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

No definition available.

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- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
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-Publisher FASB
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- Details

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- Details

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Acquisitions & Divestitures - Goodwill and Restricted Cash (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020	Dec. 31, 2019
Acquisitions
Goodwill	$ 61,378	$ 59,617	$ 58,222
Turbonomic
Acquisitions
Weighted average useful life	8 years 10 months 24 days
Goodwill	$ 1,439
Estimated percent of goodwill deductible for tax purposes	0.00%
Other Acquisitions 2021
Acquisitions
Weighted average useful life	6 years 6 months
Goodwill	$ 912
Estimated percent of goodwill deductible for tax purposes	9.00%
Global Business Services \| Turbonomic
Acquisitions
Goodwill	$ 67
Global Business Services \| Other Acquisitions 2021
Acquisitions
Goodwill	628
Cloud & Cognitive Software \| Turbonomic
Acquisitions
Goodwill	1,372
Cloud & Cognitive Software \| Other Acquisitions 2021
Acquisitions
Goodwill	283
Global Technology Services \| Other Acquisitions 2021
Acquisitions
Goodwill	$ 2