REVENUE - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 27, 2019	Sep. 28, 2018	Sep. 27, 2019	Sep. 28, 2018
Disaggregation of Revenue [Line Items]
Net sales	$ 6,088,054	$ 6,662,604	$ 12,263,993	$ 13,061,560
Point in time
Disaggregation of Revenue [Line Items]
Net sales	4,584,003	4,703,197	9,006,779	9,563,920
Over time
Disaggregation of Revenue [Line Items]
Net sales	1,504,051	1,959,407	3,257,214	3,497,640
HRS
Disaggregation of Revenue [Line Items]
Net sales	1,188,631	1,207,971	2,366,674	2,423,396
HRS | Point in time
Disaggregation of Revenue [Line Items]
Net sales	942,113	893,141	1,865,840	1,898,321
HRS | Over time
Disaggregation of Revenue [Line Items]
Net sales	246,518	314,830	500,834	525,075
IEI
Disaggregation of Revenue [Line Items]
Net sales	1,785,568	1,565,953	3,422,482	3,012,264
IEI | Point in time
Disaggregation of Revenue [Line Items]
Net sales	1,147,976	1,089,319	2,263,035	2,153,218
IEI | Over time
Disaggregation of Revenue [Line Items]
Net sales	637,592	476,634	1,159,447	859,046
CEC
Disaggregation of Revenue [Line Items]
Net sales	1,728,597	2,140,797	3,587,446	4,095,083
CEC | Point in time
Disaggregation of Revenue [Line Items]
Net sales	1,390,059	1,519,041	2,749,423	3,012,548
CEC | Over time
Disaggregation of Revenue [Line Items]
Net sales	338,538	621,756	838,023	1,082,535
CTG
Disaggregation of Revenue [Line Items]
Net sales	1,385,258	1,747,883	2,887,391	3,530,817
CTG | Point in time
Disaggregation of Revenue [Line Items]
Net sales	1,103,855	1,201,696	2,128,481	2,499,833
CTG | Over time
Disaggregation of Revenue [Line Items]
Net sales	$ 281,403	$ 546,187	$ 758,910	$ 1,030,984