XML 77 R166.htm IDEA: XBRL DOCUMENT v3.20.1
Accumulated Other Comprehensive Income and Other Components of Equity - Summary of Other Components of Equity (Parenthetical) (Detail) - KRW (₩)
₩ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Miscellaneous equity [abstract]    
Number Of treasury shares reissued 96,782  
Treasury shares, Amount directly reflected in equity ₩ 603 ₩ 5,410