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Finance income and finance costs | 12 Months Ended
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Dec. 31, 2019
Disclosure Of Finance Income And Finance Costs [Abstract] |
Finance income and finance costs | 8 Finance income and finance costs
| Note |  | 2019 US$m |  | 2018 US$m |  | 2017 US$m |
Finance income from equity accounted units |  | 4 |  | 7 |  | 4 |
Other finance income (including bank deposits, net investment in leases, and other financial assets) |  | 296 |  | 242 |  | 137 |
Total finance income |  | 300 |  | 249 |  | 141 |
Interest on: |  |  |  |
– Financial liabilities at amortised cost (excluding lease liabilities) and associated derivatives |  | (816 | ) | (775 | ) | (819 | )
– Lease liabilities |  | (55 | ) | (2 | ) | (3 | )
Fair value movements: |  |  |  |
– Bonds designated as hedged items in fair value hedges |  | (185 | ) | 96 |  | 28 |
– Derivatives designated as hedging instruments in fair value hedges |  | 181 |  | (73 | ) | (22 | )
Loss on early redemption of bonds(a) |  | — |  | (94 | ) | (256 | )
Amounts capitalised | 14 |  | 321 |  | 296 |  | 224 |
Total finance costs |  | (554 | ) | (552 | ) | (848 | )
(a) | In 2018, loss on early redemption of bonds included a premium charge of US$72 million; unamortised debt issuance costs and fees of US$9 million, the write-off of the fair value hedge adjustment of US$16 million and the reclassification of a gain out of the cost of hedging reserve of US$3 million. In 2017, loss of early redemption of bonds included a premium charge of US$238 million; unamortised debt issuance costs and fees of US$14 million and the write-off of the fair value hedge adjustment of US$4 million. We did not buy back any bonds in 2019. See note 30.

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- Definition The disclosure of finance income (cost). [Refer: Finance income (cost)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 10 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_10_e&doctype=Standard -URIDate 2019-03-27 + Details
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