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Consolidated Statements of Changes in Equity - KRW (₩)
₩ in Millions
Total
Share capital [member]
Share premium [member]
Retained earnings [member]
Accumulated other comprehensive income [member]
Other components of equity [member]
Total attributable to owners of the Controlling Company [member]
Non-controlling interest [member]
Beginning balance at Dec. 31, 2019 ₩ 15,140,684 ₩ 1,564,499 ₩ 1,440,258 ₩ 11,590,916 ₩ 194,934 ₩ (1,170,083) ₩ 13,620,524 ₩ 1,520,160
Comprehensive income                
Profit for the year 746,256     700,889     700,889 45,367
Remeasurements of net defined benefit liabilities (60,181)     (49,554)     (49,554) (10,627)
Share of gain on remeasurements of associates and joint ventures 786     410     410 376
Share of other comprehensive loss of associates and joint ventures 15,932       14,701   14,701 1,231
Valuation gain on cash flow hedge 27,387       27,433   27,433 (46)
Gain (Loss) on valuation of financial instruments at fair value through other comprehensive income 41,997     184,215 (150,135)   34,080 7,917
Exchange differences on translation of foreign operations (2,666)       (882)   (882) (1,784)
Total comprehensive income for the year 769,511     835,960 (108,883)   727,077 42,434
Transactions with owners                
Dividends paid by the Controlling Company (269,766)     (269,766)     (269,766)  
Dividends paid to non-controlling interest of subsidiaries (40,802)             (40,802)
Changes in ownership interest in subsidiaries 29,825         11,628 11,628 18,197
Appropriations of loss on disposal of treasury stock       (1,690)   1,690    
Acquisition of treasury stock (110,097)         (110,097) (110,097)  
Disposal of treasury stock 33,213         33,213 33,213  
Others (1,135)         (1,135) (1,135) 0
Subtotal (358,762)     (271,456)   (64,701) (336,157) (22,605)
Ending balance at Dec. 31, 2020 15,551,433 1,564,499 1,440,258 12,155,420 86,051 (1,234,784) 14,011,444 1,539,989
Comprehensive income                
Profit for the year 1,459,395     1,356,878     1,356,878 102,517
Remeasurements of net defined benefit liabilities 55,822     47,348     47,348 8,474
Share of gain on remeasurements of associates and joint ventures (1,596)     (1,559)     (1,559) (37)
Share of other comprehensive loss of associates and joint ventures (24,216)       (19,718)   (19,718) (4,498)
Valuation gain on cash flow hedge 5,272       5,222   5,222 50
Gain (Loss) on valuation of financial instruments at fair value through other comprehensive income 129,780     76,288 47,247   123,535 6,245
Exchange differences on translation of foreign operations 505       (1,333)   (1,333) 1,838
Total comprehensive income for the year 1,624,962     1,478,955 31,418   1,510,373 114,589
Transactions with owners                
Dividends paid by the Controlling Company (326,487)     (326,487)     (326,487)  
Dividends paid to non-controlling interest of subsidiaries (23,762)             (23,762)
Changes in scope of consolidation (17,566)             (17,566)
Changes in ownership interest in subsidiaries (6,823)         15,797 15,797 (22,620)
Appropriations of loss on disposal of treasury stock       (20,498)   20,498    
Acquisition of treasury stock (190,105)         (190,105) (190,105)  
Disposal of treasury stock 50,954         50,954 50,954  
Recognition of the obligation to purchase its own equity (101,829)         (101,829) (101,829)  
Others 6,384         6,389 6,389 (5)
Subtotal (609,234)     (346,985)   (198,296) (545,281) (63,953)
Ending balance at Dec. 31, 2021 16,567,161 1,564,499 1,440,258 13,287,390 117,469 (1,433,080) 14,976,536 1,590,625
Comprehensive income                
Profit for the year 1,385,635     1,260,470     1,260,470 125,165
Remeasurements of net defined benefit liabilities 181,429     165,524     165,524 15,905
Share of gain on remeasurements of associates and joint ventures (332)     (189)     (189) (143)
Share of other comprehensive loss of associates and joint ventures (10,851)       (8,291)   (8,291) (2,560)
Valuation gain on cash flow hedge (31,330)       (32,140)   (32,140) 810
Gain (Loss) on valuation of financial instruments at fair value through other comprehensive income (158,574)     4,091 (160,785)   (156,694) (1,880)
Exchange differences on translation of foreign operations 17,464       5,971   5,971 11,493
Total comprehensive income for the year 1,383,441     1,429,896 (195,245)   1,234,651 148,790
Transactions with owners                
Dividends paid by the Controlling Company (450,393)     (450,393)     (450,393)  
Dividends paid to non-controlling interest of subsidiaries (26,407)             (26,407)
Changes in scope of consolidation 3,152             3,152
Changes in ownership interest in subsidiaries 121,619         88,924 88,924 32,695
Appropriations of loss on disposal of treasury stock       (11,577)   11,577    
Acquisition of treasury stock 763,081         763,081 763,081  
Conversion of redeemable convertible preferred shares of subsidiaries to common shares 51,476             51,476
Others (434)         (2,654) (2,654) 2,220
Subtotal 462,094     (461,970)   860,928 398,958 63,136
Ending balance at Dec. 31, 2022 ₩ 18,412,696 ₩ 1,564,499 ₩ 1,440,258 ₩ 14,255,316 ₩ (77,776) ₩ (572,152) ₩ 16,610,145 ₩ 1,802,551