Accumulated Other Comprehensive Loss (Tables)

6 Months Ended

Mar. 31, 2026

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

Schedule of Accumulated Other Comprehensive Loss

The tables below summarize changes in accumulated other comprehensive loss ("AOCL"), net of tax, attributable to Air Products for the three and six months ended 31 March 2026:

	Derivatives qualifying as hedges	Foreign currency translation adjustments	Pension and postretirement benefits	Total
Balance at 31 December 2025	$74.1	($1,564.2)	($487.0)	($1,977.1)
Other comprehensive loss before reclassifications	(0.9)	(105.5)	—	(106.4)
Amounts reclassified from AOCL	16.3	—	9.9	26.2
Net current period other comprehensive income (loss)	15.4	(105.5)	9.9	(80.2)
Amount attributable to noncontrolling interests	2.3	(2.1)	—	0.2
Balance at 31 March 2026	$87.2	($1,667.6)	($477.1)	($2,057.5)

	Derivatives qualifying as hedges	Foreign currency translation adjustments	Pension and postretirement benefits	Total
Balance at 30 September 2025	$49.3	($1,640.7)	($496.4)	($2,087.8)
Other comprehensive income (loss) before reclassifications	34.6	(32.0)	—	2.6
Amounts reclassified from AOCL	32.9	—	19.2	52.1
Net current period other comprehensive income (loss)	67.5	(32.0)	19.2	54.7
Amount attributable to noncontrolling interests	29.6	(5.1)	(0.1)	24.4
Balance at 31 March 2026	$87.2	($1,667.6)	($477.1)	($2,057.5)

Schedule of Reclassification 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:

	Three Months Ended		Six Months Ended
	31 March		31 March
	2026	2025	2026	2025
Loss (Gain) on Cash Flow Hedges, net of tax
Sales	($0.2)	$0.1	($1.1)	$0.3
Cost of sales	(0.5)	5.2	(0.3)	6.0
Interest expense	(0.3)	—	(0.6)	0.3
Other non-operating income (expense), net	17.3	(12.3)	34.9	78.3
Total Loss (Gain) on Cash Flow Hedges, net of tax	$16.3	($7.0)	$32.9	$84.9
Currency translation adjustment associated with business and asset actions	$—	$2.5	$—	$2.5
Pension and Postretirement Benefits, net of tax(A)	$9.9	$11.0	$19.2	$22.0

(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 11, Retirement Benefits, for additional information.