Other Financial Statement Details Gains (Losses) on Equity Investments, Net (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2016	Dec. 26, 2015	Dec. 27, 2014
Gain (Loss) on Investments [Line Items]
Share of equity method investee losses, net	$ (38)	$ (95)	$ (69)
Impairments	(187)	(185)	(146)
Other, net	95	398	147
Total gains (losses) on equity investments, net	506	315	411
Equity Securities [Member]
Gain (Loss) on Investments [Line Items]
Gains on sales, net	562	145	422
Dividends	$ 74	$ 52	$ 57

Other Net Equity Investments

No definition available.

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- Definition

This item represents the net total realized and unrealized gain (loss) included in earnings for the period as a result of selling or holding marketable securities categorized as trading, available-for-sale, or held-to-maturity, including the unrealized holding gain (loss) of held-to-maturity securities transferred to the trading security category and the cumulative unrealized gain (loss) which was included in other comprehensive income (a separate component of shareholders' equity) for available-for-sale securities transferred to trading securities during the period. Additionally, this item would include any gains (losses) realized during the period from the sale of investments accounted for under the cost method of accounting and losses recognized for other than temporary impairments (OTTI) of the subject investments.

+ References

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-Publisher FASB
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- Definition

The difference between the carrying value and the sale price of an investment. A gain would be recognized when the sale price of the investment is greater than the carrying value of the investment. This element refers to the Gain included in earnings and not to the cash proceeds of the sale.

+ References

No definition available.

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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.

+ References

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- Definition

This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

+ References

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Amount of dividend income on nonoperating securities.

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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.

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No definition available.

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