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Principal joint ventures and associates - Summary financial information for joint ventures by fair value (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Disclosure Of Joint Ventures And Associates [Line Items]      
Revenue $ 54,041 $ 55,554 [1] $ 63,495 [1]
Finance expense (967) (335) [1] (243) [1]
Income tax (3,832) (5,614) [1] (8,236) [1]
Profit after tax for the year 9,953 [2] 13,048 [1],[3] 22,597 [2],[3]
Other comprehensive (loss)/income 319 (1,897) [3] (1,292) [3]
Total comprehensive income [4] 10,272 11,151 [3] $ 21,305 [3]
Non-current assets 82,039 77,801 [5]  
Current assets 21,510 18,973 [5]  
Non-current liabilities (34,465) (32,430) [5]  
Net assets 56,341 52,741 [5]  
– cash and cash equivalents 9,673 6,775 [5]  
Minera Escondida Ltda      
Disclosure Of Joint Ventures And Associates [Line Items]      
Revenue 9,187 8,760  
Depreciation and amortisation (1,183) (1,100)  
Other operating costs (3,784) (3,280)  
Operating profit 4,220 4,380  
Finance expense (283) (207)  
Income tax (1,773) (1,590)  
Profit after tax for the year 2,164 2,583  
Other comprehensive (loss)/income (13) 17  
Total comprehensive income 2,151 2,600  
Non-current assets 12,480 11,853  
Current assets 2,751 2,563  
Current liabilities (1,607) (1,450)  
Non-current liabilities (5,192) (5,063)  
Net assets 8,432 7,903  
– cash and cash equivalents 360 377  
– current financial liabilities (677) (340)  
– non-current financial liabilities (2,770) (3,060)  
Dividends received from joint venture (Rio Tinto share) $ 578 $ 813  
[1] Comparative information has been restated to reflect the adoption of narrow-scope amendments to IAS 12. Refer to page 166 for details.
[2] Comparative information has been restated to reflect the adoption of narrow-scope amendments to IAS 12. Refer to page 166 for details.
[3] Comparative information has been restated to reflect the adoption of narrow-scope amendments to IAS 12. Refer to page 166 for details.
[4] Refer to the Group statement of comprehensive income for further details. Adjustments to other reserves include currency translation attributable to owners of Rio Tinto, other than that arising on
Rio Tinto Limited’s share capital.
[5] Comparative information has been restated to reflect the adoption of narrow-scope amendments to IAS 12. Refer to page 166 for details.