Finance Lease Receivables (Details) - KRW (₩) ₩ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of maturity analysis of finance lease payments receivable [Line Items]
Undiscounted finance lease payments to be received	₩ 2,510,564	₩ 1,925,452
Present value of minimum lease payment		983,346
Less : Unearned finance income	(1,331,723)
Net investment in finance lease	1,178,841
Gross amount \| Not Later Than 1 Year
Disclosure of maturity analysis of finance lease payments receivable [Line Items]
Undiscounted finance lease payments to be received	173,093	124,918
Present value of minimum lease payment		84,688
Gross amount \| 1~5 Years
Disclosure of maturity analysis of finance lease payments receivable [Line Items]
Undiscounted finance lease payments to be received	596,819	467,518
Present value of minimum lease payment		223,622
Gross amount \| 1~2 Years
Disclosure of maturity analysis of finance lease payments receivable [Line Items]
Undiscounted finance lease payments to be received	150,895
Gross amount \| 2~3 Years
Disclosure of maturity analysis of finance lease payments receivable [Line Items]
Undiscounted finance lease payments to be received	150,596
Gross amount \| 3~4 Years
Disclosure of maturity analysis of finance lease payments receivable [Line Items]
Undiscounted finance lease payments to be received	149,364
Gross amount \| 4~5 Years
Disclosure of maturity analysis of finance lease payments receivable [Line Items]
Undiscounted finance lease payments to be received	145,964
Gross amount \| More than 5 years
Disclosure of maturity analysis of finance lease payments receivable [Line Items]
Undiscounted finance lease payments to be received	₩ 1,740,652	1,333,016
Present value of minimum lease payment		₩ 675,036

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- Definition

The gross investment in the finance lease discounted at the interest rate implicit in the lease. Finance lease is a lease that transfers substantially all the risks and rewards incidental to ownership of an underlying asset. Gross investment in the finance lease is the sum of: (a) the lease payments receivable by a lessor under a finance lease; and (b) any unguaranteed residual value accruing to the lessor. Interest rate implicit in the lease is the rate of interest that causes the present value of (a) the lease payments and (b) the unguaranteed residual value to equal to the sum of (i) the fair value of the underlying asset and (ii) the initial direct costs of the lessor.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 16
-IssueDate 2019-01-01
-Paragraph 94
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2019-en-r&anchor=para_94&doctype=Standard
-URIDate 2019-03-27

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- Definition

The amount of undiscounted finance lease payments to be received. Finance lease is a lease that transfers substantially all the risks and rewards incidental to ownership of an underlying asset.

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- Definition

The amount of unearned finance income relating to the finance lease payments receivable. Finance lease is a lease that transfers substantially all the risks and rewards incidental to ownership of an underlying asset. [Refer: Finance income]

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