ACQUISITIONS, DIVESTITURES AND ASSET SALES - Sale Price and Net Cash Proceeds of Completed Divestitures (Details) - Disposal Group, Disposed of by Sale, Not Discontinued Operations $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash price on sale of business	$ 1,783
Net Cash Proceeds	1,727
Narda-MITEQ business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash price on sale of business	75
Net Cash Proceeds	76
ESSCO business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash price on sale of business	55
Net Cash Proceeds	53
Electron Devices business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash price on sale of business	185
Net Cash Proceeds	173
VSE disposal group
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash price on sale of business	20
Net Cash Proceeds	19
CPS business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash price on sale of business	398
Net Cash Proceeds	347
Military training business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash price on sale of business	1,050
Net Cash Proceeds	$ 1,059