Accounts Receivable and Finance Receivables (Details 4) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jan. 03, 2015 item	Dec. 28, 2013
Finance receivables categorized based on the internally assigned credit quality
Total finance receivables	$ 1,254	$ 1,483
Number of loan categories based on key credit quality indicators for individual loan	3
Performing
Finance receivables categorized based on the internally assigned credit quality
Total finance receivables	1,062	1,285
Watchlist
Finance receivables categorized based on the internally assigned credit quality
Total finance receivables	111	93
Nonaccrual
Finance receivables categorized based on the internally assigned credit quality
Total finance receivables	$ 81	$ 105
Nonaccrual as a percentage of finance receivables	6.46%	7.08%
Minimum | Nonaccrual
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