REVENUE - Contract Assets (Details) - USD ($) $ in Thousands	12 Months Ended
Mar. 31, 2019	Apr. 01, 2018
Contract Assets [Roll Forward]
Beginning balance, April 1, 2018	$ 0
Cumulative effect adjustment at April 1, 2018	451,287
Revenue recognized	7,169,638
Amounts collected or invoiced	(7,404,723)
Ending balance, March 31, 2019	216,202
Contract liabilities	$ 271,800	$ 265,300

Contract Assets [Roll Forward]

No definition available.

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- Definition

Contract With Customer, Asset, Revenue Recognized

+ References

No definition available.

+ Details

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- Definition

Amount of increase (decrease) in revenue recognized for cumulative catch-up adjustment from change in measure of progress which increases (decreases) right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130551-203045

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- Definition

Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

+ References

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- Definition

Amount of decrease in right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time from transfer to receivable due to right to consideration becoming unconditional.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

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