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Intangible Assets, Goodwill and Other (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Goodwill and Finite-Lived Intangible Assets [Line Items]      
Finite-lived intangible assets, gross $ 7,992 $ 7,993  
Accumulated amortization of intangible assets (5,211) (4,814)  
Finite-Lived Intangible Assets, Net 2,781 3,179  
Amortization expense 397 447 $ 446
Estimated annual amortization expense related to intangible assets - Year 1 375    
Estimated annual amortization expense related to intangible assets - Year 2 371    
Estimated annual amortization expense related to intangible assets - Year 3 288    
Estimated annual amortization expense related to intangible assets - Year 4 284    
Estimated annual amortization expense related to intangible assets - Year 5 284    
Goodwill 5,127 10,085 10,085
Goodwill Impairment 4,958 0 0
Fiber [Member]      
Goodwill and Finite-Lived Intangible Assets [Line Items]      
Goodwill 0 4,958 4,958
Goodwill Impairment 4,958    
Towers [Member]      
Goodwill and Finite-Lived Intangible Assets [Line Items]      
Goodwill 5,127 5,127 $ 5,127
Goodwill Impairment 0    
Site Rental Contracts and Customer Relationships [Member]      
Goodwill and Finite-Lived Intangible Assets [Line Items]      
Finite-lived intangible assets, gross 7,879 7,880  
Accumulated amortization of intangible assets (5,152) (4,758)  
Finite-Lived Intangible Assets, Net 2,727 3,122  
Other Intangible Assets [Member]      
Goodwill and Finite-Lived Intangible Assets [Line Items]      
Finite-lived intangible assets, gross 113 113  
Accumulated amortization of intangible assets (59) (56)  
Finite-Lived Intangible Assets, Net $ 54 $ 57