Employee Benefit Plans, Pensions, and Other Retiree Benefits (401(k) Plan) (Details)	12 Months Ended
Sep. 29, 2017
Compensation and Retirement Disclosure [Abstract]
Minimum age requirement	21 years
Contribution percentage of employee earnings to retirement plan	4.00%

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

No definition available.

Name:	us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration