Income Taxes (Tables)

12 Months Ended

Sep. 30, 2019

Income Tax Disclosure [Abstract]

Income Before Income Taxes

Income before income taxes comprises the following:

	2019		2018		2017
Domestic	$	329.4	$	576.0	$	527.3
Foreign	71.1		278.5		174.1
Total income before income taxes	$	400.5	$	854.5	$	701.4

Provisions for Income Taxes

The provisions for income taxes consist of the following:

	2019			2018			2017
Current expense (benefit):
Federal	$	51.7		$	(2.7	)	$	(2.7	)
State	14.0			26.0			14.0
Foreign	69.6			77.6			56.2
Total current expense	135.3			100.9			67.5
Deferred expense (benefit):
Federal	2.9			(77.1		)	125.8
State	3.5			6.7			16.4
Foreign	(48.8		)	1.9			(31.8		)
Investment tax credit amortization	(0.3		)	(0.3		)	(0.3		)
Total deferred expense	(42.7		)	(68.8		)	110.1
Total income tax expense	$	92.6		$	32.1		$	177.6

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:

	2019		2018		2017
U.S. federal statutory tax rate	21.0	%	24.5	%	35.0	%
Difference in tax rate due to:
Effect of tax rate changes - TJCA	0.2		(20.9	)	—
Effect of tax rate changes - International	(0.5	)	(2.1	)	(4.1	)
Noncontrolling interests not subject to tax	(2.7	)	(3.0	)	(4.3	)
State income taxes, net of federal benefit	3.6		2.9		2.9
Valuation allowance adjustments	—		1.1		(1.1	)
Effects of foreign operations	1.8		3.1		(1.1	)
Excess tax benefits on share-based payments	(1.0	)	(1.1	)	(1.3	)
Other, net	0.7		(0.7	)	(0.7	)
Effective tax rate	23.1	%	3.8	%	25.3	%

Deferred Tax Liabilities (Assets)

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

	2019			2018
Excess book basis over tax basis of property, plant and equipment	$	804.5		$	807.8
Investment in AmeriGas Partners	—			219.2
Utility regulatory assets	107.6			86.7
Intangible assets and goodwill	70.5			67.6
Derivative instruments	—			30.4
Other	8.3			10.6
Gross deferred tax liabilities	990.9			1,222.3
Investment in AmeriGas Partners	(303.5		)	—
Pension plan liabilities	(49.9		)	(20.0		)
Employee-related benefits	(43.8		)	(43.6		)
Operating loss carryforwards	(21.2		)	(26.2		)
Foreign tax credit carryforwards	(81.4		)	(106.1		)
Utility regulatory liabilities	(94.3		)	(118.6		)
Derivative instruments	(15.3		)	—
Utility environmental liabilities	(15.3		)	(14.7		)
Other	(33.4		)	(29.0		)
Gross deferred tax assets	(658.1		)	(358.2		)
Deferred tax assets valuation allowance	90.7			116.8
Net deferred tax liabilities	$	423.5		$	980.9

Reconciliation of Unrecognized Tax Benefits

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

	2019			2018			2017
Unrecognized tax benefits — beginning of year	$	11.5		$	12.2		$	7.2
Additions for tax positions of the current year	0.9			1.5			1.9
Additions for tax positions taken in prior years	0.4			0.6			4.6
Settlements with tax authorities/statute lapses	(1.9		)	(2.8		)	(1.5		)
Unrecognized tax benefits — end of year	$	10.9		$	11.5		$	12.2