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Related Party Transactions - Additional Information (Detail) - KRW (₩) ₩ in Millions	Dec. 31, 2022	Dec. 31, 2021
IBK KT Emerging Digital Industry Investment Fund [Member]
Disclosure of transactions between related parties [line items]
Investment in related party	₩ 53,120
K Bank Inc. [Member]
Disclosure of transactions between related parties [line items]
Credit card contract threshold limit	₩ 1,000	₩ 1,000

X

- 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.

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No definition available.

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- Definition

Credit card contract threshold limit.

+ References

No definition available.

+ Details

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X

- Definition

Investment in related party.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

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- Details

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