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Interests in Unconsolidated Structured Entities - Summary of Unconsolidated Structured Entities and Nature of Risks (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019
Disclosure of unconsolidated structured entities [line items] |  |
Other financial assets | ₩ 1,747,187 | ₩ 1,690,046
Joint ventures and associates | 557,881 | 267,660
Real Estate Finance [member] |  |
Disclosure of unconsolidated structured entities [line items] |  |
Total assets of unconsolidated structured entities | 2,004,869 | 1,595,895
Other financial assets | 29,874 | 15,816
Joint ventures and associates | 51,607 | 8,542
Total | 81,481 | 24,358
Maximum loss exposure Investment assets | 81,481 | 24,358
PEF &Investment Fund [member] |  |
Disclosure of unconsolidated structured entities [line items] |  |
Total assets of unconsolidated structured entities | 4,380,534 | 4,060,992
Other financial assets | 128,332 | 100,496
Joint ventures and associates | 219,753 | 192,022
Total | 348,085 | 292,518
Maximum loss exposure Investment assets | 348,085 | 292,518
Cash deficiency support | 29,130 |
Asset Securitization [member] |  |
Disclosure of unconsolidated structured entities [line items] |  |
Total assets of unconsolidated structured entities | 2,152,412 | 2,562,931
Unconsolidated structured entities [member] |  |
Disclosure of unconsolidated structured entities [line items] |  |
Total assets of unconsolidated structured entities | 8,537,815 | 8,219,818
Other financial assets | 158,206 | 116,312
Joint ventures and associates | 271,360 | 200,564
Total | 429,566 | 316,876
Maximum loss exposure Investment assets | 429,566 | ₩ 316,876
Cash deficiency support | ₩ 29,130 |

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- Definition The amount of assets recognised in the entity's financial statements relating to its interests in structured entities. [Refer: Assets; Unconsolidated structured entities [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2020-01-01 -Paragraph 29 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2020-en-r&anchor=para_29_a&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount of investments accounted for using the equity method. The equity method is a method of accounting whereby the investment is initially recognised at cost and adjusted thereafter for the post-acquisition change in the investor's share of net assets of the investee. The investor's profit or loss includes its share of the profit or loss of the investee. The investor's other comprehensive income includes its share of the other comprehensive income of the investee. [Refer: At cost [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2020-01-01 -Paragraph 24 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2020-en-r&anchor=para_24_a&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2020-01-01 -Paragraph B16 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2020-en-r&anchor=para_B16&doctype=Appendix&subtype=B -URIDate 2020-01-01 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 54 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_54_e&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount that best represents the entity's maximum exposure to loss from its interests in structured entities. [Refer: Unconsolidated structured entities [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2020-01-01 -Paragraph 29 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2020-en-r&anchor=para_29_c&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount of financial assets that the entity does not separately disclose in the same statement or note. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 54 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_54_d&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount of risk exposure associated with financial instruments with a shared characteristic that identifies a concentration of risks. [Refer: Financial instruments, class [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2020-01-01 -Paragraph B8 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_B8_c&doctype=Appendix&subtype=B -URIDate 2020-01-01 + Details
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