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Deferred Income Taxes - Significant Components of Deferred Tax Assets and Liabilities (Detail) - EUR (€) € in Millions | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016
Significant components of deferred tax assets and liabilities [line items] |  |
At January 1 | € 222 | € 260
Recognized in Profit or loss | (54) | (50)
Recognized in OCI | (20) | 11
Effect of change in foreign exchange rates | (9) | 2
other |  | (1)
At December 31 | 139 | 222
Long-term assets [member] |  |
Significant components of deferred tax assets and liabilities [line items] |  |
At January 1 | (90) | (27)
Recognized in Profit or loss | 5 | (59)
Effect of change in foreign exchange rates | 9 | (4)
At December 31 | (76) | (90)
Inventories [member] |  |
Significant components of deferred tax assets and liabilities [line items] |  |
At January 1 | 6 | 4
Recognized in Profit or loss | (2) | 3
other |  | (1)
At December 31 | 4 | 6
Pensions [member] |  |
Significant components of deferred tax assets and liabilities [line items] |  |
At January 1 | 188 | 193
Recognized in Profit or loss | (39) | (11)
Recognized in OCI | (5) | 2
Effect of change in foreign exchange rates | (14) | 4
At December 31 | 130 | 188
Derivative valuation [member] |  |
Significant components of deferred tax assets and liabilities [line items] |  |
At January 1 | 13 | 27
Recognized in Profit or loss | (17) | (21)
Recognized in OCI | (15) | 9
Effect of change in foreign exchange rates | (1) |
other |  | (2)
At December 31 | (20) | 13
Tax losses carried forward [member] |  |
Significant components of deferred tax assets and liabilities [line items] |  |
At January 1 | 79 | 40
Recognized in Profit or loss | 3 | 38
Effect of change in foreign exchange rates | (4) | 1
At December 31 | 78 | 79
Other [member] |  |
Significant components of deferred tax assets and liabilities [line items] |  |
At January 1 | 26 | 23
Recognized in Profit or loss | (3) |
Effect of change in foreign exchange rates |  | 1
other |  | 2
At December 31 | € 23 | € 26

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- Definition The amount of tax expense or income relating to changes in deferred tax liabilities and deferred tax assets, recognised in profit or loss. [Refer: Deferred tax assets; Deferred tax expense (income); Deferred tax liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2017-01-01 -Paragraph 81 -Subparagraph g -Clause ii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=12&date=2017-03-01&anchor=para_81_g_ii&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The increase (decrease) in deferred tax liability (asset) resulting from the net exchange differences arising when the financial statements are translated from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity. [Refer: Deferred tax liability (asset)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 12 -IssueDate 2017-01-01 -Paragraph 81 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=12&date=2017-03-01&anchor=para_81&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The amount of deferred tax assets net of deferred tax liabilities, when the absolute amount of deferred tax assets is greater than the absolute amount of deferred tax liabilities. [Refer: Deferred tax assets; Deferred tax liabilities] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 12 -IssueDate 2017-01-01 -Paragraph 81 -Subparagraph g -Clause i -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=12&date=2017-03-01&anchor=para_81_g_i&doctype=Standard -URIDate 2017-03-09 + Details
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