XML 264 R249.htm IDEA: XBRL DOCUMENT

Risk Management - Summary of Sensitivity Analysis for Electricity Rates (Details) - KRW (₩)
₩ in Millions

12 Months Ended

Dec. 31, 2022

Dec. 31, 2021

Increase (decrease) of profit before income tax

Disclosure of Sensitivity analysis for electricity rates [Line Items]

1% Increase

₩ 661,990

₩ 573,086

1% Decrease

(661,990)

(573,086)

Increase (decrease) of shareholder's equity

Disclosure of Sensitivity analysis for electricity rates [Line Items]

1% Increase

^[1]

661,990

573,086

1% Decrease

^[1]

₩ (661,990)

₩ (573,086)

[1]	The effect on the equity excluding the impact of income taxes.