CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 28, 2018	Sep. 29, 2017	Sep. 28, 2018	Sep. 29, 2017
Income Statement [Abstract]
Net sales	$ 6,710,604	$ 6,270,420	$ 13,134,560	$ 12,278,692
Cost of sales	6,308,303	5,877,095	12,354,405	11,478,435
Gross profit	402,301	393,325	780,155	800,257
Selling, general and administrative expenses	227,683	274,149	490,565	524,960
Intangible amortization	18,234	16,376	36,751	36,277
Interest and other, net	41,060	27,554	82,802	54,430
Other income, net	6,530	(143,167)	(80,394)	(179,332)
Income before income taxes	108,794	218,413	250,431	363,922
Provision for income taxes	21,909	13,327	47,511	34,126
Net income	$ 86,885	$ 205,086	$ 202,920	$ 329,796
Earnings per share:
Basic (in dollars per share)	$ 0.16	$ 0.39	$ 0.38	$ 0.62
Diluted (in dollars per share)	$ 0.16	$ 0.38	$ 0.38	$ 0.61
Weighted-average shares used in computing per share amounts:
Basic (in shares)	531,503	531,313	530,426	530,790
Diluted (in shares)	534,458	536,019	535,027	536,311