Financial Instruments (Tables)

6 Months Ended

Mar. 31, 2026

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Notional Amounts of Outstanding Derivative Instruments

The table below summarizes our outstanding currency price risk management instruments:

	31 March 2026		30 September 2025
	US$ Notional	Years Average Maturity	US$ Notional	Years Average Maturity
Forward Exchange Contracts:
Cash flow hedges	$4,250.1	0.5	$3,625.5	0.6
Net investment hedges	76.8	0.3	73.9	0.8
Not designated	2,105.2	1.2	2,968.6	1.2
Total Forward Exchange Contracts	$6,432.1	0.7	$6,668.0	0.9

The table below summarizes our outstanding interest rate management contracts and cross currency interest rate swaps:

	31 March 2026						30 September 2025
	US$ Notional	Average Pay %		Average Receive %		Years Average Maturity	US$ Notional	Average Pay %		Average Receive %		Years Average Maturity
Interest rate swaps (fair value hedge)	$600.0	SOFR		1.80	%	2.1	$800.0	SOFR		1.64	%	2.0
Interest rate swaps (cash flow hedge)(A)	$3,563.1	2.82	%	SOFR		19.6	$3,106.0	2.78	%	SOFR		20.1
Interest rate swaps (not designated)(A)	$—	—	%	SOFR		0.0	$269.1	3.28	%	SOFR		20.2
Cross currency interest rate swaps (net investment hedge)	$2,054.9	2.08	%	3.70	%	2.1	$70.3	4.86	%	4.53	%	0.5
Cross currency interest rate swaps (cash flow hedge)	$84.2	4.70	%	2.88	%	0.9	$247.7	5.21	%	3.12	%	1.6
Cross currency interest rate swaps (not designated)	$15.4	0.15	%	1.85	%	1.1	$—	—	%	—	%	0.0

(A)We temporarily discontinued cash flow hedge accounting for certain floating-to-fixed interest rate swaps related to project financing for the NEOM Green Hydrogen Project beginning in the third quarter of fiscal year 2024 due to changes in the anticipated drawdown timeline for the hedged borrowings. As of 1 January 2026, all swaps were re-designated as cash flow hedges. Refer to Note 3, Variable Interest Entities, for additional information.

Schedule of Cumulative Basis Adjustments for Fair Value Hedges

The table below provides the amounts recorded on the consolidated balance sheet related to cumulative basis adjustments for fair value hedges:

	Carrying amounts of hedged item		Cumulative hedging adjustment, included in carrying amount
	31 March	30 September	31 March	30 September
Balance Sheet Location	2026	2025	2026	2025
Current portion of long-term debt	$—	$549.7	$—	($0.3)
Long-term debt	$1,524.7	$1,522.5	($21.5)	($23.1)

Schedule of Fair Value and Balance Sheet Location of Derivative Instruments

The table below summarizes the fair value and balance sheet location of our outstanding derivatives:

	Balance Sheet Location	31 March	30 September	Balance Sheet Location	31 March	30 September
		2026	2025		2026	2025
Derivatives Designated as Hedging Instruments:
Forward exchange contracts	Other receivables and current assets	$57.4	$50.7	Payables and accrued liabilities	$63.2	$21.4
Interest rate management contracts	Other receivables and current assets	3.2	13.1	Payables and accrued liabilities	2.0	0.3
Forward exchange contracts	Other noncurrent assets	15.5	10.1	Other noncurrent liabilities	2.4	3.4
Interest rate management contracts	Other noncurrent assets	248.0	138.2	Other noncurrent liabilities	81.7	23.8
Total Derivatives Designated as Hedging Instruments		$324.1	$212.1		$149.3	$48.9
Derivatives Not Designated as Hedging Instruments:
Forward exchange contracts	Other receivables and current assets	$4.3	$17.8	Payables and accrued liabilities	$4.4	$14.2
Forward exchange contracts	Other noncurrent assets	—	2.7	Other noncurrent liabilities	28.2	30.5
Interest rate management contracts	Other noncurrent assets	—	11.8	Other noncurrent liabilities	0.6	—
Total Derivatives Not Designated as Hedging Instruments		$4.3	$32.3		$33.2	$44.7
Total Derivatives		$328.4	$244.4		$182.5	$93.6

Schedule of Gains and Losses Recognized in Other Comprehensive Income Related Net Investment and Cash Flow Hedges

The tables below summarize gains (losses) recognized in other comprehensive income during the period related to our net investment and cash flow hedging relationships:

	Three Months Ended		Six Months Ended
	31 March		31 March
	2026	2025	2026	2025
Net Investment Hedging Relationships
Forward exchange contracts	$1.7	($20.0)	($3.4)	$33.9
Foreign currency debt	59.0	(112.4)	54.8	28.0
Cross currency interest rate swaps(A)	5.5	—	(2.7)	0.4
Total Amount Recognized in OCI	66.2	(132.4)	48.7	62.3
Tax effects	(15.9)	32.1	(11.7)	(15.4)
Net Amount Recognized in OCI	$50.3	($100.3)	$37.0	$46.9

(A)Excluded components for cross currency interest rate swaps are recognized in “Payables and accrued liabilities” and “Other receivables and current assets” as a component of accrued interest payable and accrued interest receivable, respectively. These excluded components are recorded in “Other non-operating income (expense), net” over the life of the cross currency interest rate swap consistent with forward exchange contracts.

