Consolidated Statements of Changes In Equity (USD $) In Millions	Total	Total UGI Corporation Stockholder's Equity	Common stock, without par value	Retained earnings	Accumulated other comprehensive income (loss)	Treasury stock	Noncontrolling interests
Beginning Balance at Sep. 30, 2008			$ 858.3	$ 630.9	$ (15.2)	$ (56.3)	$ 159.2
Net income attributable to UGI Corporation	258.5			258.5
Net income attributable to noncontrolling interests, principally in AmeriGas Partners	123.5						123.5
Net losses on derivative instruments, net of tax	(204.1)				(127.3)
Net gains (losses) on derivative instruments							(76.8)
Reclassifications of net losses on derivative instruments (net of tax of $(20.4), $(25.3) and $(78.6), respectively)	225.0				116.2
Reclassification of net (gains) losses on derivative instruments							108.8
Benefit plans, principally actuarial gains (losses), net of tax	(44.4)				(44.4)
Reclassification of benefit plans actuarial losses and prior service costs, net of tax, to net income	2.3				2.3
Reclassifications of pension plans actuarial losses and prior service cost, net of tax, to regulatory assets	0
Foreign currency translation adjustments, net of tax	29.5				29.5
Cash dividends on Common Stock ($1.02, $0.90 and $0.785 per share, respectively)				(85.1)
Dividends and distributions							(91.7)
Other							2.4
Common stock issued:
Employee and director plans			2.9			5.9
Dividend reinvestment plan			1.6			0.8
Excess tax benefits realized on equity-based compensation			2.9
Stock-based compensation expense			9.9
Ending Balance at Sep. 30, 2009	1,816.8	1,591.4	875.6	804.3	(38.9)	(49.6)	225.4
Net income attributable to UGI Corporation	261.0			261.0
Net income attributable to noncontrolling interests, principally in AmeriGas Partners	94.7						94.7
Net losses on derivative instruments, net of tax	(16.8)				(37.8)
Net gains (losses) on derivative instruments							21.0
Reclassifications of net losses on derivative instruments (net of tax of $(20.4), $(25.3) and $(78.6), respectively)	22.9				37.2
Reclassification of net (gains) losses on derivative instruments							(14.3)
Benefit plans, principally actuarial gains (losses), net of tax	(18.7)				(18.7)
Reclassification of benefit plans actuarial losses and prior service costs, net of tax, to net income	4.2				4.2
Reclassifications of pension plans actuarial losses and prior service cost, net of tax, to regulatory assets	83.3				83.3
Foreign currency translation adjustments, net of tax	(39.4)				(39.4)
Cash dividends on Common Stock ($1.02, $0.90 and $0.785 per share, respectively)				(98.6)
Dividends and distributions							(89.1)
Other							(0.6)
Common stock issued:
Employee and director plans			14.4			10.6
Dividend reinvestment plan			1.7			0.8
Excess tax benefits realized on equity-based compensation			4.2
Stock-based compensation expense			10.2
Ending Balance at Sep. 30, 2010	2,061.6	1,824.5	906.1	966.7	(10.1)	(38.2)	237.1
Net income attributable to UGI Corporation	232.9			232.9
Net income attributable to noncontrolling interests, principally in AmeriGas Partners	75.3						75.3
Net losses on derivative instruments, net of tax	(10.8)				(23.4)
Net gains (losses) on derivative instruments							12.6
Reclassifications of net losses on derivative instruments (net of tax of $(20.4), $(25.3) and $(78.6), respectively)	11.8				29.9
Reclassification of net (gains) losses on derivative instruments							(18.1)
Benefit plans, principally actuarial gains (losses), net of tax	0.1				0.1
Reclassification of benefit plans actuarial losses and prior service costs, net of tax, to net income	0.6				0.6
Reclassifications of pension plans actuarial losses and prior service cost, net of tax, to regulatory assets	0
Foreign currency losses on long-term intra-company transactions	(0.8)				(0.8)
Foreign currency translation adjustments, net of tax	(14.0)				(14.0)
Cash dividends on Common Stock ($1.02, $0.90 and $0.785 per share, respectively)				(113.8)
Dividends and distributions							(94.0)
Other							0.5
Common stock issued:
Employee and director plans			14.7			9.7
Dividend reinvestment plan			2.2			0.7
Excess tax benefits realized on equity-based compensation			3.8
Stock-based compensation expense			10.6
Ending Balance at Sep. 30, 2011	$ 2,191.1	$ 1,977.7	$ 937.4	$ 1,085.8	$ (17.7)	$ (27.8)	$ 213.4