Inventories (Details) (UGI Utilities, USD $) In Millions, unless otherwise specified	12 Months Ended				0 Months Ended
	Sep. 30, 2014 Minimum	Sep. 30, 2014 Maximum	Sep. 30, 2014 Storage Contract Administrative Agreements Storage_Agreement ft3	Sep. 30, 2013 Storage Contract Administrative Agreements ft3	Nov. 01, 2014 New Storage Agreement Energy Services
Public Utilities, Inventory
Number of storage agreements (in storage agreements)			4
Volume of gas storage inventories released under SCAAs with non-affiliates (In Cubic Feet)			3,900,000,000	600,000,000
Carrying value of gas storage inventories released under SCAAs with non-affiliates			$ 16.8	$ 2.4
Storage Agreement Term	1 year	3 years			1 year