Income Taxes (Tables)

12 Months Ended

Sep. 30, 2024

Income Tax Disclosure [Abstract]

Schedule of Income (Loss) Before Income Taxes

Income (loss) before income taxes comprises the following:

	2024		2023		2022
Domestic	$	305	$	(346)	$	362
Foreign	35		(1,491)		1,025
Total income (loss) before income taxes	$	340	$	(1,837)	$	1,387

Schedule of Provisions for Income Taxes

The provisions for income taxes consist of the following:

	2024		2023		2022
Current expense (benefit):
Federal	$	(25)	$	(1)	$	24
State	12		37		18
Foreign	32		49		50
Total current expense	19		85		92
Deferred expense (benefit):
Federal	82		34		45
State	34		(21)		(17)
Foreign	(64)		(433)		193
Total deferred expense (benefit)	52		(420)		221
Total income tax expense (benefit)	$	71	$	(335)	$	313

Schedule of Reconciliation of U.S. Federal Statutory Tax Rate to Effective Tax Rate

A reconciliation from the U.S. federal statutory tax rate to our effective tax rate is as follows:

	2024		2023		2022
U.S. federal statutory tax rate	21.0	%	21.0	%	21.0	%
Difference in tax rate due to:
Goodwill impairment not deductible for tax	11.6		(7.3)		—
State income taxes, net of federal benefit	6.8		(1.7)		2.3
Investment tax credits	(6.8)		0.5		—
Valuation allowance adjustments	(6.3)		1.1		(0.5)
Regulated entity depreciation normalization	(4.5)		0.7		(0.8)
Notional interest deduction	(3.8)		0.7		(0.9)
Effects of tax rate changes – State, net of federal benefit	3.6		0.2		(1.4)
State NOL adjustment upon disposition	2.4		—		—
Uncertain tax positions	(2.4)		(0.7)		—
Impairment of equity investment	2.2		—		—
Federal refund interest accrual	(1.1)		—		—
Effects of foreign operations	0.1		3.1		5.3
Effects of tax rate changes - International	—		—		(2.3)
Other, net	(1.9)		0.6		(0.1)
Effective tax rate	20.9	%	18.2	%	22.6	%

Schedule of Deferred Tax Liabilities (Assets)

Deferred tax liabilities (assets) comprise the following at September 30:

	2024		2023
Excess book basis over tax basis of property, plant and equipment	$	994	$	966
Intangible assets and goodwill	86		81
Utility regulatory assets	74		84
Investment in AmeriGas Partners	31		—
Derivative instrument assets	—		19
Other	50		37
Gross deferred tax liabilities	1,235		1,187
Interest expense	(118)		(83)
Operating loss carryforwards	(72)		(75)
Utility regulatory liabilities	(72)		(83)
Foreign tax credit carryforwards	(49)		(64)
Employee-related benefits	(33)		(37)
Investment tax credits	(26)		—
Utility environmental liabilities	(16)		(15)
Pension plan liabilities	(8)		(14)
Derivative instrument liabilities	(3)		—
Investment in AmeriGas Partners	—		(28)
Other	(58)		(58)
Gross deferred tax assets	(455)		(457)
Deferred tax assets valuation allowance	130		141
Net deferred tax liabilities	$	910	$	871

Schedule of Reconciliation of Unrecognized Tax Benefits

A reconciliation of the beginning and ending amounts of unrecognized tax benefits is as follows:

	2024		2023		2022
Unrecognized tax benefits — beginning of year	$	26	$	5	$	3
Additions for tax positions of the current year	4		3		2
Decreases for tax positions taken in prior years	(11)		—		—
Increases for tax positions taken in prior years	—		19		1
Settlements with tax authorities/statute lapses	(1)		(1)		(1)
Unrecognized tax benefits — end of year	$	18	$	26	$	5