SUMMARY OF ACCOUNTING POLICIES - Tangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Cash and Cash Equivalents
Cash and bank balances	$ 533,438	$ 953,549
Money market funds and time deposits	1,074,132	674,859
Cash and cash equivalents	1,607,570	1,628,408	$ 1,593,728	$ 1,587,087
Inventories
Raw materials	2,234,512	2,330,428
Work-in-progress	561,282	557,786
Finished goods	695,862	600,538
Inventories, total	3,491,656	3,488,752
Property, Plant and Equipment
Property and equipment, gross	5,513,709	5,161,963
Accumulated depreciation and amortization	(3,256,076)	(3,069,796)
Property and equipment, net	2,257,633	2,092,167
Depreciation expense associated with property and equipment	425,729	496,825	$ 424,838
Machinery and equipment
Property, Plant and Equipment
Property and equipment, gross	$ 3,187,590	2,928,903
Machinery and equipment | Minimum
Property, Plant and Equipment
Depreciable Life	3 years
Machinery and equipment | Maximum
Property, Plant and Equipment
Depreciable Life	10 years
Buildings
Property, Plant and Equipment
Depreciable Life	30 years
Property and equipment, gross	$ 1,144,798	1,067,837
Leasehold improvements
Property, Plant and Equipment
Property and equipment, gross	$ 397,340	459,926
Leasehold improvements | Maximum
Property, Plant and Equipment
Depreciable Life	30 years
Furniture, fixtures, computer equipment and software
Property, Plant and Equipment
Property and equipment, gross	$ 477,203	440,878
Furniture, fixtures, computer equipment and software | Minimum
Property, Plant and Equipment
Depreciable Life	3 years
Furniture, fixtures, computer equipment and software | Maximum
Property, Plant and Equipment
Depreciable Life	7 years
Land
Property, Plant and Equipment
Property and equipment, gross	$ 127,927	123,633
Construction-in-progress
Property, Plant and Equipment
Property and equipment, gross	$ 178,851	$ 140,786