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Financial Instruments - Gain (Loss) Recognized on Derivatives Not Designated as Hedging Table (Details) - Not designated as hedging instrument - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Net gain (loss) from investment activities
Derivative
Gain (loss) on derivatives not designated as hedging instruments recognized in income	[1]	$ (131)	$ (1,012)	$ (495)
Equity Contract
Derivative
Gain (loss) on derivatives not designated as hedging instruments recognized in income	[1]	456	(1,100)	(1,583)
Credit Risk Contract
Derivative
Gain (loss) on derivatives not designated as hedging instruments recognized in income	[1]	(586)	$ 88	$ 1,088
Commodity Contract
Derivative
Gain (loss) on derivatives not designated as hedging instruments recognized in income	[1]	$ (1)
[1] Gains (losses) recognized on derivatives are classified in net gain (loss) from investment activities in our consolidated statements of operations for our Investment segment.

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- Definition

Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4CC
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL109998890-113959

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5624171-113959

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- Definition

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+ References

No definition available.

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