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Financial Instruments - Narrative (Details)
$ in Millions, € in Billions, ¥ in Billions
3 Months Ended
Mar. 31, 2024
USD ($)
derivative
Mar. 31, 2024
EUR (€)
Mar. 31, 2024
CNY (¥)
Dec. 31, 2023
USD ($)
Dec. 31, 2023
EUR (€)
Derivative [Line Items]          
Different types of derivatives, number | derivative 3        
Gain on exchange rate movements $ (6,101)     $ (5,372)  
Notional value 6,206     6,865  
Designated as Hedging Instrument          
Derivative [Line Items]          
Notional value 885     1,963  
Net Investment Hedging          
Derivative [Line Items]          
Cumulative deferred gain 318        
Deferred gain during period 274        
Net Investment Hedging | Designated as Hedging Instrument          
Derivative [Line Items]          
Gain on exchange rate movements 56        
Net Investment Hedging | Designated as Hedging Instrument | Line of Credit          
Derivative [Line Items]          
Euro-denominated notes and intercompany loans 14,000 € 12.9      
CNY-denominated Intercompany loans 700   ¥ 4.7    
Interest Rate Swap          
Derivative [Line Items]          
Notional value | €         € 1.0
Settlement values 0        
Interest Rate Swap | Designated as Hedging Instrument          
Derivative [Line Items]          
Notional value $ 108     $ 1,214  
Maximum | Forecasted Transactions          
Derivative [Line Items]          
Derivative term 3 years        
Maximum | Commodity contracts          
Derivative [Line Items]          
Derivative term 3 years