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Discontinued Operations - Summary of Net Gain Loss on Merger (Parenthetical) (Detail) - Woodside [Member] - Discontinued operations [member]
Jun. 01, 2022
shares
May 31, 2022
$ / shares
May 31, 2022
$ / shares
Disclosure In Tabular Form Of Net Gain Loss On Merger [Line Items]      
Shares received as consideration for disposal of business 914,768,948    
Closing share price | (per share)   $ 29.76 $ 21.39
AUD [member]      
Disclosure In Tabular Form Of Net Gain Loss On Merger [Line Items]      
Exchange rate   0.7187 0.7187