CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 29, 2024	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 285	$ 339
Other comprehensive loss:
Foreign currency translation (loss) income, net of income taxes	(26)	7
Net unrealized (loss) income on hedging derivatives, net of income taxes	(3)	5
Other comprehensive (loss) income recognized during the period	(29)	12
Reclassification adjustments for gains included in net income	(7)	(12)
Other comprehensive loss, net of income taxes	(36)	0
Total comprehensive income	249	339
Comprehensive income attributable to noncontrolling interest	(2)	(2)
Total comprehensive income attributable to L3Harris Technologies, Inc.	$ 247	$ 337