v3.25.4
Derivative instruments - Schedule of Income and Expense Line Items (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Derivative [Line Items]      
Total revenues $ 36,751 $ 33,424 $ 28,190
Other income, net 2,651 506 2,833
Interest expense, net (2,755) (3,155) (2,875)
Cross-currency swap contract gains (losses) | Reclassification out of Accumulated Other Comprehensive Income | Cash flow hedges      
Derivative [Line Items]      
Other income, net 221 (75) 42
Interest rate swap contracts      
Derivative [Line Items]      
Gains (losses) on fair value hedging relationships, Hedged Items (182) 29 (118)
Derivatives designated as hedging instruments 238 40 205
Product sales      
Derivative [Line Items]      
Total revenues 35,148 32,026 26,910
Product sales | Foreign currency forward contracts | Reclassification out of Accumulated Other Comprehensive Income | Cash flow hedges      
Derivative [Line Items]      
Total revenues $ 10 $ 192 $ 180