Pledged Assets (Tables)

12 Months Ended

Dec. 31, 2022

Disclosure Of Collateral [Abstract]

Assets Pledged as Collaterals

	December 31
	2021		2022
	NT$		NT$
	(In Millions)
Property, plant and equipment	$	2,432	$	2,403
Restricted assets (included in other assets - others)		163		131
	$	2,595	$	2,534