Derivative Instruments and Hedging Activities (Tables)

12 Months Ended

Sep. 30, 2021

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Notional Amounts Related to Open Derivative Contracts

The following table summarizes by derivative type the gross notional amounts related to open derivative contracts at September 30, 2021 and 2020 and the final settlement dates of the Company's open derivative contracts as of September 30, 2021, excluding those derivatives that qualified for the NPNS exception:

			Notional Amounts (in millions)
			September 30,
Type	Units	Settlements Extending Through	2021		2020
Commodity Price Risk:
Regulated Utility Operations
Gas Utility NYMEX natural gas futures and option contracts	Dekatherms	September 2022	20		22
Non-utility Operations
LPG swaps	Gallons	November 2023	708		846
Natural gas futures, forward, basis swap, options and pipeline contracts	Dekatherms	April 2026	355		339
Electricity forward and futures contracts	Kilowatt hours	January 2026	4,302		4,705
Interest Rate Risk:
Interest rate swaps	Euro	October 2022	€	300	€	300
Interest rate swaps	USD	September 2024	$	1,421	$	1,344
Foreign Currency Exchange Rate Risk:
Forward foreign exchange contracts	USD	September 2024	$	509	$	511
Net investment hedge forward foreign exchange contracts	Euro	October 2024	€	173	€	173

Schedule of Derivative Assets, Liabilities and the Effects of Offsetting

The following table presents the Company’s derivative assets and liabilities by type, as well as the effects of offsetting, as of September 30:

	2021		2020
Derivative assets:
Derivatives designated as hedging instruments:
Foreign currency contracts	$	20	$	17
Derivatives subject to PGC and DS mechanisms:
Commodity contracts	58		7
Derivatives not designated as hedging instruments:
Commodity contracts	1,591		100
Foreign currency contracts	18		15
	1,609		115
Total derivative assets – gross	1,687		139
Gross amounts offset in the balance sheet	(216)		(57)
Cash collateral received	(468)		—
Total derivative assets – net	$	1,003	$	82
Derivative liabilities:
Derivatives designated as hedging instruments:
Interest rate contracts	$	(29)	$	(55)
Derivatives subject to PGC and DS mechanisms:
Commodity contracts	(23)		—
Derivatives not designated as hedging instruments:
Commodity contracts	(257)		(118)
Foreign currency contracts	(8)		(14)
	(265)		(132)
Total derivative liabilities – gross	(317)		(187)
Gross amounts offset in the balance sheet	216		57
Cash collateral pledged	3		7
Total derivative liabilities – net	$	(98)	$	(123)

Effects of Derivative Instruments on Condensed Consolidated Statements of Income and Changes in AOCI and Noncontrolling Interest

The following tables provide information on the effects of derivative instruments on the Consolidated Statements of Income and changes in AOCI for Fiscal 2021, Fiscal 2020 and Fiscal 2019:

	Gain (Loss) Recognized in AOCI						Gain (Loss) Reclassified from AOCI into Income						Location of Gain (Loss) Reclassified from AOCI into Income
	2021		2020		2019		2021		2020		2019
Cash Flow Hedges:
Foreign currency contracts	$	—	$	—	$	1	$	—	$	—	$	2	Cost of sales
Interest rate contracts	4		(53)		(11)		(25)		(13)		(6)		Interest expense
Total	$	4	$	(53)	$	(10)	$	(25)	$	(13)	$	(4)
Net Investment Hedges:
Foreign currency contracts	$	4	$	(1)	$	17

	Gain (Loss) Recognized in Income						Location of Gain (Loss) Recognized in Income
	2021		2020		2019
Derivatives Not Designated as Hedging Instruments:
Commodity contracts	$	(17)	$	10	$	7	Revenues
Commodity contracts	1,545		(32)		(344)		Cost of sales
Commodity contracts	5		—		—		Other operating income, net
Foreign currency contracts	9		(20)		38		Other non-operating income (expense), net
Total	$	1,542	$	(42)	$	(299)