Investments Investments (Cost-Method) (Details) $ in Millions	Dec. 28, 2014 USD ($)
Investments, Debt and Equity Securities [Abstract]
Original cost	$ 4

Original amount of cost-method investments at the acquisition date.

No definition available.

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