Pension and Other Benefit Programs - Additional Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
Dec. 28, 2013
Minimum
Defined Benefit Plan Disclosure [Line Items]
Expected pension and postretirement medical plan contributions in fiscal 2014	$ 275
Maximum
Defined Benefit Plan Disclosure [Line Items]
Expected pension and postretirement medical plan contributions in fiscal 2014	$ 325

Amount of employer's best estimate of contributions expected to be paid to the plan in the current remaining fiscal period.

No definition available.

Name:	us-gaap_DefinedBenefitPlansEstimatedFutureEmployerContributionsInCurrentFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration