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
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

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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
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

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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
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266

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Business combination - Intangible assets (Details) - USD ($) $ in Millions	Jul. 01, 2020	Sep. 30, 2021	Dec. 31, 2020
Intangible assets
Goodwill		$ 1,627	$ 1,627
Vricon
Intangible assets
Carrying Value	$ 73
Goodwill	172
Vricon \| Backlog
Intangible assets
Carrying Value	$ 21
Weighted average useful life (in years)	2 years
Vricon \| Trademarks
Intangible assets
Carrying Value	$ 1
Weighted average useful life (in years)	1 year
Vricon \| Existing technologies
Intangible assets
Carrying Value	$ 49
Weighted average useful life (in years)	9 years
Vricon \| Existing software
Intangible assets
Carrying Value	$ 2
Vricon \| Existing software \| Minimum
Intangible assets
Weighted average useful life (in years)	2 years
Vricon \| Existing software \| Maximum
Intangible assets
Weighted average useful life (in years)	3 years