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Capital and other commitments (Tables) | 12 Months Ended
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Dec. 31, 2018
Text block [abstract] |
Summary of Capital and Other Commitments |
|  | 2018 $m |  |  | 2017 $m |
Contracts placed for expenditure not provided for in the Financial Statements: |  |  |  |  |  |  |  |
Property, plant and equipmenta |  |  | 46 |  |  |  | 18 |
Intangible assets |  |  | 7 |  |  |  | 27 |
Key money |  |  | 83 |  |  |  | 59 |
|  |  | 136 |  |  |  | 104 |
a | Includes a commitment to spend $33m on the acquired UK portfolio (see note 11) within two and a half years of the acquisition date.

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