SUPPLEMENTAL GUARANTOR AND NON-GUARANTOR CONSOLIDATED FINANCIAL STATEMENTS - Balance Sheet (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Current assets:
Cash and cash equivalents	$ 1,830,675	$ 1,607,570	$ 1,628,408	$ 1,593,728
Accounts receivable	2,192,704	2,044,757
Inventories	3,396,462	3,491,656
Other current assets	967,935	1,171,143
Total current assets	8,387,776	8,315,126
Property and equipment, net	2,317,026	2,257,633
Goodwill and other intangible assets, net	1,347,048	1,345,820
Other assets	541,513	466,402
Total assets	12,593,363	12,384,981
Current liabilities:
Bank borrowings and current portion of long-term debt	61,534	65,166
Accounts payable	4,484,908	4,248,292
Accrued payroll	344,245	353,547
Other current liabilities	1,613,940	1,905,200
Total current liabilities	6,504,627	6,572,205
Long term liabilities	3,410,460	3,207,246
Flextronics International Ltd. shareholders' equity (deficit)	2,644,533	2,570,872
Noncontrolling interest	33,743	34,658
Total shareholders' equity	2,678,276	2,605,530	2,396,250	2,201,679
Total liabilities and shareholders' equity	12,593,363	12,384,981
Eliminations
Current assets:
Inter company receivable	(33,054,463)	(27,078,842)
Total current assets	(33,054,463)	(27,078,842)
Other assets	(3,946,802)	(4,054,214)
Investment in subsidiaries	(22,644,632)	(23,978,683)
Total assets	(59,645,897)	(55,111,739)
Current liabilities:
Inter company payable	(33,054,463)	(27,078,842)
Total current liabilities	(33,054,463)	(27,078,842)
Long term liabilities	(3,946,802)	(4,054,214)
Flextronics International Ltd. shareholders' equity (deficit)	(22,644,632)	(23,978,683)
Total shareholders' equity	(22,644,632)	(23,978,683)
Total liabilities and shareholders' equity	(59,645,897)	(55,111,739)
Parent | Reportable legal entities
Current assets:
Cash and cash equivalents	561,555	734,869	608,971	638,714
Inter company receivable	10,951,993	9,105,728
Other current assets	683	2,951
Total current assets	11,514,231	9,843,548
Goodwill and other intangible assets, net	1,214	175
Other assets	2,218,599	2,249,145
Investment in subsidiaries	3,071,296	2,815,426
Total assets	16,805,340	14,908,294
Current liabilities:
Bank borrowings and current portion of long-term debt	56,177	58,836
Inter company payable	11,282,477	9,562,405
Other current liabilities	23,851	33,008
Total current liabilities	11,362,505	9,654,249
Long term liabilities	2,798,302	2,683,173
Flextronics International Ltd. shareholders' equity (deficit)	2,644,533	2,570,872
Total shareholders' equity	2,644,533	2,570,872
Total liabilities and shareholders' equity	16,805,340	14,908,294
Guarantor Subsidiaries | Reportable legal entities
Current assets:
Cash and cash equivalents	169,083	148,201	168,272	210,462
Accounts receivable	875,842	729,331
Inventories	1,523,578	1,482,410
Inter company receivable	7,527,058	5,568,392
Other current assets	181,602	180,842
Total current assets	10,277,163	8,109,176
Property and equipment, net	601,918	553,072
Goodwill and other intangible assets, net	119,255	60,895
Other assets	228,343	267,034
Investment in subsidiaries	3,543,990	2,987,909
Total assets	14,770,669	11,978,086
Current liabilities:
Bank borrowings and current portion of long-term debt	977	946
Accounts payable	1,758,660	1,401,835
Accrued payroll	101,206	114,509
Inter company payable	9,882,088	7,999,335
Other current liabilities	776,280	869,470
Total current liabilities	12,519,211	10,386,095
Long term liabilities	2,156,994	2,063,988
Flextronics International Ltd. shareholders' equity (deficit)	94,464	(471,997)
Total shareholders' equity	94,464	(471,997)
Total liabilities and shareholders' equity	14,770,669	11,978,086
Non-Guarantor Subsidiaries | Reportable legal entities
Current assets:
Cash and cash equivalents	1,100,037	724,500	$ 851,165	$ 744,552
Accounts receivable	1,316,862	1,315,426
Inventories	1,872,884	2,009,246
Inter company receivable	14,575,412	12,404,722
Other current assets	785,650	987,350
Total current assets	19,650,845	17,441,244
Property and equipment, net	1,715,108	1,704,561
Goodwill and other intangible assets, net	1,226,579	1,284,750
Other assets	2,041,373	2,004,437
Investment in subsidiaries	16,029,346	18,175,348
Total assets	40,663,251	40,610,340
Current liabilities:
Bank borrowings and current portion of long-term debt	4,380	5,384
Accounts payable	2,726,248	2,846,457
Accrued payroll	243,039	239,038
Inter company payable	11,889,898	9,517,102
Other current liabilities	813,809	1,002,722
Total current liabilities	15,677,374	13,610,703
Long term liabilities	2,401,966	2,514,299
Flextronics International Ltd. shareholders' equity (deficit)	22,550,168	24,450,680
Noncontrolling interest	33,743	34,658
Total shareholders' equity	22,583,911	24,485,338
Total liabilities and shareholders' equity	$ 40,663,251	$ 40,610,340