Revisions of Condensed Consolidated Financial Statements Statement of Income (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Net income attributable to UGI Corporation	$ 122.0	$ 102.5
Revenue, Net	2,315.9	2,018.7
Cost of sales	1,429.9	1,215.5
Operating Expenses	431.5	426.9
Depreciation	78.6	72.5
Operating income	363.7	294.2
Interest and Debt Expense	(59.3)	(61.5)
Income (loss) before income taxes	304.4	232.7
Income Tax Expense (Benefit)	(86.9)	(64.9)
Net income	217.5	167.8
Net income attributable to noncontrolling interests, principally in AmeriGas Partners	(95.5)	(65.3)
Earnings Per Share, Basic	$ 1.06	$ 0.91
Earnings Per Share, Diluted	$ 1.05	$ 0.90
Scenario, Previously Reported [Member]
Net income attributable to UGI Corporation		102.6
Revenue, Net		2,023.2
Cost of sales		1,218.8
Depreciation		71.8
Operating income		296.1
Interest and Debt Expense		(60.3)
Income (loss) before income taxes		235.8
Income Tax Expense (Benefit)		65.1
Net income		170.7
Net income attributable to noncontrolling interests, principally in AmeriGas Partners		68.1
Earnings Per Share, Basic		$ 0.91
Earnings Per Share, Diluted		$ 0.90
Restatement Adjustment [Member]
Net income attributable to UGI Corporation		(0.1)
Revenue, Net		(4.5)
Cost of sales		(3.3)
Depreciation		0.7
Operating income		(1.9)
Interest and Debt Expense		(1.2)
Income (loss) before income taxes		(3.1)
Income Tax Expense (Benefit)		(0.2)
Net income		(2.9)
Net income attributable to noncontrolling interests, principally in AmeriGas Partners		$ (2.8)