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Dividends - Narrative (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Feb. 09, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dividends Payable [Line Items]        
Maximum dividend payable without prior permission of DOI of states domicile   $ 163    
Proceeds from dividends received   $ 0 $ 0 $ 191
Subsequent Event        
Dividends Payable [Line Items]        
Quarterly dividend declared (in dollars per share) $ 0.3175