v3.22.4
Accounts receivable (Tables)
 12 Months Ended
Dec. 31, 2022
Subclassifications of assets, liabilities and equities [abstract]  
Disclosure Of Detailed Information On Trade And Other Receivables
As at (millions)20222021
Accounts receivable – billed$223 $213 
Accounts receivable – unbilled201 175 
Other receivables5 28 
 429 416 
Allowance for doubtful accounts(1)(2)
Total$428 $414 
The following table presents an analysis of the age of customer accounts receivable. Any late payment charges are levied at a negotiated rate on outstanding non-current customer account balances.
As at (millions)20222021
Customer accounts receivable – billed, net of allowance for doubtful accounts 
Less than 30 days past billing date$154 $162 
30-60 days past billing date44 39 
61-90 days past billing date12 3 
More than 90 days past billing date12 7 
 222 211 
Accounts receivable – unbilled201 175 
Other receivables5 28 
Total$428 $414 
Disclosure Of Detailed Information On Allowance for Doubtful Accounts
The following table presents a summary of the activity related to our allowance for doubtful accounts:
Years Ended December 31 (millions)20222021
Balance, beginning of year$2 $5 
Recovery— (3)
Write-off (1)— 
Balance, end of year$1 $2