Derivative Instruments and Hedging Activities (Tables)

9 Months Ended

Jun. 30, 2022

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 June 30, 2022, September 30, 2021 and June 30, 2021, and the final settlement dates of the Company's open derivative contracts as of June 30, 2022, excluding those derivatives that qualified for the NPNS exception:

			Notional Amounts (in millions)
Type	Units	Settlements Extending Through	June 30, 2022		September 30, 2021		June 30, 2021
Commodity Price Risk:
Regulated Utility Operations
PA Gas Utility NYMEX natural gas futures and option contracts	Dekatherms	October 2023	13		20		12
Non-utility Operations
LPG swaps	Gallons	September 2024	669		708		688
Natural gas futures, forward, basis swap, options and pipeline contracts	Dekatherms	June 2026	353		355		344
Electricity forward and futures contracts	Kilowatt hours	November 2026	2,621		4,302		4,730
Interest Rate Risk:
Interest rate swaps	Euro	October 2022	€	300	€	300	€	300
Interest rate swaps	USD	September 2024	$	1,411	$	1,421	$	1,424
Foreign Currency Exchange Rate Risk:
Forward foreign currency exchange contracts	USD	August 2025	$	435	$	509	$	504
Net investment hedge forward foreign exchange contracts	Euro	December 2026	€	411	€	173	€	173

Schedule of Derivative Assets, Liabilities and Effects of Offsetting

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

	June 30, 2022		September 30, 2021		June 30, 2021
Derivative assets:
Derivatives designated as hedging instruments:
Foreign currency contracts	$	28	$	20	$	15
Interest rate contracts	44		—		—
	72		20		15
Derivatives subject to PGC and DS mechanisms:
Commodity contracts	30		58		14
Derivatives not designated as hedging instruments:
Commodity contracts	1,935		1,591		623
Foreign currency contracts	31		18		9
	1,966		1,609		632
Total derivative assets — gross	2,068		1,687		661
Gross amounts offset in the balance sheet	(226)		(216)		(77)
Cash collateral received	(659)		(468)		(105)
Total derivative assets — net	$	1,183	$	1,003	$	479
Derivative liabilities:
Derivatives designated as hedging instruments:
Interest rate contracts	$	—	$	(29)	$	(35)
Derivatives subject to PGC and DS mechanisms:
Commodity contracts	(23)		(23)		(6)
Derivatives not designated as hedging instruments:
Commodity contracts	(338)		(257)		(139)
Foreign currency contracts	(2)		(8)		(13)
	(340)		(265)		(152)
Total derivative liabilities — gross	(363)		(317)		(193)
Gross amounts offset in the balance sheet	226		216		77
Cash collateral pledged	13		3		—
Total derivative liabilities — net	$	(124)	$	(98)	$	(116)

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

The following tables provide information on the effects of derivative instruments on the Condensed Consolidated Statements of Income and changes in AOCI:

Three Months Ended June 30,:
	Gain (Loss) Recognized in AOCI				Loss Reclassified from AOCI into Income				Location of Loss Reclassified from AOCI into Income
Cash Flow Hedges:	2022		2021		2022		2021
Interest rate contracts	$	11	$	(1)	$	(4)	$	(6)	Interest expense
Net Investment Hedges:
Foreign currency contracts	$	23	$	(1)
	Gain (Loss) Recognized in Income
Derivatives Not Designated as Hedging Instruments:	2022		2021		Location of Gain (Loss) Recognized in Income
Commodity contracts	$	(6)	$	(5)	Revenues
Commodity contracts	466		347		Cost of sales
Commodity contracts	6		—		Other operating income, net
Foreign currency contracts	17		(1)		Other non-operating income, net
Total	$	483	$	341
Nine Months Ended June 30,:
	Gain (Loss) Recognized in AOCI				Loss Reclassified from AOCI into Income				Location of Loss Reclassified from AOCI into Income
Cash Flow Hedges:	2022		2021		2022		2021
Interest rate contracts	$	59	$	5	$	(17)	$	(19)	Interest expense
Net Investment Hedges:
Foreign currency contracts	$	34	$	(2)
	Gain (Loss) Recognized in Income
Derivatives Not Designated as Hedging Instruments:	2022		2021		Location of Gain (Loss) Recognized in Income
Commodity contracts	$	(5)	$	(4)	Revenues
Commodity contracts	792		585		Cost of sales
Commodity contracts	6		5		Other operating income, net
Foreign currency contracts	32		(4)		Other non-operating income, net
Total	$	825	$	582