Annual report pursuant to Section 13 and 15(d)

Goodwill and Intangible Assets - Rollforward (Details)

v3.22.0.1
Goodwill and Intangible Assets - Rollforward (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Goodwill [Roll Forward]    
Balance at the beginning of the period $ 746 $ 7
Acquisitions   739
Acquisition adjustments during measurement period 16  
Balance at the end of the period 762 746
Accumulated goodwill impairment loss 39  
GCI Holdings    
Goodwill [Roll Forward]    
Balance at the beginning of the period 739  
Acquisitions   739
Acquisition adjustments during measurement period 16  
Balance at the end of the period 755 739
Corporate and other.    
Goodwill [Roll Forward]    
Balance at the beginning of the period 7 7
Balance at the end of the period $ 7 $ 7