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Exceptional items - Summary of Exceptional Items (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Administrative expenses: |  |  |
Administrative expenses | $ (379) | $ (352) | $ (420)
Other operating income and expenses: |  |  |
Gain on disposal of hotels |  |  | 871
Other operating income and expenses | 84 | 9 | 891
Impairment charges |  |  |
Property, plant and equipment |  |  | (27)
Impairment charges | (18) | (16) | (36)
Profit before tax | 678 | 591 | 1,412
Tax | (85) | (174) | (188)
Exceptional items [member] |  |  |
Administrative expenses: |  |  |
Kimpton integration costs | (15) | (13) | (10)
Reorganisation costs | (36) |  | (6)
Venezuelan currency losses |  |  | (4)
Corporate development costs |  |  | (5)
Administrative expenses | (51) | (13) | (25)
Other operating income and expenses: |  |  |
Gain on disposal of equity securities available-for-sale | 73 |  |
Gain on disposal of hotels |  |  | 871
Gain on disposal of investment in associate |  |  | 9
Other operating income and expenses | 73 |  | 880
Impairment charges |  |  |
Property, plant and equipment |  |  | (27)
Impairment charges | (18) | (16) | (36)
Profit before tax | 4 | (29) | 819
Tax on exceptional items | (2) | 12 | (8)
Exceptional tax | 118 |  |
Tax | 116 | 12 | (8)
Exceptional items [member] | Associates [member] |  |  |
Impairment charges |  |  |
Associates | $ (18) | $ (16) | $ (9)

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- Definition The amount of expense relating to restructuring. Restructuring is a programme that is planned and controlled by management and materially changes either the scope of a business undertaken by an entity or the manner in which that business is conducted. Such programmes include: (a) the sale or termination of a line of business; (b) closure of business locations in a country or region or the relocation of activities from one country or region to another; (c) changes in management structure; and (d) fundamental reorganisations that have a material effect on the nature and focus of the entity's operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 98 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_98_b&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The gains (losses) on available-for-sale financial assets. [Refer: Financial assets available-for-sale] + 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 20 -Subparagraph a -Clause ii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2017-03-02&anchor=para_20_a_ii&doctype=Standard&book=B -URIDate 2017-03-09 + Details
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