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Condensed Consolidated Statements of Changes in Equity (USD $) In Millions | Total | Parent [Member] | Common stock, without par value | Retained earnings | Accumulated other comprehensive income (loss) | Treasury stock | Noncontrolling Interest [Member] | Accumulated Defined Benefit Plans Adjustment [Member] Accumulated other comprehensive income (loss)
--- | --- | --- | --- | --- | --- | --- | --- | ---
Stockholders' Equity Attributable to Noncontrolling Interest at Sep. 30, 2011 |  |  |  |  |  |  | $ 213.4 |
Beginning Balance at Sep. 30, 2011 |  |  | 937.4 | 1,085.8 | (17.7) | (27.8) |  |
Common Stock issued in connection with employee and director plans, net of tax withheld |  |  | 7.6 |  |  |  |  |
Dividend reinvestment plan |  |  | 1.6 |  |  | 0.6 |  |
Excess tax benefits realized on equity-based compensation |  |  | 0.8 |  |  |  |  |
Stock-based compensation expense |  |  | 7.0 |  |  |  |  |
Adjustments to reflect change in ownership of AmeriGas Partners, net of tax |  |  | 194.4 |  | 1.9 |  | (321.4) |
Net income attributable to UGI Corporation | 214.1 |  |  | 214.1 |  |  |  |
Cash dividends on Common Stock |  |  |  | (88.7) |  |  |  |
Net gains (losses) on derivative instruments, net of tax | (143.9) |  |  |  | (74.1) |  |  |
Reclassification of net losses on derivative instruments, net of tax | (69.5) |  |  |  | 45.8 |  |  |
Benefit plans, net of tax |  |  |  |  |  |  |  | 0.3
Foreign currency, net of tax | (33.9) |  |  |  | (33.9) |  |  |
Common Stock issued in connection with employee and director plans, net of tax withheld |  |  |  |  |  | 2.9 |  |
Reacquired common stock - employee and director plans |  |  |  |  |  | 0 |  |
Net income attributable to noncontrolling interests, principally in AmeriGas Partners | 46.5 |  |  |  |  |  | 46.5 |
Net losses on derivative instruments |  |  |  |  |  |  | (69.8) |
Reclassifications of net losses on derivative instruments |  |  |  |  |  |  | 23.7 |
Dividends and distributions |  |  |  |  |  |  | (126.8) |
AmeriGas Partners Common Unit public offering |  |  |  |  |  |  | 276.6 |
AmeriGas Partners Common Units issued for Heritage Acquisition |  |  |  |  |  |  | 1,132.6 |
Other |  |  |  |  |  |  | 4.0 |
Total equity | 3,436.8 |  |  |  |  |  |  |
Stockholders' Equity Attributable to Noncontrolling Interest at Jun. 30, 2012 | 1,178.8 |  |  |  |  |  | 1,178.8 |
Ending Balance at Jun. 30, 2012 | 2,258.0 | 2,258.0 | 1,148.8 | 1,211.2 | (77.7) | (24.3) |  |
Stockholders' Equity Attributable to Noncontrolling Interest at Sep. 30, 2012 | 1,085.7 |  |  |  |  |  | 1,085.7 |
Beginning Balance at Sep. 30, 2012 | 2,233.1 |  | 1,157.7 | 1,166.1 | (62.0) | (28.7) |  |
Common Stock issued in connection with employee and director plans, net of tax withheld |  |  | 19.7 |  |  |  |  |
Dividend reinvestment plan |  |  | 1.4 |  |  | 0.8 |  |
Excess tax benefits realized on equity-based compensation |  |  | 5.7 |  |  |  |  |
Stock-based compensation expense |  |  | 8.4 |  |  |  |  |
Adjustments to reflect change in ownership of AmeriGas Partners, net of tax |  |  | 0 |  | 0 |  | 0 |
Net income attributable to UGI Corporation | 289.2 |  |  | 289.2 |  |  |  |
Cash dividends on Common Stock |  |  |  | (93.4) |  |  |  |
Net gains (losses) on derivative instruments, net of tax | (11.1) |  |  |  | 6.6 |  |  |
Reclassification of net losses on derivative instruments, net of tax | (59.7) |  |  |  | 22.3 |  |  |
Benefit plans, net of tax |  |  |  |  |  |  |  | 1.1
Foreign currency, net of tax | 1.3 |  |  |  | 1.3 |  |  |
Common Stock issued in connection with employee and director plans, net of tax withheld |  |  |  |  |  | 20.8 |  |
Reacquired common stock - employee and director plans |  |  |  |  |  | (19.1) |  |
Net income attributable to noncontrolling interests, principally in AmeriGas Partners | 192.6 |  |  |  |  |  | 192.6 |
Net losses on derivative instruments |  |  |  |  |  |  | (17.8) |
Reclassifications of net losses on derivative instruments |  |  |  |  |  |  | 37.4 |
Dividends and distributions |  |  |  |  |  |  | (168.7) |
AmeriGas Partners Common Unit public offering |  |  |  |  |  |  | 0 |
AmeriGas Partners Common Units issued for Heritage Acquisition |  |  |  |  |  |  | 0 |
Other |  |  |  |  |  |  | 3.0 |
Total equity | 3,630.1 |  |  |  |  |  |  |
Stockholders' Equity Attributable to Noncontrolling Interest at Jun. 30, 2013 | 1,132.2 |  |  |  |  |  | 1,132.2 |
Ending Balance at Jun. 30, 2013 | $ 2,497.9 | $ 2,497.9 | $ 1,192.9 | $ 1,361.9 | $ (30.7) | $ (26.2) |  |

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