v3.26.1
Derivatives - Narrative (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Net Investment Hedging          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Derivative gain (loss) $ (1,000,000) $ (14,000,000) $ 3,000,000 $ (22,000,000)  
Cumulative foreign currency translations, gain     17,000,000 14,000,000  
Athene Holding Limited | Credit Default Swap          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Credit risk derivative assets 144,000,000   144,000,000   $ 76,000,000
Credit risk derivative liabilities 1,000,000   1,000,000   1,000,000
Maximum amount of potential future payments 1,010,000,000   1,010,000,000   510,000,000
Interest Rate Swaps | Derivatives designated as hedges          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Derivative, notional amount 51,484,000,000   51,484,000,000   31,252,000,000
Interest Rate Swaps | Athene Holding Limited          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Gain (loss) recognized (84,000,000) 76,000,000 (148,000,000) 172,000,000  
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     (20,000,000)    
Forwards | Derivatives designated as hedges          
Derivative Instruments and Hedging Activities Disclosures [Line Items]          
Derivative, notional amount 1,670,000,000   1,670,000,000   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 21,200,000,000   21,200,000,000   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 0 $ 0  
Derivative, notional amount 27,919,000,000   27,919,000,000   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 $ 8,500,000,000   $ 8,500,000,000   $ 8,400,000,000