Significant Accounting Policies (Tables)

3 Months Ended

Dec. 31, 2013

Accounting Policies [Abstract]

Shares used in computing basic and diluted earnings per share

Shares used in computing basic and diluted earnings per share are as follows:

	Three Months Ended December 31,
	2013	2012
Denominator (thousands of shares):
Average common shares outstanding for basic computation	114,825	113,136
Incremental shares issuable for stock options and awards	1,645	1,354
Average common shares outstanding for diluted computation	116,470	114,490

Schedule of Changes in Accumulated Other Comprehensive Income [Table Text Block]

							Foreign
							Currency
	Postretirement			Derivative			Translation
	Benefit Plans			Instruments			Adjustments		Total
Balance, September 30, 2013	$	(16.4	)	$	(26.9	)	$	51.7	$	8.4
Other comprehensive income before reclassification adjustments (after-tax)	—			40.5			12.3		52.8
Amounts reclassified from AOCI and noncontrolling interests:
Reclassification adjustments (pre-tax)	0.3			(15.8		)	—		(15.5		)
Reclassification adjustments tax (expense) benefit	0.1			2.0			—		2.1
Reclassification adjustments (after-tax)	0.4			(13.8		)	—		(13.4		)
Other comprehensive income	0.4			26.7			12.3		39.4
Deduct comprehensive income attributable to noncontrolling interests, principally in AmeriGas Partners	—			(15.6		)	—		(15.6		)
Other comprehensive income attributable to UGI	0.4			11.1			12.3		23.8
Balance, December 31, 2013	$	(16.0	)	$	(15.8	)	$	64.0	$	32.2