Income Taxes (Tables)

12 Months Ended

Sep. 30, 2018

Income Tax Disclosure [Abstract]

Income Before Income Taxes

Income before income taxes comprises the following:

	2018		2017		2016
Domestic	$	576.0	$	527.3	$	518.9
Foreign	278.5		174.1		191.1
Total income before income taxes	$	854.5	$	701.4	$	710.0

Provisions for Income Taxes

The provisions for income taxes consist of the following:

	2018			2017			2016
Current expense (benefit):
Federal	$	(2.7	)	$	(2.7	)	$	44.2
State	26.0			14.0			20.9
Foreign	77.6			56.2			78.7
Total current expense	100.9			67.5			143.8
Deferred expense (benefit):
Federal	(77.1		)	125.8			81.2
State	6.7			16.4			1.3
Foreign	1.9			(31.8		)	(4.8		)
Investment tax credit amortization	(0.3		)	(0.3		)	(0.3		)
Total deferred expense	(68.8		)	110.1			77.4
Total income tax expense	$	32.1		$	177.6		$	221.2

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:

	2018		2017		2016
U.S. federal statutory tax rate	24.5	%	35.0	%	35.0	%
Difference in tax rate due to:
Effect of tax rate changes - TJCA	(20.9	)	—		—
Effect of tax rate changes - France	(2.1	)	(4.1	)	—
Noncontrolling interests not subject to tax	(3.0	)	(4.3	)	(6.2	)
State income taxes, net of federal benefit	2.9		2.9		3.0
Valuation allowance adjustments	1.1		(1.1	)	(0.9	)
Effects of foreign operations	3.1		(1.1	)	0.6
Excess tax benefits on share-based payments	(1.1	)	(1.3	)	—
Other, net	(0.7	)	(0.7	)	(0.3	)
Effective tax rate	3.8	%	25.3	%	31.2	%

Deferred Tax Liabilities (Assets)

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

	2018			2017
Excess book basis over tax basis of property, plant and equipment	$	807.8		$	975.8
Investment in AmeriGas Partners	219.2			326.8
Intangible assets and goodwill	67.6			98.2
Utility regulatory assets	86.7			132.2
Derivative instruments	30.4			—
Other	10.6			11.7
Gross deferred tax liabilities	1,222.3			1,544.7
Pension plan liabilities	(20.0		)	(57.7		)
Employee-related benefits	(43.6		)	(65.4		)
Operating loss carryforwards	(26.2		)	(30.9		)
Foreign tax credit carryforwards	(106.1		)	(106.1		)
Utility regulatory liabilities	(118.6		)	(9.3		)
Derivative instruments	—			(1.7		)
Utility environmental liabilities	(14.7		)	(22.2		)
Other	(29.0		)	(27.8		)
Gross deferred tax assets	(358.2		)	(321.1		)
Deferred tax assets valuation allowance	116.8			107.1
Net deferred tax liabilities	$	980.9		$	1,330.7

Reconciliation of Unrecognized Tax Benefits

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

	2018			2017			2016
Unrecognized tax benefits — beginning of year	$	12.2		$	7.2		$	3.2
Additions for tax positions of the current year	1.5			1.9			2.2
Additions for tax positions taken in prior years	0.6			4.6			2.3
Settlements with tax authorities/statute lapses	(2.8		)	(1.5		)	(0.5		)
Unrecognized tax benefits — end of year	$	11.5		$	12.2		$	7.2