Accumulated Other Comprehensive Income (Loss) (Tables)

9 Months Ended

Jun. 30, 2022

Equity [Abstract]

Schedule of Accumulated Other Comprehensive Income

The tables below present changes in AOCI, net of tax:

Three Months Ended June 30, 2022	Postretirement Benefit Plans		Derivative Instruments		Foreign Currency		Total
AOCI — March 31, 2022	$	(14)	$	11	$	(175)	$	(178)
Other comprehensive income (loss) before reclassification adjustments	—		8		(106)		(98)
Amounts reclassified from AOCI	—		3		—		3
Other comprehensive income (loss) attributable to UGI	—		11		(106)		(95)
AOCI — June 30, 2022	$	(14)	$	22	$	(281)	$	(273)
Three Months Ended June 30, 2021	Postretirement Benefit Plans		Derivative Instruments		Foreign Currency		Total
AOCI — March 31, 2021	$	(25)	$	(41)	$	(60)	$	(126)
Other comprehensive income before reclassification adjustments	—		—		16		16
Amounts reclassified from AOCI	—		5		—		5
Other comprehensive income attributable to UGI	—		5		16		21
AOCI — June 30, 2021	$	(25)	$	(36)	$	(44)	$	(105)

Nine Months Ended June 30, 2022	Postretirement Benefit Plans		Derivative Instruments		Foreign Currency		Total
AOCI — September 30, 2021	$	(17)	$	(33)	$	(90)	$	(140)
Other comprehensive income (loss) before reclassification adjustments	—		42		(191)		(149)
Amounts reclassified from AOCI	3		13		—		16
Other comprehensive income (loss) attributable to UGI	3		55		(191)		(133)
AOCI — June 30, 2022	$	(14)	$	22	$	(281)	$	(273)
Nine Months Ended June 30, 2021	Postretirement Benefit Plans		Derivative Instruments		Foreign Currency		Total
AOCI — September 30, 2020	$	(26)	$	(54)	$	(67)	$	(147)
Other comprehensive income before reclassification adjustments	—		4		23		27
Amounts reclassified from AOCI	1		14		—		15
Other comprehensive income attributable to UGI	1		18		23		42
AOCI — June 30, 2021	$	(25)	$	(36)	$	(44)	$	(105)