Income Taxes (Details 1) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Oct. 01, 2016	Sep. 30, 2017	Oct. 01, 2016
Effective Income Tax Rate Reconciliation, Percent [Line Items]
Income tax holiday amount			$ 18	$ 16
Income tax holiday per share benefit			$ 0.23	$ 0.20
Effective income tax rate	11.50%	14.20%	10.10%	12.70%
United States [Member]
Effective Income Tax Rate Reconciliation, Percent [Line Items]
Marginal effective income tax rate			37.50%
Ireland [Member]
Effective Income Tax Rate Reconciliation, Percent [Line Items]
Marginal effective income tax rate			12.50%
United Kingdom [Member]
Effective Income Tax Rate Reconciliation, Percent [Line Items]
Marginal effective income tax rate			19.25%
Singapore [Member]
Effective Income Tax Rate Reconciliation, Percent [Line Items]
Marginal effective income tax rate			0.00%
Statutory tax rate			17.00%
ASU 2016-09 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Quantification of adoption of new accounting pronouncement or change in accounting principle	$ (3)		$ (14)
Percentage point change in effective tax rate relating to new accounting pronouncement or change in accounting principle	(1.7)		(3.4)