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Trade and other receivables
12 Months Ended
Dec. 31, 2020
Subclassifications of assets, liabilities and equities [abstract]  
Trade and other receivables
Note 12 Trade and other receivables
FOR THE YEAR ENDED DECEMBER 31 NOTE 2020 2019
Trade receivables (1)
3,414  2,981 
Allowance for revenue adjustments (185) (104)
Allowance for doubtful accounts 28 (149) (62)
Commodity taxes receivable 122  12 
Current tax receivable 92  23 
Other accounts receivable 234  188 
Total trade and other receivables 3,528  3,038 
(1)The details of securitized trade receivables are set out in Note 23, Debt due within one year.
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Wireless device financing plan receivables
Wireless device financing plan receivables represent amounts owed to us under financing agreements that have not yet been billed. The current portion of these balances is included in Trade receivables within the Trade and other receivables line item on our statements of financial position and the long-term portion is included within the Other non-current assets line item on our statements of financial position.
The following table summarizes our wireless device financing plan receivables at December 31, 2020.
FOR THE YEAR ENDED DECEMBER 31 NOTE 2020 2019
Current 649  85 
Non-current 20 399  65 
Total wireless device financing plan receivables (1)
1,048  150 
(1) Excludes allowance for doubtful accounts and allowance for revenue adjustments on the current portion of $28 million and $9 million at December 31, 2020 and December 31, 2019, respectively, and allowance for doubtful accounts and allowance for revenue adjustments on the non-current portion of $17 million and $5 million at December 31, 2020 and December 31, 2019, respectively.