CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Apr. 01, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 339	$ 475
Other comprehensive income:
Foreign currency translation gain (loss), net of income taxes	7	(3)
Net unrealized gain on hedging derivatives, net of income taxes	5	5
Other comprehensive income, recognized during the period	12	2
Reclassification adjustments for gains included in net income	(12)	(6)
Other comprehensive loss, net of income taxes:	0	(4)
Total comprehensive income	339	471
Comprehensive income attributable to noncontrolling interests	(2)	0
Total comprehensive income attributable to L3Harris Technologies, Inc.	$ 337	$ 471