FINANCIAL INSTRUMENTS - Aggregate Notional Amounts (Details) - 12 months ended Mar. 31, 2019 € in Thousands, ₪ in Thousands, ₨ in Thousands, ¥ in Thousands, £ in Thousands, kr in Thousands, RM in Thousands, R$ in Thousands, Ft in Thousands, $ in Thousands, $ in Thousands, $ in Thousands, $ in Thousands, in Thousands	USD ($)	INR (₨)	ILS (₪)	MYR (RM)	CAD ($)	MXN ($)	EUR (€)	SGD ($)	SEK (kr)	RON ( )	BRL (R$)	GBP (£)	CNY (¥)	HUF (Ft)
Notional amount
Deferred gains	$ 200
Other Foreign Currency Contracts
Notional amount
Notional Contract Value	7,800,000
Buy | Other Foreign Currency Contracts
Notional amount
Notional Contract Value	4,343,832
Sell | Other Foreign Currency Contracts
Notional amount
Notional Contract Value	3,482,581
Derivatives not designated as hedging instruments | Buy | Other Foreign Currency Contracts
Notional amount
Notional Contract Value	3,360,548
Derivatives not designated as hedging instruments | Buy | Other Foreign Currency Contracts | CNY
Notional amount
Notional Contract Value	466,085												¥ 3,132,409
Derivatives not designated as hedging instruments | Buy | Other Foreign Currency Contracts | EUR
Notional amount
Notional Contract Value	2,019,883						€ 1,793,103
Derivatives not designated as hedging instruments | Buy | Other Foreign Currency Contracts | HUF
Notional amount
Notional Contract Value	184,727													Ft 52,526,969
Derivatives not designated as hedging instruments | Buy | Other Foreign Currency Contracts | ILS
Notional amount
Notional Contract Value	44,265													160,775
Derivatives not designated as hedging instruments | Buy | Other Foreign Currency Contracts | MXN
Notional amount
Notional Contract Value	153,416					$ 2,969,832
Derivatives not designated as hedging instruments | Buy | Other Foreign Currency Contracts | MYR
Notional amount
Notional Contract Value	111,989			RM 455,920
Derivatives not designated as hedging instruments | Buy | Other Foreign Currency Contracts | BRL
Notional amount
Notional Contract Value	0										R$ 0
Derivatives not designated as hedging instruments | Buy | Other Foreign Currency Contracts | CAD
Notional amount
Notional Contract Value	55,511				$ 74,484
Derivatives not designated as hedging instruments | Buy | Other Foreign Currency Contracts | GBP
Notional amount
Notional Contract Value	51,590											£ 39,047
Derivatives not designated as hedging instruments | Buy | Other Foreign Currency Contracts | INR
Notional amount
Notional Contract Value	56,930	₨ 3,921,500
Derivatives not designated as hedging instruments | Buy | Other Foreign Currency Contracts | SEK
Notional amount
Notional Contract Value	76,470								kr 706,435
Derivatives not designated as hedging instruments | Buy | Other Foreign Currency Contracts | SGD
Notional amount
Notional Contract Value	61,822							$ 83,800
Derivatives not designated as hedging instruments | Buy | Other Foreign Currency Contracts | Other
Notional amount
Notional Contract Value	77,860
Derivatives not designated as hedging instruments | Sell | Other Foreign Currency Contracts
Notional amount
Notional Contract Value	3,467,286
Derivatives not designated as hedging instruments | Sell | Other Foreign Currency Contracts | CNY
Notional amount
Notional Contract Value	68,230												458,795
Derivatives not designated as hedging instruments | Sell | Other Foreign Currency Contracts | EUR
Notional amount
Notional Contract Value	2,303,762						2,043,034
Derivatives not designated as hedging instruments | Sell | Other Foreign Currency Contracts | HUF
Notional amount
Notional Contract Value	191,402													54,425,127
Derivatives not designated as hedging instruments | Sell | Other Foreign Currency Contracts | ILS
Notional amount
Notional Contract Value	21,365													77,600
Derivatives not designated as hedging instruments | Sell | Other Foreign Currency Contracts | MXN
Notional amount
Notional Contract Value	107,352					2,078,128
