Long-term and Short-term Debt (Tables)

12 Months Ended

Sep. 30, 2022

Debt Disclosure [Abstract]

Schedule of Debt

Long-term debt consists of (in millions):

	September 30,
	2022		2021
0.35% notes, payable in August 2023	$	600.0	$	600.0
2.875% notes, payable in March 2025	311.0		315.6
6.70% debentures, payable in January 2028	250.0		250.0
3.50% notes, payable in March 2029	425.0		425.0
1.75% notes, payable in August 2031	450.0		450.0
6.25% debentures, payable in December 2037	250.0		250.0
4.20% notes, payable in March 2049	575.0		575.0
2.80% notes, payable in August 2061	450.0		450.0
5.20% debentures, payable in January 2098	200.0		200.0
Unamortized discount, capitalized lease obligations and other	(34.1)		(44.2)
Total debt	3,476.9		$	3,471.4
Less: Current portion	(609.1)		(6.8)
Long-term debt	$	2,867.8	$	3,464.6

Schedule of Fair Value of Long-term Debt

The following table presents the carrying amounts and estimated fair values of Long-term debt in the Consolidated Balance Sheet (in millions):

	September 30, 2022				September 30, 2021
	Carrying Value		Fair Value		Carrying Value		Fair Value
Current portion of long-term debt	$	609.1	$	589.1	$	6.8	$	6.8
Long-term debt	2,867.8		2,485.4		3,464.6		3,874.8