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Changes in Accounting Policies - Summary of Beginning Balance of Retained Earnings after Adjustment Due to Application of IFRS 9 (Detail) ₩ in Millions | Jan. 01, 2018 KRW (₩)
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Disclosure of expected impact of initial application of new standards or interpretations [line items] |
Beginning balance - IAS 39 | ₩ 9,961,150
Beginning balance of retained earnings after adjustment | 10,915,203
IAS 39 [member] |
Disclosure of expected impact of initial application of new standards or interpretations [line items] |
Beginning balance - IAS 39 | 9,961,150
IFRS9 [member] |
Disclosure of expected impact of initial application of new standards or interpretations [line items] |
Reclassification of available-for-sale securities to financial assets at fair value through profit or loss | 32,754
Reclassification of available-for-sale securities to financial assets at fair value through other comprehensive income | 2,191
Increase in provision for impairment of financial assets at amortized cost | (1,817)
Increase in provision with unused limit | (287)
Decrease in deferred income tax assets | (8,395)
Adjustments of non-controlled interests | (259)
Adjustment to retained earnings from adoption of IFRS 15 | 24,187
Beginning balance - IAS 39 | 9,985,337
IFRS 15 [member] |
Disclosure of expected impact of initial application of new standards or interpretations [line items] |
Adjustment to retained earnings from adoption of IFRS 15 | ₩ 929,866

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