v3.25.2
Derivatives and Hedging (Financial Statement Classification and Impact of Derivatives Used in Qualifying and Non-qualifying Hedge Relationships) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Derivative Instruments, Gain (Loss) [Line Items]        
Non-derivative Net Investment Hedges income (loss) before taxes $ (37) $ 61 $ (88) $ 101
PRISMIC Embedded Derivative, Gain (Loss) on Derivative, Net 11 189 (136) 472
Gain (Loss) on Investments        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net (1,358) 724 (1,572) 575
Gain (Loss) on Investments | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net (1,343) 712 (1,578) 560
Market Risk Benefit, Increase (Decrease) from Equity Market Change)        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net (863) (518) (520) (1,972)
Market Risk Benefit, Increase (Decrease) from Equity Market Change) | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net (863) (518) (520) (1,972)
Investment Income        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 91 81 189 157
Investment Income | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Other Income        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net (349) 5 (497) 85
Other Income | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net (5) (3) (6) 0
Interest Expense        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Interest Expense | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Interest Credited To Policyholder Account Balances        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 12 (8) (2) 5
Interest Credited To Policyholder Account Balances | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Policyholder Benefits        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net (3) (10) (8) (25)
Policyholder Benefits | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Change in AOCI        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net (2,329) 284 (2,535) 634
Change in AOCI | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Fair Value Hedging | Gain (Loss) on Investments | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net (3) 1 (6) 6
Fair Value Hedging | Market Risk Benefit, Increase (Decrease) from Equity Market Change) | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Fair Value Hedging | Investment Income | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Fair Value Hedging | Other Income | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Fair Value Hedging | Interest Expense | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Fair Value Hedging | Interest Credited To Policyholder Account Balances | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 7 (19) 41 (69)
Fair Value Hedging | Policyholder Benefits | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 107 (22) 190 (97)
Fair Value Hedging | Change in AOCI | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Fair Value Hedged Item | Gain (Loss) on Investments        
Derivative Instruments, Gain (Loss) [Line Items]        
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge 2 (1) 4 (6)
Change In Unrealized Gain (Loss) On Hedged Item In Fair Value Net Of Hedging Instrument (1) 0 (2) 0
Fair Value Hedged Item | Market Risk Benefit, Increase (Decrease) from Equity Market Change)        
Derivative Instruments, Gain (Loss) [Line Items]        
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge 0 0 0 0
Change In Unrealized Gain (Loss) On Hedged Item In Fair Value Net Of Hedging Instrument 0 0 0 0
Fair Value Hedged Item | Investment Income        
Derivative Instruments, Gain (Loss) [Line Items]        
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge 2 3 7 6
Change In Unrealized Gain (Loss) On Hedged Item In Fair Value Net Of Hedging Instrument 2 3 7 6
Fair Value Hedged Item | Other Income        
Derivative Instruments, Gain (Loss) [Line Items]        
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge 0 0 0 0
Change In Unrealized Gain (Loss) On Hedged Item In Fair Value Net Of Hedging Instrument 0 0 0 0
Fair Value Hedged Item | Interest Expense        
Derivative Instruments, Gain (Loss) [Line Items]        
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge 0 0 0 0
Change In Unrealized Gain (Loss) On Hedged Item In Fair Value Net Of Hedging Instrument 0 0 0 0
Fair Value Hedged Item | Interest Credited To Policyholder Account Balances        
Derivative Instruments, Gain (Loss) [Line Items]        
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge 5 11 (43) 74
Change In Unrealized Gain (Loss) On Hedged Item In Fair Value Net Of Hedging Instrument 12 (8) (2) 5
Fair Value Hedged Item | Policyholder Benefits        
Derivative Instruments, Gain (Loss) [Line Items]        
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge (107) 15 (191) 77
Change In Unrealized Gain (Loss) On Hedged Item In Fair Value Net Of Hedging Instrument (3) (10) (8) (25)
Fair Value Hedged Item | Change in AOCI        
Derivative Instruments, Gain (Loss) [Line Items]        
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge 0 0 0 0
Change In Unrealized Gain (Loss) On Hedged Item In Fair Value Net Of Hedging Instrument (34) (19) (103) (9)
Gain(loss)excludedfromassessmentofeffectiveness | Gain (Loss) on Investments        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Gain(loss)excludedfromassessmentofeffectiveness | Market Risk Benefit, Increase (Decrease) from Equity Market Change)        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Gain(loss)excludedfromassessmentofeffectiveness | Investment Income        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Gain(loss)excludedfromassessmentofeffectiveness | Other Income        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Gain(loss)excludedfromassessmentofeffectiveness | Interest Expense        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Gain(loss)excludedfromassessmentofeffectiveness | Interest Credited To Policyholder Account Balances        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Gain(loss)excludedfromassessmentofeffectiveness | Policyholder Benefits        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net (3) (3) (7) (5)
Gain(loss)excludedfromassessmentofeffectiveness | Change in AOCI        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net (34) (19) (103) (9)
