v3.26.1
Derivatives - Narrative (Details) - USD ($)
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Net Investment Hedging      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Derivative gain (loss) $ 4,000,000 $ (8,000,000)  
Cumulative foreign currency translations, gain 18,000,000 14,000,000  
Athene Holding Limited | Credit Default Swap      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Credit risk derivative assets 107,000,000   $ 76,000,000
Credit risk derivative liabilities 1,000,000   1,000,000
Maximum amount of potential future payments 985,000,000   510,000,000
Interest Rate Swaps | Derivatives designated as hedges      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Derivative, notional amount 35,231,000,000   31,252,000,000
Interest Rate Swaps | Athene Holding Limited      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Gain (loss) recognized (64,000,000) 96,000,000  
Interest Rate Swaps | Athene Holding Limited | Cash Flow Hedging | Derivatives designated as hedges      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Gain (loss) on foreign currency derivatives recorded in earnings 0 0  
Amount expected to reclassified into income within the next 12 months 5,000,000    
Forwards | Derivatives designated as hedges      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Derivative, notional amount 1,950,000,000   2,302,000,000
Forwards | Fair Value Hedging | AFS securities      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Amortized cost and carrying amount, fair value hedge 20,900,000,000   21,300,000,000
Swaps | Derivatives designated as hedges      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Gain (loss) on foreign currency derivatives recorded in earnings 0 $ 0  
Derivative, notional amount 26,971,000,000   26,437,000,000
Swaps | Fair Value Hedging | AFS securities      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Amortized cost and carrying amount, fair value hedge $ 8,300,000,000   $ 8,400,000,000