revenue from contracts with customers - Accounts receivable (Details) - CAD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Accounts receivable
Customer accounts receivable	$ 2,194	$ 1,986
Accrued receivables - customer	313	241
Allowance for doubtful accounts	(81)	(119)
Total	2,426	2,108
Accrued receivables - other	245	247
Accounts receivable - current	$ 2,671	$ 2,355

The amount of current accrued income other than current contract assets. [Refer: Accrued income other than contract assets]

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The amount of current receivables from contracts with customers. [Refer: Receivables from contracts with customers]

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The amount of current other receivables. [Refer: Other receivables]

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The amount of current trade receivables and current other receivables. [Refer: Current trade receivables; Other current receivables]

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The amount due from contracts with customers for goods or services that have been delivered or sold in the normal course of business, reduced to their estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

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