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Derivative Financial Instruments - Schedule of Change in Fair Value of Derivative Instruments (Details) - USD ($) $ in Millions	3 Months Ended		4 Months Ended	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Derivative [Line Items]
Change in fair value of derivatives	$ 23	$ (14)		$ 23	$ (35)
Net investment gains (losses)
Derivative [Line Items]
Change in fair value of derivatives	19	34	$ 28	309
Call options | Net investment gains (losses)
Derivative [Line Items]
Change in fair value of derivatives	(6)	43	55	273
Futures contracts | Net investment gains (losses)
Derivative [Line Items]
Change in fair value of derivatives	0	7	9	4
Foreign currency forward | Net investment gains (losses)
Derivative [Line Items]
Change in fair value of derivatives	3	(4)	(4)	7
Other embedded derivatives | Net investment gains (losses)
Derivative [Line Items]
Change in fair value of derivatives	(1)	2	3	2
Reinsurance related embedded derivatives, included in accounts payable and accrued liabilities | Net investment gains (losses)
Derivative [Line Items]
Change in fair value of derivatives	23	(14)	(35)	23
FIA embedded derivative
Derivative [Line Items]
Change in fair value of derivatives	$ (320)	$ 209	$ 309	$ 35

X

- Definition

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959

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+ References

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