XML 104 R91.htm IDEA: XBRL DOCUMENT
v3.19.1

Summary of Significant Accounting Policies - Detail Information of Subsidiaries (Detail) | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
TSMC North America [member] |  |
Disclosure of subsidiaries [line items] |  |
Main Businesses and Products | Selling and marketing of integrated circuits and other semiconductor devices |
Establishment and Operating Location | San Jose, California, U.S.A. |
Percentage of Ownership | 100.00% | 100.00%
TSMC Japan Limited [member] |  |
Disclosure of subsidiaries [line items] |  |
Main Businesses and Products | Customer service and supporting activities |
Establishment and Operating Location | Yokohama, Japan |
Percentage of Ownership | 100.00% | 100.00%
TSMC Partners, Ltd [member] |  |
Disclosure of subsidiaries [line items] |  |
Main Businesses and Products | Investing in companies involved in the design, manufacture, and other related business in the semiconductor industry and other investment activities |
Establishment and Operating Location | Tortola, British Virgin Islands |
Percentage of Ownership | 100.00% | 100.00%
TSMC Korea Limited [member] |  |
Disclosure of subsidiaries [line items] |  |
Main Businesses and Products | Customer service and supporting activities |
Establishment and Operating Location | Seoul, Korea |
Percentage of Ownership | 100.00% | 100.00%
TSMC Europe BV [member] |  |
Disclosure of subsidiaries [line items] |  |
Main Businesses and Products | Customer service and supporting activities |
Establishment and Operating Location | Amsterdam, the Netherlands |
Percentage of Ownership | 100.00% | 100.00%
TSMC Global, Ltd [member] |  |
Disclosure of subsidiaries [line items] |  |
Main Businesses and Products | Investment activities |
Establishment and Operating Location | Tortola, British Virgin Islands |
Percentage of Ownership | 100.00% | 100.00%
TSMC China Company Limited [member] |  |
Disclosure of subsidiaries [line items] |  |
Main Businesses and Products | Manufacturing, selling, testing and computer-aided design of integrated circuits and other semiconductor devices |
Establishment and Operating Location | Shanghai, China |
Percentage of Ownership | 100.00% | 100.00%
TSMC Nanjing Company Limited [member] |  |
Disclosure of subsidiaries [line items] |  |
Main Businesses and Products | Manufacturing, selling, testing and computer-aided design of integrated circuits and other semiconductor devices |
Establishment and Operating Location | Nanjing, China |
Percentage of Ownership | 100.00% | 100.00%
VentureTech Alliance Fund III, L.P [member] |  |
Disclosure of subsidiaries [line items] |  |
Main Businesses and Products | Investing in new start-uptechnology companies |
Establishment and Operating Location | Cayman Islands |
Percentage of Ownership | 98.00% | 98.00%
VentureTech Alliance Fund II, L.P [member] |  |
Disclosure of subsidiaries [line items] |  |
Main Businesses and Products | Investing in new start-uptechnology companies |
Establishment and Operating Location | Cayman Islands |
Percentage of Ownership | 98.00% | 98.00%
TSMC Solar Europe GmbH [member] |  |
Disclosure of subsidiaries [line items] |  |
Main Businesses and Products | Selling of solar related products and providing customer service |
Establishment and Operating Location | Hamburg, Germany |
Percentage of Ownership | 100.00% | 100.00%
VisEra Technologies Company Ltd [member] |  |
Disclosure of subsidiaries [line items] |  |
Main Businesses and Products | Engaged in manufacturing electronic spare parts and in researching, developing, designing, manufacturing, selling, packaging and testing of color filter |
Establishment and Operating Location | Hsin-Chu, Taiwan |
Percentage of Ownership | 87.00% | 87.00%
TSMC Design Technology Canada Inc [member] |  |
Disclosure of subsidiaries [line items] |  |
Main Businesses and Products | Engineering support activities |
Establishment and Operating Location | Ontario, Canada |
Percentage of Ownership | 100.00% | 100.00%
TSMC Technology, Inc [member] |  |
Disclosure of subsidiaries [line items] |  |
Main Businesses and Products | Engineering support activities |
Establishment and Operating Location | Delaware, U.S.A. |
Percentage of Ownership | 100.00% | 100.00%
TSMC Development, Inc [member] |  |
Disclosure of subsidiaries [line items] |  |
Main Businesses and Products | Investing in companies involved in the manufacturing related business in the semiconductor industry |
Establishment and Operating Location | Delaware, U.S.A. |
Percentage of Ownership | 100.00% | 100.00%
