Note 9 Restructuring and Related Activities (Details) $ in Thousands	12 Months Ended
	Sep. 29, 2018 USD ($)	Sep. 30, 2017 USD ($)	Oct. 01, 2016 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Current	$ 24,200
Restructuring costs	29,146	$ 1,339	$ 2,701
IMS
Restructuring Cost and Reserve [Line Items]
Restructuring costs	12,200
CPS [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs	16,900
Q1 FY18 Plan [Member]
Restructuring Cost and Reserve [Line Items]
Expected cost prior to reimbursement	35,000
Restructuring Expense (Recovery) prior to reimbursement	$ 31,409
Initiation Date	Dec. 30, 2017
Completion Date	Dec. 31, 2019
Expected Number of Positions Eliminated	2,900
Severance reimbursement	$ (10,000)
Other Receivables	8,000
Expected Cost	25,000
Restructuring costs	21,409
Q1 FY18 Plan [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Expected Cost	27,700
Restructuring costs	26,425
Q1 FY18 Plan [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Expected Cost	7,300
Restructuring costs	4,984
Other plans [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs	7,737
Other plans [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs	3,200
Other plans [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 4,500