The amount of an allowance account used to record impairments to financial assets due to credit losses. [Refer: Financial assets]

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- Definition

The amount of current trade receivables. [Refer: Trade receivables]

+ References

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

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Trade Notes and Accounts Receivable, Net - Summary of Trade Notes and Accounts Receivable, Net (Detail) $ in Millions, $ in Millions	Dec. 31, 2020 TWD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 TWD ($)	Jan. 01, 2019 TWD ($)
Disclosure Of Financial Assets [Line Items]
Trade notes and accounts receivable	$ 22,622	$ 806	$ 26,408	$ 30,076
Less: Loss allowance	(2,154)		(2,360)
Gross carrying amount [Member]
Disclosure Of Financial Assets [Line Items]
Trade notes and accounts receivable	$ 24,776		$ 28,768