CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 29, 2014	Mar. 30, 2013	Mar. 29, 2014	Mar. 30, 2013
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (unaudited) [Abstract]
Net income	$ 149,547	$ 129,484	$ 208,218	$ 187,104
Other comprehensive income:
Net unrealized (losses) gains on cash flow hedges	(90)	331	(256)	318
Reclassification of realized losses on cash flow hedges into earnings	346	679	699	1,399
Amortization of net actuarial losses and prior service credits into earnings	955	1,199	1,910	2,398
Other comprehensive income	1,211	2,209	2,353	4,115
Total comprehensive income	$ 150,758	$ 131,693	$ 210,571	$ 191,219