XML 120 R108.htm IDEA: XBRL DOCUMENT v3.23.1
Other Financial Assets and Liabilities - Summary of Valuation Gains and Losses on Derivatives Contracts (Detail) - KRW (₩)
₩ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disclosure of detailed information about financial instruments [line items]      
Valuation gain ₩ 154,674 ₩ 203,961 ₩ 0
Valuation loss 21,213 7,206 163,710
Other comprehensive income 85,201 191,570 (113,742)
Interest rate swap [member]      
Disclosure of detailed information about financial instruments [line items]      
Valuation gain 63 0 0
Valuation loss 490 0 0
Other comprehensive income 4,666 1 (567)
Currency swap [member]      
Disclosure of detailed information about financial instruments [line items]      
Valuation gain 154,611 203,961 0
Valuation loss 20,723 7,206 161,661
Other comprehensive income 79,781 191,569 (113,175)
Currency forwards [member]      
Disclosure of detailed information about financial instruments [line items]      
Valuation gain 0 0 0
Valuation loss 0 0 2,049
Other comprehensive income ₩ 754 ₩ 0 ₩ 0