v3.25.2
Derivative Financial Instruments - Effect of Hedge Activity on Income and Expense (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Derivative Instruments, Gain (Loss)        
Gains/(losses) of total hedge activity $ 601 $ (140) $ 1,043 $ (427)
Cost of services        
Derivative Instruments, Gain (Loss)        
Gains/(losses) of total hedge activity (4) 9 (5) 14
Cost of sales        
Derivative Instruments, Gain (Loss)        
Gains/(losses) of total hedge activity (5) 15 2 27
Cost of financing        
Derivative Instruments, Gain (Loss)        
Gains/(losses) of total hedge activity 0 (4) 1 (7)
SG&A expense        
Derivative Instruments, Gain (Loss)        
Gains/(losses) of total hedge activity 114 11 83 85
Other (income) and expense        
Derivative Instruments, Gain (Loss)        
Gains/(losses) of total hedge activity 601 (140) 1,043 (427)
Interest expense        
Derivative Instruments, Gain (Loss)        
Gains/(losses) of total hedge activity $ 3 $ (19) $ 5 $ (34)