Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Property and Equipment (Details)

v3.22.0.1
Summary of Significant Accounting Policies - Property and Equipment (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Property, Plant and Equipment [Line Items]    
Property and equipment $ 1,227 $ 1,109
Less accumulated depreciation (196) (10)
Property and equipment, net 1,031 1,099
Depreciation expense 192 9
Capitalized interest costs 2  
Land    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 16 16
Building    
Property, Plant and Equipment [Line Items]    
Remaining useful lives of property and equipment 25 years  
Property and equipment, gross $ 98 94
Telephony transmission equipment and distribution facilities    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 705 667
Telephony transmission equipment and distribution facilities | Minimum    
Property, Plant and Equipment [Line Items]    
Remaining useful lives of property and equipment 5 years  
Telephony transmission equipment and distribution facilities | Maximum    
Property, Plant and Equipment [Line Items]    
Remaining useful lives of property and equipment 20 years  
Cable transmission equipment and distribution facilities    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 94 84
Cable transmission equipment and distribution facilities | Minimum    
Property, Plant and Equipment [Line Items]    
Remaining useful lives of property and equipment 5 years  
Cable transmission equipment and distribution facilities | Maximum    
Property, Plant and Equipment [Line Items]    
Remaining useful lives of property and equipment 30 years  
Support equipment and systems    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 97 86
Support equipment and systems | Minimum    
Property, Plant and Equipment [Line Items]    
Remaining useful lives of property and equipment 3 years  
Support equipment and systems | Maximum    
Property, Plant and Equipment [Line Items]    
Remaining useful lives of property and equipment 20 years  
Fiber optic cable systems    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 69 68
Fiber optic cable systems | Minimum    
Property, Plant and Equipment [Line Items]    
Remaining useful lives of property and equipment 15 years  
Fiber optic cable systems | Maximum    
Property, Plant and Equipment [Line Items]    
Remaining useful lives of property and equipment 25 years  
Other    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 40 33
Other | Minimum    
Property, Plant and Equipment [Line Items]    
Remaining useful lives of property and equipment 2 years  
Other | Maximum    
Property, Plant and Equipment [Line Items]    
Remaining useful lives of property and equipment 20 years  
Construction in progress    
Property, Plant and Equipment [Line Items]    
Property and equipment, gross $ 108 $ 61