Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Mar. 31, 2012		Mar. 31, 2011		Mar. 31, 2010
Consolidated Statements Of Operations [Abstract]
Net sales	$ 29,387,656		$ 28,489,018		$ 24,009,784
Cost of sales	27,870,315		26,903,049		22,705,774
Restructuring charges					92,458
Gross profit	1,517,341		1,585,969		1,211,552
Selling, general and administrative expenses	880,636		804,890		755,064
Intangible amortization	55,896		70,913		89,615
Restructuring charges					15,070
Other charges (income), net	(19,963)		6,267		206,895
Interest and other expense, net	36,011		75,378		155,654
Income (loss) from continuing operations before income taxes	564,761		628,521		(10,746)
Provision for (benefit from) income taxes	54,116		22,176		(35,748)
Income from continuing operations	510,645		606,345		25,002
Loss from discontinued operations, net of tax	(21,880)		(10,126)		(6,408)
Net income	$ 488,765		$ 596,219		$ 18,594
Income from continuing operations:
Basic	$ 0.71		$ 0.78		$ 0.03
Diluted	$ 0.70		$ 0.77		$ 0.03
Loss from discontinued operations:
Basic	$ (0.03)		$ (0.01)		$ (0.01)
Diluted	$ (0.03)		$ (0.01)		$ (0.01)
Net income:
Basic	$ 0.68		$ 0.77		$ 0.02
Diluted	$ 0.67		$ 0.75		$ 0.02
Weighted-average shares used in computing per share amounts:
Basic	716,247		777,315		811,677
Diluted	727,807	[1]	790,192	[1]	821,112	[1]

[1] On August 2, 2010 the Company paid approximately $240.0 million to redeem its 1% Convertible Subordinated Notes upon maturity. The notes carried conversion provisions to issue shares to settle any conversion spread (excess of the conversion value over the conversion price) in stock. The conversion price was $15.525 per share (subject to certain adjustments). On the maturity date, the Company's stock price was less than the conversion spread, and therefore no shares were issued. For the year ended March 31, 2011, the conversion obligation was less than the principal portion of these notes and accordingly, no additional shares were included as ordinary share equivalents.