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Schedule IV - Reinsurance
 12 Months Ended
Dec. 31, 2022
Supplemental Schedule of Reinsurance Premiums for Insurance Companies [Abstract]  
Supplemental Schedule of Reinsurance Premiums for Insurance Companies
SCHEDULE IV
MBIA INC. AND SUBSIDIARIES
REINSURANCE
Years Ended December 31, 2022, 2021 and 2020
(In millions)
 
Column A
Insurance
Premium
Written
  
Column B
Direct
Amount
 
  
Column C
Ceded to
Others
 
  
Column D
Assumed
From
Other
Companies
 
  
Column E
Net
Amount
 
  
Column F
Percentage
of Amount
Assumed
to Net
 
2022
    $ (3)      $ —      $ —      $ (3)        0%  
    
 
 
     
 
 
     
 
 
     
 
 
     
 
 
  
2021
    $ 8      $ 2      $ —      $ 6        0%  
    
 
 
     
 
 
     
 
 
     
 
 
     
 
 
  
2020
    $ 1      $ 1      $ —      $ —        0%