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Share-based payments - Summary of fair value performance shares (Details) ₩ in Millions | Dec. 31, 2025 KRW (₩) | [1]
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Vested at December 31, 2021 |
Fair value performance shares [Line Items] |
Fair value per share | ₩ 37,387
Vested at December 31, 2022 |
Fair value performance shares [Line Items] |
Fair value per share | 37,081
Vested at December 31, 2023 |
Fair value performance shares [Line Items] |
Fair value per share | 38,156
Vested at December 31, 2024 |
Fair value performance shares [Line Items] |
Fair value per share | 50,444
Vested at December 31, 2025 |
Fair value performance shares [Line Items] |
Fair value per share | 77,757
Not Expired performance shares |
Fair value performance shares [Line Items] |
Fair value per share | ₩ 76,900
[1] | Based on performance-based stock compensation, the reference stock price (the arithmetic average of the weighted average share price of transaction volume for the past two months, the past one month, and the past one week from the day before the base date) of four years after the commencement of the grant year is paid in cash, and the fair value of the reference stock price to be paid in the future is assessed as the closing price of the settlement.

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- Definition The weighted average fair value of share options granted during the period at the measurement date. [Refer: Weighted average [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2025-01-01 -Paragraph 47 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2025-en-r&anchor=para_47_a&doctype=Standard -URIDate 2025-03-27 + Details
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