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Acquisitions - Additional Information (Details) $ in Millions	12 Months Ended
	Dec. 31, 2020 USD ($) Acquisition	Dec. 31, 2019 USD ($) Acquisition
Business Acquisition [Line Items]
Business acquisition	$ 35	$ 17
Goodwill	2,691	2,642
ADI Global Distribution
Business Acquisition [Line Items]
Goodwill	$ 654	639
ADI Global Distribution | Herman ProAV
Business Acquisition [Line Items]
Number of acquisitions | Acquisition	1
Business acquisition	$ 36
Goodwill	4
Business acquisition, intangible assets acquired	18
Products & Solutions
Business Acquisition [Line Items]
Goodwill	$ 2,037	$ 2,004
Products & Solutions | 2019 Acquisitions
Business Acquisition [Line Items]
Number of acquisitions | Acquisition		3
Business acquisition		$ 17
Goodwill		10
Business acquisition, intangible assets acquired		$ 7

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-Topic 805
-SubTopic 20
-Section 50
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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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-Topic 942
-SubTopic 210
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