Condensed Consolidated Statements of Cash Flows (unaudited) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 260.6	$ 357.1
Reconcile to net cash from operating activities:
Depreciation and amortization	227.7	168.6
Deferred income taxes, net	9.9	24.8
Provision for uncollectible accounts	21.3	19.8
Net change in realized gains and losses deferred as cash flow hedges	(11.7)	13.8
Loss on extinguishments of debt, net	13.3	18.8
Other, net	2.6	18.4
Net change in:
Accounts receivable and accrued utility revenues	71.2	(93.1)
Inventories	128.1	56.7
Utility deferred fuel costs	8.1	33.0
Accounts payable	(132.2)	(51.3)
Other current assets	22.8	(6.8)
Other current liabilities	(55.5)	(92.6)
Net cash provided by operating activities	566.2	467.2
CASH FLOWS FROM INVESTING ACTIVITIES
Expenditures for property, plant and equipment	(236.0)	(245.3)
Acquisitions of businesses, net of cash acquired	(1,573.7)	(49.6)
Decrease in restricted cash	9.6	24.6
Other	0.1	(1.7)
Net cash used by investing activities	(1,800.0)	(272.0)
CASH FLOWS FROM FINANCING ACTIVITIES
Dividends on UGI Common Stock	(88.7)	(84.7)
Distributions on AmeriGas Partners Common Units	(126.5)	(69.7)
Issuances of debt	1,550.4	981.5
Repayments of debt	(240.1)	(987.3)
Increase in bank loans	31.0	5.4
Receivables Facility net borrowings (repayments)	18.9	(12.1)
Issuances of UGI Common Stock	12.7	24.9
Issuance of AmeriGas Partners Common Units	276.6
Other	0.5	3.4
Net cash provided (used) by financing activities	1,434.8	(138.6)
EFFECT OF EXCHANGE RATE CHANGES ON CASH	(3.0)	0.5
Cash and cash equivalents increase	198.0	57.1
Cash and cash equivalents:
End of period	436.5	317.8
Beginning of period	238.5	260.7
Increase	198.0	57.1
AmeriGas Partners [Member]
CASH FLOWS FROM FINANCING ACTIVITIES
Issuance of AmeriGas Partners Common Units		$ 0