Amount Of Expected Debt Funding, Percent

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- Definition

Maximum borrowing capacity under project financing without consideration of the amounts currently outstanding under the financing.

+ References

No definition available.

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- Definition

Amount of unrealized gain (loss) recognized in earnings on derivative instruments for which cash flow hedging is discontinued, before tax

+ References

No definition available.

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- Definition

Amount of unrealized gain (loss) recognized in earnings on derivative instruments for which cash flow hedging is discontinued, net of income taxes, that is attributable to the parent.

+ References

No definition available.

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Amount of unrealized gain (loss) recognized in earnings on derivative instruments for which cash flow hedging is discontinued, before tax

+ References

No definition available.

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- Definition

Value of engineering, procurement, and construction ("EPC") agreement

+ References

No definition available.

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- Definition

Represents the aggregate of total long-term debt, including current maturities and short-term debt.

+ References

No definition available.

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- Definition

The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a rate subject to change from time to time.

+ References

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- Definition

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

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Variable Interest Entities - NGHC Joint Venture Project Financing (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended		9 Months Ended
	May 31, 2023	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Sep. 30, 2024
Variable Interest Entity [Line Items]
Short-term borrowings		$ 536.2		$ 536.2		$ 83.5
Variable Interest Entity, Primary Beneficiary \| NEOM Green Hydrogen Company
Variable Interest Entity [Line Items]
Voting interest in joint venture				33.30%
Value of engineering, procurement, and construction agreement	$ 6,700.0
Short-term borrowings		71.0		$ 71.0		51.6
Variable Interest Entity, Primary Beneficiary \| NEOM Green Hydrogen Company \| De-designated interest rate swap
Variable Interest Entity [Line Items]
Unrealized gain (loss) on de-designated cash flow hedging instruments, before tax		(0.3)	$ 11.2	27.0	$ 11.2
Unrealized gain (loss) on de-designated cash flow hedging instruments, attributable to noncontrolling interest, before tax		(0.1)	7.3	17.6	7.3
Unrealized gain (loss) on de-designated cash flow hedging instruments attributable to Air Products, after tax		(0.1)	$ 3.0	7.2	$ 3.0
Variable Interest Entity, Primary Beneficiary \| Nonrecourse \| NEOM Green Hydrogen Company
Variable Interest Entity [Line Items]
Total principal borrowings		4,600.0		4,600.0		3,300.0
Variable Interest Entity, Primary Beneficiary \| NEOM Green Hydrogen Project Financing, Primary \| Nonrecourse \| NEOM Green Hydrogen Company
Variable Interest Entity [Line Items]
Project financing maximum borrowing capacity		$ 6,100.0		$ 6,100.0
Amount of expected debt funding (percent)		73.00%		73.00%
Variable Interest Entity, Primary Beneficiary \| NEOM Green Hydrogen Project Financing, Working Capital \| Nonrecourse \| NEOM Green Hydrogen Company
Variable Interest Entity [Line Items]
Project financing maximum borrowing capacity		$ 500.0		$ 500.0
Variable Interest Entity, Primary Beneficiary \| Saudi Riyal Loan Facility Variable-Rate 5.60% \| NEOM Green Hydrogen Company
Variable Interest Entity [Line Items]
Short-term borrowings		$ 71.1		$ 71.1		$ 51.6
Interest rate, variable percentage		6.30%		6.30%