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ACCOUNTS RECEIVABLE | 12 Months Ended
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Dec. 31, 2020
Subclassifications of assets, liabilities and equities [abstract] |
ACCOUNTS RECEIVABLE | ACCOUNTS RECEIVABLE ACCOUNTING POLICY Accounts receivable represent amounts owing to us that are currently due and collectible, as well as amounts owed to us under device or accessory financing agreements that have not yet been billed. We initially recognize accounts receivable on the date they originate. We measure accounts receivable initially at fair value, and subsequently at amortized cost, with changes recognized in net income. We measure an impairment loss for accounts receivable as the excess of the carrying amount over the present value of future cash flows we expect to derive from it, if any. The excess is allocated to an allowance for doubtful accounts and recognized as a loss in net income. EXPLANATORY INFORMATION
|  | As at December 31
(In millions of dollars) | Note | 2020 | 2019
Customer accounts receivable |  | 3,170 |  | 1,727 |
Other accounts receivable |  | 656 |  | 785 |
Allowance for doubtful accounts | 17 |  | (222) |  | (60) |
Total accounts receivable |  | 3,604 |  | 2,452 |
Current |  | 2,856 |  | 2,376 |
Long-term |  | 748 |  | 76 |
Total accounts receivable |  | 3,604 |  | 2,452 |
The long-term portion of our accounts receivable is recorded within "financing receivables" on our Consolidated Statements of Financial Position and is composed of our financing receivables that will be billed to customers beyond the next 12 months.

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- Definition The disclosure of trade and other receivables. [Refer: Trade and other receivables] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 10 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_10_e&doctype=Standard -URIDate 2020-01-01 + Details
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