v3.25.2
Financial instruments - Summary of Reconciliation from the Opening Balances to the Ending Balances (Details) - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Equity and debt investments    
Financial assets at beginning of period $ 7,381  
Financial assets at end of period 9,026  
Put options issued to non-controlling interests    
Financial liabilities at the beginning of the period (2,654)  
Financial liabilities at the end of the period (4,496)  
Level 3    
Equity and debt investments    
Financial assets at beginning of period 87 $ 98
- Gain/(loss) included in profit or loss   (13)
Transfer between Level 3 and Level 1 (22)  
Financial assets at end of period   86
Put options issued to non-controlling interests    
- Gain/(loss) included in profit or loss 5  
- Gain/(loss) included in OCI (6) 1
Net purchases/ (issuances) (482)  
Financial liabilities at the end of the period (418)  
Level 3 | Put options issued to non-controlling interests    
Put options issued to non-controlling interests    
Financial liabilities at the beginning of the period (146) (123)
- Gain/(loss) included in profit or loss 0 0
- Gain/(loss) included in OCI (6) 1
Net purchases/ (issuances) (10) 0
Transfer between Level 3 and Level 1 0  
Financial liabilities at the end of the period (162) (122)
Level 3 | Embedded derivative of the Convertible Notes    
Put options issued to non-controlling interests    
Financial liabilities at the beginning of the period 0 0
- Gain/(loss) included in profit or loss 3 0
- Gain/(loss) included in OCI 0 0
Net purchases/ (issuances) (482) 0
Transfer between Level 3 and Level 1 0  
Financial liabilities at the end of the period (479) 0
Equity and debt investments | Level 3    
Equity and debt investments    
Financial assets at beginning of period 233 221
- Gain/(loss) included in profit or loss 2 (13)
- Gain/(loss) included in OCI 0 0
Net purchases/ (issuances) 10  
Transfer between Level 3 and Level 1 (22)  
Financial assets at end of period $ 223 $ 208