XML 479 R96.htm IDEA: XBRL DOCUMENT v3.25.0.1
About the presentation of our financial statements - Additional information (Detail)
$ in Millions, $ in Millions
 12 Months Ended 72 Months Ended
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2024
AUD ($)
Dec. 31, 2023
AUD ($)
Disclosure of joint operations [line items]          
Materiality threshold $ 700        
Intragroup loans       $ 15,717 $ 15,102
Carbon emission reduction target (%), 2025 15.00%        
Carbon emission reduction target (%), 2030 50.00%        
Carbon emission reduction target (%), 2050 0.00%        
Carbon emission reduction, percent     14.00%    
Gross emissions, reduction target (%), 2030 40.00%        
Gross emissions reduction, use of offsets limitation (%) 10.00%        
Investment in various decarbonisation projects, capitalised $ 283 $ 191 $ 283    
Operating expenditure and R&D costs 306 234      
Contractually committed decarbonisation capital commitments 114 123 114    
Investment in entities specialising in decarbonisation and related technology accounted as financial assets 89 36 89    
Cash royalty receipt 45 38      
Other intangible assets          
Disclosure of joint operations [line items]          
Carbon abatement spend 50 61      
Level 3 | Forward electricity price Energy volume | Discounted cash flows | Renewable power purchase agreements          
Disclosure of joint operations [line items]          
Financial liabilities, at fair value 111 0 111    
Royalty receivables | Level 3 | Forward commodity price Mine production | Discounted cash flows          
Disclosure of joint operations [line items]          
Financial assets, fair value 252 $ 214 $ 252    
Bottom of range          
Disclosure of joint operations [line items]          
Estimated incremental capital expenditures 5,000        
Top of range          
Disclosure of joint operations [line items]          
Estimated incremental capital expenditures $ 6,000