CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jul. 01, 2022	Jun. 30, 2023	Jul. 01, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 351	$ 470	$ 690	$ 945
Other comprehensive income (loss):
Foreign currency translation income (loss), net of income taxes	28	(73)	35	(76)
Net unrealized income (loss) on hedging derivatives, net of income taxes	4	(7)	9	(2)
Other comprehensive income (loss), recognized during the period	32	(80)	44	(78)
Reclassification adjustments for gains included in net income	(7)	(2)	(19)	(8)
Other comprehensive income (loss), net of income taxes	25	(82)	25	(86)
Total comprehensive income	376	388	715	859
Comprehensive (income) loss attributable to noncontrolling interest	(2)	1	(4)	1
Total comprehensive income attributable to L3Harris Technologies, Inc.	$ 374	$ 389	$ 711	$ 860