v3.26.1
Contingent Liabilities - Summary of Contingent Liabilities (Detail) - USD ($)
Jun. 30, 2026
Jun. 30, 2025
Disclosure of contingent liabilities [line items]    
Contingent liabilities $ 3,063,000,000 $ 2,575,000,000
Material claim 0  
Associates and joint ventures [member]    
Disclosure of contingent liabilities [line items]    
Contingent liabilities [1] 2,003,000,000 1,664,000,000
Subsidiaries and joint operations [member]    
Disclosure of contingent liabilities [line items]    
Contingent liabilities [1] $ 1,060,000,000 $ 911,000,000
[1] There are a number of matters, for which it is not possible at this time to provide a range of possible outcomes or a reliable estimate of potential future exposures, and for which no amounts have been included in the table above.