XML 188 R152.htm IDEA: XBRL DOCUMENT v3.20.1
Income and expenses on investment property (Details) - KRW (₩)
₩ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Income and expenses on investment property [Abstract]    
Rental income ₩ 9,782 ₩ 9,494
Operating and maintenance expenses related to rental income (1,257) (923)
Operating and maintenance expenses not related to rental income (3,812) 0
Rental income from investment property, net of direct operating expense ₩ 4,713 ₩ 8,571