InveStar Semiconductor Development Fund, Inc. [member] |  |
Disclosure of subsidiaries [line items] |  |
Main Businesses and Products | Investing in new start-uptechnology companies |
Establishment and Operating Location | Cayman Islands |
Percentage of Ownership | 97.00% | 97.00%
InveStar Semiconductor Development Fund, Inc. (II) LDC [member] |  |
Disclosure of subsidiaries [line items] |  |
Main Businesses and Products | Investing in new start-uptechnology companies |
Establishment and Operating Location | Cayman Islands |
Percentage of Ownership | 97.00% | 97.00%
WaferTech, LLC [member] |  |
Disclosure of subsidiaries [line items] |  |
Main Businesses and Products | Manufacturing, selling and testing of integrated circuits and other semiconductor devices |
Establishment and Operating Location | Washington, U.S.A. |
Percentage of Ownership | 100.00% | 100.00%
Growth Fund Limited [member] |  |
Disclosure of subsidiaries [line items] |  |
Main Businesses and Products | Investing in new start-uptechnology companies |
Establishment and Operating Location | Cayman Islands |
Percentage of Ownership | 100.00% | 100.00%

X
- Definition The description of the nature of the entity's operations and principal activities. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 138 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_138_b&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The principal place of business of a subsidiary. [Refer: Principal place of business; Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2018-01-01 -Paragraph 16 -Subparagraph b -Clause ii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=27&date=2018-03-01&anchor=para_16_b_ii&doctype=Standard -URIDate 2018-03-16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2018-01-01 -Paragraph 17 -Subparagraph b -Clause ii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=27&date=2018-03-01&anchor=para_17_b_ii&doctype=Standard -URIDate 2018-03-16 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2018-01-01 -Paragraph 12 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2018-03-01&anchor=para_12_b&doctype=Standard -URIDate 2018-03-16 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2018-01-01 -Paragraph 19B -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2018-03-01&anchor=para_19B_b&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_PrincipalPlaceOfBusinessOfSubsidiary
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2018-01-01 -Paragraph 17 -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=27&date=2018-03-01&anchor=para_17_b_iii&doctype=Standard -URIDate 2018-03-16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2018-01-01 -Paragraph 16 -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=27&date=2018-03-01&anchor=para_16_b_iii&doctype=Standard -URIDate 2018-03-16 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2018-01-01 -Paragraph 19B -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2018-03-01&anchor=para_19B_c&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_ProportionOfOwnershipInterestInSubsidiary
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tsm_TSMCNorthAmericaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tsm_TSMCJapanLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tsm_TSMCPartnersLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tsm_TSMCKoreaLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tsm_TSMCEuropeBVMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tsm_TSMCGlobalLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tsm_TSMCChinaCompanyLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tsm_TSMCNanjingCompanyLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tsm_VenturetechAllianceFundThreeLPMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tsm_VenturetechAllianceFundTwoLPMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tsm_TSMCSolarEuropeGmbhMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tsm_ViseraTechnologiesCompanyLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tsm_TSMCDesignTechnologyCanadaIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tsm_TSMCTechnologyIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tsm_TSMCDevelopmentIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tsm_InveStarSemiconductorDevelopmentFundIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tsm_InveStarSemiConductorDevelopmentFundIncTwoLdcMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tsm_WafertechLLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=tsm_GrowthFundLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |