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Significant Basis Of Preparation And Accounting Policies_Estimated economic useful lives for premises and equipment except for land (Details) | 12 Months Ended
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Dec. 31, 2020
Buildings |
Disclosure of useful life of property plant and equipment [Line Items] |
Useful lives (years) | 8 ~ 40
Structures |
Disclosure of useful life of property plant and equipment [Line Items] |
Useful lives (years) | 5 ~ 50
Machinery |
Disclosure of useful life of property plant and equipment [Line Items] |
Useful lives (years) | 2 ~ 32
Vehicles |
Disclosure of useful life of property plant and equipment [Line Items] |
Useful lives (years) | 3 ~ 8
Loaded heavy water |
Disclosure of useful life of property plant and equipment [Line Items] |
Useful lives (years) | 30
Asset retirement costs |
Disclosure of useful life of property plant and equipment [Line Items] |
Useful lives (years) | 18, 30, 40, 60
Right-of-use assets |
Disclosure of useful life of property plant and equipment [Line Items] |
Useful lives (years) | 1 ~ 65
Ships |
Disclosure of useful life of property plant and equipment [Line Items] |
Useful lives (years) | 9
Others |
Disclosure of useful life of property plant and equipment [Line Items] |
Useful lives (years) | 4 ~ 15

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- Definition Description of useful life 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 2020-01-01 -Paragraph 73 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2020-en-r&anchor=para_73_c&doctype=Standard -URIDate 2020-01-01 + Details
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- References No definition available. + Details
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- Details
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- Details
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