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Interests in Unconsolidated Structured Entities - Summary of Unconsolidated Structured Entities and Nature of Risks (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2018 | Dec. 31, 2017 | Jan. 01, 2017
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Disclosure of unconsolidated structured entities [line items] |  |  |
Other financial assets | ₩ 1,617,956 | ₩ 1,727,623 |
Joint ventures and associates | 272,407 | 279,431 | ₩ 284,075
Real Estate Finance [member] |  |  |
Disclosure of unconsolidated structured entities [line items] |  |  |
Total assets of unconsolidated structured entities | 1,429,910 | 1,426,620 |
Other financial assets | 24,421 | 21,800 |
Joint ventures and associates | 7,293 | 10,168 |
Total | 31,714 | 31,968 |
Maximum loss exposure Investment assets | 31,714 | 31,968 |
PEF &Investment Fund [member] |  |  |
Disclosure of unconsolidated structured entities [line items] |  |  |
Total assets of unconsolidated structured entities | 3,701,718 | 3,779,377 |
Other financial assets | 94,075 | 52,666 |
Joint ventures and associates | 166,159 | 164,030 |
Total | 260,234 | 216,696 |
Maximum loss exposure Investment assets | 260,234 | 216,696 |
Asset Securitization [member] |  |  |
Disclosure of unconsolidated structured entities [line items] |  |  |
Total assets of unconsolidated structured entities | 2,751,208 | 2,619,445 |
Unconsolidated structured entities [member] |  |  |
Disclosure of unconsolidated structured entities [line items] |  |  |
Total assets of unconsolidated structured entities | 7,882,836 | 7,825,442 |
Other financial assets | 118,496 | 74,466 |
Joint ventures and associates | 173,452 | 174,198 |
Total | 291,948 | 248,664 |
Maximum loss exposure Investment assets | ₩ 291,948 | ₩ 248,664 |

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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 2018-01-01 -Paragraph 29 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2018-03-01&anchor=para_29_a&doctype=Standard -URIDate 2018-03-16 + 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 2018-01-01 -Paragraph 24 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=8&date=2018-03-01&anchor=para_24_a&doctype=Standard -URIDate 2018-03-16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2018-01-01 -Paragraph B16 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2018-03-01&anchor=para_B16&doctype=Appendix&seq=2 -URIDate 2018-03-16 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 54 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_54_e&doctype=Standard -URIDate 2018-03-16 + Details
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