CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 29, 2017	Sep. 30, 2016	Sep. 29, 2017	Sep. 30, 2016
Income Statement [Abstract]
Net sales	$ 6,270,420	$ 6,008,525	$ 12,278,692	$ 11,885,338
Cost of sales	5,877,095	5,694,834	11,478,435	11,165,652
Gross profit	393,325	313,691	800,257	719,686
Selling, general and administrative expenses	274,149	243,943	524,960	483,489
Intangible amortization	16,376	21,986	36,277	43,584
Interest and other, net	27,554	24,632	54,430	49,031
Other charges (income), net	(143,167)	8,388	(179,332)	11,917
Income before income taxes	218,413	14,742	363,922	131,665
Provision for income taxes	13,327	17,250	34,126	28,444
Net income (loss)	$ 205,086	$ (2,508)	$ 329,796	$ 103,221
Earnings (losses) per share:
Basic (in dollars per share)	$ 0.39	$ 0.00	$ 0.62	$ 0.19
Diluted (in dollars per share)	$ 0.38	$ 0.00	$ 0.61	$ 0.19
Weighted-average shares used in computing per share amounts:
Basic (in shares)	531,313	544,055	530,790	544,353
Diluted (in shares)	536,019	544,055	536,311	549,934