Share-based Payments (Tables)

3 Months Ended

Dec. 31, 2024

Share-Based Payment Arrangement [Abstract]

Schedule of Restricted Stock Units and PEP Units Activity

Restricted stock units and PEP unit activity for the three months ended December 31 was as follows:

	2024						2023
	Restricted Stock Units	Weighted Average Grant-Date Fair Value		PEP Units	Weighted Average Grant-Date Fair Value		Restricted  Stock Units	Weighted Average Grant-Date Fair Value		PEP Units	Weighted Average Grant-Date Fair Value
	(in millions)			(in millions)			(in millions)			(in millions)
Outstanding at September 30,	0.8	$	83.96	0.7	$	95.38	0.8	$	68.34	0.7	$	75.54
Granted	0.2	$	111.45	0.2	$	129.50	0.3	$	92.27	0.2	$	104.66
PEP units earned	—	$	—	0.1	$	85.46	—	$	—	0.2	$	52.50
Vested	(0.2)	$	74.63	(0.3)	$	85.46	(0.3)	$	47.82	(0.4)	$	52.50
Outstanding at December 31,	0.8	$	95.45	0.7	$	109.68	0.8	$	83.56	0.7	$	95.29