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Goodwill and Intangible Assets Gross carrying value, accumulated amortization and net carrying value of intangible assets (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	$ 16,311	$ 15,421
Finite-Lived Intangible Assets, Accumulated Amortization	(5,455)	(5,072)
Intangible Assets, Net (Excluding Goodwill)	10,856	10,349
Customer-Related Intangible Assets [Member]
Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	13,428	12,968
Finite-Lived Intangible Assets, Accumulated Amortization	(4,575)	(4,319)
Intangible Assets, Net (Excluding Goodwill)	8,853	8,649
Trademarks and Technology [Member]
Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	1,597	1,186
Finite-Lived Intangible Assets, Accumulated Amortization	(624)	(525)
Intangible Assets, Net (Excluding Goodwill)	973	661
Trademarks and Trade Names [Member]
Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	680	726
Finite-Lived Intangible Assets, Accumulated Amortization	0	0
Intangible Assets, Net (Excluding Goodwill)	680	726
Other Intangible Assets [Member]
Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	606	541
Finite-Lived Intangible Assets, Accumulated Amortization	(256)	(228)
Intangible Assets, Net (Excluding Goodwill)	$ 350	$ 313

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)
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Amount before accumulated amortization of intangible assets, excluding goodwill.

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

+ References

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