Quarterly report pursuant to Section 13 or 15(d)

Investments (Details 3)

v3.20.2
Investments (Details 3) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 25, 2020
Sep. 27, 2019
Sep. 25, 2020
Sep. 27, 2019
Dec. 31, 2019
Debt securities, by type          
Available-for-sale Securities, Amortized Cost Basis $ 2,611   $ 2,611    
Debt Securities, Trading, and Equity Securities, FV-NI, Cost 2,645   2,645   $ 3,218
Debt securities, gross unrealized gain 64   64   114
Debt securities, gross unrealized loss 16   16   4
Debt Securities 2,693   2,693   3,328
Equity Securities [Member]          
Debt securities, by type          
Available-for-sale Securities, Gross Realized Gains 2 $ 9 19 $ 37  
Trading Securities, Equity, Cost 34   34   46
Trading Securities, Unrealized Holding Gain     1   1
Trading Securities, Unrealized Holding Loss     0   0
Debt Securities, Trading, and Equity Securities, FV-NI 35   35   47
Available-for-sale Securities, Debt Securities 2,611   2,611   3,172
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax 63   63   113
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax 16   16   4
Available-for-sale Securities Fair Value 2,658   2,658   3,281
Available-for-sale Securities, Gross Realized Losses (3) (1) (11) (5)  
Proceeds from Sale of Available-for-sale Securities 233 $ 1,284 1,419 $ 3,074  
Available-for-sale Securities [Member]          
Debt securities, by type          
Debt Securities 2,658   2,658   3,281
Trading Securities [Member]          
Debt securities, by type          
Debt Securities 35   35   47
Cash and Cash Equivalents [Member] | Available-for-sale Securities [Member]          
Debt securities, by type          
Debt Securities 305   305   123
Cash and Cash Equivalents [Member] | Trading Securities [Member]          
Debt securities, by type          
Debt Securities 0   0   0
Marketable Securities [Member] | Available-for-sale Securities [Member]          
Debt securities, by type          
Debt Securities 2,065   2,065   2,852
Marketable Securities [Member] | Trading Securities [Member]          
Debt securities, by type          
Debt Securities 35   35   47
Other Assets | Available-for-sale Securities [Member]          
Debt securities, by type          
Debt Securities 288   288   306
Other Assets | Trading Securities [Member]          
Debt securities, by type          
Debt Securities $ 0   $ 0   $ 0