XML 31 R13.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Cash and Cash Equivalents | 12 Months Ended
--- | ---
Dec. 31, 2017
Text block1 [abstract] |
Cash and Cash Equivalents |
7. | CASH AND CASH EQUIVALENTS
|  | December 31, 2016 |  |  | December 31, 2017 |
|  | NT$ |  |  | NT$ |
|  | (In Millions) |  |  | (In Millions) |
Cash and deposits in banks |  | $ | 536,895.3 |  |  | $ | 551,919.8 |
Agency bonds |  |  | — |  |  |  | 776.0 |
Commercial paper |  |  | 1,997.2 |  |  |  | 695.9 |
Repurchase agreements collateralized by corporate bonds |  |  | 2,361.3 |  |  |  | — |
|  | $ | 541,253.8 |  |  | $ | 553,391.7 |
Deposits in banks consisted of highly liquid time deposits that were readily convertible to known amounts of cash and were subject to an insignificant risk of changes in value.

X
- Definition The disclosure of cash and cash equivalents. [Refer: Cash and cash equivalents] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 10 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_10_e&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_DisclosureOfCashAndCashEquivalentsExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Text block1 [abstract] + References No definition available. + Details
Name: | tsm_TextBlock1Abstract
Namespace Prefix: | tsm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration