XML 216 R200.htm IDEA: XBRL DOCUMENT v3.21.1
Deferred tax expenses by origination and reversal of deferred assets and liabilities and temporary differences (Details) - KRW (₩)
₩ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Deferred tax expenses by origination and reversal of deferred assets and liabilities and temporary differences [Line Items]    
Beginning balance ₩ (7,126,946) ₩ (8,383,548)
Amounts recognized in profit or loss (291,641) 1,351,632
Amount recognized in other comprehensive income (loss) 47,213 (56,733)
Amounts recognized directly in equity 4,273 3,432
Others [1] 0 (41,729)
Ending balance (7,367,101) (7,126,946)
Deferred income tax on temporary differences    
Deferred tax expenses by origination and reversal of deferred assets and liabilities and temporary differences [Line Items]    
Beginning balance (8,382,980) (8,992,509)
Amounts recognized in profit or loss (69,278) 704,559
Amount recognized in other comprehensive income (loss) 47,213 (56,733)
Amounts recognized directly in equity 4,273 3,432
Others [1] 0 (41,729)
Ending balance (8,400,772) (8,382,980)
Employee benefits    
Deferred tax expenses by origination and reversal of deferred assets and liabilities and temporary differences [Line Items]    
Beginning balance 648,847 594,541
Amounts recognized in profit or loss 14,566 94,541
Amount recognized in other comprehensive income (loss) 26,374 (40,235)
Amounts recognized directly in equity 0 0
Others [1] 0 0
Ending balance 689,787 648,847
Cash flow hedges    
Deferred tax expenses by origination and reversal of deferred assets and liabilities and temporary differences [Line Items]    
Beginning balance (999) 39,461
Amounts recognized in profit or loss 63,817 (23,977)
Amount recognized in other comprehensive income (loss) (47,231) (15,642)
Amounts recognized directly in equity 0 (841)
Others [1] 0 0
Ending balance 15,587 (999)
Investments in associates and subsidiaries    
Deferred tax expenses by origination and reversal of deferred assets and liabilities and temporary differences [Line Items]    
Beginning balance (8,665,727) (8,666,871)
Amounts recognized in profit or loss (38,002) (3,131)
Amount recognized in other comprehensive income (loss) 35,714 4,275
Amounts recognized directly in equity 0 0
Others [1] 0 0
Ending balance (8,668,015) (8,665,727)
Property, Plant and Equipment    
Deferred tax expenses by origination and reversal of deferred assets and liabilities and temporary differences [Line Items]    
Beginning balance (7,115,218) (6,522,778)
Amounts recognized in profit or loss (598,231) (592,440)
Amount recognized in other comprehensive income (loss) 0 0
Amounts recognized directly in equity 0 0
Others [1] 0 0
Ending balance (7,713,449) (7,115,218)
Finance lease    
Deferred tax expenses by origination and reversal of deferred assets and liabilities and temporary differences [Line Items]    
Beginning balance (160,443) (453,074)
Amounts recognized in profit or loss (50,977) 292,631
Amount recognized in other comprehensive income (loss) 0 0
Amounts recognized directly in equity 0 0
Others [1] 0 0
Ending balance (211,420) (160,443)
Intangible Assets    
Deferred tax expenses by origination and reversal of deferred assets and liabilities and temporary differences [Line Items]    
Beginning balance (55,906) 6,055
Amounts recognized in profit or loss 24,740 (20,232)
Amount recognized in other comprehensive income (loss) 0 0
Amounts recognized directly in equity 0 0
Others [1] 0 (41,729)
Ending balance (31,166) (55,906)
Financial assets at fair value through profit or loss    
Deferred tax expenses by origination and reversal of deferred assets and liabilities and temporary differences [Line Items]    
Beginning balance 341 19
Amounts recognized in profit or loss (328) 322
Amount recognized in other comprehensive income (loss) 0 0
Amounts recognized directly in equity 0 0
Others [1] 0 0
Ending balance 13 341
Financial assets at fair value through other comprehensive income    
Deferred tax expenses by origination and reversal of deferred assets and liabilities and temporary differences [Line Items]    
Beginning balance 18,245 25,576
Amounts recognized in profit or loss 258 (3,114)
Amount recognized in other comprehensive income (loss) 19,447 (4,217)
Amounts recognized directly in equity 0 0
Others [1] 0 0
Ending balance 37,950 18,245
Deferred revenue    
Deferred tax expenses by origination and reversal of deferred assets and liabilities and temporary differences [Line Items]    
Beginning balance 213,003 219,742
Amounts recognized in profit or loss (13,302) (6,739)
Amount recognized in other comprehensive income (loss) 0 0
Amounts recognized directly in equity 0 0
Others [1] 0 0
Ending balance 199,701 213,003
Provisions    
