CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended
	Sep. 27, 2019	Sep. 28, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 435	$ 213
Other comprehensive loss:
Foreign currency translation loss, net of income taxes	(25)	0
Net unrealized gain (loss) on hedging derivatives, net of income taxes	(38)	1
Net unrecognized loss on postretirement obligations, net of income taxes	0	(1)
Other comprehensive loss, net of income taxes	(63)	0
Total comprehensive income	372	213
Comprehensive income attributable to noncontrolling interests	(6)	0
Total comprehensive income attributable to L3Harris Technologies, Inc.	$ 366	$ 213