Financial Instruments - Derivative Activities Table (Details) - Investment Segment - USD ($) $ in Millions |
Sep. 30, 2020 |
Dec. 31, 2019 |
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Equity contracts | ||||
Derivative [Line Items] | ||||
Long Notional Exposure | $ 0 | $ 806 | ||
Short Notional Exposure | 2,022 | 13,113 | ||
Credit contracts | ||||
Derivative [Line Items] | ||||
Long Notional Exposure | [1] | 0 | 0 | |
Short Notional Exposure | [1] | 2,501 | 622 | |
Credit Default Swap | ||||
Derivative [Line Items] | ||||
Short notional amount of credit default swap positions | $ 6,200 | $ 4,700 | ||
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