BUSINESS DIVESTITURES AND ASSET SALES - Income Before Income Taxes of Held for Sale or Divested Businesses (Details) - Disposal Group, Disposed of by Sale, Not Discontinued Operations - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jul. 02, 2021	Jul. 02, 2021
Electron Devices business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net income (loss) before income taxes of disposal group	$ 11	$ 30
CPS business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net income (loss) before income taxes of disposal group	27	53
Military training business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net income (loss) before income taxes of disposal group	$ 18	$ 35