Quarterly report pursuant to Section 13 or 15(d)

Investments, Equity Investments (Details)

v3.20.2
Investments, Equity Investments (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 26, 2020
Sep. 28, 2019
Sep. 26, 2020
Sep. 28, 2019
Dec. 28, 2019
Schedule of Investments [Line Items]          
Marketable Securities $ 481   $ 481   $ 450
Cost Method Investments 3,189   3,189   3,480
Equity Method Investments 9   9   37
Equity Investments 3,679   3,679   $ 3,967
Mark to market on marketable equity securities1 (146) $ 114 (84) $ 188  
Observable price adjustments on non-marketable 5 84 142 100  
Impairments (40) (17) (233) (79)  
Other Net Equity Investments 237 137 387 713  
Gain (Loss) on Investments 56 318 212 922  
Net gains (losses) recognized during the period on equity securities 19 281 102 366  
Less: Net (gains) losses recognized during the period on equity securities sold during the period (12) (54) (87) (321)  
Unrealized gains (losses) recognized during the reporting period on equity securities still held at the reporting date $ 7 227 $ 15 45  
IM Flash Technologies, LLC          
Schedule of Investments [Line Items]          
Equity Method Investments   $ 1,100   $ 1,100