Derivatives not designated as hedging instruments | Sell | Other Foreign Currency Contracts | MYR
Notional amount
Notional Contract Value	62,688			255,210
Derivatives not designated as hedging instruments | Sell | Other Foreign Currency Contracts | BRL
Notional amount
Notional Contract Value	246,092										R$ 972,000
Derivatives not designated as hedging instruments | Sell | Other Foreign Currency Contracts | CAD
Notional amount
Notional Contract Value	99,042				$ 132,895
Derivatives not designated as hedging instruments | Sell | Other Foreign Currency Contracts | GBP
Notional amount
Notional Contract Value	40,857											£ 30,869
Derivatives not designated as hedging instruments | Sell | Other Foreign Currency Contracts | INR
Notional amount
Notional Contract Value	150,312	₨ 10,356,508
Derivatives not designated as hedging instruments | Sell | Other Foreign Currency Contracts | SEK
Notional amount
Notional Contract Value	81,479								kr 755,275
Derivatives not designated as hedging instruments | Sell | Other Foreign Currency Contracts | SGD
Notional amount
Notional Contract Value	37,093							50,280
Derivatives not designated as hedging instruments | Sell | Other Foreign Currency Contracts | Other
Notional amount
Notional Contract Value	57,612
Cash Flow Hedges | Buy | Other Foreign Currency Contracts
Notional amount
Notional Contract Value	983,284
Cash Flow Hedges | Buy | Other Foreign Currency Contracts | CNY
Notional amount
Notional Contract Value	328,349												2,207,000
Cash Flow Hedges | Buy | Other Foreign Currency Contracts | EUR
Notional amount
Notional Contract Value	55,445						48,763
Cash Flow Hedges | Buy | Other Foreign Currency Contracts | HUF
Notional amount
Notional Contract Value	120,981													34,401,000
Cash Flow Hedges | Buy | Other Foreign Currency Contracts | ILS
Notional amount
Notional Contract Value	49,833		₪ 181,000
Cash Flow Hedges | Buy | Other Foreign Currency Contracts | MXN
Notional amount
Notional Contract Value	212,987					4,123,000
Cash Flow Hedges | Buy | Other Foreign Currency Contracts | MYR
Notional amount
Notional Contract Value	70,276			286,100
Cash Flow Hedges | Buy | Other Foreign Currency Contracts | PLN
Notional amount
Notional Contract Value	37,841			144,500
Cash Flow Hedges | Buy | Other Foreign Currency Contracts | RON
Notional amount
Notional Contract Value	58,365									247,000
Cash Flow Hedges | Buy | Other Foreign Currency Contracts | SGD
Notional amount
Notional Contract Value	31,354							42,500
Cash Flow Hedges | Buy | Other Foreign Currency Contracts | Other
Notional amount
Notional Contract Value	17,853
Cash Flow Hedges | Sell | Other Foreign Currency Contracts
Notional amount
Notional Contract Value	15,295
Cash Flow Hedges | Sell | Other Foreign Currency Contracts | CNY
Notional amount
Notional Contract Value	0												¥ 0
Cash Flow Hedges | Sell | Other Foreign Currency Contracts | EUR
Notional amount
Notional Contract Value	788						€ 700
Cash Flow Hedges | Sell | Other Foreign Currency Contracts | HUF
Notional amount
Notional Contract Value	0													Ft 0
Cash Flow Hedges | Sell | Other Foreign Currency Contracts | ILS
Notional amount
Notional Contract Value	0		₪ 0
Cash Flow Hedges | Sell | Other Foreign Currency Contracts | MXN
Notional amount
Notional Contract Value	0					$ 0
Cash Flow Hedges | Sell | Other Foreign Currency Contracts | MYR
Notional amount
Notional Contract Value	7,418			30,200
Cash Flow Hedges | Sell | Other Foreign Currency Contracts | PLN
Notional amount
Notional Contract Value	0			RM 0
Cash Flow Hedges | Sell | Other Foreign Currency Contracts | RON
Notional amount
Notional Contract Value	0									0
Cash Flow Hedges | Sell | Other Foreign Currency Contracts | SGD
Notional amount
Notional Contract Value	0							$ 0
Cash Flow Hedges | Sell | Other Foreign Currency Contracts | Other
Notional amount
Notional Contract Value	$ 7,089