Cash Flow Hedging | Gain (Loss) on Investments | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net (14) 12 8 15
Cash Flow Hedging | Market Risk Benefit, Increase (Decrease) from Equity Market Change) | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Cash Flow Hedging | Investment Income | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 89 78 182 151
Cash Flow Hedging | Other Income | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net (344) 8 (491) 85
Cash Flow Hedging | Interest Expense | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Cash Flow Hedging | Interest Credited To Policyholder Account Balances | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Cash Flow Hedging | Policyholder Benefits | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Cash Flow Hedging | Change in AOCI | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net (2,256) 301 (2,377) 630
Net Investment Hedging | Gain (Loss) on Investments | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Net Investment Hedging | Market Risk Benefit, Increase (Decrease) from Equity Market Change) | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Net Investment Hedging | Investment Income | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Net Investment Hedging | Other Income | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Net Investment Hedging | Interest Expense | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Net Investment Hedging | Interest Credited To Policyholder Account Balances | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Net Investment Hedging | Policyholder Benefits | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Net Investment Hedging | Change in AOCI | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net (39) 2 (55) 13
Interest Rate | Gain (Loss) on Investments | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net (215) (371) (26) (1,033)
Interest Rate | Market Risk Benefit, Increase (Decrease) from Equity Market Change) | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net (271) (451) (130) (1,412)
Interest Rate | Investment Income | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Interest Rate | Other Income | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Interest Rate | Interest Expense | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Interest Rate | Interest Credited To Policyholder Account Balances | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Interest Rate | Policyholder Benefits | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Interest Rate | Change in AOCI | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Interest Rate | Fair Value Hedging | Gain (Loss) on Investments | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net (3) 1 (6) 6
Interest Rate | Fair Value Hedging | Market Risk Benefit, Increase (Decrease) from Equity Market Change) | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Interest Rate | Fair Value Hedging | Investment Income | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Interest Rate | Fair Value Hedging | Other Income | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Interest Rate | Fair Value Hedging | Interest Expense | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Interest Rate | Fair Value Hedging | Interest Credited To Policyholder Account Balances | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 7 (19) 41 (69)
Interest Rate | Fair Value Hedging | Policyholder Benefits | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net (2) (23) 28 (82)
Interest Rate | Fair Value Hedging | Change in AOCI | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Interest Rate | Fair Value Hedged Item | Gain (Loss) on Investments        
Derivative Instruments, Gain (Loss) [Line Items]        
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge 2 (1) 4 (6)
Interest Rate | Fair Value Hedged Item | Market Risk Benefit, Increase (Decrease) from Equity Market Change)        
Derivative Instruments, Gain (Loss) [Line Items]        
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge 0 0 0 0
Interest Rate | Fair Value Hedged Item | Investment Income        
Derivative Instruments, Gain (Loss) [Line Items]        
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge 2 3 7 6
Interest Rate | Fair Value Hedged Item | Other Income        
Derivative Instruments, Gain (Loss) [Line Items]        
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge 0 0 0 0
Interest Rate | Fair Value Hedged Item | Interest Expense        
Derivative Instruments, Gain (Loss) [Line Items]        
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge 0 0 0 0
Interest Rate | Fair Value Hedged Item | Interest Credited To Policyholder Account Balances        
Derivative Instruments, Gain (Loss) [Line Items]        
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge 5 11 (43) 74
Interest Rate | Fair Value Hedged Item | Policyholder Benefits        
Derivative Instruments, Gain (Loss) [Line Items]        
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge 3 15 (29) 63
Interest Rate | Fair Value Hedged Item | Change in AOCI        
Derivative Instruments, Gain (Loss) [Line Items]        
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge 0 0 0 0
Interest Rate | Cash Flow Hedging | Gain (Loss) on Investments | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 (13) 0 (13)
Interest Rate | Cash Flow Hedging | Market Risk Benefit, Increase (Decrease) from Equity Market Change) | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Interest Rate | Cash Flow Hedging | Investment Income | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net (4) (4) (7) (7)
Interest Rate | Cash Flow Hedging | Other Income | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Interest Rate | Cash Flow Hedging | Interest Expense | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Interest Rate | Cash Flow Hedging | Interest Credited To Policyholder Account Balances | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Interest Rate | Cash Flow Hedging | Policyholder Benefits | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Interest Rate | Cash Flow Hedging | Change in AOCI | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 2 11 10 1
Currency | Gain (Loss) on Investments | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net (413) (13) (587) (39)
