Employee Benefit Plans (Net Periodic Benefit Costs) (Details) - Defined Benefit Pension Plans - USD ($) $ in Thousands	3 Months Ended
	Dec. 30, 2017	Dec. 31, 2016
U.S. Plans
Defined Benefit Plan Disclosure
Service cost	$ 5,634	$ 6,022
Interest cost	8,073	7,636
Expected return on plan assets	(13,576)	(13,628)
Amortization of prior service cost (credit)	47	47
Amortization of actuarial loss	6,902	8,419
Pension expense for defined benefit plans	7,080	8,496
Non-U.S. Plans
Defined Benefit Plan Disclosure
Service cost	1,470	1,532
Interest cost	1,055	751
Expected return on plan assets	(1,243)	(1,131)
Amortization of prior service cost (credit)	(14)	(27)
Amortization of actuarial loss	624	1,120
Pension expense for defined benefit plans	$ 1,892	$ 2,245