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Description of Business	12 Months Ended
	Jan. 01, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business	Description of Business Teledyne Technologies Incorporated (“Teledyne” or the “Company”) provides enabling technologies for industrial growth markets that require advanced technology and high reliability. These markets include factory automation and condition monitoring, aerospace and defense, air and water quality environmental monitoring, electronics design and development, medical imaging and pharmaceutical research, oceanographic research, and deepwater energy exploration and production. Following the 2021 acquisition of FLIR Systems, Inc. (“FLIR”), the Company further evolved into a global sensing and decision-support technology company, providing specialty sensors, cameras, instrumentation, algorithms and software across the electromagnetic spectrum, as well as unmanned systems, in the subsea, land and air domains. Teledyne differentiates itself from many of our direct competitors by having a customer and Company-sponsored applied research center that augments its product development expertise. The Company believes that technological capabilities and innovation and the ability to invest in the development of new and enhanced products are critical to obtaining and maintaining leadership in the markets and industries in which it competes. The Company's businesses are aligned in four segments: Digital Imaging, Instrumentation, Aerospace and Defense Electronics and Engineered Systems.

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- Definition

The entire disclosure for the nature of an entity's business, major products or services, principal markets including location, and the relative importance of its operations in each business and the basis for the determination, including but not limited to, assets, revenues, or earnings. For an entity that has not commenced principal operations, disclosures about the risks and uncertainties related to the activities in which the entity is currently engaged and an understanding of what those activities are being directed toward.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-URI https://asc.fasb.org/topic&trid=2134479

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- References

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