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Other Financial Assets and Liabilities - Additional Information (Detail)
SFr in Millions, $ in Millions
12 Months Ended
Dec. 31, 2022
USD ($)
bbl
Dec. 31, 2021
USD ($)
Dec. 31, 2022
CHF (SFr)
bbl
Other financial assets and liabilities [line items]      
Increase decrease in derivative financial liability through restrike of hedging instrument at current market value $ 150    
Receivables subject to provisional pricing adjustments 0 $ 163  
Repurchase agreements for net settlement 0 69  
Adjustments for increase (decrease) in other financial liabilities 3 56  
Gain (loss) on hedge ineffectiveness recognised in profit or loss 72 38  
Payments for hedge collateral 506    
London Interbank Offered Rate LIBOR [member] | Significant interest rate benchmarks subject to interest rate benchmark reform [member]      
Other financial assets and liabilities [line items]      
Financial liabilities 670 957  
Financial assets $ 393 $ 367  
2023 [member]      
Other financial assets and liabilities [line items]      
Percentage of hedged pricing risk 82.00%    
2024 [member]      
Other financial assets and liabilities [line items]      
Percentage of hedged pricing risk 29.00%    
2022 [member]      
Other financial assets and liabilities [line items]      
Percentage of hedged pricing risk 49.00%    
Oil Swaps [Member]      
Other financial assets and liabilities [line items]      
Oil and gas sale price | bbl 75   75
Derivative financial liabilities $ 92    
Payments for hedge collateral 506    
Interest rate swap contract [member] | Syndicated facility [member] | Cash flow hedges [member]      
Other financial assets and liabilities [line items]      
Hedging instrument, assets $ 600    
Hedging instrument year of maturity 2027    
Currency swap contract [member] | Cash flow and fair value hedges [member]      
Other financial assets and liabilities [line items]      
Hedging instrument, liabilities | SFr     SFr 175