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Decommissioning and Other Provisions (Tables)
 12 Months Ended
Dec. 31, 2024
Other Provisions, Contingent Liabilities And Contingent Assets [Abstract]  
Disclosure of change in decommissioning and other provision balances
The change in decommissioning and other provision balances is as follows:
 
Decommissioning and
restoration
Other provisionsTotal
Dec. 31, 2022
688 41 729 
Liabilities incurred1 4 5 
Liabilities settled(37)(13)(50)
Accretion47 1 48 
Revisions in estimated cash flows(89)— (89)
Revisions in discount rates52 — 52 
Change in foreign exchange rates(6)— (6)
Balance, Dec. 31, 2023656 33 689 
Liabilities acquired (Note 4)
101 55 156 
Liabilities incurred6 12 18 
Liabilities settled(41)(4)(45)
Accretion (Note 10)
50 — 50 
Transfer to accounts payable
— (31)(31)
Transfer to assets held for sale (Note 18)
(1)— (1)
Revisions in estimated cash flows
21 20 41 
Revisions in discount rates35 — 35 
Change in foreign exchange rates21 — 21 
Balance, Dec. 31, 2024848 85 933 
Included in the Consolidated Statements of Financial Position as:
As atDec. 31, 2024Dec. 31, 2023
Current portion83 35 
Non-current portion850 654 
Total decommissioning and other provisions
933 689