Annual and transition report of foreign private issuers [Sections 13 or 15(d)]

Financial risk management - Summary Of Contractual Electricity Supply Profile (Detail)

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Financial risk management - Summary Of Contractual Electricity Supply Profile (Detail) - GWh
Dec. 31, 2024
Dec. 31, 2023
Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs, liabilities [line items]    
Average expected coverage 78.00% 25.00%
More than one year    
Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs, liabilities [line items]    
Average expected coverage 207.00%  
Amounts due between one and five years    
Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs, liabilities [line items]    
Average expected coverage 104.00%  
Amounts due after five years    
Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs, liabilities [line items]    
Average expected coverage 57.00%  
The Netherlands    
Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs, liabilities [line items]    
Total 2,499  
The Netherlands | More than one year    
Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs, liabilities [line items]    
Total 282  
The Netherlands | Amounts due between one and five years    
Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs, liabilities [line items]    
Total 1,068  
The Netherlands | Amounts due after five years    
Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs, liabilities [line items]    
Total 1,149  
Germany    
Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs, liabilities [line items]    
Total 1,022  
Germany | More than one year    
Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs, liabilities [line items]    
Total 107  
Germany | Amounts due between one and five years    
Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs, liabilities [line items]    
Total 427  
Germany | Amounts due after five years    
Disclosure of sensitivity analysis of fair value measurement to changes in unobservable inputs, liabilities [line items]    
Total 488