SEGMENT REPORTING - Geographic Information of Net Sales (Countries Accounting for More Than 10% of Net Sales) (Details) - USD ($)
$ in Thousands |
3 Months Ended |
12 Months Ended |
Mar. 31, 2019 |
Dec. 31, 2018 |
Sep. 28, 2018 |
Jun. 29, 2018 |
Mar. 31, 2018 |
Dec. 31, 2017 |
Sep. 29, 2017 |
Jun. 30, 2017 |
Mar. 31, 2019 |
Mar. 31, 2018 |
Mar. 31, 2017 |
| Segment reporting information |
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| Net sales |
$ 6,226,124
|
$ 6,922,827
|
$ 6,662,604
|
$ 6,398,956
|
$ 6,410,887
|
$ 6,751,552
|
$ 6,270,420
|
$ 6,008,272
|
$ 26,210,511
|
$ 25,441,131
|
$ 23,862,934
|
| Operating segments |
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| Segment reporting information |
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| Net sales |
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26,210,511
|
25,441,131
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23,862,934
|
| China | Operating segments |
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| Segment reporting information |
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| Net sales |
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6,648,549
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7,449,591
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7,213,614
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| MEXICO | Operating segments |
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| Segment reporting information |
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| Net sales |
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4,538,720
|
4,361,814
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4,075,616
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| UNITED STATES | Operating segments |
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| Segment reporting information |
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| Net sales |
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3,106,222
|
2,860,242
|
2,560,300
|
| Brazil | Operating segments |
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| Segment reporting information |
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| Net sales |
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2,181,025
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2,578,466
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1,907,591
|
| MALAYSIA | Operating segments |
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| Segment reporting information |
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| Net sales |
|
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$ 1,996,152
|
$ 2,005,119
|
$ 2,267,478
|
| Net sales | China | Operating segments |
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| Segment reporting information |
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| Concentration risk percentage |
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25.00%
|
29.00%
|
30.00%
|
| Net sales | MEXICO | Operating segments |
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| Segment reporting information |
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| Concentration risk percentage |
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|
17.00%
|
17.00%
|
17.00%
|
| Net sales | UNITED STATES | Operating segments |
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| Segment reporting information |
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| Concentration risk percentage |
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|
12.00%
|
11.00%
|
11.00%
|
| Net sales | Brazil | Operating segments |
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| Segment reporting information |
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| Concentration risk percentage |
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8.00%
|
10.00%
|
8.00%
|
| Net sales | MALAYSIA | Operating segments |
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| Segment reporting information |
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| Concentration risk percentage |
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8.00%
|
8.00%
|
10.00%
|