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Acquisition of Businesses - Summary of Cash Flows Relating to Acquisitions (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018
Disclosure of consideration transferred business combinations [line items] |  |
Cash paid on acquisition, including working capital settlement | $ 299 | $ 22
Settlement of stamp duty liability | 3 | 14
Less: cash and cash equivalents acquired | (7) | (2)
Less: working capital settlement received in year following acquisition | (3) |
Net cash outflow arising on acquisitions | $ 292 | $ 34

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- Definition The amount of cash and cash equivalents in subsidiaries or other businesses over which control is obtained or lost. [Refer: Subsidiaries [member]; Cash and cash equivalents] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2020-01-01 -Paragraph 40 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2020-en-r&anchor=para_40_c&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The aggregate cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities. [Refer: Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2020-01-01 -Paragraph 39 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2020-en-r&anchor=para_39&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The fair value, at acquisition date, of cash transferred as consideration in a business combination. [Refer: Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2020-01-01 -Paragraph B64 -Subparagraph f -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2020-en-r&anchor=para_B64_f_i&doctype=Appendix&subtype=B -URIDate 2020-01-01 + Details
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- Definition Disclosure of consideration transferred business combinations. + References No definition available. + Details
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- Definition The amount recognised as of the acquisition date for settlement of stamp duty liability assumed in a business combination. + References No definition available. + Details
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- Definition Working capital settlement received In the year of acquisition. + References No definition available. + Details
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