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Employment Benefits (Tables)

12 Months Ended

Dec. 31, 2024

Disclosure of information about defined benefit plans [abstract]

Summary of Employment Benefits

(1) Employment benefit obligations as of December 31, 2023 and 2024 are as follows:

						2023				2024
						In millions of won
Net defined benefit asset		￦					70,187				40,425
Net defined benefit obligations							1,033,409				1,449,837
Other long-term employee benefit obligations							1,911				1,710

Summary of Principal Assumptions on Actuarial Valuation

(2) Principal assumptions used for actuarial valuation as of December 31, 2023 and 2024 are as follows:

		2023		2024
Discount rate		4.06%~5.44%		3.38%~5.06%
Future salary and benefit levels		4.82%		4.83%
Weighted average duration		9.52 years		9.89 years

Summary of Expense Relating to defined Benefit Plans

(3) Details of expense relating to defined benefit plans for the years ended December 31, 2022, 2023 and 2024 are as follows:

						2022				2023				2024
						In millions of won
Current service cost		￦					496,722				373,802				430,308
Interest cost							116,256				190,257				184,169
Expected return on plan assets							(73,484	)			(163,074	)			(141,108	)
Past service cost							125				—				—
		￦					539,619				400,985				473,369

Expenses described above are recognized in those items below in the consolidated financial statements.

						2022				2023				2024
						In millions of won
Cost of sales		￦					404,243				285,209				340,165
Selling and administrative expenses							81,457				73,521				87,815
Others (Construction-in-progress and others)							53,919				42,255				45,389
		￦					539,619				400,985				473,369

Summary of Defined Benefits

(4) Details of defined benefit obligations as of December 31, 2023 and 2024 are as follows:

						2023				2024
						In millions of won
Present value of defined benefit obligation from funded plans		￦					4,312,702				4,960,645
Fair value of plan assets							(3,349,480	)			(3,551,233	)
Net liabilities incurred from defined benefit plans		￦					963,222				1,409,412

Summary of Changes in the Present Value of Defined Benefits

(5) Changes in the present value of defined benefit obligations for the years ended December 31, 2023 and 2024 are as follows:

						2023				2024
						In millions of won
Beginning balance		￦					3,776,715				4,312,702
Current service cost							373,802				430,308
Interest cost							190,257				184,169
Remeasurement component							409,635				425,671
Past service cost							—				—
Actual payments							(437,734	)			(392,336	)
Others							27				131
Ending balance		￦					4,312,702				4,960,645

Summary of Changes in the Fair Value of Plan Assets

(6) Changes in the fair value of plan assets for the years ended December 31, 2023 and 2024 are as follows:

						2023				2024
						In millions of won
Beginning balance		￦					3,149,414				3,349,480
Expected return							163,074				141,108
Remeasurement component							4,777				(10,030	)
Contributions by the employers							188,566				254,763
Actual payments							(156,351	)			(184,088	)
Ending balance		￦					3,349,480				3,551,233

Summary of the Fair Value of Plan Assets

(7) Details of the fair value of plan assets as of December 31, 2023 and 2024 are as follows:

						2023				2024
						In millions of won
Equity instruments		￦					5,326				2,308
Debt instruments							697,907				413,522
Bank deposits							611,821				452,158
Others(*)							2,034,426				2,683,245
		￦				3,349,480				3,551,233

(*) ‘Others’ consist of various financial assets managed by external asset management companies.

Summary of Remeasurement Components Recognized in Other Comprehensive Income (loss)

(8) Remeasurement components recognized in other comprehensive income (loss) for the years ended December 31, 2023 and 2024 are as follows:

						2023				2024
						In millions of won
Actuarial gain from changes in financial assumptions		￦					429,810				320,582
Experience adjustments, etc.							(20,175	)			105,089
Expected return							(4,777	)			10,030
		￦				404,858				435,701

X

- Definition

The disclosure of defined benefit plans. [Refer: Defined benefit plans [domain]]

+ References

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The disclosure of the fair value of defined benefit plan assets. [Refer: Plan assets [member]; Defined benefit plans [domain]]

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