Accounts Receivable and Finance Receivables (Details 4) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 28, 2013 item	Dec. 29, 2012
Accounts Receivable and Finance Receivables
Number of loan categories based on key credit quality indicators for individual loan	3
Finance receivables categorized based on the internally assigned credit quality
Total finance receivables	$ 1,483	$ 1,934
Performing
Finance receivables categorized based on the internally assigned credit quality
Total finance receivables	1,285	1,661
Watchlist
Finance receivables categorized based on the internally assigned credit quality
Total finance receivables	93	130
Nonaccrual
Finance receivables categorized based on the internally assigned credit quality
Total finance receivables	$ 105	$ 143
Nonaccrual as a percentage of total finance receivables	7.08%	7.39%
Nonaccrual | Minimum
Finance receivables categorized based on the internally assigned credit quality
Number of months of contractual delinquency to classify accounts as nonaccrual unless such collection is not doubtful	3 months