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Business Combination - Additional Information (Detail) $ / shares in Units, $ in Millions |  | 7 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Jun. 01, 2022 USD ($) shares $ / shares | Dec. 31, 2022 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | May 19, 2022
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |
Provisional locked box payment received |  |  | $ 683 |  |  |
Dividends paid |  |  | (3,160) | $ (471) | $ (811) |
Consideration paid received |  |  | 1,082 |  |  |
BHP Petroleum International Pty Ltd [member] |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |
Percentage of shareholders voted for merger |  |  |  |  |  | 66.00%
Percentage of voting equity interests acquired | 100.00% |  |  |  |  |
Number of instruments or interests issued or issuable | shares | 914,768,948 |  |  |  |  |
Acquisition related costs |  |  | 419 |  |  |
Acquisition related costs paid classified as operating activities | $ 419 |  | 357 |  |  |
Payments for share issue costs |  |  | 5 |  |  |
Shares issued, at fair value | $ 19,265 | $ 19,265 | 19,265 |  |  |
Business acquisition share price | $ / shares | $ 21.06 |  |  |  |  |
Provisional locked box payment received |  |  | 1,513 |  |  |
Dividends paid |  |  | 830 |  |  |
Revenue of acquiree since acquisition date |  | 4,653 |  |  |  |
Profit (loss) of acquiree since acquisition date |  | $ 2,042 |  |  |  |
Revenue of combined entity as if combination occurred at beginning of period |  |  | 3,115 |  |  |
Profit (loss) of combined entity as if combination occurred at beginning of period |  |  | 1,265 |  |  |
Contingent liabilities recognised in business combination | $ 79 |  |  |  |  |
Goodwill generated allocated to net deferred tax liability | 1,958 |  |  |  |  |
Goodwill generated allocated to cash generating unit | 2,656 |  |  |  |  |
Goodwill expected to be deductible for tax purposes | $ 0 |  |  |  |  |
Percentage of forfeiture rate | 3.00% |  |  |  |  |
Share replacement awards recognized in business combination | $ 18 |  |  |  |  |
Gross provisional locked box payment received |  |  | 1,513 |  |  |
Fair value of the replacement awards | $ 49 |  |  |  |  |
Provisonal lock box payment received classfied as investing activities |  |  | 683 |  |  |
Consideration paid received |  |  | 399 |  |  |
BHP Petroleum International Pty Ltd [member] | Cash Flows as Financing Activities [member] |  |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |  |
Provisional locked box payment received |  |  | $ 683 |  |  |

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- Definition The amount of acquisition-related costs recognised as an expense for transactions that are recognised separately from the acquisition of assets and the assumption of liabilities in business combinations. [Refer: Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2022-03-24 -Paragraph B64 -Subparagraph m -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2022-en-r&anchor=para_B64_m&doctype=Appendix&subtype=B -URIDate 2022-03-24 + Details
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- Definition The amount of consideration paid or received in respect of both obtaining and losing control of subsidiaries or other businesses. [Refer: Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2022-03-24 -Paragraph 40 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2022-en-r&anchor=para_40_a&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount of contingent liabilities recognised in a business combination. [Refer: Contingent liabilities [member]; Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2022-03-24 -Paragraph B67 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2022-en-r&anchor=para_B67_c&doctype=Appendix&subtype=B -URIDate 2022-03-24 + Details
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- Definition The amount of dividends recognised as distributions to owners. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 107 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_107&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The fair value, at the acquisition date, of equity interests of the acquirer 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 2022-03-24 -Paragraph B64 -Subparagraph f -Clause iv -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2022-en-r&anchor=para_B64_f_iv&doctype=Appendix&subtype=B -URIDate 2022-03-24 + Details
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- Definition The number of instruments or interests issued or issuable at acquisition date for equity interests of the acquirer transferred as consideration in a business combination. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2022-03-24 -Paragraph B64 -Subparagraph f -Clause iv -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2022-en-r&anchor=para_B64_f_iv&doctype=Appendix&subtype=B -URIDate 2022-03-24 + Details
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- Definition The percentage of voting equity interests acquired in a business combination. [Refer: Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2022-03-24 -Paragraph B64 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2022-en-r&anchor=para_B64_c&doctype=Appendix&subtype=B -URIDate 2022-03-24 + Details
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- Definition The profit (loss) of the acquiree, since the acquisition date, included in the consolidated statement of comprehensive income. [Refer: Profit (loss)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2022-03-24 -Paragraph B64 -Subparagraph q -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2022-en-r&anchor=para_B64_q_i&doctype=Appendix&subtype=B -URIDate 2022-03-24 + Details
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- Definition The profit (loss) of the combined entity as though the acquisition date for all business combinations that occurred during the year had been as of the beginning of the annual reporting period. [Refer: Business combinations [member]; Profit (loss)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2022-03-24 -Paragraph B64 -Subparagraph q -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2022-en-r&anchor=para_B64_q_ii&doctype=Appendix&subtype=B -URIDate 2022-03-24 + Details
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- Definition The amount of revenue of the acquiree since the acquisition date included in the consolidated statement of comprehensive income. [Refer: Revenue] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2022-03-24 -Paragraph B64 -Subparagraph q -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2022-en-r&anchor=para_B64_q_i&doctype=Appendix&subtype=B -URIDate 2022-03-24 + Details
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- Definition The revenue of the combined entity as though the acquisition date for all business combinations that occurred during the year had been as of the beginning of the annual reporting period. [Refer: Business combinations [member]; Revenue] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2022-03-24 -Paragraph B64 -Subparagraph q -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2022-en-r&anchor=para_B64_q_ii&doctype=Appendix&subtype=B -URIDate 2022-03-24 + Details
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- Definition Acquisition related costs paid classified as operating activities. + References No definition available. + Details
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- Definition Fair value of the replacement awards. + References No definition available. + Details
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- Definition Goodwill generated allocated to cash generating unit. + References No definition available. + Details
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- Definition Goodwill generated allocated to net deferred tax liability. + References No definition available. + Details
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- Definition Gross provisional locked box payment received as cash flows on acquisition. + References No definition available. + Details
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- Definition Percentage of shareholders voted for merger. + References No definition available. + Details
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- Definition Share replacement awards recognised in business combination. + References No definition available. + Details
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