REVENUE - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 28, 2019	Jun. 29, 2018
Disaggregation of Revenue [Line Items]
Net sales	$ 6,175,939	$ 6,398,956
Point in time
Disaggregation of Revenue [Line Items]
Net sales	4,422,777	4,860,722
Over time
Disaggregation of Revenue [Line Items]
Net sales	1,753,162	1,538,234
HRS
Disaggregation of Revenue [Line Items]
Net sales	1,178,043	1,215,425
HRS | Point in time
Disaggregation of Revenue [Line Items]
Net sales	923,727	1,005,180
HRS | Over time
Disaggregation of Revenue [Line Items]
Net sales	254,316	210,245
IEI
Disaggregation of Revenue [Line Items]
Net sales	1,636,914	1,446,311
IEI | Point in time
Disaggregation of Revenue [Line Items]
Net sales	1,115,059	1,063,898
IEI | Over time
Disaggregation of Revenue [Line Items]
Net sales	521,855	382,413
CEC
Disaggregation of Revenue [Line Items]
Net sales	1,858,849	1,954,286
CEC | Point in time
Disaggregation of Revenue [Line Items]
Net sales	1,359,365	1,493,507
CEC | Over time
Disaggregation of Revenue [Line Items]
Net sales	499,484	460,779
CTG
Disaggregation of Revenue [Line Items]
Net sales	1,502,133	1,782,934
CTG | Point in time
Disaggregation of Revenue [Line Items]
Net sales	1,024,626	1,298,137
CTG | Over time
Disaggregation of Revenue [Line Items]
Net sales	$ 477,507	$ 484,797