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

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Goodwill

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Cable Certificates

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Other

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Total

 

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amounts in millions

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Balance at December 31, 2023

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$

746

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550

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41

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1,337

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Balance at December 31, 2024

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​

746

 

550

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41

 

1,337

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Impairments

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(108)

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(401)

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(16)

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(525)

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Balance at December 31, 2025

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$

638

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149

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25

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812

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Schedule of intangible assets subject to amortization

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December 31, 2025

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December 31, 2024

 

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Gross

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Net

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Gross

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Net

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carrying

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Accumulated

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carrying

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carrying

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Accumulated

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carrying

 

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amount

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amortization

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amount

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amount

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amortization

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amount

 

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amounts in millions

 

Customer relationships

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$

515

 

(215)

 

300

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515

 

(173)

 

342

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Other amortizable intangible assets

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184

 

(112)

 

72

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165

 

(96)

 

69

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Total

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$

699

 

(327)

 

372

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​

680

 

(269)

 

411

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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):

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2026

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$

56

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2027

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$

53

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2028

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$

51

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2029

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$

45

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2030

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$

39

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