Investments, Non-Marketable Cost Method Investments (Detail) - USD ($) $ in Millions |
12 Months Ended | ||
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Dec. 30, 2017 |
Dec. 31, 2016 |
Dec. 26, 2015 |
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| Schedule of Cost-method Investments [Line Items] | |||
| Non-marketable cost method investments | $ 2,613 | $ 3,098 | |
| Impairments | 833 | 187 | $ 185 |
| Cost-method Investments [Member] | |||
| Schedule of Cost-method Investments [Line Items] | |||
| Impairments | 548 | 178 | $ 164 |
| Beijing UniSpreadtrum Technology Ltd [Member] | |||
| Schedule of Cost-method Investments [Line Items] | |||
| Non-marketable cost method investments | 658 | $ 966 | |
| Beijing UniSpreadtrum Technology Ltd [Member] | Cost-method Investments [Member] | |||
| Schedule of Cost-method Investments [Line Items] | |||
| Impairments | $ 308 | ||
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- Definition Amount, after adjustment, of cost-method investment. Adjustments include, but are not limited to, dividends received in excess of earnings after date of investment that are considered a return of investment and other than temporary impairments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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