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Derivatives and Hedging Activities - Derivatives Not Designated as Hedges Impact (Details) - Not designated as hedging instruments - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Net Investment Income
Impact of derivatives not designated as hedging instruments
Total gain (loss)	$ (2)	$ (2)
Net Investment Income | Interest rate contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
Net Investment Income | Equity contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	(2)	(2)
Net Investment Income | Credit contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
Net Investment Income | Foreign exchange contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
Net Investment Income | IUL embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
Net Investment Income | Fixed deferred indexed annuity and deposit receivables embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
Net Investment Income | Structured variable annuity embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
Net Investment Income | SMC embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
Banking and Deposit Interest Expense
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
Banking and Deposit Interest Expense | Interest rate contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
Banking and Deposit Interest Expense | Equity contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	(1)	1
Banking and Deposit Interest Expense | Credit contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
Banking and Deposit Interest Expense | Foreign exchange contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
Banking and Deposit Interest Expense | IUL embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
Banking and Deposit Interest Expense | Fixed deferred indexed annuity and deposit receivables embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
Banking and Deposit Interest Expense | Structured variable annuity embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
Banking and Deposit Interest Expense | SMC embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	1	(1)
Distribution Expenses
Impact of derivatives not designated as hedging instruments
Total gain (loss)	(73)	65
Distribution Expenses | Interest rate contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
Distribution Expenses | Equity contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	(75)	66
Distribution Expenses | Credit contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	2	(1)
Distribution Expenses | Foreign exchange contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
Distribution Expenses | IUL embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
Distribution Expenses | Fixed deferred indexed annuity and deposit receivables embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
Distribution Expenses | Structured variable annuity embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
Distribution Expenses | SMC embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
Interest Credited to Fixed Accounts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	2	22
Interest Credited to Fixed Accounts | Interest rate contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
Interest Credited to Fixed Accounts | Equity contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	(29)	32
Interest Credited to Fixed Accounts | Credit contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
Interest Credited to Fixed Accounts | Foreign exchange contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
Interest Credited to Fixed Accounts | IUL embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	32	(9)
Interest Credited to Fixed Accounts | Fixed deferred indexed annuity and deposit receivables embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	(1)	(1)
Interest Credited to Fixed Accounts | Structured variable annuity embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
Interest Credited to Fixed Accounts | SMC embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
Benefits, Claims, Losses and Settlement Expenses
Impact of derivatives not designated as hedging instruments
Total gain (loss)	(124)	(38)
Benefits, Claims, Losses and Settlement Expenses | Interest rate contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	2	(8)
Benefits, Claims, Losses and Settlement Expenses | Equity contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	(674)	598
Benefits, Claims, Losses and Settlement Expenses | Credit contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
Benefits, Claims, Losses and Settlement Expenses | Foreign exchange contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
Benefits, Claims, Losses and Settlement Expenses | IUL embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
Benefits, Claims, Losses and Settlement Expenses | Fixed deferred indexed annuity and deposit receivables embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
Benefits, Claims, Losses and Settlement Expenses | Structured variable annuity embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	548	(628)
Benefits, Claims, Losses and Settlement Expenses | SMC embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
Change in Fair Value of Market Risk Benefits
Impact of derivatives not designated as hedging instruments
Total gain (loss)	309	(993)
Change in Fair Value of Market Risk Benefits | Interest rate contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	120	(533)
Change in Fair Value of Market Risk Benefits | Equity contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	247	(559)
Change in Fair Value of Market Risk Benefits | Credit contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	(48)	65
Change in Fair Value of Market Risk Benefits | Foreign exchange contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	(10)	34
Change in Fair Value of Market Risk Benefits | IUL embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
Change in Fair Value of Market Risk Benefits | Fixed deferred indexed annuity and deposit receivables embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
Change in Fair Value of Market Risk Benefits | Structured variable annuity embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
Change in Fair Value of Market Risk Benefits | SMC embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
General and administrative expense
Impact of derivatives not designated as hedging instruments
Total gain (loss)	7	3
General and administrative expense | Interest rate contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
General and administrative expense | Equity contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	(5)	6
General and administrative expense | Credit contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
General and administrative expense | Foreign exchange contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	12	(3)
General and administrative expense | IUL embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
General and administrative expense | Fixed deferred indexed annuity and deposit receivables embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
General and administrative expense | Structured variable annuity embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0
General and administrative expense | SMC embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	$ 0	$ 0

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
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4A
-Subparagraph (b)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4E
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-4E

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