XML 39 R5.htm IDEA: XBRL DOCUMENT v2.4.0.6
STATEMENTS OF CHANGES IN PROPRIETARY CAPITAL (UNAUDITED) (USD $)
In Millions, unless otherwise specified
 3 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Balance at Beginning of Period $ 5,229 $ 5,137
Net income (loss) (173) (48)
Other comprehensive income (loss)    
Net unrealized gain (loss) on future cash flow hedges 42 49
Reclassification to earnings from cash flow hedges 3 7
Total other comprehensive income (loss) 45 56
Return on power program appropriation investment (2) (2)
Return of power program appropriation investment (5) (5)
Balance at End of Period 5,094 5,138
Power Program Appropriation Investment
    
Balance at Beginning of Period 308 328
Net income (loss) 0 0
Other comprehensive income (loss)    
Net unrealized gain (loss) on future cash flow hedges 0 0
Reclassification to earnings from cash flow hedges 0 0
Total other comprehensive income (loss) 0 0
Return on power program appropriation investment 0 0
Return of power program appropriation investment (5) (5)
Balance at End of Period 303 323
Power Program Retained Earnings
    
Balance at Beginning of Period 4,429 4,264
Net income (loss) (170) (45)
Other comprehensive income (loss)    
Net unrealized gain (loss) on future cash flow hedges 0 0
Reclassification to earnings from cash flow hedges 0 0
Total other comprehensive income (loss) 0 0
Return on power program appropriation investment (2) (2)
Return of power program appropriation investment 0 0
Balance at End of Period 4,257 4,217
Nonpower Programs Appropriation Investment, Net
    
Balance at Beginning of Period 630 640
Net income (loss) (3) (3)
Other comprehensive income (loss)    
Net unrealized gain (loss) on future cash flow hedges 0 0
Reclassification to earnings from cash flow hedges 0 0
Total other comprehensive income (loss) 0 0
Return on power program appropriation investment 0 0
Return of power program appropriation investment 0 0
Balance at End of Period 627 637
Accumulated Other Comprehensive Income (Loss)
    
Balance at Beginning of Period (138) (95)
Net income (loss) 0 0
Other comprehensive income (loss)    
Net unrealized gain (loss) on future cash flow hedges 42 49
Reclassification to earnings from cash flow hedges 3 7
Total other comprehensive income (loss) 45 56
Return on power program appropriation investment 0 0
Return of power program appropriation investment 0 0
Balance at End of Period (93) (39)
Comprehensive Income (Loss)
    
Net income (loss) (173) (48)
Other comprehensive income (loss)    
Net unrealized gain (loss) on future cash flow hedges 42 49
Reclassification to earnings from cash flow hedges 3 7
Total other comprehensive income (loss) 45 56
Total comprehensive income (loss) $ (128) $ 8