Income Taxes Major Tax Legislation (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2017	Dec. 30, 2018	Dec. 31, 2017	Jan. 01, 2017	Jan. 03, 2016
Major Tax Legislation [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent			35.00%
Income tax benefit (provision)	$ 121,649		$ 93,010	$ (72,066)	$ (94,149)
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount			164,893	$ 0	$ 0
Forecast
Major Tax Legislation [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent		21.00%
Tax Act
Major Tax Legislation [Line Items]
Income tax benefit (provision)			140,379
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount			164,893
Expense (benefit) International-Related Provisions			$ 22,209