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Derivative Financial Instruments - Schedule of Change in Fair Value of Derivative Instruments (Details) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2022 | Mar. 31, 2021
Derivative [Line Items] |  |
Change in fair value of derivatives | $ 122 | $ 27
Net investment gains (losses) |  |
Derivative [Line Items] |  |
Change in fair value of derivatives | (189) | 53
Call options | Net investment gains (losses) |  |
Derivative [Line Items] |  |
Change in fair value of derivatives | (314) | 22
Futures contracts | Net investment gains (losses) |  |
Derivative [Line Items] |  |
Change in fair value of derivatives | 3 | 0
Foreign currency forwards | Net investment gains (losses) |  |
Derivative [Line Items] |  |
Change in fair value of derivatives | 3 | 4
Other embedded derivatives | Net investment gains (losses) |  |
Derivative [Line Items] |  |
Change in fair value of derivatives | (3) | 0
Reinsurance related embedded derivatives | Net investment gains (losses) |  |
Derivative [Line Items] |  |
Change in fair value of derivatives | 122 | 27
FIA/ IUL embedded derivatives |  |
Derivative [Line Items] |  |
Change in fair value of derivatives | $ (488) | $ (111)

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- 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 + Details
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