Debt	6 Months Ended
Mar. 31, 2017
Debt Disclosure [Abstract]
Debt	Note 8 — Debt UGI Utilities Pursuant to a Note Purchase Agreement, in October 2016, UGI Utilities issued $100 aggregate principal amount of 4.12% Senior Notes due October 2046 (the “UGI Utilities’ 4.12% Senior Notes”). The net proceeds of the issuance of the UGI Utilities’ 4.12% Senior Notes were used (1) to provide additional financing for UGI Utilities’ infrastructure replacement and betterment capital program and information technology initiatives and (2) for general corporate purposes. The UGI Utilities’ 4.12% Senior Notes are unsecured and rank equally with UGI Utilities’ existing outstanding senior debt. AmeriGas Propane In December 2016, AmeriGas Partners issued $700 principal amount of 5.50% Senior Notes due May 2025 (the “AmeriGas Partners’ 5.50% Senior Notes”). The AmeriGas Partners’ 5.50% Senior Notes rank equally with AmeriGas Partners’ existing outstanding senior notes. The net proceeds from the issuance of the AmeriGas Partners’ 5.50% Senior Notes were used in December 2016 for (1) the early repayment, pursuant to a tender offer, of a portion of AmeriGas Partners’ 7.00% Senior Notes having an aggregate principal balance of $500.0 plus accrued and unpaid interest and early redemption premiums; (2) the reduction of short-term borrowings; and (3) general corporate purposes. In February 2017, AmeriGas Partners issued $525 principal amount of 5.75% Senior Notes due May 2027 (the “AmeriGas Partners’ 5.75% Senior Notes”). The AmeriGas Partners’ 5.75% Senior Notes rank equally with AmeriGas Partners’ existing outstanding senior notes. The net proceeds from the issuance of the AmeriGas Partners’ 5.75% Senior Notes were used in February 2017 for (1) the early repayment, pursuant to a tender offer, of a portion of AmeriGas Partners’ 7.00% Senior Notes having an aggregate principal balance of $378.3 plus accrued and unpaid interest and early redemption premiums; (2) the repayment of short-term borrowings; and (3) general corporate purposes. In connection with these early repayments of AmeriGas’ 7.00% Senior Notes, during the three and six months ended March 31, 2017, the Partnership recognized pre-tax losses of $22.1 and $55.3, comprising $18.9 and $47.7 of early redemption premiums and the write-off of $3.2 and $7.6 of unamortized debt issuance costs, respectively. The pre-tax losses are reflected in “Loss on extinguishments of debt” on the Condensed Consolidated Statements of Income. In March 2017, AmeriGas Partners issued a notice of early redemption for the remaining AmeriGas Partners’ 7.00% Senior Notes not previously tendered, having an aggregate principal balance of $102.5, plus early redemption premiums and accrued and unpaid interest. These 7.00% Senior Notes, which have a redemption date of May 20, 2017, are included in “Current maturities of long-term debt” on the March 31, 2017, Condensed Consolidated Balance Sheet. The Partnership expects to recognize a pre-tax loss on extinguishment of debt of approximately $5.0 during the third quarter of Fiscal 2017 associated with this redemption.

Note 8 — Debt

UGI Utilities

Pursuant to a Note Purchase Agreement, in October 2016, UGI Utilities issued $100 aggregate principal amount of 4.12% Senior Notes due October 2046 (the “UGI Utilities’ 4.12% Senior Notes”). The net proceeds of the issuance of the UGI Utilities’ 4.12% Senior Notes were used (1) to provide additional financing for UGI Utilities’ infrastructure replacement and betterment capital program and information technology initiatives and (2) for general corporate purposes. The UGI Utilities’ 4.12% Senior Notes are unsecured and rank equally with UGI Utilities’ existing outstanding senior debt.

AmeriGas Propane

In December 2016, AmeriGas Partners issued $700 principal amount of 5.50% Senior Notes due May 2025 (the “AmeriGas Partners’ 5.50% Senior Notes”). The AmeriGas Partners’ 5.50% Senior Notes rank equally with AmeriGas Partners’ existing outstanding senior notes. The net proceeds from the issuance of the AmeriGas Partners’ 5.50% Senior Notes were used in December 2016 for (1) the early repayment, pursuant to a tender offer, of a portion of AmeriGas Partners’ 7.00% Senior Notes having an aggregate principal balance of $500.0 plus accrued and unpaid interest and early redemption premiums; (2) the reduction of short-term borrowings; and (3) general corporate purposes.

In February 2017, AmeriGas Partners issued $525 principal amount of 5.75% Senior Notes due May 2027 (the “AmeriGas Partners’ 5.75% Senior Notes”). The AmeriGas Partners’ 5.75% Senior Notes rank equally with AmeriGas Partners’ existing outstanding senior notes. The net proceeds from the issuance of the AmeriGas Partners’ 5.75% Senior Notes were used in February 2017 for (1) the early repayment, pursuant to a tender offer, of a portion of AmeriGas Partners’ 7.00% Senior Notes having an aggregate principal balance of $378.3 plus accrued and unpaid interest and early redemption premiums; (2) the repayment of short-term borrowings; and (3) general corporate purposes.

In connection with these early repayments of AmeriGas’ 7.00% Senior Notes, during the three and six months ended March 31, 2017, the Partnership recognized pre-tax losses of $22.1 and $55.3, comprising $18.9 and $47.7 of early redemption premiums and the write-off of $3.2 and $7.6 of unamortized debt issuance costs, respectively. The pre-tax losses are reflected in “Loss on extinguishments of debt” on the Condensed Consolidated Statements of Income.

In March 2017, AmeriGas Partners issued a notice of early redemption for the remaining AmeriGas Partners’ 7.00% Senior Notes not previously tendered, having an aggregate principal balance of $102.5, plus early redemption premiums and accrued and unpaid interest. These 7.00% Senior Notes, which have a redemption date of May 20, 2017, are included in “Current maturities of long-term debt” on the March 31, 2017, Condensed Consolidated Balance Sheet. The Partnership expects to recognize a pre-tax loss on extinguishment of debt of approximately $5.0 during the third quarter of Fiscal 2017 associated with this redemption.