SUBSEQUENT EVENT	6 Months Ended
	Jul. 03, 2021
Subsequent Events [Abstract]
SUBSEQUENT EVENT	SUBSEQUENT EVENTOn August 2, 2021, we completed the acquisition of Enterprise Control Systems Ltd (“ECS”). ECS is a leader in the design and manufacture of highly-engineered tactical datalinks and radio frequency (“RF”) countermeasures, including counter-drone and counter-IED RF jammers. We purchased ECS for net cash proceeds of GBP 27.5 (or $38.2 at the time of payment). Under the terms of the purchase and sales agreement, the seller is eligible for additional cash consideration of up to GBP 12.5, with payment to occur in 2022 upon successful achievement of certain financial performance milestones. The post-acquisition results of ECS will be reflected within our Detection and Measurement reportable segment.