Equity and Noncontrolling Interests - Narrative (Details) - USD ($)		3 Months Ended		6 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023	Sep. 30, 2023	Nov. 30, 2022
Equity [Abstract]
Aggregate amount							$ 600,000,000
Stock repurchased and retired during period (in shares)			1,460,990	4,464,348		1,756,777
Average repurchase price per share (in dollars per share)			$ 34.22	$ 33.60		$ 37.00
Stock repurchased and retired during period, value	$ 28,000,000		$ 50,000,000	$ 150,000,000		$ 65,000,000
Stock repurchased during period, value		$ 50,000,000	$ 30,000,000	150,000,000	$ 30,000,000
Stock repurchase program, remaining authorized repurchase amount		$ 385,000,000		$ 385,000,000