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Accumulated Other Comprehensive Income and Other Components of Equity - Summary of Accumulated Other Comprehensive Income (Detail) - KRW (₩)
₩ in Millions
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Total accumulated other comprehensive income ₩ (77,776) ₩ 117,469 ₩ 86,051
Changes in investments in associates and joint ventures [member]      
Total accumulated other comprehensive income (11,752) (3,461) 16,257
Gain (loss) on derivatives valuation [member]      
Total accumulated other comprehensive income (7,109) 25,031 19,809
Gain (loss) on valuation of financial assets at fair value through other comprehensive income [member]      
Total accumulated other comprehensive income (52,100) 108,685 61,438
Exchange differences on translation for foreign operations [member]      
Total accumulated other comprehensive income ₩ (6,815) ₩ (12,786) ₩ (11,453)