Accounts Receivable and Finance Receivables (Details 3) $ in Millions	6 Months Ended
	Jul. 04, 2015 USD ($) item	Jan. 03, 2015 USD ($)
Accounts Receivable and Finance Receivables
Number of loan categories based on key credit quality indicators for individual loan | item	3
Finance receivables categorized based on the internally assigned credit quality
Total finance receivables	$ 1,183	$ 1,254
Performing
Finance receivables categorized based on the internally assigned credit quality
Total finance receivables	1,014	1,062
Watchlist
Finance receivables categorized based on the internally assigned credit quality
Total finance receivables	72	111
Nonaccrual
Finance receivables categorized based on the internally assigned credit quality
Total finance receivables	$ 97	$ 81
Nonaccrual as a percentage of finance receivables	8.20%	6.46%
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