	Three Months Ended		Six Months Ended
	31 March		31 March
	2026	2025	2026	2025
Derivatives in Cash Flow Hedging Relationships
Forward exchange contracts	($8.3)	$43.4	($9.1)	($134.4)
Forward exchange contracts, excluded components	(3.0)	(4.8)	(10.4)	(6.3)
Other(A)	8.3	(79.7)	52.9	143.3
Total Amount Recognized in OCI	(3.0)	(41.1)	33.4	2.6
Tax effects	2.1	(3.9)	1.2	18.1
Net Amount Recognized in OCI	($0.9)	($45.0)	$34.6	$20.7

(A)Other primarily includes interest rate and cross currency interest rate swaps for which excluded components are recognized in “Payables and accrued liabilities” and “Other receivables and current assets” as a component of accrued interest payable and accrued interest receivable, respectively. These excluded components are recorded in “Other non-operating income (expense), net” over the life of the cross currency interest rate swap consistent with forward exchange contracts. Other also includes the recognition of our share of gains and losses, net of tax, related to interest rate swaps held by our equity affiliates.

Schedule of Amounts Recognized in Income Related to Cash Flow and Fair Value Hedges

The tables below summarize the location and amounts recognized in income related to our cash flow and fair value hedging relationships by contract type:

	Three Months Ended 31 March
	Sales		Cost of Sales		Interest Expense		Other Non-Operating Income (Expense), Net
	2026	2025	2026	2025	2026	2025	2026	2025
Total presented in consolidated income statements that includes effects of hedging below	$3,171.8	$2,916.2	$2,184.4	$2,053.9	$49.5	$42.2	$0.9	($18.6)
(Gain) Loss Effects of Cash Flow Hedging:
Forward Exchange Contracts:
Amount reclassified from OCI into income	($0.2)	$0.2	($0.7)	$6.7	$—	$—	$17.8	($24.9)
Amount excluded from effectiveness testing recognized in earnings based on amortization approach	—	—	—	—	—	—	5.3	4.3
Other:
Amount reclassified from OCI into income	—	—	—	—	(0.4)	—	(0.3)	4.4
Total (Gain) Loss Reclassified from OCI to Income	(0.2)	0.2	(0.7)	6.7	(0.4)	—	22.8	(16.2)
Tax effects	—	(0.1)	0.2	(1.5)	0.1	—	(5.5)	3.9
Net (Gain) Loss Reclassified from OCI to Income	($0.2)	$0.1	($0.5)	$5.2	($0.3)	$—	$17.3	($12.3)
(Gain) Loss Effects of Fair Value Hedging:
Other:
Hedged items	$—	$—	$—	$—	($1.3)	$11.2	$—	$—
Derivatives designated as hedging instruments	—	—	—	—	1.3	(11.2)	—	—
Total (Gain) Loss Recognized in Income	$—	$—	$—	$—	$—	$—	$—	$—

	Six Months Ended 31 March
	Sales		Cost of Sales		Interest Expense		Other Non-Operating Income (Expense), Net
	2026	2025	2026	2025	2026	2025	2026	2025
Total presented in consolidated income statements that includes effects of hedging below	$6,274.3	$5,847.7	$4,291.9	$4,070.4	$104.0	$84.8	($0.5)	$20.3
(Gain) Loss Effects of Cash Flow Hedging:
Forward Exchange Contracts:
Amount reclassified from OCI into income	($1.3)	$0.4	($0.5)	$7.6	$—	$—	$25.0	$104.4
Amount excluded from effectiveness testing recognized in earnings based on amortization approach	—	—	—	—	—	—	10.8	10.4
Other:
Amount reclassified from OCI into income	—	—	—	—	(0.8)	0.5	9.7	(12.9)
Total (Gain) Loss Reclassified from OCI to Income	(1.3)	0.4	(0.5)	7.6	(0.8)	0.5	45.5	101.9
Tax effects	0.2	(0.1)	0.2	(1.6)	0.2	(0.2)	(10.6)	(23.6)
Net (Gain) Loss Reclassified from OCI to Income	($1.1)	$0.3	($0.3)	$6.0	($0.6)	$0.3	$34.9	$78.3
(Gain) Loss Effects of Fair Value Hedging:
Other:
Hedged items	$—	$—	$—	$—	$1.9	$0.3	$—	$—
Derivatives designated as hedging instruments	—	—	—	—	(1.9)	(0.3)	—	—
Total (Gain) Loss Recognized in Income	$—	$—	$—	$—	$—	$—	$—	$—

Schedule of Effects of Derivatives Not Designated as a Hedging Instrument

The tables below summarize the location and amounts recognized in income related to our derivatives not designated as hedging instruments by contract type:

	Three Months Ended 31 March
	Other Income (Expense), Net		Other Non-Operating Income (Expense), Net
	2026	2025	2026	2025
The Effects of Derivatives Not Designated as Hedging Instruments:
Forward exchange contracts	($0.7)	($2.8)	$0.2	$1.1
De-designated interest rate swaps	—	—	—	11.5
Other	—	—	0.3	—
Total (Gain) Loss Recognized in Income	($0.7)	($2.8)	$0.5	$12.6

	Six Months Ended 31 March
	Other Income (Expense), Net		Other Non-Operating Income (Expense), Net
	2026	2025	2026	2025
The Effects of Derivatives Not Designated as Hedging Instruments:
Forward exchange contracts	($0.2)	($6.7)	($0.2)	($0.8)
De-designated interest rate swaps	—	—	(1.9)	(27.3)
Other	—	—	0.8	(1.7)
Total (Gain) Loss Recognized in Income	($0.2)	($6.7)	($1.3)	($29.8)