v3.25.4
Goodwill and Intangible Assets - Goodwill and Non-amortizing Intangible Assets (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Goodwill    
Balance at beginning, Goodwill $ 746 $ 746
Impairments, Goodwill $ (108)  
Goodwill, Impairment Loss, Statement of Income or Comprehensive Income [Extensible Enumeration] Impairments  
Balance at ending, Goodwill $ 638 746
Total    
Balance at beginning 1,337 1,337
Impairments (525) 0
Balance at ending 812 1,337
Accumulated goodwill impairment losses 108  
Cable Certificates    
Cable Certificates and Other    
Balance at beginning, Cable Certificates and Other 550 550
Impairments, Cable Certificates and Other $ (401)  
Impairment, Intangible Asset, Indefinite-Lived (Excluding Goodwill), Statement of Income or Comprehensive Income [Extensible Enumeration] Impairments  
Balance at ending, Cable Certificates and Other $ 149 550
Other    
Cable Certificates and Other    
Balance at beginning, Cable Certificates and Other 41 41
Impairments, Cable Certificates and Other $ (16)  
Impairment, Intangible Asset, Indefinite-Lived (Excluding Goodwill), Statement of Income or Comprehensive Income [Extensible Enumeration] Impairments  
Balance at ending, Cable Certificates and Other $ 25 $ 41