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Significant Accounting Policies (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jul. 01, 2017 | Jul. 02, 2016 | Jul. 01, 2017 | Jul. 02, 2016
New Accounting Pronouncement, Early Adoption [Line Items] |  |  |  |
Income tax benefit | $ (2) | $ (12) | $ 8 | $ 1
New Accounting Pronouncement, Early Adoption, Effect | Accounting Standards Update 2016-16 |  |  |  |
New Accounting Pronouncement, Early Adoption [Line Items] |  |  |  |
Reduction to retained earnings |  |  | 9 |
Income tax benefit | $ 3 |  | $ 4 |

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- Definition Amount of the cumulative effect on retained earnings net of related income tax effect. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=64853466&loc=d3e22663-107794 + Details
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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