v3.24.0.1
Revenue from Contracts with Customers - Schedule of Disaggregation of Revenue (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2023
USD ($)
customer_category
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Disaggregation of Revenue [Line Items]      
Number of customer categories | customer_category 3    
Revenues $ 78,558 $ 79,571 $ 80,118
Postpaid phone revenues      
Disaggregation of Revenue [Line Items]      
Revenues 43,449 41,711 39,154
Postpaid other revenues      
Disaggregation of Revenue [Line Items]      
Revenues 5,243 4,208 3,408
Total postpaid service revenues      
Disaggregation of Revenue [Line Items]      
Revenues $ 48,692 $ 45,919 $ 42,562