CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) $ in Millions	Total	Total UGI stockholders’ equity	Preferred stock, without par value	Common stock, without par value	Retained earnings	Accumulated other comprehensive income (loss)	Treasury stock	Noncontrolling interests
Balance, beginning of period at Sep. 30, 2020			$ 0	$ 1,416	$ 2,908	$ (147)	$ (49)	$ 9
Increase (Decrease) in Stockholders' Equity
Common Stock issued in connection with employee and director plans, net of tax withheld				1
Equity-based compensation expense				2
Losses on common stock transactions in connection with employee and director plans					(3)
Net (loss) income attributable to UGI Corporation	$ 303				303
Cash dividends on UGI Common Stock ($0.345, and $0.330, respectively)					(69)
Net gains on derivative instruments	0
Reclassification of net losses on derivative instruments	5					5
Benefit plans	0					0
Foreign currency adjustments	63					63
Common Stock issued in connection with employee and director plans, net of tax withheld							7
Net (loss) income including noncontrolling interests	303							0
Balance, end of period at Dec. 31, 2020	4,446	$ 4,437	0	1,419	3,139	(79)	(42)	9
Balance, beginning of period at Sep. 30, 2021	5,531		213	1,394	4,081	(140)	(26)	9
Increase (Decrease) in Stockholders' Equity
Other			1
Common Stock issued in connection with employee and director plans, net of tax withheld				5
Equity-based compensation expense				3
Losses on common stock transactions in connection with employee and director plans					(4)
Net (loss) income attributable to UGI Corporation	(97)				(97)
Cash dividends on UGI Common Stock ($0.345, and $0.330, respectively)					(72)
Net gains on derivative instruments	10					10
Reclassification of net losses on derivative instruments	4					4
Benefit plans	2					2
Foreign currency adjustments	(32)					(32)
Common Stock issued in connection with employee and director plans, net of tax withheld							7
Net (loss) income including noncontrolling interests	(96)							1
Balance, end of period at Dec. 31, 2021	$ 5,359	$ 5,349	$ 214	$ 1,402	$ 3,908	$ (156)	$ (19)	$ 10