Income Taxes - Income Tax-Related Interest Accrued (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jul. 02, 2016	Jul. 02, 2016	Jul. 04, 2015
Income Tax Disclosure [Abstract]
Tax-related interest and penalties	$ 1	$ 2	$ 0
Tax-related interest and penalties accrual	$ 19	$ 19

The amount of estimated penalties and interest accrued as of the balance sheet date arising from income tax examinations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32718-109319

Name:	us-gaap_IncomeTaxExaminationPenaltiesAndInterestAccrued
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant