XML 90 R80.htm IDEA: XBRL DOCUMENT v3.26.1

Research and Development Expenditures Recognized as Expenses (Tables)

12 Months Ended

Dec. 31, 2025

TextBlock 1 [Abstract]

Summary of Research and Development Expenditures Recognized as Expenses

Research and development expenditures recognized as expenses for the years ended December 31, 2023, 2024 and 2025 were as follows:

(in millions of Won)		2023				2024				2025
Administrative expenses		￦	175,167				207,557				195,255
Cost of sales			343,242				348,003				331,924
		￦	518,409				555,560				527,179

X

- Definition

Disclosure of detailed information of research and development expense.

+ References

No definition available.

+ Details

Name:	pkx_DisclosureOfDetailedInformationOfResearchAndDevelopmentExpenseExplanatory
Namespace Prefix:	pkx_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

TextBlock 1.

+ References

No definition available.

+ Details

Name:	pkx_Textblock1Abstract
Namespace Prefix:	pkx_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration