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.

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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
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- Definition

Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
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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
-Paragraph 1
-Subparagraph (SX 210.9-03(10)(1))
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-Publisher FASB
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
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Business combination - Intangible assets of Vricon (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Jul. 01, 2020	Dec. 31, 2019	Dec. 31, 2018
Intangible assets
Goodwill	$ 1,627		$ 1,455	$ 1,455
Vricon
Intangible assets
Carrying Value	73
Goodwill		$ 172
Backlog \| Vricon
Intangible assets
Carrying Value	$ 21
Weighted average useful life (in years)	2 years
Trademarks \| Vricon
Intangible assets
Carrying Value	$ 1
Weighted average useful life (in years)	1 year
Technologies \| Vricon
Intangible assets
Carrying Value	$ 49
Weighted average useful life (in years)	9 years
Software \| Vricon
Intangible assets
Carrying Value	$ 2
Software \| Vricon \| Minimum
Intangible assets
Weighted average useful life (in years)	2 years
Software \| Vricon \| Maximum
Intangible assets
Weighted average useful life (in years)	3 years