Intangible Assets Including Goodwill - Goodwill by Segment (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
Mar. 31, 2023	Dec. 31, 2022
Changes in Goodwill Balances
Beginning Balance	$ 55,949	$ 55,643
Goodwill Additions	141	1,934
Purchase Price Adjustments	6	(159)
Divestitures		(485)
Foreign Currency Translation and Other Adjustments	97	(984)
Ending Balance	56,193	55,949
Goodwill impairment losses	0	0
Goodwill accumulated impairment losses	0	0
Business Segments \| Software
Changes in Goodwill Balances
Beginning Balance	43,657	43,966
Goodwill Additions	141	568
Purchase Price Adjustments	1	(118)
Foreign Currency Translation and Other Adjustments	66	(760)
Ending Balance	43,865	43,657
Business Segments \| Consulting
Changes in Goodwill Balances
Beginning Balance	7,928	6,797
Goodwill Additions		1,366
Purchase Price Adjustments	5	(42)
Foreign Currency Translation and Other Adjustments	29	(192)
Ending Balance	7,962	7,928
Business Segments \| Infrastructure
Changes in Goodwill Balances
Beginning Balance	4,363	4,396
Divestitures		(1)
Foreign Currency Translation and Other Adjustments	2	(32)
Ending Balance	$ 4,366	4,363
Business Segments \| Other.
Changes in Goodwill Balances
Beginning Balance		484
Divestitures		$ (484)

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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