Annual report pursuant to Section 13 and 15(d)

Acquisition - Additional Acquisition Information (Details)

v3.22.0.1
Acquisition - Additional Acquisition Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 18, 2020
Dec. 31, 2021
Dec. 31, 2020
Business Acquisition [Line Items]      
Intangible assets subject to amortization     $ 639
Increase to goodwill   $ 16  
GCI Liberty Inc      
Business Acquisition [Line Items]      
Intangible assets subject to amortization $ 639    
Acquired goodwill deductible for income tax purposes $ 134    
Net earnings (loss) from continuing operations     $ 28
GCI Liberty Inc | Customer relationships      
Business Acquisition [Line Items]      
Useful life 14 years    
GCI Liberty Inc | Right-to-use      
Business Acquisition [Line Items]      
Useful life 12 years