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Income Taxes - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2017 | Dec. 31, 2017 | Jan. 01, 2017 | Jan. 03, 2016 | Dec. 28, 2014
Tax Credit Carryforward [Line Items] |  |  |  |  |
Provisional tax cost | $ 13,000 |  |  |  |
Provisional toll tax charge | 10,100 |  |  |  |
Deferred tax liability foreign taxes | 4,457 | $ 4,457 |  |  |
Deferred tax asset offset | 1,100 | $ 1,100 |  |  |
Remeasurement of deferred tax assets and liabilities | 600 |  |  |  |
U.S. statutory rate |  | 35.00% | 35.00% | 35.00% |
Increase in effective tax rate (as a percent) |  | 73.30% | 0.00% | 0.00% |
Increase in effective tax rate from prior period (as a percent) |  | 76.10% |  |  |
Other deferred tax assets | 755 | $ 755 | $ 1,135 |  |
Unrecognized tax benefits | 3,151 | 3,151 | 3,041 | $ 3,080 | $ 2,465
Unrecognized tax benefits, interest on income tax expense |  | 60 | 7 | $ 44 |
Unrecognized tax benefits, interest on income taxes accrued | 436 | 436 | $ 344 |  |
State and Local Jurisdiction |  |  |  |  |
Tax Credit Carryforward [Line Items] |  |  |  |  |
Deferred tax liability foreign taxes | $ 100 | $ 100 |  |  |
Increase in effective tax rate (as a percent) |  | 0.60% |  |  |

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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
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