XML 69 R51.htm IDEA: XBRL DOCUMENT v3.22.0.1
Debt and Other Obligations (Debt Purchases and Repayments) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Extinguishment of Debt [Line Items]      
Principal amount $ 1,950 $ 2,400 $ 12
Cash paid [1] 2,089 2,490 12
Gains (losses) on retirement of long-term obligations [2] (145) (95) (2)
Fixed Rate Debt 2009 Securitized Notes A-1 [Member]      
Extinguishment of Debt [Line Items]      
Principal amount     12
Cash paid [1]     12
Gains (losses) on retirement of long-term obligations [2]     (1)
3.400% Senior Notes [Member]      
Extinguishment of Debt [Line Items]      
Principal amount   850  
Cash paid [1]   863  
Gains (losses) on retirement of long-term obligations [2]   (13)  
2.250% Senior Notes [Member]      
Extinguishment of Debt [Line Items]      
Principal amount   700  
Cash paid [1]   714  
Gains (losses) on retirement of long-term obligations [2]   (16)  
4.875% Senior Notes [Member]      
Extinguishment of Debt [Line Items]      
Principal amount   850  
Cash paid   913  
Gains (losses) on retirement of long-term obligations   $ (66)  
2016 Term Loan A [Member]      
Extinguishment of Debt [Line Items]      
Principal amount 0   0
Cash paid [1] 0   0
Gains (losses) on retirement of long-term obligations [2] (1)   $ (1)
5.250% Senior Notes [Member]      
Extinguishment of Debt [Line Items]      
Principal amount 1,650    
Cash paid [1] 1,789    
Gains (losses) on retirement of long-term obligations [2] (143)    
2015 Tower Revenue Notes 3.222% due 2042 [Member]      
Extinguishment of Debt [Line Items]      
Principal amount 300    
Cash paid [1] 300    
Gains (losses) on retirement of long-term obligations [2] $ (1)    
[1] Exclusive of accrued interest.
[2] Inclusive of the write-off of the respective deferred financing costs.