Deferred tax expenses by origination and reversal of deferred assets and liabilities and temporary differences [Line Items]    
Beginning balance 5,456,919 4,800,946
Amounts recognized in profit or loss 459,884 655,973
Amount recognized in other comprehensive income (loss) 0 0
Amounts recognized directly in equity 0 0
Others [1] 0 0
Ending balance 5,916,803 5,456,919
Doubtful receivables    
Deferred tax expenses by origination and reversal of deferred assets and liabilities and temporary differences [Line Items]    
Beginning balance 59 59
Amounts recognized in profit or loss (59) 0
Amount recognized in other comprehensive income (loss) 0 0
Amounts recognized directly in equity 0 0
Others [1] 0 0
Ending balance 0 59
Other financial liabilities    
Deferred tax expenses by origination and reversal of deferred assets and liabilities and temporary differences [Line Items]    
Beginning balance 39,364 39,493
Amounts recognized in profit or loss (13,238) (4,402)
Amount recognized in other comprehensive income (loss) 0 0
Amounts recognized directly in equity 4,273 4,273
Others [1] 0 0
Ending balance 30,399 39,364
Gains or losses on foreign exchange translation    
Deferred tax expenses by origination and reversal of deferred assets and liabilities and temporary differences [Line Items]    
Beginning balance 57,961 27,080
Amounts recognized in profit or loss (69,596) 30,881
Amount recognized in other comprehensive income (loss) 0 0
Amounts recognized directly in equity 0 0
Others [1] 0 0
Ending balance (11,635) 57,961
Allowance for doubtful accounts    
Deferred tax expenses by origination and reversal of deferred assets and liabilities and temporary differences [Line Items]    
Beginning balance 57,607 58,756
Amounts recognized in profit or loss (1,478) (1,149)
Amount recognized in other comprehensive income (loss) 0 0
Amounts recognized directly in equity 0 0
Others [1] 0 0
Ending balance 56,129 57,607
Accrued income    
Deferred tax expenses by origination and reversal of deferred assets and liabilities and temporary differences [Line Items]    
Beginning balance (4,376) (2,914)
Amounts recognized in profit or loss 13,320 (1,462)
Amount recognized in other comprehensive income (loss) 0 0
Amounts recognized directly in equity 0 0
Others [1] 0 0
Ending balance 8,944 (4,376)
Special deduction for property, plant and equipment    
Deferred tax expenses by origination and reversal of deferred assets and liabilities and temporary differences [Line Items]    
Beginning balance (215,373) (211,746)
Amounts recognized in profit or loss (10,978) (3,627)
Amount recognized in other comprehensive income (loss) 0 0
Amounts recognized directly in equity 0 0
Others [1] 0 0
Ending balance (226,351) (215,373)
Others    
Deferred tax expenses by origination and reversal of deferred assets and liabilities and temporary differences [Line Items]    
Beginning balance 1,342,716 1,053,146
Amounts recognized in profit or loss 150,326 290,484
Amount recognized in other comprehensive income (loss) 12,909 (914)
Amounts recognized directly in equity 0 0
Others [1] 0 0
Ending balance 1,505,951 1,342,716
Deferred income tax on unused tax losses and tax credit    
Deferred tax expenses by origination and reversal of deferred assets and liabilities and temporary differences [Line Items]    
Beginning balance 1,256,034 608,961
Amounts recognized in profit or loss (222,363) 647,073
Amount recognized in other comprehensive income (loss) 0 0
Amounts recognized directly in equity 0 0
Others [1] 0 0
Ending balance 1,033,671 1,256,034
Unused tax losses    
Deferred tax expenses by origination and reversal of deferred assets and liabilities and temporary differences [Line Items]    
Beginning balance 1,111,813 554,457
Amounts recognized in profit or loss (218,739) 557,356
Amount recognized in other comprehensive income (loss) 0 0
Amounts recognized directly in equity 0 0
Others [1] 0 0
Ending balance 893,074 1,111,813
Excess of donation limit    
Deferred tax expenses by origination and reversal of deferred assets and liabilities and temporary differences [Line Items]    
Beginning balance 36,695 17,848
Amounts recognized in profit or loss (1,514) 18,847
Amount recognized in other comprehensive income (loss) 0 0
Amounts recognized directly in equity 0 0
Others [1] 0 0
Ending balance 35,181 36,695
Tax credit    
Deferred tax expenses by origination and reversal of deferred assets and liabilities and temporary differences [Line Items]    
Beginning balance 107,526 36,656
Amounts recognized in profit or loss (2,110) 70,870
Amount recognized in other comprehensive income (loss) 0 0
Amounts recognized directly in equity 0 0
Others [1] 0 0
Ending balance ₩ 105,416 ₩ 107,526
[1] 'Others' include amount changed due to business combination. (see Note 51)