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Lease | 12 Months Ended
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Dec. 31, 2018
Text block [abstract] |
Lease |
21. | Lease
The Group’s non-cancellable lease arrangements as at December 31, 2018, are as follows: Details of finance lease assets as at December 31, 2017 and 2018, are as follows:
(In millions of Korean won) |  | December 31, 2017 |  |  | December 31, 2018 |
Acquisition costs |  | ￦ | 325,975 |  |  | ￦ | 343,055 |
Less: Accumulated depreciation |  |  | (126,091 | ) |  |  | (152,244 | )
Net balance |  | ￦ | 199,884 |  |  | ￦ | 190,811 |
As at December 31, 2018, the Group recognized financial lease assets as other property and equipment. The related depreciation amounted to ￦63,070 million for the year ended December 31, 2018 (for the year ended December 31, 2017: ￦58,535 million). Details of future minimum lease payments as at December 31, 2017 and 2018, under finance lease contracts are summarized below:
(In millions of Korean won) |  | December 31, 2017 |  |  | December 31, 2018 |
Total amount of minimum lease payments |  |  |  |  |  |  |  |
Within one year |  | ￦ | 88,441 |  |  | ￦ | 77,615 |
From one year to five years |  |  | 132,113 |  |  |  | 124,498 |
More than five years |  |  | 81 |  |  |  | 79 |
|  |  | 220,635 |  |  |  | 202,192 |
Unrealized interest expense |  |  | 43,758 |  |  |  | 38,334 |
Net amount of minimum lease payments |  |  |  |  |  |  |  |
Within one year |  |  | 68,651 |  |  |  | 59,324 |
From one year to five years |  |  | 108,146 |  |  |  | 104,456 |
More than five years |  |  | 80 |  |  |  | 78 |
Total |  | ￦ | 176,877 |  |  | ￦ | 163,858 |
Details of future minimum lease payments as at December 31, 2017 and 2018, under operating lease contracts are summarized below:
(In millions of Korean won) |  | December 31, 2017 |  |  | December 31, 2018 |
Within one year |  | ￦ | 109,258 |  |  | ￦ | 109,025 |
From one year to five years |  |  | 266,434 |  |  |  | 263,395 |
Thereafter |  |  | 1,635 |  |  |  | 1,153 |
Total |  | ￦ | 377,327 |  |  | ￦ | 373,573 |
Operating lease expenses incurred for the years ended December 31, 2017 and 2018, amounted to ￦126,250 million and ￦132,225 million, respectively.

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- Definition The entire disclosure for leases. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2019-01-01 -Name IAS -Number 17 -IssueDate 2018-01-01 -Section Leases in the financial statements of lessees -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=17&date=2018-03-02&anchor=sect_Leasesinthefinancialstatementsoflessees&doctype=Standard&book=b -URIDate 2018-03-16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2019-01-01 -Name IAS -Number 17 -IssueDate 2018-01-01 -Section Leases in the financial statements of lessors -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=17&date=2018-03-02&anchor=sect_Leasesinthefinancialstatementsoflessors&doctype=Standard&book=b -URIDate 2018-03-16 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2019-01-01 -Name IFRS -Number 16 -IssueDate 2018-01-01 -Section Presentation -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=16&date=2018-03-01&anchor=sect_Presentation&doctype=Standard -URIDate 2018-03-16 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2019-01-01 -Name IFRS -Number 16 -IssueDate 2018-01-01 -Section Disclosure -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=16&date=2018-03-01&anchor=sect_Disclosure&doctype=Standard -URIDate 2018-03-16 + Details
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