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Intangible Assets and Goodwill Intangible Assets and Goodwill by Major Class (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Acquired Finite and Infinite-Lived Intangible Assets and Goodwill [Line Items]
Finite-Lived Intangible Assets, Gross Carrying Amount	$ 1,759	$ 1,505
Finite-Lived Intangible Assets, Accumulated Amortization	667	568	$ 400
Finite-Lived Intangible Assets, Net Carrying Amount	1,092	937
Goodwill	2,524	1,944	1,502
Intangible Assets, Gross (Including Goodwill)	4,571	3,731	$ 3,050
Intangible assets, net	3,904	3,163
In-Process Research and Development
Acquired Finite and Infinite-Lived Intangible Assets and Goodwill [Line Items]
Indefinite-lived Intangible Assets (Excluding Goodwill)	126	147
Trade Names [Member]
Acquired Finite and Infinite-Lived Intangible Assets and Goodwill [Line Items]
Indefinite-lived Intangible Assets (Excluding Goodwill)	162	135
Patented Technology [Member]
Acquired Finite and Infinite-Lived Intangible Assets and Goodwill [Line Items]
Finite-Lived Intangible Assets, Gross Carrying Amount	647	639
Finite-Lived Intangible Assets, Accumulated Amortization	371	324
Finite-Lived Intangible Assets, Net Carrying Amount	$ 276	315
Patented Technology [Member] | Minimum
Acquired Finite and Infinite-Lived Intangible Assets and Goodwill [Line Items]
Finite-Lived Intangible Asset, Useful Life	3 years
Patented Technology [Member] | Maximum
Acquired Finite and Infinite-Lived Intangible Assets and Goodwill [Line Items]
Finite-Lived Intangible Asset, Useful Life	15 years
Customer Relationships [Member]
Acquired Finite and Infinite-Lived Intangible Assets and Goodwill [Line Items]
Finite-Lived Intangible Assets, Gross Carrying Amount	$ 1,046	798
Finite-Lived Intangible Assets, Accumulated Amortization	261	219
Finite-Lived Intangible Assets, Net Carrying Amount	$ 785	579
Customer Relationships [Member] | Minimum
Acquired Finite and Infinite-Lived Intangible Assets and Goodwill [Line Items]
Finite-Lived Intangible Asset, Useful Life	5 years
Customer Relationships [Member] | Maximum
Acquired Finite and Infinite-Lived Intangible Assets and Goodwill [Line Items]
Finite-Lived Intangible Asset, Useful Life	14 years
Trade Names [Member]
Acquired Finite and Infinite-Lived Intangible Assets and Goodwill [Line Items]
Finite-Lived Intangible Assets, Gross Carrying Amount	$ 66	68
Finite-Lived Intangible Assets, Accumulated Amortization	35	25
Finite-Lived Intangible Assets, Net Carrying Amount	$ 31	$ 43
Trade Names [Member] | Minimum
Acquired Finite and Infinite-Lived Intangible Assets and Goodwill [Line Items]
Finite-Lived Intangible Asset, Useful Life	5 years
Trade Names [Member] | Maximum
Acquired Finite and Infinite-Lived Intangible Assets and Goodwill [Line Items]
Finite-Lived Intangible Asset, Useful Life	20 years

X

- Definition

Gross Carrying amount of finite-lived intangible assets, indefinite-lived intangible assets and goodwill. Goodwill is an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Intangible assets are assets, not including financial assets, lacking physical substance.

+ References

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[Line Items] for Tabular disclosure of the major classes of acquired finite and infinite-lived intangible assets and goodwill showing the amount, any significant residual value, weighted average amortization period, and other characteristics. A major class is composed of intangible assets and goodwill that can be grouped together because they are similar, either by nature or by their use in the operations of the company.

+ References

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- Definition

Useful life of finite-lived intangible 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

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

+ References

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

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

+ References

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

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Carrying amount of finite-lived intangible assets, indefinite-lived intangible assets and goodwill. Goodwill is an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Intangible assets are assets, not including financial assets, lacking physical substance.

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