SUPPLEMENTAL GUARANTOR AND NON-GUARANTOR CONSOLIDATING FINANCIAL STATEMENTS - Statement of Operations (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Sep. 25, 2015	Jun. 26, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 26, 2014	Jun. 27, 2014	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Condensed consolidating statements of operations
Net sales	$ 5,772,698	$ 6,763,177	$ 6,316,762	$ 5,566,248	$ 5,951,600	$ 7,025,054	$ 6,528,517	$ 6,642,745	$ 24,418,885	$ 26,147,916	$ 26,108,607
Cost of sales									22,810,824	24,602,576	24,609,738
Restructuring charges									0	0	58,648
Gross profit	$ 406,337	$ 452,467	$ 396,916	$ 352,341	$ 378,817	$ 408,657	$ 377,081	$ 380,785	1,608,061	1,545,340	1,440,221
Selling, general and administrative expenses									954,890	844,473	874,796
Intangible amortization									65,965	32,035	28,892
Restructuring charges									0	0	16,663
Interest and other, net									132,531	(1,823)	119,416
Income before income taxes									454,675	670,655	400,454
Provision for income taxes									10,594	69,854	34,860
Net Income									444,081	600,801	365,594
Income from continuing operations									444,081	600,801	365,594
Eliminations
Condensed consolidating statements of operations
Net sales									(11,708,741)	(12,411,997)	(13,854,235)
Cost of sales									(11,708,741)	(12,411,997)	(13,854,235)
Equity in earnings in subsidiaries									(481,493)	(941,688)	29,885
Net Income									(481,493)	(941,688)	29,885
Income from continuing operations											29,885
Parent | Reportable legal entities
Condensed consolidating statements of operations
Intangible amortization									300	300	300
Restructuring charges											800
Interest and other, net									(191,859)	10,086	(502,028)
Income before income taxes									191,559	(10,386)	500,928
Provision for income taxes									26	0	52
Equity in earnings in subsidiaries									252,548	611,187	(135,282)
Net Income									444,081	600,801	365,594
Income from continuing operations											365,594
Guarantor Subsidiaries | Reportable legal entities
Condensed consolidating statements of operations
Net sales									16,841,405	19,016,750	18,393,436
Cost of sales									15,278,265	17,502,863	16,961,211
Restructuring charges											9,609
Gross profit									1,563,140	1,513,887	1,422,616
Selling, general and administrative expenses									330,194	258,212	250,909
Intangible amortization									3,598	3,808	4,659
Restructuring charges											(271)
Interest and other, net									1,016,302	901,059	875,119
Income before income taxes									213,046	350,808	292,200
Provision for income taxes									(41,584)	14,143	42,950
Equity in earnings in subsidiaries									(168,886)	(141,074)	(262,871)
Net Income									85,744	195,591	(13,621)
Income from continuing operations											(13,621)
Non-Guarantor Subsidiaries | Reportable legal entities
Condensed consolidating statements of operations
Net sales									19,286,221	19,543,163	21,569,406
Cost of sales									19,241,300	19,511,710	21,502,762
Restructuring charges											49,039
Gross profit									44,921	31,453	17,605
Selling, general and administrative expenses									624,696	586,261	623,887
Intangible amortization									62,067	27,927	23,933
Restructuring charges											16,134
Interest and other, net									(691,912)	(912,968)	(253,675)
Income before income taxes									50,070	330,233	(392,674)
Provision for income taxes									52,152	55,711	(8,142)
Equity in earnings in subsidiaries									397,831	471,575	368,268
Net Income									$ 395,749	$ 746,097	(16,264)
Income from continuing operations											$ (16,264)