Quarterly report pursuant to Section 13 or 15(d)

Investments (Details)

v3.21.2
Investments (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended 12 Months Ended
Oct. 01, 2021
Sep. 25, 2020
Oct. 01, 2021
Sep. 25, 2020
Dec. 31, 2020
Equity securities, by type          
Equity Securities, FV-NI $ 2,701   $ 2,701   $ 2,374
Equity Securities without Readily Determinable Fair Value, Amount 47   47   50
Equity Securities, FV-NI, Gain (Loss) 4 $ 17 361 $ (137)  
Equity Securities, FV-NI, Realized Gain (Loss) 5 0 33 (24)  
Equity Securities, FV-NI, Unrealized Gain (Loss) (1) 17 328 (113)  
Available-for-sale Securities, Debt Securities 1,677   1,677    
Debt Securities, Trading, and Equity Securities, FV-NI, Cost 1,715   1,715   2,263
Debt Securities, Unrealized Gain (Loss)     37   53
Debt securities, gross unrealized loss 123   123   13
Debt Securities 1,629   1,629   2,303
Equity Securities, FV-NI 2,701   2,701   2,374
Trading Securities [Member]          
Equity securities, by type          
Debt Securities 40   40   38
Debt Securities [Member]          
Equity securities, by type          
Trading Securities, Equity, Cost 38   38   36
Available-for-sale Securities, Debt Securities 1,677   1,677   2,227
Debt Securities, Trading, Unrealized Gain     2   2
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax 35   35   51
Debt Securities, Trading, Unrealized Loss     0   0
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax 123   123   13
Debt Securities, Trading 40   40   38
Debt Securities, Available-for-sale 1,589   1,589   2,265
Debt Securities, Available-for-sale, Realized Gain 2 2 4 19  
Debt Securities, Available-for-sale, Realized Loss 0 3 8 11  
Proceeds from Sale and Maturity of Debt Securities, Available-for-sale 91 $ 233 1,058 $ 1,419  
Available-for-sale Securities [Member]          
Equity securities, by type          
Debt Securities 1,589   1,589   2,265
Marketable Securities [Member]          
Equity securities, by type          
Equity Securities, FV-NI 361   361   330
Equity Securities without Readily Determinable Fair Value, Amount 0   0   0
Marketable Securities [Member] | Trading Securities [Member]          
Equity securities, by type          
Debt Securities 40   40   38
Marketable Securities [Member] | Available-for-sale Securities [Member]          
Equity securities, by type          
Debt Securities 1,323   1,323   1,980
Other Investments [Member]          
Equity securities, by type          
Equity Securities without Readily Determinable Fair Value, Amount 47   47   50
Equity Securities, FV-NI, Noncurrent 850   850   762
Other Assets          
Equity securities, by type          
Equity Securities without Readily Determinable Fair Value, Amount 0   0   0
Equity Securities, FV-NI, Noncurrent 1,490   1,490   1,282
Other Assets | Trading Securities [Member]          
Equity securities, by type          
Debt Securities 0   0   0
Other Assets | Available-for-sale Securities [Member]          
Equity securities, by type          
Debt Securities $ 266   $ 266   $ 285