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Financial Assets at Fair Value Through Profit or Loss - Summary of Financial Assets at Fair Value Through Profit or Loss (Details) - KRW (₩) ₩ in Millions | Dec. 31, 2021 | Dec. 31, 2020
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Financial Assets At Fair Value Through Profit Or Loss [Line Items] |  |  |
Current financial assets at fair value through profit or loss |  | ₩ 360,833 | ₩ 1,196,101
Non-current financial assets at fair value through profit or loss |  | 672,031 | 685,281
Financial assets at fair value through profit or loss |  |  |
Financial Assets At Fair Value Through Profit Or Loss [Line Items] |  |  |
Current financial assets at fair value through profit or loss |  | 360,833 | 1,196,101
Non-current financial assets at fair value through profit or loss |  | 413,960 | 473,215
Financial assets at fair value through profit or loss | Beneficiary securities |  |  |
Financial Assets At Fair Value Through Profit Or Loss [Line Items] |  |  |
Current financial assets at fair value through profit or loss |  | 629 | 1,313
Non-current financial assets at fair value through profit or loss |  | 206,160 | 155,122
Financial assets at fair value through profit or loss | Cooperative securities |  |  |
Financial Assets At Fair Value Through Profit Or Loss [Line Items] |  |  |
Current financial assets at fair value through profit or loss |  | 0 | 0
Non-current financial assets at fair value through profit or loss |  | 5,797 | 5,692
Financial assets at fair value through profit or loss | Other |  |  |
Financial Assets At Fair Value Through Profit Or Loss [Line Items] |  |  |
Current financial assets at fair value through profit or loss | [1] | 360,204 | 1,194,788
Non-current financial assets at fair value through profit or loss | [1] | 202,003 | 312,401
Financial assets designated as at fair value through profit or loss | Debt with embedded derivatives |  |  |
Financial Assets At Fair Value Through Profit Or Loss [Line Items] |  |  |
Current financial assets at fair value through profit or loss |  | 0 | 0
Non-current financial assets at fair value through profit or loss |  | ₩ 258,071 | ₩ 212,066
[1] | ‘Other’ includes MMT, etc.

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