CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS (Unaudited) - USD ($) shares in Millions, $ in Millions		3 Months Ended
		Mar. 29, 2024	Mar. 31, 2023
Income Statement [Abstract]
Revenue		$ 5,211	$ 4,471
Cost of revenue		(3,863)	(3,305)
General and administrative expenses		(970)	(773)
Operating income		378	393
Non-service FAS pension income and other, net	[1]	88	82
Interest expense, net		(176)	(102)
Income from continuing operations before income taxes		290	373
Income taxes		(5)	(34)
Net income		285	339
Noncontrolling interests, net of income taxes		(2)	(2)
Net income attributable to L3Harris Technologies, Inc.		$ 283	$ 337
Net income per common share attributable to L3Harris Technologies, Inc. common shareholders
Basic (in dollars per share)		$ 1.49	$ 1.77
Diluted (in dollars per share)		$ 1.48	$ 1.76
Basic weighted-average common shares outstanding (in shares)		189.8	190.2
Diluted weighted-average common shares outstanding (in shares)		190.8	191.2

[1] “FAS” is defined as Financial Accounting Standards.