Other (Income) and Expense (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Other Income and Expenses [Abstract]
(Gains)/losses on foreign currency transactions	$ (107)	$ 773	$ (435)	$ 1,215
(Gains)/losses on derivative instruments	117	(601)	540	(1,043)
Interest income	(86)	(172)	(238)	(363)
Net (gains)/losses from securities and investment assets	(106)	(19)	(115)	10
Retirement-related costs/(income)	96	25	192	48
Other	(98)	(45)	(130)	(71)
Total other (income) and expense	$ (185)	$ (39)	$ (186)	$ (204)