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Fair Value - Narrative (Details)
3 Months Ended
Mar. 31, 2022
USD ($)
Mar. 31, 2021
USD ($)
Dec. 31, 2021
USD ($)
Fair Value Disclosures [Abstract]      
Fair value, option, changes in fair value, gain (loss) $ (3,000,000) $ (3,000,000)  
Fair value, option, loans held as assets, 90 days or more past due 0   $ 0
Fair Value, option, loans held as assets, aggregate amount in nonaccrual status $ 0   $ 0
Measurement Input, Discount Rate      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Financing receivable, measurement input 0.0813   0.0879
Minimum | Measurement Input, Discount Rate      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Financing receivable, measurement input 0.06    
Maximum | Measurement Input, Discount Rate      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Financing receivable, measurement input 0.15