Accumulated Other Comprehensive Income (Loss) (Activity and Classification of Derivative Deferral in AOCI) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Oct. 01, 2016
Derivative Instruments, Gain (Loss)
Net actuarial gain (loss) during period	$ 69,984	$ (110,856)
Tax effect - Retirement liability	(24,762)	38,762
Net deferral in AOCIL of retirement liability	45,222	(72,094)
Net gain (loss) - Derivatives	(1,650)	(5,074)
Tax effect- Derivatives	572	847
Net deferral in AOCIL of derivatives	(1,078)	(4,227)
Sales | Foreign Currency Contracts
Derivative Instruments, Gain (Loss)
Net deferral in AOCIL of derivatives (effective portion)	(207)	(3,829)
Cost of Sales | Foreign Currency Contracts
Derivative Instruments, Gain (Loss)
Net deferral in AOCIL of derivatives (effective portion)	(2,115)	(1,370)
Interest Expense | Interest Rate Swaps
Derivative Instruments, Gain (Loss)
Net deferral in AOCIL of derivatives (effective portion)	$ 672	$ 125