Derivatives and Hedging Activities - Derivatives Not Designated as Hedges Impact (Details) - Derivatives not designated as hedging instruments - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Net Investment Income
Impact of derivatives not designated as hedging instruments
Total gain (loss)	$ 4	$ (23)	$ 13	$ (40)
Net Investment Income | Interest rate contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0	1	(23)
Net Investment Income | Equity contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	3	0	10	0
Net Investment Income | Credit contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0	0	0
Net Investment Income | Foreign exchange contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	1	(23)	2	(17)
Net Investment Income | GMWB and GMAB embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0	0	0
Net Investment Income | IUL embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0	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
Net Investment Income | Fixed deferred indexed annuity 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	0	0
Net Investment Income | SMC embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0		0	0
Banking and Deposit Interest Expense
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0	0	0
Banking and Deposit Interest Expense | Interest rate contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0	0	0
Banking and Deposit Interest Expense | Equity contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	(1)	0	(1)	1
Banking and Deposit Interest Expense | Credit contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0	0	0
Banking and Deposit Interest Expense | Foreign exchange contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0	0	0
Banking and Deposit Interest Expense | GMWB and GMAB embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0	0	0
Banking and Deposit Interest Expense | IUL embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0	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
Banking and Deposit Interest Expense | Fixed deferred indexed annuity 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	0	0
Banking and Deposit Interest Expense | SMC embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	1		1	(1)
Distribution Expenses
Impact of derivatives not designated as hedging instruments
Total gain (loss)	(40)	(13)	(229)	67
Distribution Expenses | Interest rate contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0	(3)	(1)
Distribution Expenses | Equity contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	(41)	(13)	(224)	67
Distribution Expenses | Credit contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	1	0	(2)	1
Distribution Expenses | Foreign exchange contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0	0	0
Distribution Expenses | GMWB and GMAB embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0	0	0
Distribution Expenses | IUL embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0	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
Distribution Expenses | Fixed deferred indexed annuity 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	0	0
Distribution Expenses | SMC embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0		0	0
Interest Credited to Fixed Accounts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	25	12	110	70
Interest Credited to Fixed Accounts | Interest rate contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0	0	0
Interest Credited to Fixed Accounts | Equity contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	(23)	0	(135)	55
Interest Credited to Fixed Accounts | Credit contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0	0	0
Interest Credited to Fixed Accounts | Foreign exchange contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0	0	0
Interest Credited to Fixed Accounts | GMWB and GMAB embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0	0	0
Interest Credited to Fixed Accounts | IUL embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	48	11	242	22
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)			3
Interest Credited to Fixed Accounts | Fixed deferred indexed annuity embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)		1		(7)
Interest Credited to Fixed Accounts | Structured variable annuity embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0	0	0
Interest Credited to Fixed Accounts | SMC embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0		0	0
Benefits, Claims, Losses and Settlement Expenses
Impact of derivatives not designated as hedging instruments
Total gain (loss)	36	(249)	248	(1,004)
Benefits, Claims, Losses and Settlement Expenses | Interest rate contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	(753)	(171)	(2,815)	(1,125)
Benefits, Claims, Losses and Settlement Expenses | Equity contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	341	1	1,066	(613)
Benefits, Claims, Losses and Settlement Expenses | Credit contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	92	2	288	41
Benefits, Claims, Losses and Settlement Expenses | Foreign exchange contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	112	0	219	6
Benefits, Claims, Losses and Settlement Expenses | GMWB and GMAB embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	71	(64)	551	879
Benefits, Claims, Losses and Settlement Expenses | IUL embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0	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
Benefits, Claims, Losses and Settlement Expenses | Fixed deferred indexed annuity 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)	173	(17)	939	(192)
Benefits, Claims, Losses and Settlement Expenses | SMC embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0		0	0
Interest and Debt Expense
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0	(1)	0
Interest and Debt Expense | Interest rate contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0	(1)	0
Interest and Debt Expense | Equity contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0	0	0
Interest and Debt Expense | Credit contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0	0	0
Interest and Debt Expense | Foreign exchange contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0	0	0
Interest and Debt Expense | GMWB and GMAB embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0	0	0
Interest and Debt Expense | IUL embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0	0	0
Interest and Debt Expense | Fixed deferred indexed annuity and deposit receivables embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)			0
Interest and Debt Expense | Fixed deferred indexed annuity embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)		0		0
Interest and Debt Expense | Structured variable annuity embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0	0	0
Interest and Debt Expense | SMC embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0		0	0
General and Administrative Expense
Impact of derivatives not designated as hedging instruments
Total gain (loss)	(13)	(1)	(42)	9
General and Administrative Expense | Interest rate contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0	0	0
General and Administrative Expense | Equity contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	(5)	(1)	(29)	11
General and Administrative Expense | Credit contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0	0	0
General and Administrative Expense | Foreign exchange contracts
Impact of derivatives not designated as hedging instruments
Total gain (loss)	(8)	0	(13)	(2)
General and Administrative Expense | GMWB and GMAB embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0	0	0
General and Administrative Expense | IUL embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	0	0	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
General and Administrative Expense | Fixed deferred indexed annuity 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	0	0
General and Administrative Expense | SMC embedded derivatives
Impact of derivatives not designated as hedging instruments
Total gain (loss)	$ 0		$ 0	$ 0