v3.25.3
Goodwill and Intangible Assets (Tables)
9 Months Ended
Sep. 30, 2025
Goodwill and Intangible Assets  
Summary of goodwill and non-amortizing intangible assets

​

​

​

​

​

​

​

​

​

​

​

​

Goodwill

​

Cable Certificates

​

Other

​

Total

​

Balance at January 1, 2025

$

746

​

550

​

41

​

1,337

​

Impairments

​

(108)

​

(401)

​

(16)

​

(525)

​

Balance at September 30, 2025

$

638

​

149

​

25

​

812

​

Schedule of intangible assets subject to amortization

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

    

September 30, 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

​

(204)

 

311

​

​

515

 

(173)

 

342

​

Other amortizable intangible assets

​

 

177

​

(108)

 

69

​

 

165

 

(96)

 

69

​

Total

​

$

692

​

(312)

 

380

​

​

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):

​

​

​

​

​

​

Remainder of 2025

​

$

14

​

2026

​

$

55

​

2027

​

$

52

​

2028

​

$

50

​

2029

​

$

44

​

​