XML 103 R90.htm IDEA: XBRL DOCUMENT v3.20.2
Derivative Financial Instruments - Offsetting (Details) - USD ($)
$ in Millions
Jun. 30, 2020
Dec. 31, 2019
Derivative Financial Instruments    
Potential reduction in net position of total derivative assets $ 220 $ 194
Potential reduction in net position of total derivative liabilities 220 194
Cash collateral rehypothecated 0 0
Other receivables    
Derivative Financial Instruments    
Right to reclaim cash collateral 0 26
Accounts payable    
Derivative Financial Instruments    
Obligation to return cash collateral $ 2 $ 0