Quarterly report pursuant to Section 13 or 15(d)

Assets and Liabilities Measured at Fair Value - Realized and Unrealized Gains (Losses) (Details)

v3.20.2
Assets and Liabilities Measured at Fair Value - Realized and Unrealized Gains (Losses) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Realized and unrealized gains (losses) on financial instruments        
Realized and unrealized gains (losses) on financial instruments, net $ 23 $ (113) $ (115) $ (194)
Gain (loss) on changes in fair value (90) 10 129 (19)
Cumulative amount of gain (loss) in change in fair value 301   301  
Equity securities        
Realized and unrealized gains (losses) on financial instruments        
Realized and unrealized gains (losses) on financial instruments, net   (3) (4) 2
Exchangeable senior debentures        
Realized and unrealized gains (losses) on financial instruments        
Realized and unrealized gains (losses) on financial instruments, net (30) (139) (80) (255)
Indemnification asset        
Realized and unrealized gains (losses) on financial instruments        
Realized and unrealized gains (losses) on financial instruments, net 35 23 13 55
Other Financial Instruments        
Realized and unrealized gains (losses) on financial instruments        
Realized and unrealized gains (losses) on financial instruments, net $ 18 $ 6 $ (44) $ 4