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Trade and other receivables (Tables)
 12 Months Ended
Dec. 31, 2021
Subclassifications of assets, liabilities and equities [abstract]  
Schedule of trade and other receivables
FOR THE YEAR ENDED DECEMBER 31 NOTE 2021 2020
Trade receivables (1)
3,843  3,414 
Allowance for revenue adjustments (169) (185)
Allowance for doubtful accounts 29 (136) (149)
Current tax receivable 121  92 
Commodity taxes receivable 102  122 
Other accounts receivable 188  234 
Total trade and other receivables 3,949  3,528 
(1)The details of securitized trade receivables are set out in Note 24, Debt due within one year.
The following table summarizes our wireless device financing plan receivables at December 31, 2021.
FOR THE YEAR ENDED DECEMBER 31 NOTE 2021 2020
Current 1,040  649 
Non-current 21 387  399 
Total wireless device financing plan receivables (1)
 1,427  1,048 
(1) Excludes allowance for doubtful accounts and allowance for revenue adjustments on the current portion of $44 million and $28 million at December 31, 2021 and December 31, 2020, respectively, and allowance for doubtful accounts and allowance for revenue adjustments on the non-current portion of $15 million and $17 million at December 31, 2021 and December 31, 2020, respectively.