XML 55 R61.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Long-Term Debt and Revolving Promissory Note - Additional Information (Details) - USD ($)
12 Months Ended
Feb. 20, 2015
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Jan. 15, 2020
Sep. 30, 2017
Apr. 18, 2012
Debt instruments              
Long-term debt, gross   $ 6,066,000,000          
Repayments of debt   0          
Note payable - affiliate   1,069,000,000 $ 1,008,000,000        
Interest   (55,000,000) (55,000,000)        
Net loss on early retirement of debt   0 30,000,000 $ 5,000,000      
Amount of gross interest expense, net of capitalized interest and interest expense - affiliates              
Gross interest expense   407,000,000 472,000,000 497,000,000      
Capitalized interest   (27,000,000) (24,000,000) (32,000,000)      
Total interest expense   380,000,000 448,000,000 465,000,000      
Interest expense-affiliates, net   62,000,000 57,000,000 $ 63,000,000      
Qwest Corporation | Senior notes              
Debt instruments              
Long-term debt, gross   $ 5,956,000,000 5,956,000,000        
Debt retired     1,300,000,000        
Qwest Corporation | Senior notes | Minimum              
Debt instruments              
Interest rate, stated percentage (as a percent)   6.125%          
Qwest Corporation | Senior notes | Maximum              
Debt instruments              
Interest rate, stated percentage (as a percent)   7.75%          
Qwest Corporation | Term loan              
Debt instruments              
Long-term debt, gross   $ 100,000,000 $ 100,000,000        
Qwest Corporation | Term loan | London Interbank Offered Rate (LIBOR)              
Debt instruments              
Interest rate margin (as a percent)   2.00%          
Qwest Corporation | 7.5% Notes due 2051 | Senior notes              
Debt instruments              
Interest rate, stated percentage (as a percent)     7.50%        
Repayments of debt     $ 164,000,000        
Qwest Corporation | 7.0% Notes due 2052 | Senior notes              
Debt instruments              
Interest rate, stated percentage (as a percent)     7.00%        
Repayments of debt     $ 925,000,000        
Qwest Corporation | 7.25% Notes due 2035 | Senior notes              
Debt instruments              
Interest rate, stated percentage (as a percent)     7.25%        
Repayments of debt     $ 250,000,000        
Net loss on early retirement of debt     34,000,000        
Qwest Corporation | Term Loan | Term loan              
Debt instruments              
Face amount of debt instrument $ 100,000,000            
Long-term debt, gross   $ 100,000,000          
Term Loan covenant Debt to EBITDA Ratio   2.85          
Qwest Corporation | Term Loan | Term loan | Minimum | London Interbank Offered Rate (LIBOR)              
Debt instruments              
Interest rate margin (as a percent) 1.50%            
Qwest Corporation | Term Loan | Term loan | Minimum | Base Rate              
Debt instruments              
Interest rate margin (as a percent) 0.50%            
Qwest Corporation | Term Loan | Term loan | Maximum | London Interbank Offered Rate (LIBOR)              
Debt instruments              
Interest rate margin (as a percent) 2.50%            
Qwest Corporation | Term Loan | Term loan | Maximum | Base Rate              
Debt instruments              
Interest rate margin (as a percent) 1.50%            
CenturyLink, Inc. affiliate | Qwest Corporation | Revolving promissory note              
Debt instruments              
Face amount of debt instrument           $ 965,000,000  
Maximum borrowing capacity             $ 1,000,000,000.0
Note payable - affiliate   $ 1,069,000,000 1,008,000,000        
Short-term debt, weighted average interest rate (as a percent)   5.843%          
Interest   $ (31,000,000) $ (30,000,000)        
Amount of gross interest expense, net of capitalized interest and interest expense - affiliates              
Capitalized interest   $ (104,000,000)          
Subsequent Event | Qwest Corporation | 6.875% Notes Due 2033 | Senior notes              
Debt instruments              
Interest rate, stated percentage (as a percent)         6.875%    
Amount of gross interest expense, net of capitalized interest and interest expense - affiliates              
Senior notes fully redeemed         $ 850,000,000    
Subsequent Event | Qwest Corporation | 7.125% Notes Due 2043 | Senior notes              
Debt instruments              
Interest rate, stated percentage (as a percent)         7.125%    
Amount of gross interest expense, net of capitalized interest and interest expense - affiliates              
Senior notes fully redeemed         $ 250,000,000