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Segmental Information - Summary of Information by Reportable Segment - Assets and Liabilities (Detail) - USD ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | --- | ---
Disclosure of reportable segments [line items] |  |  |
Derivative financial instruments | $ 8 |  |
Tax receivable | 58 | $ 117 |
Deferred tax assets | 60 | 75 | $ 69
Cash and cash equivalents | 704 | 168 | 206
Assets | 3,753 | 3,010 | 2,762
Loyalty and co-brand deferred revenue and other payables | (1,291) | (1,186) |
Loans and other borrowings | (2,249) | (2,019) |
Tax payable | (50) | (89) |
Deferred tax liabilities | (131) | (101) | (170)
Deferred and contingent purchase consideration | (131) |  |
Liabilities | (4,830) | (4,311) | $ (3,908)
Reportable segments [member] |  |  |
Disclosure of reportable segments [line items] |  |  |
Assets | 2,923 | 2,650 |
Liabilities | (978) | (916) |
Americas [member] | Reportable segments [member] |  |  |
Disclosure of reportable segments [line items] |  |  |
Assets | 1,568 | 1,500 |
Liabilities | (676) | (620) |
Greater China [member] | Reportable segments [member] |  |  |
Disclosure of reportable segments [line items] |  |  |
Assets | 110 | 105 |
Liabilities | (61) | (64) |
Central [member] | Reportable segments [member] |  |  |
Disclosure of reportable segments [line items] |  |  |
Assets | 579 | 541 |
Liabilities | 0 |  |
EMEAA [member] | Reportable segments [member] |  |  |
Disclosure of reportable segments [line items] |  |  |
Assets | 666 | 504 |
Liabilities | $ (241) | $ (232) |

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