XML 214 R184.htm IDEA: XBRL DOCUMENT v3.22.4
Fair Value Measurements - Difference Between the Aggregate Fair Value and the Aggregate Unpaid Principal Balance for Residential Mortgage Loans Measured at Fair Value (Details) - Residential mortgage loans - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Aggregate  Fair Value    
Loans measured at fair value $ 723 $ 1,177
Past due loans of 30-89 days 1  
Past due loans of 90 days or more   3
Nonaccrual loans 2  
Aggregate Unpaid Principal Balance    
Loans measured at fair value 733 1,149
Past due loans of 30-89 days 1  
Past due loans of 90 days or more   3
Nonaccrual loans 2  
Difference    
Loans measured at fair value (10) 28
Past due loans of 30-89 days 0  
Past due loans of 90 days or more   $ 0
Nonaccrual loans $ 0