v3.26.1
Device Payment Plan Agreement and Wireless Service Receivables - Schedule of Receivables (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Financing Receivable, after Allowance for Credit Loss, Current [Abstract]    
Accounts receivable, net $ 15,706 $ 15,777
Accounts and Financing Receivable, after Allowance for Credit Loss, Current [Abstract]    
Accounts receivable 27,966 28,347
Less Allowance for credit losses 1,311 1,250
Accounts receivable, net 26,655 $ 27,097
Device payment plan agreement    
Financing Receivable, after Allowance for Credit Loss, Current [Abstract]    
Accounts receivable 16,565  
Less Allowance for credit losses 859  
Accounts receivable, net 15,706  
Wireless service    
Accounts Receivable, after Allowance for Credit Loss, Current [Abstract]    
Accounts receivable 5,983  
Less Allowance for credit losses 253  
Accounts receivable, net 5,730  
Other receivables    
Accounts Receivable, after Allowance for Credit Loss, Current [Abstract]    
Accounts receivable 5,418  
Less Allowance for credit losses 199  
Accounts receivable, net $ 5,219