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Fair Value - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Fair Value Disclosures [Abstract]        
Transfers out of Level 3 $ 19 $ 0 $ 32 $ 0
Transfers into Level 3   $ 0   $ 0