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Other Assets (Tables)
 12 Months Ended
Dec. 31, 2018
Miscellaneous Assets [Abstract]  
Summary of Other Assets

 

 

December 31

 

 

 

2017

 

 

2018

 

 

 

NT$

 

 

NT$

 

 

 

(In Millions)

 

Spare parts

 

$

2,059

 

 

$

2,422

 

Refundable deposits

 

 

1,860

 

 

 

1,992

 

Other financial assets

 

 

1,000

 

 

 

1,000

 

Others

 

 

2,800

 

 

 

2,342

 

 

 

$

7,719

 

 

$

7,756

 

Current

 

 

 

 

 

 

 

 

Spare parts

 

$

2,059

 

 

$

2,422

 

Others

 

 

124

 

 

 

154

 

 

 

$

2,183

 

 

$

2,576

 

Noncurrent

 

 

 

 

 

 

 

 

Refundable deposits

 

$

1,860

 

 

$

1,992

 

Other financial assets

 

 

1,000

 

 

 

1,000

 

Others

 

 

2,676

 

 

 

2,188

 

 

 

$

5,536

 

 

$

5,180