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Other financial assets (including non-quasi equity loans to equity accounted units) (Tables) | 12 Months Ended
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Dec. 31, 2018
Disclosure Of Other Financial Assets [Abstract] |
Summary of other financial assets including non-quasi equity loans to equity accounted units |
| Non-current |  | Current |  | Total |  | Non-current |  | Current |  | Total |
|  | 2018 |  |  | 2018 |  |  | 2018 |  |  | 2017 |  |  | 2017 |  |  | 2017 |
| US$m |  | US$m |  | US$m |  | US$m |  | US$m |  | US$m |
Derivative financial instruments |  | 468 |  |  | 88 |  |  | 556 |  |  | 238 |  |  | 29 |  |  | 267 |
Equity shares and quoted funds |  | 53 |  |  | 77 |  |  | 130 |  |  | 45 |  |  | 91 |  |  | 136 |
Other investments, including loans (a) |  | 255 |  |  | 2,527 |  |  | 2,782 |  |  | 188 |  |  | 964 |  |  | 1,152 |
Loans to equity accounted units |  | 38 |  |  | - |  |  | 38 |  |  | 39 |  |  | - |  |  | 39 |
Total |  | 814 |  |  | 2,692 |  |  | 3,506 |  |  | 510 |  |  | 1,084 |  |  | 1,594 |
(a) | Current “Other investments, including loans” comprise US$2,522 million (2017: US$958 million) of highly liquid financial assets held in managed investment funds classified as held for trading.

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- Definition The disclosure of detailed information about other financial assets. + References No definition available. + Details
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- Definition Other financial assets (including non-quasi equity loans to equity accounted units). + References No definition available. + Details
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