v3.25.4
Goodwill and Intangible Assets (Tables)
12 Months Ended
Dec. 31, 2025
Goodwill and Intangible Assets  
Summary of goodwill and indefinite lived intangible assets

Goodwill

Cable Certificates

Other

Total

 

 

amounts in millions

Balance at December 31, 2023

$

746

550

41

1,337

Balance at December 31, 2024

746

 

550

41

 

1,337

Impairments

(108)

(401)

(16)

(525)

Balance at December 31, 2025

$

638

149

25

812

Schedule of intangible assets subject to amortization

  ​ ​ ​

December 31, 2025

  ​ ​ ​

December 31, 2024

 

Gross

Net

Gross

Net

carrying

Accumulated

carrying

carrying

Accumulated

carrying

 

  ​ ​ ​

amount

  ​ ​ ​

amortization

  ​ ​ ​

amount

  ​ ​ ​

amount

  ​ ​ ​

amortization

  ​ ​ ​

amount

 

amounts in millions

 

Customer relationships

$

515

 

(215)

 

300

515

 

(173)

 

342

Other amortizable intangible assets

 

184

 

(112)

 

72

 

165

 

(96)

 

69

Total

$

699

 

(327)

 

372

680

 

(269)

 

411

Schedule of estimated amortization expense for amortizable intangible assets Amortization expense for amortizable intangible assets for each of the five succeeding fiscal years is estimated to be (amounts in millions):

2026

$

56

2027

$

53

2028

$

51

2029

$

45

2030

$

39