Annual report pursuant to Section 13 and 15(d)

INVESTMENTS AND RESTRICTED CASH - Cash Details (Details)

v3.20.4
INVESTMENTS AND RESTRICTED CASH - Cash Details (Details) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Investments, Debt and Equity Securities [Abstract]        
Cash and cash equivalents $ 5,910 $ 5,238 $ 4,225  
Restricted cash 0 0 142  
Total cash, cash equivalents and restricted cash $ 5,910 $ 5,238 $ 4,367 $ 3,769