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Cash and cash equivalents (Tables) | 12 Months Ended
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Dec. 31, 2018
Cash And Cash Equivalents [Abstract] |
Summary of cash and cash equivalents |
|  |  |  |  | 2018 |  |  | 2017 |
| Note |  | US$m |  | US$m |
Cash at bank and in hand |  |  |  |  | 740 |  |  | 1,035 |
Money market funds and other cash equivalents |  |  |  |  | 10,033 |  |  | 9,515 |
Balance per Group balance sheet |  |  |  |  | 10,773 |  |  | 10,550 |
Bank overdrafts repayable on demand (unsecured) |  | 22 |  |  | (1 | ) |  | (3 | )
Cash and cash equivalents included in Assets held for sale |  | 19 |  |  | 117 |  |  | - |
Balance per Group cash flow statement |  |  |  |  | 10,889 |  |  | 10,547 |

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- Definition The disclosure of detailed information about cash and cash equivalents. + References No definition available. + Details
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