Segment Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Sep. 30, 2013
Segment information
Revenues	$ 2,315.9		$ 2,018.7
Cost of sales	1,429.9		1,215.5
Segment profit:
Operating income (loss)	363.7		294.2
Income from equity investees	0		0
Interest expense	(59.3)		(61.5)
Income (loss) before income taxes	304.4		232.7
Noncontrolling interests' net income (loss)	95.5		65.3
Depreciation and amortization	94.0		87.8
Capital expenditures	102.8		91.3
Total assets (at period end)	10,663.5		10,138.3		10,008.8
Bank loans (at period end)	421.5		333.2		227.9
Goodwill (at period end)	2,884.5		2,835.0		2,871.0
Eliminations [Member]
Segment information
Revenues	(65.5)	[1]	(58.5)	[1]
Cost of sales	(64.4)	[1]	(57.3)	[1]
Segment profit:
Operating income (loss)	(0.1)	[1]
Income (loss) before income taxes	(0.1)		0
Depreciation and amortization	0
Capital expenditures	(1.2)
Total assets (at period end)	(101.1)		(101.5)
AmeriGas Propane [Member]
Segment information
Revenues	1,045.8		871.9
Cost of sales	582.7		449.3
Segment profit:
Operating income (loss)	179.7		137.3
Interest expense	(41.6)		(42.4)
Income (loss) before income taxes	138.1		94.9
Partnership EBITDA	230.2	[2]	185.9	[2]
Noncontrolling interests' net income (loss)	95.4		65.2
Depreciation and amortization	52.3		50.1
Capital expenditures	23.3		26.5
Total assets (at period end)	4,682.3		4,687.1
Bank loans (at period end)	208.8		177.2
Goodwill (at period end)	1,938.8		1,919.2
Noncontrolling Interests Principally General Partners Interest in Related Parties	1.8	[3]	1.5	[3]
Gas Utility [Member]
Segment information
Revenues	271.6		248.3
Cost of sales	135.5		123.6
Segment profit:
Operating income (loss)	82.1		69.8
Interest expense	(8.4)		(9.6)
Income (loss) before income taxes	73.7		60.2
Depreciation and amortization	13.4		12.6
Capital expenditures	32.9		28.5
Total assets (at period end)	2,188.6		2,144.7
Bank loans (at period end)	73.5		73.1
Goodwill (at period end)	182.1		182.1
Midstream And Marketing, Energy Services [Member]
Segment information
Revenues	272.7		227.8
Cost of sales	227.1		189.5
Segment profit:
Operating income (loss)	31.8		25.7
Interest expense	(1.0)		(1.0)
Income (loss) before income taxes	30.8		24.7
Depreciation and amortization	2.6		1.6
Capital expenditures	21.7		13.5
Total assets (at period end)	574.8		396.7
Bank loans (at period end)	124.5		69.0
Goodwill (at period end)	2.8		2.8
Midstream & Marketing, Electric Generation [Member]
Segment information
Revenues	20.8		14.9
Cost of sales	10.6		9.6
Segment profit:
Operating income (loss)	4.4		0.2
Interest expense	0		0
Income (loss) before income taxes	4.4		0.2
Depreciation and amortization	2.6		2.5
Capital expenditures	9.3		6.8
Total assets (at period end)	279.3		261.2
Bank loans (at period end)	0		0
Goodwill (at period end)	0		0
International Propane, Antargaz [Member]
Segment information
Revenues	425.3		419.3
Cost of sales	282.5		279.9
Segment profit:
Operating income (loss)	43.2		47.5
Income from equity investees	0		0
Interest expense	(6.4)		(6.5)
Income (loss) before income taxes	36.8		41.0
Noncontrolling interests' net income (loss)	0.1		0.1
Depreciation and amortization	15.0		14.1
Capital expenditures	9.8		12.2
Total assets (at period end)	1,938.9		1,828.2
Goodwill (at period end)	654.3		628.0
International Propane, Flaga & Other [Member]
Segment information
Revenues	293.3		245.6
Cost of sales	231.7		194.9
Segment profit:
Operating income (loss)	13.7		10.3
Interest expense	(1.3)		(1.3)
Income (loss) before income taxes	12.4		9.0
Noncontrolling interests' net income (loss)	0
Depreciation and amortization	6.6		5.5
Capital expenditures	4.6		2.2
Total assets (at period end)	696.5		564.1
Bank loans (at period end)	14.7		13.9
Goodwill (at period end)	99.5		95.9
Corporate & Other [Member]
Segment information
Revenues	51.9	[4]	49.4	[4]
Cost of sales	24.2	[4]	26.0	[4]
Segment profit:
Operating income (loss)	8.9	[4]	3.4	[4]
Interest expense	(0.6)	[4]	(0.7)	[4]
Income (loss) before income taxes	8.3	[4]	2.7	[4]
Depreciation and amortization	1.5	[4]	1.4	[4]
Capital expenditures	2.4	[4]	1.6	[4]
Total assets (at period end)	404.2	[4]	357.8	[4]
Goodwill (at period end)	$ 7.0	[4]	$ 7.0	[4]

[1] Corporate & Other results principally comprise (1) Electric Utility, (2) Enterprises’ heating, ventilation, air-conditioning, refrigeration and electrical contracting businesses (“HVAC”), (3) changes in the fair values of Midstream & Marketing’s unsettled commodity derivative instruments and gains and losses on settled commodity derivative instruments not associated with current period transactions, (4) net expenses of UGI’s captive general liability insurance company, and (5) UGI Corporation’s unallocated corporate and general expenses and interest income. Corporate & Other assets principally comprise cash, short-term investments, the assets of Electric Utility and HVAC, and an intercompany loan. The intercompany loan and associated interest is removed in the segment presentation.

[2] The following table provides a reconciliation of Partnership EBITDA to AmeriGas Propane operating income:Three Months Ended December 31, 2013 2012Partnership EBITDA $230.2 185.9Depreciation and amortization (52.3) (50.1)Noncontrolling interests (i) 1.8 1.5Operating income $179.7 $137.3(i)Principally represents the General Partner’s 1.01% interest in AmeriGas OLP.

[3] Principally represents the General Partner’s 1.01% interest in AmeriGas OLP.

[4] i