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Financial Instruments - Narrative (Details)
$ in Millions, € in Billions, ¥ in Billions, $ in Billions
3 Months Ended
Mar. 31, 2025
USD ($)
derivative
Mar. 31, 2025
EUR (€)
Mar. 31, 2025
CNY (¥)
Mar. 31, 2025
CAD ($)
Dec. 31, 2024
USD ($)
Derivative [Line Items]          
Different types of derivatives, number | derivative 3        
Notional value $ 12,213       $ 11,942
Gain on exchange rate movements (6,838)       (6,967)
Designated as Hedging Instrument          
Derivative [Line Items]          
Notional value 2,371       $ 1,839
Net Investment Hedging          
Derivative [Line Items]          
Cumulative deferred gain 287        
Derivative deferred loss 933        
Net Investment Hedging | Line of Credit          
Derivative [Line Items]          
Cumulative deferred gain 2        
Derivative deferred loss 28        
Net Investment Hedging | Designated as Hedging Instrument          
Derivative [Line Items]          
Gain on exchange rate movements 56        
Net Investment Hedging | Designated as Hedging Instrument | Intercompany Loans          
Derivative [Line Items]          
Euro-denominated notes and intercompany loans 20,400 € 19.7      
CNY-denominated intercompany loans 600   ¥ 4.6    
CAD-denominated intercompany loans 1,000     $ 1.4  
Credit Default Swap          
Derivative [Line Items]          
Notional value $ 166        
Maximum | Credit Default Swap          
Derivative [Line Items]          
Derivative term 22 months        
Maximum | Forecasted Transactions          
Derivative [Line Items]          
Derivative term 3 years        
Maximum | Commodity contracts          
Derivative [Line Items]          
Derivative term 3 years        
Credit Default Swap          
Derivative [Line Items]          
Notional value $ 167        
Credit Default Swap | Maximum          
Derivative [Line Items]          
Derivative term 24 months