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Other Financial Statement Details Gains (Losses) on Equity Investments, Net (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Gain (Loss) on Securities [Line Items]
Observable price adjustments on non-marketable equity securities1	$ (153)	$ (223)	$ (38)
Impairment charges	(424)	(833)	(187)
Total gains (losses) on equity investments, net	$ (125)	$ 2,651	$ 506

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.

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