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v3.19.1

Impairment of Assets - Lifecell - Additional Information (Detail) - Lifecell [member] | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017
Actuarial assumption of weighted average cost of capital [member] |  |
Disclosure of detailed information about intangible assets [line items] |  |
Percentage of reasonably possible increase in actuarial assumption | 0.50% | 0.50%
Percentage of reasonably possible decrease in actuarial assumption | (0.50%) | (0.50%)
Individual assets or cash-generating units [member] |  |
Disclosure of detailed information about intangible assets [line items] |  |
Terminal growth rate | 5.30% | 6.00%
Description on key assumptions | A post-tax WACC rate of 27.0% for the period from 2019 to 2024, a post-tax WACC rate of 26.3% for the period after 2024 and a terminal growth rate of 5.3% were used to extrapolate cash flows beyond the 6-year forecasts period based on the business plans. | Post-tax WACC rate of 26.5% for the period from 2018 to 2022, a post-tax WACC rate of 25.9% for the period after 2022 and a terminal growth rate of 6.0% were used to extrapolate cash flows beyond the 6-year forecasts period based on the business plans.
Individual assets or cash-generating units [member] | 2018 to 2022 [member] |  |
Disclosure of detailed information about intangible assets [line items] |  |
Post-tax WACC rate |  | 26.50%
Individual assets or cash-generating units [member] | After 2022 [member] |  |
Disclosure of detailed information about intangible assets [line items] |  |
Post-tax WACC rate |  | 25.90%
Individual assets or cash-generating units [member] | 2019 to 2024 [member] |  |
Disclosure of detailed information about intangible assets [line items] |  |
Post-tax WACC rate | 27.00% |
Individual assets or cash-generating units [member] | After 2024 [member] |  |
Disclosure of detailed information about intangible assets [line items] |  |
Post-tax WACC rate | 26.30% |

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- Definition The growth rate used to extrapolate cash flow projections beyond the period covered by the most recent budgets/forecasts for a cash-generating unit (group of units). [Refer: Cash-generating units [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2018-01-01 -Paragraph 134 -Subparagraph d -Clause iv -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=36&date=2018-03-01&anchor=para_134_d_iv&doctype=Standard -URIDate 2018-03-16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2018-01-01 -Paragraph 134 -Subparagraph e -Clause iv -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=36&date=2018-03-01&anchor=para_134_e_iv&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The description of management's approach to determining the value (or values) assigned to key assumptions, whether those value(s) reflect past experience or, if appropriate, are consistent with external sources of information and, if not, how and why they differ from past experience or external sources of information. Key assumptions are those to which the unit’s (group of units’) recoverable amount is most sensitive. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2018-01-01 -Paragraph 134 -Subparagraph d -Clause ii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=36&date=2018-03-01&anchor=para_134_d_ii&doctype=Standard -URIDate 2018-03-16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2018-01-01 -Paragraph 135 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=36&date=2018-03-01&anchor=para_135_d&doctype=Standard -URIDate 2018-03-16 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2018-01-01 -Paragraph 134 -Subparagraph e -Clause ii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=36&date=2018-03-01&anchor=para_134_e_ii&doctype=Standard -URIDate 2018-03-16 + 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 reasonably possible percentage of the decrease in the actuarial assumption used to determine the present value of defined benefit obligation. [Refer: Actuarial assumptions [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2018-01-01 -Paragraph 145 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=19&date=2018-03-01&anchor=para_145_a&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The reasonably possible percentage of the increase in the actuarial assumption used to determine the present value of defined benefit obligation. [Refer: Actuarial assumptions [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2018-01-01 -Paragraph 145 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=19&date=2018-03-01&anchor=para_145_a&doctype=Standard -URIDate 2018-03-16 + Details
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