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Leases - Summary of Lease Liabilities (Details) - KRW (₩) ₩ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Gross lease liabilities	₩ 4,235,100	₩ 4,612,352
Less: Discount	(427,220)	(449,209)
Present value of lease payment	3,807,880	4,163,143	₩ 4,410,503
Less than 1 year
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Gross lease liabilities	641,525	639,756
1~5 Years
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Gross lease liabilities	1,898,846	2,047,584
More than 5 years
Disclosure of maturity analysis for non-derivative financial liabilities [line items]
Gross lease liabilities	₩ 1,694,729	₩ 1,925,012

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- 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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- Definition

The amount of contractual undiscounted cash flows in relation to lease liabilities before deducting finance charges. [Refer: Lease liabilities]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-IssueDate 2023-01-01
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- Definition

The amount of liabilities related to the entity's leases. Lease is a contract, or part of a contract, that conveys the right to use an underlying asset for a period of time in exchange for consideration.

+ References

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- Definition

Discount lease payments to be received.

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