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Business and Basis of Presentation (Affiliated Asset Transfers) (Details) - USD ($)
$ in Thousands
12 Months Ended
Jul. 01, 2021
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Effects of Reinsurance [Line Items]        
Realized Investment Gain/(Loss), Net   $ 7,488,807 $ (5,260,940) $ (2,681,320)
Variable annuity | Impacts of Recapture        
Effects of Reinsurance [Line Items]        
Realized Investment Gain/(Loss), Net $ 5,142,000      
Variable annuity | Impacts of Recapture | Affiliated Entity | Pruco Life July 1, 2021 Sale        
Effects of Reinsurance [Line Items]        
Fair Value   4,908,000      
Book Value   4,720,000      
APIC Increase/(Decrease) 0      
Realized Investment Gain/(Loss), Net 173,000      
Derivative Gain/(Loss) 15,000      
Variable annuity | Impacts of Recapture | Affiliated Entity | PAI July 1, 2021 Return of Capital        
Effects of Reinsurance [Line Items]        
Fair Value   3,420,000      
Book Value   3,420,000      
APIC Increase/(Decrease) (3,420,000)      
Realized Investment Gain/(Loss), Net 0      
Derivative Gain/(Loss) $ 0