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Intangible Assets - Schedule of Intangible Assets by Class (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 20,461	$ 21,036
Accumulated Amortization	4,812	3,394
Net Book Value	15,649	17,642
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	15,124	16,187
Accumulated Amortization	3,217	2,145
Net Book Value	11,907	14,042
Acquired software and technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,555	2,607
Accumulated Amortization	802	639
Net Book Value	1,753	1,968
Trade names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	616	620
Accumulated Amortization	154	105
Net Book Value	462	515
Capitalized software and other intangibles
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,236	942
Accumulated Amortization	400	332
Net Book Value	836	610
Purchased software
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	930	680
Accumulated Amortization	239	173
Net Book Value	$ 691	$ 507

X

- Definition

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
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-Section 50
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-Publisher FASB
-Name Accounting Standards Codification
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