Accounts Receivable and Finance Receivables - Other information regarding finance receivables (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Jan. 02, 2016
Summary of financing vehicles
Percentage of internationally based finance receivables	61.00%	62.00%
Percentage of US based finance receivables	39.00%	38.00%
Pledged Assets Finance Receivable Pledged as Collateral	$ 411	$ 493
Value of debt collateralized	$ 244	$ 352