Financial Liabilities at Fair Value Through Profit or Loss - Summary of Difference Between Carrying Amount And Contractually Required to Pay at Maturity Of Financial Liabilities Designated At Fair Value Through Profit Or Loss Explanatory (Details) $ in Thousands, ₩ in Millions	Dec. 31, 2023 KRW (₩)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 KRW (₩)		Jan. 01, 2022 KRW (₩)	[1]
Disclosure of financial liabilities [line items]
Carrying amount	₩ 10,920,435	$ 8,459,093	₩ 12,271,604	[1]	₩ 12,088,980
Financial liabilities designated at fair value through profit or loss
Disclosure of financial liabilities [line items]
Amount contractually required to pay at maturity	7,871,014		9,973,340
Carrying amount	7,966,963		10,078,394
Difference	₩ (95,949)		₩ (105,054)

[1] From January 1, 2023, we adopted IFRS No.17 ‘Insurance Contracts’, which replaced IFRS No.4 ‘Insurance Contracts’. We have restated 2022 comparative date.