Segments - Pre-Tax Income Reconciliation (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Pre-tax income from continuing operations
Amortization of acquired intangible assets	$ (561)	$ (482)	$ (1,605)	$ (1,348)
Acquisition-related charges	(29)	(10)	(118)	(106)
Non-operating retirement-related (costs)/income	(13)	(2,797)	(61)	(2,991)
Share-based compensation	(430)	(330)	(1,255)	(966)
Net interest excluding the Financing segment	(345)	(265)	(953)	(706)
Workforce rebalancing charges	(40)	(306)	(372)	(698)
Other-divested businesses	(1)	(4)	(28)	231
Total pre-tax income from continuing operations	2,430	(802)	6,185	2,491
Pension settlement charge		2,700	0	2,725
Personal Pension Plan (PPP)
Pre-tax income from continuing operations
Pension settlement charge		2,700
Operating Segments
Pre-tax income from continuing operations
Total pre-tax income from continuing operations	3,827	3,037	10,552	8,670
Unallocated corporate amounts and other
Pre-tax income from continuing operations
Total pre-tax income from continuing operations	$ 21	$ 355	$ 24	$ 404