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Fair Value - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Fair Value Disclosures [Abstract]        
Transfers out of Level 3 $ 13 $ 26 $ 42 $ 29