CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (unaudited) - USD ($) $ in Millions	Total	Total UGI stockholders’ equity	Preferred stock, without par value	Preferred stock, without par value Cumulative effect of change in accounting	Common stock, without par value	Common stock, without par value Cumulative effect of change in accounting	Retained earnings	Retained earnings Cumulative effect of change in accounting	Accumulated other comprehensive income (loss)	Treasury stock	Noncontrolling interests
Balance, beginning of period at Sep. 30, 2022			$ 162	$ 5	$ 1,483	$ (6)	$ 4,841	$ 1	$ (380)	$ (40)	$ 8
Increase (Decrease) in Stockholders' Equity
Common Stock issued in connection with employee and director plans, net of tax withheld					9
Equity-based compensation expense					14
Losses on common stock transactions in connection with employee and director plans							(5)
Net (loss) income attributable to UGI Corporation	$ (1,633)						(1,633)
Cash dividends on UGI Common Stock ($0.375, $0.375, $1.125 and $1.095, respectively)							(230)
Net gains on derivative instruments	10								10
Reclassification of net gains on derivative instruments	(20)								(20)
Benefit plans	(1)								(1)
Foreign currency adjustments	169								169
Common Stock issued in connection with employee and director plans, net of tax withheld										7
Repurchases of UGI Common Stock										(22)
Other											1
Balance, end of period at Jun. 30, 2023	4,373	$ 4,364	167		1,500		2,974		(222)	(55)	9
Balance, beginning of period at Mar. 31, 2023			167		1,492		3,842		(241)	(55)	9
Increase (Decrease) in Stockholders' Equity
Common Stock issued in connection with employee and director plans, net of tax withheld					3
Equity-based compensation expense					5
Net (loss) income attributable to UGI Corporation	(789)						(789)
Cash dividends on UGI Common Stock ($0.375, $0.375, $1.125 and $1.095, respectively)							(79)
Net gains on derivative instruments	22								22
Reclassification of net gains on derivative instruments	(10)								(10)
Benefit plans	(1)								(1)
Foreign currency adjustments	8								8
Balance, end of period at Jun. 30, 2023	4,373	4,364	167		1,500		2,974		(222)	(55)	9
Balance, beginning of period at Sep. 30, 2023	4,394		167		1,503		3,027		(256)	(55)	8
Increase (Decrease) in Stockholders' Equity
Equity-based compensation expense					6
Settlement of Equity Units			(167)		166
Net (loss) income attributable to UGI Corporation	542						542
Cash dividends on UGI Common Stock ($0.375, $0.375, $1.125 and $1.095, respectively)							(238)
Net gains on derivative instruments	1								1
Reclassification of net gains on derivative instruments	(28)								(28)
Benefit plans	(1)								(1)
Foreign currency adjustments	15								15
Common Stock issued in connection with employee and director plans, net of tax withheld										(1)
Other											1
Balance, end of period at Jun. 30, 2024	4,690	4,681	0		1,675		3,331		(269)	(56)	9
Balance, beginning of period at Mar. 31, 2024			167		1,505		3,460		(254)	(56)	9
Increase (Decrease) in Stockholders' Equity
Equity-based compensation expense					4
Settlement of Equity Units			(167)		166
Net (loss) income attributable to UGI Corporation	(48)						(48)
Cash dividends on UGI Common Stock ($0.375, $0.375, $1.125 and $1.095, respectively)							(81)
Net gains on derivative instruments	4								4
Reclassification of net gains on derivative instruments	(9)								(9)
Benefit plans	0
Foreign currency adjustments	(10)								(10)
Common Stock issued in connection with employee and director plans, net of tax withheld										(1)
Reacquired UGI Common Stock - employee and director plans										1
Balance, end of period at Jun. 30, 2024	$ 4,690	$ 4,681	$ 0		$ 1,675		$ 3,331		$ (269)	$ (56)	$ 9