Cash and Cash Equivalents

12 Months Ended

Dec. 31, 2019

Cash And Cash Equivalents [Abstract]

Cash and Cash Equivalents

7. CASH AND CASH EQUIVALENTS

	December 31
	2018		2019
	NT$		NT$
	(In Millions)
Cash
Cash on hand	$	463	$	353
Bank deposits		10,575		9,433
		11,038		9,786
Cash equivalents (investments with maturities of less    than three months)
Commercial paper	$	6,144	$	20,110
Negotiable certificates of deposit		7,600		1,700
Time deposits		2,863		2,451
Repurchase agreements collateralized by bonds		—		3
		16,607		24,264
	$	27,645	$	34,050

The annual yield rates of bank deposits, commercial paper, negotiable certificates of deposit, time deposits and repurchase agreements collateralized by bonds as of balance sheet dates were as follows:

	December 31
	2018	2019
Bank deposits	0.00%-0.50%	0.00%-0.74%
Commercial paper	0.47%-0.57%	0.47%-0.54%
Negotiable certificate of deposit	0.55%-0.60%	0.58%-0.60%
Time deposits	0.09%-4.40%	0.09%-4.40%
Repurchase agreements collateralized by bonds	-	1.90%