Additional Information of Expenses by Nature (Tables)

12 Months Ended

Dec. 31, 2019


	Years Ended December 31
	2017		2018		2019
	NT$		NT$		NT$
	(In Millions)		(In Millions)		(In Millions)
a. Depreciation of property, plant and equipment and right-of-use assets
Recognized in cost of revenue	$	235,985.2	$	264,804.7	$	256,530.9
Recognized in operating expenses		19,746.3		23,292.3		24,856.7
Recognized in other operating income and expenses		64.5		27.9		24.2


	$	255,796.0	$	288,124.9	$	281,411.8

b. Amortization of intangible assets
Recognized in cost of revenue	$	2,135.5	$	2,073.5	$	3,069.9
Recognized in operating expenses		2,211.2		2,347.9		2,402.5


	$	4,346.7	$	4,421.4	$	5,472.4


c. Research and development costs expensed as incurred	$	80,732.5	$	85,895.6	$	91,418.7

d. Employee benefits expenses
Post-employment benefits
Defined contribution plans	$	2,369.9	$	2,568.9	$	2,609.7
Defined benefit plans		271.5		281.8		259.6

		2,641.4		2,850.7		2,869.3
Other employee benefits		101,488.7		105,364.2		107,115.3


	$	104,130.1	$	108,214.9	$	109,984.6

Employee benefits expense summarized by function
Recognized in cost of revenue	$	61,026.1	$	63,597.7	$	64,702.0
Recognized in operating expenses		43,104.0		44,617.2		45,282.6


	$	104,130.1	$	108,214.9	$	109,984.6