XML 192 R145.htm IDEA: XBRL DOCUMENT v3.24.1.u1
Impairment reversal (impairment and disposals) of non-current assets (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Midwestern System [Member]      
IfrsStatementLineItems [Line Items]      
Reversal of impairment loss $ 205 $ (78)
Manganese [Member]      
IfrsStatementLineItems [Line Items]      
Reversal of impairment loss (10) (35)
Vale Nouvelle Caledonie S. A. S [Member]      
IfrsStatementLineItems [Line Items]      
Reversal of impairment loss (98)
Impairment Reversal Of Noncurrent Assets [Member]      
IfrsStatementLineItems [Line Items]      
Reversal of impairment loss 195 (211)
Onerous Contracts Midwestern System [Member]      
IfrsStatementLineItems [Line Items]      
Reversal of impairment loss 916 (18)
Result Disposals Non Current Assets [Member]      
IfrsStatementLineItems [Line Items]      
Reversal of impairment loss (266) (338) (197)
Result Disposals Non Current Assets Other Results [Member]      
IfrsStatementLineItems [Line Items]      
Reversal of impairment loss (266) 578 (215)
Impairment Reversal Disposals Non Current Assets [Member]      
IfrsStatementLineItems [Line Items]      
Reversal of impairment loss $ (266) $ 773 $ (426)