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Nature of Operations (Details)
In Millions, except Share data, unless otherwise specified
9 Months Ended
Jun. 30, 2012
Country
Oct. 14, 2011
Shell Acquisition [Member]
USD ($)
Oct. 14, 2011
Shell Acquisition [Member]
EUR (€)
Nature of Operations (Textual) [Abstract]      
Business acquired by parent through subsidiaries for cash (in dollars/euros)   $ 179.0 € 133.6
Nature of Operations (Additional Textual) [Abstract]      
General Partner held a general partner interest in AmeriGas Partners 1.00%    
Percentage of limited partnership interest in AmeriGas Partners 25.40%    
Effective ownership interest in AmeriGas OLP 27.10%    
Limited Partnership Common Units held in AmeriGas Partners (in units) 23,756,882    
General public as limited partner interests in AmeriGas Partners 73.60%    
Common Units Owned by Public (in units) 39,460,280    
Common Units Owned by ETP (in units) 29,567,362    
Number of countries (countries) 11