v3.20.4

Identified Intangible Assets - Summary of Identified Intangible Assets (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Cost	$ 9,249	$ 9,384	$ 9,183
Finite-lived intangible assets, accumulated amortization	(7,007)	(5,764)	$ (4,716)
Marketing-related
Finite-Lived Intangible Assets [Line Items]
Cost	81	81
Finite-lived intangible assets, accumulated amortization	(81)	(67)
Customer-related
Finite-Lived Intangible Assets [Line Items]
Cost	957	968
Finite-lived intangible assets, accumulated amortization	(381)	(340)
Technology-based
Finite-Lived Intangible Assets [Line Items]
Cost	8,064	8,063
Finite-lived intangible assets, accumulated amortization	(6,545)	(5,357)
In-process R&D (IPR&D)
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets, gross carrying amount	$ 147	$ 272

X

- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 928
-SubTopic 340
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004

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- Definition

Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
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