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Equipment Installment Plans (Table)
12 Months Ended
Dec. 31, 2022
Receivables [Abstract]  
Equipment installment plan receivables
The following table summarizes equipment installment plan receivables.

December 31,20222021
(Dollars in millions)  
Equipment installment plan receivables, gross$1,211 $1,085 
Allowance for credit losses(96)(72)
Equipment installment plan receivables, net$1,115 $1,013 
Net balance presented in the Consolidated Balance Sheet as:
Accounts receivable — Customers and agents (Current portion)$646 $639 
Other assets and deferred charges (Non-current portion)469 374 
Equipment installment plan receivables, net$1,115 $1,013 
Equipment installment plan receivables credit categories
The balance and aging of the equipment installment plan receivables on a gross basis by credit category were as follows:
 December 31, 2022December 31, 2021
 Lowest RiskLower RiskSlight RiskHigher RiskTotalLowest RiskLower RiskSlight RiskHigher RiskTotal
(Dollars in millions)      
Unbilled$1,016 $98 $22 $5 $1,141 $896 $94 $24 $$1,019 
Billed — current41 5 2  48 40 47 
Billed — past due13 6 2 1 22 10 19 
Total$1,070 $109 $26 $6 $1,211 $946 $105 $27 $$1,085 
The balance of the equipment installment plan receivables as of December 31, 2022 on a gross basis by year of origination were as follows:
202020212022
Total
(Dollars in millions)
Lowest Risk$43 $303 $724 $1,070 
Lower Risk28 78 109 
Slight Risk— 22 26 
Higher Risk— 6 
Total$46 $336 $829 $1,211 
Equipment installment plans allowance for credit losses
Activity for the years ended December 31, 2022 and 2021, in the allowance for credit losses for equipment installment plan receivables was as follows:
 20222021
(Dollars in millions)  
Allowance for credit losses, beginning of year$72 $78 
Bad debts expense100 38 
Write-offs, net of recoveries1
(76)(44)
Allowance for credit losses, end of year$96 $72 
1Write-offs increased in 2022 as customer payment behavior returned to pre-COVID-19 pandemic levels.