Currency | Market Risk Benefit, Increase (Decrease) from Equity Market Change) | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency | Investment Income | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency | Other Income | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 (3) (1) (1)
Currency | Interest Expense | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency | Interest Credited To Policyholder Account Balances | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency | Policyholder Benefits | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency | Change in AOCI | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency | Fair Value Hedging | Gain (Loss) on Investments | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency | Fair Value Hedging | Market Risk Benefit, Increase (Decrease) from Equity Market Change) | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency | Fair Value Hedging | Investment Income | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency | Fair Value Hedging | Other Income | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency | Fair Value Hedging | Interest Expense | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency | Fair Value Hedging | Interest Credited To Policyholder Account Balances | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency | Fair Value Hedging | Policyholder Benefits | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 109 1 162 (15)
Currency | Fair Value Hedging | Change in AOCI | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency | Fair Value Hedged Item | Gain (Loss) on Investments        
Derivative Instruments, Gain (Loss) [Line Items]        
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge 0 0 0 0
Currency | Fair Value Hedged Item | Market Risk Benefit, Increase (Decrease) from Equity Market Change)        
Derivative Instruments, Gain (Loss) [Line Items]        
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge 0 0 0 0
Currency | Fair Value Hedged Item | Investment Income        
Derivative Instruments, Gain (Loss) [Line Items]        
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge 0 0 0 0
Currency | Fair Value Hedged Item | Other Income        
Derivative Instruments, Gain (Loss) [Line Items]        
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge 0 0 0 0
Currency | Fair Value Hedged Item | Interest Expense        
Derivative Instruments, Gain (Loss) [Line Items]        
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge 0 0 0 0
Currency | Fair Value Hedged Item | Interest Credited To Policyholder Account Balances        
Derivative Instruments, Gain (Loss) [Line Items]        
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge 0 0 0 0
Currency | Fair Value Hedged Item | Policyholder Benefits        
Derivative Instruments, Gain (Loss) [Line Items]        
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge (110) 0 (162) 14
Currency | Fair Value Hedged Item | Change in AOCI        
Derivative Instruments, Gain (Loss) [Line Items]        
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge 0 0 0 0
Currency | Gain(loss)excludedfromassessmentofeffectiveness | Gain (Loss) on Investments        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency | Gain(loss)excludedfromassessmentofeffectiveness | Market Risk Benefit, Increase (Decrease) from Equity Market Change)        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency | Gain(loss)excludedfromassessmentofeffectiveness | Investment Income        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency | Gain(loss)excludedfromassessmentofeffectiveness | Other Income        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency | Gain(loss)excludedfromassessmentofeffectiveness | Interest Expense        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency | Gain(loss)excludedfromassessmentofeffectiveness | Interest Credited To Policyholder Account Balances        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency | Gain(loss)excludedfromassessmentofeffectiveness | Policyholder Benefits        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net (3) (3) (7) (5)
Currency | Gain(loss)excludedfromassessmentofeffectiveness | Change in AOCI        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net (34) (19) (103) (9)
Currency | Cash Flow Hedging | Gain (Loss) on Investments | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency | Cash Flow Hedging | Market Risk Benefit, Increase (Decrease) from Equity Market Change) | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency | Cash Flow Hedging | Investment Income | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency | Cash Flow Hedging | Other Income | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency | Cash Flow Hedging | Interest Expense | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency | Cash Flow Hedging | Interest Credited To Policyholder Account Balances | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency | Cash Flow Hedging | Policyholder Benefits | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency | Cash Flow Hedging | Change in AOCI | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net (116) 9 (142) 24
Currency | Net Investment Hedging | Gain (Loss) on Investments | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency | Net Investment Hedging | Market Risk Benefit, Increase (Decrease) from Equity Market Change) | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency | Net Investment Hedging | Investment Income | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency | Net Investment Hedging | Other Income | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency | Net Investment Hedging | Interest Expense | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency | Net Investment Hedging | Interest Credited To Policyholder Account Balances | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency | Net Investment Hedging | Policyholder Benefits | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency | Net Investment Hedging | Change in AOCI | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net (39) 2 (55) 13
Currency/Interest Rate | Gain (Loss) on Investments | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net (343) 66 (370) 172
