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Other Comprehensive Income (Loss) - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2025
Jun. 30, 2025
Mar. 31, 2025
Sep. 30, 2024
Jun. 30, 2024
Mar. 31, 2024
Sep. 30, 2025
Sep. 30, 2024
Equity [Abstract]                
Comprehensive earnings $ 698 $ 832 $ 651 $ 895 $ 966 $ 886 $ 2,181 $ 2,747