XML 126 R108.htm IDEA: XBRL DOCUMENT
v3.22.1

Property, Plant and Equipment - Summary of Property, Plant and Equipment Depreciated Useful Lives (Detail) - Buildings and improvements [member] | 12 Months Ended
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Dec. 31, 2021
Bottom of range [member] | Main plant buildings [Member] |
Disclosure of detailed information about property, plant and equipment [Line Items] |
Property, plant and equipment useful lives | 10
Bottom of range [member] | Cleanrooms [Member] |
Disclosure of detailed information about property, plant and equipment [Line Items] |
Property, plant and equipment useful lives | 10
Bottom of range [member] | Others [Member] |
Disclosure of detailed information about property, plant and equipment [Line Items] |
Property, plant and equipment useful lives | 3
Bottom of range [member] | Machinery and equipment1 [member] |
Disclosure of detailed information about property, plant and equipment [Line Items] |
Property, plant and equipment useful lives | 2
Bottom of range [member] | Other equipment [member] |
Disclosure of detailed information about property, plant and equipment [Line Items] |
Property, plant and equipment useful lives | 2
Top of range [member] | Main plant buildings [Member] |
Disclosure of detailed information about property, plant and equipment [Line Items] |
Property, plant and equipment useful lives | 55
Top of range [member] | Cleanrooms [Member] |
Disclosure of detailed information about property, plant and equipment [Line Items] |
Property, plant and equipment useful lives | 20
Top of range [member] | Others [Member] |
Disclosure of detailed information about property, plant and equipment [Line Items] |
Property, plant and equipment useful lives | 20
Top of range [member] | Machinery and equipment1 [member] |
Disclosure of detailed information about property, plant and equipment [Line Items] |
Property, plant and equipment useful lives | 10
Top of range [member] | Other equipment [member] |
Disclosure of detailed information about property, plant and equipment [Line Items] |
Property, plant and equipment useful lives | 20

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- Definition The depreciation method used for property, plant and equipment. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2021-01-01 -Paragraph 73 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2021-en-r&anchor=para_73_b&doctype=Standard -URIDate 2021-03-24 + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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- Details
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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=asx_OtherEquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
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