Basis of Presentation and Our Divisions Basis of Presentation (Details) $ in Millions	3 Months Ended
	Mar. 21, 2015 USD ($)
Cost of Sales
Prior Period Reclassification Adjustment [Line Items]
Prior Period Reclassification Adjustment	$ 61
Gross Profit and Selling, General and Administrative Expenses
Prior Period Reclassification Adjustment [Line Items]
Prior Period Reclassification Adjustment	$ (61)