v3.26.3
Derivative Instruments - Schedule of Aggregate Contractual Notional Amounts and Fair Values of Derivatives (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Assets    
Assets Fair Value $ 229 $ 448
Freestanding derivatives    
Derivative [Line Items]    
Contractual/Notional Amount 101,940 97,830
Assets    
Assets Fair Value 216 430
Liabilities    
Liabilities Fair Value 1,220 235
Net Fair Value, Asset (Liability) (1,004) 195
Freestanding derivatives | Cross-currency swaps    
Derivative [Line Items]    
Contractual/Notional Amount 1,729 1,379
Assets    
Assets Fair Value 114 133
Liabilities    
Liabilities Fair Value 100 114
Net Fair Value, Asset (Liability) 14 19
Freestanding derivatives | Equity index call options    
Derivative [Line Items]    
Contractual/Notional Amount 2,500  
Assets    
Assets Fair Value 16  
Liabilities    
Liabilities Fair Value 0  
Net Fair Value, Asset (Liability) 16  
Freestanding derivatives | Equity index futures    
Derivative [Line Items]    
Contractual/Notional Amount 49,722 43,905
Assets    
Assets Fair Value 0 0
Liabilities    
Liabilities Fair Value 0 0
Net Fair Value, Asset (Liability) 0 0
Freestanding derivatives | Equity index put options    
Derivative [Line Items]    
Contractual/Notional Amount 10,000 16,500
Assets    
Assets Fair Value 45 114
Liabilities    
Liabilities Fair Value 0 0
Net Fair Value, Asset (Liability) 45 114
Freestanding derivatives | Interest rate swaps - cleared    
Derivative [Line Items]    
Contractual/Notional Amount 6,565 2,485
Assets    
Assets Fair Value 0 0
Liabilities    
Liabilities Fair Value 0 0
Net Fair Value, Asset (Liability) 0 0
Freestanding derivatives | Interest rate futures    
Derivative [Line Items]    
Contractual/Notional Amount 16,475 21,874
Assets    
Assets Fair Value 0 0
Liabilities    
Liabilities Fair Value 0 0
Net Fair Value, Asset (Liability) 0 0
Freestanding derivatives | Total return swaps    
Derivative [Line Items]    
Contractual/Notional Amount 6,244 3,544
Assets    
Assets Fair Value 41 22
Liabilities    
Liabilities Fair Value 316 43
Net Fair Value, Asset (Liability) (275) (21)
Freestanding derivatives | Bond forwards    
Derivative [Line Items]    
Contractual/Notional Amount 8,705 8,143
Assets    
Assets Fair Value 0 161
Liabilities    
Liabilities Fair Value 804 78
Net Fair Value, Asset (Liability) (804) 83
Embedded derivatives    
Assets    
Assets Fair Value 0 0
Liabilities    
Liabilities Fair Value 9,468 6,906
Net Fair Value, Asset (Liability) (9,468) (6,906)
Embedded derivatives | Fixed index annuity embedded derivatives    
Assets    
Assets Fair Value 0 0
Liabilities    
Liabilities Fair Value 805 863
Net Fair Value, Asset (Liability) (805) (863)
Embedded derivatives | Registered index linked annuity embedded derivatives    
Assets    
Assets Fair Value 0 0
Liabilities    
Liabilities Fair Value 8,663 6,043
Net Fair Value, Asset (Liability) (8,663) (6,043)
Derivatives related to funds withheld under reinsurance treaties    
Derivative [Line Items]    
Contractual/Notional Amount 812 1,291
Assets    
Assets Fair Value 1,996 1,770
Liabilities    
Liabilities Fair Value 11 22
Net Fair Value, Asset (Liability) 1,985 1,748
Derivatives related to funds withheld under reinsurance treaties | Cross-currency swaps    
Derivative [Line Items]    
Contractual/Notional Amount 158 158
Assets    
Assets Fair Value 7 11
Liabilities    
Liabilities Fair Value 1 1
Net Fair Value, Asset (Liability) 6 10
Derivatives related to funds withheld under reinsurance treaties | Cross-currency forwards    
Derivative [Line Items]    
Contractual/Notional Amount 654 1,133
Assets    
Assets Fair Value 6 7
Liabilities    
Liabilities Fair Value 10 21
Net Fair Value, Asset (Liability) (4) (14)
Derivatives related to funds withheld under reinsurance treaties | Funds withheld embedded derivative    
Assets    
Assets Fair Value 1,983 1,752
Liabilities    
Liabilities Fair Value 0 0
Net Fair Value, Asset (Liability) 1,983 1,752
Derivative assets    
Derivative [Line Items]    
Contractual/Notional Amount 102,752 99,121
Assets    
Assets Fair Value 2,212 2,200
Derivative liabilities    
Liabilities    
Liabilities Fair Value 10,699 7,163
Derivative    
Liabilities    
Net Fair Value, Asset (Liability) $ (8,487) $ (4,963)