Income Taxes (Details) (Schedule of Deferred Tax Assets and Liabilities, Current and Noncurrent) - USD ($) $ in Millions	Dec. 29, 2018	Dec. 30, 2017
Income Tax Disclosure [Abstract]
Deferred tax assets	$ 15	$ 11
Deferred tax liabilities	(11)	(11)
Net deferred tax assets	$ 4	$ 0

Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards classified as noncurrent.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant