XML 79 R56.htm IDEA: XBRL DOCUMENT v3.23.3
Device Payment Plan Agreement and Wireless Service Receivables - Allowance for Credit Losses (Detail)
$ in Millions
 9 Months Ended
Sep. 30, 2023
USD ($)
Financing Receivable, Allowance for Credit Loss [Roll Forward]  
Beginning balance $ 881
Ending balance 1,045
Device payment plan agreement  
Financing Receivable, Allowance for Credit Loss [Roll Forward]  
Beginning balance 881
Current period provision for expected credit losses 1,011
Write-offs charged against the allowance (872)
Recoveries collected 25
Ending balance 1,045
Wireless Service Plan Receivables  
Financing Receivable, Allowance for Credit Loss [Roll Forward]  
Beginning balance 143
Current period provision for expected credit losses 375
Write-offs charged against the allowance (342)
Recoveries collected 27
Ending balance $ 203