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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Sep. 30, 2019
Accounting Policies [Abstract] |
Schedule of Other Non-Operating Income (Expense) | Other non-operating income (expense), net comprises the following:
| 2019 |  | 2018 |  | 2017
Gains (losses) on foreign currency contracts, net | $ | 37.7 |  |  | $ | 16.2 |  |  | $ | (23.9 | )
Pension and other postretirement plans non-service income (expense), net | 0.5 |  |  | (0.6 | ) |  | (5.8 | )
Total other non-operating income (expense), net | $ | 38.2 |  |  | $ | 15.6 |  |  | $ | (29.7 | )
Shares Used in Computing Basic and Diluted Earnings Per Share | In the following table, we present shares used in computing basic and diluted earnings per share for Fiscal 2019, Fiscal 2018 and Fiscal 2017:
(Thousands of shares) |  | 2019 |  | 2018 |  | 2017
Weighted-average common shares outstanding for basic computation (a) |  | 178,417 |  |  | 173,908 |  |  | 173,662 |
Incremental shares issuable for stock options and common stock awards (b) |  | 2,694 |  |  | 2,997 |  |  | 3,497 |
Weighted-average common shares outstanding for diluted computation |  | 181,111 |  |  | 176,905 |  |  | 177,159 |
(a) | Fiscal 2019 includes the partial-year impact from the August 2019 issuance of 34,613 shares of UGI Common Stock in connection with the AmeriGas Merger (see Note 5).
(b) For Fiscal 2019 and Fiscal 2017, there were 1,162 shares and 146 shares, respectively, associated with outstanding stock option awards that were not included in the computation of diluted earnings per share above because their effect was antidilutive.
Schedule of Reconciliation of the Total Cash, Cash Equivalents and Restricted Cash | The following table provides a reconciliation of the total cash, cash equivalents and restricted cash reported on the Consolidated Balance Sheets to the corresponding amounts reported on the Consolidated Statements of Cash Flows.
|  | Cash, Cash Equivalents and Restricted Cash
|  | September 30, 2019 |  | September 30, 2018 |  | September 30, 2017 |  | September 30, 2016
Cash and cash equivalents |  | $ | 447.1 |  |  | $ | 452.6 |  |  | $ | 558.4 |  |  | $ | 502.8 |
Restricted cash |  | 63.7 |  |  | 9.6 |  |  | 10.3 |  |  | 15.6 |
Cash, cash equivalents and restricted cash |  | $ | 510.8 |  |  | $ | 462.2 |  |  | $ | 568.7 |  |  | $ | 518.4 |
Schedule of Reconciliation of the Total Cash, Cash Equivalents and Restricted Cash | The following table provides a reconciliation of the total cash, cash equivalents and restricted cash reported on the Consolidated Balance Sheets to the corresponding amounts reported on the Consolidated Statements of Cash Flows.
|  | Cash, Cash Equivalents and Restricted Cash
|  | September 30, 2019 |  | September 30, 2018 |  | September 30, 2017 |  | September 30, 2016
Cash and cash equivalents |  | $ | 447.1 |  |  | $ | 452.6 |  |  | $ | 558.4 |  |  | $ | 502.8 |
Restricted cash |  | 63.7 |  |  | 9.6 |  |  | 10.3 |  |  | 15.6 |
Cash, cash equivalents and restricted cash |  | $ | 510.8 |  |  | $ | 462.2 |  |  | $ | 568.7 |  |  | $ | 518.4 |
Estimated Useful Lives by Type | At September 30, 2019, estimated useful lives by asset type were as follows:
Asset Type |  | Minimum Estimated Useful Life (in years) |  | Maximum Estimated Useful Life (in years)
Buildings and improvements |  | 10 |  | 40
Equipment, primarily cylinders and tanks |  | 5 |  | 30
Electricity generation facilities |  | 25 |  | 40
Pipeline and related assets |  | 25 |  | 40
Transportation equipment and office furniture and fixtures |  | 3 |  | 10
Computer software |  | 1 |  | 10
Property, plant and equipment comprise the following at September 30:
| 2019 |  | 2018
Utility: |  |  |
Distribution | $ | 3,366.2 |  |  | $ | 3,106.6 |
Transmission | 106.0 |  |  | 97.1 |
General and other | 389.3 |  |  | 281.7 |
Work in process | 76.6 |  |  | 130.9 |
Total Utility | 3,938.1 |  |  | 3,616.3 |
Non-utility: |  |  |
Land | 183.5 |  |  | 191.4 |
Buildings and improvements | 403.8 |  |  | 364.9 |
Transportation equipment | 258.3 |  |  | 257.1 |
Equipment, primarily cylinders and tanks | 3,455.2 |  |  | 3,375.4 |
Electric generation | 326.9 |  |  | 319.5 |
Pipeline and related assets | 1,150.2 |  |  | 473.0 |
Other | 255.3 |  |  | 306.6 |
Work in process | 101.7 |  |  | 57.9 |
Total non-utility | 6,134.9 |  |  | 5,345.8 |
Total property, plant and equipment | $ | 10,073.0 |  |  | $ | 8,962.1 |
Average Composite Depreciation Rates | The average composite depreciation rates at our Gas Utility and Electric Utility for Fiscal 2019, Fiscal 2018 and Fiscal 2017 were as follows:
| 2019 |  | 2018 |  | 2017
Gas Utility | 2.2 | % |  | 2.3 | % |  | 2.2 | %
Electric Utility | 2.1 | % |  | 2.2 | % |  | 2.4 | %

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