CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 1,834	$ 1,583	$ 3,439	$ 2,511
Other comprehensive income/(loss), before tax:
Foreign currency translation adjustments	2	116	57	29
Net changes related to available-for-sale securities:
Unrealized gains/(losses) arising during the period	1	(17)	1	(1)
Reclassification of (gains)/losses to net income	0	0	0	0
Total net changes related to available-for-sale securities	1	(17)	1	(1)
Unrealized gains/(losses) on cash flow hedges:
Unrealized gains/(losses) arising during the period	103	178	279	149
Reclassification of (gains)/losses to net income	(42)	(30)	28	(152)
Total unrealized gains/(losses) on cash flow hedges	61	148	307	(3)
Retirement-related benefit plans:
Prior service costs/(credits)	0	0	0	0
Net (losses)/gains arising during the period	0	0	1	2
Curtailments and settlements	2	6	4	5
Amortization of prior service costs/(credits)	(2)	(2)	(4)	(4)
Amortization of net (gains)/losses	258	130	519	261
Total retirement-related benefit plans	259	134	520	263
Other comprehensive income/(loss), before tax	322	381	885	289
Income tax (expense)/benefit related to items of other comprehensive income	(153)	(101)	(442)	(48)
Other comprehensive income/(loss), net of tax	169	280	442	241
Total comprehensive income	$ 2,003	$ 1,863	$ 3,882	$ 2,751