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Deferred Tax Balances - Additional Information (Detail) - USD ($)
$ in Millions
Jun. 30, 2022
Jun. 30, 2021
Unrecognized deferred tax assets and liabilities [line items]    
Deferred tax assets not arising from the reversal of existing deferred tax liabilities $ 56 $ 1,912
Tax losses [member]    
Unrecognized deferred tax assets and liabilities [line items]    
Deferred tax assets not arising from the reversal of existing deferred tax liabilities $ 18 $ 1,675