Other Comprehensive Income - Components of Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Sep. 30, 2017	Oct. 01, 2016	Jul. 01, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]
Comprehensive income	$ 487,799	$ 247,065	$ 1,237,884
Before Tax Amount
Total other comprehensive income	115,402	(70,696)
Tax
Total other comprehensive income	(4,757)	6,126
Net of Tax Amount
Total other comprehensive income (loss)	120,159	(76,822)	$ 95,381
Pension and other postretirement benefit plans: | Operating expenses
Before Tax Amount
Reclassification adjustments, before tax	11,170	16,303
Tax
Amortization of prior service cost	4,289	5,023
Net of Tax Amount
Amortization of prior service cost	6,881	11,280
Amortization of prior service cost
Net of Tax Amount
Amortization of prior service cost	1,484	1,752
Amortization of prior service cost | Operating expenses
Before Tax Amount
Reclassification adjustments, before tax	2,409	2,844
Tax
Amortization of prior service cost	925	1,092
Net of Tax Amount
Amortization of prior service cost	1,484	1,752
Amortization of actuarial loss (gain), net
Net of Tax Amount
Amortization of prior service cost	5,397	8,790
Amortization of actuarial loss (gain), net | Operating expenses
Before Tax Amount
Reclassification adjustments, before tax	8,761	12,721
Tax
Amortization of prior service cost	3,364	3,931
Net of Tax Amount
Amortization of prior service cost	5,397	8,790
Prior service cost arising in current year
Net of Tax Amount
Amortization of prior service cost		738
Prior service cost arising in current year | Operating expenses
Before Tax Amount
Reclassification adjustments, before tax		738
Tax
Amortization of prior service cost		0
Net of Tax Amount
Amortization of prior service cost		738
Foreign currency translation:
Before Tax Amount
Other comprehensive income before reclassifications, before tax	121,329	(89,553)
Tax
Foreign currency translation adjustment	0	0
Net of Tax Amount
Foreign currency translation adjustment	121,329	(89,553)
Amortization of cash flow hedges
Before Tax Amount
Other comprehensive income before reclassifications, before tax	3,406
Tax
Foreign currency translation adjustment	1,203
Net of Tax Amount
Amortization of prior service cost	1,770	1,770
Foreign currency translation adjustment	2,203
Amortization of cash flow hedges | Interest expense
Before Tax Amount
Reclassification adjustments, before tax	2,873
Other comprehensive income before reclassifications, before tax		2,873
Tax
Amortization of prior service cost	1,103
Foreign currency translation adjustment		1,103
Net of Tax Amount
Amortization of prior service cost	1,770
Foreign currency translation adjustment		1,770
Change in net investment hedges
Before Tax Amount
Other comprehensive income before reclassifications, before tax	(23,376)	(319)
Tax
Foreign currency translation adjustment	(11,352)	0
Net of Tax Amount
Foreign currency translation adjustment	$ (12,024)	$ (319)