Income Taxes (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 28, 2015	Jun. 29, 2014	Dec. 28, 2014
Income Tax Disclosure [Abstract]
International sales percent	70.00%
Effective tax rate	21.80%	20.30%
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	$ 7
Unrecognized tax benefits	75		$ 71
Unrecognized tax benefits that would impact effective tax rate	63		58
Decrease in unrecognized tax benefit, reasonably possible	28
Unrecognized tax benefits, interest on income taxes accrued	13		13
Unrecognized tax benefits, income tax penalties accrued	$ 7		$ 8