Annual report pursuant to Section 13 and 15(d)

INVESTMENTS (Details 2)

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INVESTMENTS (Details 2) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Available-for-sale securities, by type      
Equity Securities, FV-NI, Gain (Loss) $ 146 $ 218  
Equity Securities, FV-NI 2,374 2,219  
Equity Securities without Readily Determinable Fair Value, Amount 50 82  
Available-for-sale securities, cost 2,227    
Equity Securities, FV-NI, Realized Gain (Loss) (22) 27  
Equity Securities, FV-NI, Unrealized Gain 168 191  
Debt Securities, Trading, and Equity Securities, FV-NI, Cost 2,263 3,218  
Debt securities, gross unrealized gain 53 114  
Debt securities, gross unrealized loss 13 4  
Debt Securities 2,303 3,328  
Debt Securities [Member]      
Available-for-sale securities, by type      
Debt Securities, Trading, Amortized Cost 36 46  
Available-for-sale Securities, Gross Realized Gains 20 39 $ 22
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain 51 113  
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax 13 4  
Available-for-sale securities, estimated fair value 2,265 3,281  
Trading Securities, Unrealized Holding Gain 2 1  
Trading Securities, Unrealized Holding Loss 0 0  
Trading securities 38 47  
Gross realized losses 13 8 27
Proceeds from Sale of Available-for-sale Securities 1,559 3,956 $ 13,710
Debt Securities, Available-for-sale, Amortized Cost 2,227 3,172  
Trading Securities [Member]      
Available-for-sale securities, by type      
Debt Securities 38 47  
Available-for-Sale Securities      
Available-for-sale securities, by type      
Solvency Funds of Insurance Captive 1,389 1,266  
Debt Securities 2,265 3,281  
Cash and cash equivalents | Trading Securities [Member]      
Available-for-sale securities, by type      
Debt Securities 0 0  
Cash and cash equivalents | Available-for-Sale Securities      
Available-for-sale securities, by type      
Debt Securities 0 123  
Other Investments      
Available-for-sale securities, by type      
Equity Securities, FV-NI 762 772  
Equity Securities without Readily Determinable Fair Value, Amount 50 82  
Other assets      
Available-for-sale securities, by type      
Equity Securities, FV-NI 1,282 1,118  
Equity Securities without Readily Determinable Fair Value, Amount 0 0  
Other assets | Trading Securities [Member]      
Available-for-sale securities, by type      
Debt Securities 0 0  
Other assets | Available-for-Sale Securities      
Available-for-sale securities, by type      
Debt Securities 285 306  
Marketable Securities [Member]      
Available-for-sale securities, by type      
Equity Securities, FV-NI 330 329  
Equity Securities without Readily Determinable Fair Value, Amount 0 0  
Marketable Securities [Member] | Trading Securities [Member]      
Available-for-sale securities, by type      
Debt Securities 38 47  
Marketable Securities [Member] | Available-for-Sale Securities      
Available-for-sale securities, by type      
Debt Securities $ 1,980 $ 2,852