Segments - Pre-Tax Income Reconciliation (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Pre-tax income from continuing operations
Amortization of acquired intangible assets	$ (482)	$ (414)	$ (1,348)	$ (1,194)
Acquisition-related (charges)/income	(10)	(25)	(106)	(35)
Non-operating retirement-related (costs)/income	(2,797)	12	(2,991)	16
Stock-based compensation	(330)	(286)	(966)	(843)
Net interest excluding the Financing segment	(265)	(262)	(706)	(704)
Workforce rebalancing charges	(306)	(34)	(698)	(410)
Other-divested businesses	(4)	28	231	63
Total pre-tax income/(loss) from continuing operations	(802)	1,873	2,491	4,931
Pension settlement charge	2,700		2,725	0
Operating Segments
Pre-tax income from continuing operations
Total pre-tax income/(loss) from continuing operations	3,037	2,869	8,670	8,110
Unallocated corporate amounts and other
Pre-tax income from continuing operations
Total pre-tax income/(loss) from continuing operations	$ 355	$ (15)	$ 404	$ (72)