Condensed Consolidated Statements of Cash Flows (unaudited) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 337.1	$ 370.6
Reconcile to net cash from operating activities:
Depreciation and amortization	143.1	110.8
Deferred income taxes, net	11.0	17.9
Provision for uncollectible accounts	16.7	16.4
Net change in realized gains and losses deferred as cash flow hedges	(12.8)	12.0
Loss on extinguishment of debt	13.4	18.8
Other, net	(4.3)	14.1
Net change in:
Accounts receivable and accrued utility revenues	(293.9)	(449.3)
Inventories	102.0	104.4
Utility deferred fuel costs	14.0	43.3
Accounts payable	(17.3)	63.1
Other current assets	19.4	(13.8)
Other current liabilities	6.3	(16.2)
Net cash provided by operating activities	334.7	292.1
CASH FLOWS FROM INVESTING ACTIVITIES
Expenditures for property, plant and equipment	(152.3)	(167.4)
Acquisitions of businesses, net of cash acquired	(1,561.8)	(44.6)
Decrease in restricted cash	0.4	25.2
Other	(0.3)	1.5
Net cash used by investing activities	(1,714.0)	(185.3)
CASH FLOWS FROM FINANCING ACTIVITIES
Dividends on UGI Common Stock	(58.3)	(55.7)
Distributions on AmeriGas Partners Common Units	(71.3)	(45.7)
Issuances of debt	1,551.0	981.2
Repayments of debt	(218.7)	(984.0)
Increase in bank loans	32.6	22.0
Receivables Facility net borrowings (repayments)	18.9	(12.1)
Issuances of UGI Common Stock	8.9	21.9
Other	0.5	3.3
Net cash provided (used) by financing activities	1,540.2	(69.1)
EFFECT OF EXCHANGE RATE CHANGES ON CASH	3.0	(0.3)
Cash and cash equivalents increase	163.9	37.4
Cash and cash equivalents:
End of period	402.4	298.1
Beginning of period	238.5	260.7
Increase	163.9	37.4
AmeriGas Partners [Member]
CASH FLOWS FROM FINANCING ACTIVITIES
Issuance of AmeriGas Partners Common Units	$ 276.6