Note 11 Effective Tax Rate (Details)	12 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Sep. 30, 2017
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Federal tax at statutory tax rate	21.00%	24.50%	35.00%
Tax Act impact	0.00%	165.16%	0.00%
Effect of foreign operations	9.30%	7.92%	1.89%
Permanent items	0.40%	(1.37%)	2.10%
Discrete charge for restructuring transaction	8.88%	0.00%	0.00%
Discrete benefit of foreign restructuring	0.00%	0.00%	(4.92%)
Other	0.61%	0.49%	(1.84%)
State income taxes, net of federal benefit	2.19%	1.24%	2.72%
Effective tax rate	42.38%	197.94%	34.95%