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Trade and Other Receivables - Summary of Changes in Allowance for Doubtful Accounts (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Disclosure of financial assets [line items] |  |  |
Provision | ₩ 523,799 |  |
Trade receivables [member] |  |  |
Disclosure of financial assets [line items] |  |  |
Beginning balance | 470,871 | ₩ 468,741 | ₩ 527,617
Provision | 38,888 | 84,975 | 95,489
Reversal or written-off | (70,121) | (80,518) | (135,318)
Changes in the scope of consolidation | (107) | 215 | (16,752)
Others | (104) | (2,542) | 2,232
Ending balance | 439,427 | 470,871 | 468,741
Other receivables [member] |  |  |
Disclosure of financial assets [line items] |  |  |
Beginning balance | 141,616 | 250,842 | 311,082
Provision | 5,809 | 7,736 | 46,066
Reversal or written-off | (61,220) | (108,638) | (33,282)
Changes in the scope of consolidation | (35) | 56 | (69,732)
Others | (1,798) | (8,380) | (3,272)
Ending balance | ₩ 84,372 | ₩ 141,616 | ₩ 250,842

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- Definition The amount of additional allowance for credit losses of financial assets recognised in profit or loss. [Refer: Allowance account for credit losses of financial assets] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Note Expiry date 2018-01-01 -Name IFRS -Number 7 -IssueDate 2017-01-01 -Paragraph 16 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-02&anchor=para_16&doctype=Standard&book=B -URIDate 2017-03-09 + Details
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- Definition The amount of an allowance account used to record impairments to financial assets due to credit losses. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2018-01-01 -Name IFRS -Number 7 -IssueDate 2017-01-01 -Paragraph 16 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-02&anchor=para_16&doctype=Standard&book=B -URIDate 2017-03-09 + Details
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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Definition The increase (decrease) in allowance account for credit losses of financial assets resulting from changes that the entity does not separately disclose in the same statement or note. [Refer: Allowance account for credit losses of financial assets] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Note Expiry date 2018-01-01 -Name IFRS -Number 7 -IssueDate 2017-01-01 -Paragraph 16 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-02&anchor=para_16&doctype=Standard&book=B -URIDate 2017-03-09 + Details
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- Definition Allowance for doubtful accounts changes in the scope of consolidation. + References No definition available. + Details
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- Definition Reversal or write off allowance account for credit losses of financial assets. + References No definition available. + Details
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- Details
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- Details
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