CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Statement of Comprehensive Income [Abstract]
Net income	$ 1,055	$ 1,605
Other comprehensive income/(loss), before tax:
Foreign currency translation adjustments	(343)	55
Net changes related to available-for-sale securities:
Unrealized gains/(losses) arising during the period	8	0
Reclassification of (gains)/losses to net income	0	0
Total net changes related to available-for-sale securities	8	0
Unrealized gains/(losses) on cash flow hedges:
Unrealized gains/(losses) arising during the period	(58)	176
Reclassification of (gains)/losses to net income	(323)	70
Total unrealized gains/(losses) on cash flow hedges	(382)	246
Retirement-related benefit plans:
Prior service costs/(credits)	0	0
Net (losses)/gains arising during the period	0	1
Curtailments and settlements	2	2
Amortization of prior service costs/(credits)	(2)	(2)
Amortization of net (gains)/losses	151	261
Total retirement-related benefit plans	151	262
Other comprehensive income/(loss), before tax	(566)	563
Income tax (expense)/benefit related to items of other comprehensive income	259	(289)
Other comprehensive income/(loss), net of tax	(306)	273
Total comprehensive income	$ 749	$ 1,878