Quarterly report pursuant to Section 13 or 15(d)

Investments (Details 2)

v3.20.1
Investments (Details 2) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Mar. 27, 2020
Mar. 29, 2019
Dec. 31, 2019
Equity securities, by type      
Equity Securities, FV-NI, Gain (Loss) $ (396) $ 147  
Equity Securities, FV-NI, Realized Gain (Loss) (16) 7  
Equity Securities, FV-NI, Unrealized Loss 380    
Equity Securities, FV-NI, Unrealized Gain   140  
Equity Securities, FV-NI 1,763   $ 2,219
Equity Securities without Readily Determinable Fair Value, Amount 53   82
Debt Securities [Member]      
Equity securities, by type      
Trading Securities, Unrealized Holding Gain 0   1
Trading Securities, Unrealized Holding Loss 2   0
Debt Securities, Trading, and Equity Securities, FV-NI 31   47
Available-for-sale Securities Fair Value 2,459   3,281
Available-for-sale Securities, Gross Realized Gains 8 5  
Available-for-sale Securities, Gross Realized Losses 2 3  
Proceeds from Sale of Available-for-sale Securities 906 $ 722  
Marketable Securities [Member]      
Equity securities, by type      
Equity Securities, FV-NI 275   329
Equity Securities without Readily Determinable Fair Value, Amount 0   0
Other Investments [Member]      
Equity securities, by type      
Equity Securities, FV-NI 599   772
Equity Securities without Readily Determinable Fair Value, Amount 53   82
Other Assets      
Equity securities, by type      
Equity Securities, FV-NI 889   1,118
Equity Securities without Readily Determinable Fair Value, Amount $ 0   $ 0