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Pay vs Performance Disclosure - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Mar. 31, 2024
Mar. 31, 2023
Pay vs Performance Disclosure        
Net Income (Loss) Attributable to Parent $ 1,172.1 $ 942.2 $ 2,119.5 $ 1,900.9