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Cash and cash equivalents | 12 Months Ended
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Dec. 31, 2018
Cash And Cash Equivalents [Abstract] |
Cash and cash equivalents | 21 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 |
Cash and cash equivalents of US$186 million (2017: US$290 million) are held in countries where there are restrictions on remittances. Of this balance, US$142 million (2017: US$158 million) could be used to repay subsidiaries’ third-party borrowings. There are also restrictions on a further US$1,090 million (2017: US$1,089 million) of cash and cash equivalents, the majority of which is held by partially owned subsidiaries and is not available for use in the wider Group due to legal and contractual restrictions currently in place. Of this balance US$864 million (2017: US$703 million) could be used to repay subsidiaries’ third-party borrowings.

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- Definition The disclosure of cash and cash equivalents. [Refer: Cash and cash equivalents] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 10 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_10_e&doctype=Standard -URIDate 2017-03-09 + Details
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