Business Combination - Identifiable Intangible Assets Acquired (Details) - L3Harris - USD ($) $ in Millions	9 Months Ended
	Oct. 02, 2020	Jul. 03, 2020	Sep. 27, 2019
Business Acquisition [Line Items]
Weighted Average Amortization Period	13 years
Total identifiable intangible assets subject to amortization	$ 6,634
Total identifiable intangible assets	8,458	$ 8,458	$ 6,768
Trade names
Business Acquisition [Line Items]
Total identifiable intangible assets not subject to amortization	1,803
In-process research and development
Business Acquisition [Line Items]
Total identifiable intangible assets not subject to amortization	$ 21
Customer relationships | Governmental
Business Acquisition [Line Items]
Weighted Average Amortization Period	14 years
Total identifiable intangible assets subject to amortization	$ 5,082
Customer relationships | Commercial
Business Acquisition [Line Items]
Weighted Average Amortization Period	15 years
Total identifiable intangible assets subject to amortization	$ 860
Contract backlog
Business Acquisition [Line Items]
Weighted Average Amortization Period	3 years
Total identifiable intangible assets subject to amortization	$ 19
Trade names
Business Acquisition [Line Items]
Weighted Average Amortization Period	9 years
Total identifiable intangible assets subject to amortization	$ 123
Developed technologies
Business Acquisition [Line Items]
Weighted Average Amortization Period	7 years
Total identifiable intangible assets subject to amortization	$ 550