Income Taxes - Taxes on Income (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 02, 2017	Jul. 03, 2016	Jul. 02, 2017	Jul. 03, 2016
Income Tax Contingency [Line Items]
Effective tax rate for income from continuing operations	28.40%	32.50%	28.70%	35.50%
Deferred tax benefit	$ 2
Discrete tax benefit related to change in statutory tax rates	3	$ 10	$ 7	$ 5
Belgium
Income Tax Contingency [Line Items]
Discrete tax benefit	$ 3		$ 38