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The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes.

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Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.

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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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Acquisitions & Divestitures - Purchase Price Allocation (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Acquisitions
Goodwill	$ 56,106	$ 55,643	$ 53,765
2022 Acquisitions
Acquisitions
Current assets	52
Property, plant, and equipment/noncurrent assets	2
Goodwill	649
Total assets acquired	887
Current liabilities	55
Noncurrent liabilities	35
Total liabilities assumed	89
Total purchase price	$ 798
Weighted average useful life	6 years 8 months 12 days
Goodwill deductible for tax purposes	$ 0
2022 Acquisitions \| Client relationships
Acquisitions
Intangible assets	$ 140
Weighted average useful life	7 years
2022 Acquisitions \| Completed technology
Acquisitions
Intangible assets	$ 39
2022 Acquisitions \| Completed technology \| Minimum
Acquisitions
Weighted average useful life	4 years
2022 Acquisitions \| Completed technology \| Maximum
Acquisitions
Weighted average useful life	7 years
2022 Acquisitions \| Trademarks
Acquisitions
Intangible assets	$ 5
2022 Acquisitions \| Trademarks \| Minimum
Acquisitions
Weighted average useful life	2 years
2022 Acquisitions \| Trademarks \| Maximum
Acquisitions
Weighted average useful life	3 years
Software \| 2022 Acquisitions
Acquisitions
Goodwill	$ 188
Consulting \| 2022 Acquisitions
Acquisitions
Goodwill	$ 461