REVENUE - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 29, 2018	Jun. 30, 2017
Disaggregation of Revenue [Line Items]
Net sales	$ 6,423,956	$ 6,008,272
Point in time
Disaggregation of Revenue [Line Items]
Net sales	4,863,222
Over time
Disaggregation of Revenue [Line Items]
Net sales	1,560,734
HRS
Disaggregation of Revenue [Line Items]
Net sales	1,215,425
HRS | Point in time
Disaggregation of Revenue [Line Items]
Net sales	1,005,180
HRS | Over time
Disaggregation of Revenue [Line Items]
Net sales	210,245
CTG
Disaggregation of Revenue [Line Items]
Net sales	1,807,934
CTG | Point in time
Disaggregation of Revenue [Line Items]
Net sales	1,300,637
CTG | Over time
Disaggregation of Revenue [Line Items]
Net sales	507,297
IEI
Disaggregation of Revenue [Line Items]
Net sales	1,446,311
IEI | Point in time
Disaggregation of Revenue [Line Items]
Net sales	1,063,898
IEI | Over time
Disaggregation of Revenue [Line Items]
Net sales	382,413
CEC
Disaggregation of Revenue [Line Items]
Net sales	1,954,286
CEC | Point in time
Disaggregation of Revenue [Line Items]
Net sales	1,493,507
CEC | Over time
Disaggregation of Revenue [Line Items]
Net sales	$ 460,779