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Fair Value - Narrative (Details) - USD ($)
$ in Millions
Sep. 30, 2025
Dec. 31, 2024
Fair Value Disclosures [Abstract]    
Total assets and liabilities measured at fair value $ 39,400 $ 35,000
Total assets and liabilities measured at fair value priced using non-binding broker quotes $ 266 $ 185
Total assets and liabilities measured at fair value priced using non-binding broker quotes (percentage) 0.70% 0.50%
Senior notes $ 2,728 $ 2,728
Estimated fair value of senior notes $ 2,500 $ 2,400