Annual report pursuant to Section 13 and 15(d)

MARKETABLE SECURITIES (Details)

v3.20.4
MARKETABLE SECURITIES (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Schedule of Available-for-sale Securities      
Debt Securities, Available-for-sale, Amortized Cost $ 1 $ 1  
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax 0 0  
Debt Securities, Available-for-sale 1 1  
Total Marketable Securities, Amortized Cost Basis 451 334  
Total Marketable Securities, Accumulated Gross Unrealized Gain(Loss), before tax 10 7  
Total Marketable Securities, Estimated Fair Value 461 341  
Proceeds from sales of marketable securities 343 258 $ 253
Proceeds from maturities of marketable securities 126 131 78
Proceeds from Sale and Maturity of Marketable Securities 469 389 $ 331
Debt mutual funds      
Schedule of Available-for-sale Securities      
Equity Securities, FV-NI, Cost 267 180  
Equity Securities, FV-NI, Unrealized Gain (Loss) 5 3  
Equity Securities, FV-NI 272 183  
Certificates of Deposit      
Schedule of Available-for-sale Securities      
Equity Securities, FV-NI, Cost 164 133  
Equity Securities, FV-NI 164 133  
Equity Mutual Funds      
Schedule of Available-for-sale Securities      
Equity Securities, FV-NI, Cost 19 19  
Equity Securities, FV-NI, Unrealized Gain (Loss) 5 4  
Equity Securities, FV-NI 24 23  
Bank Time Deposits      
Schedule of Available-for-sale Securities      
Equity Securities, FV-NI, Cost 0 1  
Equity Securities, FV-NI $ 0 $ 1  
Minimum | Certificates of Deposit      
Schedule of Available-for-sale Securities      
Maturities of Bank Debentures Description three months    
Maximum | Certificates of Deposit      
Schedule of Available-for-sale Securities      
Maturities of Bank Debentures Description five years