REVENUE - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 25, 2020	Sep. 27, 2019	Sep. 25, 2020	Sep. 27, 2019
Disaggregation of Revenue [Line Items]
Net sales	$ 5,985,000	$ 6,088,000	$ 11,138,000	$ 12,264,000
Point in time
Disaggregation of Revenue [Line Items]
Net sales	4,602,000	4,584,000	8,372,000	9,006,000
Over time
Disaggregation of Revenue [Line Items]
Net sales	1,383,000	1,504,000	2,766,000	3,258,000
FAS
Disaggregation of Revenue [Line Items]
Net sales	3,318,000	3,583,000	6,230,000	7,491,000
FAS | Point in time
Disaggregation of Revenue [Line Items]
Net sales	2,823,000	2,987,000	5,269,000	5,956,000
FAS | Over time
Disaggregation of Revenue [Line Items]
Net sales	495,000	596,000	961,000	1,535,000
FRS
Disaggregation of Revenue [Line Items]
Net sales	2,667,000	2,505,000	4,908,000	4,773,000
FRS | Point in time
Disaggregation of Revenue [Line Items]
Net sales	1,779,000	1,597,000	3,103,000	3,050,000
FRS | Over time
Disaggregation of Revenue [Line Items]
Net sales	$ 888,000	$ 908,000	$ 1,805,000	$ 1,723,000