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STATEMENTS OF CHANGES IN PROPRIETARY CAPITAL (USD $) In Millions | 12 Months Ended
--- | ---
Sep. 30, 2011 | Sep. 30, 2010 | Sep. 30, 2009
Balance at Beginning of Period | $ 5,137 | $ 4,218 | $ 3,563
Net income (loss) | 162 | 972 | 726
Other comprehensive income (loss) |  |  |
Net unrealized loss on future cash flow hedges | (50) | (37) | (146)
Reclassification to earnings from cash flow hedges | 7 | 17 | 108
Total other comprehensive income (loss) | (43) | (20) | (38)
Return on power program appropriation investment | (7) | (9) | (13)
Return of power program appropriation investment | (20) | (24) | (20)
Balance at End of Period | 5,229 | 5,137 | 4,218
Power Program Appropriation Investment |  |  |
Balance at Beginning of Period | 328 | 348 | 368
Net income (loss) | 0 | 0 | 0
Other comprehensive income (loss) |  |  |
Net unrealized loss on future cash flow hedges | 0 | 0 | 0
Reclassification to earnings from cash flow hedges | 0 | 0 | 0
Total other comprehensive income (loss) | 0 | 0 | 0
Return on power program appropriation investment | 0 | 0 | 0
Return of power program appropriation investment | (20) | (20) | (20)
Balance at End of Period | 308 | 328 | 348
Power Program Retained Earnings |  |  |
Balance at Beginning of Period | 4,264 | 3,291 | 2,571
Net income (loss) | 172 | 982 | 733
Other comprehensive income (loss) |  |  |
Net unrealized loss on future cash flow hedges | 0 | 0 | 0
Reclassification to earnings from cash flow hedges | 0 | 0 | 0
Total other comprehensive income (loss) | 0 | 0 | 0
Return on power program appropriation investment | (7) | (9) | (13)
Return of power program appropriation investment | 0 | 0 | 0
Balance at End of Period | 4,429 | 4,264 | 3,291
Nonpower Programs Appropriation Investment Net |  |  |
Balance at Beginning of Period | 640 | 654 | 661
Net income (loss) | (10) | (10) | (7)
Other comprehensive income (loss) |  |  |
Net unrealized loss on future cash flow hedges | 0 | 0 | 0
Reclassification to earnings from cash flow hedges | 0 | 0 | 0
Total other comprehensive income (loss) | 0 | 0 | 0
Return on power program appropriation investment | 0 | 0 | 0
Return of power program appropriation investment | 0 | (4) | 0
Balance at End of Period | 630 | 640 | 654
Accumulated Other Comprehensive Income (Loss) |  |  |
Balance at Beginning of Period | (95) | (75) | (37)
Net income (loss) | 0 | 0 | 0
Other comprehensive income (loss) |  |  |
Net unrealized loss on future cash flow hedges | (50) | (37) | (146)
Reclassification to earnings from cash flow hedges | 7 | 17 | 108
Total other comprehensive income (loss) | (43) | (20) | (38)
Return on power program appropriation investment | 0 | 0 | 0
Return of power program appropriation investment | 0 | 0 | 0
Balance at End of Period | (138) | (95) | (75)
Comprehensive Income (Loss) |  |  |
Net income (loss) | 162 | 972 | 726
Other comprehensive income (loss) |  |  |
Net unrealized loss on future cash flow hedges | (50) | (37) | (146)
Reclassification to earnings from cash flow hedges | 7 | 17 | 108
Total other comprehensive income (loss) | (43) | (20) | (38)
Total comprehensive income (loss) | $ 119 | $ 952 | $ 688

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