Currency/Interest Rate | Market Risk Benefit, Increase (Decrease) from Equity Market Change) | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency/Interest Rate | Investment Income | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency/Interest Rate | Other Income | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net (5) 0 (5) 1
Currency/Interest Rate | Interest Expense | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency/Interest Rate | Interest Credited To Policyholder Account Balances | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency/Interest Rate | Policyholder Benefits | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency/Interest Rate | Change in AOCI | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency/Interest Rate | Cash Flow Hedging | Gain (Loss) on Investments | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net (14) 25 8 28
Currency/Interest Rate | Cash Flow Hedging | Market Risk Benefit, Increase (Decrease) from Equity Market Change) | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency/Interest Rate | Cash Flow Hedging | Investment Income | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 93 82 189 158
Currency/Interest Rate | Cash Flow Hedging | Other Income | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net (344) 8 (491) 85
Currency/Interest Rate | Cash Flow Hedging | Interest Expense | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency/Interest Rate | Cash Flow Hedging | Interest Credited To Policyholder Account Balances | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency/Interest Rate | Cash Flow Hedging | Policyholder Benefits | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency/Interest Rate | Cash Flow Hedging | Change in AOCI | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net (2,142) 281 (2,245) 605
Currency/Interest Rate | Net Investment Hedging | Gain (Loss) on Investments | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency/Interest Rate | Net Investment Hedging | Market Risk Benefit, Increase (Decrease) from Equity Market Change) | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency/Interest Rate | Net Investment Hedging | Investment Income | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency/Interest Rate | Net Investment Hedging | Other Income | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency/Interest Rate | Net Investment Hedging | Interest Expense | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency/Interest Rate | Net Investment Hedging | Interest Credited To Policyholder Account Balances | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency/Interest Rate | Net Investment Hedging | Policyholder Benefits | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Currency/Interest Rate | Net Investment Hedging | Change in AOCI | Derivatives Designated as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Credit Risk Contract | Gain (Loss) on Investments | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 52 4 41 56
Credit Risk Contract | Market Risk Benefit, Increase (Decrease) from Equity Market Change) | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Credit Risk Contract | Investment Income | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Credit Risk Contract | Other Income | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Credit Risk Contract | Interest Expense | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Credit Risk Contract | Interest Credited To Policyholder Account Balances | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Credit Risk Contract | Policyholder Benefits | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Credit Risk Contract | Change in AOCI | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Equity | Gain (Loss) on Investments | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 2,484 591 1,015 2,040
Equity | Market Risk Benefit, Increase (Decrease) from Equity Market Change) | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net (592) (67) (390) (560)
Equity | Investment Income | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Equity | Other Income | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Equity | Interest Expense | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Equity | Interest Credited To Policyholder Account Balances | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Equity | Policyholder Benefits | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Equity | Change in AOCI | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Other Contract | Gain (Loss) on Investments | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Other Contract | Market Risk Benefit, Increase (Decrease) from Equity Market Change) | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Other Contract | Investment Income | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Other Contract | Other Income | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Other Contract | Interest Expense | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Other Contract | Interest Credited To Policyholder Account Balances | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Other Contract | Policyholder Benefits | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Other Contract | Change in AOCI | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Embedded Derivative Financial Instruments | Gain (Loss) on Investments | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net (2,908) 435 (1,651) (636)
Embedded Derivative Financial Instruments | Market Risk Benefit, Increase (Decrease) from Equity Market Change) | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Embedded Derivative Financial Instruments | Investment Income | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Embedded Derivative Financial Instruments | Other Income | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Embedded Derivative Financial Instruments | Interest Expense | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Embedded Derivative Financial Instruments | Interest Credited To Policyholder Account Balances | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Embedded Derivative Financial Instruments | Policyholder Benefits | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net 0 0 0 0
Embedded Derivative Financial Instruments | Change in AOCI | Derivatives Not Qualifying as Hedge Accounting Instruments:        
Derivative Instruments, Gain (Loss) [Line Items]        
Derivative Instruments Gain (Loss) Recognized In Income Net $ 0 $ 0 $ 0 $ 0