SUPPLEMENTAL GUARANTOR AND NON-GUARANTOR CONDENSED CONSOLIDATING FINANCIAL STATEMENTS (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Net sales	$ 7,183,442	$ 6,123,321	$ 19,384,673	$ 18,274,157
Cost of sales	6,784,823	5,778,544	18,271,470	17,205,251
Restructuring charges		98,315	35,126	98,315
Gross profit	398,619	246,462	1,078,077	970,591
Selling, general and administrative expenses	224,576	207,224	661,061	589,751
Intangible amortization	5,575	6,137	21,495	21,211
Restructuring charges		4,376	5,634	4,376
Interest and other, net	14,743	(17,089)	48,028	(16,754)
Income from continuing operations before income taxes	153,725	45,814	341,859	372,007
Provision for (benefit from) income taxes	8,568	(8,782)	19,240	20,189
Income from continuing operations	145,157	54,596	322,619	351,818
Loss from discontinued operations, net of tax		(7,248)		(25,451)
Net income (loss)	145,157	47,348	322,619	326,367
Parent
Intangible amortization	75	75	225	225
Restructuring charges			800
Interest and other, net	(277,297)	(151,320)	(489,834)	(581,990)
Income from continuing operations before income taxes	277,222	151,245	488,809	581,765
Provision for (benefit from) income taxes	26	833	37	833
Equity in earnings in subsidiaries	(132,039)	(103,064)	(166,153)	(254,565)
Income from continuing operations		47,348		326,367
Net income (loss)	145,157	47,348	322,619	326,367
Guarantor Subsidiaries
Net sales	4,641,981	3,687,858	12,154,405	11,407,584
Cost of sales	4,290,813	3,369,715	11,109,343	10,316,417
Restructuring charges		4,360	1,293	4,360
Gross profit	351,168	313,783	1,043,769	1,086,807
Selling, general and administrative expenses	46,081	47,150	146,339	141,033
Intangible amortization	1,018	1,859	3,055	6,395
Restructuring charges		173	2,401	173
Interest and other, net	353,089	335,509	904,039	666,887
Income from continuing operations before income taxes	(49,020)	(70,908)	(12,065)	272,319
Provision for (benefit from) income taxes	1,834	2,446	4,019	4,894
Equity in earnings in subsidiaries	20,020	(30,044)	(59,167)	(160,692)
Income from continuing operations		(103,398)		106,733
Net income (loss)	(30,834)	(103,398)	(75,251)	106,733
Non-Guarantor Subsidiaries
Net sales	7,054,467	4,734,165	17,173,465	13,807,774
Cost of sales	7,007,016	4,707,531	17,105,324	13,830,035
Restructuring charges		93,955	33,833	93,955
Gross profit	47,451	(67,321)	34,308	(116,216)
Selling, general and administrative expenses	178,495	160,074	514,722	448,718
Intangible amortization	4,482	4,203	18,215	14,591
Restructuring charges		4,203	2,433	4,203
Interest and other, net	(61,049)	(201,278)	(366,177)	(101,651)
Income from continuing operations before income taxes	(74,477)	(34,523)	(134,885)	(482,077)
Provision for (benefit from) income taxes	6,708	(12,061)	15,184	14,462
Equity in earnings in subsidiaries	49,314	48,389	90,540	286,587
Income from continuing operations		25,927		(209,952)
Loss from discontinued operations, net of tax		(7,248)		(25,451)
Net income (loss)	(31,871)	18,679	(59,529)	(235,403)
Eliminations
Net sales	(4,513,006)	(2,298,702)	(9,943,197)	(6,941,201)
Cost of sales	(4,513,006)	(2,298,702)	(9,943,197)	(6,941,201)
Equity in earnings in subsidiaries	62,705	84,719	134,780	128,670
Income from continuing operations		84,719		128,670
Net income (loss)	$ 62,705	$ 84,719	$ 134,780	$ 128,670