Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $) In Millions, except Share data	Jun. 30, 2011	Sep. 30, 2010	Jun. 30, 2010
ASSETS
Accounts receivable, allowances for doubtful accounts	$ 45.0	$ 34.6	$ 44.5
Property, plant and equipment, accumulated depreciation and amortization	$ 2,065.9	$ 1,916.5	$ 1,866.2
UGI Corporation stockholders' equity:
UGI Common Stock, without par value
UGI Common Stock, without par value authorized	300,000,000	300,000,000	300,000,000
UGI Common Stock, without par value, issued	115,507,094	115,400,294	115,375,794