Inventories (Tables)

12 Months Ended

Dec. 31, 2022

Classes of current inventories [abstract]

Summary of Inventories

	December 31
	2021		2022
	NT$		NT$
	(In Millions)
Merchandise	$	4,070	$	3,978
Project in process		4,805		4,859
Work in process		145		98
Raw materials		224		279
		9,244		9,214
Land held under development		1,999		1,999
Construction in progress		84		103
	$	11,327	$	11,316