for sale at December 31, 2020.
Components of intangible assets

The components of intangible assets are as follows:

 

 

 

2020

 

 

2019

 

At December 31,

 

Gross Carrying Amount

 

 

Accumulated Amortization

 

 

Gross Carrying Amount

 

 

Accumulated Amortization

 

(millions)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Dominion Energy

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Software, licenses and other

 

$

1,295

 

 

$

530

 

 

$

1,162

 

 

$

477

 

Virginia Power

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Software, licenses and other

 

$

482

 

 

$

148

 

 

$

406

 

 

$

135

 
Annual amortization expense of intangible assets

Annual amortization expense for these intangible assets is estimated to be as follows:

 

 

 

2021

 

2022

 

2023

 

2024

 

2025

 

(millions)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Dominion Energy

 

$

77

 

$

56

 

$

42

 

$

34

 

$

26

 

Virginia Power

 

$

32

 

$

18

 

$

12

 

$

9

 

$

6