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FINANCIAL ASSETS (Tables) | 12 Months Ended
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Dec. 31, 2018
Financial Instruments [Abstract] |
Disclosure of financial assets [Table Text Block] |
US$ MILLIONS |  | 2018 |  | 2017
Current: |  |  |  |
Marketable securities |  | $ | 173 |  |  | $ | 85 |
Foreign currency forward contracts |  | 123 |  |  | 10 |
Loans and receivables |  | 61 |  |  | 43 |
Other |  | 67 |  |  | 54 |
Total current |  | $ | 424 |  |  | $ | 192 |
Non-current: |  |  |  |
Foreign currency forward contracts |  | $ | 118 |  |  | $ | 226 |
Cross currency interest rate swaps |  | 594 |  |  | 243 |
Loans and receivables |  | 145 |  |  | 210 |
Other |  | 64 |  |  | 51 |
Total non-current |  | $ | 921 |  |  | $ | 730 |

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- Definition Disclosure of financial assets [Table Text Block] + References No definition available. + Details
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- Definition Financial Instruments [Abstract] + References No definition available. + Details
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