Pension and Other Benefit Programs - Additional Information (Details) (USD $) In Millions, unless otherwise specified	Dec. 29, 2012
Minimum
Defined Benefit Plan Disclosure [Line Items]
Expected pension and postretirement medical plan contributions	$ 425
Maximum
Defined Benefit Plan Disclosure [Line Items]
Expected pension and postretirement medical plan contributions	$ 475

The employer's best estimate, as soon as it can be reasonably determined, of contributions expected to be paid to the plan in the current remaining fiscal period. Estimated contributions may be presented in the aggregate combining (1) contributions required by funding regulations or laws, (2) discretionary contributions, and (3) noncash contributions.

No definition available.

Name:	us-gaap_DefinedBenefitPlanEstimatedFutureEmployerContributionsInCurrentFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant