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Amount of accumulated impairment loss for asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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GOODWILL AND INTANGIBLE ASSETS - Narrative (Details) $ in Millions	3 Months Ended		12 Months Ended
	Apr. 03, 2026 USD ($) business reporting_unit segment	Mar. 28, 2025 USD ($)	Jan. 02, 2026 USD ($) segment reporting_unit
Finite-Lived Intangible Assets [Line Items]
Number of reportable segments \| segment	3		4
Amortization expense	$ 174	$ 194
Number of reporting units \| reporting_unit	5		7
Number of reporting units reassigned \| reporting_unit	3
Space And Airborne Systems Reporting Unit
Finite-Lived Intangible Assets [Line Items]
Number of businesses combined \| business	2
Targeting And Sensor Systems And Defense Electronics Reporting Unit
Finite-Lived Intangible Assets [Line Items]
Number of businesses combined \| business	2
Broadband Reporting Unit
Finite-Lived Intangible Assets [Line Items]
Number of businesses combined \| business	2
SMS
Finite-Lived Intangible Assets [Line Items]
Accumulated goodwill impairment loss	$ 120		$ 120
CSD
Finite-Lived Intangible Assets [Line Items]
Accumulated goodwill impairment loss	431		431
MSL
Finite-Lived Intangible Assets [Line Items]
Accumulated goodwill impairment loss	$ 337		$ 337