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, 2019
Dec. 31, 2018
Dec. 31, 2017
Available-for-sale securities, by type      
Equity Securities, FV-NI, Gain (Loss) $ 218 $ (250)  
Equity Securities, FV-NI 2,219 1,934  
Equity Securities without Readily Determinable Fair Value, Amount 82 80  
Available-for-sale securities, cost 3,172    
Equity Securities, FV-NI, Realized Gain (Loss) 27 8  
Equity Securities, FV-NI, Unrealized Gain (191) (258)  
Debt Securities, Trading, and Equity Securities, FV-NI, Cost 3,218 4,946  
Debt securities, gross unrealized gain 114 119  
Debt securities, gross unrealized loss (4) (28)  
Debt Securities 3,328 5,037  
Debt Securities [Member]      
Available-for-sale securities, by type      
Debt Securities, Trading, Amortized Cost 46 45  
Available-for-sale Securities, Gross Realized Gains 39 22 $ 7
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain 113 119  
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, (4) (27)  
Available-for-sale securities, estimated fair value 3,281 4,993  
Trading Securities, Unrealized Holding Gain 1 0  
Trading Securities, Unrealized Holding Loss 0 (1)  
Trading securities 47 44  
Gross realized losses (8) (27) (13)
Proceeds from Sale of Available-for-sale Securities 3,956 13,710 13,930
Debt Securities, Available-for-sale, Amortized Cost 3,172 4,901  
Trading Securities [Member]      
Available-for-sale securities, by type      
Debt Securities 47 44  
Available-for-Sale Securities      
Available-for-sale securities, by type      
Solvency Funds of Insurance Captive 1,266 1,056  
Available-for-sale Securities, Gross Realized Gains     61
Gross realized losses     (19)
Proceeds from Sale of Available-for-sale Securities     $ 275
Debt Securities 3,281 4,993  
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 123 0  
Other Investments      
Available-for-sale securities, by type      
Equity Securities, FV-NI 772 787  
Equity Securities without Readily Determinable Fair Value, Amount 82 80  
Other assets      
Available-for-sale securities, by type      
Equity Securities, FV-NI 1,118 869  
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 306 302  
Marketable Securities [Member]      
Available-for-sale securities, by type      
Equity Securities, FV-NI 329 278  
Equity Securities without Readily Determinable Fair Value, Amount 0 0  
Marketable Securities [Member] | Trading Securities [Member]      
Available-for-sale securities, by type      
Debt Securities 47 44  
Marketable Securities [Member] | Available-for-Sale Securities      
Available-for-sale securities, by type      
Debt Securities $ 2,852 $ 4,691