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Energy Infrastructure Assets - Summary of Reconciliation Of changes In Carrying Amount Energy Infrastructure Assets (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Disclosure of detailed information about property, plant and equipment [line items]    
Beginning Balance $ 104  
Ending Balance 96 $ 104
Energy Infrastructure Assets [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Beginning Balance 864  
Ending Balance 713 864
Cost [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Beginning Balance 190 200
Additions 16 16
Disposals (12) (19)
Currency translation effects (6) 0
Ending Balance 187 190
Cost [Member] | Energy Infrastructure Assets [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Beginning Balance 1,142 1,129
Additions 59 90
Disposals (119) (70)
Currency translation effects (23) (7)
Ending Balance 1,059 1,142
Accumulated Depreciation And Amortisation [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Beginning Balance (86) (87)
Depreciation charge (20) (20)
Disposals 12 12
Currency translation effects 3 3
Ending Balance (91) (86)
Accumulated Depreciation And Amortisation [Member] | Energy Infrastructure Assets [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Beginning Balance (278) (215)
Depreciation charge (111) (127)
Impairment (1) (1)
Disposals 27 53
Currency translation effects 17 12
Ending Balance $ (346) $ (278)