Leases - (Tables)

12 Months Ended

Dec. 31, 2025

Disclosure of quantitative information about right-of-use assets [line items]

Schedule Of Changes in Right-of-Use Assets

Changes in right-of-use assets for the years ended December 31, 2024 and 2025 are as follows:

		2024
(In millions of won)		Buildings and structures			Land			Machinery and equipment			Vehicles			Others			Total
At January 1	W		57,946			51,249			714			7,439			1,898			119,246
Acquisitions			24,008			1			2,658			7,044			154			33,865
Depreciation			(56,080	)		(3,063	)		(1,645	)		(6,879	)		(778	)		(68,445	)
Gain or loss on foreign    currency translation			13,877			8,410			23			456			292			23,058
Classified as held for sale			(11,599	)		(5,585	)		—			(1,563	)		(44	)		(18,791	)
At December 31	W		28,152			51,012			1,750			6,497			1,522			88,933

		2025
(In millions of won)		Buildings and structures			Land			Machinery and equipment			Vehicles			Others			Total
At January 1	W		28,152			51,012			1,750			6,497			1,522			88,933
Acquisitions			54,542			75			954			4,100			126			59,797
Depreciation			(44,366	)		(2,479	)		(2,024	)		(5,234	)		(698	)		(54,801	)
Gain or loss on foreign    currency translation			1,295			3,697			32			303			492			5,819
At December 31	W		39,623			52,305			712			5,666			1,442			99,748

Disclosure of lease related income and expenses

(ii)Amounts recognized in profit or loss from leases other than leases recorded as right-of-use assets for the years ended December 31, 2023, 2024 and 2025 are as follows:

(In millions of won)		2023			2024			2025
Interest on lease liabilities	W		(3,343	)		(2,874	)		(2,394	)
Income from sub-leasing right-of-use assets			276			182			266
Expenses relating to short-term leases			(241	)		(274	)		(208	)
Expenses relating to leases of low-value assets that are not    short-term leases			(942	)		(543	)		(436	)

Schedule of lease liabilities

(iii)Changes in lease liabilities for the years ended December 31, 2024 and 2025 are as follows:

(In millions of won)		2024			2025
At January 1	W		73,364			57,975
Additions and others			55,619			54,605
Interest expense			2,874			2,394
Repayment of liabilities			(73,882	)		(55,296	)
At December 31	W		57,975			59,678

Schedule Of Maturity Analysis Of Leases Receivable

The following table sets out a maturity analysis of lease receivables, showing the undiscounted lease payments to be received after the reporting date.

(In millions of won)		December 31, 2024			December 31, 2025
6 months or less	W		3,255			3,703
6-12 months			3,255			946
1-2 years			3,797			787
2-5 years			—			2,291
Total undiscounted lease payments	W		10,307			7,727
Unearned finance income			(244	)		(321	)
Net Investment in the lease	W		10,063			7,406