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Accounting Policies (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2016 | Dec. 26, 2015 | Dec. 27, 2014
Production Related Impairments or Charges [Abstract] |  |  |
Inventory Write-down | $ 270 |  |
Advertising [Abstract] |  |  |
Advertising Expense | 1,800 | $ 1,800 | $ 1,800
Schedule of Equity Method Investments [Line Items] |  |  |
Impairments | 187 | 185 | 146
Non-marketable equity investments [Member] |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Other Long-term Investments | 4,400 | 4,500 |
Impairments | 184 | $ 166 | $ 140
Total Credit Exposure To Any Single Counterparty [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Concentration Risk, Credit Risk, Financial Instrument, Maximum Exposure | $ 700 |  |
Accounts Receivable Customer Concentration Risk [Member] | Accounts Receivable, Net [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Concentration Risk, Percentage | 31.00% | 49.00% |

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- Definition Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 720 -SubTopic 35 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848 + Details
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