Accumulated Other Comprehensive Loss (Tables)

12 Months Ended

Sep. 30, 2025

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss)

The table below summarizes changes in accumulated other comprehensive loss ("AOCL"), net of tax, attributable to Air Products:

	Derivatives qualifying as hedges	Foreign currency translation adjustments	Pension and postretirement benefits	Total
Balance at 30 September 2022	($71.9)	($2,072.4)	($641.8)	($2,786.1)
Other comprehensive income (loss) before reclassifications	369.2	151.1	(8.9)	511.4
Amounts reclassified from AOCL	(43.9)	(0.3)	53.8	9.6
Net current period other comprehensive income	$325.3	$150.8	$44.9	$521.0
Amount attributable to noncontrolling interests	192.3	(8.3)	0.3	184.3
Balance at 30 September 2023	$61.1	($1,913.3)	($597.2)	($2,449.4)
Other comprehensive (loss) income before reclassifications	(159.5)	381.5	32.0	254.0
Amounts reclassified from AOCL	(33.7)	(1.5)	55.9	20.7
Net current period other comprehensive (loss) income	($193.2)	$380.0	$87.9	$274.7
Amount attributable to noncontrolling interests	(159.3)	12.0	0.3	(147.0)
Balance at 30 September 2024	$27.2	($1,545.3)	($509.6)	($2,027.7)
Other comprehensive income (loss) before reclassifications	40.0	(95.6)	(32.3)	(87.9)
Amounts reclassified from AOCL	41.2	5.7	46.0	92.9
Net current period other comprehensive income (loss)	$81.2	($89.9)	$13.7	$5.0
Amount attributable to noncontrolling interests	59.1	5.5	0.5	65.1
Balance at 30 September 2025	$49.3	($1,640.7)	($496.4)	($2,087.8)

Schedule of Reclassifications out of Accumulated Other Comprehensive Loss

The table below summarizes the reclassifications out of AOCL and the affected line item on the consolidated income statements:

Fiscal Year Ended 30 September	2025	2024	2023
Loss (Gain) on Cash Flow Hedges, net of tax
Sales	($0.2)	$—	($0.5)
Cost of sales	6.0	1.9	3.7
Interest expense	(0.1)	2.3	3.5
Other non-operating income (expense), net	35.5	(37.9)	(50.6)
Total Loss (Gain) on Cash Flow Hedges, net of tax	$41.2	($33.7)	($43.9)
Currency Translation Adjustment
Gain on sale of business	$0.1	($1.5)	$—
Business and asset actions	1.0	—	(0.3)
Other income (expense), net	4.6	—	—
Currency Translation Adjustment	$5.7	($1.5)	($0.3)
Pension and Postretirement Benefits, net of tax(A)	$46.0	$55.9	$53.8

(A)The components of net periodic benefit cost reclassified out of AOCL include items such as prior service cost amortization, actuarial loss amortization, settlements, and curtailments and are included in “Other non-operating income (expense), net” on the consolidated income statements. Refer to Note 18, Retirement Benefits, for additional information.